Main Street Capital (MAIN) 10-Q 9 Aug 24 2024 Q2 Quarterly report Financial data

Cover

Cover - shares	6 Months Ended
	Jun. 30, 2024	Aug. 08, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2024
Document Transition Report	false
Securities Act File Number	001-33723
Entity Registrant Name	Main Street Capital Corporation
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	41-2230745
Entity Address, Address Line One	1300 Post Oak Boulevard
Entity Address, Address Line Two	8th Floor
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77056
City Area Code	713
Local Phone Number	350-6000
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	MAIN
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		87,073,879
Entity Central Index Key	0001396440
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024		Dec. 31, 2023
ASSETS
Investments at fair value:	$ 4,737,511	[1]	$ 4,286,271	[2]
Cash and cash equivalents	30,472		60,083
Interest and dividend receivable and other assets	116,003		89,337
Receivable for securities sold	63,615		0
Deferred financing costs (net of accumulated amortization of $13,370 and $12,329 as of June 30, 2024 and December 31, 2023, respectively)	9,734		7,879
Total assets	4,957,335		4,443,570
LIABILITIES
Debt	2,198,068		1,802,344
Accounts payable and other liabilities	51,143		62,576
Interest payable	25,823		17,025
Dividend payable	21,205		20,368
Deferred tax liability, net	82,140		63,858
Total liabilities	2,378,379		1,966,171
Commitments and contingencies (Note K)
NET ASSETS
Common stock, $0.01 par value per share (150,000,000 shares authorized; 86,552,506 and 84,830,679 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively)	865		848
Additional paid‑in capital	2,337,879		2,270,549
Total undistributed earnings	240,212		206,002
Total net assets	2,578,956		2,477,399
Total liabilities and net assets	$ 4,957,335		$ 4,443,570
NET ASSET VALUE PER SHARE (in dollars per share)	$ 29.80		$ 29.20
Line of Credit | Revolving Credit Facility
LIABILITIES
Debt	$ 625,000		$ 360,000
Unsecured Notes | July 2026 Notes
LIABILITIES
Debt	498,925		498,662
Unsecured Notes | March 2029 Notes
LIABILITIES
Debt	346,642		0
Unsecured Notes | June 2027 Notes
LIABILITIES
Debt	297,660		0
Unsecured Notes | SBIC Debentures
LIABILITIES
Debt	280,617		344,535
Unsecured Notes | December 2025 Notes
LIABILITIES
Debt	149,224		148,965
Unsecured Notes | May 2024 Notes
LIABILITIES
Debt	0		450,182
Control investments
ASSETS
Investments at fair value:	2,075,429	[1],[3]	2,006,698	[2],[4]
Affiliate investments
ASSETS
Investments at fair value:	752,764	[1],[5]	615,002	[2],[6]
Non‑Control/Non‑Affiliate investments
ASSETS
Investments at fair value:	$ 1,909,318	[1],[7]	$ 1,664,571	[2],[8]
[1] Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. Control investments are defined by the 1940 Act as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained. Control investments are defined by the 1940 Act as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained. Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments. Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments. Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments. Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($)	Jun. 30, 2024		Dec. 31, 2023
Investment, cost	$ 4,114,074,000	[1]	$ 3,725,960,000	[2]
Deferred financing costs, accumulated amortization	$ 13,370,000		$ 12,329,000
Common stock, par value (in dollars per share)	$ 0.01		$ 0.01
Common stock, shares authorized (in shares)	150,000,000		150,000,000
Common stock, shares issued (in shares)	86,552,506		84,830,679
Common stock, shares outstanding (in shares)	86,552,506		84,830,679
July 2026 Notes | Unsecured Notes
Debt instrument, par value	$ 500,000,000		$ 500,000,000
March 2029 Notes | Unsecured Notes
Debt instrument, par value	350,000,000
June 2027 Notes | Unsecured Notes
Debt instrument, par value	300,000,000
SBIC Debentures | Unsecured Notes
Debt instrument, par value	286,200,000		350,000,000
December 2025 Notes | Unsecured Notes
Debt instrument, par value	150,000,000		150,000,000
May 2024 Notes | Unsecured Notes
Debt instrument, par value			450,000,000
Control investments
Investment, cost	1,484,861,000	[1],[3]	1,435,131,000	[2],[4]
Affiliate investments
Investment, cost	679,571,000	[1],[5]	575,894,000	[2],[6]
Non‑Control/Non‑Affiliate investments
Investment, cost	$ 1,949,642,000	[1],[7]	$ 1,714,935,000	[2],[8]
[1] Principal is net of repayments. Cost is net of repayments and accumulated unearned income. Negative cost is the result of the capitalized discount being greater than the principal amount outstanding on the loan. Principal is net of repayments. Cost is net of repayments and accumulated unearned income. Negative cost is the result of the capitalized discount being greater than the principal amount outstanding on the loan. Control investments are defined by the 1940 Act as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained. Control investments are defined by the 1940 Act as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained. Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments. Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments. Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments. Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
INVESTMENT INCOME:
Interest, fee and dividend income	$ 132,154	$ 127,583	$ 263,759	$ 247,838
EXPENSES:
Interest	(29,161)	(26,754)	(55,937)	(51,752)
Compensation	(11,322)	(12,188)	(23,581)	(23,300)
General and administrative	(5,375)	(4,514)	(9,595)	(8,591)
Share‑based compensation	(4,883)	(4,087)	(8,986)	(8,187)
Expenses allocated to the External Investment Manager	5,887	5,688	11,446	10,686
Total expenses	(44,854)	(41,855)	(86,653)	(81,144)
NET INVESTMENT INCOME	87,300	85,728	177,106	166,694
NET REALIZED GAIN (LOSS):
Total net realized gain (loss)	3,414	(75,506)	(8,954)	(103,886)
NET UNREALIZED APPRECIATION (DEPRECIATION):
Total net unrealized appreciation	23,044	104,941	63,693	140,059
INCOME TAXES:
Federal and state income, excise and other taxes	(1,597)	(1,671)	(3,728)	(3,407)
Deferred taxes	(9,473)	(6,976)	(18,282)	(13,353)
Income tax provision	(11,070)	(8,647)	(22,010)	(16,760)
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS	$ 102,688	$ 106,516	$ 209,835	$ 186,107
NET INVESTMENT INCOME PER SHARE— BASIC (in dollars per share)	$ 1.01	$ 1.06	$ 2.07	$ 2.08
NET INVESTMENT INCOME PER SHARE— DILUTED (in dollars per share)	1.01	1.06	2.07	2.08
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS PER SHARE—BASIC (in dollars per share)	1.19	1.32	2.45	2.32
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS PER SHARE—DILUTED (in dollars per share)	$ 1.19	$ 1.32	$ 2.45	$ 2.32
WEIGHTED-AVERAGE SHARES OUTSTANDING—BASIC (in shares)	86,194,092	80,807,861	85,666,311	80,190,630
WEIGHTED-AVERAGE SHARES OUTSTANDING—DILUTED (in shares)	86,194,092	80,807,861	85,666,311	80,190,630
Control investments
INVESTMENT INCOME:
Interest, fee and dividend income	$ 51,318	$ 47,979	$ 102,437	$ 96,841
NET REALIZED GAIN (LOSS):
Total net realized gain (loss)	(361)	(48,111)	(352)	(51,077)
NET UNREALIZED APPRECIATION (DEPRECIATION):
Total net unrealized appreciation	5,589	75,779	37,659	92,940
Affiliate investments
INVESTMENT INCOME:
Interest, fee and dividend income	23,201	20,999	40,928	38,455
NET REALIZED GAIN (LOSS):
Total net realized gain (loss)	7,863	9,997	753	(16,267)
NET UNREALIZED APPRECIATION (DEPRECIATION):
Total net unrealized appreciation	9,502	(11,469)	15,428	21,672
Non‑Control/Non‑Affiliate investments
INVESTMENT INCOME:
Interest, fee and dividend income	57,635	58,605	120,394	112,542
NET REALIZED GAIN (LOSS):
Total net realized gain (loss)	(4,088)	(37,392)	(9,355)	(36,542)
NET UNREALIZED APPRECIATION (DEPRECIATION):
Total net unrealized appreciation	$ 7,953	$ 40,631	$ 10,606	$ 25,447

Consolidated Statements of Chan

Consolidated Statements of Changes in Net Assets - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period (in shares)		84,830,679			84,830,679
Balance at beginning of period	$ 2,515,970	$ 2,477,399	$ 2,172,922	$ 2,108,586	$ 2,477,399	$ 2,108,586
Public offering of common stock, net of offering costs	42,217	5,696	43,204	40,896
Share‑based compensation	4,883	4,103	4,087	4,100
Purchase of vested stock for employee payroll tax withholding	(7,322)	(14)	(5,546)	(404)
Dividend reinvestment (in shares)					366,496	374,173
Dividend reinvestment	8,788	8,441	6,880	7,808	$ 17,229	$ 14,688
Amortization of directors’ deferred compensation	106	102	109	121
Issuance of restricted stock, net of forfeited shares	0		0
Dividends to stockholders	(88,374)	(86,904)	(73,224)	(67,777)
Net increase in net assets resulting from operations	$ 102,688	107,147	106,516	79,592	$ 209,835	186,107
Balance at ending of period (in shares)	86,552,506				86,552,506
Balance at ending of period	$ 2,578,956	$ 2,515,970	$ 2,254,948	$ 2,172,922	$ 2,578,956	$ 2,254,948
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period (in shares)	85,163,633	84,833,002	79,794,089	78,506,816	84,833,002	78,506,816
Balance at beginning of period	$ 851	$ 848	$ 797	$ 784	$ 848	$ 784
Public offering of common stock, net of offering costs (in shares)	874,309	128,942	1,096,514	1,058,914
Public offering of common stock, net of offering costs	$ 9	$ 1	$ 11	$ 11
Purchase of vested stock for employee payroll tax withholding (in shares)	(154,751)	(295)	(140,569)	(10,489)
Purchase of vested stock for employee payroll tax withholding	$ (2)		$ (1)
Dividend reinvestment (in shares)	179,511	186,985	174,891	199,282
Dividend reinvestment	$ 2	$ 2	$ 2	$ 2
Issuance of restricted stock, net of forfeited shares (in shares)	489,804	14,999	506,081	39,566
Issuance of restricted stock, net of forfeited shares	$ 5		$ 5
Balance at ending of period (in shares)	86,552,506	85,163,633	81,431,006	79,794,089	86,552,506	81,431,006
Balance at ending of period	$ 865	$ 851	$ 814	$ 797	$ 865	$ 814
Additional Paid-In Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	2,289,042	2,270,549	2,083,175	2,030,531	2,270,549	2,030,531
Public offering of common stock, net of offering costs	42,208	5,695	43,193	40,885
Share‑based compensation	4,883	4,103	4,087	4,100
Purchase of vested stock for employee payroll tax withholding	(7,320)	(14)	(5,545)	(404)
Dividend reinvestment	8,786	8,439	6,878	7,806
Amortization of directors’ deferred compensation	106	102	109	121
Issuance of restricted stock, net of forfeited shares	(5)		(5)
Dividends to stockholders	179	168	149	136
Balance at ending of period	2,337,879	2,289,042	2,132,041	2,083,175	2,337,879	2,132,041
Total Undistributed (Overdistributed) Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	226,077	206,002	88,950	77,271	206,002	77,271
Dividends to stockholders	(88,553)	(87,072)	(73,373)	(67,913)
Net increase in net assets resulting from operations	102,688	107,147	106,516	79,592
Balance at ending of period	$ 240,212	$ 226,077	$ 122,093	$ 88,950	$ 240,212	$ 122,093

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES
Net increase in net assets resulting from operations	$ 102,688	$ 107,147	$ 106,516	$ 79,592	$ 209,835	$ 186,107
Adjustments to reconcile net increase in net assets resulting from operations to net cash provided by (used in) operating activities:
Investments in portfolio companies					(915,212)	(395,305)
Proceeds from sales and repayments of debt investments in portfolio companies					442,596	291,557
Proceeds from sales and return of capital of equity investments in portfolio companies					29,724	31,057
Net unrealized appreciation	(23,044)		(104,941)		(63,693)	(140,059)
Net realized loss	(3,414)		75,506		8,954	103,886
Accretion of unearned income					(10,560)	(9,900)
Payment-in-kind interest					(9,116)	(5,219)
Cumulative dividends					(1,026)	(717)
Share-based compensation expense					8,986	8,187
Amortization of deferred financing costs					2,294	1,582
Deferred tax provision	9,473		6,976		18,282	13,353
Changes in other assets and liabilities:
Interest and dividend receivable and other assets					(27,282)	(34,644)
Interest payable					8,798	(1,225)
Accounts payable and other liabilities					(10,399)	(3,360)
Deferred fees and other					3,268	2,382
Net cash provided by (used in) operating activities					(304,551)	47,682
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from public offering of common stock, net of offering costs					47,913	84,100
Dividends paid					(157,212)	(125,260)
Proceeds from Credit Facilities					1,395,000	243,000
Repayments on Credit Facilities					(1,130,000)	(270,000)
Debt issuance costs, net					(9,625)	(1,807)
Purchases of vested stock for employee payroll tax withholding					(7,336)	(5,950)
Net cash provided by (used in) financing activities					274,940	(25,917)
Net increase (decrease) in cash and cash equivalents					(29,611)	21,765
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD		$ 60,083		$ 49,121	60,083	49,121	$ 49,121
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 30,472		$ 70,886		30,472	70,886	$ 60,083
Supplemental cash flow disclosures:
Interest paid					44,694	51,333
Taxes paid					6,425	5,909
Non-cash financing activities:
Value of shares issued pursuant to the DRIP					17,229	14,688
December 2025 Notes
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from debt					0	50,000
March 2029 Notes
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from debt					350,000	0
June 2027 Notes
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from debt					300,000	0
SBIC Debentures
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from debt					0	16,000
Repayments of SBIC debentures					(63,800)	(16,000)
May 2024 Notes
CASH FLOWS FROM FINANCING ACTIVITIES
Redemption of May 2024 Notes					$ (450,000)	$ 0

Consolidated Schedule of Invest

Consolidated Schedule of Investments - USD ($) $ in Thousands		Jun. 30, 2024		Dec. 31, 2023		Jun. 30, 2023	Dec. 31, 2022
Schedule of Investments [Line Items]
Cost		$ 4,114,074	[1]	$ 3,725,960	[2]
Fair value		$ 4,737,511	[3]	$ 4,286,271	[4]
Investment owned, percent of net assets (as a percent)		183.50%		173%
Analytical Systems Keco Holdings, LLC
Schedule of Investments [Line Items]
Cost		$ 10,086		$ 10,246
Fair value		9,763		9,163
ASC Interests, LLC
Schedule of Investments [Line Items]
Cost		3,728		3,727
Fair value		2,304		2,363
ATS Workholding, LLC
Schedule of Investments [Line Items]
Cost		8,816	[5]	8,647	[6]
Fair value		499	[5]	801	[6]
Barfly Ventures, LLC
Schedule of Investments [Line Items]
Cost		2,295	[5]	2,295	[6]
Fair value		5,431	[5]	4,851	[6]
Batjer TopCo, LLC
Schedule of Investments [Line Items]
Cost		15,328		14,867
Fair value		$ 16,953		$ 16,995
Bolder Panther Group, LLC
Schedule of Investments [Line Items]
Spread (as a percent)		8%		8%
Cost		$ 116,385		$ 110,078
Fair value		137,546		127,576
Brewer Crane Holdings, LLC
Schedule of Investments [Line Items]
Cost		9,544		9,778
Fair value		10,564		11,118
Bridge Capital Solutions Corporation
Schedule of Investments [Line Items]
Cost		12,945		12,945
Fair value		15,043		15,103
California Splendor Holdings LLC
Schedule of Investments [Line Items]
Cost		49,211		43,341
Fair value		53,743		47,951
Centre Technologies Holdings, LLC
Schedule of Investments [Line Items]
Cost		26,361		23,634
Fair value		31,962		28,614
Chamberlin Holding LLC
Schedule of Investments [Line Items]
Cost		28,681		28,635
Fair value		48,800		47,800
Charps, LLC
Schedule of Investments [Line Items]
Cost		6,885		6,641
Fair value		21,274		21,384
Clad-Rex Steel, LLC
Schedule of Investments [Line Items]
Cost		16,712		17,353
Fair value		15,946		15,755
Cody Pools, Inc.
Schedule of Investments [Line Items]
Cost		49,077		50,348
Fair value		115,281		114,543
Colonial Electric Company LLC
Schedule of Investments [Line Items]
Cost		25,753		30,586
Fair value		29,880		31,707
CompareNetworks Topco, LLC
Schedule of Investments [Line Items]
Cost		5,072		5,429
Fair value		16,027		17,904
Compass Systems & Sales, LLC
Schedule of Investments [Line Items]
Cost		26,089		24,488
Fair value		26,585		24,488
Cybermedia Technologies, LLC
Schedule of Investments [Line Items]
Cost		42,449		43,389
Fair value		43,469		43,389
Datacom, LLC
Schedule of Investments [Line Items]
Cost		10,889		11,130
Fair value		7,993		8,104
Digital Products Holdings LLC
Schedule of Investments [Line Items]
Cost		22,839		24,259
Fair value		23,106		24,525
Direct Marketing Solutions, Inc.
Schedule of Investments [Line Items]
Cost		33,014		35,031
Fair value		44,323		47,516
Elgin AcquireCo, LLC
Schedule of Investments [Line Items]
Cost		31,692		32,161
Fair value		31,888		32,637
Gamber-Johnson Holdings, LLC
Schedule of Investments [Line Items]
Cost		66,765		71,505
Fair value		155,828		150,788
Garreco, LLC
Schedule of Investments [Line Items]
Cost		1,200		4,288
Fair value		1,580		4,668
GRT Rubber Technologies LLC
Schedule of Investments [Line Items]
Cost		56,585		55,819
Fair value		88,079		87,333
Gulf Publishing Holdings, LLC
Schedule of Investments [Line Items]
Cost		11,681		11,681
Fair value		1,948		4,744
Harris Preston Fund Investments
Schedule of Investments [Line Items]
Cost		4,034	[7],[8]	3,593	[9],[10]
Fair value		9,806	[7],[8]	6,365	[9],[10]
IG Investor, LLC
Schedule of Investments [Line Items]
Cost		50,465		51,299
Fair value		50,465		51,299
Jensen Jewelers of Idaho, LLC
Schedule of Investments [Line Items]
Cost		2,611		2,809
Fair value		14,130		14,418
JorVet Holdings, LLC
Schedule of Investments [Line Items]
Cost		35,607		36,224
Fair value		35,607		36,224
KBK Industries, LLC
Schedule of Investments [Line Items]
Cost		5,051		5,445
Fair value		29,120		27,470
Kickhaefer Manufacturing Company, LLC
Schedule of Investments [Line Items]
Cost		34,562		36,811
Fair value		35,750		35,999
Metalforming Holdings, LLC
Schedule of Investments [Line Items]
Cost		29,961		31,195
Fair value		31,730		31,158
MH Corbin Holding LLC
Schedule of Investments [Line Items]
Cost		15,640		15,800
Fair value		5,192		5,352
MS Private Loan Fund I, LP
Schedule of Investments [Line Items]
Cost		21,250	[7],[8]	14,250	[9],[10]
Fair value		21,469	[7],[8]	14,527	[9],[10]
MS Private Loan Fund II, LP
Schedule of Investments [Line Items]
Cost		53,133	[7],[8]	24,928	[9],[10]
Fair value		53,218	[7],[8]	24,928	[9],[10]
Mystic Logistics Holdings, LLC
Schedule of Investments [Line Items]
Cost		8,447		8,466
Fair value		31,846		32,136
Nello Industries Investco, LLC
Schedule of Investments [Line Items]
Cost		47,622
Fair value		47,622
NexRev LLC
Schedule of Investments [Line Items]
Cost		19,590		17,964
Fair value		19,621		16,101
NRP Jones, LLC
Schedule of Investments [Line Items]
Cost		5,797		5,797
Fair value		3,519		3,599
NuStep, LLC
Schedule of Investments [Line Items]
Cost		34,294		34,288
Fair value		37,382		36,416
OMi Topco, LLC
Schedule of Investments [Line Items]
Cost		13,028		13,762
Fair value		60,280		49,130
Orttech Holdings, LLC
Schedule of Investments [Line Items]
Cost		31,868		31,925
Fair value		37,020		39,090
Pearl Meyer Topco LLC
Schedule of Investments [Line Items]
Cost		83,675		64,054
Fair value		124,240		95,271
Pinnacle TopCo, LLC
Schedule of Investments [Line Items]
Cost		42,895		43,323
Fair value		45,685		43,323
PPL RVs, Inc.
Schedule of Investments [Line Items]
Cost		21,254		22,078
Fair value		35,405		37,225
Principle Environmental, LLC
Schedule of Investments [Line Items]
Cost		12,750		12,738
Fair value		17,151		17,089
Robbins Bros. Jewelry, Inc.
Schedule of Investments [Line Items]
Cost		44,525		44,953
Fair value		17,364		30,772
Tedder Industries, LLC
Schedule of Investments [Line Items]
Cost		27,510		27,510
Fair value		6,383		15,988
Televerde, LLC
Schedule of Investments [Line Items]
Cost		2,008		2,008
Fair value		4,363		6,528
Trantech Radiator Topco, LLC
Schedule of Investments [Line Items]
Cost		12,496		12,565
Fair value		17,690		20,660
Volusion, LLC
Schedule of Investments [Line Items]
Cost		25,205		27,322
Fair value		9,100		9,350
VVS Holdco LLC
Schedule of Investments [Line Items]
Cost		39,149		40,275
Fair value		39,149		40,275
Ziegler’s NYPD, LLC
Schedule of Investments [Line Items]
Cost		7,634		7,634
Fair value		3,105		3,475
AAC Holdings, Inc.
Schedule of Investments [Line Items]
Cost		19,515	[11]	17,537	[12]
Fair value		16,246	[11]	14,313	[12]
Boccella Precast Products LLC
Schedule of Investments [Line Items]
Cost		2,576		2,576
Fair value		575		2,310
Buca C, LLC
Schedule of Investments [Line Items]
Cost		22,180		21,750
Fair value		12,573		12,144
Career Team Holdings, LLC
Schedule of Investments [Line Items]
Cost		25,131		25,287
Fair value		25,131		25,287
DMA Industries, LLC
Schedule of Investments [Line Items]
Cost		26,279		24,629
Fair value		26,372		26,460
Dos Rios Partners
Schedule of Investments [Line Items]
Cost		8,132	[7],[8]	8,318	[9],[10]
Fair value		11,033	[7],[8]	11,074	[9],[10]
FCC Intermediate Holdco, LLC (Supplycore)
Schedule of Investments [Line Items]
Cost		32,611
Fair value		32,611
Freeport Financial Funds
Schedule of Investments [Line Items]
Cost		5,631	[7],[8]	7,019	[9],[10]
Fair value		5,252	[7],[8]	6,716	[9],[10]
GFG Group, LLC
Schedule of Investments [Line Items]
Cost		14,212		14,202
Fair value		19,155		20,805
Gulf Manufacturing, LLC
Schedule of Investments [Line Items]
Cost	[7],[13]	42,560
Fair value	[7],[13]	54,980
Harris Preston Fund Investments
Schedule of Investments [Line Items]
Cost		10,601	[7],[8]	8,219	[9],[10]
Fair value		14,548	[7],[8]	10,863	[9],[10]
Hawk Ridge Systems, LLC
Schedule of Investments [Line Items]
Cost		50,260		50,116
Fair value		66,356		65,610
Houston Plating and Coatings, LLC
Schedule of Investments [Line Items]
Cost		5,352		5,352
Fair value		6,150		6,220
Infinity X1 Holdings, LLC
Schedule of Investments [Line Items]
Cost		19,754		21,403
Fair value		19,754		21,403
Integral Energy Services
Schedule of Investments [Line Items]
Cost		14,398	[5]	15,906	[6]
Fair value		13,691	[5]	14,351	[6]
Iron-Main Investments, LLC
Schedule of Investments [Line Items]
Cost		47,272		48,885
Fair value		47,196		48,809
ITA Holdings Group, LLC
Schedule of Investments [Line Items]
Cost		11,193		10,464
Fair value		11,762		10,464
Johnson Downie Opco, LLC
Schedule of Investments [Line Items]
Cost		25,015		27,683
Fair value		34,577		33,827
Nebraska Vet AcquireCo, LLC
Schedule of Investments [Line Items]
Cost		70,091		43,116
Fair value		82,860		51,314
OnAsset Intelligence, Inc.
Schedule of Investments [Line Items]
Cost		12,683		12,683
Fair value		2,200		3,172
Oneliance, LLC
Schedule of Investments [Line Items]
Cost		6,306		6,539
Fair value		$ 6,850		$ 6,478
SI East, LLC
Schedule of Investments [Line Items]
Total Rate		11.75%		11.25%
Cost		$ 71,364		$ 56,928
Fair value		87,601		74,831
Slick Innovations, LLC
Schedule of Investments [Line Items]
Cost		17,900		11,801
Fair value		19,960		13,750
Student Resource Center, LLC
Schedule of Investments [Line Items]
Cost		4,884	[5]	4,884	[6]
Fair value		1,644	[5]	3,190	[6]
Superior Rigging & Erecting Co.
Schedule of Investments [Line Items]
Cost		4,500		24,927
Fair value		6,430		26,367
The Affiliati Network, LLC
Schedule of Investments [Line Items]
Cost		12,918		14,197
Fair value		12,789		14,069
UniTek Global Services, Inc.
Schedule of Investments [Line Items]
Cost		19,410	[11]	18,942	[12]
Fair value		12,711	[11]	12,328	[12]
Universal Wellhead Services Holdings, LLC
Schedule of Investments [Line Items]
Cost		5,032	[5]	5,032	[6]
Fair value		0	[5]	150	[6]
Urgent DSO LLC
Schedule of Investments [Line Items]
Cost		12,854
Fair value		12,854
World Micro Holdings, LLC
Schedule of Investments [Line Items]
Cost		15,885		15,873
Fair value		15,885		15,873
AB Centers Acquisition Corporation
Schedule of Investments [Line Items]
Cost		24,617	[5]	22,440	[6]
Fair value		25,245	[5]	23,110	[6]
Acumera, Inc.
Schedule of Investments [Line Items]
Cost		24,242	[5]	24,524	[6]
Fair value		24,591	[5]	24,904	[6]
Adams Publishing Group, LLC
Schedule of Investments [Line Items]
Cost		27,880	[5]	29,009	[6]
Fair value		26,835	[5]	28,468	[6]
American Health Staffing Group, Inc.
Schedule of Investments [Line Items]
Cost		6,479	[5]	6,504	[6]
Fair value		6,511	[5]	6,542	[6]
American Nuts, LLC
Schedule of Investments [Line Items]
Cost		33,031	[5]	31,640	[6]
Fair value		24,465	[5]	23,268	[6]
American Teleconferencing Services, Ltd.
Schedule of Investments [Line Items]
Cost		16,746	[11]	16,686	[12]
Fair value		450	[11]	781	[12]
ArborWorks, LLC
Schedule of Investments [Line Items]
Cost		25,703	[5]	23,350	[6]
Fair value		23,961	[5]	23,116	[6]
ATS Operating, LLC
Schedule of Investments [Line Items]
Cost		14,796	[5]	14,400	[6]
Fair value		14,796	[5]	14,350	[6]
AVEX Aviation Holdings, LLC
Schedule of Investments [Line Items]
Cost		24,559	[5]	24,661	[6]
Fair value		25,165	[5]	24,934	[6]
Berry Aviation, Inc.
Schedule of Investments [Line Items]
Cost		286	[5]	0	[6]
Fair value		998	[5]	2,760	[6]
Bettercloud, Inc.
Schedule of Investments [Line Items]
Cost		29,934	[5]	28,944	[6]
Fair value		28,825	[5]	27,488	[6]
Bluestem Brands, Inc.
Schedule of Investments [Line Items]
Cost		7,424	[11]	5,998	[12]
Fair value		6,341	[11]	5,883	[12]
Bond Brand Loyalty ULC
Schedule of Investments [Line Items]
Cost		13,067	[5],[7],[13]	13,134	[6],[9],[14]
Fair value		13,192	[5],[7],[13]	13,285	[6],[9],[14]
BP Loenbro Holdings Inc.
Schedule of Investments [Line Items]
Cost	[5]	29,926
Fair value	[5]	30,181
Brainworks Software, LLC
Schedule of Investments [Line Items]
Cost		7,817	[5]	7,817	[6]
Fair value		1,511	[5]	1,836	[6]
Brightwood Capital Fund Investments
Schedule of Investments [Line Items]
Cost		12,670	[7],[8]	12,877	[9],[10]
Fair value		10,633	[7],[8]	10,886	[9],[10]
Burning Glass Intermediate Holding Company, Inc.
Schedule of Investments [Line Items]
Cost		19,668	[5]	19,900	[6]
Fair value		19,885	[5]	20,146	[6]
CAI Software LLC
Schedule of Investments [Line Items]
Cost		2,142		1,789
Fair value		2,227		1,789
CaseWorthy, Inc.
Schedule of Investments [Line Items]
Cost		246	[5]	14,171	[6]
Fair value		490	[5]	$ 14,273	[6]
Channel Partners Intermediateco, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				7%
Cost		47,260	[5]	$ 44,769	[6]
Fair value		45,154	[5]	$ 43,690	[6]
Computer Data Source, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				8%
Cost		23,761	[5]	$ 23,067	[6]
Fair value		23,668	[5]	22,605	[6]
Coregistics Buyer LLC
Schedule of Investments [Line Items]
Cost	[5],[13]	42,257
Fair value	[5],[13]	42,257
CQ Fluency, LLC
Schedule of Investments [Line Items]
Cost		10,715	[5]	10,788	[6]
Fair value		10,887	[5]	10,788	[6]
Creative Foam Corporation
Schedule of Investments [Line Items]
Cost	[5]	105,206
Fair value	[5]	105,206
DTE Enterprises, LLC
Schedule of Investments [Line Items]
Cost		2,092	[5]	2,060	[6]
Fair value		855	[5]	1,544	[6]
Dynamic Communities, LLC
Schedule of Investments [Line Items]
Cost		4,172	[5]	3,920	[6]
Fair value		4,084	[5]	3,831	[6]
Eastern Wholesale Fence LLC
Schedule of Investments [Line Items]
Cost		27,584	[5]	27,882	[6]
Fair value		26,476	[5]	26,994	[6]
EnCap Energy Fund Investments
Schedule of Investments [Line Items]
Cost		29,750	[7],[8]	25,431	[9],[10]
Fair value		19,846	[7],[8]	15,864	[9],[10]
Engineering Research & Consulting, LLC
Schedule of Investments [Line Items]
Cost		16,143	[5]	15,864	[6]
Fair value		16,155	[5]	16,134	[6]
Escalent, Inc.
Schedule of Investments [Line Items]
Cost		26,186	[5]	26,248	[6]
Fair value		26,929	[5]	27,008	[6]
Event Holdco, LLC
Schedule of Investments [Line Items]
Cost		49,428	[5]	47,575	[6]
Fair value		49,404	[5]	46,999	[6]
Fuse, LLC
Schedule of Investments [Line Items]
Cost		2,066	[11]	2,066	[12]
Fair value		1,076	[11]	1,320	[12]
Garyline, LLC
Schedule of Investments [Line Items]
Cost		34,764	[5]	31,979	[6]
Fair value		35,800	[5]	$ 31,979	[6]
GS HVAM Intermediate, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				6.50%
Cost		11,681	[5]	$ 13,314	[6]
Fair value		11,727	[5]	$ 13,339	[6]
GULF PACIFIC ACQUISITION, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				5.75%
Cost		4,524	[5]	$ 4,282	[6]
Fair value		4,561	[5]	4,370	[6]
HDC/HW Intermediate Holdings
Schedule of Investments [Line Items]
Cost		2,977	[5]	4,121	[6]
Fair value		2,902	[5]	3,742	[6]
HEADLANDS OP-CO LLC
Schedule of Investments [Line Items]
Cost		30,831	[5]	22,958	[6]
Fair value		31,208	[5]	23,307	[6]
IG Parent Corporation
Schedule of Investments [Line Items]
Cost		14,926	[11]	14,173	[12]
Fair value		15,082	[11]	$ 14,352	[12]
Imaging Business Machines, L.L.C.
Schedule of Investments [Line Items]
Spread (as a percent)				7%
Cost		22,059	[5]	$ 22,883	[6]
Fair value		22,604	[5]	23,318	[6]
Insight Borrower Corporation
Schedule of Investments [Line Items]
Cost		14,515	[5]	14,538	[6]
Fair value		14,038	[5]	$ 14,787	[6]
Inspire Aesthetics Management, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				8%
Cost		11,191	[5]	$ 11,212	[6]
Fair value		10,139	[5]	$ 11,080	[6]
Interface Security Systems, L.L.C
Schedule of Investments [Line Items]
Spread (as a percent)				10%
Cost		9,159	[5]	$ 9,072	[6]
Fair value		1,866	[5]	2,212	[6]
Invincible Boat Company, LLC.
Schedule of Investments [Line Items]
Cost		16,765	[5]	17,263	[6]
Fair value		16,515	[5]	17,024	[6]
Isagenix International, LLC
Schedule of Investments [Line Items]
Cost		2,784	[11]	2,374	[12]
Fair value		2,655	[11]	$ 2,301	[12]
Island Pump and Tank, LLC
Schedule of Investments [Line Items]
Cost	[5]	5,100
Fair value	[5]	5,100
Jackmont Hospitality, Inc.
Schedule of Investments [Line Items]
Spread (as a percent)				7%
Cost		3,267	[5]	$ 2,907	[6]
Fair value		4,036	[5]	3,899	[6]
JDC Power Services, LLC
Schedule of Investments [Line Items]
Cost	[5]	51,338
Fair value	[5]	51,338
Joerns Healthcare, LLC
Schedule of Investments [Line Items]
Cost		10,029	[11]	10,857	[12]
Fair value		3,375	[11]	$ 2,354	[12]
JTI Electrical & Mechanical, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				6%
Cost		48,422	[5]	$ 40,282	[6]
Fair value		46,349	[5]	40,847	[6]
KMS, LLC
Schedule of Investments [Line Items]
Cost		8,342	[5]	8,367	[6]
Fair value		7,942	[5]	7,725	[6]
LL Management, Inc.
Schedule of Investments [Line Items]
Cost		29,211	[5]	27,678	[6]
Fair value		29,533	[5]	27,759	[6]
Mako Steel, LP
Schedule of Investments [Line Items]
Cost		18,988	[5]	14,886	[6]
Fair value		19,226	[5]	15,049	[6]
Microbe Formulas, LLC
Schedule of Investments [Line Items]
Cost		21,126	[5]	21,804	[6]
Fair value		21,403	[5]	22,117	[6]
Mini Melts of America, LLC
Schedule of Investments [Line Items]
Cost		12,430	[5]	10,047	[6]
Fair value		12,708	[5]	10,047	[6]
MonitorUS Holding, LLC
Schedule of Investments [Line Items]
Cost		32,643	[5],[7],[13]	31,783	[6],[9],[14]
Fair value		33,365	[5],[7],[13]	32,993	[6],[9],[14]
NinjaTrader, LLC
Schedule of Investments [Line Items]
Cost		28,312	[5]	27,335	[6]
Fair value		28,598	[5]	27,681	[6]
Obra Capital, Inc.
Schedule of Investments [Line Items]
Cost	[5]	25,571
Fair value	[5]	25,571
Power System Solutions
Schedule of Investments [Line Items]
Cost		25,055	[5]	19,000	[6]
Fair value		26,548	[5]	19,414	[6]
PrimeFlight Aviation Services
Schedule of Investments [Line Items]
Cost		10,009	[5]	8,488	[6]
Fair value		10,244	[5]	$ 8,720	[6]
PTL US Bidco, Inc
Schedule of Investments [Line Items]
Spread (as a percent)				7.25%
Cost		26,240	[5],[7],[13]	$ 28,969	[6],[9],[14]
Fair value		26,562	[5],[7],[13]	29,261	[6],[9],[14]
Purge Rite, LLC
Schedule of Investments [Line Items]
Cost		12,874	[5]	12,844	[6]
Fair value		13,340	[5]	$ 12,844	[6]
RA Outdoors LLC
Schedule of Investments [Line Items]
Spread (as a percent)				6.75%
Cost		14,572	[5]	$ 14,096	[6]
Fair value		14,008	[5]	$ 13,284	[6]
Richardson Sales Solutions
Schedule of Investments [Line Items]
Spread (as a percent)				6.50%
Cost		43,490	[5]	$ 41,945	[6]
Fair value		44,665	[5]	42,485	[6]
Roof Opco, LLC
Schedule of Investments [Line Items]
Cost		6,639	[5]	6,648	[6]
Fair value		6,696	[5]	6,580	[6]
Rug Doctor, LLC.
Schedule of Investments [Line Items]
Cost		13,555	[5]	13,808	[6]
Fair value		13,615	[5]	13,830	[6]
South Coast Terminals Holdings, LLC
Schedule of Investments [Line Items]
Cost		33,742	[5]	35,730	[6]
Fair value		34,040	[5]	36,116	[6]
SPAU Holdings, LLC
Schedule of Investments [Line Items]
Cost		17,592	[5]	16,100	[6]
Fair value		17,791	[5]	16,228	[6]
Stellant Systems, Inc.
Schedule of Investments [Line Items]
Cost		16,791	[11]	16,192	[12]
Fair value		17,141	[11]	16,504	[12]
Titan Meter Midco Corp.
Schedule of Investments [Line Items]
Cost	[5]	34,084
Fair value	[5]	34,518
U.S. TelePacific Corp.
Schedule of Investments [Line Items]
Cost		3,648	[11]	3,605	[12]
Fair value		4,025	[11]	3,333	[12]
Veregy Consolidated, Inc.
Schedule of Investments [Line Items]
Cost		17,227	[11]	16,787	[12]
Fair value		17,498	[11]	15,367	[12]
Vitesse Systems
Schedule of Investments [Line Items]
Cost	[5]	46,624
Fair value	[5]	47,372
Wall Street Prep, Inc.
Schedule of Investments [Line Items]
Cost		3,782	[5]	4,081	[6]
Fair value		4,291	[5]	$ 4,450	[6]
Watterson Brands, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				6%
Cost		30,786	[5]	$ 30,510	[6]
Fair value		31,054	[5]	$ 30,832	[6]
West Star Aviation Acquisition, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				6%
Cost		19,538	[5]	$ 19,617	[6]
Fair value		22,854	[5]	$ 21,356	[6]
Winter Services LLC
Schedule of Investments [Line Items]
Spread (as a percent)				7%
Cost		16,673	[5]	$ 13,427	[6]
Fair value		16,720	[5]	13,589	[6]
Xenon Arc, Inc.
Schedule of Investments [Line Items]
Cost		60,840	[5]	60,886	[6]
Fair value		61,570	[5]	$ 61,885	[6]
Zips Car Wash, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				7.25%
Cost		21,694	[5]	$ 21,573	[6]
Fair value		20,797	[5]	20,447	[6]
ZRG Partners, LLC
Schedule of Investments [Line Items]
Cost	[5]	52,673
Fair value	[5]	52,673
Classic H&G Holdings, LLC
Schedule of Investments [Line Items]
Cost				29,544
Fair value				39,834
AMEREQUIP LLC
Schedule of Investments [Line Items]
Cost	[6]			29,754
Fair value	[6]			$ 30,434
Industrial Services Acquisition, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				6.75%
Cost	[6]			$ 21,349
Fair value	[6]			21,422
Infolinks Media Buyco, LLC
Schedule of Investments [Line Items]
Cost	[6]			9,143
Fair value	[6]			9,256
MB2 Dental Solutions, LLC
Schedule of Investments [Line Items]
Cost	[12]			17,851
Fair value	[12]			$ 17,988
Paragon Healthcare, Inc.
Schedule of Investments [Line Items]
Spread (as a percent)				5.75%
Cost	[6]			$ 21,321
Fair value	[6]			21,676
RTIC Subsidiary Holdings, LLC
Schedule of Investments [Line Items]
Cost	[6]			15,368
Fair value	[6]			15,044
USA DeBusk LLC
Schedule of Investments [Line Items]
Cost	[6]			36,280
Fair value	[6]			36,807
Money Market Funds
Schedule of Investments [Line Items]
Cost		5,885	[1]	15,224	[2],[15]
Fair value		5,885	[3]	15,224	[4],[15]
Control investments
Schedule of Investments [Line Items]
Cost		1,484,861	[1],[16]	1,435,131	[2],[17]
Fair value		$ 2,075,429	[3],[16]	$ 2,006,698	[4],[17]	$ 1,883,699	$ 1,703,172
Investment owned, percent of net assets (as a percent)		80.40%		81%
Affiliate investments
Schedule of Investments [Line Items]
Cost		$ 679,571	[1],[18]	$ 575,894	[2],[19]
Fair value		$ 752,764	[3],[18]	$ 615,002	[4],[19]	563,125	618,359
Investment owned, percent of net assets (as a percent)		29.20%		24.80%
Non‑Control/Non‑Affiliate investments
Schedule of Investments [Line Items]
Cost		$ 1,949,642	[1],[20]	$ 1,714,935	[2],[21]
Fair value		$ 1,909,318	[3],[20]	$ 1,664,571	[4],[21]
Investment owned, percent of net assets (as a percent)		74%		67.20%
Investment, Identifier [Axis]: 2717 MH, L.P., LP Interests (2717 GRE-LP, L.P.)
Schedule of Investments [Line Items]
Fair value		$ 441		$ 0
Investment, Identifier [Axis]: 2717 MH, L.P., LP Interests (2717 HPP-MS, L.P.)
Schedule of Investments [Line Items]
Fair value		374		315		315	248
Investment, Identifier [Axis]: 2717 MH, L.P., LP Interests (2717 MH, L.P.)
Schedule of Investments [Line Items]
Fair value		8,991		6,050		6,346	7,552
Investment, Identifier [Axis]: 423 HAR, LP, LP Interests (423 HAR, L.P.)
Schedule of Investments [Line Items]
Fair value		$ 1,048		$ 996		750	0
Investment, Identifier [Axis]: AAC Holdings, Inc., Common Stock
Schedule of Investments [Line Items]
Units (in shares)		654,743	[11]	593,928	[12]
Cost		$ 3,148	[11]	$ 3,148	[12]
Fair value		$ 0	[11]	$ 0	[12]	$ 0	0
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		18%	[11]	18%	[12]	18%
PIK Rate		18%	[11]	18%	[12]	18%
Principal		$ 481	[11]	$ 423	[12]
Cost		477	[11]	419	[12]
Fair value		$ 476	[11]	$ 418	[12]	$ 360	0
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		18%	[11]	18%	[12]	18%
PIK Rate		18%	[11]	18%	[12]	18%
Principal		$ 15,950	[11]	$ 14,053	[12]
Cost		15,890	[11]	13,970	[12]
Fair value		$ 15,770	[11]	$ 13,895	[12]	$ 12,141	11,550
Investment, Identifier [Axis]: AAC Holdings, Inc., Warrants
Schedule of Investments [Line Items]
Units (in shares)		574,598	[11],[22]	554,353	[12],[23]
Cost		$ 0	[11],[22]	$ 0	[12],[23]
Fair value		$ 0	[11],[22]	$ 0	[12],[23]	0	0
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		5%	[5],[24],[25]	5%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(55)	[5],[24],[25]	(62)	[6],[26],[27]
Fair value		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.44%	[5],[25],[28]	11.43%	[6],[27]
Spread (as a percent)		6%	[5],[25],[28]	6%	[6],[27]
Principal		$ 4,162	[5],[25],[28]	$ 1,921	[6],[27]
Cost		4,108	[5],[25],[28]	1,894	[6],[27]
Fair value		$ 4,162	[5],[25],[28]	$ 1,921	[6],[27]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.44%	[5],[25]	11.43%	[6],[27]
Spread (as a percent)		6%	[5],[25]	6%	[6],[27]
Principal		$ 19,717	[5],[25]	$ 19,817	[6],[27]
Cost		19,258	[5],[25]	19,303	[6],[27]
Fair value		$ 19,717	[5],[25]	$ 19,817	[6],[27]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		11.44%	[5],[25]	11.43%	[6],[27]
Spread (as a percent)		6%	[5],[25]	6%	[6],[27]
Principal		$ 1,366	[5],[25]	$ 1,372	[6],[27]
Cost		1,306	[5],[25]	1,305	[6],[27]
Fair value		$ 1,366	[5],[25]	$ 1,372	[6],[27]
Investment, Identifier [Axis]: ADS Tactical, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.25%	[11],[25]	11.22%	[12],[27]
Spread (as a percent)		4.75%	[11],[25]	5.75%	[12],[27]
Principal		$ 6,404	[11],[25]	$ 10,952	[12],[27]
Cost		6,365	[11],[25]	10,856	[12],[27]
Fair value		$ 6,431	[11],[25]	$ 10,860	[12],[27]
Investment, Identifier [Axis]: AFG Capital Group, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Fair value						0	9,400
Investment, Identifier [Axis]: AMEREQUIP LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		235	[5],[29]	235	[6],[30]
Cost		$ 1,844	[5],[29]	$ 1,844	[6],[30]
Fair value		$ 1,920	[5],[29]	$ 2,120	[6],[30]
Investment, Identifier [Axis]: AMEREQUIP LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[26],[27]			7.40%
Principal	[6],[26],[27]			$ 0
Cost	[6],[26],[27]			(108)
Fair value	[6],[26],[27]			$ (108)
Investment, Identifier [Axis]: AMEREQUIP LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[6],[27]			12.76%
Spread (as a percent)	[6],[27]			7.40%
Principal	[6],[27]			$ 28,422
Cost	[6],[27]			28,018
Fair value	[6],[27]			$ 28,422
Investment, Identifier [Axis]: ASC Interests, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		1,500		1,500
Cost		$ 1,500		$ 1,500
Fair value		$ 40		$ 100		$ 510	800
Investment, Identifier [Axis]: ASC Interests, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		178		178
Cost		$ 178		$ 178
Fair value		$ 266		$ 266
Investment, Identifier [Axis]: ASC Interests, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13%		13%		13%
Principal		$ 400		$ 400
Cost		400		400
Fair value		$ 400		$ 400		$ 400	400
Investment, Identifier [Axis]: ASC Interests, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%		13%		13%
Principal		$ 1,650		$ 1,650
Cost		1,650		1,649
Fair value		$ 1,598		$ 1,597		$ 1,597	1,649
Investment, Identifier [Axis]: ATS Operating, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		720,000	[5]	720,000	[6]
Cost		$ 720	[5]	$ 720	[6]
Fair value		$ 720	[5]	$ 670	[6]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.06%	[5],[25],[31]	12.16%	[6],[27]
Spread (as a percent)		6.50%	[5],[25],[31]	6.50%	[6],[27]
Principal		$ 756	[5],[25],[31]	$ 360	[6],[27]
Cost		756	[5],[25],[31]	360	[6],[27]
Fair value		$ 756	[5],[25],[31]	$ 360	[6],[27]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.06%	[5],[25]	11.16%	[6],[27]
Spread (as a percent)		5.50%	[5],[25]	5.50%	[6],[27]
Principal		$ 6,660	[5],[25]	$ 6,660	[6],[27]
Cost		6,660	[5],[25]	6,660	[6],[27]
Fair value		$ 6,660	[5],[25]	$ 6,660	[6],[27]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.06%	[5],[25]	13.16%	[6],[27]
Spread (as a percent)		7.50%	[5],[25]	7.50%	[6],[27]
Principal		$ 6,660	[5],[25]	$ 6,660	[6],[27]
Cost		6,660	[5],[25]	6,660	[6],[27]
Fair value		$ 6,660	[5],[25]	$ 6,660	[6],[27]
Investment, Identifier [Axis]: ATS Workholding, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		3,725,862	[5]	3,725,862	[6]
Cost		$ 3,726	[5]	$ 3,726	[6]
Fair value		$ 0	[5]	$ 0	[6]	$ 0	0
Investment, Identifier [Axis]: ATS Workholding, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		5%	[5],[32]	5%	[6],[33]	5%
Principal		$ 2,257	[5],[32]	$ 2,090	[6],[33]
Cost		2,249	[5],[32]	2,080	[6],[33]
Fair value		$ 214	[5],[32]	$ 328	[6],[33]	$ 483	634
Investment, Identifier [Axis]: ATS Workholding, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		5%	[5],[32]	5%	[6],[33]	5%
Principal		$ 3,015	[5],[32]	$ 3,015	[6],[33]
Cost		2,841	[5],[32]	2,841	[6],[33]
Fair value		$ 285	[5],[32]	$ 473	[6],[33]	$ 719	1,005
Investment, Identifier [Axis]: ATX Networks Corp., Common Stock
Schedule of Investments [Line Items]
Fair value						$ 0	3,270
Investment, Identifier [Axis]: ATX Networks Corp., Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)						7.50%
Fair value						$ 0	6,343
Investment, Identifier [Axis]: ATX Networks Corp., Unsecured Debt
Schedule of Investments [Line Items]
Fair value						0	2,598
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		984	[5],[29]	984	[6],[30]
Cost		$ 965	[5],[29]	$ 965	[6],[30]
Fair value		$ 892	[5],[29]	$ 892	[6],[30]
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7.25%	[5],[24],[25]	7.25%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(105)	[5],[24],[25]	(120)	[6],[26],[27]
Fair value		$ (105)	[5],[24],[25]	$ (38)	[6],[26],[27]
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.74%	[5],[25]	12.76%	[6],[27]
Spread (as a percent)		7.25%	[5],[25]	7.25%	[6],[27]
Principal		$ 24,383	[5],[25]	$ 24,602	[6],[27]
Cost		23,699	[5],[25]	23,816	[6],[27]
Fair value		$ 24,378	[5],[25]	$ 24,080	[6],[27]
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[5],[24],[25]	7.50%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(1)	[5],[24],[25]	(2)	[6],[26],[27]
Fair value		$ (1)	[5],[24],[25]	$ (2)	[6],[26],[27]
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.44%	[5],[25]	12.98%	[6],[27]
Spread (as a percent)		7%	[5],[25]	7.50%	[6],[27]
Principal		$ 24,482	[5],[25]	$ 24,796	[6],[27]
Cost		24,243	[5],[25]	24,526	[6],[27]
Fair value		$ 24,482	[5],[25]	$ 24,796	[6],[27]
Investment, Identifier [Axis]: Acumera, Inc., Warrants
Schedule of Investments [Line Items]
Units (in shares)		17,525	[5],[34]	17,525	[6],[35]
Cost		$ 0	[5],[34]	$ 0	[6],[35]
Fair value		$ 110	[5],[34]	$ 110	[6],[35]
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11%	[5],[25],[36]	11%	[6],[27],[37]
Spread (as a percent)		7%	[5],[25],[36]	7%	[6],[27],[37]
PIK Rate		1%	[5],[25],[36]	1%	[6],[27],[37]
Principal		$ 7,880	[5],[25],[36]	$ 7,841	[6],[27],[37]
Cost		7,880	[5],[25],[36]	7,841	[6],[27],[37]
Fair value		$ 7,582	[5],[25],[36]	$ 7,684	[6],[27],[37]
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11%	[5],[25],[36]	11%	[6],[27],[37]
Spread (as a percent)		7%	[5],[25],[36]	7%	[6],[27],[37]
PIK Rate		1%	[5],[25],[36]	1%	[6],[27],[37]
Principal		$ 20,033	[5],[25],[36]	$ 21,207	[6],[27],[37]
Cost		20,000	[5],[25],[36]	21,168	[6],[27],[37]
Fair value		$ 19,253	[5],[25],[36]	$ 20,784	[6],[27],[37]
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		5%	[5],[24],[25]	5%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(6)	[5],[24],[25]	(8)	[6],[26],[27]
Fair value		$ (6)	[5],[24],[25]	$ (8)	[6],[26],[27]
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.61%	[5],[25]	13.50%	[6],[27]
Spread (as a percent)		6%	[5],[25]	5%	[6],[27]
Principal		$ 6,517	[5],[25]	$ 6,550	[6],[27]
Cost		6,485	[5],[25]	6,512	[6],[27]
Fair value		$ 6,517	[5],[25]	$ 6,550	[6],[27]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.20%	[5],[25]	15.29%	[6],[27]
Spread (as a percent)		9.75%	[5],[25]	9.75%	[6],[27]
PIK Rate		15.20%	[5],[25]	15.29%	[6],[27]
Principal		$ 6,977	[5],[25]	$ 6,462	[6],[27]
Cost		6,938	[5],[25]	6,413	[6],[27]
Fair value		$ 5,787	[5],[25]	$ 5,495	[6],[27]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.20%	[5],[25]	15.29%	[6],[27]
Spread (as a percent)		9.75%	[5],[25]	9.75%	[6],[27]
PIK Rate		15.20%	[5],[25]	15.29%	[6],[27]
Principal		$ 11,351	[5],[25]	$ 10,507	[6],[27]
Cost		11,279	[5],[25]	10,413	[6],[27]
Fair value		$ 9,416	[5],[25]	$ 8,922	[6],[27]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		17.20%	[5],[25],[32]	17.29%	[6],[27],[33]
Spread (as a percent)		11.75%	[5],[25],[32]	11.75%	[6],[27],[33]
PIK Rate		17.20%	[5],[25],[32]	17.29%	[6],[27],[33]
Principal		$ 5,705	[5],[25],[32]	$ 5,705	[6],[27],[33]
Cost		5,645	[5],[25],[32]	5,645	[6],[27],[33]
Fair value		$ 3,526	[5],[25],[32]	$ 3,369	[6],[27],[33]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		17.20%	[5],[25],[32]	17.29%	[6],[27],[33]
Spread (as a percent)		11.75%	[5],[25],[32]	11.75%	[6],[27],[33]
PIK Rate		17.20%	[5],[25],[32]	17.29%	[6],[27],[33]
Principal		$ 9,283	[5],[25],[32]	$ 9,283	[6],[27],[33]
Cost		9,169	[5],[25],[32]	9,169	[6],[27],[33]
Fair value		5,736	[5],[25],[32]	5,482	[6],[27],[33]
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 1
Schedule of Investments [Line Items]
Principal		3,166	[11],[32],[38]	2,980	[12],[33],[39]
Cost		2,989	[11],[32],[38]	2,980	[12],[33],[39]
Fair value		76	[11],[32],[38]	134	[12],[33],[39]
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 2
Schedule of Investments [Line Items]
Principal		15,489	[11],[32],[38]	14,370	[12],[33],[39]
Cost		13,757	[11],[32],[38]	13,706	[12],[33],[39]
Fair value		374	[11],[32],[38]	647	[12],[33],[39]
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Affiliate Investments
Schedule of Investments [Line Items]
Fair value		0		(60,384)		0	14,914
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Control Investments
Schedule of Investments [Line Items]
Fair value		$ 0		$ 60,384		$ 0	(14,914)
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		2,427		2,427
Total Rate						14.13%
Cost		$ 2,427		$ 2,427
Fair value		$ 5,620		4,860		$ 0	0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Total Rate		14.13%
Fair value		$ 0		$ 0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		3,200		3,200
Total Rate		14.13%		14.13%
Cost		$ 3,200		$ 3,200
Fair value		0		0		$ 4,070	3,504
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Fair value		$ 5,620		$ 4,860
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.38%	[25]	15.38%	[27]
Spread (as a percent)		10%	[25]	10%	[27]	10%
Principal		$ 220	[25]	$ 220	[27]
Cost		220	[25]	219	[27]
Fair value		$ 220	[25]	$ 219	[27]	$ (2)	(3)
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.38%	[25]	15.38%	[27]	15.25%
Spread (as a percent)		10%	[25]	10%	[27]	10%
Principal		$ 3,930	[25]	$ 4,125	[27]
Cost		3,923	[25]	4,084	[27]
Fair value		$ 3,923	[25]	$ 4,084	[27]	$ 4,444	4,545
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Warrants
Schedule of Investments [Line Items]
Units (in shares)		420	[22]	420	[23]
Cost		$ 316	[22]	$ 316	[23]
Fair value		$ 0	[22]	$ 0	[23]	0	0
Investment, Identifier [Axis]: ArborWorks, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		3,898	[5]	3,898	[6]
Cost		$ 234	[5]	$ 234	[6]
Fair value		$ 0	[5]	$ 0	[6]
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 1
Schedule of Investments [Line Items]
Units (in shares)		32,507	[5]	32,507	[6]
Cost		$ 14,060	[5]	$ 14,060	[6]
Fair value		$ 12,552	[5]	$ 14,060	[6]
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 2
Schedule of Investments [Line Items]
Units (in shares)		32,507	[5]	32,507	[6]
Cost		$ 0	[5]	$ 0	[6]
Fair value		$ 0	[5]	$ 0	[6]
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15%	[5],[25]	15%	[6]
PIK Rate		15%	[5],[25]	15%	[6]
Principal		$ 3,817	[5],[25]	$ 1,907	[6]
Cost		3,817	[5],[25]	1,907	[6]
Fair value		$ 3,817	[5],[25]	$ 1,907	[6]
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.99%	[5],[25]	12.04%	[6],[27]
Spread (as a percent)		6.50%	[5],[25]	6.50%	[6],[27]
PIK Rate		11.99%	[5],[25]	12.04%	[6],[27]
Principal		$ 7,592	[5],[25]	$ 7,149	[6],[27]
Cost		7,592	[5],[25]	7,149	[6],[27]
Fair value		$ 7,592	[5],[25]	$ 7,149	[6],[27]
Investment, Identifier [Axis]: Archer Systems, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		1,387,832	[5]	1,387,832	[6]
Cost		$ 1,388	[5]	$ 1,388	[6]
Fair value		$ 2,210	[5]	$ 2,230	[6]
Investment, Identifier [Axis]: BBB Tank Services, LLC, Member Units
Schedule of Investments [Line Items]
Fair value						$ 0	0
Investment, Identifier [Axis]: BBB Tank Services, LLC, Preferred Stock (non-voting)
Schedule of Investments [Line Items]
Total Rate						15%
Fair value						$ 0	0
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 1
Schedule of Investments [Line Items]
Total Rate						16.17%
Spread (as a percent)						11%
Fair value						$ 800	800
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 2
Schedule of Investments [Line Items]
Total Rate						16.17%
Spread (as a percent)						11%
Fair value						$ 2,202	2,086
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Common Equity
Schedule of Investments [Line Items]
Units (in shares)	[5]	2,333,333
Cost	[5]	$ 2,333
Fair value	[5]	$ 2,333
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[5],[25]	11.44%
Spread (as a percent)	[5],[25]	6%
Principal	[5],[25]	$ 1,648
Cost	[5],[25]	1,599
Fair value	[5],[25]	$ 1,632
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[5],[24],[25]	6%
Principal	[5],[24],[25]	$ 0
Cost	[5],[24],[25]	(25)
Fair value	[5],[24],[25]	$ (25)
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[5],[25]	11.43%
Spread (as a percent)	[5],[25]	6%
Principal	[5],[25]	$ 26,506
Cost	[5],[25]	26,019
Fair value	[5],[25]	$ 26,241
Investment, Identifier [Axis]: Barfly Ventures, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		37	[5],[29]	37	[6]
Cost		$ 1,584	[5],[29]	$ 1,584	[6]
Fair value		$ 4,720	[5],[29]	$ 4,140	[6]	$ 3,040	3,320
Investment, Identifier [Axis]: Barfly Ventures, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		7%	[5]	7%	[6]	7%
Principal		$ 711	[5]	$ 711	[6]
Cost		711	[5]	711	[6]
Fair value		$ 711	[5]	$ 711	[6]	$ 711	711
Investment, Identifier [Axis]: Batjer TopCo, LLC, Preferred Stock
Schedule of Investments [Line Items]
Units (in shares)		4,073	[29]	4,073	[30]
Cost		$ 4,095	[29]	$ 4,095	[30]
Fair value		$ 5,720	[29]	6,150	[30]	6,150	4,095
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10%
Principal		$ 450		0	[26]
Cost		445		(6)	[26]
Fair value		$ 445		$ 0	[26]	0	(8)
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		10%
Principal		$ 270		$ 270
Cost		270		270
Fair value		$ 270		$ 270		$ 0	0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10%		10%		10%
Principal		$ 10,575		$ 10,575
Cost		10,518		10,508
Fair value		$ 10,518		$ 10,575		$ 10,575	10,933
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		286,109	[5]	122,416	[6],[40]
Cost		$ 286	[5]	$ 0	[6],[40]
Fair value		$ 878	[5]	$ 200	[6],[40]
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		122,416	[5],[41]	1,548,387	[6],[30],[40]
Cost		$ 0	[5],[41]	$ 0	[6],[30],[40]
Fair value		$ 10	[5],[41]	$ 2,560	[6],[30],[40]
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 3
Schedule of Investments [Line Items]
Units (in shares)	[5],[41]	1,548,387
Cost	[5],[41]	$ 0
Fair value	[5],[41]	$ 110
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		10.25%	[5],[24],[25]	7.25%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(55)	[5],[24],[25]	(62)	[6],[26],[27]
Fair value		$ (55)	[5],[24],[25]	$ (62)	[6],[26],[27]
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.60%	[5],[25]	12.64%	[6],[27]
Spread (as a percent)		10.25%	[5],[25]	7.25%	[6],[27]
PIK Rate		9.25%	[5],[25]	6.25%	[6],[27]
Principal		$ 30,342	[5],[25]	$ 29,403	[6],[27]
Cost		29,989	[5],[25]	29,006	[6],[27]
Fair value		$ 28,880	[5],[25]	$ 27,550	[6],[27]
Investment, Identifier [Axis]: Binswanger Enterprises, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		1,050,000	[5]	1,050,000	[6]
Cost		$ 1,050	[5]	$ 1,050	[6]
Fair value		$ 580	[5]	$ 120	[6]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Common Stock
Schedule of Investments [Line Items]
Units (in shares)		723,184	[11]	723,184	[12]
Cost		$ 1	[11]	$ 1	[12]
Fair value		$ 0	[11]	$ 550	[12]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.94%	[11]	16%	[12],[27]
Spread (as a percent)		8.50%	[11]	7.50%	[12],[27]
PIK Rate		12.94%	[11]	15%	[12],[27]
Principal		$ 180	[11]	$ 1,885	[12],[27]
Cost		55	[11]	1,885	[12],[27]
Fair value		$ 164	[11]	$ 1,767	[12],[27]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		16%	[11],[25]	13.96%	[12],[27]
Spread (as a percent)		7.50%	[11],[25]	8.50%	[12],[27]
PIK Rate		15%	[11],[25]	12.96%	[12],[27]
Principal		$ 2,828	[11],[25]	$ 3,676	[12],[27]
Cost		2,828	[11],[25]	3,076	[12],[27]
Fair value		$ 2,588	[11],[25]	$ 3,446	[12],[27]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[25]	13.94%
Spread (as a percent)	[11],[25]	8.50%
PIK Rate	[11],[25]	12.94%
Principal	[11],[25]	$ 3,923
Cost	[11],[25]	3,504
Fair value	[11],[25]	$ 3,589
Investment, Identifier [Axis]: Bluestem Brands, Inc., Warrants
Schedule of Investments [Line Items]
Units (in shares)		163,295	[11],[22]	163,295	[12],[23]
Cost		$ 1,036	[11],[22]	$ 1,036	[12],[23]
Fair value		$ 0	[11],[22]	$ 120	[12],[23]
Investment, Identifier [Axis]: Boccella Precast Products LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		2,160,000	[29]	2,160,000
Cost		$ 2,256	[29]	$ 2,256
Fair value		$ 310	[29]	$ 1,990		$ 2,350	2,970
Investment, Identifier [Axis]: Boccella Precast Products LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10%		10%		10%
Principal		$ 320		$ 320
Cost		320		320
Fair value		$ 265		$ 320		$ 320	320
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Class B Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		140,000	[29]	140,000	[30]
Total Rate		8%	[29]	8%	[30]	8%
Cost		$ 14,000	[29]	$ 14,000	[30]
Fair value		$ 34,710	[29]	$ 31,020	[30]	$ 31,120	31,420
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.43%		14.48%	[27],[42]
Spread (as a percent)		8.05%		9.11%	[27],[42]
Principal	[27],[42]			$ 96,556
Cost	[27],[42]			96,078
Fair value		$ 102,836		96,556	[27],[42]
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Principal	[24]	0
Cost	[24]	0
Fair value		$ 0	[24]			$ 0	0
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.43%	[25],[43]			14.37%
Spread (as a percent)		8.05%	[25],[43]			9.19%
Principal	[25],[43]	$ 102,836
Cost	[25],[43]	102,385
Fair value		102,836	[25],[43]			$ 97,875	99,194
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Fair value		$ 0		$ 0
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		571	[5],[7],[13]	571	[6],[9],[14]
Cost		$ 0	[5],[7],[13]	$ 0	[6],[9],[14]
Fair value		$ 0	[5],[7],[13]	$ 0	[6],[9],[14]
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		571	[5],[7],[13]	571	[6],[9],[14]
Cost		$ 571	[5],[7],[13]	$ 571	[6],[9],[14]
Fair value		$ 500	[5],[7],[13]	$ 500	[6],[9],[14]
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[5],[7],[13],[24],[25]	7%	[6],[9],[14],[26],[27]
Principal		$ 0	[5],[7],[13],[24],[25]	$ 0	[6],[9],[14],[26],[27]
Cost		(22)	[5],[7],[13],[24],[25]	(25)	[6],[9],[14],[26],[27]
Fair value		$ (22)	[5],[7],[13],[24],[25]	$ (25)	[6],[9],[14],[26],[27]
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.45%	[5],[7],[13],[25]	11.54%	[6],[9],[14],[27]
Spread (as a percent)		6%	[5],[7],[13],[25]	6%	[6],[9],[14],[27]
Principal		$ 6,357	[5],[7],[13],[25]	$ 6,405	[6],[9],[14],[27]
Cost		6,259	[5],[7],[13],[25]	6,294	[6],[9],[14],[27]
Fair value		$ 6,357	[5],[7],[13],[25]	$ 6,405	[6],[9],[14],[27]
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.45%	[5],[7],[13],[25]	13.54%	[6],[9],[14],[27]
Spread (as a percent)		8%	[5],[7],[13],[25]	8%	[6],[9],[14],[27]
Principal		$ 6,357	[5],[7],[13],[25]	$ 6,405	[6],[9],[14],[27]
Cost		6,259	[5],[7],[13],[25]	6,294	[6],[9],[14],[27]
Fair value		$ 6,357	[5],[7],[13],[25]	$ 6,405	[6],[9],[14],[27]
Investment, Identifier [Axis]: Brainworks Software, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.75%	[5],[25],[32],[38]	15.75%	[6],[27],[33],[39]
Spread (as a percent)		7.25%	[5],[25],[32],[38]	7.25%	[6],[27],[33],[39]
Principal		$ 761	[5],[25],[32],[38]	$ 761	[6],[27],[33],[39]
Cost		761	[5],[25],[32],[38]	761	[6],[27],[33],[39]
Fair value		$ 761	[5],[25],[32],[38]	$ 761	[6],[27],[33],[39]
Investment, Identifier [Axis]: Brainworks Software, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.75%	[5],[25],[32],[38]	15.75%	[6],[27],[33],[39]
Spread (as a percent)		7.25%	[5],[25],[32],[38]	7.25%	[6],[27],[33],[39]
Principal		$ 7,056	[5],[25],[32],[38]	$ 7,056	[6],[27],[33],[39]
Cost		7,056	[5],[25],[32],[38]	7,056	[6],[27],[33],[39]
Fair value		$ 750	[5],[25],[32],[38]	$ 1,075	[6],[27],[33],[39]
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		2,950	[29]	2,950	[30]
Cost		$ 4,280	[29]	$ 4,280	[30]
Fair value		$ 5,300	[29]	$ 5,620	[30]	$ 6,360	7,080
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.48%	[25]	15.46%	[27]	15.17%
Spread (as a percent)		10%	[25]	10%	[27]	10%
Principal		$ 5,264	[25]	$ 5,498	[27]
Cost		5,264	[25]	5,498	[27]
Fair value		$ 5,264	[25]	$ 5,498	[27]	$ 5,653	5,964
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		17,742	[29],[41]	17,742	[30],[40]
Cost		$ 1,000	[29],[41]	$ 1,000	[30],[40]
Fair value		$ 1,000	[29],[41]	$ 1,000	[30],[40]	$ 1,000	1,000
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13%		13%		13%
Principal		$ 8,813		$ 8,813
Cost		8,813		8,813
Fair value		$ 8,813		$ 8,813		$ 8,813	8,813
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%		13%		13%
Principal		$ 1,000		$ 1,000
Cost		1,000		1,000
Fair value		$ 1,000		$ 1,000		$ 1,000	1,000
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Warrants
Schedule of Investments [Line Items]
Units (in shares)		82	[22]	82	[23]
Cost		$ 2,132	[22]	$ 2,132	[23]
Fair value		4,230	[22]	4,290	[23]
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Warrants 1
Schedule of Investments [Line Items]
Fair value		1,783		1,808		1,874	1,828
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Warrants 2
Schedule of Investments [Line Items]
Fair value		$ 2,447		$ 2,482		$ 2,576	2,512
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund III, LP)
Schedule of Investments [Line Items]
Units (as a percent)		1.59%	[7],[8],[44]	1.55%	[9],[10],[45]
Cost		$ 5,870	[7],[8],[44]	$ 6,527	[9],[10],[45]
Fair value		$ 3,614	[7],[8],[44]	$ 4,080	[9],[10],[45]
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund IV, LP)
Schedule of Investments [Line Items]
Units (as a percent)		0.59%	[7],[8],[29],[44]	0.59%	[9],[10],[30],[45]
Cost		$ 4,300	[7],[8],[29],[44]	$ 4,350	[9],[10],[30],[45]
Fair value		$ 4,308	[7],[8],[29],[44]	$ 4,358	[9],[10],[30],[45]
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund V, LP)
Schedule of Investments [Line Items]
Units (as a percent)		0.72%	[7],[8],[29],[44]	0.82%	[9],[10],[30],[45]
Cost		$ 2,500	[7],[8],[29],[44]	$ 2,000	[9],[10],[30],[45]
Fair value		$ 2,711	[7],[8],[29],[44]	$ 2,448	[9],[10],[30],[45]
Investment, Identifier [Axis]: Buca C, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		6		6
Total Rate		6%		6%		6%
PIK Rate		6%		6%		6%
Cost		$ 4,770		$ 4,770
Fair value		$ 0		$ 0		$ 0	0
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate				12%	[39]	12%
Principal	[39]			$ 16,980
Cost	[39]			16,980
Fair value				12,144	[39]	$ 11,964	12,337
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		14%
PIK Rate		14%
Principal		$ 58
Cost		58
Fair value		$ 58
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 1.1
Schedule of Investments [Line Items]
Total Rate		14%
PIK Rate		14%
Fair value		$ 12,515		12,144
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[32],[38]	14%
PIK Rate	[32],[38]	14%
Principal	[32],[38]	$ 20,080
Cost	[32],[38]	17,352
Fair value	[32],[38]	$ 12,515
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		14%
PIK Rate		14%
Fair value		$ 58		$ 0
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[6],[27]			10.46%
Spread (as a percent)		5%	[5],[24],[25]	5%	[6],[27]
Principal		$ 0	[5],[24],[25]	$ 465	[6],[27]
Cost		(16)	[5],[24],[25]	445	[6],[27]
Fair value		$ 0	[5],[24],[25]	$ 465	[6],[27]
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.44%	[5],[25]	10.46%	[6],[27]
Spread (as a percent)		5%	[5],[25]	5%	[6],[27]
Principal		$ 19,885	[5],[25]	$ 19,681	[6],[27]
Cost		19,684	[5],[25]	19,455	[6],[27]
Fair value		$ 19,885	[5],[25]	$ 19,681	[6],[27]
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 1
Schedule of Investments [Line Items]
Units (in shares)		2,142,167		1,788,527
Cost		$ 2,142		$ 1,789
Fair value		$ 2,227		$ 1,789
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 2
Schedule of Investments [Line Items]
Units (in shares)		596,176		596,176
Cost		$ 0		$ 0
Fair value		$ 0		$ 0
Investment, Identifier [Axis]: CBT Nuggets, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		416	[29]	416	[30]
Cost		$ 1,300	[29]	$ 1,300	[30]
Fair value		$ 49,540	[29]	$ 50,130	[30]	50,570	49,002
Investment, Identifier [Axis]: CMS Minerals Investments, Member Units
Schedule of Investments [Line Items]
Fair value						0	1,670
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[5],[24],[25]	7%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(57)	[5],[24],[25]	(66)	[6],[26],[27]
Fair value		$ (57)	[5],[24],[25]	$ (66)	[6],[26],[27]
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[5],[24],[25]	7%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(57)	[5],[24],[25]	(66)	[6],[26],[27]
Fair value		$ (57)	[5],[24],[25]	$ (66)	[6],[26],[27]
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.44%	[5],[25]	12.45%	[6],[27]
Spread (as a percent)		7%	[5],[25]	7%	[6],[27]
Principal		$ 11,109	[5],[25]	$ 11,250	[6],[27]
Cost		10,829	[5],[25]	10,920	[6],[27]
Fair value		$ 11,001	[5],[25]	$ 10,920	[6],[27]
Investment, Identifier [Axis]: Café Brazil, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		1,233	[29]	1,233	[30]
Cost		$ 1,742	[29]	$ 1,742	[30]
Fair value		$ 1,790	[29]	$ 1,980	[30]	2,130	2,210
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		8,671	[29]	3,671	[30]
Total Rate		15%	[29]	15%	[30]
PIK Rate		15%	[29]	15%	[30]
Cost		$ 10,173	[29]	$ 4,601	[30]
Fair value		10,173	[29]	4,601	[30]	$ 23,435	25,495
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Fair value		$ 15,695		$ 15,695
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		6,157	[29]	6,157	[30]
Total Rate						15%
PIK Rate						15%
Cost		$ 10,775	[29]	$ 10,775	[30]
Fair value		$ 15,695	[29]	15,695	[30]	$ 4,295	3,994
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Total Rate		15%
PIK Rate		15%
Fair value		$ 10,173		$ 4,601
Investment, Identifier [Axis]: California Splendor Holdings LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14%		15.69%	[27],[30]	15.25%
Spread (as a percent)				10%	[27],[30]	10%
PIK Rate		4%
Principal	[27],[30]			$ 28,000
Cost	[27],[30]			27,965
Fair value		$ 27,875		$ 27,655	[27],[30]	$ 28,000	28,000
Investment, Identifier [Axis]: California Splendor Holdings LLC, Secured Debt 1
Schedule of Investments [Line Items]
Principal	[24]	0
Cost	[24]	0
Fair value	[24]	$ 0
Investment, Identifier [Axis]: California Splendor Holdings LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14%
PIK Rate		4%
Principal		$ 28,336
Cost		28,263
Fair value		$ 27,875
Investment, Identifier [Axis]: Career Team Holdings, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		450,000		450,000
Cost		$ 4,500		$ 4,500
Fair value		$ 4,500		$ 4,500		$ 4,500	4,500
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.38%	[25]	11.38%	[27]	11.25%
Spread (as a percent)		6%	[25]	6%	[27]	6%
Principal		$ 900	[25]	$ 900	[27]
Cost		884	[25]	881	[27]
Fair value		$ 884	[25]	$ 881	[27]	$ 442	(9)
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%		13%		12.50%
Principal		$ 19,845		$ 20,025
Cost		19,747		19,906
Fair value		$ 19,747		$ 19,906		$ 20,110	20,090
Investment, Identifier [Axis]: CaseWorthy, Inc., Common Equity
Schedule of Investments [Line Items]
Units (in shares)		245,926	[5]	245,926	[6]
Cost		$ 246	[5]	$ 246	[6]
Fair value		$ 490	[5]	$ 246	[6]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[26],[27]			6%
Principal	[6],[26],[27]			$ 0
Cost	[6],[26],[27]			(8)
Fair value	[6],[26],[27]			$ (8)
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[6],[27]			11.61%
Spread (as a percent)	[6],[27]			6%
Principal	[6],[27]			$ 7,933
Cost	[6],[27]			7,872
Fair value	[6],[27]			$ 7,933
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[6],[27]			11.61%
Spread (as a percent)	[6],[27]			6%
Principal	[6],[27]			$ 6,102
Cost	[6],[27]			6,061
Fair value	[6],[27]			$ 6,102
Investment, Identifier [Axis]: Central Moloney, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[5],[25]	12.08%
Spread (as a percent)	[5],[25]	6.75%
Principal	[5],[25]	$ 39,801
Cost	[5],[25]	39,067
Fair value	[5],[25]	$ 39,404
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		13,309		13,309
Cost		$ 6,122		$ 6,122
Fair value		$ 11,500		$ 11,040		$ 10,400	8,700
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		10%	[24],[25]	9%	[26],[27]	9%
Principal		$ 0	[24],[25]	$ 0	[26],[27]
Cost		0	[24],[25]	0	[26],[27]
Fair value		$ 0	[24],[25]	$ 0	[26],[27]	$ 0	0
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.48%	[25]	14.48%	[27]	14.25%
Spread (as a percent)		10%	[25]	9%	[27]	9%
Principal		$ 20,462	[25]	$ 17,574	[27]
Cost		20,239	[25]	17,512	[27]
Fair value		$ 20,462	[25]	17,574	[27]	$ 15,030	14,954
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		15.48%
Spread (as a percent)		10%
Fair value		$ 20,462		0
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Fair value		$ 0		$ 17,574
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		4,347	[29]	4,347	[30]
Cost		$ 11,440	[29]	$ 11,440	[30]
Fair value		$ 30,030	[29]	$ 29,320	[30]	23,940	22,920
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		1,047,146	[29],[41]	1,047,146	[30],[40]
Cost		$ 1,773	[29],[41]	$ 1,773	[30],[40]
Fair value		$ 3,150	[29],[41]	$ 2,860	[30],[40]	$ 2,830	2,710
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[24],[25]	6%	[26],[27]	6%
Principal		$ 0	[24],[25]	$ 0	[26],[27]
Cost		(150)	[24],[25]	(195)	[26],[27]
Fair value		$ 0	[24],[25]	$ 0	[26],[27]	$ 0	0
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.49%	[25]	13.49%	[27]	13.36%
Spread (as a percent)		8%	[25]	8%	[27]	8%
Principal		$ 15,620	[25]	$ 15,620	[27]
Cost		15,618	[25]	15,617	[27]
Fair value		$ 15,620	[25]	$ 15,620	[27]	$ 16,407	16,945
Investment, Identifier [Axis]: Chandler Signs Holdings, LLC, Class A Units
Schedule of Investments [Line Items]
Fair value						0	1,790
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.58%	[5],[25],[31]	12.60%	[6],[27],[46]
Spread (as a percent)		7%	[5],[25],[31]	7%	[6],[27],[46]
Principal		$ 4,661	[5],[25],[31]	$ 2,071	[6],[27],[46]
Cost		4,518	[5],[25],[31]	1,901	[6],[27],[46]
Fair value		$ 4,394	[5],[25],[31]	$ 1,988	[6],[27],[46]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.55%	[5],[25]	12.66%	[6],[27]
Spread (as a percent)		7%	[5],[25]	7%	[6],[27]
Principal		$ 36,354	[5],[25]	$ 36,540	[6],[27]
Cost		35,966	[5],[25]	36,077	[6],[27]
Fair value		$ 34,272	[5],[25]	$ 35,064	[6],[27]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.55%	[5],[25]	12.66%	[6],[27]
Spread (as a percent)		7%	[5],[25]	7%	[6],[27]
Principal		$ 2,014	[5],[25]	$ 2,024	[6],[27]
Cost		1,993	[5],[25]	1,999	[6],[27]
Fair value		$ 1,899	[5],[25]	$ 1,943	[6],[27]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		12.55%	[5],[25]	12.66%	[6],[27]
Spread (as a percent)		7%	[5],[25]	7%	[6],[27]
Principal		$ 4,868	[5],[25]	$ 4,893	[6],[27]
Cost		4,783	[5],[25]	4,792	[6],[27]
Fair value		$ 4,589	[5],[25]	$ 4,695	[6],[27]
Investment, Identifier [Axis]: Charps, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		1,829	[29]	1,829	[30]
Cost		$ 1,963	[29]	$ 1,963	[30]
Fair value		$ 15,580	[29]	$ 15,690	[30]	$ 13,800	13,340
Investment, Identifier [Axis]: Charps, LLC, Unsecured Debt
Schedule of Investments [Line Items]
Total Rate		10%		10%		10%
Principal		$ 5,694		$ 5,694
Cost		4,922		4,678
Fair value		$ 5,694		$ 5,694		$ 5,694	5,694
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		717	[29]	717	[30]
Cost		$ 7,280	[29]	$ 7,280	[30]
Fair value		$ 6,210	[29]	$ 5,200	[30]	6,380	8,220
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		800	[41]	800	[40]
Cost		$ 509	[41]	$ 509	[40]
Fair value		950	[41]	1,129	[40]	1,129	610
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Principal		0	[24]	0	[26]
Cost		0	[24]	0	[26]
Fair value		$ 0	[24]	$ 0	[26]	$ 0	0
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.50%		11.50%		11.50%
Principal		$ 7,960		$ 8,560
Cost		7,938		8,560
Fair value		$ 7,801		$ 8,422		$ 9,634	10,440
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10%		10%		10%
Principal		$ 993		$ 1,013
Cost		985		1,004
Fair value		985		1,004		$ 1,022	1,039
Investment, Identifier [Axis]: Clarius BIGS, LLC, Secured Debt
Schedule of Investments [Line Items]
Principal		2,677	[5],[32],[38]	2,677	[6],[33],[39]
Cost		2,677	[5],[32],[38]	2,677	[6],[33],[39]
Fair value		$ 16	[5],[32],[38]	$ 16	[6],[33],[39]
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		154	[29]	154	[30]
Cost		$ 0	[29]	$ 5,760	[30]
Fair value		$ 2,469	[29]	$ 16,000	[30]	$ 18,230	24,637
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				11.69%	[27]	11.25%
Spread (as a percent)		6%		6%	[27]	6%
Principal	[27]			$ 4,560
Cost	[27]			4,560
Fair value		$ 0		$ 4,560	[27]	$ 4,560	4,560
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				8%		8%
Principal				$ 19,274
Cost				19,224
Fair value		$ 0		$ 19,274		$ 19,274	19,274
Investment, Identifier [Axis]: Cody Pools, Inc., Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		587	[29],[41]	587	[30],[40]
Cost		$ 8,317	[29],[41]	$ 8,317	[30],[40]
Fair value		74,480	[29],[41]	72,470	[30],[40]	65,120	58,180
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Principal		0	[24]	0	[26]
Cost		(15)	[24]	(11)	[26]
Fair value		$ 0	[24]	$ 0	[26]	$ 0	0
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%		12.50%		12.50%
Principal		$ 40,801		$ 42,073
Cost		40,775		42,042
Fair value		$ 40,801		$ 42,073		$ 46,312	0
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)						10.50%
Fair value						$ 0	1,462
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)						10.50%
Fair value						$ 0	40,801
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)	[29]	17,280
Cost	[29]	$ 7,680
Fair value	[29]	11,740
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)				960
Cost				$ 960
Fair value		0		$ 2,400		2,400	0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)				17,280
Cost				$ 7,680
Fair value		11,740		7,680		7,680	9,160
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 1
Schedule of Investments [Line Items]
Principal		0	[24]	0	[26]
Cost		0	[24]	0	[26]
Fair value		$ 0	[24]	$ 0	[26]	$ 0	0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%		12%		12%
Principal		$ 18,140		$ 22,050
Cost		18,073		21,946
Fair value		$ 18,140		$ 21,627		$ 22,049	23,151
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		1,975	[29]	1,975	[30]
Cost		$ 1,975	[29]	$ 1,975	[30]
Fair value		$ 12,930	[29]	$ 14,450	[30]	$ 16,380	19,830
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[25]	14.48%
Spread (as a percent)	[25]	9%
Principal	[25]	$ 3,162
Cost	[25]	3,097
Fair value	[25]	$ 3,097
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		9%		9%	[26],[27],[39]	9%
Principal	[26],[27],[39]			$ 0
Cost	[26],[27],[39]			0
Fair value		$ 0		$ 0	[26],[27],[39]	$ 0	0
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.48%		14.48%	[27]	14.25%
Spread (as a percent)		9%		9%	[27]	9%
Principal	[27]			$ 3,454
Cost	[27]			3,454
Fair value		$ 3,097		$ 3,454	[27]	$ 4,869	5,241
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		7,454		7,454
Cost		$ 7,454		$ 7,454
Fair value		$ 7,950		7,454
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.50%
Principal		$ 1,600		0	[26]
Cost		1,584		0	[26]
Fair value		$ 1,584		$ 0	[26]
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%		13.50%
Principal		$ 17,200		$ 17,200
Cost		17,051		17,034
Fair value		$ 17,051		$ 17,034
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.47%	[5],[25],[31]	13.52%	[6],[27],[47]
Spread (as a percent)		8%	[5],[25],[31]	8%	[6],[27],[47]
Principal		$ 6,000	[5],[25],[31]	$ 5,000	[6],[27],[47]
Cost		5,891	[5],[25],[31]	4,948	[6],[27],[47]
Fair value		$ 5,911	[5],[25],[31]	$ 4,848	[6],[27],[47]
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[6],[27]			13.52%
Spread (as a percent)		8%	[5],[24],[25]	8%	[6],[27]
Principal		$ 0	[5],[24],[25]	$ 18,313	[6],[27]
Cost		(149)	[5],[24],[25]	18,119	[6],[27]
Fair value		$ (149)	[5],[24],[25]	$ 17,757	[6],[27]
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[5],[25]	13.47%
Spread (as a percent)	[5],[25]	8%
Principal	[5],[25]	$ 18,175
Cost	[5],[25]	18,019
Fair value	[5],[25]	$ 17,906
Investment, Identifier [Axis]: Congruent Credit Opportunities Funds, LP Interests (Congruent Credit Opportunities Fund III, LP)
Schedule of Investments [Line Items]
Units (as a percent)		12.49%	[7],[8],[29],[44]	12.49%	[9],[10],[30],[45]
Cost		$ 3,019	[7],[8],[29],[44]	$ 4,778	[9],[10],[30],[45]
Fair value		2,542	[7],[8],[29],[44]	4,352	[9],[10],[30],[45]
Investment, Identifier [Axis]: Congruent Credit Opportunities Funds, LP Interests (Congruent Credit Opportunities Fund III, LP)
Schedule of Investments [Line Items]
Fair value		$ 2,542		$ 4,352		5,562	7,657
Investment, Identifier [Axis]: Construction Supply Investments, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		861,618	[5]	861,618	[6]
Cost		$ 3,335	[5]	$ 3,335	[6]
Fair value		$ 22,430	[5]	$ 23,135	[6]
Investment, Identifier [Axis]: Copper Trail Fund Investments, LP Interests (CTMH, LP)
Schedule of Investments [Line Items]
Units (as a percent)		38.75%	[7],[8],[29],[44]	38.75%	[9],[10],[30],[45]
Cost		$ 568	[7],[8],[29],[44]	$ 568	[9],[10],[30],[45]
Fair value		$ 568	[7],[8],[29],[44]	$ 568	[9],[10],[30],[45]	588	588
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[5],[13],[25]	6.50%
Principal	[5],[13],[25]	$ 477
Cost	[5],[13],[25]	389
Fair value	[5],[13],[25]	$ 389
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[5],[13],[25]	11.83%
Spread (as a percent)	[5],[13],[25]	6.50%
Principal	[5],[13],[25]	$ 10,731
Cost	[5],[13],[25]	10,476
Fair value	[5],[13],[25]	$ 10,476
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[5],[13],[25]	12.01%
Spread (as a percent)	[5],[13],[25]	6.75%
Principal	[5],[13],[25]	$ 32,192
Cost	[5],[13],[25]	31,392
Fair value	[5],[13],[25]	$ 31,392
Investment, Identifier [Axis]: Creative Foam Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[5],[24],[25]	5.75%
Principal	[5],[24],[25]	$ 0
Cost	[5],[24],[25]	(302)
Fair value	[5],[24],[25]	$ (302)
Investment, Identifier [Axis]: Creative Foam Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[5],[25]	11.09%
Spread (as a percent)	[5],[25]	5.75%
Principal	[5],[25]	$ 107,625
Cost	[5],[25]	105,508
Fair value	[5],[25]	$ 105,508
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		556	[29]	556
Cost		$ 15,000	[29]	$ 15,000
Fair value		16,020	[29]	15,000		15,000	0
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Principal		0	[24]	0	[26]
Cost		0	[24]	0	[26]
Fair value		$ 0	[24]	$ 0	[26]	$ 0	0
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%		13%		13%
Principal		$ 27,663		$ 28,638
Cost		27,449		28,389
Fair value		$ 27,449		$ 28,389		$ 28,720	0
Investment, Identifier [Axis]: DMA Industries, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		9,012		5,944
Cost		$ 9,012		$ 5,944
Fair value		$ 9,012		$ 7,660		$ 7,260	7,260
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate				12%		12%
Principal				$ 18,800
Cost				18,685
Fair value				18,800		$ 20,000	21,200
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%
Principal		$ 560
Cost		554
Fair value		$ 560
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 1.1
Schedule of Investments [Line Items]
Total Rate		12%
Fair value		$ 16,800		18,800
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%
Principal		$ 16,800
Cost		16,713
Fair value		$ 16,800
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		12%
Fair value		$ 560		$ 0
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class A Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		776,316	[5]	776,316	[6]
Total Rate		8%	[5]	8%	[6]
PIK Rate		8%	[5]	8%	[6]
Cost		$ 776	[5]	$ 776	[6]
Fair value		$ 0	[5]	$ 260	[6]
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class AA Preferred Member Units (non-voting)
Schedule of Investments [Line Items]
Total Rate		10%	[5],[29]	10%	[6],[30]
PIK Rate		10%	[5],[29]	10%	[6],[30]
Cost		$ 1,316	[5],[29]	$ 1,284	[6],[30]
Fair value		$ 855	[5],[29]	$ 1,284	[6],[30]
Investment, Identifier [Axis]: Dalton US Inc., Common Stock
Schedule of Investments [Line Items]
Units (in shares)		515	[5]	515	[6]
Cost		$ 720	[5]	$ 720	[6]
Fair value		$ 830	[5]	$ 830	[6]
Investment, Identifier [Axis]: Datacom, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		9,000		9,000
Cost		$ 2,610		$ 2,610
Fair value		$ 200		$ 70		$ 2,350	2,670
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		7.50%		7.50%		7.50%
Principal		$ 270		$ 450
Cost		268		447
Fair value		$ 268		$ 447		$ 716	223
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		10%		10%
Principal		$ 8,217		$ 8,352
Cost		8,011		8,073
Fair value		$ 7,525		$ 7,587		$ 7,732	7,789
Investment, Identifier [Axis]: Digital Products Holdings LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		3,857	[29]	3,857	[30]
Cost		$ 9,501	[29]	$ 9,501	[30]
Fair value		$ 9,835	[29]	$ 9,835	[30]	$ 9,835	9,835
Investment, Identifier [Axis]: Digital Products Holdings LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.38%	[25]	15.38%	[27]	15.25%
Spread (as a percent)		10%	[25]	10%	[27]	10%
Principal		$ 13,420	[25]	$ 14,873	[27]
Cost		13,338	[25]	14,758	[27]
Fair value		$ 13,271	[25]	$ 14,690	[27]	$ 14,733	15,523
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Preferred Stock
Schedule of Investments [Line Items]
Units (in shares)		8,400		8,400	[30]
Cost		$ 8,400		$ 8,400	[30]
Fair value		19,600		$ 20,740	[30]	23,350	22,220
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				14%
Principal		0	[24]	$ 1,233
Cost		(45)	[24]	1,174
Fair value		$ 0	[24]	$ 1,233		$ 0	0
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14%		14%		13%
Principal		$ 24,723		$ 25,543
Cost		24,659		25,457
Fair value		$ 24,723		$ 25,543		$ 26,465	27,267
Investment, Identifier [Axis]: Dos Rios Partners, LP Interests (Dos Rios Partners - A, LP)
Schedule of Investments [Line Items]
Units (as a percent)		6.43%	[7],[8],[44]	6.43%	[9],[10],[45]
Cost		$ 1,960	[7],[8],[44]	$ 2,005	[9],[10],[45]
Fair value		$ 2,621	[7],[8],[44]	$ 2,631	[9],[10],[45]	2,852	2,898
Investment, Identifier [Axis]: Dos Rios Partners, LP Interests (Dos Rios Partners, LP)
Schedule of Investments [Line Items]
Units (as a percent)		20.24%	[7],[8],[44]	20.24%	[9],[10],[45]
Cost		$ 6,172	[7],[8],[44]	$ 6,313	[9],[10],[45]
Fair value		$ 8,412	[7],[8],[44]	$ 8,443	[9],[10],[45]	9,138	9,127
Investment, Identifier [Axis]: Dos Rios Stone Products LLC, Class A Preferred Units
Schedule of Investments [Line Items]
Units (in shares)		2,000,000	[5],[41]	2,000,000	[6],[40]
Cost		$ 2,000	[5],[41]	$ 2,000	[6],[40]
Fair value		$ 1,330	[5],[41]	$ 1,580	[6],[40]	1,580	1,330
Investment, Identifier [Axis]: Dreyfus Government Cash Management
Schedule of Investments [Line Items]
Total Rate		4.94%		4.98%
Cost		$ 2,226	[48]	$ 13,476	[49]
Fair value		$ 2,226	[48]	$ 13,476	[49]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		1,250,000	[5]	1,250,000	[6]
Cost		$ 0	[5]	$ 0	[6]
Fair value		$ 0	[5]	$ 0	[6]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 1
Schedule of Investments [Line Items]
Units (in shares)		125,000	[5]	125,000	[6]
Cost		$ 128	[5]	$ 128	[6]
Fair value		$ 60	[5]	$ 60	[6]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 2
Schedule of Investments [Line Items]
Units (in shares)		2,376,241	[5]	2,376,241	[6]
Cost		$ 0	[5]	$ 0	[6]
Fair value		$ 0	[5]	$ 0	[6]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.44%	[5],[25]	10.45%	[6],[27]
Spread (as a percent)		6%	[5],[25]	5%	[6],[27]
PIK Rate		11.44%	[5],[25]	10.45%	[6],[27]
Principal		$ 2,184	[5],[25]	$ 2,071	[6],[27]
Cost		2,026	[5],[25]	1,912	[6],[27]
Fair value		$ 2,026	[5],[25]	$ 1,912	[6],[27]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.44%	[5],[25]	12.45%	[6],[27]
Spread (as a percent)		8%	[5],[25]	7%	[6],[27]
PIK Rate		13.44%	[5],[25]	12.45%	[6],[27]
Principal		$ 2,252	[5],[25]	$ 2,113	[6],[27]
Cost		2,018	[5],[25]	1,880	[6],[27]
Fair value		$ 1,998	[5],[25]	$ 1,859	[6],[27]
Investment, Identifier [Axis]: Dynata, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[11],[25]	14.21%
Spread (as a percent)	[11],[25]	8.75%
Principal	[11],[25]	$ 646
Cost	[11],[25]	635
Fair value	[11],[25]	$ 653
Investment, Identifier [Axis]: EIG Fund Investments, LP Interests (EIG Global Private Debt Fund-A, L.P.)
Schedule of Investments [Line Items]
Units (in shares)		5,000,000	[7],[8],[29]	5,000,000	[9],[10],[30],[45]
Cost		$ 808	[7],[8],[29]	$ 808	[9],[10],[30],[45]
Fair value		$ 761	[7],[8],[29]	$ 760	[9],[10],[30],[45]	974	1,013
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.49%	[5],[25],[31]	13.50%	[6],[27]
Spread (as a percent)		8%	[5],[25],[31]	8%	[6],[27]
Principal		$ 2,826	[5],[25],[31]	$ 967	[6],[27]
Cost		2,792	[5],[25],[31]	930	[6],[27]
Fair value		$ 2,692	[5],[25],[31]	$ 927	[6],[27]
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.48%	[5],[25]	13.50%	[6],[27]
Spread (as a percent)		8%	[5],[25]	8%	[6],[27]
Principal		$ 4,402	[5],[25]	$ 4,792	[6],[27]
Cost		4,371	[5],[25]	4,758	[6],[27]
Fair value		$ 4,193	[5],[25]	$ 4,596	[6],[27]
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.48%	[5],[25]	13.50%	[6],[27]
Spread (as a percent)		8%	[5],[25]	8%	[6],[27]
Principal		$ 8,781	[5],[25]	$ 9,557	[6],[27]
Cost		8,713	[5],[25]	9,483	[6],[27]
Fair value		$ 8,364	[5],[25]	$ 9,167	[6],[27]
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		13.48%	[5],[25]	13.50%	[6],[27]
Spread (as a percent)		8%	[5],[25]	8%	[6],[27]
Principal		$ 1,821	[5],[25]	$ 1,982	[6],[27]
Cost		1,809	[5],[25]	1,964	[6],[27]
Fair value		$ 1,735	[5],[25]	$ 1,901	[6],[27]
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate		13.48%	[5],[25]	13.50%	[6],[27]
Spread (as a percent)		8%	[5],[25]	8%	[6],[27]
Principal		$ 9,964	[5],[25]	$ 10,846	[6],[27]
Cost		9,899	[5],[25]	10,747	[6],[27]
Fair value		$ 9,492	[5],[25]	$ 10,403	[6],[27]
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 1
Schedule of Investments [Line Items]
Units (in shares)		285		285
Cost		$ 5,726		$ 5,726
Fair value		$ 5,730		$ 6,090		6,090	7,603
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 2
Schedule of Investments [Line Items]
Units (in shares)		939	[41]	939	[40]
Cost		$ 1,558	[41]	$ 1,558	[40]
Fair value		$ 1,750	[41]	$ 1,670	[40]	$ 1,670	1,558
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[24],[25]	6%	[26],[27]	6%
Principal		$ 0	[24],[25]	$ 0	[26],[27]
Cost		(6)	[24],[25]	(7)	[26],[27]
Fair value		$ (6)	[24],[25]	$ (7)	[26],[27]	$ (8)	(9)
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%		12%		12%
Principal		$ 18,303		$ 18,773
Cost		18,184		18,632
Fair value		$ 18,184		$ 18,632		$ 18,613	18,594
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		9%		9%		9%
Principal		$ 6,289		$ 6,313
Cost		6,230		6,252
Fair value		$ 6,230		$ 6,252		$ 6,274	6,294
Investment, Identifier [Axis]: Emerald Technologies Acquisition Co, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.75%	[11],[25]	11.79%	[12],[27]
Spread (as a percent)		6.25%	[11],[25]	6.25%	[12],[27]
Principal		$ 9,716	[11],[25]	$ 8,965	[12],[27]
Cost		9,535	[11],[25]	8,841	[12],[27]
Fair value		$ 8,744	[11],[25]	$ 8,158	[12],[27]
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Energy Capital Fund IX, L.P.)
Schedule of Investments [Line Items]
Units (as a percent)		0.10%	[7],[8],[29],[44]	0.10%	[9],[10],[30],[45]
Cost		$ 3,209	[7],[8],[29],[44]	$ 3,564	[9],[10],[30],[45]
Fair value		$ 1,127	[7],[8],[29],[44]	$ 1,720	[9],[10],[30],[45]
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Energy Capital Fund VIII Co-Investors, L.P.)
Schedule of Investments [Line Items]
Units (as a percent)		0.38%	[7],[8],[29],[44]	0.38%	[9],[10],[30],[45]
Cost		$ 1,980	[7],[8],[29],[44]	$ 1,980	[9],[10],[30],[45]
Fair value		$ 899	[7],[8],[29],[44]	$ 899	[9],[10],[30],[45]
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Energy Capital Fund VIII, L.P.)
Schedule of Investments [Line Items]
Units (as a percent)		0.14%	[7],[8],[29],[44]	0.14%	[9],[10],[30],[45]
Cost		$ 3,567	[7],[8],[29],[44]	$ 3,567	[9],[10],[30],[45]
Fair value		$ 1,843	[7],[8],[29],[44]	$ 1,918	[9],[10],[30],[45]
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Energy Capital Fund X, L.P.)
Schedule of Investments [Line Items]
Units (as a percent)		0.15%	[7],[8],[29],[44]	0.15%	[9],[10],[30],[45]
Cost		$ 7,142	[7],[8],[29],[44]	$ 6,742	[9],[10],[30],[45]
Fair value		$ 6,081	[7],[8],[29],[44]	$ 5,858	[9],[10],[30],[45]
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Energy Capital Fund XII, L.P.)
Schedule of Investments [Line Items]
Units (as a percent)	[7],[8],[44]	0.41%
Cost	[7],[8],[44]	$ 4,391
Fair value	[7],[8],[44]	$ 4,391
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Flatrock Midstream Fund II, L.P.)
Schedule of Investments [Line Items]
Units (as a percent)		0.84%	[7],[8],[29],[44]	0.84%	[9],[10],[30],[45]
Cost		$ 5,083	[7],[8],[29],[44]	$ 5,083	[9],[10],[30],[45]
Fair value		$ 1,566	[7],[8],[29],[44]	$ 1,413	[9],[10],[30],[45]
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Flatrock Midstream Fund III, L.P.)
Schedule of Investments [Line Items]
Units (as a percent)		0.25%	[7],[8],[29],[44]	0.25%	[9],[10],[30],[45]
Cost		$ 4,378	[7],[8],[29],[44]	$ 4,495	[9],[10],[30],[45]
Fair value		$ 3,939	[7],[8],[29],[44]	$ 4,056	[9],[10],[30],[45]
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[5],[25],[31]	14%
Spread (as a percent)		5.50%	[5],[25],[31]	5.50%	[6],[26],[27]
Principal		$ 328	[5],[25],[31]	$ 0	[6],[26],[27]
Cost		298	[5],[25],[31]	(35)	[6],[26],[27]
Fair value		$ 328	[5],[25],[31]	$ 0	[6],[26],[27]
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.94%	[5],[25]	11.98%	[6],[27]
Spread (as a percent)		6.50%	[5],[25]	6.50%	[6],[27]
Principal		$ 16,052	[5],[25]	$ 16,134	[6],[27]
Cost		15,845	[5],[25]	15,899	[6],[27]
Fair value		$ 15,827	[5],[25]	$ 16,134	[6],[27]
Investment, Identifier [Axis]: Escalent, Inc., Common Equity
Schedule of Investments [Line Items]
Units (in shares)		649,794	[5]	649,794	[6]
Cost		$ 663	[5]	$ 663	[6]
Fair value		$ 780	[5]	$ 730	[6]
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[5],[24],[25]	8%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(31)	[5],[24],[25]	(35)	[6],[26],[27]
Fair value		$ (31)	[5],[24],[25]	$ (35)	[6],[26],[27]
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.43%	[5],[25]	13.45%	[6],[27]
Spread (as a percent)		8%	[5],[25]	8%	[6],[27]
Principal		$ 26,180	[5],[25]	$ 26,313	[6],[27]
Cost		25,554	[5],[25]	25,620	[6],[27]
Fair value		$ 26,180	[5],[25]	$ 26,313	[6],[27]
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.60%	[5],[25]	12.61%	[6],[27]
Spread (as a percent)		8%	[5],[25]	7%	[6],[27]
Principal		$ 3,692	[5],[25]	$ 3,692	[6],[27]
Cost		3,674	[5],[25]	3,670	[6],[27]
Fair value		$ 3,692	[5],[25]	$ 3,626	[6],[27]
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.60%	[5],[25]	12.61%	[6],[27]
Spread (as a percent)		8%	[5],[25]	7%	[6],[27]
PIK Rate	[5],[25]	8%
Principal		$ 45,974	[5],[25]	$ 44,169	[6],[27]
Cost		45,754	[5],[25]	43,905	[6],[27]
Fair value		$ 45,712	[5],[25]	43,373	[6],[27]
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC (Supplycore), Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%
Principal		$ 32,800
Cost		28,691
Fair value		$ 28,691
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC (Supplycore), Warrants
Schedule of Investments [Line Items]
Units (in shares)	[22]	12
Cost	[22]	$ 3,920
Fair value	[22]	$ 3,920
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%
Fair value		$ 28,691		0
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC, Warrants
Schedule of Investments [Line Items]
Fair value		$ 3,920		$ 0
Investment, Identifier [Axis]: Fidelity Government Fund
Schedule of Investments [Line Items]
Total Rate		4.97%		5.01%
Cost	[50]	$ 2,307
Fair value	[50]	$ 2,307
Investment, Identifier [Axis]: Fidelity Government Fund
Schedule of Investments [Line Items]
Cost	[51]			$ 1,678
Fair value	[51]			$ 1,678
Investment, Identifier [Axis]: Fidelity Treasury
Schedule of Investments [Line Items]
Total Rate		4.95%		4.99%
Cost		$ 1,353	[52]	$ 70	[53]
Fair value		$ 1,353	[52]	$ 70	[53]
Investment, Identifier [Axis]: Flame King Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		9,360	[29]	9,360	[30]
Cost		$ 10,400	[29]	$ 10,400	[30]
Fair value		$ 35,750	[29]	$ 27,900	[30]	$ 24,350	17,580
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)						6.50%
Fair value						$ 0	7,600
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)						9%
Fair value						$ 0	21,200
Investment, Identifier [Axis]: Freeport Financial Funds, LP Interests (Freeport Financial SBIC Fund LP)
Schedule of Investments [Line Items]
Units (as a percent)		9.30%	[7],[8],[44]	9.30%	[9],[10],[45]
Cost		$ 2,580	[7],[8],[44]	$ 2,859	[9],[10],[45]
Fair value		$ 2,656	[7],[8],[44]	$ 3,012	[9],[10],[45]
Investment, Identifier [Axis]: Freeport Financial Funds, LP Interests (Freeport First Lien Loan Fund III LP)
Schedule of Investments [Line Items]
Units (as a percent)		5.95%	[7],[8],[29],[44]	5.95%	[9],[10],[30],[45]
Cost		$ 3,051	[7],[8],[29],[44]	$ 4,160	[9],[10],[30],[45]
Fair value		2,596	[7],[8],[29],[44]	3,704	[9],[10],[30],[45]
Investment, Identifier [Axis]: Freeport Financial SBIC Fund LP, LP Interests (Freeport Financial SBIC Fund LP)
Schedule of Investments [Line Items]
Fair value		2,656		3,012		3,628	3,483
Investment, Identifier [Axis]: Freeport Financial SBIC Fund LP, LP Interests (Freeport First Lien Loan Fund III LP)
Schedule of Investments [Line Items]
Fair value		$ 2,596		$ 3,704		5,312	5,848
Investment, Identifier [Axis]: Fuse, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		10,429	[11]	10,429	[12]
Cost		$ 256	[11]	$ 256	[12]
Fair value		$ 0	[11]	$ 0	[12]
Investment, Identifier [Axis]: Fuse, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12%	[11]	12%	[12]
Principal		$ 1,810	[11]	$ 1,810	[12]
Cost		1,810	[11]	1,810	[12]
Fair value		$ 1,076	[11]	$ 1,320	[12]
Investment, Identifier [Axis]: GFG Group, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		226	[29]	226	[30]
Cost		$ 4,900	[29]	$ 4,900	[30]
Fair value		$ 9,810	[29]	$ 11,460	[30]	$ 8,310	7,140
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		8%		8%		9%
Principal		$ 9,345		$ 9,345
Cost		9,312		9,302
Fair value		$ 9,345		$ 9,345		$ 11,345	11,345
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		5,879	[29]	5,879
Cost		$ 13,065	[29]	$ 13,065
Fair value		$ 44,440	[29]	$ 44,440		$ 44,440	44,440
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.48%		11.48%		11.17%
Spread (as a percent)		6%		6%		6%
Principal		$ 3,146		$ 2,400
Cost		3,138		2,394
Fair value		$ 3,146		$ 2,400		$ 1,300	670
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.48%		13.48%		13.17%
Spread (as a percent)		8%		8%		8%
Principal		$ 40,493		$ 40,493
Cost		40,382		40,360
Fair value		$ 40,493		$ 40,493		$ 40,493	40,493
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[6],[27],[54]			11.96%
Spread (as a percent)		6.50%	[5],[24],[25]	6.50%	[6],[27],[54]
Principal		$ 0	[5],[24],[25]	$ 1,545	[6],[27],[54]
Cost		(9)	[5],[24],[25]	1,542	[6],[27],[54]
Fair value		(9)	[5],[24],[25]	$ 1,545	[6],[27],[54]
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[26],[27]			6.50%
Principal		0	[5],[24]	$ 0	[6],[26],[27]
Cost		(5)	[5],[24]	(9)	[6],[26],[27]
Fair value		$ (5)	[5],[24]	$ (9)	[6],[26],[27]
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.94%	[5],[25]	11.96%	[6],[27]
Spread (as a percent)		6.50%	[5],[25]	6.50%	[6],[27]
Principal		$ 10,568	[5],[25]	$ 10,624	[6],[27]
Cost		10,526	[5],[25]	10,605	[6],[27]
Fair value		$ 10,568	[5],[25]	$ 10,624	[6],[27]
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		11.94%	[5],[25]	11.96%	[6],[27]
Spread (as a percent)		6.50%	[5],[25]	6.50%	[6],[27]
Principal		$ 947	[5],[25]	$ 952	[6],[27]
Cost		945	[5],[25]	952	[6],[27]
Fair value		$ 947	[5],[25]	$ 952	[6],[27]
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate		11.94%	[5],[25]	11.96%	[6],[27]
Spread (as a percent)		6.50%	[5],[25]	6.50%	[6],[27]
Principal		$ 226	[5],[25]	$ 227	[6],[27]
Cost		224	[5],[25]	224	[6],[27]
Fair value		$ 226	[5],[25]	$ 227	[6],[27]
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.48%	[5],[25],[31]	11.28%	[6],[27],[55]
Spread (as a percent)		6%	[5],[25],[31]	5.75%	[6],[27],[55]
Principal		$ 707	[5],[25],[31]	$ 454	[6],[27],[55]
Cost		693	[5],[25],[31]	438	[6],[27],[55]
Fair value		$ 703	[5],[25],[31]	$ 454	[6],[27],[55]
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.45%	[5],[25]	11.38%	[6],[27]
Spread (as a percent)		6%	[5],[25]	5.75%	[6],[27]
Principal		$ 299	[5],[25]	$ 301	[6],[27]
Cost		286	[5],[25]	286	[6],[27]
Fair value		$ 297	[5],[25]	$ 301	[6],[27]
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.48%	[5],[25]	11.25%	[6],[27]
Spread (as a percent)		6%	[5],[25]	5.75%	[6],[27]
Principal		$ 3,597	[5],[25]	$ 3,615	[6],[27]
Cost		3,545	[5],[25]	3,558	[6],[27]
Fair value		$ 3,561	[5],[25]	$ 3,615	[6],[27]
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		9,042	[29]	9,042	[30]
Cost		$ 17,692	[29]	$ 17,692	[30]
Fair value		$ 106,550	[29]	$ 96,710	[30]	$ 70,160	50,890
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7.50%	[24],[25],[36]	7.50%	[26],[27],[37]	8.50%
Principal		$ 0	[24],[25],[36]	$ 0	[26],[27],[37]
Cost		0	[24],[25],[36]	0	[26],[27],[37]
Fair value		$ 0	[24],[25],[36]	$ 0	[26],[27],[37]	$ 0	0
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.50%	[25],[36]	10.50%	[27],[37]	11%
Spread (as a percent)		7.50%	[25],[36]	7.50%	[27],[37]	8%
Principal		$ 49,278	[25],[36]	$ 54,078	[27],[37]
Cost		49,073	[25],[36]	53,813	[27],[37]
Fair value		$ 49,278	[25],[36]	$ 54,078	[27],[37]	$ 59,678	64,078
Investment, Identifier [Axis]: Garreco, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		1,200	[29]	1,200
Cost		$ 1,200	[29]	$ 1,200
Fair value		$ 1,580	[29]	$ 1,580		$ 1,580	1,800
Investment, Identifier [Axis]: Garreco, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate				9.50%	[27],[56]	12%
Spread (as a percent)		8%		8%	[27],[56]	10%
Principal	[27],[56]			$ 3,088
Cost	[27],[56]			3,088
Fair value		$ 0		$ 3,088	[27],[56]	$ 3,272	3,826
Investment, Identifier [Axis]: Garyline, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		705,882	[5]	705,882	[6]
Cost		$ 706	[5]	$ 706	[6]
Fair value		$ 810	[5]	$ 706	[6]
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[5],[25]	11.93%
Spread (as a percent)		6.50%	[5],[25]	6.75%	[6],[26],[27]
Principal		$ 2,824	[5],[25]	$ 0	[6],[26],[27]
Cost		2,594	[5],[25]	(256)	[6],[26],[27]
Fair value		$ 2,812	[5],[25]	$ (256)	[6],[26],[27]
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.93%	[5],[25]	12.22%	[6],[27]
Spread (as a percent)		6.50%	[5],[25]	6.75%	[6],[27]
Principal		$ 32,308	[5],[25]	$ 32,471	[6],[27]
Cost		31,464	[5],[25]	31,529	[6],[27]
Fair value		$ 32,178	[5],[25]	$ 31,529	[6],[27]
Investment, Identifier [Axis]: Gulf Manufacturing, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		438	[7],[13],[29]	438	[30]
Cost		$ 2,980	[7],[13],[29]	$ 2,980	[30]
Fair value		$ 14,980	[7],[13],[29]	9,070	[30]	8,000	6,790
Investment, Identifier [Axis]: Gulf Manufacturing, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[7],[13],[24]	7.63%
Principal	[7],[13],[24]	$ 0
Cost	[7],[13],[24]	(47)
Fair value		$ 0	[7],[13],[24]	0
Investment, Identifier [Axis]: Gulf Manufacturing, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[13]	13%
Spread (as a percent)	[7],[13]	7.63%
Principal	[7],[13]	$ 40,000
Cost	[7],[13]	39,627
Fair value		$ 40,000	[7],[13]	$ 0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		3,681		3,681
Cost		$ 3,681		$ 3,681
Fair value		$ 0		$ 0		0	0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		63,720		63,720
Cost		$ 5,600		$ 5,600
Fair value		$ 0		$ 2,460		$ 3,780	3,780
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		9.50%	[24],[25],[32]	9.50%	[26],[27]	9.50%
Principal		$ 0	[24],[25],[32]	$ 0	[26],[27]
Cost		0	[24],[25],[32]	0	[26],[27]
Fair value		$ 0	[24],[25],[32]	$ 0	[26],[27]	$ 0	0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%	[32]	12.50%		12.50%
PIK Rate	[32]	12.50%
Principal		$ 2,400	[32]	$ 2,400
Cost		2,400	[32]	2,400
Fair value		$ 1,948	[32]	$ 2,284		$ 2,284	2,284
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Common Equity
Schedule of Investments [Line Items]
Units (in shares)	[5]	64,029
Cost	[5]	$ 0
Fair value	[5]	$ 0
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		9.10%	[5],[25]	14.34%	[6],[27],[39]
Spread (as a percent)		3.50%	[5],[25]	9.50%	[6],[27],[39]
PIK Rate		2.50%	[5],[25]	14.34%	[6],[27],[39]
Principal		$ 2,393	[5],[25]	$ 370	[6],[27],[39]
Cost		2,264	[5],[25]	370	[6],[27],[39]
Fair value		$ 2,264	[5],[25]	$ 336	[6],[27],[39]
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		2.50%	[5],[32]	14.34%	[6],[27],[39]
Spread (as a percent)	[6],[27],[39]			9.50%
PIK Rate		2.50%	[5],[32]	14.34%	[6],[27],[39]
Principal		$ 1,626	[5],[32]	$ 3,751	[6],[27],[39]
Cost		713	[5],[32]	3,751	[6],[27],[39]
Fair value		$ 638	[5],[32]	$ 3,406	[6],[27],[39]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[5],[24],[25]	6.50%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(42)	[5],[24],[25]	(48)	[6],[26],[27]
Fair value		$ (42)	[5],[24],[25]	$ (48)	[6],[26],[27]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.84%	[5],[25]	11.86%	[6],[27]
Spread (as a percent)		6.50%	[5],[25]	6.50%	[6],[27]
Principal		$ 6,699	[5],[25]	$ 6,733	[6],[27]
Cost		6,604	[5],[25]	6,622	[6],[27]
Fair value		$ 6,699	[5],[25]	$ 6,733	[6],[27]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[6],[27]			11.86%
Spread (as a percent)		6.50%	[24],[25]	6.50%	[6],[27]
Principal		$ 0	[24],[25]	$ 16,622	[6],[27]
Cost		(66)	[24],[25]	16,384	[6],[27]
Fair value		$ (66)	[24],[25]	$ 16,622	[6],[27]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[5],[25]	11.84%
Spread (as a percent)	[5],[25]	6.50%
Principal	[5],[25]	$ 16,538
Cost	[5],[25]	16,334
Fair value	[5],[25]	$ 16,537
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate	[5],[25]	11.83%
Spread (as a percent)	[5],[25]	6.50%
Principal	[5],[25]	$ 8,080
Cost	[5],[25]	8,001
Fair value	[5],[25]	$ 8,080
Investment, Identifier [Axis]: HOWLCO LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.98%	[7],[11],[13],[25]	11.53%	[9],[12],[14],[27]
Spread (as a percent)		6.50%	[7],[11],[13],[25]	6%	[9],[12],[14],[27]
PIK Rate	[7],[11],[13],[25]	3.50%
Principal		$ 25,778	[7],[11],[13],[25]	$ 25,162	[9],[12],[14],[27]
Cost		25,778	[7],[11],[13],[25]	25,162	[9],[12],[14],[27]
Fair value		25,494	[7],[11],[13],[25]	24,397	[9],[12],[14],[27]
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (423 COR, L.P.)
Schedule of Investments [Line Items]
Fair value		4,044		1,869
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (423 COR, LP)
Schedule of Investments [Line Items]
Fair value						1,400	1,400
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 3, L.P.)
Schedule of Investments [Line Items]
Fair value		4,472		4,225		4,106	4,331
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 4, L.P.)
Schedule of Investments [Line Items]
Fair value		$ 4,984		$ 3,773		2,796	2,332
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 GRE-LP, L.P.)
Schedule of Investments [Line Items]
Units (as a percent)	[7],[8],[44]	43.05%
Cost	[7],[8],[44]	$ 441
Fair value	[7],[8],[44]	$ 441
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 HPP-MS, L.P.)
Schedule of Investments [Line Items]
Units (as a percent)		49.26%	[7],[8],[44]	49.26%	[9],[10],[45]
Cost		$ 248	[7],[8],[44]	$ 248	[9],[10],[45]
Fair value		$ 374	[7],[8],[44]	$ 315	[9],[10],[45]
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 MH, L.P.)
Schedule of Investments [Line Items]
Units (as a percent)		49.26%	[7],[8],[29],[44]	49.26%	[9],[10],[30],[45]
Cost		$ 3,345	[7],[8],[29],[44]	$ 3,345	[9],[10],[30],[45]
Fair value		$ 8,991	[7],[8],[29],[44]	$ 6,050	[9],[10],[30],[45]
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (423 COR, L.P.)
Schedule of Investments [Line Items]
Units (as a percent)		22.93%	[7],[8],[29],[44]	22.93%	[9],[10],[30],[45]
Cost		$ 2,900	[7],[8],[29],[44]	$ 1,400	[9],[10],[30],[45]
Fair value		$ 4,044	[7],[8],[29],[44]	$ 1,869	[9],[10],[30],[45]
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (423 HAR, L.P.)
Schedule of Investments [Line Items]
Units (as a percent)		15.60%	[7],[8],[44]	15.60%	[9],[10],[45]
Cost		$ 750	[7],[8],[44]	$ 750	[9],[10],[45]
Fair value		$ 1,048	[7],[8],[44]	$ 996	[9],[10],[45]
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (HPEP 3, L.P.)
Schedule of Investments [Line Items]
Units (as a percent)		8.22%	[7],[8],[29],[44]	8.22%	[9],[10],[45]
Cost		$ 2,296	[7],[8],[29],[44]	$ 2,296	[9],[10],[45]
Fair value		$ 4,472	[7],[8],[29],[44]	$ 4,225	[9],[10],[45]
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (HPEP 4, L.P.)
Schedule of Investments [Line Items]
Units (as a percent)		11.61%	[7],[8],[44]	11.61%	[9],[10],[45]
Cost		$ 4,655	[7],[8],[44]	$ 3,773	[9],[10],[45]
Fair value		$ 4,984	[7],[8],[44]	$ 3,773	[9],[10],[45]
Investment, Identifier [Axis]: Harrison Hydra-Gen, Ltd., Common Stock
Schedule of Investments [Line Items]
Units (in shares)		107,456		107,456
Cost		$ 718		$ 718
Fair value		$ 5,220		$ 4,660		3,490	3,280
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		226	[29]	226
Cost		$ 2,850	[29]	$ 2,850
Fair value		$ 18,060	[29]	$ 17,460		17,460	17,460
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		226	[41]	226	[40]
Cost		$ 150	[41]	$ 150	[40]
Fair value		$ 950	[41]	$ 920	[40]	$ 920	920
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.48%	[25]	11.65%	[27]	11.53%
Spread (as a percent)		6%	[25]	6%	[27]	6%
Principal		$ 2,090	[25]	$ 1,974	[27]
Cost		2,088	[25]	1,972	[27]
Fair value		$ 2,090	[25]	$ 1,974	[27]	$ 3,666	3,185
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%		12.50%		12.50%
Principal		$ 45,256		$ 45,256
Cost		45,172		45,144
Fair value		$ 45,256		$ 45,256		$ 41,942	37,800
Investment, Identifier [Axis]: Houston Plating and Coatings, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		322,297	[29]	322,297	[30]
Cost		$ 2,352	[29]	$ 2,352	[30]
Fair value		$ 3,210	[29]	$ 3,340	[30]	$ 3,560	2,400
Investment, Identifier [Axis]: Houston Plating and Coatings, LLC, Unsecured Convertible Debt
Schedule of Investments [Line Items]
Total Rate		8%		8%		8%
Principal		$ 3,000		$ 3,000
Cost		3,000		3,000
Fair value		$ 2,940		$ 2,880		$ 2,830	3,000
Investment, Identifier [Axis]: Hybrid Promotions, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.81%	[5],[25]	15.91%	[6],[27]
Spread (as a percent)		8.25%	[5],[25]	8.25%	[6],[27]
PIK Rate		2%	[5],[25]	2%	[6],[27]
Principal		$ 7,236	[5],[25]	$ 7,167	[6],[27]
Cost		7,127	[5],[25]	7,031	[6],[27]
Fair value		7,196	[5],[25]	6,581	[6],[27]
Investment, Identifier [Axis]: I-45 SLF LLC, Member Units (Fully diluted 20.0%; 21.75% profits interest)
Schedule of Investments [Line Items]
Cost	[9],[10],[30]			20,200
Fair value	[9],[10],[30]			$ 13,490
Diluted, percentage (as a percent)	[9],[10]			20%
Profits, percentage (as a percent)	[9],[10]			21.75%
Investment, Identifier [Axis]: I-45 SLF LLC, Member Units (Fully diluted 20.0%; 21.75% profits interest)
Schedule of Investments [Line Items]
Fair value		$ 0		$ 13,490		$ 11,751	11,758
Diluted, percentage (as a percent)		20%				20%
Profits, percentage (as a percent)		21.75%				21.75%
Investment, Identifier [Axis]: IG Investor, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		14,400		14,400
Cost		$ 14,400		$ 14,400
Fair value		14,400		14,400		$ 15,096	0
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Principal		0	[24]	0	[26]
Cost		(31)	[24]	(35)	[26]
Fair value		$ (31)	[24]	$ (35)	[26]	$ (39)	0
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%		13%		13%
Principal		$ 36,384		$ 37,264
Cost		36,096		36,934
Fair value		$ 36,096		$ 36,934		$ 37,333	0
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		5.75%	[11],[24],[25]	5.75%	[12],[26],[27]
Principal		$ 0	[11],[24],[25]	$ 0	[12],[26],[27]
Cost		(16)	[11],[24],[25]	(20)	[12],[26],[27]
Fair value		$ 0	[11],[24],[25]	$ 0	[12],[26],[27]
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.19%	[11],[25]	10.96%	[12],[27]
Spread (as a percent)		5.75%	[11],[25]	5.50%	[12],[27]
Principal		$ 10,154	[11],[25]	$ 9,399	[12],[27]
Cost		10,062	[11],[25]	9,294	[12],[27]
Fair value		$ 10,154	[11],[25]	$ 9,399	[12],[27]
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.19%	[11],[25]	10.96%	[12],[27]
Spread (as a percent)		5.75%	[11],[25]	5.50%	[12],[27]
Principal		$ 4,928	[11],[25]	$ 4,953	[12],[27]
Cost		4,880	[11],[25]	4,899	[12],[27]
Fair value		$ 4,928	[11],[25]	$ 4,953	[12],[27]
Investment, Identifier [Axis]: INW Manufacturing, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.35%	[11],[25]	11.36%	[12],[27]
Spread (as a percent)		5.75%	[11],[25]	5.75%	[12],[27]
Principal		$ 6,986	[11],[25]	$ 6,656	[12],[27]
Cost		6,796	[11],[25]	6,544	[12],[27]
Fair value		$ 5,868	[11],[25]	$ 5,325	[12],[27]
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		16.46%	[25]	16.59%	[27]
Spread (as a percent)		9%	[25]	9%	[27]	9%
PIK Rate		2%	[25]	2%	[27]	2%
Principal		$ 1,190	[25]	$ 826	[27]
Cost		1,181	[25]	816	[27]
Fair value		$ 1,181	[25]	$ 816	[27]	$ (12)	0
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		16.46%	[25]	16.59%	[27]
Spread (as a percent)		9%	[25]	9%	[27]	9%
PIK Rate		2%	[25]	2%	[27]	2%
Principal		$ 719	[25]	$ 711	[27]
Cost		707	[25]	697	[27]
Fair value		$ 707	[25]	$ 697	[27]	$ (10)	0
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		15.46%	[25]	15.59%	[27]	15.38%
Spread (as a percent)		8%	[25]	8%	[27]	8%
PIK Rate		2%	[25]	2%	[27]	2%
Principal		$ 4,407	[25]	$ 4,362	[27]
Cost		3,607	[25]	3,430	[27]
Fair value		$ 3,607	[25]	$ 3,430	[27]	$ 3,252	0
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		17.46%	[25]	17.59%	[27]	17.38%
Spread (as a percent)		10%	[25]	10%	[27]	10%
PIK Rate		2%	[25]	2%	[27]	2%
Principal		$ 4,407	[25]	$ 4,362	[27]
Cost		3,607	[25]	3,430	[27]
Fair value		$ 3,607	[25]	$ 3,430	[27]	$ 3,252	0
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Warrants
Schedule of Investments [Line Items]
Units (in shares)		193,307	[22]	193,307	[23]
Cost		$ 2,091	[22]	$ 2,091	[23]
Fair value		$ 2,660	[22]	$ 2,091	[23]	2,091	0
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Common Equity
Schedule of Investments [Line Items]
Units (in shares)		849	[5]	849	[6]
Cost		$ 1,166	[5]	$ 1,166	[6]
Fair value		$ 1,150	[5]	$ 1,110	[6]
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.28%	[5],[25]	12.41%	[6],[27],[57]
Spread (as a percent)		7%	[5],[25]	7%	[6],[27],[57]
Principal		$ 791	[5],[25]	$ 1,581	[6],[27],[57]
Cost		718	[5],[25]	1,500	[6],[27],[57]
Fair value		$ 791	[5],[25]	$ 1,571	[6],[27],[57]
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.25%	[5],[25]	12.45%	[6],[27]
Spread (as a percent)		7%	[5],[25]	7%	[6],[27]
Principal		$ 20,663	[5],[25]	$ 20,768	[6],[27]
Cost		20,175	[5],[25]	20,217	[6],[27]
Fair value		$ 20,663	[5],[25]	$ 20,637	[6],[27]
Investment, Identifier [Axis]: Implus Footcare, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14.24%	[5],[25]	14.25%	[6],[27]
Spread (as a percent)		7.75%	[5],[25]	7.75%	[6],[27]
PIK Rate		1%	[5],[25]	1%	[6],[27]
Principal		$ 18,647	[5],[25]	$ 18,645	[6],[27]
Cost		18,640	[5],[25]	18,600	[6],[27]
Fair value		$ 17,852	[5],[25]	$ 17,334	[6],[27]
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		18,006,407	[5]	18,006,407	[6]
Cost		$ 18,300	[5]	$ 18,300	[6]
Fair value		$ 18,110	[5]	$ 17,690	[6]	18,300	0
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)	[6],[40]			900
Cost	[6],[40]			$ 900
Fair value	[6],[40]			$ 690
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)	[6],[30],[40]			144
Total Rate	[6],[30],[40]			10%
PIK Rate	[6],[30],[40]			10%
Cost	[6],[30],[40]			$ 138
Fair value	[6],[30],[40]			$ 178
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)	[6],[30],[40]			80
Total Rate	[6],[30],[40]			20%
PIK Rate	[6],[30],[40]			20%
Cost	[6],[30],[40]			$ 102
Fair value	[6],[30],[40]			$ 120
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[6],[27],[58]			12.22%
Spread (as a percent)	[6],[27],[58]			6.75%
Principal	[6],[27],[58]			$ 1,390
Cost	[6],[27],[58]			1,367
Fair value	[6],[27],[58]			$ 1,390
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[6],[27]			12.22%
Spread (as a percent)	[6],[27]			6.75%
Principal	[6],[27]			$ 19,044
Cost	[6],[27]			18,842
Fair value	[6],[27]			$ 19,044
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		87,360	[29]	80,000
Cost		$ 4,368	[29]	$ 4,000
Fair value		$ 4,368	[29]	$ 4,000		$ 4,000	0
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%		13%		13%
Principal		$ 15,500		$ 17,550
Cost		15,386		17,403
Fair value		$ 15,386		$ 17,403		$ 17,832	0
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[6],[27]			11.21%
Spread (as a percent)	[6],[27]			5.75%
Principal	[6],[27]			$ 1,504
Cost	[6],[27]			1,480
Fair value	[6],[27]			$ 1,504
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[6],[27]			11.21%
Spread (as a percent)	[6],[27]			5.75%
Principal	[6],[27]			$ 7,752
Cost	[6],[27]			7,663
Fair value	[6],[27]			$ 7,752
Investment, Identifier [Axis]: Insight Borrower Corporation, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		131,100	[5]	131,100	[6]
Cost		$ 656	[5]	$ 656	[6]
Fair value		$ 370	[5]	$ 656	[6]
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.25%	[5],[24],[25]	6.25%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(62)	[5],[24],[25]	(70)	[6],[26],[27]
Fair value		$ (62)	[5],[24],[25]	$ (70)	[6],[26],[27]
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6.25%	[5],[24],[25]	6.25%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(52)	[5],[24],[25]	(57)	[6],[26],[27]
Fair value		$ (52)	[5],[24],[25]	$ (57)	[6],[26],[27]
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.58%	[5],[25]	11.65%	[6],[27]
Spread (as a percent)		6.25%	[5],[25]	6.25%	[6],[27]
Principal		$ 14,334	[5],[25]	$ 14,406	[6],[27]
Cost		13,973	[5],[25]	14,009	[6],[27]
Fair value		$ 13,782	[5],[25]	$ 14,258	[6],[27]
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		131,569	[5]	131,569	[6]
Cost		$ 417	[5]	$ 417	[6]
Fair value		$ 90	[5]	$ 240	[6]
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.44%	[5],[25],[31]	13.53%	[6],[27],[59]
Spread (as a percent)		8%	[5],[25],[31]	8%	[6],[27],[59]
Principal		$ 790	[5],[25],[31]	$ 790	[6],[27],[59]
Cost		773	[5],[25],[31]	770	[6],[27],[59]
Fair value		$ 723	[5],[25],[31]	$ 776	[6],[27],[59]
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.43%	[5],[25]	13.55%	[6],[27]
Spread (as a percent)		8%	[5],[25]	8%	[6],[27]
Principal		$ 7,271	[5],[25]	$ 7,308	[6],[27]
Cost		7,129	[5],[25]	7,146	[6],[27]
Fair value		$ 6,651	[5],[25]	$ 7,177	[6],[27]
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.43%	[5],[25]	13.55%	[6],[27]
Spread (as a percent)		8%	[5],[25]	8%	[6],[27]
Principal		$ 2,925	[5],[25]	$ 2,940	[6],[27]
Cost		2,872	[5],[25]	2,879	[6],[27]
Fair value		$ 2,675	[5],[25]	$ 2,887	[6],[27]
Investment, Identifier [Axis]: Integral Energy Services, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		9,968	[5]	9,968	[6]
Cost		$ 1,356	[5]	$ 1,356	[6]
Fair value		$ 550	[5]	$ 160	[6]	$ 820	1,280
Investment, Identifier [Axis]: Integral Energy Services, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		3,188	[5],[29]	3,188	[6]
Total Rate		10%	[5],[29]	10%	[6]
PIK Rate		10%	[5],[29]	10%	[6]
Cost		$ 242	[5],[29]	$ 227	[6]
Fair value		$ 440	[5],[29]	$ 300	[6]
Investment, Identifier [Axis]: Integral Energy Services, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.06%	[5],[25]	13.16%	[6],[27]	13.04%
Spread (as a percent)		7.50%	[5],[25]	7.50%	[6],[27]	7.50%
Principal		$ 12,915	[5],[25]	$ 14,485	[6],[27]
Cost		12,800	[5],[25]	14,323	[6],[27]
Fair value		$ 12,701	[5],[25]	$ 13,891	[6],[27]	$ 15,575	15,769
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		2,143	[5]	2,143	[6]
Cost		$ 0	[5]	$ 0	[6]
Fair value		$ 0	[5]	$ 0	[6]
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.44%	[5],[31],[38]	15.48%	[6],[39],[60]
Spread (as a percent)		10%	[5],[31],[38]	10%	[6],[39],[60]
PIK Rate	[5],[31],[38]	15.43%
Principal		$ 1,922	[5],[31],[38]	$ 1,835	[6],[39],[60]
Cost		1,922	[5],[31],[38]	1,835	[6],[39],[60]
Fair value		$ 1,767	[5],[31],[38]	$ 1,781	[6],[39],[60]
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.44%	[5],[25],[32],[38]	12.46%	[6],[27],[33],[39]
Spread (as a percent)		7%	[5],[25],[32],[38]	7%	[6],[27],[33],[39]
PIK Rate		12.44%	[5],[25],[32],[38]	12.46%	[6],[27],[33],[39]
Principal		$ 7,313	[5],[25],[32],[38]	$ 7,313	[6],[27],[33],[39]
Cost		7,237	[5],[25],[32],[38]	7,237	[6],[27],[33],[39]
Fair value		$ 99	[5],[25],[32],[38]	$ 431	[6],[27],[33],[39]
Investment, Identifier [Axis]: Intermedia Holdings, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[12],[27]			11.47%
Spread (as a percent)	[12],[27]			6%
Principal	[12],[27]			$ 20,201
Cost	[12],[27]			20,172
Fair value	[12],[27]			$ 19,570
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[6],[27]			12%
Spread (as a percent)		6.50%	[5],[24],[25],[31]	6.50%	[6],[27]
Principal		$ 0	[5],[24],[25],[31]	$ 519	[6],[27]
Cost		(2)	[5],[24],[25],[31]	516	[6],[27]
Fair value		$ (2)	[5],[24],[25],[31]	$ 509	[6],[27]
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.98%	[5],[25]	12%	[6],[27]
Spread (as a percent)		6.50%	[5],[25]	6.50%	[6],[27]
Principal		$ 16,812	[5],[25]	$ 16,812	[6],[27]
Cost		16,767	[5],[25]	16,747	[6],[27]
Fair value		$ 16,517	[5],[25]	$ 16,515	[6],[27]
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		203,016		203,016
Cost		$ 2,756		$ 2,756
Fair value		$ 2,680		2,680		$ 2,756	1,798
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		711,200
Cost		$ 711
Fair value		$ 711		$ 0
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.50%		13.50%		13.50%
Principal		$ 4,514		$ 4,514
Cost		4,490		4,487
Fair value		$ 4,490		$ 4,487		$ 4,484	4,500
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%		13.50%		13.50%
Principal		$ 2,940		$ 2,940
Cost		2,924		2,922
Fair value		$ 2,924		$ 2,922		$ 3,119	3,130
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.50%		13.50%		13.50%
Principal		$ 8,944		$ 8,944
Cost		8,944		8,944
Fair value		$ 8,944		$ 8,944		$ 8,944	8,944
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		13.50%		13.50%		13.50%
Principal		$ 17,624		$ 19,624
Cost		17,529		19,503
Fair value		$ 17,529		$ 19,503		$ 19,488	19,559
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate		13.50%		13.50%		13.50%
Principal		$ 10,162		$ 10,562
Cost		9,918		10,273
Fair value		$ 9,918		$ 10,273		$ 10,819	0
Investment, Identifier [Axis]: Isagenix International, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		198,743	[11]	186,322	[12]
Cost		$ 0	[11]	$ 0	[12]
Fair value		$ 0	[11]	$ 0	[12]
Investment, Identifier [Axis]: Isagenix International, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.93%	[11],[25]	11.04%	[12],[27]
Spread (as a percent)		6.50%	[11],[25]	5.50%	[12],[27]
PIK Rate		9.43%	[11],[25]	8.54%	[12],[27]
Principal		$ 3,017	[11],[25]	$ 2,615	[12],[27]
Cost		2,784	[11],[25]	2,374	[12],[27]
Fair value		$ 2,655	[11],[25]	$ 2,301	[12],[27]
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[5],[24],[25]	6.50%
Principal	[5],[24],[25]	$ 0
Cost	[5],[24],[25]	(9)
Fair value	[5],[24],[25]	$ (9)
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[5],[25]	11.10%
Spread (as a percent)	[5],[25]	5.50%
Principal	[5],[25]	$ 1,735
Cost	[5],[25]	1,703
Fair value	[5],[25]	$ 1,703
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[5],[25]	12.10%
Spread (as a percent)	[5],[25]	6.50%
Principal	[5],[25]	$ 1,735
Cost	[5],[25]	1,703
Fair value	[5],[25]	$ 1,703
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[5],[25]	13.10%
Spread (as a percent)	[5],[25]	7.50%
Principal	[5],[25]	$ 1,735
Cost	[5],[25]	1,703
Fair value	[5],[25]	$ 1,703
Investment, Identifier [Axis]: JDC Power Services, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[5],[24],[25]	6.75%
Principal	[5],[24],[25]	$ 0
Cost	[5],[24],[25]	(153)
Fair value	[5],[24],[25]	$ (153)
Investment, Identifier [Axis]: JDC Power Services, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[5],[25]	12.08%
Spread (as a percent)	[5],[25]	6.75%
Principal	[5],[25]	$ 52,789
Cost	[5],[25]	51,491
Fair value	[5],[25]	$ 51,491
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		1,684,211	[5]	1,684,211	[6]
Cost		$ 1,684	[5]	$ 1,684	[6]
Fair value		$ 1,120	[5]	$ 1,710	[6]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.83%	[5],[25],[31]	11.64%	[6],[27],[61]
Spread (as a percent)		6.25%	[5],[25],[31]	6%	[6],[27],[61]
Principal		$ 8,421	[5],[25],[31]	$ 3,137	[6],[27],[61]
Cost		8,337	[5],[25],[31]	3,036	[6],[27],[61]
Fair value		$ 8,057	[5],[25],[31]	$ 3,137	[6],[27],[61]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.83%	[5],[25]	11.61%	[6],[27]
Spread (as a percent)		6.25%	[5],[25]	6%	[6],[27]
Principal		$ 35,526	[5],[25]	$ 36,000	[6],[27]
Cost		35,161	[5],[25]	35,562	[6],[27]
Fair value		$ 33,990	[5],[25]	$ 36,000	[6],[27]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[5],[25]	11.83%
Spread (as a percent)	[5],[25]	6.25%
Principal	[5],[25]	$ 3,326
Cost	[5],[25]	3,240
Fair value	[5],[25]	$ 3,182
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		2,826,667	[5]	2,826,667	[6]
Cost		$ 110	[5]	$ 110	[6]
Fair value		$ 870	[5]	$ 1,090	[6]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.47%	[5],[25],[28]	12.46%	[6],[27],[62]
Spread (as a percent)		7%	[5],[25],[28]	7%	[6],[27],[62]
Principal		$ 825	[5],[25],[28]	$ 835	[6],[27],[62]
Cost		820	[5],[25],[28]	823	[6],[27],[62]
Fair value		$ 823	[5],[25],[28]	$ 835	[6],[27],[62]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.46%	[5],[25]	12.46%	[6],[27]
Spread (as a percent)		10%	[5],[25]	7%	[6],[27]
Principal		$ 425	[5],[25]	$ 1,974	[6],[27]
Cost		415	[5],[25]	1,974	[6],[27]
Fair value		$ 425	[5],[25]	$ 1,974	[6],[27]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[5],[25]	12.48%
Spread (as a percent)	[5],[25]	7%
Principal	[5],[25]	$ 1,922
Cost	[5],[25]	1,922
Fair value	[5],[25]	$ 1,918
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		627	[29]	627	[30]
Cost		$ 811	[29]	$ 811	[30]
Fair value		$ 12,330	[29]	$ 12,420	[30]	$ 13,510	14,970
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.75%	[24],[25]	6.75%	[26],[39]	6.75%
Principal		$ 0	[24],[25]	$ 0	[26],[39]
Cost		0	[24],[25]	0	[26],[39]
Fair value		$ 0	[24],[25]	$ 0	[26],[39]	$ 0	0
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15%	[25]	15.25%	[27],[39]	15%
Spread (as a percent)		6.75%	[25]	6.75%	[27],[39]	6.75%
Principal		$ 1,800	[25]	$ 1,998	[27],[39]
Cost		1,800	[25]	1,998	[27],[39]
Fair value		$ 1,800	[25]	$ 1,998	[27],[39]	$ 2,450	2,450
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)	[12]			472,579
Cost	[12]			$ 4,429
Fair value	[12]			$ 0
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock 1
Schedule of Investments [Line Items]
Units (in shares)	[11]	472,579
Cost	[11]	$ 4,429
Fair value	[11]	$ 0
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock 2
Schedule of Investments [Line Items]
Units (in shares)	[11]	5,461,019
Cost	[11]	$ 200
Fair value	[11]	$ 200
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		21.59%	[11],[25],[32]	23.63%	[12],[27],[33]
Spread (as a percent)		16%	[11],[25],[32]	18%	[12],[27],[33]
PIK Rate		21.59%	[11],[25],[32]	23.63%	[12],[27],[33]
Principal		$ 1,134	[11],[25],[32]	$ 2,431	[12],[27],[33]
Cost		1,134	[11],[25],[32]	2,431	[12],[27],[33]
Fair value		$ 0	[11],[25],[32]	$ 2,074	[12],[27],[33]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		21.59%	[11],[25],[32]	21.63%	[12],[27],[33]
Spread (as a percent)		16%	[11],[25],[32]	16%	[12],[27],[33]
PIK Rate		21.59%	[11],[25],[32]	21.63%	[12],[27],[33]
Principal		$ 1,091	[11],[25],[32]	$ 2,057	[12],[27],[33]
Cost		1,091	[11],[25],[32]	2,038	[12],[27],[33]
Fair value		$ 0	[11],[25],[32]	$ 143	[12],[27],[33]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		14.35%	[11],[25]	21.63%	[12],[27],[33]
Spread (as a percent)		8.75%	[11],[25]	16%	[12],[27],[33]
PIK Rate		6%	[11],[25]	21.63%	[12],[27],[33]
Principal		$ 1,975	[11],[25]	$ 1,978	[12],[27],[33]
Cost		1,975	[11],[25]	1,959	[12],[27],[33]
Fair value		$ 1,975	[11],[25]	$ 137	[12],[27],[33]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[25]	14.35%
Spread (as a percent)	[11],[25]	8.75%
PIK Rate	[11],[25]	14.35%
Principal	[11],[25]	$ 1,200
Cost	[11],[25]	1,200
Fair value	[11],[25]	$ 1,200
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		3,310	[29]	3,310
Cost		$ 3,635	[29]	$ 3,635
Fair value		13,070	[29]	9,620		$ 6,550	5,540
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)						11.50%
Principal		0	[24]	0	[26]
Cost		(15)	[24]	(18)	[26]
Fair value		$ 0	[24]	$ 0	[26]	$ 0	0
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15%		15%		16.75%
Spread (as a percent)						11.50%
Principal		$ 21,507		$ 24,207
Cost		21,395		24,066
Fair value		$ 21,507		$ 24,207		$ 9,838	9,999
Investment, Identifier [Axis]: JorVet Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		107,406	[29]	107,406	[30]
Cost		$ 10,741	[29]	$ 10,741	[30]
Fair value		$ 10,741	[29]	$ 10,741	[30]	$ 10,741	10,741
Investment, Identifier [Axis]: JorVet Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12%		12%		12%
Principal		$ 25,003		$ 25,650
Cost		24,866		25,483
Fair value		$ 24,866		$ 25,483		$ 25,458	25,432
Investment, Identifier [Axis]: KBK Industries, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		325	[29]	325	[30]
Cost		$ 783	[29]	$ 783	[30]
Fair value		$ 24,820	[29]	$ 22,770	[30]	$ 12,360	15,570
Investment, Identifier [Axis]: KBK Industries, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		9%		9%		9%
Principal		$ 4,300		$ 4,700
Cost		4,268		4,662
Fair value		$ 4,300		$ 4,700		$ 5,300	0
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.73%	[5],[25]	14.75%	[6],[27]
Spread (as a percent)		7.25%	[5],[25]	9.25%	[6],[27]
Principal		$ 1,028	[5],[25]	$ 1,034	[6],[27]
Cost		1,002	[5],[25]	1,002	[6],[27]
Fair value		$ 968	[5],[25]	$ 943	[6],[27]
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.73%	[5],[25]	14.75%	[6],[27]
Spread (as a percent)		7.25%	[5],[25]	9.25%	[6],[27]
Principal		$ 7,410	[5],[25]	$ 7,448	[6],[27]
Cost		7,340	[5],[25]	7,365	[6],[27]
Fair value		$ 6,974	[5],[25]	$ 6,782	[6],[27]
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		800	[29],[41]	800	[40]
Cost		$ 992	[29],[41]	$ 992	[40]
Fair value		$ 2,490	[29],[41]	$ 2,730	[40]	2,780	2,850
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		581		581
Cost		$ 12,240		$ 12,240
Fair value		$ 11,930		$ 9,690		$ 7,730	7,220
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%		12%		12%
Principal		$ 17,399		$ 19,799
Cost		17,382		19,774
Fair value		$ 17,382		$ 19,774		$ 20,569	20,374
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9%		9%		9%
Principal		$ 3,982		$ 3,840
Cost		3,948		3,805
Fair value		$ 3,948		$ 3,805		$ 3,824	3,842
Investment, Identifier [Axis]: LKCM Headwater Investments I, L.P., LP Interests
Schedule of Investments [Line Items]
Units (as a percent)		2.27%	[7],[8],[29],[44]	2.27%	[9],[10],[45]
Cost		$ 1,746	[7],[8],[29],[44]	$ 1,746	[9],[10],[45]
Fair value		$ 2,841	[7],[8],[29],[44]	$ 2,988	[9],[10],[45]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.68%	[5],[25]	12.71%	[6],[27]
Spread (as a percent)		7.25%	[5],[25]	7.25%	[6],[27]
Principal		$ 8,623	[5],[25]	$ 7,960	[6],[27]
Cost		8,530	[5],[25]	7,940	[6],[27]
Fair value		$ 8,623	[5],[25]	$ 7,960	[6],[27]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.68%	[5],[25]	12.71%	[6],[27]
Spread (as a percent)		7.25%	[5],[25]	7.25%	[6],[27]
Principal		$ 5,512	[5],[25]	$ 5,246	[6],[27]
Cost		5,452	[5],[25]	5,231	[6],[27]
Fair value		$ 5,512	[5],[25]	$ 5,246	[6],[27]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.68%	[5],[25]	12.71%	[6],[27]
Spread (as a percent)		7.25%	[5],[25]	7.25%	[6],[27]
Principal		$ 2,892	[5],[25]	$ 2,803	[6],[27]
Cost		2,861	[5],[25]	2,796	[6],[27]
Fair value		$ 2,892	[5],[25]	$ 2,803	[6],[27]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		12.68%	[5],[25]	12.71%	[6],[27]
Spread (as a percent)		7.25%	[5],[25]	7.25%	[6],[27]
Principal		$ 1,124	[5],[25]	$ 1,056	[6],[27]
Cost		1,112	[5],[25]	1,053	[6],[27]
Fair value		$ 1,124	[5],[25]	$ 1,056	[6],[27]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 5
Schedule of Investments [Line Items]
Total Rate		12.67%	[5],[25]	12.71%	[6],[27]
Spread (as a percent)		7.25%	[5],[25]	7.25%	[6],[27]
Principal		$ 11,382	[5],[25]	$ 10,694	[6],[27]
Cost		11,256	[5],[25]	10,658	[6],[27]
Fair value		$ 11,382	[5],[25]	$ 10,694	[6],[27]
Investment, Identifier [Axis]: LLFlex, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14.98%	[5],[25]	15.54%	[6],[27]
Spread (as a percent)		9%	[5],[25]	9%	[6],[27]
PIK Rate		0.50%	[5],[25]	1%	[6],[27]
Principal		$ 4,408	[5],[25]	$ 4,428	[6],[27]
Cost		4,335	[5],[25]	4,338	[6],[27]
Fair value		$ 3,900	[5],[25]	$ 3,979	[6],[27]
Investment, Identifier [Axis]: Lightbox Holdings, L.P., Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.46%	[11]	10.62%	[12]
Spread (as a percent)		5%	[11]	5%	[12]
Principal		$ 15,607	[11]	$ 14,325	[12]
Cost		15,504	[11]	14,237	[12]
Fair value		$ 15,139	[11]	$ 13,895	[12]
Investment, Identifier [Axis]: Logix Acquisition Company, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.25%	[5],[25]	13.25%	[6],[27]
Spread (as a percent)		4.75%	[5],[25]	4.75%	[6],[27]
Principal		$ 24,809	[5],[25]	$ 23,921	[6],[27]
Cost		24,269	[5],[25]	23,082	[6],[27]
Fair value		$ 19,266	[5],[25]	$ 18,778	[6],[27]
Investment, Identifier [Axis]: Looking Glass Investments, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		3	[7],[8]	3	[9],[10]
Cost		$ 125	[7],[8]	$ 125	[9],[10]
Fair value		$ 25	[7],[8]	$ 25	[9],[10]
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[12],[27]			11.46%
Spread (as a percent)	[12],[27]			6%
Principal	[12],[27]			$ 2,803
Cost	[12],[27]			2,785
Fair value	[12],[27]			$ 2,803
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[12],[27]			11.46%
Spread (as a percent)	[12],[27]			6%
Principal	[12],[27]			$ 3,925
Cost	[12],[27]			3,899
Fair value	[12],[27]			$ 3,925
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[12],[27]			11.46%
Spread (as a percent)	[12],[27]			6%
Principal	[12],[27]			$ 3,464
Cost	[12],[27]			3,440
Fair value	[12],[27]			$ 3,464
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[12],[27]			11.46%
Spread (as a percent)	[12],[27]			6%
Principal	[12],[27]			$ 7,796
Cost	[12],[27]			7,727
Fair value	[12],[27]			$ 7,796
Investment, Identifier [Axis]: MH Corbin Holding LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		66,000		66,000
Cost		$ 4,400		$ 4,400
Fair value		$ 330		$ 330		0	0
Investment, Identifier [Axis]: MH Corbin Holding LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		4,000		4,000
Cost		$ 6,000		$ 6,000
Fair value		$ 0		$ 0		$ 0	0
Investment, Identifier [Axis]: MH Corbin Holding LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14%		13%	[39]	13%
Principal		$ 5,240		$ 5,400	[39]
Cost		5,240		5,400	[39]
Fair value		$ 4,862		$ 5,022	[39]	$ 5,503	4,548
Investment, Identifier [Axis]: MS Private Loan Fund I, LP, LP Interests
Schedule of Investments [Line Items]
Units (as a percent)		14.51%	[7],[8],[29],[44]	14.51%	[9],[10],[30],[45]
Cost		$ 14,250	[7],[8],[29],[44]	$ 14,250	[9],[10],[30],[45]
Fair value		$ 14,469	[7],[8],[29],[44]	14,527	[9],[10],[30],[45]
Investment, Identifier [Axis]: MS Private Loan Fund I, LP, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7],[8]	5%
Principal		$ 7,000	[7],[8]	0	[9],[10],[26]
Cost		7,000	[7],[8]	0	[9],[10],[26]
Fair value		$ 7,000	[7],[8]	$ 0	[9],[10],[26]
Investment, Identifier [Axis]: MS Private Loan Fund II, LP, LP Interests
Schedule of Investments [Line Items]
Units (as a percent)		14.12%	[7],[8],[29],[44]	13.37%	[9],[10],[45]
Cost		$ 3,725	[7],[8],[29],[44]	$ 1,561	[9],[10],[45]
Fair value		$ 3,810	[7],[8],[29],[44]	$ 1,561	[9],[10],[45]
Investment, Identifier [Axis]: MS Private Loan Fund II, LP, Secured Debt
Schedule of Investments [Line Items]
Total Rate		8.88%	[7],[8]	8.88%	[9],[10],[27]
Spread (as a percent)		3.50%	[7],[8]	3.50%	[9],[10],[27]
Principal		$ 49,500	[7],[8]	$ 23,500	[9],[10],[27]
Cost		49,408	[7],[8]	23,367	[9],[10],[27]
Fair value		$ 49,408	[7],[8]	$ 23,367	[9],[10],[27]
Investment, Identifier [Axis]: MS Private Loan Fund, LP Interests
Schedule of Investments [Line Items]
Fair value						14,635	14,833
Investment, Identifier [Axis]: MS Private Loan Fund, Secured Debt 1
Schedule of Investments [Line Items]
Fair value						0	0
Investment, Identifier [Axis]: MS Private Loan Fund, Secured Debt 2
Schedule of Investments [Line Items]
Fair value						0	0
Investment, Identifier [Axis]: MSC Adviser I, LLC, Member Units
Schedule of Investments [Line Items]
Units (as a percent)		100%	[29],[63]	100%	[30],[64]
Cost		$ 29,500	[29],[63]	$ 29,500	[30],[64]
Fair value		$ 186,560	[29],[63]	$ 174,063	[30],[64]	133,970	122,930
Investment, Identifier [Axis]: MSC Income Fund, Inc., Common Equity
Schedule of Investments [Line Items]
Units (in shares)		1,919,595	[7],[8],[29]	1,290,267	[9],[10],[30]
Cost		$ 15,000	[7],[8],[29]	$ 10,000	[9],[10],[30]
Fair value		$ 14,894	[7],[8],[29]	$ 10,025	[9],[10],[30]	2,688	753
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.75%	[5],[24],[25]	6.75%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(21)	[5],[24],[25]	(28)	[6],[26],[27]
Fair value		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.99%	[5],[25]	12.28%	[6],[27]
Spread (as a percent)		7.50%	[5],[25]	6.75%	[6],[27]
Principal		$ 14,726	[5],[25]	$ 15,049	[6],[27]
Cost		14,623	[5],[25]	14,914	[6],[27]
Fair value		$ 14,726	[5],[25]	$ 15,049	[6],[27]
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[5],[25]	12.99%
Spread (as a percent)	[5],[25]	7.50%
Principal	[5],[25]	$ 4,500
Cost	[5],[25]	4,386
Fair value	[5],[25]	$ 4,500
Investment, Identifier [Axis]: Market Force Information, LLC, Member Units
Schedule of Investments [Line Items]
Fair value						$ 0	0
Investment, Identifier [Axis]: Market Force Information, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)						11%
Fair value						$ 0	6,090
Investment, Identifier [Axis]: Market Force Information, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Fair value						0	1,610
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Common Stock
Schedule of Investments [Line Items]
Fair value						$ 1,400	1,537
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Preferred Equity
Schedule of Investments [Line Items]
Total Rate						8%
PIK Rate						8%
Fair value						$ 6,245	6,010
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Fair value						$ 0	0
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate						12.75%
Fair value						$ 23,599	23,576
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		1,537,219	[29]	1,537,219
Cost		$ 1,537	[29]	$ 1,537
Fair value		$ 3,070	[29]	$ 1,500
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		5,915,585	[29]	5,915,585	[30]
Total Rate		8%	[29]	8%	[30]
PIK Rate		8%	[29]	8%	[30]
Cost		$ 5,916	[29]	$ 6,035	[30]
Fair value		6,152	[29]	6,035	[30]
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Principal		0	[24]	0	[26]
Cost		0	[24]	0	[26]
Fair value		$ 0	[24]	$ 0	[26]
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.75%		12.75%
Principal		$ 22,657		$ 23,802
Cost		22,508		23,623
Fair value		$ 22,508		$ 23,623
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.25%	[5],[24],[25]	6.25%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(45)	[5],[24],[25]	(51)	[6],[26],[27]
Fair value		$ (45)	[5],[24],[25]	$ (51)	[6],[26],[27]
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.42%	[5],[25]	11.46%	[6],[27]
Spread (as a percent)		6%	[5],[25]	6%	[6],[27]
Principal		$ 21,448	[5],[25]	$ 22,168	[6],[27]
Cost		21,171	[5],[25]	21,855	[6],[27]
Fair value		$ 21,448	[5],[25]	$ 22,168	[6],[27]
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.56%	[5],[25]	12.52%	[6],[27]
Spread (as a percent)		7%	[5],[25]	7%	[6],[27]
Principal		$ 22,495	[5],[25]	$ 18,152	[6],[27]
Cost		22,139	[5],[25]	17,883	[6],[27]
Fair value		$ 22,135	[5],[25]	$ 17,524	[6],[27]
Investment, Identifier [Axis]: Mini Melts of America, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		459,657	[5]	459,657	[6]
Cost		$ 460	[5]	$ 460	[6]
Fair value		$ 460	[5]	$ 460	[6]
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[5],[25],[31]	11.58%
Spread (as a percent)		6.25%	[5],[25],[31]	6.25%	[6],[26],[27]
Principal		$ 1,356	[5],[25],[31]	$ 0	[6],[26],[27]
Cost		1,318	[5],[25],[31]	(42)	[6],[26],[27]
Fair value		$ 1,356	[5],[25],[31]	$ (42)	[6],[26],[27]
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[5],[25],[28]	11.59%
Spread (as a percent)		6.25%	[5],[25],[28]	6.25%	[6],[26],[27]
Principal		$ 1,034	[5],[25],[28]	$ 0	[6],[26],[27]
Cost		1,008	[5],[25],[28]	(16)	[6],[26],[27]
Fair value		$ 1,034	[5],[25],[28]	$ (16)	[6],[26],[27]
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.60%	[5],[25]	10.64%	[6],[27]
Spread (as a percent)		5.25%	[5],[25]	5.25%	[6],[27]
Principal		$ 4,929	[5],[25]	$ 4,941	[6],[27]
Cost		4,824	[5],[25]	4,825	[6],[27]
Fair value		$ 4,929	[5],[25]	$ 4,825	[6],[27]
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		12.60%	[5],[25]	12.64%	[6],[27]
Spread (as a percent)		7.25%	[5],[25]	7.25%	[6],[27]
Principal		$ 4,929	[5],[25]	$ 4,941	[6],[27]
Cost		4,820	[5],[25]	4,820	[6],[27]
Fair value		$ 4,929	[5],[25]	$ 4,820	[6],[27]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		44,445,814	[5],[7],[13]	44,445,814	[6],[9],[14]
Cost		$ 889	[5],[7],[13]	$ 889	[6],[9],[14]
Fair value		$ 678	[5],[7],[13]	$ 678	[6],[9],[14]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		14%	[5],[7],[13]	14%	[6],[9],[14]
PIK Rate		4%	[5],[7],[13]	4%	[6],[9],[14]
Principal		$ 3,968	[5],[7],[13]	$ 3,889	[6],[9],[14]
Cost		3,925	[5],[7],[13]	3,839	[6],[9],[14]
Fair value		$ 3,901	[5],[7],[13]	$ 3,938	[6],[9],[14]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14%	[5],[7],[13]	14%	[6],[9],[14]
PIK Rate		4%	[5],[7],[13]	4%	[6],[9],[14]
Principal		$ 10,418	[5],[7],[13]	$ 10,211	[6],[9],[14]
Cost		10,296	[5],[7],[13]	10,068	[6],[9],[14]
Fair value		$ 11,060	[5],[7],[13]	$ 11,164	[6],[9],[14]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		14%	[5],[7],[13]	14%	[6],[9],[14]
PIK Rate		4%	[5],[7],[13]	4%	[6],[9],[14]
Principal		$ 17,563	[5],[7],[13]	$ 17,213	[6],[9],[14]
Cost		17,370	[5],[7],[13]	16,987	[6],[9],[14]
Fair value		$ 17,563	[5],[7],[13]	$ 17,213	[6],[9],[14]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Unsecured Debt
Schedule of Investments [Line Items]
Total Rate	[5],[7],[13]	8%
PIK Rate	[5],[7],[13]	8%
Principal	[5],[7],[13]	$ 163
Cost	[5],[7],[13]	163
Fair value	[5],[7],[13]	$ 163
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		5,873	[29]	5,873	[30]
Cost		$ 2,720	[29]	$ 2,720	[30]
Fair value		26,100	[29]	26,390	[30]	27,150	22,830
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Principal		0	[24]	0	[26]
Cost		0	[24]	0	[26]
Fair value		$ 0	[24]	$ 0	[26]	$ 0	0
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		10%		10%
Principal		$ 5,746		$ 5,746
Cost		5,727		5,746
Fair value		$ 5,746		$ 5,746		$ 5,746	5,746
Investment, Identifier [Axis]: NAPCO Precast, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		2,955		2,955
Cost		$ 2,975		$ 2,975
Fair value		$ 10,380		11,730		12,710	11,830
Investment, Identifier [Axis]: NBG Acquisition Inc, Secured Debt
Schedule of Investments [Line Items]
Principal	[12],[33]			3,849
Cost	[12],[33]			3,834
Fair value	[12],[33]			$ 115
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		65,962		65,962
Cost		$ 114		$ 114
Fair value		50		53		3,865	4,615
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 1.1
Schedule of Investments [Line Items]
Fair value		$ 1,389		1,466
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		65,962
Cost		$ 3,603		3,603	[30]
Fair value		1,389		1,466	[30]	$ 145	175
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 2.1
Schedule of Investments [Line Items]
Fair value		$ 50		$ 53
Investment, Identifier [Axis]: NRP Jones, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12%		12%		12%
Principal		$ 2,080		$ 2,080
Cost		2,080		2,080
Fair value		$ 2,080		$ 2,080		$ 2,080	2,080
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		6,987	[29]	6,987	[30]
Cost		$ 6,987	[29]	$ 6,987	[30]
Fair value		$ 19,410	[29]	$ 15,020	[30]	$ 12,790	7,700
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[25]	12.48%
Spread (as a percent)		7%	[25]	7%	[26],[27]	7%
Principal		$ 1,250	[25]	$ 0	[26],[27]
Cost		1,242	[25]	0	[26],[27]
Fair value		1,250	[25]	$ 0	[26],[27]	$ 0	0
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				12%		12%
Principal		0	[24]	$ 25,794
Cost		(198)	[24]	25,673
Fair value		$ 0	[24]	$ 25,794		$ 21,294	20,094
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.50%		12%		12%
Principal		$ 62,200		$ 10,500
Cost		62,060		10,456
Fair value		62,200		10,500		$ 10,500	10,500
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 3.1
Schedule of Investments [Line Items]
Fair value		$ 0		10,500
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		12.50%
Fair value		$ 62,200		0
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Fair value		$ 0		0
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		365
Cost		$ 12,120
Fair value		$ 12,120		0
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[25]	11.88%
Spread (as a percent)	[25]	6.50%
Principal	[25]	$ 10,974
Cost	[25]	10,946
Fair value		$ 10,946	[25]	0
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%
Principal		$ 24,800
Cost		24,556
Fair value		$ 24,556		$ 0
Investment, Identifier [Axis]: NexRev LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		103,144,186	[29]	103,144,186	[30]
Cost		$ 8,213	[29]	$ 8,213	[30]
Fair value		$ 8,210	[29]	6,350	[30]	3,450	1,110
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10%
Principal		$ 1,600		0	[26]
Cost		1,600		0	[26]
Fair value		$ 1,600		$ 0	[26]	$ 0	0
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		10%		10%
Principal		$ 9,811		$ 9,811
Cost		9,777		9,751
Fair value		$ 9,811		$ 9,751		$ 8,368	8,477
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[5],[24],[25]	7%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(7)	[5],[24],[25]	(9)	[6],[26],[27]
Fair value		$ (7)	[5],[24],[25]	$ (8)	[6],[26],[27]
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[5],[25]	12.45%
Spread (as a percent)		7%	[5],[25]	7%	[6],[26],[27]
Principal		$ 28,605	[5],[25]	$ 0	[6],[26],[27]
Cost		28,319	[5],[25]	0	[6],[26],[27]
Fair value		$ 28,605	[5],[25]	$ 0	[6],[26],[27]
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[6],[27]			12.54%
Spread (as a percent)	[6],[27]			7%
Principal	[6],[27]			$ 20,467
Cost	[6],[27]			20,255
Fair value	[6],[27]			$ 20,467
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[6],[27]			12.52%
Spread (as a percent)	[6],[27]			7%
Principal	[6],[27]			$ 7,222
Cost	[6],[27]			7,089
Fair value	[6],[27]			$ 7,222
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		2,062		2,062
Cost		$ 2,062		$ 2,062
Fair value		5,150		5,150		8,380	8,040
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Fair value		$ 10,200		$ 9,240
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		406		406
Cost		$ 10,200		$ 10,200
Fair value		10,200		9,240		$ 5,150	5,150
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Fair value		$ 5,150		$ 5,150
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.98%	[25]	11.98%	[27]	11.75%
Spread (as a percent)		6.50%	[25]	6.50%	[27]	6.50%
Principal		$ 3,600	[25]	$ 3,600	[27]
Cost		3,600	[25]	3,600	[27]
Fair value		$ 3,600	[25]	$ 3,600	[27]	$ 4,399	4,399
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%		12%		12%
Principal		$ 18,440		$ 18,440
Cost		18,432		18,426
Fair value		$ 18,432		$ 18,426		$ 18,420	18,414
Investment, Identifier [Axis]: OMi Topco, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		900	[29]	900	[30]
Cost		$ 1,080	[29]	$ 1,080	[30]
Fair value		$ 48,280	[29]	$ 36,380	[30]	$ 29,310	22,810
Investment, Identifier [Axis]: OMi Topco, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12%		12%		12%
Principal		$ 12,000		$ 12,750
Cost		11,948		12,682
Fair value		$ 12,000		$ 12,750		$ 14,250	15,750
Investment, Identifier [Axis]: Obra Capital, Inc. (f/k/a Vida Capital, Inc.), Secured Debt
Schedule of Investments [Line Items]
Total Rate	[12]			11.47%
Spread (as a percent)	[12]			6%
Principal	[12]			$ 17,373
Cost	[12]			16,558
Fair value	[12]			$ 14,897
Investment, Identifier [Axis]: Obra Capital, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[5],[24],[25]	7.50%
Principal	[5],[24],[25]	$ 0
Cost	[5],[24],[25]	(4)
Fair value	[5],[24],[25]	$ (4)
Investment, Identifier [Axis]: Obra Capital, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[5],[25]	12.95%
Spread (as a percent)	[5],[25]	7.50%
Principal	[5],[25]	$ 26,352
Cost	[5],[25]	25,575
Fair value	[5],[25]	$ 25,575
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Common Stock
Schedule of Investments [Line Items]
Units (in shares)		635		635
Cost		$ 830		$ 830
Fair value		$ 0		$ 0		$ 0	0
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Preferred Stock
Schedule of Investments [Line Items]
Units (in shares)		912		912
Total Rate		7%		7%		7%
PIK Rate		7%		7%		7%
Cost		$ 1,981		$ 1,981
Fair value		$ 0		$ 0		$ 0	0
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%	[32]	12%	[33]	12%
PIK Rate		12%	[32]	12%	[33]	12%
Principal		$ 4,415	[32]	$ 4,415	[33]
Cost		4,415	[32]	4,415	[33]
Fair value		$ 987	[32]	1,493	[33]	$ 441	569
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 1.1
Schedule of Investments [Line Items]
Total Rate		12%
PIK Rate		12%
Fair value		$ 215		$ 326
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%	[32]	12%	[33]	12%
PIK Rate		12%	[32]	12%	[33]	12%
Principal		$ 2,116	[32]	$ 2,116	[33]
Cost		2,116	[32]	2,116	[33]
Fair value		$ 473	[32]	716	[33]	$ 450	580
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		12%
PIK Rate		12%
Fair value		$ 220		$ 332
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12%	[32]	12%	[33]	12%
PIK Rate		12%	[32]	12%	[33]	12%
Principal		$ 983	[32]	$ 983	[33]
Cost		983	[32]	983	[33]
Fair value		$ 220	[32]	332	[33]	$ 969	1,249
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 3.1
Schedule of Investments [Line Items]
Total Rate		12%
PIK Rate		12%
Fair value		$ 473		$ 716
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		12%	[32]	12%	[33]	12%
PIK Rate		12%	[32]	12%	[33]	12%
Principal		$ 964	[32]	$ 964	[33]
Cost		964	[32]	964	[33]
Fair value		$ 215	[32]	326	[33]	$ 2,022	2,606
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 4.1
Schedule of Investments [Line Items]
Total Rate		12%
PIK Rate		12%
Fair value		$ 987		$ 1,493
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Unsecured Debt
Schedule of Investments [Line Items]
Total Rate		10%	[32]	10%	[33]	10%
PIK Rate		10%	[32]	10%	[33]	10%
Principal		$ 305	[32]	$ 305	[33]
Cost		305	[32]	305	[33]
Fair value		$ 305	[32]	$ 305	[33]	$ 305	305
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Warrants
Schedule of Investments [Line Items]
Units (in shares)		4,699	[22]	4,699	[23]
Cost		$ 1,089	[22]	$ 1,089	[23]
Fair value		$ 0	[22]	$ 0	[23]	0	0
Investment, Identifier [Axis]: OnPoint, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[5],[25]	12.33%
Spread (as a percent)	[5],[25]	7%
Principal	[5],[25]	$ 3,880
Cost	[5],[25]	3,845
Fair value	[5],[25]	$ 3,845
Investment, Identifier [Axis]: Oneliance, LLC, Preferred Stock
Schedule of Investments [Line Items]
Units (in shares)		1,128		1,128
Cost		$ 1,128		$ 1,128
Fair value		$ 1,650		$ 1,128		$ 1,128	1,056
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[25]	15.48%
Spread (as a percent)	[25]	10%
Principal	[25]	$ 5,200
Cost	[25]	5,178
Fair value	[25]	$ 5,200
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		10%		11%	[26],[27],[39]	11%
Principal	[26],[27],[39]			$ 0
Cost	[26],[27],[39]			0
Fair value		$ 0		$ 0	[26],[27],[39]	$ 0	0
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.48%		16.48%	[27]	16.25%
Spread (as a percent)		10%		11%	[27]	11%
Principal	[27]			$ 5,440
Cost	[27]			5,411
Fair value		$ 5,200		$ 5,350	[27]	$ 5,424	5,559
Investment, Identifier [Axis]: Orttech Holdings, LLC, Preferred Stock
Schedule of Investments [Line Items]
Units (in shares)		10,000	[29],[41]	10,000	[30],[40]
Cost		$ 10,000	[29],[41]	$ 10,000	[30],[40]
Fair value		$ 15,060	[29],[41]	$ 17,050	[30],[40]	$ 16,560	11,750
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		11%	[24],[25]	11%	[26],[27]	11%
Principal		$ 0	[24],[25]	$ 0	[26],[27]
Cost		0	[24],[25]	0	[26],[27]
Fair value		$ 0	[24],[25]	$ 0	[26],[27]	$ 0	0
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		16.48%	[25]	16.48%	[27]	16.25%
Spread (as a percent)		11%	[25]	11%	[27]	11%
Principal		$ 21,960	[25]	$ 22,040	[27]
Cost		21,868	[25]	21,925	[27]
Fair value		21,960	[25]	22,040	[27]	$ 22,800	23,429
Investment, Identifier [Axis]: Ospemifene Royalty Sub LLC, Secured Debt
Schedule of Investments [Line Items]
Principal		4,421	[5],[32]	4,443	[6],[33]
Cost		4,421	[5],[32]	4,443	[6],[33]
Fair value		35	[5],[32]	57	[6],[33]
Investment, Identifier [Axis]: Other, Affiliate Investments
Schedule of Investments [Line Items]
Fair value		0		0		0	0
Investment, Identifier [Axis]: Other, Control Investments
Schedule of Investments [Line Items]
Fair value		$ 0		$ 0		0	0
Investment, Identifier [Axis]: PPL RVs, Inc., Common Stock 1
Schedule of Investments [Line Items]
Units (in shares)		2,000		2,000
Cost		$ 2,150		$ 2,150
Fair value		$ 15,870		$ 16,980		18,070	18,950
Investment, Identifier [Axis]: PPL RVs, Inc., Common Stock 2
Schedule of Investments [Line Items]
Units (in shares)		238,421	[41]	238,421	[40]
Cost		$ 238	[41]	$ 238	[40]
Fair value		$ 514	[41]	$ 368	[40]	$ 250	238
Investment, Identifier [Axis]: PPL RVs, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		8.75%	[24],[25]	8.75%	[26],[27]	8.75%
Principal		$ 0	[24],[25]	$ 0	[26],[27]
Cost		(6)	[24],[25]	(7)	[26],[27]
Fair value		$ 0	[24],[25]	$ 0	[26],[27]	$ 0	0
Investment, Identifier [Axis]: PPL RVs, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.23%	[25]	14.23%	[27]	13.63%
Spread (as a percent)		8.75%	[25]	8.75%	[27]	8.75%
Principal		$ 19,021	[25]	$ 19,877	[27]
Cost		18,872	[25]	19,697	[27]
Fair value		$ 19,021	[25]	$ 19,877	[27]	$ 20,290	21,655
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.24%	[5],[7],[13],[25],[31]	12.80%	[6],[9],[14],[27],[65]
Spread (as a percent)		6.75%	[5],[7],[13],[25],[31]	7.25%	[6],[9],[14],[27],[65]
Principal		$ 4,930	[5],[7],[13],[25],[31]	$ 3,022	[6],[9],[14],[27],[65]
Cost		4,812	[5],[7],[13],[25],[31]	2,885	[6],[9],[14],[27],[65]
Fair value		$ 4,916	[5],[7],[13],[25],[31]	$ 2,998	[6],[9],[14],[27],[65]
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.34%	[5],[7],[13],[25]	12.88%	[6],[9],[14],[27]
Spread (as a percent)		6.75%	[5],[7],[13],[25]	7.25%	[6],[9],[14],[27]
Principal		$ 21,707	[5],[7],[13],[25]	$ 26,478	[6],[9],[14],[27]
Cost		21,428	[5],[7],[13],[25]	26,084	[6],[9],[14],[27]
Fair value		$ 21,646	[5],[7],[13],[25]	$ 26,263	[6],[9],[14],[27]
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[26],[27]			5.75%
Principal	[6],[26],[27]			$ 0
Cost	[6],[26],[27]			(79)
Fair value	[6],[26],[27]			$ 0
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[6],[27],[66]			11.24%
Spread (as a percent)	[6],[27],[66]			5.75%
Principal	[6],[27],[66]			$ 3,204
Cost	[6],[27],[66]			3,135
Fair value	[6],[27],[66]			$ 3,186
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[6],[27]			11.25%
Spread (as a percent)	[6],[27]			5.75%
Principal	[6],[27]			$ 18,597
Cost	[6],[27]			18,265
Fair value	[6],[27]			$ 18,490
Investment, Identifier [Axis]: Peaches Holding Corporation, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		3,226
Cost		$ 7,221
Fair value		$ 7,221
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		15,061	[29]	15,061	[30]
Cost		$ 13,000	[29]	$ 13,000	[30]
Fair value		$ 53,340	[29]	$ 44,090	[30]	$ 44,090	43,260
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%		12%		12%
Principal		$ 5,000		$ 3,500
Cost		4,997		3,497
Fair value		$ 5,000		$ 3,500		$ 3,500	0
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%		12%		12%
Principal		$ 38,219		$ 20,000
Cost		38,065		19,956
Fair value		$ 38,219		$ 20,000		$ 13,500	0
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12%		12%		12%
Principal		$ 27,681		$ 27,681
Cost		27,613		27,601
Fair value		$ 27,681		$ 27,681		$ 27,681	28,681
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		440	[29]	440
Cost		$ 12,540	[29]	$ 12,540
Fair value		15,330	[29]	$ 12,540
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				8%
Principal		0	[24]	$ 460
Cost		(14)	[24]	444
Fair value		$ (14)	[24]	$ 444
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%		13%
Principal		$ 30,640		$ 30,640
Cost		30,369		30,339
Fair value		$ 30,369		$ 30,339
Investment, Identifier [Axis]: Power System Solutions, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		1,234	[5]	1,234	[6]
Cost		$ 1,234	[5]	$ 1,234	[6]
Fair value		$ 2,140	[5]	$ 1,160	[6]
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[5],[24],[25]	6.75%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(73)	[5],[24],[25]	(82)	[6],[26],[27]
Fair value		$ (73)	[5],[24],[25]	$ (82)	[6],[26],[27]
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[5],[25]	11.84%
Spread (as a percent)		6.50%	[5],[25]	6.75%	[6],[26],[27]
Principal		$ 6,155	[5],[25]	$ 0	[6],[26],[27]
Cost		5,999	[5],[25]	(82)	[6],[26],[27]
Fair value		$ 6,155	[5],[25]	$ (82)	[6],[26],[27]
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.82%	[5],[25]	12.12%	[6],[27]
Spread (as a percent)		6.50%	[5],[25]	6.75%	[6],[27]
Principal		$ 18,326	[5],[25]	$ 18,418	[6],[27]
Cost		17,895	[5],[25]	17,930	[6],[27]
Fair value		$ 18,326	[5],[25]	$ 18,418	[6],[27]
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.83%	[5],[25]	12.28%	[6],[27]
Spread (as a percent)		5.50%	[5],[25]	6.85%	[6],[27]
Principal		$ 7,920	[5],[25]	$ 7,960	[6],[27]
Cost		7,684	[5],[25]	7,750	[6],[27]
Fair value		$ 7,884	[5],[25]	$ 7,960	[6],[27]
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.83%	[5],[25]	12.20%	[6],[27]
Spread (as a percent)		5.50%	[5],[25]	6.85%	[6],[27]
Principal		$ 756	[5],[25]	$ 760	[6],[27]
Cost		732	[5],[25]	738	[6],[27]
Fair value		$ 753	[5],[25]	$ 760	[6],[27]
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[5],[25]	10.83%
Spread (as a percent)	[5],[25]	5.50%
Principal	[5],[25]	$ 760
Cost	[5],[25]	742
Fair value	[5],[25]	$ 756
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[5],[25]	10.58%
Spread (as a percent)	[5],[25]	5.25%
Principal	[5],[25]	$ 863
Cost	[5],[25]	851
Fair value	[5],[25]	$ 851
Investment, Identifier [Axis]: Principle Environmental, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		1,037		1,037
Cost		$ 1,200		$ 1,200
Fair value		$ 510		$ 510		500	590
Investment, Identifier [Axis]: Principle Environmental, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		21,806	[29]	21,806	[30]
Cost		$ 5,709	[29]	$ 5,709	[30]
Fair value		$ 10,800	[29]	10,750	[30]	10,480	12,420
Investment, Identifier [Axis]: Principle Environmental, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%
Principal		$ 5,897
Cost		5,841
Fair value		$ 5,841		5,829
Investment, Identifier [Axis]: Principle Environmental, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Principal	[26]			0
Cost	[26]			0
Fair value				$ 0	[26]	$ 0	0
Investment, Identifier [Axis]: Principle Environmental, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				13%		13%
Principal				$ 5,897
Cost				5,829
Fair value				$ 5,829		$ 5,817	5,806
Investment, Identifier [Axis]: Purge Rite, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)	[5]	32,813
Cost	[5]	$ 33
Fair value	[5]	$ 290
Investment, Identifier [Axis]: Purge Rite, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		32,813	[5]	3,281,250	[6]
Cost		$ 3,248	[5]	$ 3,281	[6]
Fair value		$ 3,248	[5]	$ 3,281	[6]
Investment, Identifier [Axis]: Purge Rite, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[5],[24],[25]	8%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(42)	[5],[24],[25]	(47)	[6],[26],[27]
Fair value		$ (42)	[5],[24],[25]	$ (47)	[6],[26],[27]
Investment, Identifier [Axis]: Purge Rite, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.57%	[5],[25]	13.70%	[6],[27]
Spread (as a percent)		8%	[5],[25]	8%	[6],[27]
Principal		$ 9,844	[5],[25]	$ 9,844	[6],[27]
Cost		9,635	[5],[25]	9,610	[6],[27]
Fair value		$ 9,844	[5],[25]	$ 9,610	[6],[27]
Investment, Identifier [Axis]: Quality Lease Service, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		1,000		1,000
Cost		$ 7,546		$ 7,546
Fair value		460		460		460	525
Investment, Identifier [Axis]: Quality Lease Service, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Fair value		$ 0		$ 0		0	0
Investment, Identifier [Axis]: Quality Lease Service, LLC, Secured Debt
Schedule of Investments [Line Items]
Fair value						0	0
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.19%	[5],[25]	12.22%	[6],[27],[58]
Spread (as a percent)		6.75%	[5],[25]	6.75%	[6],[27],[58]
Principal		$ 1,278	[5],[25]	$ 824	[6],[27],[58]
Cost		1,272	[5],[25]	816	[6],[27],[58]
Fair value		$ 1,222	[5],[25]	$ 772	[6],[27],[58]
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.19%	[5],[25]	12.21%	[6],[27]
Spread (as a percent)		6.75%	[5],[25]	6.75%	[6],[27]
Principal		$ 13,369	[5],[25]	$ 13,369	[6],[27]
Cost		13,300	[5],[25]	13,280	[6],[27]
Fair value		$ 12,786	[5],[25]	$ 12,512	[6],[27]
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[6],[27]			13.21%
Spread (as a percent)	[6],[27]			7.75%
Principal	[6],[27]			$ 548
Cost	[6],[27]			536
Fair value	[6],[27]			$ 534
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[6],[27]			13.19%
Spread (as a percent)	[6],[27]			7.75%
Principal	[6],[27]			$ 14,323
Cost	[6],[27]			14,260
Fair value	[6],[27]			$ 13,951
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[6],[27]			13.19%
Spread (as a percent)	[6],[27]			7.75%
Principal	[6],[27]			$ 574
Cost	[6],[27]			572
Fair value	[6],[27]			$ 559
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[12],[27]			11.14%
Spread (as a percent)	[12],[27]			5.50%
Principal	[12],[27]			$ 19,704
Cost	[12],[27]			19,595
Fair value	[12],[27]			$ 14,715
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.82%	[5],[25],[31]	18.47%	[6],[27],[67]
Spread (as a percent)		6.50%	[5],[25],[31]	6.50%	[6],[27],[67]
Principal		$ 5,067	[5],[25],[31]	$ 3,167	[6],[27],[67]
Cost		4,996	[5],[25],[31]	3,087	[6],[27],[67]
Fair value		$ 5,067	[5],[25],[31]	$ 3,109	[6],[27],[67]
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.82%	[5],[25]	11.88%	[6],[27]
Spread (as a percent)		6.50%	[5],[25]	6.50%	[6],[27]
Principal		$ 39,598	[5],[25]	$ 40,102	[6],[27]
Cost		38,494	[5],[25]	38,858	[6],[27]
Fair value		$ 39,598	[5],[25]	$ 39,376	[6],[27]
Investment, Identifier [Axis]: River Aggregates, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		1,500	[41]	1,500	[40]
Cost		$ 369	[41]	$ 369	[40]
Fair value		$ 3,790	[41]	$ 3,710	[40]	3,620	3,620
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		11,070		11,070
Cost		$ 11,070		$ 11,070
Fair value		$ 0		0		6,140	14,880
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 1
Schedule of Investments [Line Items]
PIK Rate		10%
Principal		$ 0	[24],[32]	0	[26]
Cost		(24)	[24],[32]	(26)	[26]
Fair value		$ (24)	[24],[32]	$ (26)	[26]	$ (31)	(35)
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%	[32]	12.50%		12.50%
PIK Rate	[32]	10%
Principal		$ 33,660	[32]	$ 34,110
Cost		33,479	[32]	33,909
Fair value		$ 17,388	[32]	$ 30,798		$ 34,325	35,404
Investment, Identifier [Axis]: Rocaceia, LLC (Quality Lease and Rental Holdings, LLC), Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)				250
Cost				$ 2,500
Fair value				$ 0
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[5],[24],[25]	6.50%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(7)	[5],[24],[25]	(8)	[6],[26],[27]
Fair value		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.56%	[5],[25]	12.16%	[6],[27]
Spread (as a percent)		7%	[5],[25]	6.50%	[6],[27]
PIK Rate	[5],[25]	0.50%
Principal		$ 3,376	[5],[25]	$ 3,376	[6],[27]
Cost		3,323	[5],[25]	3,328	[6],[27]
Fair value		$ 3,369	[5],[25]	$ 3,314	[6],[27]
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		14.56%	[5],[25]	14.16%	[6],[27]
Spread (as a percent)		9%	[5],[25]	8.50%	[6],[27]
PIK Rate	[5],[25]	0.50%
Principal		$ 3,376	[5],[25]	$ 3,376	[6],[27]
Cost		3,323	[5],[25]	3,328	[6],[27]
Fair value		$ 3,327	[5],[25]	$ 3,266	[6],[27]
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.52%	[5],[25]	13.54%	[6],[27]
Spread (as a percent)		6%	[5],[25]	6%	[6],[27]
PIK Rate		2%	[5],[25]	2%	[6],[27]
Principal		$ 5,828	[5],[25]	$ 5,769	[6],[27]
Cost		5,814	[5],[25]	5,749	[6],[27]
Fair value		$ 5,828	[5],[25]	$ 5,744	[6],[27]
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.52%	[5],[25]	13.54%	[6],[27]
Spread (as a percent)		6%	[5],[25]	6%	[6],[27]
PIK Rate		2%	[5],[25]	2%	[6],[27]
Principal		$ 7,787	[5],[25]	$ 8,121	[6],[27]
Cost		7,741	[5],[25]	8,059	[6],[27]
Fair value		$ 7,787	[5],[25]	$ 8,086	[6],[27]
Investment, Identifier [Axis]: SI East, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		165	[29]	165	[30]
Cost		$ 1,525	[29]	$ 1,525	[30]
Fair value		$ 17,690	[29]	$ 19,170	[30]	15,780	13,650
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.75%		11.25%
Principal		$ 2,250		$ 1,125
Cost		2,235		1,108
Fair value		$ 2,250		$ 1,125		$ 0	0
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.62%	[68]	12.47%	[69]	12.78%
Principal		$ 67,661	[68]	$ 54,536	[69]
Cost		67,604	[68]	54,295	[69]
Fair value		67,661	[68]	54,536	[69]	$ 54,536	0
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Fair value		$ 0		54,536
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.62%
Fair value		$ 67,661		$ 0		0	89,786
Investment, Identifier [Axis]: SPAU Holdings, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		638,710	[5]	638,710	[6]
Cost		$ 639	[5]	$ 639	[6]
Fair value		$ 610	[5]	$ 500	[6]
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[5],[25]	12.98%
Spread (as a percent)		7.50%	[5],[25]	8%	[6],[26],[27]
Principal		$ 1,533	[5],[25]	$ 0	[6],[26],[27]
Cost		1,495	[5],[25]	(45)	[6],[26],[27]
Fair value		$ 1,533	[5],[25]	$ 0	[6],[26],[27]
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.98%	[5],[25]	13.72%	[6],[27]
Spread (as a percent)		7.50%	[5],[25]	8%	[6],[27]
Principal		$ 15,648	[5],[25]	$ 15,728	[6],[27]
Cost		15,458	[5],[25]	15,506	[6],[27]
Fair value		$ 15,648	[5],[25]	$ 15,728	[6],[27]
Investment, Identifier [Axis]: Slick Innovations, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		70,000	[29]	70,000
Cost		$ 0	[29]	$ 456
Fair value		$ 1,880	[29]	$ 2,310		$ 1,850	1,530
Investment, Identifier [Axis]: Slick Innovations, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14%		14%		14%
Principal		$ 18,080		$ 11,440
Cost		17,900		11,345
Fair value		$ 18,080		$ 11,440		$ 13,040	13,840
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		864	[5]	863,636	[6]
Cost		$ 864	[5]	$ 864	[6]
Fair value		$ 835	[5]	$ 836	[6]
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[6],[27]			11.46%
Spread (as a percent)		6%	[5],[24],[25]	6%	[6],[27]
Principal		$ 0	[5],[24],[25]	$ 446	[6],[27]
Cost		(44)	[5],[24],[25]	394	[6],[27]
Fair value		$ (44)	[5],[24],[25]	$ 394	[6],[27]
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.44%	[5],[25]	11.70%	[6],[27]
Spread (as a percent)		6%	[5],[25]	6%	[6],[27]
Principal		$ 33,249	[5],[25]	$ 34,886	[6],[27]
Cost		32,922	[5],[25]	34,472	[6],[27]
Fair value		$ 33,249	[5],[25]	$ 34,886	[6],[27]
Investment, Identifier [Axis]: Stellant Systems, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.04%	[11],[25]	11.04%	[12],[27]
Spread (as a percent)		5.50%	[11],[25]	5.50%	[12],[27]
Principal		$ 7,936	[11],[25]	$ 7,527	[12],[27]
Cost		7,892	[11],[25]	7,475	[12],[27]
Fair value		$ 7,970	[11],[25]	$ 7,527	[12],[27]
Investment, Identifier [Axis]: Stellant Systems, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.19%	[11],[25]	11.28%	[12],[27]
Spread (as a percent)		5.75%	[11],[25]	5.75%	[12],[27]
Principal		$ 9,131	[11],[25]	$ 8,978	[12],[27]
Cost		8,899	[11],[25]	8,717	[12],[27]
Fair value		$ 9,171	[11],[25]	$ 8,977	[12],[27]
Investment, Identifier [Axis]: Student Resource Center, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		5,907,649	[5]	5,907,649	[6]
Cost		$ 0	[5]	$ 0	[6]
Fair value		$ 0	[5]	$ 0	[6]	$ 0	0
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		8.50%	[5],[32]	8.50%	[6],[33]	8.50%
PIK Rate		8.50%	[5],[32]	8.50%	[6],[33]	8.50%
Principal		$ 5,327	[5],[32]	$ 5,327	[6],[33]
Cost		4,884	[5],[32]	4,884	[6],[33]
Fair value		$ 1,644	[5],[32]	$ 3,190	[6],[33]	$ 4,770	4,556
Investment, Identifier [Axis]: Superior Rigging & Erecting Co., Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		1,636		1,636
Cost		$ 4,500		$ 4,500
Fair value		6,430		$ 5,940		$ 5,640	4,500
Investment, Identifier [Axis]: Superior Rigging & Erecting Co., Secured Debt
Schedule of Investments [Line Items]
Total Rate				12%		12%
Principal				$ 20,500
Cost				20,427
Fair value		$ 0		$ 20,427		$ 20,405	21,378
Investment, Identifier [Axis]: Team Public Choices, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.58%	[11],[25]	10.88%	[12],[27]
Spread (as a percent)		5%	[11],[25]	5%	[12],[27]
Principal		$ 14,728	[11],[25]	$ 14,804	[12],[27]
Cost		14,540	[11],[25]	14,588	[12],[27]
Fair value		$ 14,741	[11],[25]	$ 14,717	[12],[27]
Investment, Identifier [Axis]: Tectonic Financial, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		200,000	[29]	200,000	[30]
Cost		$ 2,000	[29]	$ 2,000	[30]
Fair value		$ 4,720	[29]	$ 5,030	[30]
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		6,605		6,605
Cost		$ 661		$ 661
Fair value		$ 0		$ 0		6,290	7,681
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		5,643		5,643
Cost		$ 564		$ 564
Fair value		$ 0		$ 0		$ 533	0
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 3
Schedule of Investments [Line Items]
Units (in shares)		544		544
Cost		$ 9,245		$ 9,245
Fair value		$ 0		$ 0
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%	[32],[38]	12%	[39]	12%
PIK Rate	[32],[38]	12%
Principal		$ 1,840	[32],[38]	$ 1,840	[39]
Cost		1,840	[32],[38]	1,840	[39]
Fair value		$ 1,726	[32],[38]	$ 1,726	[39]	$ 1,840	1,840
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%	[32],[38]	12%	[39]	12%
PIK Rate	[32],[38]	12%
Principal		$ 15,200	[32],[38]	$ 15,200	[39]
Cost		15,200	[32],[38]	15,200	[39]
Fair value		$ 4,657	[32],[38]	$ 14,262	[39]	$ 15,127	15,120
Investment, Identifier [Axis]: Televerde, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		460		460	[30]
Cost		$ 1,290		$ 1,290	[30]
Fair value		$ 2,570		$ 4,734	[30]	6,082	5,408
Investment, Identifier [Axis]: Televerde, LLC, Preferred Stock
Schedule of Investments [Line Items]
Units (in shares)		248		248
Cost		$ 718		$ 718
Fair value		$ 1,793		$ 1,794		1,794	1,794
Investment, Identifier [Axis]: Tex Tech Tennis, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		1,000,000	[5],[41]	1,000,000	[6],[40]
Cost		$ 1,000	[5],[41]	$ 1,000	[6],[40]
Fair value		$ 2,680	[5],[41]	$ 2,840	[6],[40]
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock
Schedule of Investments [Line Items]
Fair value						6,400	6,400
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 1
Schedule of Investments [Line Items]
Units (in shares)		236,110		172,110
Cost		$ 236		$ 172
Fair value		236		172
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 1.1
Schedule of Investments [Line Items]
Fair value		$ 6,400		$ 6,400
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 2
Schedule of Investments [Line Items]
Units (in shares)		1,280,000	[29]	1,280,000	[30]
Cost		$ 6,400	[29]	$ 6,400	[30]
Fair value		6,400	[29]	6,400	[30]
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 2.1
Schedule of Investments [Line Items]
Fair value		236		$ 172
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				13%
Principal		0	[24]	$ 160
Cost		(8)	[24]	150
Fair value		$ (8)	[24]	$ 150		$ (12)	106
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		13%		13%
Principal		$ 6,321		$ 7,521
Cost		6,290		7,475
Fair value		$ 6,161		$ 7,347		$ 8,728	9,442
Investment, Identifier [Axis]: Titan Meter Midco Corp., Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)	[5]	1,218,750
Cost	[5]	$ 1,219
Fair value	[5]	$ 1,219
Investment, Identifier [Axis]: Titan Meter Midco Corp., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[5],[24],[25]	6.50%
Principal	[5],[24],[25]	$ 0
Cost	[5],[24],[25]	(118)
Fair value	[5],[24],[25]	$ (118)
Investment, Identifier [Axis]: Titan Meter Midco Corp., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[5],[25]	11.83%
Spread (as a percent)	[5],[25]	6.50%
Principal	[5],[25]	$ 34,098
Cost	[5],[25]	32,983
Fair value	[5],[25]	$ 33,417
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		615	[29]	615	[30]
Cost		$ 4,655	[29]	$ 4,655	[30]
Fair value		9,770	[29]	12,740	[30]	11,770	7,800
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Principal		0	[24]	0	[26]
Cost		(1)	[24]	(1)	[26]
Fair value		$ 0	[24]	$ 0	[26]	$ 0	0
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%		12%		12%
Principal		$ 7,920		$ 7,920
Cost		7,842		7,911
Fair value		$ 7,920		$ 7,920		$ 7,920	7,920
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.50%	[11],[25],[32]	12.53%	[12],[27],[33]
Spread (as a percent)		7.15%	[11],[25],[32]	7.15%	[12],[27],[33]
PIK Rate		6%	[11],[25],[32]	6%	[12],[27],[33]
Principal		$ 9,871	[11],[25],[32]	$ 9,298	[12],[27],[33]
Cost		3,628	[11],[25],[32]	3,585	[12],[27],[33]
Fair value		4,025	[11],[25],[32]	3,333	[12],[27],[33]
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 2
Schedule of Investments [Line Items]
Principal		1,003	[11],[32]	946	[12],[33]
Cost		20	[11],[32]	20	[12],[33]
Fair value		$ 0	[11],[32]	$ 0	[12],[33]
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[6],[27]			11.46%
Spread (as a percent)	[6],[27]			6%
Principal	[6],[27]			$ 23,101
Cost	[6],[27]			22,817
Fair value	[6],[27]			$ 23,101
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[6],[27]			11.96%
Spread (as a percent)	[6],[27]			6.50%
Principal	[6],[27]			$ 9,017
Cost	[6],[27]			8,862
Fair value	[6],[27]			$ 9,017
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[6],[27]			11.96%
Spread (as a percent)	[6],[27]			6.50%
Principal	[6],[27]			$ 4,689
Cost	[6],[27]			4,601
Fair value	[6],[27]			$ 4,689
Investment, Identifier [Axis]: UniTek Global Services, Inc., Common Stock
Schedule of Investments [Line Items]
Units (in shares)		945,507	[11]	945,507	[12]
Cost		$ 0	[11]	$ 0	[12]
Fair value		$ 0	[11]	$ 0	[12]	$ 0	0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 1
Schedule of Investments [Line Items]
Units (in shares)		1,133,102	[11],[29]	1,133,102	[12],[30]
Total Rate		20%	[11],[29]	20%	[12],[30]	20%
PIK Rate		20%	[11],[29]	20%	[12],[30]	20%
Cost		$ 2,880	[11],[29]	$ 2,609	[12],[30]
Fair value		$ 2,880	[11],[29]	$ 2,833	[12],[30]	$ 2,833	2,833
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 2
Schedule of Investments [Line Items]
Units (in shares)		1,521,122	[11]	1,521,122	[12]
Total Rate		20%	[11]	20%	[12]	20%
PIK Rate		20%	[11]	20%	[12]	20%
Cost		$ 2,188	[11]	$ 2,188	[12]
Fair value		$ 3,838	[11]	$ 3,698	[12]	$ 3,659	1,991
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 3
Schedule of Investments [Line Items]
Units (in shares)		2,281,682	[11]	2,281,682	[12]
Total Rate		19%	[11]	19%	[12]	19%
PIK Rate		19%	[11]	19%	[12]	19%
Cost		$ 3,667	[11]	$ 3,667	[12]
Fair value		$ 0	[11]	$ 0	[12]	$ 0	0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 4
Schedule of Investments [Line Items]
Units (in shares)		4,336,866	[11]	4,336,866	[12]
Total Rate		13.50%	[11]	13.50%	[12]	13.50%
PIK Rate		13.50%	[11]	13.50%	[12]	13.50%
Cost		$ 7,924	[11]	$ 7,924	[12]
Fair value		$ 0	[11]	$ 0	[12]	$ 0	0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Convertible Debt
Schedule of Investments [Line Items]
Total Rate						15%
PIK Rate						15%
Fair value						$ 6,159	4,592
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Convertible Debt 1
Schedule of Investments [Line Items]
Total Rate		15%	[11]	15%	[12]
PIK Rate		15%	[11]	15%	[12]
Principal		$ 1,846	[11]	$ 1,714	[12]
Cost		1,846	[11]	1,714	[12]
Fair value		$ 4,021	[11]	$ 3,889	[12]
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Convertible Debt 2
Schedule of Investments [Line Items]
Total Rate		15%	[11]	15%	[12]
PIK Rate		15%	[11]	15%	[12]
Principal		$ 905	[11]	$ 840	[12]
Cost		905	[11]	840	[12]
Fair value		$ 1,972	[11]	$ 1,908	[12]
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)						7.50%
Fair value						$ 0	382
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)						7.50%
Fair value						$ 0	1,712
Investment, Identifier [Axis]: UnionRock Energy Fund II, LP, LP Interests
Schedule of Investments [Line Items]
Units (as a percent)		11.11%	[7],[8],[44]	11.11%	[9],[10],[45]
Cost		$ 3,552	[7],[8],[44]	$ 3,719	[9],[10],[45]
Fair value		$ 5,724	[7],[8],[44]	$ 5,694	[9],[10],[45]	5,224	5,855
Investment, Identifier [Axis]: UnionRock Energy Fund III, LP, LP Interests
Schedule of Investments [Line Items]
Units (as a percent)		25%	[7],[8],[44]	25%	[9],[10],[45]
Cost		$ 4,993	[7],[8],[44]	$ 2,493	[9],[10],[45]
Fair value		$ 6,332	[7],[8],[44]	$ 2,838	[9],[10],[45]	150	0
Investment, Identifier [Axis]: Universal Wellhead Services Holdings, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		4,000,000	[5],[41]	4,000,000	[6],[40]
Cost		$ 4,000	[5],[41]	$ 4,000	[6],[40]
Fair value		$ 0	[5],[41]	$ 0	[6],[40]	$ 0	0
Investment, Identifier [Axis]: Universal Wellhead Services Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		716,949	[5],[41]	716,949	[6],[40]
Total Rate		14%	[5],[41]	14%	[6],[40]	14%
PIK Rate		14%	[5],[41]	14%	[6],[40]	14%
Cost		$ 1,032	[5],[41]	$ 1,032	[6],[40]
Fair value		$ 0	[5],[41]	150	[6],[40]	$ 220	220
Investment, Identifier [Axis]: Urgent DSO LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)	[29]	4,000
Total Rate	[29]	9%
PIK Rate	[29]	9%
Cost	[29]	$ 4,136
Fair value		$ 4,136	[29]	0
Investment, Identifier [Axis]: Urgent DSO LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.50%
Principal		$ 8,800
Cost		8,718
Fair value		$ 8,718		$ 0
Investment, Identifier [Axis]: UserZoom Technologies, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.81%	[5],[25]	12.99%	[6],[27]
Spread (as a percent)		7.50%	[5],[25]	7.50%	[6],[27]
Principal		$ 4,000	[5],[25]	$ 4,000	[6],[27]
Cost		3,909	[5],[25]	3,899	[6],[27]
Fair value		$ 4,000	[5],[25]	$ 4,000	[6],[27]
Investment, Identifier [Axis]: VORTEQ Coil Finishers, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		1,038,462	[5],[29]	1,038,462	[6],[30]
Cost		$ 1,038	[5],[29]	$ 1,038	[6],[30]
Fair value		$ 2,570	[5],[29]	$ 2,570	[6],[30]
Investment, Identifier [Axis]: VVS Holdco LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		12,240	[29],[41]	12,240	[30],[40]
Cost		$ 12,240	[29],[41]	$ 12,240	[30],[40]
Fair value		$ 12,240	[29],[41]	$ 12,240	[30],[40]	$ 11,840	11,940
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[24],[25]	6%	[26],[27],[39]	6%
Principal		$ 0	[24],[25]	$ 0	[26],[27],[39]
Cost		0	[24],[25]	0	[26],[27],[39]
Fair value		$ 0	[24],[25]	$ 0	[26],[27],[39]	$ (10)	(21)
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.50%		11.50%		11.50%
Principal		$ 27,040		$ 28,200
Cost		26,909		28,035
Fair value		$ 26,909		$ 28,035		$ 28,958	30,161
Investment, Identifier [Axis]: Veregy Consolidated, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		5.25%	[11],[24],[25]	5.25%	[12],[26],[27]
Principal		$ 0	[11],[24],[25]	$ 0	[12],[26],[27]
Cost		(296)	[11],[24],[25]	(408)	[12],[26],[27]
Fair value		$ (296)	[11],[24],[25]	$ (408)	[12],[26],[27]
Investment, Identifier [Axis]: Veregy Consolidated, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.59%	[11],[25]	11.64%	[12],[27]
Spread (as a percent)		6%	[11],[25]	6%	[12],[27]
Principal		$ 17,740	[11],[25]	$ 17,433	[12],[27]
Cost		17,523	[11],[25]	17,195	[12],[27]
Fair value		$ 17,794	[11],[25]	$ 15,775	[12],[27]
Investment, Identifier [Axis]: Vision Interests, Inc., Series A Preferred Stock
Schedule of Investments [Line Items]
Units (in shares)		3,000,000		3,000,000	[30]
Cost		$ 3,000		$ 3,000	[30]
Fair value		$ 3,000		$ 3,000	[30]	3,000	3,000
Investment, Identifier [Axis]: Vistar Media, Inc., Preferred Stock
Schedule of Investments [Line Items]
Units (in shares)		70,207	[5]	70,207	[6]
Cost		$ 767	[5]	$ 767	[6]
Fair value		$ 2,320	[5]	$ 2,180	[6]
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[6],[27]			12.63%
Spread (as a percent)	[6],[27]			7%
Principal	[6],[27]			$ 42,500
Cost	[6],[27]			41,455
Fair value	[6],[27]			$ 41,455
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[5],[25],[70]	12.59%
Principal	[5],[25],[70]	$ 5,409
Cost	[5],[25],[70]	5,272
Fair value	[5],[25],[70]	$ 5,372
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[5],[25]	12.46%
Spread (as a percent)	[5],[25]	7%
Principal	[5],[25]	$ 42,288
Cost	[5],[25]	41,352
Fair value	[5],[25]	$ 42,000
Investment, Identifier [Axis]: Volusion, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		1,802,780		1,802,780
Cost		$ 2,576		$ 2,576
Fair value		$ 0		$ 0		0	0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		5,097,595		5,097,595
Cost		$ 6,529		$ 8,646
Fair value		7,000		7,250		0	0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Fair value		$ 0		$ 0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		142,512		142,512
Cost		$ 0		$ 0
Fair value		0		0		10,740	0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Fair value		$ 7,000		$ 7,250
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 3
Schedule of Investments [Line Items]
Units (in shares)		4,876,670		4,876,670
Cost		$ 14,000		$ 14,000
Fair value		$ 0		$ 0		$ 0	0
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10%		10%
Principal		$ 2,100		$ 2,100
Cost		2,100		2,100
Fair value		$ 2,100		$ 2,100
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate						10%
Fair value						$ 2,100	0
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Fair value						0	14,914
Investment, Identifier [Axis]: Volusion, LLC, Unsecured Convertible Debt
Schedule of Investments [Line Items]
Fair value						0	0
Investment, Identifier [Axis]: Volusion, LLC, Warrants
Schedule of Investments [Line Items]
Fair value						0	0
Investment, Identifier [Axis]: Wall Street Prep, Inc., Common Stock
Schedule of Investments [Line Items]
Units (in shares)		400,000	[5]	400,000	[6]
Cost		$ 400	[5]	$ 400	[6]
Fair value		$ 880	[5]	$ 731	[6]
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[5],[24],[25]	7%	[6],[26],[27]
Principal		$ 0	[5],[24],[25]	$ 0	[6],[26],[27]
Cost		(3)	[5],[24],[25]	(4)	[6],[26],[27]
Fair value		$ (3)	[5],[24],[25]	$ (4)	[6],[26],[27]
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.45%	[5],[25]	12.54%	[6],[27]
Spread (as a percent)		7%	[5],[25]	7%	[6],[27]
Principal		$ 3,414	[5],[25]	$ 3,723	[6],[27]
Cost		3,385	[5],[25]	3,685	[6],[27]
Fair value		$ 3,414	[5],[25]	$ 3,723	[6],[27]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.73%	[5],[25]	11.50%	[6],[27],[61]
Spread (as a percent)		6.25%	[5],[25]	6%	[6],[27],[61]
Principal		$ 2,223	[5],[25]	$ 1,853	[6],[27],[61]
Cost		2,200	[5],[25]	1,825	[6],[27],[61]
Fair value		$ 2,223	[5],[25]	$ 1,853	[6],[27],[61]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.73%	[5],[25]	11.50%	[6],[27]
Spread (as a percent)		6.25%	[5],[25]	6%	[6],[27]
Principal		$ 384	[5],[25]	$ 386	[6],[27]
Cost		365	[5],[25]	364	[6],[27]
Fair value		$ 384	[5],[25]	$ 386	[6],[27]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.73%	[5],[25]	11.50%	[6],[27]
Spread (as a percent)		6.25%	[5],[25]	6%	[6],[27]
Principal		$ 15,805	[5],[25]	$ 15,886	[6],[27]
Cost		15,680	[5],[25]	15,736	[6],[27]
Fair value		$ 15,805	[5],[25]	$ 15,886	[6],[27]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		11.73%	[5],[25]	11.50%	[6],[27]
Spread (as a percent)		6.25%	[5],[25]	6%	[6],[27]
Principal		$ 12,642	[5],[25]	$ 12,707	[6],[27]
Cost		12,541	[5],[25]	12,585	[6],[27]
Fair value		$ 12,642	[5],[25]	$ 12,707	[6],[27]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		1,541,400	[5],[29]	1,541,400	[6]
Cost		$ 1,541	[5],[29]	$ 1,541	[6]
Fair value		$ 4,580	[5],[29]	$ 2,990	[6]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.33%	[5],[25],[28]	11.34%	[6],[27],[71]
Spread (as a percent)		5%	[5],[25],[28]	6%	[6],[27],[71]
Principal		$ 2,393	[5],[25],[28]	$ 2,405	[6],[27],[71]
Cost		2,355	[5],[25],[28]	2,365	[6],[27],[71]
Fair value		$ 2,393	[5],[25],[28]	$ 2,405	[6],[27],[71]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.33%	[5],[25]	11.35%	[6],[27]
Spread (as a percent)		5%	[5],[25]	6%	[6],[27]
Principal		$ 10,604	[5],[25]	$ 10,658	[6],[27]
Cost		10,463	[5],[25]	10,512	[6],[27]
Fair value		$ 10,604	[5],[25]	$ 10,658	[6],[27]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.33%	[5],[25]	11.35%	[6],[27]
Spread (as a percent)		5%	[5],[25]	6%	[6],[27]
Principal		$ 5,277	[5],[25]	$ 5,303	[6],[27]
Cost		5,179	[5],[25]	5,199	[6],[27]
Fair value		$ 5,277	[5],[25]	$ 5,303	[6],[27]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.56%	[5],[25]	12.64%	[6],[27],[72]
Spread (as a percent)		8%	[5],[25]	7%	[6],[27],[72]
Principal		$ 667	[5],[25]	$ 2,222	[6],[27],[72]
Cost		618	[5],[25]	2,198	[6],[27],[72]
Fair value		$ 655	[5],[25]	$ 2,222	[6],[27],[72]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.56%	[5],[25]	12.66%	[6],[27]
Spread (as a percent)		8%	[5],[25]	7%	[6],[27]
Principal		$ 1,874	[5],[25]	$ 2,067	[6],[27]
Cost		1,851	[5],[25]	2,036	[6],[27]
Fair value		$ 1,841	[5],[25]	$ 2,067	[6],[27]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.56%	[5],[25]	12.66%	[6],[27]
Spread (as a percent)		7%	[5],[25]	7%	[6],[27]
Principal		$ 7,240	[5],[25]	$ 9,300	[6],[27]
Cost		7,102	[5],[25]	9,193	[6],[27]
Fair value		$ 7,112	[5],[25]	$ 9,300	[6],[27]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[5],[25]	14.56%
Spread (as a percent)	[5],[25]	9%
Principal	[5],[25]	$ 7,240
Cost	[5],[25]	7,102
Fair value	[5],[25]	$ 7,112
Investment, Identifier [Axis]: World Micro Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		3,845	[29]	3,845	[30]
Cost		$ 3,845	[29]	$ 3,845	[30]
Fair value		$ 3,845	[29]	$ 3,845	[30]	$ 3,845	3,845
Investment, Identifier [Axis]: World Micro Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%		13%		13%
Principal		$ 12,123		$ 12,123
Cost		12,040		12,028
Fair value		$ 12,040		$ 12,028		$ 14,154	14,140
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[5],[25]	11.44%
Spread (as a percent)		6%	[5],[25]	5.25%	[6],[26],[27]
Principal		$ 23,936	[5],[25]	$ 0	[6],[26],[27]
Cost		23,635	[5],[25]	(163)	[6],[26],[27]
Fair value		$ 23,935	[5],[25]	$ 0	[6],[26],[27]
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.43%	[5],[25]	11.22%	[6],[27]
Spread (as a percent)		6%	[5],[25]	5.75%	[6],[27]
Principal		$ 37,635	[5],[25]	$ 24,057	[6],[27]
Cost		37,205	[5],[25]	23,713	[6],[27]
Fair value		$ 37,635	[5],[25]	$ 24,057	[6],[27]
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[6],[27]			11.25%
Spread (as a percent)	[6],[27]			5.75%
Principal	[6],[27]			$ 37,828
Cost	[6],[27]			37,336
Fair value	[6],[27]			$ 37,828
Investment, Identifier [Axis]: YS Garments, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.92%	[11],[25]	13%	[12],[27]
Spread (as a percent)		7.50%	[11],[25]	7.50%	[12],[27]
Principal		$ 11,092	[11],[25]	$ 11,167	[12],[27]
Cost		10,890	[11],[25]	10,970	[12],[27]
Fair value		$ 10,290	[11],[25]	$ 10,220	[12],[27]
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[5],[24],[25]	6%
Principal	[5],[24],[25]	$ 0
Cost	[5],[24],[25]	(206)
Fair value	[5],[24],[25]	$ (206)
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[5],[24],[25]	6%
Principal	[5],[24],[25]	$ 0
Cost	[5],[24],[25]	(181)
Fair value	[5],[24],[25]	$ (181)
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[5],[25]	11.26%
Spread (as a percent)	[5],[25]	6%
Principal	[5],[25]	$ 6,626
Cost	[5],[25]	6,496
Fair value	[5],[25]	$ 6,496
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[5],[25]	11.33%
Spread (as a percent)	[5],[25]	6%
Principal	[5],[25]	$ 47,498
Cost	[5],[25]	46,564
Fair value	[5],[25]	$ 46,564
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		10,072		10,072
Cost		$ 2,834		$ 2,834
Fair value		$ 0		$ 0		$ 70	240
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%		12%		12%
Principal		$ 450		$ 450
Cost		450		450
Fair value		$ 450		$ 450		$ 450	450
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		6.50%		6.50%		6.50%
Principal		$ 1,000		$ 1,000
Cost		1,000		1,000
Fair value		$ 945		$ 945		$ 945	945
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		14%		14%		14%
Principal		$ 2,750		$ 2,750
Cost		2,750		2,750
Fair value		$ 1,710		$ 2,080		$ 2,461	2,676
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Warrants
Schedule of Investments [Line Items]
Units (in shares)		587	[22]	587	[23]
Cost		$ 600	[22]	$ 600	[23]
Fair value		$ 0	[22]	$ 0	[23]	$ 0	$ 0
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.69%	[5],[25]	12.71%	[6],[27],[73]
Spread (as a percent)		7.25%	[5],[25]	7.25%	[6],[27],[73]
PIK Rate	[5],[25]	1.50%
Principal		$ 17,351	[5],[25]	$ 17,279	[6],[27],[73]
Cost		17,351	[5],[25]	17,246	[6],[27],[73]
Fair value		$ 16,633	[5],[25]	$ 16,380	[6],[27],[73]
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.69%	[5],[25]	12.71%	[6],[27],[73]
Spread (as a percent)		7.25%	[5],[25]	7.25%	[6],[27],[73]
PIK Rate	[5],[25]	1.50%
Principal		$ 4,343	[5],[25]	$ 4,331	[6],[27],[73]
Cost		4,343	[5],[25]	4,327	[6],[27],[73]
Fair value		$ 4,164	[5],[25]	$ 4,067	[6],[27],[73]
[1] Principal is net of repayments. Cost is net of repayments and accumulated unearned income. Negative cost is the result of the capitalized discount being greater than the principal amount outstanding on the loan. Principal is net of repayments. Cost is net of repayments and accumulated unearned income. Negative cost is the result of the capitalized discount being greater than the principal amount outstanding on the loan. Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. Private Loan portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Private Loan portfolio investments. Private Loan portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Private Loan portfolio investments. Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. Other Portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Other Portfolio investments. Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. Other Portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Other Portfolio investments. Middle Market portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Middle Market portfolio investments. Middle Market portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Middle Market portfolio investments. Portfolio company headquarters are located outside of the United States. Portfolio company headquarters are located outside of the United States. Money market fund interests included in cash and cash equivalents. Control investments are defined by the 1940 Act as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained. Control investments are defined by the 1940 Act as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained. Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments. Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments. Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments. Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments. (27) Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit. Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit. The position is unfunded and no interest income is being earned as of June 30, 2024. The position may earn a nominal unused facility fee on committed amounts. Index based floating interest rate is subject to contractual minimum interest rate. As noted in this schedule, 93% of the loans (based on the par amount) contain Term SOFR (“SOFR”) floors which range between 0.50% and 5.25%, with a weighted-average floor of 1.24%. The position is unfunded and no interest income is being earned as of December 31, 2023. The position may earn a nominal unused facility fee on committed amounts. Index based floating interest rate is subject to contractual minimum interest rate. As noted in this schedule, 96% of these floating rate loans (based on the par amount) contain LIBOR or SOFR floors which range between 0.50% and 2.00%, with a weighted-average floor of 1.20%. Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of June 30, 2024. Income producing through dividends or distributions. Income producing through dividends or distributions. RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of June 30, 2024. Non-accrual and non-income producing debt investment. Non-accrual and non-income producing debt investment. (35) Warrants are presented in equivalent shares/units with a strike price of $1.00 per share/unit. Warrants are presented in equivalent shares/units with a strike price of $1.00 per share/unit. (33) Index based floating interest rate is subject to contractual maximum base rate of 3.00%. Index based floating interest rate is subject to contractual maximum base rate of 3.00%. Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable. Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable. Shares/Units represent ownership in a related Real Estate or HoldCo entity. (29) Shares/Units represent ownership in a related Real Estate or HoldCo entity. The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of SOFR plus 8.00% (Floor 1.50%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of SOFR+8.00% (Floor 1.50%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. (30) Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated. Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.00% (Floor 2.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+8.00% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. (36) Effective yield as of June 30, 2024 was approximately 4.94% on the Dreyfus Government Cash Management. Effective yield as of December 31, 2023 was approximately 4.98% on the Dreyfus Government Cash Management. (37) Effective yield as of June 30, 2024 was approximately 4.97% on the Fidelity Government Fund. Effective yield as of December 31, 2023 was approximately 5.01% on the Fidelity Government Fund. (31) Effective yield as of June 30, 2024 was approximately 4.95% on the Fidelity Treasury. Effective yield as of December 31, 2023 was approximately 4.99% on the Fidelity Treasury. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.50% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+5.75% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. Index based floating interest rate is subject to contractual maximum base rate of 1.50%. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.75% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+8.00% (Floor 2.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+10.00%. RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.00% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.00% (Floor 1.00%). Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. External Investment Manager. Investment is not encumbered as security for the Company's Credit Facilities or in support of the SBA-guaranteed debentures issued by the Funds. External Investment Manager. Investment is not encumbered as security for the Company’s Credit Facilities or in support of the SBA-guaranteed debentures issued by the Funds. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+5.75% (1.00%). Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.50% (Floor 2.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of 11.75% per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of 11.25% per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.00% (0.75%). Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.00% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.25% (Floor 1.00%). Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023.

Consolidated Schedule of Inve_2

Consolidated Schedule of Investments (Parenthetical) - $ / shares		6 Months Ended		12 Months Ended
		Jun. 30, 2024		Dec. 31, 2023		Jun. 30, 2023
Schedule of Investments [Line Items]
Percentage of loans with variable rate floors (as a percent)		93%		96%
Strike price (in dollars per share)		$ 0.01		$ 0.01
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		18%	[1]	18%	[2]	18%
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		18%	[1]	18%	[2]	18%
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		5%	[3],[4],[5]	5%	[6],[7],[8]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[3],[5],[9]	6%	[6],[8]
Interest rate (as a percent)		11.44%	[3],[5],[9]	11.43%	[6],[8]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[3],[5]	6%	[6],[8]
Interest rate (as a percent)		11.44%	[3],[5]	11.43%	[6],[8]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[3],[5]	6%	[6],[8]
Interest rate (as a percent)		11.44%	[3],[5]	11.43%	[6],[8]
Investment, Identifier [Axis]: ADS Tactical, Inc., Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		4.75%	[1],[5]	5.75%	[2],[8]
Interest rate (as a percent)		13.25%	[1],[5]	11.22%	[2],[8]
Investment, Identifier [Axis]: AMEREQUIP LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[7],[8]			7.40%
Investment, Identifier [Axis]: AMEREQUIP LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8]			7.40%
Interest rate (as a percent)	[6],[8]			12.76%
Investment, Identifier [Axis]: ASC Interests, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		13%		13%		13%
Investment, Identifier [Axis]: ASC Interests, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		13%		13%		13%
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[5],[10]	6.50%	[6],[8]
Interest rate (as a percent)		12.06%	[3],[5],[10]	12.16%	[6],[8]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		5.50%	[3],[5]	5.50%	[6],[8]
Interest rate (as a percent)		11.06%	[3],[5]	11.16%	[6],[8]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		7.50%	[3],[5]	7.50%	[6],[8]
Interest rate (as a percent)		13.06%	[3],[5]	13.16%	[6],[8]
Investment, Identifier [Axis]: ATS Workholding, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		5%	[3],[11]	5%	[6],[12]	5%
Investment, Identifier [Axis]: ATS Workholding, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		5%	[3],[11]	5%	[6],[12]	5%
Investment, Identifier [Axis]: ATX Networks Corp., Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)						7.50%
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7.25%	[3],[4],[5]	7.25%	[6],[7],[8]
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7.25%	[3],[5]	7.25%	[6],[8]
Interest rate (as a percent)		12.74%	[3],[5]	12.76%	[6],[8]
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[4],[5]	7.50%	[6],[7],[8]
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[5]	7.50%	[6],[8]
Interest rate (as a percent)		12.44%	[3],[5]	12.98%	[6],[8]
Investment, Identifier [Axis]: Acumera, Inc., Warrants
Schedule of Investments [Line Items]
Strike price (in dollars per share)		$ 1		$ 1
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[5],[13]	7%	[6],[8],[14]
Interest rate (as a percent)		11%	[3],[5],[13]	11%	[6],[8],[14]
Interest rate (as a percent)		3%		3%
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[5],[13]	7%	[6],[8],[14]
Interest rate (as a percent)		11%	[3],[5],[13]	11%	[6],[8],[14]
Interest rate (as a percent)		3%		3%
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		5%	[3],[4],[5]	5%	[6],[7],[8]
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[3],[5]	5%	[6],[8]
Interest rate (as a percent)		11.61%	[3],[5]	13.50%	[6],[8]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		9.75%	[3],[5]	9.75%	[6],[8]
Interest rate (as a percent)		15.20%	[3],[5]	15.29%	[6],[8]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		9.75%	[3],[5]	9.75%	[6],[8]
Interest rate (as a percent)		15.20%	[3],[5]	15.29%	[6],[8]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		11.75%	[3],[5],[11]	11.75%	[6],[8],[12]
Interest rate (as a percent)		17.20%	[3],[5],[11]	17.29%	[6],[8],[12]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)		11.75%	[3],[5],[11]	11.75%	[6],[8],[12]
Interest rate (as a percent)		17.20%	[3],[5],[11]	17.29%	[6],[8],[12]
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Interest rate (as a percent)						14.13%
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Interest rate (as a percent)		14.13%
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		14.13%		14.13%
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		10%	[5]	10%	[8]	10%
Interest rate (as a percent)		15.38%	[5]	15.38%	[8]
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		10%	[5]	10%	[8]	10%
Interest rate (as a percent)		15.38%	[5]	15.38%	[8]	15.25%
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		15%	[3],[5]	15%	[6]
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[5]	6.50%	[6],[8]
Interest rate (as a percent)		11.99%	[3],[5]	12.04%	[6],[8]
Investment, Identifier [Axis]: BBB Tank Services, LLC, Preferred Stock (non-voting)
Schedule of Investments [Line Items]
Interest rate (as a percent)						15%
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)						11%
Interest rate (as a percent)						16.17%
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)						11%
Interest rate (as a percent)						16.17%
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	6%
Interest rate (as a percent)	[3],[5]	11.44%
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[4],[5]	6%
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	6%
Interest rate (as a percent)	[3],[5]	11.43%
Investment, Identifier [Axis]: Barfly Ventures, LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		7%	[3]	7%	[6]	7%
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		10%
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		10%		10%
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Interest rate (as a percent)		10%		10%		10%
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		10.25%	[3],[4],[5]	7.25%	[6],[7],[8]
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		10.25%	[3],[5]	7.25%	[6],[8]
Interest rate (as a percent)		15.60%	[3],[5]	12.64%	[6],[8]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		8.50%	[1]	7.50%	[2],[8]
Interest rate (as a percent)		13.94%	[1]	16%	[2],[8]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7.50%	[1],[5]	8.50%	[2],[8]
Interest rate (as a percent)		16%	[1],[5]	13.96%	[2],[8]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)	[1],[5]	8.50%
Interest rate (as a percent)	[1],[5]	13.94%
Investment, Identifier [Axis]: Boccella Precast Products LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		10%		10%		10%
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Class B Preferred Member Units
Schedule of Investments [Line Items]
Interest rate (as a percent)		8%	[15]	8%	[16]	8%
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		8.05%		9.11%	[8],[17]
Interest rate (as a percent)		13.43%		14.48%	[8],[17]
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		8.05%	[5],[18]			9.19%
Interest rate (as a percent)		13.43%	[5],[18]			14.37%
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[4],[5],[19],[20]	7%	[6],[7],[8],[21],[22]
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[3],[5],[19],[20]	6%	[6],[8],[21],[22]
Interest rate (as a percent)		11.45%	[3],[5],[19],[20]	11.54%	[6],[8],[21],[22]
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[5],[19],[20]	8%	[6],[8],[21],[22]
Interest rate (as a percent)		13.45%	[3],[5],[19],[20]	13.54%	[6],[8],[21],[22]
Investment, Identifier [Axis]: Brainworks Software, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7.25%	[3],[5],[11],[23]	7.25%	[6],[8],[12],[24]
Interest rate (as a percent)		15.75%	[3],[5],[11],[23]	15.75%	[6],[8],[12],[24]
Investment, Identifier [Axis]: Brainworks Software, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7.25%	[3],[5],[11],[23]	7.25%	[6],[8],[12],[24]
Interest rate (as a percent)		15.75%	[3],[5],[11],[23]	15.75%	[6],[8],[12],[24]
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		10%	[5]	10%	[8]	10%
Interest rate (as a percent)		15.48%	[5]	15.46%	[8]	15.17%
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		13%		13%		13%
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		13%		13%		13%
Investment, Identifier [Axis]: Buca C, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Interest rate (as a percent)		6%		6%		6%
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)				12%	[24]	12%
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		14%
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 1.1
Schedule of Investments [Line Items]
Interest rate (as a percent)		14%
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)	[11],[23]	14%
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Interest rate (as a percent)		14%
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		5%	[3],[4],[5]	5%	[6],[8]
Interest rate (as a percent)	[6],[8]			10.46%
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		5%	[3],[5]	5%	[6],[8]
Interest rate (as a percent)		10.44%	[3],[5]	10.46%	[6],[8]
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[4],[5]	7%	[6],[7],[8]
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[4],[5]	7%	[6],[7],[8]
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[5]	7%	[6],[8]
Interest rate (as a percent)		12.44%	[3],[5]	12.45%	[6],[8]
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		15%	[15]	15%	[16]
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Interest rate (as a percent)						15%
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Interest rate (as a percent)		15%
Investment, Identifier [Axis]: California Splendor Holdings LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)				10%	[8],[16]	10%
Interest rate (as a percent)		14%		15.69%	[8],[16]	15.25%
Investment, Identifier [Axis]: California Splendor Holdings LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		14%
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[5]	6%	[8]	6%
Interest rate (as a percent)		11.38%	[5]	11.38%	[8]	11.25%
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		13%		13%		12.50%
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[7],[8]			6%
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8]			6%
Interest rate (as a percent)	[6],[8]			11.61%
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8]			6%
Interest rate (as a percent)	[6],[8]			11.61%
Investment, Identifier [Axis]: Central Moloney, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	6.75%
Interest rate (as a percent)	[3],[5]	12.08%
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		10%	[4],[5]	9%	[7],[8]	9%
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		10%	[5]	9%	[8]	9%
Interest rate (as a percent)		15.48%	[5]	14.48%	[8]	14.25%
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Spread (as a percent)		10%
Interest rate (as a percent)		15.48%
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[4],[5]	6%	[7],[8]	6%
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[5]	8%	[8]	8%
Interest rate (as a percent)		13.49%	[5]	13.49%	[8]	13.36%
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[5],[10]	7%	[6],[8],[25]
Interest rate (as a percent)		12.58%	[3],[5],[10]	12.60%	[6],[8],[25]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[5]	7%	[6],[8]
Interest rate (as a percent)		12.55%	[3],[5]	12.66%	[6],[8]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[5]	7%	[6],[8]
Interest rate (as a percent)		12.55%	[3],[5]	12.66%	[6],[8]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[5]	7%	[6],[8]
Interest rate (as a percent)		12.55%	[3],[5]	12.66%	[6],[8]
Investment, Identifier [Axis]: Charps, LLC, Unsecured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		10%		10%		10%
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		11.50%		11.50%		11.50%
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Interest rate (as a percent)		10%		10%		10%
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6%		6%	[8]	6%
Interest rate (as a percent)				11.69%	[8]	11.25%
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)				8%		8%
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		12.50%		12.50%		12.50%
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)						10.50%
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)						10.50%
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%		12%		12%
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)	[5]	9%
Interest rate (as a percent)	[5]	14.48%
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		9%		9%	[7],[8],[24]	9%
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		9%		9%	[8]	9%
Interest rate (as a percent)		14.48%		14.48%	[8]	14.25%
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		13.50%
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		13.50%		13.50%
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[5],[10]	8%	[6],[8],[26]
Interest rate (as a percent)		13.47%	[3],[5],[10]	13.52%	[6],[8],[26]
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[4],[5]	8%	[6],[8]
Interest rate (as a percent)	[6],[8]			13.52%
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	8%
Interest rate (as a percent)	[3],[5]	13.47%
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5],[20]	6.50%
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5],[20]	6.50%
Interest rate (as a percent)	[3],[5],[20]	11.83%
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5],[20]	6.75%
Interest rate (as a percent)	[3],[5],[20]	12.01%
Investment, Identifier [Axis]: Creative Foam Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[4],[5]	5.75%
Investment, Identifier [Axis]: Creative Foam Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	5.75%
Interest rate (as a percent)	[3],[5]	11.09%
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		13%		13%		13%
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)				12%		12%
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 1.1
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class A Preferred Member Units
Schedule of Investments [Line Items]
Interest rate (as a percent)		8%	[3]	8%	[6]
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class AA Preferred Member Units (non-voting)
Schedule of Investments [Line Items]
Interest rate (as a percent)		10%	[3],[15]	10%	[6],[16]
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		7.50%		7.50%		7.50%
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		10%		10%		10%
Investment, Identifier [Axis]: Digital Products Holdings LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		10%	[5]	10%	[8]	10%
Interest rate (as a percent)		15.38%	[5]	15.38%	[8]	15.25%
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)				14%
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		14%		14%		13%
Investment, Identifier [Axis]: Dreyfus Government Cash Management
Schedule of Investments [Line Items]
Interest rate (as a percent)		4.94%		4.98%
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[3],[5]	5%	[6],[8]
Interest rate (as a percent)		11.44%	[3],[5]	10.45%	[6],[8]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[5]	7%	[6],[8]
Interest rate (as a percent)		13.44%	[3],[5]	12.45%	[6],[8]
Investment, Identifier [Axis]: Dynata, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)	[1],[5]	8.75%
Interest rate (as a percent)	[1],[5]	14.21%
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[5],[10]	8%	[6],[8]
Interest rate (as a percent)		13.49%	[3],[5],[10]	13.50%	[6],[8]
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[5]	8%	[6],[8]
Interest rate (as a percent)		13.48%	[3],[5]	13.50%	[6],[8]
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[5]	8%	[6],[8]
Interest rate (as a percent)		13.48%	[3],[5]	13.50%	[6],[8]
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[5]	8%	[6],[8]
Interest rate (as a percent)		13.48%	[3],[5]	13.50%	[6],[8]
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 5
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[5]	8%	[6],[8]
Interest rate (as a percent)		13.48%	[3],[5]	13.50%	[6],[8]
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[4],[5]	6%	[7],[8]	6%
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%		12%		12%
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Interest rate (as a percent)		9%		9%		9%
Investment, Identifier [Axis]: Emerald Technologies Acquisition Co, Inc., Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		6.25%	[1],[5]	6.25%	[2],[8]
Interest rate (as a percent)		11.75%	[1],[5]	11.79%	[2],[8]
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		5.50%	[3],[5],[10]	5.50%	[6],[7],[8]
Interest rate (as a percent)	[3],[5],[10]	14%
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[5]	6.50%	[6],[8]
Interest rate (as a percent)		11.94%	[3],[5]	11.98%	[6],[8]
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[4],[5]	8%	[6],[7],[8]
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[5]	8%	[6],[8]
Interest rate (as a percent)		13.43%	[3],[5]	13.45%	[6],[8]
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[5]	7%	[6],[8]
Interest rate (as a percent)		13.60%	[3],[5]	12.61%	[6],[8]
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[5]	7%	[6],[8]
Interest rate (as a percent)		13.60%	[3],[5]	12.61%	[6],[8]
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC (Supplycore), Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		13%
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		13%
Investment, Identifier [Axis]: Fidelity Government Fund
Schedule of Investments [Line Items]
Interest rate (as a percent)		4.97%		5.01%
Investment, Identifier [Axis]: Fidelity Treasury
Schedule of Investments [Line Items]
Interest rate (as a percent)		4.95%		4.99%
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)						6.50%
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)						9%
Investment, Identifier [Axis]: Fuse, LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%	[1]	12%	[2]
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		8%		8%		9%
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6%		6%		6%
Interest rate (as a percent)		11.48%		11.48%		11.17%
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		8%		8%		8%
Interest rate (as a percent)		13.48%		13.48%		13.17%
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[4],[5]	6.50%	[6],[8],[27]
Interest rate (as a percent)	[6],[8],[27]			11.96%
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[7],[8]			6.50%
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[5]	6.50%	[6],[8]
Interest rate (as a percent)		11.94%	[3],[5]	11.96%	[6],[8]
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[5]	6.50%	[6],[8]
Interest rate (as a percent)		11.94%	[3],[5]	11.96%	[6],[8]
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[5]	6.50%	[6],[8]
Interest rate (as a percent)		11.94%	[3],[5]	11.96%	[6],[8]
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[3],[5],[10]	5.75%	[6],[8],[28]
Interest rate (as a percent)		11.48%	[3],[5],[10]	11.28%	[6],[8],[28]
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[3],[5]	5.75%	[6],[8]
Interest rate (as a percent)		11.45%	[3],[5]	11.38%	[6],[8]
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[3],[5]	5.75%	[6],[8]
Interest rate (as a percent)		11.48%	[3],[5]	11.25%	[6],[8]
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7.50%	[4],[5],[13]	7.50%	[7],[8],[14]	8.50%
Interest rate (as a percent)		3%		3%
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7.50%	[5],[13]	7.50%	[8],[14]	8%
Interest rate (as a percent)		10.50%	[5],[13]	10.50%	[8],[14]	11%
Interest rate (as a percent)		3%		3%
Investment, Identifier [Axis]: Garreco, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		8%		8%	[8],[29]	10%
Interest rate (as a percent)				9.50%	[8],[29]	12%
Interest rate (as a percent)		1.50%		1.50%
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[5]	6.75%	[6],[7],[8]
Interest rate (as a percent)	[3],[5]	11.93%
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[5]	6.75%	[6],[8]
Interest rate (as a percent)		11.93%	[3],[5]	12.22%	[6],[8]
Investment, Identifier [Axis]: Gulf Manufacturing, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[4],[19],[20]	7.63%
Investment, Identifier [Axis]: Gulf Manufacturing, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[19],[20]	7.63%
Interest rate (as a percent)	[19],[20]	13%
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		9.50%	[4],[5],[11]	9.50%	[7],[8]	9.50%
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		12.50%	[11]	12.50%		12.50%
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		3.50%	[3],[5]	9.50%	[6],[8],[24]
Interest rate (as a percent)		9.10%	[3],[5]	14.34%	[6],[8],[24]
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8],[24]			9.50%
Interest rate (as a percent)		2.50%	[3],[11]	14.34%	[6],[8],[24]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[4],[5]	6.50%	[6],[7],[8]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[5]	6.50%	[6],[8]
Interest rate (as a percent)		11.84%	[3],[5]	11.86%	[6],[8]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[4],[5]	6.50%	[6],[8]
Interest rate (as a percent)	[6],[8]			11.86%
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	6.50%
Interest rate (as a percent)	[3],[5]	11.84%
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 5
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	6.50%
Interest rate (as a percent)	[3],[5]	11.83%
Investment, Identifier [Axis]: HOWLCO LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[1],[5],[19],[20]	6%	[2],[8],[21],[22]
Interest rate (as a percent)		11.98%	[1],[5],[19],[20]	11.53%	[2],[8],[21],[22]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[5]	6%	[8]	6%
Interest rate (as a percent)		11.48%	[5]	11.65%	[8]	11.53%
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		12.50%		12.50%		12.50%
Investment, Identifier [Axis]: Houston Plating and Coatings, LLC, Unsecured Convertible Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		8%		8%		8%
Investment, Identifier [Axis]: Hybrid Promotions, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		8.25%	[3],[5]	8.25%	[6],[8]
Interest rate (as a percent)		15.81%	[3],[5]	15.91%	[6],[8]
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		13%		13%		13%
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		5.75%	[1],[4],[5]	5.75%	[2],[7],[8]
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		5.75%	[1],[5]	5.50%	[2],[8]
Interest rate (as a percent)		11.19%	[1],[5]	10.96%	[2],[8]
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		5.75%	[1],[5]	5.50%	[2],[8]
Interest rate (as a percent)		11.19%	[1],[5]	10.96%	[2],[8]
Investment, Identifier [Axis]: INW Manufacturing, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		5.75%	[1],[5]	5.75%	[2],[8]
Interest rate (as a percent)		11.35%	[1],[5]	11.36%	[2],[8]
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		9%	[5]	9%	[8]	9%
Interest rate (as a percent)		16.46%	[5]	16.59%	[8]
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		9%	[5]	9%	[8]	9%
Interest rate (as a percent)		16.46%	[5]	16.59%	[8]
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[5]	8%	[8]	8%
Interest rate (as a percent)		15.46%	[5]	15.59%	[8]	15.38%
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)		10%	[5]	10%	[8]	10%
Interest rate (as a percent)		17.46%	[5]	17.59%	[8]	17.38%
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[5]	7%	[6],[8],[30]
Interest rate (as a percent)		12.28%	[3],[5]	12.41%	[6],[8],[30]
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[5]	7%	[6],[8]
Interest rate (as a percent)		12.25%	[3],[5]	12.45%	[6],[8]
Investment, Identifier [Axis]: Implus Footcare, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		7.75%	[3],[5]	7.75%	[6],[8]
Interest rate (as a percent)		14.24%	[3],[5]	14.25%	[6],[8]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Interest rate (as a percent)	[6],[16],[31]			10%
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Interest rate (as a percent)	[6],[16],[31]			20%
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8],[32]			6.75%
Interest rate (as a percent)	[6],[8],[32]			12.22%
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8]			6.75%
Interest rate (as a percent)	[6],[8]			12.22%
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		13%		13%		13%
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8]			5.75%
Interest rate (as a percent)	[6],[8]			11.21%
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8]			5.75%
Interest rate (as a percent)	[6],[8]			11.21%
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.25%	[3],[4],[5]	6.25%	[6],[7],[8]
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6.25%	[3],[4],[5]	6.25%	[6],[7],[8]
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		6.25%	[3],[5]	6.25%	[6],[8]
Interest rate (as a percent)		11.58%	[3],[5]	11.65%	[6],[8]
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[5],[10]	8%	[6],[8],[33]
Interest rate (as a percent)		13.44%	[3],[5],[10]	13.53%	[6],[8],[33]
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[5]	8%	[6],[8]
Interest rate (as a percent)		13.43%	[3],[5]	13.55%	[6],[8]
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[5]	8%	[6],[8]
Interest rate (as a percent)		13.43%	[3],[5]	13.55%	[6],[8]
Investment, Identifier [Axis]: Integral Energy Services, Preferred Equity
Schedule of Investments [Line Items]
Interest rate (as a percent)		10%	[3],[15]	10%	[6]
Investment, Identifier [Axis]: Integral Energy Services, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		7.50%	[3],[5]	7.50%	[6],[8]	7.50%
Interest rate (as a percent)		13.06%	[3],[5]	13.16%	[6],[8]	13.04%
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		10%	[3],[10],[23]	10%	[6],[24],[34]
Interest rate (as a percent)		15.44%	[3],[10],[23]	15.48%	[6],[24],[34]
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[5],[11],[23]	7%	[6],[8],[12],[24]
Interest rate (as a percent)		12.44%	[3],[5],[11],[23]	12.46%	[6],[8],[12],[24]
Investment, Identifier [Axis]: Intermedia Holdings, Inc., Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)	[2],[8]			6%
Interest rate (as a percent)	[2],[8]			11.47%
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[4],[5],[10]	6.50%	[6],[8]
Interest rate (as a percent)	[6],[8]			12%
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[5]	6.50%	[6],[8]
Interest rate (as a percent)		11.98%	[3],[5]	12%	[6],[8]
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		13.50%		13.50%		13.50%
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		13.50%		13.50%		13.50%
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Interest rate (as a percent)		13.50%		13.50%		13.50%
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Interest rate (as a percent)		13.50%		13.50%		13.50%
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Interest rate (as a percent)		13.50%		13.50%		13.50%
Investment, Identifier [Axis]: Isagenix International, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[1],[5]	5.50%	[2],[8]
Interest rate (as a percent)		11.93%	[1],[5]	11.04%	[2],[8]
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[4],[5]	6.50%
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	5.50%
Interest rate (as a percent)	[3],[5]	11.10%
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	6.50%
Interest rate (as a percent)	[3],[5]	12.10%
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	7.50%
Interest rate (as a percent)	[3],[5]	13.10%
Investment, Identifier [Axis]: JDC Power Services, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[4],[5]	6.75%
Investment, Identifier [Axis]: JDC Power Services, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	6.75%
Interest rate (as a percent)	[3],[5]	12.08%
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.25%	[3],[5],[10]	6%	[6],[8],[35]
Interest rate (as a percent)		11.83%	[3],[5],[10]	11.64%	[6],[8],[35]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6.25%	[3],[5]	6%	[6],[8]
Interest rate (as a percent)		11.83%	[3],[5]	11.61%	[6],[8]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	6.25%
Interest rate (as a percent)	[3],[5]	11.83%
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[5],[9]	7%	[6],[8],[36]
Interest rate (as a percent)		12.47%	[3],[5],[9]	12.46%	[6],[8],[36]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		10%	[3],[5]	7%	[6],[8]
Interest rate (as a percent)		15.46%	[3],[5]	12.46%	[6],[8]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	7%
Interest rate (as a percent)	[3],[5]	12.48%
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.75%	[4],[5]	6.75%	[7],[24]	6.75%
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6.75%	[5]	6.75%	[8],[24]	6.75%
Interest rate (as a percent)		15%	[5]	15.25%	[8],[24]	15%
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		16%	[1],[5],[11]	18%	[2],[8],[12]
Interest rate (as a percent)		21.59%	[1],[5],[11]	23.63%	[2],[8],[12]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		16%	[1],[5],[11]	16%	[2],[8],[12]
Interest rate (as a percent)		21.59%	[1],[5],[11]	21.63%	[2],[8],[12]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		8.75%	[1],[5]	16%	[2],[8],[12]
Interest rate (as a percent)		14.35%	[1],[5]	21.63%	[2],[8],[12]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)	[1],[5]	8.75%
Interest rate (as a percent)	[1],[5]	14.35%
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)						11.50%
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)						11.50%
Interest rate (as a percent)		15%		15%		16.75%
Investment, Identifier [Axis]: JorVet Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%		12%		12%
Investment, Identifier [Axis]: KBK Industries, LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		9%		9%		9%
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7.25%	[3],[5]	9.25%	[6],[8]
Interest rate (as a percent)		12.73%	[3],[5]	14.75%	[6],[8]
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7.25%	[3],[5]	9.25%	[6],[8]
Interest rate (as a percent)		12.73%	[3],[5]	14.75%	[6],[8]
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%		12%		12%
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		9%		9%		9%
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7.25%	[3],[5]	7.25%	[6],[8]
Interest rate (as a percent)		12.68%	[3],[5]	12.71%	[6],[8]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7.25%	[3],[5]	7.25%	[6],[8]
Interest rate (as a percent)		12.68%	[3],[5]	12.71%	[6],[8]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		7.25%	[3],[5]	7.25%	[6],[8]
Interest rate (as a percent)		12.68%	[3],[5]	12.71%	[6],[8]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)		7.25%	[3],[5]	7.25%	[6],[8]
Interest rate (as a percent)		12.68%	[3],[5]	12.71%	[6],[8]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 5
Schedule of Investments [Line Items]
Spread (as a percent)		7.25%	[3],[5]	7.25%	[6],[8]
Interest rate (as a percent)		12.67%	[3],[5]	12.71%	[6],[8]
Investment, Identifier [Axis]: LLFlex, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		9%	[3],[5]	9%	[6],[8]
Interest rate (as a percent)		14.98%	[3],[5]	15.54%	[6],[8]
Investment, Identifier [Axis]: Lightbox Holdings, L.P., Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		5%	[1]	5%	[2]
Interest rate (as a percent)		10.46%	[1]	10.62%	[2]
Investment, Identifier [Axis]: Logix Acquisition Company, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		4.75%	[3],[5]	4.75%	[6],[8]
Interest rate (as a percent)		13.25%	[3],[5]	13.25%	[6],[8]
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[2],[8]			6%
Interest rate (as a percent)	[2],[8]			11.46%
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[2],[8]			6%
Interest rate (as a percent)	[2],[8]			11.46%
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)	[2],[8]			6%
Interest rate (as a percent)	[2],[8]			11.46%
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)	[2],[8]			6%
Interest rate (as a percent)	[2],[8]			11.46%
Investment, Identifier [Axis]: MH Corbin Holding LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		14%		13%	[24]	13%
Investment, Identifier [Axis]: MS Private Loan Fund I, LP, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)	[19],[37]	5%
Investment, Identifier [Axis]: MS Private Loan Fund II, LP, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		3.50%	[19],[37]	3.50%	[8],[21],[38]
Interest rate (as a percent)		8.88%	[19],[37]	8.88%	[8],[21],[38]
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.75%	[3],[4],[5]	6.75%	[6],[7],[8]
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7.50%	[3],[5]	6.75%	[6],[8]
Interest rate (as a percent)		12.99%	[3],[5]	12.28%	[6],[8]
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	7.50%
Interest rate (as a percent)	[3],[5]	12.99%
Investment, Identifier [Axis]: Market Force Information, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)						11%
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Preferred Equity
Schedule of Investments [Line Items]
Interest rate (as a percent)						8%
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)						12.75%
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Interest rate (as a percent)		8%	[15]	8%	[16]
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		10.75%		12.75%
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.25%	[3],[4],[5]	6.25%	[6],[7],[8]
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[3],[5]	6%	[6],[8]
Interest rate (as a percent)		11.42%	[3],[5]	11.46%	[6],[8]
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[5]	7%	[6],[8]
Interest rate (as a percent)		12.56%	[3],[5]	12.52%	[6],[8]
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.25%	[3],[5],[10]	6.25%	[6],[7],[8]
Interest rate (as a percent)	[3],[5],[10]	11.58%
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6.25%	[3],[5],[9]	6.25%	[6],[7],[8]
Interest rate (as a percent)	[3],[5],[9]	11.59%
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		5.25%	[3],[5]	5.25%	[6],[8]
Interest rate (as a percent)		10.60%	[3],[5]	10.64%	[6],[8]
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)		7.25%	[3],[5]	7.25%	[6],[8]
Interest rate (as a percent)		12.60%	[3],[5]	12.64%	[6],[8]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		14%	[3],[19],[20]	14%	[6],[21],[22]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		14%	[3],[19],[20]	14%	[6],[21],[22]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Interest rate (as a percent)		14%	[3],[19],[20]	14%	[6],[21],[22]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Unsecured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)	[3],[19],[20]	8%
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		10%		10%		10%
Investment, Identifier [Axis]: NRP Jones, LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%		12%		12%
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[5]	7%	[7],[8]	7%
Interest rate (as a percent)	[5]	12.48%
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)				12%		12%
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Interest rate (as a percent)		12.50%		12%		12%
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Interest rate (as a percent)		12.50%
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[5]	6.50%
Interest rate (as a percent)	[5]	11.88%
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		13.50%
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		10%
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		10%		10%		10%
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[4],[5]	7%	[6],[7],[8]
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[5]	7%	[6],[7],[8]
Interest rate (as a percent)	[3],[5]	12.45%
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8]			7%
Interest rate (as a percent)	[6],[8]			12.54%
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8]			7%
Interest rate (as a percent)	[6],[8]			12.52%
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[5]	6.50%	[8]	6.50%
Interest rate (as a percent)		11.98%	[5]	11.98%	[8]	11.75%
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%		12%		12%
Investment, Identifier [Axis]: OMi Topco, LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%		12%		12%
Investment, Identifier [Axis]: Obra Capital, Inc. (f/k/a Vida Capital, Inc.), Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)	[2]			6%
Interest rate (as a percent)	[2]			11.47%
Investment, Identifier [Axis]: Obra Capital, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[4],[5]	7.50%
Investment, Identifier [Axis]: Obra Capital, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	7.50%
Interest rate (as a percent)	[3],[5]	12.95%
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Preferred Stock
Schedule of Investments [Line Items]
Interest rate (as a percent)		7%		7%		7%
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%	[11]	12%	[12]	12%
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 1.1
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%	[11]	12%	[12]	12%
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 2.1
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%	[11]	12%	[12]	12%
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 3.1
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%	[11]	12%	[12]	12%
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 4.1
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Unsecured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		10%	[11]	10%	[12]	10%
Investment, Identifier [Axis]: OnPoint, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	7%
Interest rate (as a percent)	[3],[5]	12.33%
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)	[5]	10%
Interest rate (as a percent)	[5]	15.48%
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		10%		11%	[7],[8],[24]	11%
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		10%		11%	[8]	11%
Interest rate (as a percent)		15.48%		16.48%	[8]	16.25%
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		11%	[4],[5]	11%	[7],[8]	11%
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		11%	[5]	11%	[8]	11%
Interest rate (as a percent)		16.48%	[5]	16.48%	[8]	16.25%
Investment, Identifier [Axis]: PPL RVs, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		8.75%	[4],[5]	8.75%	[7],[8]	8.75%
Investment, Identifier [Axis]: PPL RVs, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		8.75%	[5]	8.75%	[8]	8.75%
Interest rate (as a percent)		14.23%	[5]	14.23%	[8]	13.63%
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.75%	[3],[5],[10],[19],[20]	7.25%	[6],[8],[21],[22],[39]
Interest rate (as a percent)		12.24%	[3],[5],[10],[19],[20]	12.80%	[6],[8],[21],[22],[39]
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6.75%	[3],[5],[19],[20]	7.25%	[6],[8],[21],[22]
Interest rate (as a percent)		12.34%	[3],[5],[19],[20]	12.88%	[6],[8],[21],[22]
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[7],[8]			5.75%
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8],[40]			5.75%
Interest rate (as a percent)	[6],[8],[40]			11.24%
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8]			5.75%
Interest rate (as a percent)	[6],[8]			11.25%
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%		12%		12%
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%		12%		12%
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 3
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%		12%		12%
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)				8%
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		13%		13%
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[4],[5]	6.75%	[6],[7],[8]
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[5]	6.75%	[6],[7],[8]
Interest rate (as a percent)	[3],[5]	11.84%
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[5]	6.75%	[6],[8]
Interest rate (as a percent)		11.82%	[3],[5]	12.12%	[6],[8]
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		5.50%	[3],[5]	6.85%	[6],[8]
Interest rate (as a percent)		10.83%	[3],[5]	12.28%	[6],[8]
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		5.50%	[3],[5]	6.85%	[6],[8]
Interest rate (as a percent)		10.83%	[3],[5]	12.20%	[6],[8]
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	5.50%
Interest rate (as a percent)	[3],[5]	10.83%
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	5.25%
Interest rate (as a percent)	[3],[5]	10.58%
Investment, Identifier [Axis]: Principle Environmental, LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		13%
Investment, Identifier [Axis]: Principle Environmental, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)				13%		13%
Investment, Identifier [Axis]: Purge Rite, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[4],[5]	8%	[6],[7],[8]
Investment, Identifier [Axis]: Purge Rite, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[5]	8%	[6],[8]
Interest rate (as a percent)		13.57%	[3],[5]	13.70%	[6],[8]
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.75%	[3],[5]	6.75%	[6],[8],[32]
Interest rate (as a percent)		12.19%	[3],[5]	12.22%	[6],[8],[32]
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6.75%	[3],[5]	6.75%	[6],[8]
Interest rate (as a percent)		12.19%	[3],[5]	12.21%	[6],[8]
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8]			7.75%
Interest rate (as a percent)	[6],[8]			13.21%
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8]			7.75%
Interest rate (as a percent)	[6],[8]			13.19%
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8]			7.75%
Interest rate (as a percent)	[6],[8]			13.19%
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)	[2],[8]			5.50%
Interest rate (as a percent)	[2],[8]			11.14%
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[5],[10]	6.50%	[6],[8],[41]
Interest rate (as a percent)		11.82%	[3],[5],[10]	18.47%	[6],[8],[41]
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[5]	6.50%	[6],[8]
Interest rate (as a percent)		11.82%	[3],[5]	11.88%	[6],[8]
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		12.50%	[11]	12.50%		12.50%
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.50%	[3],[4],[5]	6.50%	[6],[7],[8]
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[5]	6.50%	[6],[8]
Interest rate (as a percent)		12.56%	[3],[5]	12.16%	[6],[8]
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		9%	[3],[5]	8.50%	[6],[8]
Interest rate (as a percent)		14.56%	[3],[5]	14.16%	[6],[8]
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[3],[5]	6%	[6],[8]
Interest rate (as a percent)		13.52%	[3],[5]	13.54%	[6],[8]
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[3],[5]	6%	[6],[8]
Interest rate (as a percent)		13.52%	[3],[5]	13.54%	[6],[8]
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		11.75%		11.25%
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		12.62%	[42]	12.47%	[43]	12.78%
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Interest rate (as a percent)		12.62%
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7.50%	[3],[5]	8%	[6],[7],[8]
Interest rate (as a percent)	[3],[5]	12.98%
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7.50%	[3],[5]	8%	[6],[8]
Interest rate (as a percent)		12.98%	[3],[5]	13.72%	[6],[8]
Investment, Identifier [Axis]: Slick Innovations, LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		14%		14%		14%
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[3],[4],[5]	6%	[6],[8]
Interest rate (as a percent)	[6],[8]			11.46%
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[3],[5]	6%	[6],[8]
Interest rate (as a percent)		11.44%	[3],[5]	11.70%	[6],[8]
Investment, Identifier [Axis]: Stellant Systems, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		5.50%	[1],[5]	5.50%	[2],[8]
Interest rate (as a percent)		11.04%	[1],[5]	11.04%	[2],[8]
Investment, Identifier [Axis]: Stellant Systems, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		5.75%	[1],[5]	5.75%	[2],[8]
Interest rate (as a percent)		11.19%	[1],[5]	11.28%	[2],[8]
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		8.50%	[3],[11]	8.50%	[6],[12]	8.50%
Investment, Identifier [Axis]: Superior Rigging & Erecting Co., Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)				12%		12%
Investment, Identifier [Axis]: Team Public Choices, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		5%	[1],[5]	5%	[2],[8]
Interest rate (as a percent)		10.58%	[1],[5]	10.88%	[2],[8]
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%	[11],[23]	12%	[24]	12%
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%	[11],[23]	12%	[24]	12%
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)				13%
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		10%		13%		13%
Investment, Identifier [Axis]: Titan Meter Midco Corp., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[4],[5]	6.50%
Investment, Identifier [Axis]: Titan Meter Midco Corp., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	6.50%
Interest rate (as a percent)	[3],[5]	11.83%
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		13.50%		12%		12%
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7.15%	[1],[5],[11]	7.15%	[2],[8],[12]
Interest rate (as a percent)		12.50%	[1],[5],[11]	12.53%	[2],[8],[12]
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8]			6%
Interest rate (as a percent)	[6],[8]			11.46%
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8]			6.50%
Interest rate (as a percent)	[6],[8]			11.96%
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8]			6.50%
Interest rate (as a percent)	[6],[8]			11.96%
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		20%	[1],[15]	20%	[2],[16]	20%
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		20%	[1]	20%	[2]	20%
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 3
Schedule of Investments [Line Items]
Interest rate (as a percent)		19%	[1]	19%	[2]	19%
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 4
Schedule of Investments [Line Items]
Interest rate (as a percent)		13.50%	[1]	13.50%	[2]	13.50%
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Convertible Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)						15%
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Convertible Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		15%	[1]	15%	[2]
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Convertible Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		15%	[1]	15%	[2]
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)						7.50%
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)						7.50%
Investment, Identifier [Axis]: Universal Wellhead Services Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Interest rate (as a percent)		14%	[3],[44]	14%	[6],[31]	14%
Investment, Identifier [Axis]: Urgent DSO LLC, Preferred Equity
Schedule of Investments [Line Items]
Interest rate (as a percent)	[15]	9%
Investment, Identifier [Axis]: Urgent DSO LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		13.50%
Investment, Identifier [Axis]: UserZoom Technologies, Inc., Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		7.50%	[3],[5]	7.50%	[6],[8]
Interest rate (as a percent)		12.81%	[3],[5]	12.99%	[6],[8]
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[4],[5]	6%	[7],[8],[24]	6%
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		11.50%		11.50%		11.50%
Investment, Identifier [Axis]: Veregy Consolidated, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		5.25%	[1],[4],[5]	5.25%	[2],[7],[8]
Investment, Identifier [Axis]: Veregy Consolidated, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[1],[5]	6%	[2],[8]
Interest rate (as a percent)		11.59%	[1],[5]	11.64%	[2],[8]
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8]			7%
Interest rate (as a percent)	[6],[8]			12.63%
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)	[3],[5],[45]	12.59%
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	7%
Interest rate (as a percent)	[3],[5]	12.46%
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		10%		10%
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)						10%
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[4],[5]	7%	[6],[7],[8]
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[5]	7%	[6],[8]
Interest rate (as a percent)		12.45%	[3],[5]	12.54%	[6],[8]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6.25%	[3],[5]	6%	[6],[8],[35]
Interest rate (as a percent)		11.73%	[3],[5]	11.50%	[6],[8],[35]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6.25%	[3],[5]	6%	[6],[8]
Interest rate (as a percent)		11.73%	[3],[5]	11.50%	[6],[8]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		6.25%	[3],[5]	6%	[6],[8]
Interest rate (as a percent)		11.73%	[3],[5]	11.50%	[6],[8]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)		6.25%	[3],[5]	6%	[6],[8]
Interest rate (as a percent)		11.73%	[3],[5]	11.50%	[6],[8]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		5%	[3],[5],[9]	6%	[6],[8],[46]
Interest rate (as a percent)		10.33%	[3],[5],[9]	11.34%	[6],[8],[46]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		5%	[3],[5]	6%	[6],[8]
Interest rate (as a percent)		10.33%	[3],[5]	11.35%	[6],[8]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		5%	[3],[5]	6%	[6],[8]
Interest rate (as a percent)		10.33%	[3],[5]	11.35%	[6],[8]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[5]	7%	[6],[8],[47]
Interest rate (as a percent)		13.56%	[3],[5]	12.64%	[6],[8],[47]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		8%	[3],[5]	7%	[6],[8]
Interest rate (as a percent)		13.56%	[3],[5]	12.66%	[6],[8]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)		7%	[3],[5]	7%	[6],[8]
Interest rate (as a percent)		12.56%	[3],[5]	12.66%	[6],[8]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	9%
Interest rate (as a percent)	[3],[5]	14.56%
Investment, Identifier [Axis]: World Micro Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Interest rate (as a percent)		13%		13%		13%
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[3],[5]	5.25%	[6],[7],[8]
Interest rate (as a percent)	[3],[5]	11.44%
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		6%	[3],[5]	5.75%	[6],[8]
Interest rate (as a percent)		11.43%	[3],[5]	11.22%	[6],[8]
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)	[6],[8]			5.75%
Interest rate (as a percent)	[6],[8]			11.25%
Investment, Identifier [Axis]: YS Garments, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread (as a percent)		7.50%	[1],[5]	7.50%	[2],[8]
Interest rate (as a percent)		12.92%	[1],[5]	13%	[2],[8]
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[4],[5]	6%
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[4],[5]	6%
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	6%
Interest rate (as a percent)	[3],[5]	11.26%
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Spread (as a percent)	[3],[5]	6%
Interest rate (as a percent)	[3],[5]	11.33%
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Interest rate (as a percent)		12%		12%		12%
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Interest rate (as a percent)		6.50%		6.50%		6.50%
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Interest rate (as a percent)		14%		14%		14%
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread (as a percent)		7.25%	[3],[5]	7.25%	[6],[8],[48]
Interest rate (as a percent)		12.69%	[3],[5]	12.71%	[6],[8],[48]
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread (as a percent)		7.25%	[3],[5]	7.25%	[6],[8],[48]
Interest rate (as a percent)		12.69%	[3],[5]	12.71%	[6],[8],[48]
Bolder Panther Group, LLC
Schedule of Investments [Line Items]
Spread (as a percent)		8%		8%
Floor rate (as a percent)		1.50%		1.50%
SI East, LLC
Schedule of Investments [Line Items]
Interest rate (as a percent)		11.75%		11.25%
Jackmont Hospitality, Inc.
Schedule of Investments [Line Items]
Spread (as a percent)				7%
Floor rate (as a percent)				1%
Interface Security Systems, L.L.C
Schedule of Investments [Line Items]
Spread (as a percent)				10%
Imaging Business Machines, L.L.C.
Schedule of Investments [Line Items]
Spread (as a percent)				7%
Floor rate (as a percent)				1.50%
Computer Data Source, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				8%
Floor rate (as a percent)				1%
Inspire Aesthetics Management, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				8%
Floor rate (as a percent)				2%
Richardson Sales Solutions
Schedule of Investments [Line Items]
Spread (as a percent)				6.50%
Floor rate (as a percent)				2%
Industrial Services Acquisition, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				6.75%
Floor rate (as a percent)				1%
RA Outdoors LLC
Schedule of Investments [Line Items]
Spread (as a percent)				6.75%
Floor rate (as a percent)				1%
Zips Car Wash, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				7.25%
Floor rate (as a percent)				1%
PTL US Bidco, Inc
Schedule of Investments [Line Items]
Spread (as a percent)				7.25%
Floor rate (as a percent)				1%
Winter Services LLC
Schedule of Investments [Line Items]
Spread (as a percent)				7%
Floor rate (as a percent)				1%
GULF PACIFIC ACQUISITION, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				5.75%
Floor rate (as a percent)				1%
Paragon Healthcare, Inc.
Schedule of Investments [Line Items]
Spread (as a percent)				5.75%
Floor rate (as a percent)				1%
JTI Electrical & Mechanical, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				6%
Floor rate (as a percent)				1%
Watterson Brands, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				6%
Floor rate (as a percent)				1%
West Star Aviation Acquisition, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				6%
Floor rate (as a percent)				0.75%
Channel Partners Intermediateco, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				7%
Floor rate (as a percent)				2%
GS HVAM Intermediate, LLC
Schedule of Investments [Line Items]
Spread (as a percent)				6.50%
Floor rate (as a percent)				1%
SOFR | Vitesse Systems
Schedule of Investments [Line Items]
Spread (as a percent)		7%
Floor rate (as a percent)		1%
Prime | Vitesse Systems
Schedule of Investments [Line Items]
Spread (as a percent)		6%
Floor rate (as a percent)		2%
Minimum
Schedule of Investments [Line Items]
Spread (as a percent)		0.10%
Minimum | LIBOR or SOFR
Schedule of Investments [Line Items]
Spread (as a percent)				0.50%
Minimum | SOFR
Schedule of Investments [Line Items]
Spread (as a percent)		0.50%		0.10%
Maximum
Schedule of Investments [Line Items]
Spread (as a percent)		0.43%
Maximum | LIBOR or SOFR
Schedule of Investments [Line Items]
Floor rate (as a percent)				2%
Maximum | SOFR
Schedule of Investments [Line Items]
Spread (as a percent)		5.25%		0.43%
Weighted Average | LIBOR or SOFR
Schedule of Investments [Line Items]
Floor rate (as a percent)				1.20%
Weighted Average | SOFR
Schedule of Investments [Line Items]
Floor rate (as a percent)		1.24%
[1] Middle Market portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Middle Market portfolio investments. Middle Market portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Middle Market portfolio investments. Private Loan portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Private Loan portfolio investments. The position is unfunded and no interest income is being earned as of June 30, 2024. The position may earn a nominal unused facility fee on committed amounts. Index based floating interest rate is subject to contractual minimum interest rate. As noted in this schedule, 93% of the loans (based on the par amount) contain Term SOFR (“SOFR”) floors which range between 0.50% and 5.25%, with a weighted-average floor of 1.24%. Private Loan portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Private Loan portfolio investments. The position is unfunded and no interest income is being earned as of December 31, 2023. The position may earn a nominal unused facility fee on committed amounts. Index based floating interest rate is subject to contractual minimum interest rate. As noted in this schedule, 96% of these floating rate loans (based on the par amount) contain LIBOR or SOFR floors which range between 0.50% and 2.00%, with a weighted-average floor of 1.20%. Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of June 30, 2024. RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of June 30, 2024. Non-accrual and non-income producing debt investment. Non-accrual and non-income producing debt investment. (33) Index based floating interest rate is subject to contractual maximum base rate of 3.00%. Index based floating interest rate is subject to contractual maximum base rate of 3.00%. Income producing through dividends or distributions. Income producing through dividends or distributions. The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of SOFR plus 8.00% (Floor 1.50%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of SOFR+8.00% (Floor 1.50%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. Portfolio company headquarters are located outside of the United States. Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. Portfolio company headquarters are located outside of the United States. Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable. Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.00% (Floor 2.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+8.00% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.50% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+5.75% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. Index based floating interest rate is subject to contractual maximum base rate of 1.50%. Shares/Units represent ownership in a related Real Estate or HoldCo entity. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.75% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+8.00% (Floor 2.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+10.00%. RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.00% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.00% (Floor 1.00%). Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. Other Portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Other Portfolio investments. Other Portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Other Portfolio investments. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+5.75% (1.00%). Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.50% (Floor 2.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of 11.75% per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of 11.25% per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. (29) Shares/Units represent ownership in a related Real Estate or HoldCo entity. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.00% (0.75%). Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.00% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.25% (Floor 1.00%). Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023.

ORGANIZATION AND BASIS OF PRESE

ORGANIZATION AND BASIS OF PRESENTATION	6 Months Ended
	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION AND BASIS OF PRESENTATION	ORGANIZATION AND BASIS OF PRESENTATION 1. Organization Main Street Capital Corporation (“MSCC” or, together with its consolidated subsidiaries, “Main Street” or the “Company”) is a principal investment firm primarily focused on providing customized debt and equity financing to lower middle market (“LMM”) companies and debt capital to middle market (“Middle Market”) companies. Main Street’s portfolio investments are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in a variety of industry sectors. Main Street seeks to partner with entrepreneurs, business owners and management teams and generally provides “one-stop” financing alternatives within its LMM investment strategy. Main Street invests primarily in secured debt investments, equity investments, warrants and other securities of LMM companies based in the United States and in secured debt investments of Middle Market companies generally headquartered in the United States. MSCC was formed in March 2007 to operate as an internally managed business development company (“BDC”) under the Investment Company Act of 1940, as amended (the “1940 Act”). Because MSCC is internally managed, all of the executive officers and other employees are employed by MSCC. Therefore, MSCC does not pay any external investment advisory fees, but instead directly incurs the operating costs associated with employing investment and portfolio management professionals. MSCC wholly owns several investment funds, including Main Street Mezzanine Fund, LP (“MSMF”) and Main Street Capital III, LP (“MSC III” and, together with MSMF, the “Funds”), and each of their general partners. The Funds are each licensed as a Small Business Investment Company (“SBIC”) by the United States Small Business Administration (“SBA”). MSC Adviser I, LLC (the “External Investment Manager”) was formed in November 2013 as a wholly-owned subsidiary of Main Street to provide investment management and other services to parties other than Main Street (“External Parties”) and receives fee income for such services. MSCC has been granted no-action relief by the Securities and Exchange Commission (“SEC”) to allow the External Investment Manager to register as a registered investment adviser under the Investment Advisers Act of 1940, as amended. Since the External Investment Manager conducts all of its investment management activities for External Parties, it is accounted for as a portfolio investment of Main Street and is not included as a consolidated subsidiary in Main Street’s consolidated financial statements. MSCC has elected to be treated for U.S. federal income tax purposes as a regulated investment company (“RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (the “Code”). As a result, MSCC generally does not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that it distributes to its stockholders. MSCC has certain direct and indirect wholly-owned subsidiaries that have elected to be taxable entities (the “Taxable Subsidiaries”). The primary purpose of the Taxable Subsidiaries is to permit MSCC to hold equity investments in portfolio companies which are “pass-through” entities for tax purposes. MSCC also has certain direct and indirect wholly-owned subsidiaries formed for financing purposes (the “Structured Subsidiaries”). Unless otherwise noted or the context otherwise indicates, the terms “we,” “us,” “our,” the “Company” and “Main Street” refer to MSCC and its consolidated subsidiaries, which include the Funds, the Taxable Subsidiaries and the Structured Subsidiaries. 2. Basis of Presentation Main Street’s consolidated financial statements are prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”). The Company is an investment company following accounting and reporting guidance in Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 946, Financial Services—Investment Companies (“ASC 946”). For each of the periods presented herein, Main Street’s consolidated financial statements include the accounts of MSCC and its consolidated subsidiaries. The “Investment Portfolio,” as used herein, refers to all of Main Street’s investments in LMM portfolio companies, investments in Private Loan portfolio companies, investments in Middle Market portfolio companies, Other Portfolio investments, short-term portfolio investments and the investment in the External Investment Manager (see Note C — Fair Value Hierarchy for Investments — Portfolio Composition — Investment Portfolio Composition for additional discussion of Main Street’s Investment Portfolio and definitions for the defined terms Private Loan and Other Portfolio). Main Street’s results of operations for the three and six months ended June 30, 2024 and 2023, cash flows for the six months ended June 30, 2024 and 2023, and financial position as of June 30, 2024 and December 31, 2023, are presented on a consolidated basis. The effects of all intercompany transactions between MSCC and its consolidated subsidiaries have been eliminated in consolidation. The accompanying unaudited consolidated financial statements of Main Street are presented in conformity with U.S. GAAP for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Articles 6, 10 and 12 of Regulation S-X. Accordingly, certain disclosures accompanying annual consolidated financial statements prepared in accordance with U.S. GAAP are omitted. The unaudited consolidated financial statements and notes should be read in conjunction with the audited consolidated financial statements and notes thereto for the year ended December 31, 2023. In the opinion of management, the unaudited consolidated financial results included herein contain all adjustments, consisting solely of normal recurring accruals, considered necessary for the fair presentation of financial statements for the interim periods included herein. The results of operations for the three and six months ended June 30, 2024 are not necessarily indicative of the operating results to be expected for the full year. Financial statements prepared on a U.S. GAAP basis require management to make estimates and assumptions that affect the amounts and disclosures reported in the consolidated financial statements and accompanying notes. Such estimates and assumptions could change in the future as more information becomes known, which could impact the amounts reported and disclosed herein. Principles of Consolidation Under ASC 946, Main Street is precluded from consolidating other entities in which Main Street has equity investments, including those in which it has a controlling interest, unless the other entity is another investment company. An exception to this general principle in ASC 946 occurs if Main Street holds a controlling interest in an operating company that provides all or substantially all of its services directly to Main Street. Accordingly, as noted above, MSCC’s consolidated financial statements include the financial position and operating results for the Funds, the Taxable Subsidiaries and the Structured Subsidiaries. Main Street has determined that none of its portfolio investments qualify for this exception, including the investment in the External Investment Manager. Therefore, Main Street’s Investment Portfolio is carried on the Consolidated Balance Sheets at fair value, as discussed further in Note B.1. — Summary of Significant Accounting Policies — Valuation of the Investment Portfolio , with any adjustments to fair value recognized as “Net Unrealized Appreciation (Depreciation)” until the investment is realized, usually upon exit, resulting in any gain or loss being recognized as a “Net Realized Gain (Loss),” in both cases on the Consolidated Statements of Operations. Portfolio Investment Classification Main Street classifies its Investment Portfolio in accordance with the requirements of the 1940 Act. Under the 1940 Act, (a) “Control Investments” are defined as investments in which Main Street owns more than 25% of the voting securities or has rights to maintain greater than 50% of the board representation, (b) “Affiliate Investments” are defined as investments in which Main Street owns between 5% and 25% (inclusive) of the voting securities and does not have rights to maintain greater than 50% of the board representation and (c) “Non-Control/Non-Affiliate Investments” are defined as investments that are neither Control Investments nor Affiliate Investments. For purposes of determining the classification of its Investment Portfolio, Main Street has excluded consideration of any voting securities or board appointment rights held by third-party investment funds advised by the External Investment Manager.

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	6 Months Ended
	Jun. 30, 2024
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 1. Valuation of the Investment Portfolio Main Street accounts for its Investment Portfolio at fair value. As a result, Main Street follows the provisions of ASC 820, Fair Value Measurements and Disclosures (“ASC 820”). ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value and enhances disclosure requirements for fair value measurements. ASC 820 requires Main Street to assume that the portfolio investment is to be sold in the principal market to independent market participants, which may be a hypothetical market. Market participants are defined as buyers and sellers in the principal market that are independent, knowledgeable and willing and able to transact. Main Street’s portfolio strategy calls for it to invest primarily in illiquid debt and equity securities issued by privately held, LMM companies and debt securities issued by Middle Market companies that are generally larger in size than the LMM companies and that can be more liquid than the debt securities issued by LMM companies. Main Street categorizes some of its investments in LMM companies and Middle Market companies as Private Loan portfolio investments, which are primarily debt securities in privately held companies that have primarily been originated directly by Main Street or, to a lesser extent, through its strategic relationships with other investment funds on a collaborative basis through investments that are often referred to in the debt markets as “club deals” because of the small lender group size. In both cases, Main Street’s Private Loan investments are typically made to a company owned by or in the process of being acquired by a private equity sponsor. Private Loan investments are made in companies that are consistent with the size of companies Main Street invests in through its LMM portfolio and Middle Market portfolio. Main Street’s portfolio also includes Other Portfolio investments which primarily consist of investments that are not consistent with the typical profiles for its LMM, Private Loan or Middle Market portfolio investments, including investments which may be managed by third parties. Main Street’s portfolio may also include short-term portfolio investments that are atypical of Main Street’s LMM, Private Loan and Middle Market portfolio investments in that they are intended to be a short-term deployment of capital and are more liquid than investments within the other portfolios. Main Street’s portfolio investments may be subject to restrictions on resale. LMM investments and Other Portfolio investments generally have no established trading market, while Private Loan investments may include investments which have no established market or have established markets that are not active. Middle Market and short-term portfolio investments generally have established markets that are not active. Main Street determines in good faith the fair value of its Investment Portfolio pursuant to a valuation policy in accordance with ASC 820, with such valuation process approved by its Board of Directors and in accordance with the 1940 Act. Main Street’s valuation policies and processes are intended to provide a consistent basis for determining the fair value of Main Street’s Investment Portfolio. For LMM portfolio investments, Main Street generally reviews external events, including private mergers, sales and acquisitions involving comparable companies, and includes these events in the valuation process by using an enterprise value waterfall methodology (“Waterfall”) for its LMM equity investments and an income approach using a yield-to-maturity model (“Yield-to-Maturity”) valuation method for its LMM debt investments. For Private Loan and Middle Market portfolio investments in debt securities for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value the investment in a current hypothetical sale using the Yield-to-Maturity valuation method. For Middle Market and short-term portfolio investments in debt securities for which it has determined that third-party quotes or other independent prices are available, Main Street primarily uses quoted prices in the valuation process. Main Street determines the appropriateness of the use of third-party broker quotes, if any, in determining fair value based on its understanding of the level of actual transactions used by the broker to develop the quote and whether the quote was an indicative price or binding offer, the depth and consistency of broker quotes and the correlation of changes in broker quotes with underlying performance of the portfolio company and other market indices. For its Other Portfolio equity investments, Main Street generally calculates the fair value of the investment primarily based on the net asset value (“NAV”) of the fund and adjusts the fair value for other factors deemed relevant that would affect the fair value of the investment. All of the valuation approaches for Main Street’s portfolio investments estimate the value of the investment as if Main Street were to sell, or exit, the investment as of the measurement date. These valuation approaches consider the value associated with Main Street’s ability to control the capital structure of the portfolio company, as well as the timing of a potential exit. For valuation purposes, “control” portfolio investments are composed of debt and equity securities in companies for which Main Street has a controlling interest in the equity ownership of the portfolio company or the ability to nominate a majority of the portfolio company’s board of directors. For valuation purposes, “non-control” portfolio investments are generally composed of debt and equity securities in companies for which Main Street does not have a controlling interest in the equity ownership of the portfolio company or the ability to nominate a majority of the portfolio company’s board of directors. Under the Waterfall valuation method, Main Street estimates the enterprise value of a portfolio company using a combination of market and income approaches or other appropriate valuation methods, such as considering recent transactions in the equity securities of the portfolio company or third-party valuations of the portfolio company, and then performs a Waterfall calculation by allocating the enterprise value over the portfolio company’s securities in order of their preference relative to one another. The enterprise value is the fair value at which an enterprise could be sold in a transaction between two willing parties, other than through a forced or liquidation sale. Typically, privately held companies are bought and sold based on multiples of earnings before interest, taxes, depreciation and amortization (“EBITDA”), cash flows, net income, revenues, or in limited cases, book value. There is no single methodology for estimating enterprise value. For any one portfolio company, enterprise value is generally described as a range of values from which a single estimate of enterprise value is derived. In estimating the enterprise value of a portfolio company, Main Street analyzes various factors including the portfolio company’s historical and projected financial results. Due to SEC deadlines for Main Street’s quarterly and annual financial reporting, the operating results of a portfolio company used in the current period valuation are generally the results from the period ended three months prior to such valuation date and may include unaudited, projected, budgeted or pro forma financial information and may require adjustments for non-recurring items or to normalize the operating results that may require significant judgment in determining. In addition, projecting future financial results requires significant judgment regarding future growth assumptions. In evaluating the operating results, Main Street also analyzes the impact of exposure to litigation, loss of customers or other contingencies. After determining the appropriate enterprise value, Main Street allocates the enterprise value to investments in order of the legal priority of the various components of the portfolio company’s capital structure. In applying the Waterfall valuation method, Main Street assumes the loans are paid-off at the principal amount in a change in control transaction and are not assumed by the buyer, which Main Street believes is consistent with its past transaction history and standard industry practices. Under the Yield-to-Maturity valuation method, Main Street also uses the income approach to determine the fair value of debt securities based on projections of the discounted future free cash flows that the debt security will likely generate, including analyzing the discounted cash flows of interest and principal amounts for the debt security, as set forth in the associated loan agreements, as well as the financial position and credit risk of the portfolio company. Main Street’s estimate of the expected repayment date of its debt securities is generally the maturity date of the instrument, as Main Street generally intends to hold its loans and debt securities to maturity. The Yield-to-Maturity analysis also considers changes in leverage levels, credit quality, portfolio company performance, changes in market-based interest rates and other factors. Main Street will generally use the value determined by the Yield-to-Maturity analysis as the fair value for that security; however, because of Main Street’s general intent to hold its loans to maturity, the fair value will not exceed the principal amount of the debt security valued using the Yield-to-Maturity valuation method. A change in the assumptions that Main Street uses to estimate the fair value of its debt securities using the Yield-to-Maturity valuation method could have a material impact on the determination of fair value. If there is deterioration in credit quality or if a debt security is in workout status, Main Street may consider other factors in determining the fair value of the debt security, including the value attributable to the debt security from the enterprise value of the portfolio company or the proceeds that would most likely be received in a liquidation analysis. Under the NAV valuation method, for an investment in an investment fund that does not have a readily determinable fair value, Main Street measures the fair value of the investment predominately based on the NAV of the investment fund as of the measurement date and adjusts the investment’s fair value for factors known to Main Street that would affect that fund’s NAV, including, but not limited to, fair values for individual investments held by the fund if Main Street holds the same investment or for a publicly traded investment. In addition, in determining the fair value of the investment, Main Street considers whether adjustments to the NAV are necessary in certain circumstances, based on the analysis of any restrictions on redemption of Main Street’s investment as of the measurement date, recent actual sales or redemptions of interests in the investment fund, and expected future cash flows available to equity holders, including the rate of return on those cash flows compared to an implied market return on equity required by market participants, or other uncertainties surrounding Main Street’s ability to realize the full NAV of its interests in the investment fund. Pursuant to its internal valuation process and the requirements under the 1940 Act, Main Street performs valuation procedures on each of its portfolio investments quarterly. In addition to its internal valuation process, in arriving at estimates of fair value for its investments in its LMM portfolio companies, Main Street, among other things, consults with a nationally recognized independent financial advisory services firm (the “Financial Advisory Firm”). The Financial Advisory Firm analyzes and provides observations, recommendations and an assurance certification regarding Main Street’s determinations of the fair value of its LMM portfolio company investments. The Financial Advisory Firm is generally consulted relative to Main Street’s investments in each LMM portfolio company at least once every calendar year, and for Main Street’s investments in new LMM portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, Main Street may determine that it is not cost-effective, and as a result is not in its stockholders’ best interest, to consult with the Financial Advisory Firm on its investments in one or more LMM portfolio companies. Such instances include, but are not limited to, situations where the fair value of Main Street’s investment in a LMM portfolio company is determined to be insignificant relative to the total Investment Portfolio. Main Street consulted with and received an assurance certification from the Financial Advisory Firm in arriving at its determination of fair value for its investments in a total of 18 LMM portfolio companies during each of the three months ended June 30, 2024 and 2023, representing 21% and 23% of the total LMM portfolio at fair value as of June 30, 2024 and 2023, respectively. A total of 70 LMM portfolio companies were reviewed and certified by the Financial Advisory Firm during the trailing twelve months ended June 30, 2024, representing 94% of the total LMM portfolio at fair value as of June 30, 2024. Excluding its investments in LMM portfolio companies that, as of June 30, 2024, had not been in the Investment Portfolio for at least twelve months subsequent to the initial investment or whose primary purpose is to own real estate for which a third-party appraisal is obtained on at least an annual basis, 99% of the LMM portfolio at fair value was reviewed and certified by the Financial Advisory Firm during the trailing twelve months ended June 30, 2024. For valuation purposes, the significant majority of Main Street’s Private Loan portfolio investments are non-control investments. For Private Loan portfolio investments for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value such Private Loan debt investments in a current hypothetical sale using the Yield-to-Maturity valuation method and such Private Loan equity investments in a current hypothetical sale using the Waterfall valuation method. In addition to its internal valuation process, in arriving at estimates of fair value for its investments in its Private Loan portfolio companies, Main Street, among other things, consults with the Financial Advisory Firm. The Financial Advisory Firm analyzes and provides observations and recommendations and an assurance certification regarding Main Street’s determinations of the fair value of its Private Loan portfolio company investments. The Financial Advisory Firm is generally consulted relative to Main Street’s investments in each Private Loan portfolio company at least once every calendar year, and for Main Street’s investments in new Private Loan portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, Main Street may determine that it is not cost-effective, and as a result is not in its stockholders’ best interest, to consult with the Financial Advisory Firm on its investments in one or more Private Loan portfolio companies. Such instances include, but are not limited to, situations where the fair value of Main Street’s investment in a Private Loan portfolio company is determined to be insignificant relative to the total Investment Portfolio. Main Street consulted with and received an assurance certification from the Financial Advisory Firm in arriving at its determination of fair value for its investments in a total of 19 and 15 Private Loan portfolio companies during the three months ended June 30, 2024 and 2023, respectively, representing 22% and 24% of the total Private Loan portfolio at fair value as of June 30, 2024 and 2023, respectively. A total of 60 Private Loan portfolio companies were reviewed and certified by the Financial Advisory Firm during the trailing twelve months ended June 30, 2024, representing 72% of the total Private Loan portfolio at fair value as of June 30, 2024. Excluding its investments in Private Loan portfolio companies that, as of June 30, 2024, had not been in the Investment Portfolio for at least twelve months subsequent to the initial investment and its investments in Private Loan portfolio companies that were not reviewed because the investment is valued based upon third-party quotes or other independent pricing, 95% of the Private Loan portfolio at fair value was reviewed and certified by the Financial Advisory Firm during the trailing twelve months ended June 30, 2024. For valuation purposes, all of Main Street’s Middle Market portfolio investments are non-control investments. To the extent sufficient observable inputs are available to determine fair value, Main Street uses observable inputs to determine the fair value of these investments through obtaining third-party quotes or other independent pricing. For Middle Market portfolio investments for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value such Middle Market debt investments in a current hypothetical sale using the Yield-to-Maturity valuation method and such Middle Market equity investments in a current hypothetical sale using the Waterfall valuation method. Main Street generally consults on a limited basis with the Financial Advisory Firm in connection with determining the fair value of its Middle Market portfolio investments due to the nature of these investments. The vast majority (98% as of both June 30, 2024 and December 31, 2023) of the Middle Market portfolio investments (i) are valued using third-party quotes or other independent pricing services or (ii) Main Street has consulted with and received an assurance certification from the Financial Advisory Firm within the last twelve months. For valuation purposes, Main Street’s short-term portfolio investments have historically been comprised of non-control investments. To the extent sufficient observable inputs are available to determine fair value, Main Street uses observable inputs to determine the fair value of these investments through obtaining third-party quotes or other independent pricing. Because any short-term portfolio investments are typically valued using third-party quotes or other independent pricing services, Main Street generally does not consult with any financial advisory services firms in connection with determining the fair value of its short-term portfolio investments. For valuation purposes, the majority of Main Street’s Other Portfolio investments are non-control investments. Main Street’s Other Portfolio investments comprised 3.8% and 3.3% of Main Street’s Investment Portfolio at fair value as of June 30, 2024 and December 31, 2023, respectively. Similar to the LMM investment portfolio, market quotations for Other Portfolio equity investments are generally not readily available. For its Other Portfolio equity investments, Main Street generally determines the fair value of these investments using the NAV valuation method. For valuation purposes, Main Street’s investment in the External Investment Manager is a control investment. Market quotations are not readily available for this investment, and as a result, Main Street determines the fair value of the External Investment Manager using the Waterfall valuation method under the market approach. In estimating the enterprise value, Main Street analyzes various factors, including the entity’s historical and projected financial results, as well as its size, marketability and performance relative to the population of market comparables, and the valuations for comparable publicly traded companies and private transactions involving comparable companies. This valuation approach estimates the value of the investment as if Main Street were to sell, or exit, the investment. In addition, Main Street considers its ability to control the capital structure of the company, as well as the timing of a potential exit, in connection with determining the fair value of the External Investment Manager. Main Street consults with and receives an assurance certification from the Financial Advisory Firm in arriving at its determination of fair value for its investment in the External Investment Adviser on a quarterly basis, including as of June 30, 2024 and December 31, 2023. Due to the inherent uncertainty in the valuation process, Main Street’s determination of fair value for its Investment Portfolio may differ materially from the values that would have been determined had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that may occur over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently assigned. Main Street determines the fair value of each individual investment and records changes in fair value as unrealized appreciation or depreciation. Main Street uses an internally developed portfolio investment rating system in connection with its investment oversight, portfolio management and analysis and investment valuation procedures for its LMM, Private Loan and Middle Market portfolio companies. This system takes into account both quantitative and qualitative factors of each LMM, Private Loan and Middle Market portfolio company. Rule 2a-5 under the 1940 Act permits a BDC’s board of directors to designate its executive officers or investment adviser as a valuation designee to determine the fair value for its investment portfolio, subject to the active oversight of the board. Main Street’s Board of Directors has approved policies and procedures pursuant to Rule 2a-5 (the “Valuation Procedures”) and has designated a group of its executive officers to serve as the Board of Directors’ valuation designee. Main Street believes its Investment Portfolio as of June 30, 2024 and December 31, 2023 approximates fair value as of those dates based on the markets in which it operates and other conditions in existence on those reporting dates. 2. Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the period. Actual results may differ from these estimates under different conditions or assumptions. Additionally, as explained in Note B.1. — Summary of Significant Accounting Policies — Valuation of the Investment Portfolio , the consolidated financial statements include investments in the Investment Portfolio whose values have been estimated by Main Street, pursuant to valuation policies and procedures approved and overseen by Main Street’s Board of Directors, in the absence of readily ascertainable market values. Because of the inherent uncertainty of the Investment Portfolio valuations, those estimated values may differ materially from the values that would have been determined had a ready market for the securities existed. Macroeconomic factors, including pandemics, risk of recession, inflation, supply chain constraints or disruptions, geopolitical disruptions and changing market index interest rates, and the related effect on the U.S. and global economies, have impacted, and may continue to impact, the businesses and operating results of certain of Main Street’s portfolio companies. As a result of these and other current effects of macroeconomic factors, as well as the uncertainty regarding the extent and duration of their impact, the valuation of Main Street’s Investment Portfolio has and may continue to experience increased volatility. 3. Cash and Cash Equivalents Cash and cash equivalents consist of cash and highly liquid investments with an original maturity of three months or less at the date of purchase. Cash and cash equivalents are carried at cost, which approximates fair value. At June 30, 2024 and December 31, 2023, the Company had $6.6 million and $15.2 million, respectively, of cash equivalents invested in AAA-rated money market funds pending investment in the Company’s primary investment strategies. These highly liquid investments are included in the Consolidated Schedule of Investments. At June 30, 2024 and December 31, 2023, cash balances totaling $19.8 million and $40.1 million, respectively, exceeded Federal Deposit Insurance Corporation insurance protection levels, subjecting the Company to risk related to the uninsured balance. 4. Interest, Dividend and Fee Income Main Street records interest and dividend income on the accrual basis to the extent amounts are expected to be collected. Dividend income is recorded when dividends are declared by the portfolio company or at such other time that an obligation exists for the portfolio company to make a distribution. Main Street evaluates accrued interest and dividend income periodically for collectability. When a loan or debt security becomes 90 days or more past due, and if Main Street otherwise does not expect the debtor to be able to service its debt obligation, Main Street will generally place the loan or debt security on non-accrual status and cease recognizing interest income on that loan or debt security until the borrower has demonstrated the ability and intent to pay contractual amounts due. If a loan or debt security’s status significantly improves regarding the debtor’s ability to service the debt obligation, or if a loan or debt security is sold or written off, Main Street removes it from non-accrual status. As of June 30, 2024, investments on non-accrual status comprised 1.2% of Main Street’s total Investment Portfolio at fair value and 3.6% at cost. As of December 31, 2023, investments on non-accrual status comprised 0.6% of Main Street’s total Investment Portfolio at fair value and 2.3% at cost. Main Street holds certain debt and preferred equity instruments in its Investment Portfolio that contain PIK interest and cumulative dividend provisions. The PIK interest, computed at the contractual rate specified in each debt agreement, is periodically added to the principal balance of the debt and is recorded as interest income. Thus, the actual collection of this interest may be deferred until the time of debt principal repayment. Cumulative dividends are recorded as dividend income, and any dividends in arrears are added to the balance of the preferred equity investment. The actual collection of these dividends in arrears may be deferred until such time as the preferred equity is redeemed or sold. To maintain RIC tax treatment (as discussed in Note B.10. — Summary of Significant Accounting Policies — Income Taxes below), these non-cash sources of income may need to be paid out to stockholders in the form of distributions, even though Main Street may not have collected the PIK interest and cumulative dividends in cash. Main Street stops accruing PIK interest and cumulative dividends and writes off any accrued and uncollected interest and dividends in arrears when it determines that such PIK interest and dividends in arrears are no longer collectible. For the three months ended June 30, 2024 and 2023, (i) 3.7% and 1.8%, respectively, of Main Street’s total investment income was attributable to PIK interest income not paid currently in cash and (ii) 0.5% and 0.2%, respectively, of Main Street’s total investment income was attributable to cumulative dividend income not paid currently in cash. For the six months ended June 30, 2024 and 2023, (i) 3.5% and 2.1%, respectively, of Main Street’s total investment income was attributable to PIK interest income not paid currently in cash and (ii) 0.4% and 0.3%, respectively, of Main Street’s total investment income was attributable to cumulative dividend income not paid currently in cash. Main Street may periodically provide services, including structuring and advisory services, to its portfolio companies or other third parties. For services that are separately identifiable and evidence exists to substantiate fair value, fee income is recognized as earned, which is generally when the investment or other applicable transaction closes. Fees received in connection with debt financing transactions for services that do not meet these criteria are treated as debt origination fees and are generally deferred and accreted into income over the life of the financing. A presentation of total investment income Main Street received from its Investment Portfolio in each of the periods presented is as follows: Three Months Ended Six Months Ended 2024 2023 2024 2023 (dollars in thousands) Interest, fee and dividend income: Interest income $ 100,031 $ 97,273 $ 200,136 $ 190,666 Dividend income 26,688 25,599 49,479 49,821 Fee income 5,435 4,711 14,144 7,351 Total interest, fee and dividend income $ 132,154 $ 127,583 $ 263,759 $ 247,838 5. Deferred Financing Costs Deferred financing costs include commitment fees and other direct costs related to Main Street’s multi-year revolving credit facility (the “Corporate Facility”) and special purpose vehicle revolving credit facility (the “SPV Facility” and, together with the Corporate Facility, the “Credit Facilities”) and its unsecured notes, as well as the commitment fees and leverage fees (3.4% of the total commitment and draw amounts, as applicable) on the SBIC debentures. See further discussion of Main Street’s debt in Note E — Debt . Deferred financing costs in connection with the Credit Facilities are capitalized as an asset. Deferred financing costs in connection with all other debt arrangements are a direct deduction from the principal amount outstanding. 6. Equity Offering Costs The Company’s offering costs are charged against the proceeds from equity offerings when the proceeds are received. 7. Unearned Income—Debt Origination Fees and Original Issue Discount and Discounts / Premiums to Par Value Main Street capitalizes debt origination fees received in connection with financings and reflects such fees as unearned income netted against the applicable debt investments. The unearned income from the fees is accreted into income over the life of the financing. In connection with its portfolio debt investments, Main Street sometimes receives nominal cost warrants or warrants with an exercise price below the fair value of the underlying equity (together, “nominal cost equity”) that are valued as part of the negotiation process with the particular portfolio company. When Main Street receives nominal cost equity, it allocates its cost basis in its investment between its debt security and its nominal cost equity at the time of origination based on amounts negotiated with the particular portfolio company. The allocated amounts are based upon the fair value of the nominal cost equity, which is then used to determine the allocation of cost to the debt security. Any discount recorded on a debt investment resulting from this allocation is reflected as unearned income, which is netted against the applicable debt investment, and accreted into interest income over the life of the debt investment. The actual collection of this interest is deferred until the time of debt principal repayment. Main Street may also purchase debt securities at a discount or at a premium to the par value of the debt security. In the case of a purchase at a discount, Main Street records the investment at the par value of the debt security net of the discount, and the discount is accreted into interest income over the life of the debt investment. In the case of a purchase at a premium, Main Street records the investment at the par value of the debt security plus the premium, and the premium is amortized as a reduction to interest income over the life of the debt investmen

FAIR VALUE HIERARCHY FOR INVEST

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION	6 Months Ended
	Jun. 30, 2024
Fair Value Disclosures [Abstract]
FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION	FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value, and enhances disclosure requirements for fair value measurements. Main Street accounts for its investments at fair value. Fair Value Hierarchy In accordance with ASC 820, Main Street has categorized its investments based on the priority of the inputs to the valuation technique into a three-level fair value hierarchy. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical investments (Level 1) and the lowest priority to unobservable inputs (Level 3). Investments recorded on Main Street’s Consolidated Balance Sheets are categorized based on the inputs to the valuation techniques as follows: Level 1—Investments whose values are based on unadjusted quoted prices for identical assets in an active market that Main Street has the ability to access (examples include investments in active exchange-traded equity securities and investments in most U.S. government and agency securities). Level 2—Investments whose values are based on quoted prices in markets that are not active or model inputs that are observable either directly or indirectly for substantially the full term of the investment. Level 2 inputs include the following: • Quoted prices for similar assets in active markets (for example, investments in restricted stock); • Quoted prices for identical or similar assets in non-active markets (for example, investments in thinly traded public companies); • Pricing models whose inputs are observable for substantially the full term of the investment (for example, market interest rate indices); and • Pricing models whose inputs are derived principally from, or corroborated by, observable market data through correlation or other means for substantially the full term of the investment. Level 3—Investments whose values are based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement (for example, investments in illiquid securities issued by privately held companies). These inputs reflect management’s own assumptions about the assumptions a market participant would use in pricing the investment. As required by ASC 820, when the inputs used to measure fair value fall within different levels of the hierarchy, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement in its entirety. For example, a Level 3 fair value measurement may include inputs that are observable (Levels 1 and 2) and unobservable (Level 3). Therefore, unrealized appreciation and depreciation related to such investments categorized within the Level 3 tables below may include changes in fair value that are attributable to both observable inputs (Levels 1 and 2) and unobservable inputs (Level 3). As of June 30, 2024 and December 31, 2023, all of Main Street’s LMM portfolio investments consisted of illiquid securities issued by privately held companies and the fair value determination for these investments primarily consisted of unobservable inputs. As a result, all of Main Street’s LMM portfolio investments were categorized as Level 3 as of June 30, 2024 and December 31, 2023. As of June 30, 2024 and December 31, 2023, Main Street’s Private Loan portfolio investments primarily consisted of investments in secured debt investments. The fair value determination for these investments consisted of a combination of observable inputs in non-active markets for which sufficient observable inputs were not available to determine the fair value of these investments and unobservable inputs. As a result, all of Main Street’s Private Loan portfolio investments were categorized as Level 3 as of June 30, 2024 and December 31, 2023. As of June 30, 2024 and December 31, 2023, Main Street’s Middle Market portfolio investments consisted primarily of investments in secured and unsecured debt investments and independently rated debt investments. The fair value determination for these investments consisted of a combination of observable inputs in non-active markets for which sufficient observable inputs were not available to determine the fair value of these investments and unobservable inputs. As a result, all of Main Street’s Middle Market portfolio investments were categorized as Level 3 as of June 30, 2024 and December 31, 2023. As of June 30, 2024 and December 31, 2023, Main Street’s Other Portfolio investments consisted of illiquid securities issued by privately held entities and the fair value determination for these investments primarily consisted of unobservable inputs. As a result, all of Main Street’s Other Portfolio investments were categorized as Level 3 as of June 30, 2024 and December 31, 2023. As of June 30, 2024 and December 31, 2023, Main Street did not hold any short-term portfolio investments. As of June 30, 2024 and December 31, 2023, all money market funds included in cash and cash equivalents were valued using Level 1 inputs. The fair value determination of each portfolio investment categorized as Level 3 required one or more of the following unobservable inputs: • Financial information obtained from each portfolio company, including unaudited statements of operations and balance sheets for the most recent period available as compared to budgeted numbers; • Current and projected financial condition of the portfolio company; • Current and projected ability of the portfolio company to service its debt obligations; • Type and amount of collateral, if any, underlying the investment; • Current financial ratios (e.g., fixed charge coverage ratio, interest coverage ratio and net debt/EBITDA ratio) applicable to the investment; • Current liquidity of the investment and related financial ratios (e.g., current ratio and quick ratio); • Pending debt or capital restructuring of the portfolio company; • Projected operating results of the portfolio company; • Current information regarding any offers to purchase the investment; • Current ability of the portfolio company to raise any additional financing as needed; • Changes in the economic environment which may have a material impact on the operating results of the portfolio company; • Internal occurrences that may have an impact (both positive and negative) on the operating performance of the portfolio company; • Qualitative assessment of key management; • Contractual rights, obligations or restrictions associated with the investment; and • Other factors deemed relevant. The use of significant unobservable inputs creates uncertainty in the measurement of fair value as of the reporting date. The significant unobservable inputs used in the fair value measurement of Main Street’s LMM equity securities, which are generally valued through an average of the discounted cash flow technique and the market comparable/enterprise value technique (unless one of these approaches is determined to not be appropriate), are (i) EBITDA multiples and (ii) the weighted-average cost of capital (“WACC”). Significant increases (decreases) in EBITDA multiple inputs in isolation would result in a significantly higher (lower) fair value measurement. On the contrary, significant increases (decreases) in WACC inputs in isolation would result in a significantly lower (higher) fair value measurement. The significant unobservable inputs used in the fair value measurement of Main Street’s LMM, Private Loan and Middle Market debt securities are (i) risk adjusted discount rates used in the Yield-to-Maturity valuation technique (see Note B.1. — Summary of Significant Accounting Policies — Valuation of the Investment Portfolio ) and (ii) the percentage of expected principal recovery. Significant increases (decreases) in any of these discount rates in isolation would result in a significantly lower (higher) fair value measurement. Significant increases (decreases) in any of these expected principal recovery percentages in isolation would result in a significantly higher (lower) fair value measurement. However, due to the nature of certain investments, fair value measurements may be based on other criteria, such as third-party appraisals of collateral and fair values as determined by independent third parties, which are not presented in the tables below. The following tables provide a summary of the significant unobservable inputs used to fair value Main Street’s Level 3 portfolio investments as of June 30, 2024 and December 31, 2023: Type of Fair Value as of June 30, 2024 (in thousands) Valuation Technique Significant Unobservable Inputs Range (4) Weighted Average (4) Median (4) Equity investments $ 1,498,912 Discounted cash flow WACC 9.2% - 22.9% 14.2 % 15.1 % Market comparable / Enterprise value EBITDA multiple (1) (3) 4.5x - 8.9x (2) 7.1x 6.3x Debt investments $ 3,103,832 Discounted cash flow Risk adjusted discount factor (5) 9.6% - 18.4% (2) 12.9 % 13.0 % Expected principal recovery percentage 0.0% - 100.0% 99.4 % 100.0 % Debt investments $ 134,767 Market approach Third-party quote 40.8 - 101.0 92.7 97.9 Total Level 3 investments $ 4,737,511 ____________________ (1) EBITDA may include proforma adjustments and/or other addbacks based on specific circumstances related to each investment. (2) Range excludes outliers that are greater than one standard deviation from the mean. Including these outliers, the range for EBITDA multiple is 2.0x - 15.7x and the range for risk adjusted discount factor is 5.0% - 31.7%. (3) The fair value of the equity investment in the External Investment Manager is based on a fee multiple of 7.1x. The fair value determination is based on a discounted, blended multiple based on the multiples for similar businesses in active markets and actual multiples used in private transactions. (4) Does not include investments for which the valuation technique does not include the use of the applicable fair value input. (5) Discount rate includes the effect of the standard SOFR base rate, as applicable. Type of Investment Fair Value as of December 31, 2023 (in thousands) Valuation Technique Significant Unobservable Inputs Range (4) Weighted Average (4) Median (4) Equity investments $ 1,402,354 Discounted cash flow WACC 9.7% - 22.7% 14.5 % 15.5 % Market comparable / Enterprise value EBITDA multiple (1) (3) 4.8x - 8.9x (2) 7.1x 6.4x Debt investments $ 2,720,425 Discounted cash flow Risk adjusted discount factor (5) 9.8% - 18.0% (2) 12.9 % 13.0 % Expected principal recovery percentage 0.0% - 100.0% 99.7 % 100.0 % Debt investments $ 163,492 Market approach Third-party quote 3.0 - 100.0 89.8 92.4 Total Level 3 investments $ 4,286,271 ____________________ (1) EBITDA may include proforma adjustments and/or other addbacks based on specific circumstances related to each investment. (2) Range excludes outliers that are greater than one standard deviation from the mean. Including these outliers, the range for EBITDA multiple is 2.0x - 15.7x and the range for risk adjusted discount factor is 7.0% - 31.6%. (3) The fair value of the equity investment in the External Investment Manager is based on a fee multiple of 7.2x. The fair value determination is based on a discounted, blended multiple based on the multiples for similar businesses in active markets and actual multiples used in private transactions. (4) Does not include investments for which the valuation technique does not include the use of the applicable fair value input. (5) Discount rate includes the effect of the standard SOFR base rate, as applicable. The following tables provide a summary of changes in fair value of Main Street’s Level 3 portfolio investments for the six months ended June 30, 2024 and 2023 (amounts in thousands): Type of Investment Fair Value as of December 31, 2023 Transfers Into Level 3 Hierarchy Redemptions/ Repayments New Investments Net Changes from Unrealized to Realized Net Unrealized Appreciation (Depreciation) Other(1) Fair Value as of June 30, 2024 Debt $ 2,883,917 $ — $ (406,233) $ 753,750 $ 7,468 $ (19,162) $ 18,859 $ 3,238,599 Equity 1,395,744 — (28,445) 65,122 (960) 75,391 (18,859) 1,487,993 Equity Warrant 6,610 — — 3,920 — 389 — 10,919 $ 4,286,271 $ — $ (434,678) $ 822,792 $ 6,508 $ 56,618 $ — $ 4,737,511 ____________________ (1) Includes the impact of non-cash conversions. These transactions represent non-cash investing activities. See additional cash flow information in the Consolidated Statements of Cash Flows. Type of Investment Fair Value as of December 31, 2022 Transfers Into Level 3 Hierarchy Redemptions/ Repayments New Investments Net Changes from Unrealized to Realized Net Unrealized Appreciation (Depreciation) Other(1) Fair Value as of June 30, 2023 Debt $ 2,928,196 $ — $ (421,050) $ 376,859 $ 100,164 $ (23,390) $ (29,746) $ 2,931,033 Equity 1,166,643 — (35,199) 48,210 4,126 56,358 32,322 1,272,460 Equity Warrant 5,434 — — 2,091 — 2,101 (2,576) 7,050 $ 4,100,273 $ — $ (456,249) $ 427,160 $ 104,290 $ 35,069 $ — $ 4,210,543 ____________________ (1) Includes the impact of non-cash conversions. These transactions represent non-cash investing activities. See additional cash flow information in the Consolidated Statements of Cash Flows. At June 30, 2024 and December 31, 2023, Main Street’s investments at fair value were categorized as follows in the fair value hierarchy for ASC 820 purposes: Fair Value Measurements (in thousands) At June 30, 2024 Fair Value Quoted Prices in Significant Other Significant LMM portfolio investments $ 2,439,993 $ — $ — $ 2,439,993 Private Loan portfolio investments 1,747,502 — — 1,747,502 Middle Market portfolio investments 183,965 — — 183,965 Other Portfolio investments 179,491 — — 179,491 External Investment Manager 186,560 — — 186,560 Total investments $ 4,737,511 $ — $ — $ 4,737,511 Fair Value Measurements (in thousands) At December 31, 2023 Fair Value Quoted Prices in Significant Other Significant LMM portfolio investments $ 2,273,000 $ — $ — $ 2,273,000 Private Loan portfolio investments 1,453,549 — — 1,453,549 Middle Market portfolio investments 243,695 — — 243,695 Other Portfolio investments 141,964 — — 141,964 External Investment Manager 174,063 — — 174,063 Total investments $ 4,286,271 $ — $ — $ 4,286,271 Investment Portfolio Composition Main Street’s principal investment objective is to maximize its portfolio’s total return by generating current income from its debt investments and current income and capital appreciation from its equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. Main Street seeks to achieve its investment objective primarily through its LMM and Private Loan investment strategies. Main Street’s LMM investment strategy is focused on investments in secured debt and equity in privately held, LMM companies based in the United States. Main Street’s LMM portfolio companies generally have annual revenues between $10 million and $150 million, and its LMM investments generally range in size from $5 million to $100 million. The LMM debt investments are typically secured by a first priority lien on the assets of the portfolio company, can include either fixed or floating rate terms and generally have a term of between five Main Street’s private loan (“Private Loan”) investment strategy is focused on investments in privately held companies that are generally consistent with the size of its LMM portfolio companies or Middle Market portfolio companies, and its Private Loan investments generally range in size from $10 million to $100 million. Main Street’s Private Loan investments primarily consist of debt securities that have primarily been originated directly by Main Street or, to a lesser extent, through its strategic relationships with other investment funds on a collaborative basis through investments that are often referred to in the debt markets as “club deals” because of the small lender group size. In both cases, our Private Loan investments are typically made to a company owned by or in the process of being acquired by a private equity sponsor. Main Street’s Private Loan portfolio debt investments are generally secured by a first priority lien on the assets of the portfolio company and typically have a term of between three Main Street has also historically maintained a Middle Market investment strategy which is focused on investments in syndicated loans to or debt securities in Middle Market companies, which Main Street defines as companies with annual revenues between $150 million and $1.5 billion, and its Middle Market investments generally range in size from $3 million to $25 million. Main Street’s Middle Market portfolio debt investments are generally secured by a first priority lien on the assets of the portfolio company and typically have an expected duration of between three Main Street’s other portfolio (“Other Portfolio”) investments primarily consist of investments that are not consistent with the typical profiles for its LMM, Private Loan or Middle Market portfolio investments, including investments which may be managed by third parties. In the Other Portfolio, Main Street may incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds. For Other Portfolio investments, Main Street generally receives distributions related to the assets held by the portfolio company. Those assets are typically expected to be liquidated over a five Based upon Main Street’s liquidity and capital structure management activities, Main Street’s Investment Portfolio may also include short-term portfolio investments that are atypical of Main Street’s LMM, Private Loan and Middle Market portfolio investments in that they are intended to be a short-term deployment of capital. Those assets are typically expected to be liquidated in one year or less. These short-term portfolio investments are not expected to be a significant portion of the overall Investment Portfolio. Main Street’s external asset management business is conducted through its External Investment Manager. The External Investment Manager earns management fees based on the assets under management for External Parties and may earn incentive fees, or a carried interest, based on the performance of the assets managed. Main Street entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with MSC Income Fund, Inc. (“MSC Income”) and its other clients. Through this agreement, Main Street shares employees with the External Investment Manager, including their related infrastructure, business relationships, management expertise and capital raising capabilities. Main Street allocates the related expenses to the External Investment Manager pursuant to the sharing agreement. Main Street’s total expenses for the three months ended June 30, 2024 and 2023 are net of expenses allocated to the External Investment Manager of $5.9 million and $5.7 million, respectively, and for the six months ended June 30, 2024 and 2023 of $11.4 million and $10.7 million, respectively. Investment income, consisting of interest, dividends and fees, can fluctuate dramatically due to various factors, including the level of new investment activity, repayments of debt investments or sales of equity interests. Investment income in any given year could also be highly concentrated among several portfolio companies. For the three and six months ended June 30, 2024 and 2023, Main Street did not record investment income from any single portfolio company in excess of 10% of total investment income. The following tables provide a summary of Main Street’s investments in the LMM, Private Loan and Middle Market portfolios as of June 30, 2024 and December 31, 2023 (this information excludes Other Portfolio investments and the External Investment Manager, which are discussed further below). As of June 30, 2024 LMM (a) Private Loan Middle Market (dollars in millions) Number of portfolio companies 83 92 19 Fair value $ 2,440.0 $ 1,747.5 $ 184.0 Cost $ 1,920.9 $ 1,768.0 $ 220.6 Debt investments as a % of portfolio (at cost) 72.6 % 95.4 % 88.3 % Equity investments as a % of portfolio (at cost) 27.4 % 4.6 % 11.7 % % of debt investments at cost secured by first priority lien 99.2 % 99.9 % 98.6 % Weighted-average annual effective yield (b) 13.0 % 12.8 % 13.0 % Average EBITDA (c) $ 9.3 $ 32.3 $ 57.7 ____________________ (a) At June 30, 2024, Main Street had equity ownership in all of its LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was 39%. (b) The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of June 30, 2024, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. The weighted-average annual effective yield on Main Street’s debt portfolio as of June 30, 2024 including debt investments on non-accrual status was 12.5% for its LMM portfolio, 12.4% for its Private Loan portfolio and 11.0% for its Middle Market portfolio. The weighted-average annual effective yield is not reflective of what an investor in shares of Main Street’s common stock will realize on its investment because it does not reflect changes in the market value of Main Street’s stock, Main Street’s utilization of debt capital in its capital structure, Main Street’s expenses or any sales load paid by an investor. (c) The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Private Loan and Middle Market portfolios. These calculations exclude certain portfolio companies, including four LMM portfolio companies, four Private Loan portfolio companies and three Middle Market portfolio companies, as EBITDA is not a meaningful valuation metric for Main Street’s investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate. As of December 31, 2023 LMM (a) Private Loan Middle Market (dollars in millions) Number of portfolio companies 80 87 23 Fair value $ 2,273.0 $ 1,453.5 $ 243.7 Cost $ 1,782.9 $ 1,470.1 $ 294.4 Debt investments as a % of portfolio (at cost) 72.0 % 94.7 % 91.4 % Equity investments as a % of portfolio (at cost) 28.0 % 5.3 % 8.6 % % of debt investments at cost secured by first priority lien 99.2 % 100.0 % 99.1 % Weighted-average annual effective yield (b) 13.0 % 12.9 % 12.5 % Average EBITDA (c) $ 8.2 $ 27.2 $ 64.2 ____________________ (a) At December 31, 2023, Main Street had equity ownership in all of its LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was 40%. (b) The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2023, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. The weighted-average annual effective yield on Main Street’s debt portfolio as of December 31, 2023 including debt investments on non-accrual status was 12.9% for its LMM portfolio, 12.5% for its Private Loan portfolio and 10.8% for its Middle Market portfolio. The weighted-average annual effective yield is not reflective of what an investor in shares of Main Street’s common stock will realize on its investment because it does not reflect changes in the market value of Main Street’s stock, Main Street’s utilization of debt capital in its capital structure, Main Street’s expenses or any sales load paid by an investor. (c) The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Private Loan and Middle Market portfolios. These calculations exclude certain portfolio companies, including two LMM portfolio companies and two Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for Main Street’s investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate. For the three months ended June 30, 2024 and 2023, Main Street achieved an annualized total return on investments of 15.7% and 16.7%, respectively. For the six months ended June 30, 2024 and 2023, Main Street achieved an annualized total return on investments of 16.2% and 15.1%, respectively. For the year ended December 31, 2023, Main Street achieved a total return on investments of 16.3%. Total return on investments is calculated using the interest, dividend and fee income, as well as the realized and unrealized change in fair value of the Investment Portfolio for the specified period. Main Street’s total return on investments is not reflective of what an investor in shares of Main Street’s common stock will realize on its investment because it does not reflect changes in the market value of Main Street’s stock, Main Street’s utilization of debt capital in its capital structure, Main Street’s expenses or any sales load paid by an investor. As of June 30, 2024, Main Street had Other Portfolio investments in 14 entities, collectively totaling $179.5 million in fair value and $175.0 million in cost basis and which comprised 3.8% and 4.3% of Main Street’s Investment Portfolio at fair value and cost, respectively. As of December 31, 2023, Main Street had Other Portfolio investments in 15 entities, collectively totaling $142.0 million in fair value and $149.1 million in cost basis and which comprised 3.3% and 4.0% of Main Street’s Investment Portfolio at fair value and cost, respectively As discussed further in Note A.1. — Organization and Basis of Presentation — Organization, Main Street holds an investment in the External Investment Manager, a wholly-owned subsidiary that is treated as a portfolio investment. As of June 30, 2024, this investment had a fair value of $186.6 million and a cost basis of $29.5 million, which comprised 3.9% and 0.7% of Main Street’s Investment Portfolio at fair value and cost, respectively. As of December 31, 2023, this investment had a fair value of $174.1 million and a cost basis of $29.5 million, which comprised 4.1% and 0.8% of Main Street’s Investment Portfolio at fair value and cost, respectively. The following tables summarize the composition of Main Street’s total combined LMM, Private Loan and Middle Market portfolio investments at cost and fair value by type of investment as a percentage of the total combined LMM, Private Loan and Middle Market portfolio investments, as of June 30, 2024 and December 31, 2023 (this information excludes Other Portfolio investments and the External Investment Manager, which are discussed above). Cost: June 30, 2024 December 31, 2023 First lien debt 83.5 % 82.7 % Equity 15.9 16.8 Second lien debt 0.1 0.1 Equity warrants 0.3 0.2 Other 0.2 0.2 100.0 % 100.0 % Fair Value: June 30, 2024 December 31, 2023 First lien debt 72.4 % 71.6 % Equity 27.0 27.8 Second lien debt 0.2 0.2 Equity warrants 0.2 0.2 Other 0.2 0.2 100.0 % 100.0 % The following tables summarize the composition of Main Street’s total combined LMM, Private Loan and Middle Market portfolio investments by geographic region of the United States and other countries at cost and fair value as a percentage of the total combined LMM, Private Loan and Middle Market portfolio investments, as of June 30, 2024 and December 31, 2023 (this information excludes Other Portfolio investments and the External Investment Manager). The geographic composition is determined by the location of the corporate headquarters of the portfolio company. Cost: June 30, 2024 December 31, 2023 West 24.4 % 25.8 % Northeast 22.6 22.3 Midwest 21.0 17.0 Southwest 16.3 19.7 Southeast 13.9 13.1 Canada 0.3 0.4 Other Non-United States 1.5 1.7 100.0 % 100.0 % Fair Value: June 30, 2024 December 31, 2023 West 23.7 % 25.4 % Midwest 21.7 18.1 Northeast 21.7 21.3 Southwest 19.3 22.0 Southeast 11.9 11.3 Canada 0.3 0.3 Other Non-United States 1.4 1.6 100.0 % 100.0 % Main Street’s LMM, Private Loan and Middle Market portfolio investments are in companies conducting business in a variety of industries. The following tables summarize the composition of Main Street’s total combined LMM, Private Loan and Middle Market portfolio investments by industry at cost and fair value as of June 30, 2024 and December 31, 2023 (this information excludes Other Portfolio investments and the External Investment Manager). Cost: June 30, 2024 December 31, 2023 Professional Services 7.3 % 6.0 % Machinery 6.9 7.7 Internet Software & Services 6.1 7.6 Electrical Equipment 5.2 1.6 Health Care Providers & Services 5.0 5.4 Commercial Services & Supplies 4.6 4.5 Diversified Consumer Services 4.6 4.9 Auto Components 4.2 1.6 Distributors 4.2 4.3 Construction & Engineering 4.1 4.9 IT Services 4.0 5.0 Containers & Packaging 3.9 3.8 Energy Equipment & Services 3.2 2.7 Tobacco 3.0 3.1 Textiles, Apparel & Luxury Goods 2.9 3.2 Aerospace & Defense 2.7 2.9 Leisure Equipment & Products 2.5 3.1 Specialty Retail 2.4 2.1 Computers & Peripherals 2.3 2.7 Software 2.0 2.0 Diversified Financial Services 1.8 1.7 Media 1.8 2.4 Building Products 1.6 1.7 Food Products 1.6 1.6 Food & Staples Retailing 1.5 1.6 Electronic Equipment, Instruments & Components 1.4 1.5 Health Care Equipment & Supplies 1.2 1.3 Internet & Catalog Retail 1.2 1.3 Communications Equipment 1.1 1.2 Hotels, Restaurants & Leisure 1.0 1.1 Chemicals 0.9 1.0 Household Products 0.9 1.0 Other (1) 2.9 3.5 100.0 % 100.0 % ____________________ (1) Includes various industries with each industry individually less than 1.0% of the total combined LMM, Private Loan and Middle Market portfolio investments at each date. Fair Value: June 30, 2024 December 31, 2023 Machinery 8.4 % 8.8 % Professional Services 7.7 6.5 Diversified Consumer Services 6.6 7.1 Internet Software & Services 5.1 6.2 Electrical Equipment 4.8 1.7 Health Care Providers & Services 4.7 5.0 Construction & Engineering 4.4 5.1 Distributors 4.4 4.5 Computers & Peripherals 4.1 4.4 Commercial Services & Supplies 4.0 3.9 Containers & Packaging 4.0 3.9 IT Services 3.8 4.6 Auto Components 3.7 1.5 Energy Equipment & Services 3.1 2.5 Tobacco 3.1 3.2 Specialty Retail 2.8 2.7 Aerospace & Defense 2.5 2.7 Media 2.1 2.7 Software 2.1 2.1 Textiles, Apparel & Luxury Goods 2.0 2.6 Leisure Equipment & Products 1.8 2.5 Diversified Financial Services 1.7 1.6 Food Products 1.5 1.5 Building Products 1.4 1.5 Food & Staples Retailing 1.1 1.2 Air Freight & Logistics 1.0 1.1 Internet & Catalog Retail 1.0 1.2 Construction Materials 0.9 1.0 Health Care Equipment & Supplies 0.9 1.0 Other (1) 5.3 5.7 100.0 % 100.0 % ____________________ (1) Includes various industries with each industry individually less than 1.0% of the total combined LMM, Private Loan and Middle Market portfolio investments at each date. At June 30, 2024 and December 31, 2023, Main Street had no portfolio investment that was greater than 10% of the Investment Portfolio at fair value. Unconsolidated Significant Subsidiaries In accordance with Rules 3-09 and 4-08(g) of Regulation S-X, Main Street must determine which of its unconsolidated controlled portfolio companies, if any, are considered “significant subsidiaries.” In evaluating its unconsolidated controlled portfolio companies in accordance with Regulation S-X, there are two tests that Main Street must utilize to determine if any of Main Street’s Control Investments (as defined in Note A — Organization and Basis of Presentation , including those unconsolidated portfolio companies defined as Control Investments in which Main Street does not own greater than 50% of the voting securities nor have rights to maintain greater than 50% of the board representation) are considered significant subsidiaries: the investment test and the income test. The investment test is generally measured by dividing Main Street’s investment in the Control Investment by the value of Main Street’s total investments. The income test is generally measured by dividing the absolute value of the combined sum of total investment income, net realized gain (loss) and net unrealized appreciation (depreciation) from the relevant Control Investment for the period being tested by the absolute valu

EXTERNAL INVESTMENT MANAGER

EXTERNAL INVESTMENT MANAGER	6 Months Ended
	Jun. 30, 2024
Investment Company [Abstract]
EXTERNAL INVESTMENT MANAGER	EXTERNAL INVESTMENT MANAGER As discussed further in Note A.1. — Organization and Basis of Presentation — Organization and Note C — Fair Value Hierarchy for Investments — Portfolio Composition — Investment Portfolio Composition , the External Investment Manager provides investment management and other services to External Parties. The External Investment Manager is accounted for as a portfolio investment of MSCC since the External Investment Manager conducts all of its investment management activities for External Parties. The External Investment Manager serves as the investment adviser and administrator to MSC Income pursuant to an Investment Advisory and Administrative Services Agreement entered into in October 2020 between the External Investment Manager and MSC Income (the “Advisory Agreement”). Under the Advisory Agreement, the External Investment Manager earns a 1.75% annual base management fee on MSC Income’s average total assets, an incentive fee equal to 20% of pre-investment fee net investment income above a specified investment return hurdle rate and a 20% incentive fee on cumulative net realized capital gains in exchange for providing advisory services to MSC Income. As described more fully in Note L — Related Party Transactions , the External Investment Manager also serves as the investment adviser and administrator to MS Private Loan Fund I, LP (the “Private Loan Fund”) and MS Private Loan Fund II, LP (the “Private Loan Fund II”), each a private investment fund with a strategy to co-invest with Main Street in Private Loan portfolio investments. The External Investment Manager entered into investment management agreements in December 2020 with the Private Loan Fund and in September 2023 with the Private Loan Fund II, pursuant to which the External Investment Manager provides investment advisory and management services to each fund in exchange for an asset-based fee and certain incentive fees. The External Investment Manager may also advise other clients, including funds and separately managed accounts, pursuant to advisory and services agreements with such clients in exchange for asset-based and incentive fees. The External Investment Manager provides administrative services for certain External Party clients that, to the extent not waived, are reported as administrative services fees. The administrative services fees generally represent expense reimbursements for a portion of the compensation, overhead and related expenses for certain professionals directly attributable to performing administrative services for clients. These fees are recognized as other revenue in the period in which the related services are rendered. Main Street determines the fair value of the External Investment Manager using the Waterfall valuation method under the market approach (see further discussion in Note B.1. — Summary of Significant Accounting Policies — Valuation of the Investment Portfolio ). Any change in fair value of the investment in the External Investment Manager is recognized on Main Street’s Consolidated Statements of Operations in “Net Unrealized Appreciation (Depreciation) — Control investments.” The External Investment Manager is an indirect wholly-owned subsidiary of MSCC owned through a Taxable Subsidiary and is a disregarded entity for tax purposes. The External Investment Manager has entered into a tax sharing agreement with its Taxable Subsidiary owner. Since the External Investment Manager is accounted for as a portfolio investment of Main Street and is not included as a consolidated subsidiary of Main Street in its consolidated financial statements, and as a result of the tax sharing agreement with its Taxable Subsidiary owner, for financial reporting purposes the External Investment Manager is treated as if it is taxed at corporate income tax rates based on its taxable income and, as a result of its activities, may generate income tax expense or benefit. Main Street owns the External Investment Manager through the Taxable Subsidiary to allow MSCC to continue to comply with the “source-of-income” requirements contained in the RIC tax provisions of the Code. The taxable income, or loss, of the External Investment Manager may differ from its book income, or loss, due to temporary book and tax timing differences and permanent differences. As a result of the above described financial reporting and tax treatment, the External Investment Manager provides for any income tax expense, or benefit, and any tax assets or liabilities in its separate financial statements. Main Street shares employees with the External Investment Manager and allocates costs related to such shared employees to the External Investment Manager generally based on a combination of the direct time spent, new investment activities and assets under management, depending on the nature of the expense. The total contribution of the External Investment Manager to Main Street’s net investment income consists of the combination of the expenses allocated to the External Investment Manager and the dividend income earned from the External Investment Manager. For the three months ended June 30, 2024 and 2023, the total contribution to Main Street’s net investment income was $9.2 million and $8.5 million, respectively. For the six months ended June 30, 2024 and 2023, the total contribution to Main Street’s net investment income was $17.8 million and $16.6 million, respectively. Summarized financial information from the separate financial statements of the External Investment Manager as of June 30, 2024 and December 31, 2023 and for the three and six months ended June 30, 2024 and 2023 is as follows: As of June 30, As of December 31, 2023 (dollars in thousands) Accounts receivable - advisory clients $ 9,831 $ 10,777 Intangible Asset 29,500 29,500 Total assets $ 39,331 $ 40,277 Accounts payable to MSCC and its subsidiaries $ 6,519 $ 7,551 Dividend payable to MSCC and its subsidiaries 3,312 3,226 Equity 29,500 29,500 Total liabilities and equity $ 39,331 $ 40,277 Three Months Ended June 30, Six Months Ended June 30, 2024 2023 2024 2023 (dollars in thousands) Management fee income $ 5,886 $ 5,544 $ 11,603 $ 11,014 Incentive fees 4,117 3,663 7,983 6,967 Administrative services fees 159 151 315 302 Total revenues 10,162 9,358 19,901 18,283 Expenses allocated from MSCC or its subsidiaries: Salaries, share-based compensation and other personnel costs (5,021) (4,897) (9,855) (9,165) Other G&A expenses (866) (791) (1,591) (1,521) Total allocated expenses (5,887) (5,688) (11,446) (10,686) Other direct G&A expenses (15) — (24) — Total expenses (5,902) (5,688) (11,470) (10,686) Pre-tax income 4,260 3,670 8,431 7,597 Tax expense (948) (811) (2,118) (1,683) Net income $ 3,312 $ 2,859 $ 6,313 $ 5,914

DEBT

DEBT	6 Months Ended
	Jun. 30, 2024
Debt Disclosure [Abstract]
DEBT	DEBT Summary of Main Street’s debt as of June 30, 2024 is as follows: Outstanding Unamortized Debt Issuance (Costs)/Premiums (1) Recorded Value Estimated Fair Value (2) (dollars in thousands) Corporate Facility $ 465,000 $ — $ 465,000 $ 465,000 SPV Facility 160,000 — 160,000 160,000 July 2026 Notes 500,000 (1,075) 498,925 467,950 March 2029 Notes 350,000 (3,358) 346,642 353,654 June 2027 Notes 300,000 (2,340) 297,660 300,081 SBIC Debentures 286,200 (5,583) 280,617 229,680 December 2025 Notes 150,000 (776) 149,224 149,257 Total Debt $ 2,211,200 $ (13,132) $ 2,198,068 $ 2,125,622 ____________________ (1) The unamortized debt issuance costs for the Credit Facilities are reflected as Deferred financing costs on the Consolidated Balance Sheets, while the deferred debt issuance costs related to the July 2026 Notes, March 2029 Notes, June 2027 Notes, SBIC Debentures and December 2025 Notes are reflected as contra-liabilities on the Consolidated Balance Sheets. (2) Estimated fair value for outstanding debt is shown as if Main Street had adopted the fair value option under ASC 825. See discussion of the methods used to estimate the fair value of Main Street’s debt in Note B.12. — Summary of Significant Accounting Policies — Fair Value of Financial Instruments. Summary of Main Street’s debt as of December 31, 2023 is as follows: Outstanding Unamortized Debt Issuance (Costs)/Premiums (1) Recorded Value Estimated Fair Value (2) (dollars in thousands) Corporate Facility $ 200,000 $ — $ 200,000 $ 200,000 SPV Facility 160,000 — 160,000 160,000 July 2026 Notes 500,000 (1,338) 498,662 458,105 May 2024 Notes 450,000 182 450,182 447,246 SBIC Debentures 350,000 (5,465) 344,535 288,468 December 2025 Notes 150,000 (1,035) 148,965 151,155 Total Debt $ 1,810,000 $ (7,656) $ 1,802,344 $ 1,704,974 ____________________ (1) The unamortized debt issuance costs for the Credit Facilities are reflected as Deferred financing costs on the Consolidated Balance Sheets, while the deferred debt issuance costs related to the July 2026 Notes, May 2024 Notes, SBIC Debentures and December 2025 Notes are reflected as contra-liabilities on the Consolidated Balance Sheets. (2) Estimated fair value for outstanding debt is shown as if Main Street had adopted the fair value option under ASC 825. See discussion of the methods used to estimate the fair value of Main Street’s debt in Note B.12. — Summary of Significant Accounting Policies — Fair Value of Financial Instruments. Summarized interest expense for the three and six months ended June 30, 2024 and 2023 is as follows: Three Months Ended June 30, Six Months Ended June 30, 2024 2023 2024 2023 (dollars in thousands) Corporate Facility $ 7,240 $ 7,898 $ 11,522 $ 14,508 SPV Facility 3,096 3,511 4,774 6,941 July 2026 Notes 3,882 3,882 7,763 7,763 May 2024 Notes 1,905 5,714 7,618 11,427 March 2029 Notes 6,261 — 11,747 — June 2027 Notes 1,473 — 1,473 — SBIC Debentures 2,273 2,718 4,979 5,470 December 2025 Notes 3,031 3,031 6,061 5,643 Total Interest Expense $ 29,161 $ 26,754 $ 55,937 $ 51,752 Corporate Facility Main Street maintains the Corporate Facility to provide additional liquidity to support its investment and operational activities. In June 2024, Main Street entered into an amendment to the Corporate Facility to, among other things: (i) increase the revolving commitments from $995.0 million to $1.11 billion, (ii) increase the accordion feature providing Main Street with the right to request increases in commitments under the facility from new and existing lenders on the same terms and conditions as the existing commitments from up to a total of $1.4 billion to up to a total of $1.665 billion, and (iii) extend the revolving period and the final maturity date through June 2028 and June 2029, respectively, on $1.035 billion of revolving commitments, and August 2026 and August 2027, respectively, on $0.075 billion of revolving commitments. As of June 30, 2024, borrowings under the Corporate Facility bore interest, subject to Main Street’s election and resetting on a monthly basis on the first of each month, on a per annum basis at a rate equal to the applicable SOFR rate plus an applicable credit spread adjustment of 0.10% plus (i) 1.875% (or the applicable Prime rate plus 0.875%) as long as Main Street meets certain agreed upon excess collateral and maximum leverage requirements or (ii) 2.0% (or the applicable Prime Rate plus 1.0%) otherwise. Main Street pays unused commitment fees of 0.25% per annum on the unused lender commitments under the Corporate Facility. The Corporate Facility is secured by a first lien on the assets of MSCC and its subsidiaries, excluding the equity ownership or assets of the Funds and the External Investment Manager. In connection with the Corporate Facility, MSCC has made customary representations and warranties and is required to comply with various covenants, reporting requirements and other customary requirements for similar credit facilities. As of June 30, 2024, the interest rate on the Corporate Facility was 7.3%. The average interest rate for borrowings under the Corporate Facility was 7.3% and 7.0% for the three months ended June 30, 2024 and 2023, respectively, and 7.3% and 6.7% for the six months ended June 30, 2024 and 2023, respectively. As of June 30, 2024, Main Street was in compliance with all financial covenants of the Corporate Facility. SPV Facility Main Street, through MSCC Funding I, LLC (“MSCC Funding”), a wholly-owned Structured Subsidiary that primarily holds debt investments, maintains the SPV Facility to finance its investment and operational activities. As of June 30, 2024, the SPV Facility included total commitments of $430.0 million from a diversified group of six lenders and contained an accordion feature, subject to the satisfaction of various conditions, that could bring total commitments and borrowing availability to up to $450.0 million. The revolving period under the SPV Facility expires in November 2025 and the SPV Facility is scheduled to mature in November 2027. Advances under the SPV Facility bear interest at a per annum rate equal to the one-month SOFR in effect, plus a 0.10% credit spread adjustment plus an applicable margin of 2.50% during the revolving period and 2.625% and 2.75% during the first and second years thereafter, respectively. MSCC Funding pays a commitment fee of 0.50% per annum on the unused lender commitments up to 35% of the total lender commitments and 0.75% per annum on the unused lender commitments greater than 35% of the total lender commitments. The SPV Facility is secured by a collateral loan on the assets of MSCC Funding and its subsidiaries. In connection with the SPV Facility, MSCC Funding has made customary representations and warranties and is required to comply with various covenants, reporting requirements and other customary requirements for similar credit facilities. As of June 30, 2024, the interest rate on the SPV Facility was 7.9%. The average interest rate for borrowings under the SPV Facility was 7.9% and 7.6% for the three months ended June 30, 2024 and 2023, respectively, and 7.9% and 7.4% for the six months ended June 30, 2024 and 2023, respectively. As of June 30, 2024, MSCC Funding was in compliance with all financial covenants of the SPV Facility. MSCC Funding’s balance sheets as of June 30, 2024 and December 31, 2023 are as follows: Balance Sheets (dollars in thousands) June 30, 2024 December 31, 2023 (Unaudited) ASSETS Investments at fair value: Non-Control Investments (cost: $335,118 and $315,373 as of June 30, 2024 and December 31, 2023, respectively) $ 335,892 $ 317,392 Cash and cash equivalents 6,618 12,817 Interest and dividend receivable and other assets 2,734 2,956 Receivable for securities sold 124 — Deferred financing costs (net of accumulated amortization of $1,272 and $783 as of June 30, 2024 and December 31, 2023, respectively) 3,340 3,829 Total assets 348,708 336,994 LIABILITIES SPV Facility $ 160,000 $ 160,000 Accounts payable and other liabilities to affiliates — 7,170 Interest payable 1,195 1,135 Total liabilities 161,195 168,305 NET ASSETS Contributed capital 142,619 138,163 Total undistributed earnings 44,894 30,526 Total net assets 187,513 168,689 Total liabilities and net assets $ 348,708 $ 336,994 MSCC Funding’s statements of operations for the three and six months ended June 30, 2024 and 2023 are as follows: Statements of Operations (dollars in thousands) (Unaudited) Three Months Ended June 30, Six Months Ended 2024 2023 2024 2023 INVESTMENT INCOME: Interest, fee and dividend income: Non‑Control/Non‑Affiliate investments $ 10,118 $ 9,873 $ 21,185 $ 18,590 Total investment income 10,118 9,873 21,185 18,590 EXPENSES: Interest (3,096) (3,512) (4,774) (6,940) Management Fee to MSCC (395) (410) (800) (686) General and administrative (18) (19) (36) (51) Total expenses (3,509) (3,941) (5,610) (7,677) NET INVESTMENT INCOME 6,609 5,932 15,575 10,913 NET UNREALIZED APPRECIATION (DEPRECIATION): Non‑Control/Non‑Affiliate investments (769) 1,956 (1,246) 565 Total net unrealized appreciation (depreciation) (769) 1,956 (1,246) 565 NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS $ 5,840 $ 7,888 $ 14,329 $ 11,478 July 2026 Notes In January 2021, Main Street issued $300.0 million in aggregate principal amount of 3.00% unsecured notes due July 14, 2026 (the “July 2026 Notes”) at an issue price of 99.004%. Subsequently, in October 2021, Main Street issued an additional $200.0 million aggregate principal amount of the July 2026 Notes at an issue price of 101.741%. The July 2026 Notes issued in October 2021 have identical terms as, and are a part of a single series with, the July 2026 Notes issued in January 2021. The July 2026 Notes are unsecured obligations and rank pari passu with Main Street’s current and future unsecured indebtedness. The July 2026 Notes may be redeemed in whole or in part at any time at Main Street’s option subject to certain make-whole provisions. The July 2026 Notes bear interest at a rate of 3.00% per year payable semiannually on January 14 and July 14 of each year. As of June 30, 2024, Main Street was in compliance with all covenants and other requirements of the July 2026 Notes. March 2029 Notes In January 2024, Main Street issued $350.0 million in aggregate principal amount of 6.95% unsecured notes due March 1, 2029 (the “March 2029 Notes”) at an issue price of 99.865%. The March 2029 Notes are unsecured obligations and rank pari passu with Main Street’s current and future unsecured indebtedness. The March 2029 Notes may be redeemed in whole or in part at any time at Main Street’s option subject to certain make-whole provisions. The March 2029 Notes bear interest at a rate of 6.95% per year payable semiannually on March 1 and September 1 of each year. As of June 30, 2024, Main Street was in compliance with all covenants and other requirements of the March 2029 Notes. June 2027 Notes In June 2024, Main Street issued $300.0 million in aggregate principal amount of 6.50% unsecured notes due June 4, 2027 (the “June 2027 Notes”) at an issue price of 99.793%. The June 2027 Notes are unsecured obligations and rank pari passu with Main Street’s current and future unsecured indebtedness. The June 2027 Notes may be redeemed in whole or in part at any time at Main Street’s option subject to certain make-whole provisions. The June 2027 Notes bear interest at a rate of 6.50% per year payable semiannually on June 4 and December 4 of each year. As of June 30, 2024, Main Street was in compliance with all covenants and other requirements of the June 2027 Notes. SBIC Debentures Under existing SBIC regulations, SBA-approved SBICs under common control have the ability to issue debentures guaranteed by the SBA up to a regulatory maximum amount of $350.0 million. Main Street’s SBIC debentures payable, under existing SBA-approved commitments, were $286.2 million and $350.0 million as of June 30, 2024 and December 31, 2023, respectively. SBIC debentures provide for interest to be paid semiannually, with principal due at the applicable 10-year maturity date of each debenture. Main Street expects to maintain SBIC debentures under the SBIC program in the future, subject to periodic repayments and borrowings, in an amount up to the regulatory maximum amount for affiliated SBIC funds. On March 1, 2024, Main Street repaid $63.8 million of debentures that had reached maturity dates. The weighted-average annual interest rate on the SBIC debentures was 2.8% and 3.0% as of June 30, 2024 and December 31, 2023, respectively. The first principal maturity due under the existing SBIC debentures is in 2027, and the weighted-average remaining duration as of June 30, 2024 was 5.1 years. In accordance with SBIC regulations, the Funds are precluded from incurring additional non-SBIC debt without the prior approval of the SBA. As of June 30, 2024, the SBIC debentures consisted of (i) $111.2 million par value of SBIC debentures outstanding issued by MSMF, with a recorded value of $107.8 million that was net of unamortized debt issuance costs of $3.4 million and (ii) $175.0 million par value of SBIC debentures issued by MSC III with a recorded value of $172.8 million that was net of unamortized debt issuance costs of $2.2 million. December 2025 Notes In December 2022, Main Street issued $100.0 million in aggregate principal amount of 7.84% Series A unsecured notes due December 23, 2025 (the “December 2025 Series A Notes”) at par. In February 2023, Main Street issued an additional $50.0 million in aggregate principal amount of 7.53% Series B unsecured notes due December 23, 2025 (the “December 2025 Series B Notes” and, together with the December 2025 Series A Notes, the “December 2025 Notes”), at par. The December 2025 Notes are unsecured obligations and rank pari passu with Main Street’s current and future unsecured indebtedness. The December 2025 Notes may be redeemed in whole or in part at any time at Main Street’s option at par plus accrued interest to the prepayment date, subject to certain make-whole provisions. The December 2025 Series A Notes and the December 2025 Series B Notes bear interest at a rate of 7.84% and 7.53% per year, respectively, payable semiannually on June 23 and December 23 of each year. In addition, Main Street is obligated to offer to repay the December 2025 Notes at par plus accrued and unpaid interest if certain change in control events occur. The December 2025 Notes will bear interest at an increased rate from the date that (i) the December 2025 Notes receive a below investment grade rating by a rating agency if there is one or two rating agencies providing ratings of the December 2025 Notes, or two-thirds of the rating agencies if there are three rating agencies who are rating the notes (a “Below Investment Grade Event”), or (ii) the ratio of the Company’s consolidated secured indebtedness (other than indebtedness of the Funds or any Structured Subsidiaries) to the value of its consolidated total assets is greater than 0.35 to 1.00 (a “Secured Debt Ratio Event”), to and until the date on which the Below Investment Grade Event and the Secured Debt Ratio Event are no longer continuing. The governing agreement for the December 2025 Notes contains customary terms and conditions for senior unsecured notes issued in a private placement, as well as customary events of default with customary cure and notice periods. As of June 30, 2024, Main Street was in compliance with all covenants and other requirements of the December 2025 Notes. May 2024 Notes In May 2024, Main Street repaid the $450.0 million principal amount of the issued and outstanding 5.20% unsecured notes (the “May 2024 Notes”) at maturity at par value plus the accrued and unpaid interest. The outstanding aggregate principal amount of the May 2024 Notes was $450.0 million as of December 31, 2023.

FINANCIAL HIGHLIGHTS

FINANCIAL HIGHLIGHTS	6 Months Ended
	Jun. 30, 2024
Investment Company [Abstract]
FINANCIAL HIGHLIGHTS	FINANCIAL HIGHLIGHTS The following is a schedule of financial highlights of Main Street for the six months ended June 30, 2024 and 2023: Six Months Ended June 30, Per Share Data: 2024 2023 NAV at the beginning of the period $ 29.20 $ 26.86 Net investment income (1) 2.07 2.08 Net realized loss (1)(2) (0.10) (1.30) Net unrealized appreciation (1)(2) 0.74 1.75 Income tax provision (1)(2) (0.26) (0.21) Net increase in net assets resulting from operations (1) 2.45 2.32 Dividends paid from net investment income (2.04) (1.75) Dividends paid (2.04) (1.75) Impact of the net change in monthly dividends declared prior to the end of the period and paid in the subsequent period (0.01) (0.01) Accretive effect of stock offerings (issuing shares above NAV per share) 0.21 0.31 Accretive effect of DRIP issuance (issuing shares above NAV per share) 0.07 0.05 Other (3) (0.08) (0.09) NAV at the end of the period $ 29.80 $ 27.69 Market value at the end of the period $ 50.49 $ 40.03 Shares outstanding at the end of the period 86,552,506 81,431,006 ____________________ (1) Based on weighted-average number of common shares outstanding for the period. (2) Net realized gains or losses, net unrealized appreciation or depreciation, and income tax provision or benefit can fluctuate significantly from period to period. (3) Includes the impact of the different share amounts as a result of calculating certain per share data based on the weighted-average basic shares outstanding during the period and certain per share data based on the shares outstanding as of a period end or transaction date. Six Months Ended June 30, 2024 2023 (dollars in thousands) NAV at end of period $ 2,578,956 $ 2,254,948 Average NAV $ 2,524,108 $ 2,178,819 Average outstanding debt $ 2,051,543 $ 1,991,714 Ratio of total expenses, including income tax expense, to average NAV (1)(2) 4.31 % 4.49 % Ratio of operating expenses to average NAV (2)(3) 3.43 % 3.72 % Ratio of operating expenses, excluding interest expense, to average NAV (2)(3) 1.22 % 1.35 % Ratio of net investment income to average NAV (2) 7.02 % 7.65 % Portfolio turnover ratio (2) 8.62 % 7.76 % Total investment return (2)(4) 21.97 % 13.26 % Total return based on change in NAV (2)(5) 8.47 % 8.83 % ____________________ (1) Total expenses are the sum of operating expenses and net income tax provision. Net income tax provision includes the accrual of net deferred tax provision relating to the net unrealized appreciation or depreciation on portfolio investments held in Taxable Subsidiaries and due to the change in the loss carryforwards, which are non-cash in nature and may vary significantly from period to period. Main Street is required to include net deferred tax provision in calculating its total expenses even though these net deferred taxes are not currently payable or receivable. (2) Not annualized. (3) Unless otherwise noted, operating expenses include interest, compensation, general and administrative and share-based compensation expenses, net of expenses allocated to the External Investment Manager of $11.4 million and $10.7 million for the six months ended June 30, 2024 and 2023, respectively. (4) Total investment return is based on the purchase of stock at the current market price on the first day and a sale at the current market price on the last day of each period reported on the table and assumes reinvestment of dividends at prices obtained by Main Street’s dividend reinvestment plan during the period. The return does not reflect any sales load that may be paid by an investor. (5) Total return based on change in NAV was calculated using the sum of ending NAV plus dividends to stockholders and other non-operating changes during the period, divided by the beginning NAV. Non-operating changes include any items that affect NAV other than the net increase in net assets resulting from operations, such as the effects of stock offerings, shares issued under the DRIP and equity incentive plans and other miscellaneous items.

DIVIDENDS, DISTRIBUTIONS AND TA

DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME	6 Months Ended
	Jun. 30, 2024
Income Tax Disclosure [Abstract]
DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME	DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME Main Street currently pays regular monthly dividends to its stockholders and periodically pays supplemental dividends to its stockholders. Future dividends, if any, will be determined by its Board of Directors on a quarterly basis. Main Street paid regular monthly dividends of $0.24 per share, totaling $62.0 million, or $0.72 per share, for the three months ended June 30, 2024, and $123.2 million, or $1.44 per share, for the six months ended June 30, 2024, compared to total regular monthly dividends of $54.3 million, or $0.675 per share, for the three months ended June 30, 2023, and $107.9 million, or $1.35 per share, for the six months ended June 30, 2023. Main Street also paid a supplemental dividend of $26.0 million, or $0.30 per share, during the three months ended June 30, 2024, and $51.6 million, or $0.60 per share during the six months ended June 30, 2024, compared to supplemental dividends paid of $18.2 million, or $0.225 per share, during the three months ended June 30, 2023, and $32.2 million, or $0.40 per share, during the six months ended June 30, 2023. MSCC has elected to be treated for U.S. federal income tax purposes as a RIC. MSCC’s taxable income includes the taxable income generated by MSCC and certain of its subsidiaries, including the Funds and Structured Subsidiaries, which are treated as disregarded entities for tax purposes. As a RIC, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that MSCC distributes to its stockholders. MSCC must generally distribute at least 90% of its “investment company taxable income” (which is generally its net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses) and 90% of its tax-exempt income to maintain its RIC status (pass-through tax treatment for amounts distributed). As part of maintaining RIC status, undistributed taxable income (subject to a 4% non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to twelve months subsequent to the end of that fiscal year, provided such dividends are declared on or prior to the later of (i) filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close of the year in which such taxable income was generated. The determination of the tax attributes for Main Street’s distributions is made annually, based upon its taxable income for the full year and distributions paid for the full year. Therefore, a determination made on an interim basis may not be representative of the actual tax attributes of distributions for a full year. Ordinary dividend distributions from a RIC do not qualify for the 20% maximum tax rate (plus a 3.8% Medicare surtax, if applicable) on dividend income from domestic corporations and qualified foreign corporations, except to the extent that the RIC received the income in the form of qualifying dividends from domestic corporations and qualified foreign corporations. The tax attributes for distributions will generally include both ordinary income and qualified dividends, but may also include either one or both of capital gains and return of capital. Listed below is a reconciliation of “Net increase in net assets resulting from operations” to taxable income and to total distributions declared to common stockholders for the six months ended June 30, 2024 and 2023. Six Months Ended June 30, 2024 2023 (estimated, dollars in thousands) Net increase in net assets resulting from operations $ 209,835 $ 186,107 Book-tax difference from share-based compensation expense (10,123) (7,646) Net unrealized appreciation (63,693) (140,059) Income tax provision 22,010 16,760 Pre-tax book (income) loss not consolidated for tax purposes (33,694) 44,328 Book income and tax income differences, including debt origination, structuring fees, dividends, realized gains and changes in estimates 29,576 45,352 Estimated taxable income (1) 153,911 144,842 Taxable income earned in prior year and carried forward for distribution in current year 56,142 49,216 Taxable income earned prior to period end and carried forward for distribution next period (55,633) (71,501) Dividend payable as of period end and paid in the following period 21,205 18,729 Total distributions accrued or paid to common stockholders $ 175,625 $ 141,286 ____________________ (1) MSCC’s taxable income for each period is an estimate and will not be finally determined until MSCC files its tax return for each year. Therefore, the final taxable income, and the taxable income earned in each period and carried forward for distribution in the following period, may be different than this estimate. The Taxable Subsidiaries primarily hold certain equity investments for Main Street. The Taxable Subsidiaries permit Main Street to hold equity investments in portfolio companies which are “pass-through” entities for tax purposes and to continue to comply with the “source-of-income” requirements contained in the RIC tax provisions of the Code. The Taxable Subsidiaries are consolidated with MSCC for U.S. GAAP financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries are included in Main Street’s consolidated financial statements as portfolio investments and recorded at fair value. The Taxable Subsidiaries are not consolidated with MSCC for income tax purposes and may generate income tax expense, or benefit, and tax assets and liabilities, as a result of their ownership of certain portfolio investments. The taxable income, or loss, of the Taxable Subsidiaries may differ from their book income, or loss, due to temporary book and tax timing differences and permanent differences. The Taxable Subsidiaries are each taxed at corporate income tax rates based on their taxable income. The income tax expense, or benefit, if any, and the related tax assets and liabilities, of the Taxable Subsidiaries are reflected in Main Street’s consolidated financial statements. The income tax provision for Main Street is generally composed of (i) deferred tax expense, which is primarily the result of the net activity relating to the portfolio investments held in the Taxable Subsidiaries, including changes in loss carryforwards, changes in net unrealized appreciation or depreciation and other temporary book tax differences, and (ii) current tax expense, which is primarily the result of current U.S. federal income and state taxes and excise taxes on Main Street’s estimated undistributed taxable income. The income tax expense, or benefit, and the related tax assets and liabilities generated by the Taxable Subsidiaries, if any, are reflected in Main Street’s Consolidated Statements of Operations. Main Street’s provision for income taxes was comprised of the following for the three and six months ended June 30, 2024 and 2023: Three Months Ended June 30, Six Months Ended June 30, 2024 2023 2024 2023 (dollars in thousands) Current tax expense: Federal $ 328 $ 158 $ 657 $ 298 State 997 433 1,878 1,289 Excise 272 1,080 1,193 1,820 Total current tax expense 1,597 1,671 3,728 3,407 Deferred tax expense: Federal 8,867 6,444 16,518 12,250 State 606 532 1,764 1,103 Total deferred tax expense 9,473 6,976 18,282 13,353 Total income tax provision $ 11,070 $ 8,647 $ 22,010 $ 16,760 The net deferred tax liability at June 30, 2024 and December 31, 2023 was $82.1 million and $63.9 million, respectively, with the change primarily related to changes in net unrealized appreciation or depreciation, changes in loss carryforwards, and other temporary book-tax differences relating to portfolio investments held by the Taxable Subsidiaries. At June 30, 2024, for U.S. federal income tax purposes, the Taxable Subsidiaries had a net operating loss carryforward from prior years which, if unused, will expire in various taxable years from 2036 through 2037. Any net operating losses generated in 2018 and future periods are not subject to expiration and will carryforward indefinitely until utilized. Additionally, the Taxable Subsidiaries have interest expense limitation carryforwards which have an indefinite carryforward period.

COMMON STOCK

COMMON STOCK	6 Months Ended
	Jun. 30, 2024
Equity [Abstract]
COMMON STOCK	COMMON STOCK Main Street maintains a program with certain selling agents through which it can sell up to 15,000,000 shares of its common stock by means of at-the-market offerings from time to time (the “ATM Program”). During the six months ended June 30, 2024, Main Street sold 998,349 shares of its common stock at a weighted-average price of $48.46 per share and raised $48.4 million of gross proceeds under the ATM Program. Net proceeds were $47.7 million after commissions to the selling agents on shares sold and offering costs. As of June 30, 2024, there were no share sales transactions that had not settled. As of June 30, 2024, 4,314,875 shares remained available for sale under the ATM Program. During the year ended December 31, 2023, Main Street sold 5,149,460 shares of its common stock at a weighted-average price of $39.94 per share and raised $205.7 million of gross proceeds under the ATM Program. Net proceeds were $203.3 million after commissions to the selling agents on shares sold and offering costs.

DIVIDEND REINVESTMENT PLAN

DIVIDEND REINVESTMENT PLAN	6 Months Ended
	Jun. 30, 2024
Equity [Abstract]
DIVIDEND REINVESTMENT PLAN	DIVIDEND REINVESTMENT PLAN The dividend reinvestment feature of Main Street’s dividend reinvestment and direct stock purchase plan (the “DRIP”) provides for the reinvestment of dividends on behalf of its stockholders, unless a stockholder has elected to receive dividends in cash. As a result, if Main Street declares a cash dividend, its stockholders who have not “opted out” of the DRIP by the dividend record date will have their cash dividend automatically reinvested into additional shares of MSCC common stock. The share requirements of the DRIP may be satisfied through the issuance of shares of common stock or through open market purchases of common stock by the DRIP plan administrator. Newly issued shares will be valued based upon the final closing price of MSCC’s common stock on the valuation date determined for each dividend by Main Street’s Board of Directors. Shares purchased in the open market to satisfy the DRIP requirements will be valued based upon the average price of the applicable shares purchased, before any associated brokerage or other costs. Main Street’s DRIP is administered by its transfer agent on behalf of Main Street’s record holders and participating brokerage firms. Brokerage firms and other financial intermediaries may decide not to participate in Main Street’s DRIP but may provide a similar dividend reinvestment plan for their clients. Summarized DRIP information for the six months ended June 30, 2024 and 2023 is as follows: Six Months Ended June 30, 2024 2023 (dollars in thousands) DRIP participation $ 17,229 $ 14,688 Shares issued for DRIP 366,496 374,173

SHARE-BASED COMPENSATION

SHARE-BASED COMPENSATION	6 Months Ended
	Jun. 30, 2024
Share-Based Payment Arrangement [Abstract]
SHARE-BASED COMPENSATION	SHARE-BASED COMPENSATION Main Street accounts for its share-based compensation plans using the fair value method, as prescribed by ASC 718, Compensation—Stock Compensation . Accordingly, for restricted stock awards (“RSAs”), Main Street measured the grant date fair value based upon the market price of its common stock on the date of the grant and amortizes the fair value of the awards as share-based compensation expense over the requisite service period, which is generally the vesting term. Main Street’s Board of Directors approves the issuance of shares of restricted stock to Main Street employees pursuant to the Main Street Capital Corporation 2022 Equity and Incentive Plan (the “Equity and Incentive Plan”). These shares generally vest over a three-year or five-year period from the grant date. The fair value is expensed over the service period, starting on the grant date. The following table summarizes the restricted stock issuances approved by Main Street’s Board of Directors under the Equity and Incentive Plan, net of shares forfeited, if any, and the remaining shares of restricted stock available for issuance as of June 30, 2024. Restricted stock authorized under the plan 5,000,000 Less net restricted stock granted (1,049,573) Restricted stock available for issuance as of June 30, 2024 3,950,427 As of June 30, 2024, the following table summarizes the restricted stock issued to Main Street’s non-employee directors and the remaining shares of restricted stock available for issuance pursuant to the Main Street Capital Corporation 2022 Non-Employee Director Restricted Stock Plan. These shares are granted upon appointment or election to the board and vest on the day immediately preceding the annual meeting of stockholders following the respective grant date and are expensed over such service period. Restricted stock authorized under the plan 300,000 Less net restricted stock granted (11,065) Restricted stock available for issuance as of June 30, 2024 288,935 For the three months ended June 30, 2024 and 2023, Main Street recognized total share-based compensation expense of $4.9 million and $4.1 million, respectively, related to the restricted stock issued to Main Street employees and non-employee directors. For the six months ended June 30, 2024 and 2023, Main Street recognized total share-based compensation expense of $9.0 million and $8.2 million, respectively, related to the restricted stock issued to Main Street employees and non-employee directors. Summarized RSA activity for the six months ended June 30, 2024 is as follows: Six Months Ended June 30, 2024 Number Weighted-Average Grant-Date Fair Value Restricted Stock Awards (RSAs): of Shares ($ per share) Non-vested, December 31, 2023 958,225 $ 40.48 Granted (1) 512,134 46.94 Vested (1)(2) (407,631) 40.62 Forfeited (21,139) 42.78 Non-vested, June 30, 2024 1,041,589 $ 43.56 Aggregate intrinsic value as of June 30, 2024 (in thousands) $ 52,590 (3) ___________________________ (1) Restricted units generally vest over a three-year or five-year period from the grant date (as noted above). (2) Vested shares included 155,046 shares withheld for payroll taxes paid on behalf of employees. (3) Aggregate intrinsic value is the product of total non-vested restricted shares as of June 30, 2024 and $50.49 per share, the closing price of our common stock on June 30, 2024. The total fair value of RSAs that vested during the six months ended June 30, 2024 and 2023, was $16.6 million and $15.6 million, respectively. As of June 30, 2024, there was $40.5 million of total unrecognized compensation expense related to Main Street’s non-vested restricted shares. This compensation expense is expected to be recognized over a remaining weighted-average period of 2.7 years as of June 30, 2024.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	6 Months Ended
	Jun. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES At June 30, 2024, Main Street had the following outstanding commitments (in thousands): Investments with equity capital commitments that have not yet funded: Amount Brightwood Capital Fund Investments Brightwood Capital Fund V, LP $ 2,500 Brightwood Capital Fund III, LP 65 2,565 EnCap Equity - Fund XII, LP 5,609 Harris Preston Fund Investments HPEP 4, L.P. 7,495 HPEP 3, L.P. 1,308 8,803 MS Private Loan Fund I, LP 750 MS Private Loan Fund II, LP 8,691 UnionRock Energy Fund Investments UnionRock Energy Fund III, LP 5,000 UnionRock Energy Fund II, LP 527 5,527 Total Equity Commitments (1)(2) $ 31,945 Investments with commitments to fund revolving loans that have not been fully drawn or term loans with additional commitments not yet funded: ZRG Partners, LLC $ 28,876 HEADLANDS OP-CO LLC 16,875 Creative Foam Corporation 15,375 Computer Data Source, LLC 9,000 CQ Fluency, LLC 6,750 Insight Borrower Corporation 6,688 JDC Power Services, LLC 6,211 Garyline, LLC 6,000 California Splendor Holdings LLC 6,000 Veregy Consolidated, Inc. 5,875 SI East, LLC 5,250 Gulf Manufacturing, LLC 5,000 PTL US Bidco, Inc 4,612 South Coast Terminals Holdings, LLC 4,465 BP Loenbro Holdings Inc. 4,346 Cody Pools, Inc. 4,214 Bettercloud, Inc. 4,189 IG Investor, LLC 4,000 AB Centers Acquisition Corporation 3,910 AVEX Aviation Holdings, LLC 3,684 Mako Steel, LP 3,651 Microbe Formulas, LLC 3,601 Johnson Downie Opco, LLC 3,600 Titan Meter Midco Corp. 3,598 Nello Industries Investco, LLC 3,426 VVS Holdco LLC 3,200 Watterson Brands, LLC 3,176 Coregistics Buyer LLC 3,100 Power System Solutions 3,085 MS Private Loan Fund 3,000 MetalForming AcquireCo, LLC 2,795 Winter Services LLC 2,667 IG Parent Corporation (Infogain) 2,500 NexRev LLC 2,400 Centre Technologies Holdings, LLC 2,400 Burning Glass Intermediate Holding Company, Inc. 2,397 Engineering Research & Consulting, LLC 2,293 GS HVAM Intermediate, LLC 2,273 Imaging Business Machines, L.L.C. 2,174 Sales Performance International, LLC 2,130 Cybermedia Technologies, LLC 2,000 The Affiliati Network, LLC 2,000 PurgeRite, LLC 1,969 Elgin AcquireCo, LLC 1,877 Career Team Holdings, LLC 1,800 NinjaTrader, LLC 1,750 SPAU Holdings, LLC 1,661 Batjer TopCo, LLC 1,620 Trantech Radiator Topco, LLC 1,600 Chamberlin Holding LLC 1,600 Pinnacle TopCo, LLC 1,600 Colonial Electric Company LLC 1,600 Acumera, Inc. 1,598 Channel Partners Intermediateco, LLC 1,554 GULF PACIFIC ACQUISITION, LLC 1,515 Bond Brand Loyalty ULC 1,427 Bluestem Brands, Inc. 1,374 American Health Staffing Group, Inc. 1,333 Escalent, Inc. 1,326 Nebraska Vet AcquireCo, LLC 1,250 CaseWorthy, Inc. 1,230 Gamber-Johnson Holdings, LLC 1,200 Clad-Rex Steel, LLC 1,200 Invincible Boat Company, LLC. 1,080 ATS Operating, LLC 1,044 ArborWorks, LLC 868 Mystic Logistics Holdings, LLC 800 Orttech Holdings, LLC 800 Barfly Ventures, LLC 760 Mini Melts of America, LLC 655 Analytical Systems Keco Holdings, LLC 580 Eastern Wholesale Fence LLC 520 Jensen Jewelers of Idaho, LLC 500 MS Private Loan Fund II 500 Island Pump and Tank, LLC 456 Jackmont Hospitality, Inc. 441 Gulf Publishing Holdings, LLC 400 Wall Street Prep, Inc. 400 Vitesse Systems 386 ITA Holdings Group, LLC 286 Roof Opco, LLC 233 GRT Rubber Technologies LLC 204 AAC Holdings, Inc. 200 Obra Capital, Inc. 148 Inspire Aesthetics Management, LLC 50 Buca C, LLC 32 Adams Publishing Group, LLC 2 Total Loan Commitments $ 256,215 Total Commitments $ 288,160 ____________________ (1) This table excludes commitments related to six additional Other Portfolio investments for which the investment period has expired and remaining commitments may only be drawn to pay fund expenses. The Company does not expect any material future capital to be called on its commitment to these investments and as a result has excluded those commitments from this table. (2) This table excludes commitments related to five additional Other Portfolio investments for which the investment period has expired and remaining commitments may only be drawn to pay fund expenses or for follow on investments in existing portfolio companies. The Company does not expect any material future capital to be called on its commitment to these investments to pay fund expenses, and based on representations from the fund manager, the Company does not expect any further capital will be called on its commitment for follow on investments. As a result, the Company has excluded those commitments from this table. Main Street will fund its unfunded commitments from the same sources it uses to fund its investment commitments that are funded at the time they are made (which are typically through existing cash and cash equivalents and borrowings under the Credit Facilities). Main Street follows a process to manage its liquidity and ensure that it has available capital to fund its unfunded commitments as necessary. The Company had no unrealized appreciation or depreciation on the outstanding unfunded commitments as of June 30, 2024. Main Street may, from time to time, be involved in litigation arising out of its operations in the normal course of business or otherwise. Furthermore, third parties may try to impose liability on Main Street in connection with the activities of its portfolio companies. While the outcome of any current legal proceedings cannot at this time be predicted with certainty, Main Street does not expect any current matters will materially affect its financial condition or results of operations; however, there can be no assurance whether any pending legal proceedings will have a material adverse effect on Main Street’s financial condition or results of operations in any future reporting period.

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	6 Months Ended
	Jun. 30, 2024
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS	RELATED PARTY TRANSACTIONS As discussed further in Note D — External Investment Manager , the External Investment Manager is treated as a wholly-owned portfolio company of Main Street and is included as part of Main Street’s Investment Portfolio. At June 30, 2024, Main Street had a receivable of $9.8 million due from the External Investment Manager, which included (i) $6.5 million related primarily to operating expenses incurred by Main Street as required to support the External Investment Manager’s business and amounts due from the External Investment Manager to Main Street under a tax sharing agreement (see further discussion in Note D — External Investment Manager ) and (ii) $3.3 million of dividends declared but not paid by the External Investment Manager. MSCC has entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for the External Investment Manager’s relationship with MSC Income and its other clients (see further discussion in Note A.1. — Organization and Basis of Presentation — Organization and Note D — External Investment Manager ). From time to time, Main Street may make investments in clients of the External Investment Manager in the form of debt or equity capital on terms approved by Main Street’s Board of Directors, including each director who is not an “interested person,” as such term is defined in Section 2(a)(19) of the 1940 Act. In May 2023, Main Street purchased 255,755 shares of MSC Income’s common stock from MSC Income at the price shares were purchased by MSC Income stockholders pursuant to MSC Income’s dividend reinvestment plan for its May 2023 dividend on such date. In August 2023, Main Street purchased an additional 348,542 shares of MSC Income’s common stock from MSC Income at the share price at which shares were purchased by MSC Income stockholders pursuant to MSC Income’s dividend reinvestment plan for its August 2023 dividend. In September 2023, Main Street purchased an additional 115,385 shares of MSC Income’s common stock at a price of $6.50 per share in the modified “Dutch Auction” tender offer commenced by MSC Income and Main Street in August 2023 to purchase, severally and not jointly, up to an aggregate of $3.5 million of shares from stockholders of MSC Income, subject to the conditions described in the offer to purchase dated August 16, 2023. In October 2023 Main Street purchased 475,888 shares of MSC Income’s common stock from MSC Income at the price shares were purchased by MSC Income stockholders pursuant to MSC Income’s dividend reinvestment plan for MSC Income’s October 2023 dividend on such date. In January 2024, Main Street purchased 314,070 shares of MSC Income’s common stock from MSC Income at the price shares were purchased by MSC Income stockholders pursuant to MSC Income’s dividend reinvestment plan for its January 2024 dividend on such date. In May 2024, Main Street purchased 315,259 shares of MSC Income’s common stock from MSC Income at the price shares were purchased by MSC Income stockholders pursuant to MSC Income’s dividend reinvestment plan for its May 2024 dividend on such date. Each of Main Street’s purchases of MSC Income common stock was unanimously approved by the Board of Directors and MSC Income’s board of directors, including each director who is not an “interested person,” as such term is defined in Section 2(a)(19) of the 1940 Act, of each board. As of June 30, 2024, Main Street owned 1,919,596 shares of MSC Income’s common stock. In addition, certain of Main Street’s officers and employees own shares of MSC Income and therefore have direct pecuniary interests in MSC Income. In December 2020, the External Investment Manager entered into an investment management agreement with the Private Loan Fund to provide investment advisory and management services in exchange for an asset-based fee and certain incentive fees. The Private Loan Fund is a private investment fund exempt from registration under the 1940 Act that co-invests with Main Street in Main Street’s Private Loan investment strategy. In connection with the Private Loan Fund’s initial closing in December 2020, Main Street committed to contribute up to $10.0 million as a limited partner and is entitled to distributions on such interest. In February 2022, Main Street increased its total commitment to the Private Loan Fund from $10.0 million to $15.0 million. In addition, certain of Main Street’s officers and employees (and certain of their immediate family members) have made capital commitments to the Private Loan Fund as limited partners and therefore have direct pecuniary interests in the Private Loan Fund. As of June 30, 2024, Main Street has funded $14.3 million of its limited partner commitment and Main Street’s unfunded commitment was $0.7 million. Main Street’s limited partner commitment to the Private Loan Fund was unanimously approved by the Board of Directors, including each director who is not an “interested person,” as such term is defined in Section 2(a)(19) of the 1940 Act. In March 2022, Main Street provided the Private Loan Fund with a revolving line of credit pursuant to a Secured Revolving Promissory Note, dated March 17, 2022 (the “PL Fund 2022 Note”), which provides for borrowings up to $10.0 million. Borrowings under the PL Fund 2022 Note bear interest at a fixed rate of 5.00% per annum and mature on the date upon which the Private Loan Fund’s investment period concludes, which is scheduled to occur in March 2026. Available borrowings under the PL Fund 2022 Note are subject to a 0.25% non-use fee. The PL Fund 2022 Note was unanimously approved by Main Street’s Board of Directors, including each director who is not an “interested person,” as such term is defined in Section 2(a)(19) of the 1940 Act. As of June 30, 2024, there were $7.0 million of borrowings outstanding under the PL Fund 2022 Note. In September 2023, the External Investment Manager entered into an investment management agreement with the Private Loan Fund II to provide investment advisory and management services in exchange for an asset-based fee and certain incentive fees. The Private Loan Fund II is a private investment fund exempt from registration under the 1940 Act that co-invests with Main Street in Main Street’s Private Loan investment strategy. In connection with the Private Loan Fund II’s initial closing in September 2023, Main Street committed to contribute up to $15.0 million (limited to 20% of total commitments) as a limited partner and is entitled to distributions on such interest. In addition, certain of Main Street’s officers and employees (and certain of their immediate family members) have made capital commitments to the Private Loan Fund II as limited partners and therefore have direct pecuniary interests in the Private Loan Fund II. As of June 30, 2024, Main Street has funded $2.2 million of its limited partner commitment and Main Street’s unfunded commitment was $8.7 million. Main Street’s limited partner commitment to the Private Loan Fund II was unanimously approved by the Board of Directors, including each director who is not an “interested person,” as such term is defined in Section 2(a)(19) of the 1940 Act. In September 2023, Main Street provided the Private Loan Fund II with a revolving line of credit pursuant to a Secured Revolving Promissory Note, dated September 5, 2023 (the “PL Fund II 2023 Note”), which provides for borrowings up to $50.0 million. Borrowings under the PL Fund II 2023 Note bear interest at a rate of SOFR plus 3.5% per annum, subject to a 2.0% SOFR floor, and mature on September 5, 2025. Available borrowings under the PL Fund II 2023 Note are subject to a 0.25% non-use fee. The borrowings are collateralized by all assets of the Private Loan Fund II. The PL Fund II 2023 Note was unanimously approved by Main Street’s Board of Directors, including each director who is not an “interested person,” as such term is defined in Section 2(a)(19) of the 1940 Act. As of June 30, 2024, there were $49.5 million of borrowings outstanding under the PL Fund II 2023 Note. As described in Note B.9. — Summary of Significant Accounting Policies — Deferred Compensation Plan

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	6 Months Ended
	Jun. 30, 2024
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS Our management has evaluated subsequent events through the date of issuance of the consolidated financial statements, and identified the following to report: In August 2024, Main Street declared a supplemental dividend of $0.30 per share payable in September 2024. This supplemental dividend is in addition to the previously announced regular monthly dividends that Main Street declared of $0.245 per share for each of July, August and September 2024, or total regular monthly dividends of $0.735 per share for the third quarter of 2024. In August 2024, Main Street also declared regular monthly dividends of $0.245 per share for each month of October, November and December of 2024. These regular monthly dividends equal a total of $0.735 per share for the fourth quarter of 2024, representing a 4.3% increase from the regular monthly dividends paid in the fourth quarter of 2023. Including the regular monthly and supplemental dividends declared for the third and fourth quarters of 2024, Main Street will have paid $42.625 per share in cumulative dividends since its October 2007 initial public offering. After quarter end, Main Street received approval from the SBA for $63.8 million of additional SBIC funding which it expects to draw in the third quarter of 2024, at which point the total outstanding amount of SBIC debentures would equal the regulatory maximum amount of $350.0 million.

Consolidated Schedule of Inve_3

Consolidated Schedule of Investments In and Advances to Affiliates	6 Months Ended
	Jun. 30, 2024
Investments in and Advances to Affiliates, Schedule of Investments [Abstract]
Consolidated Schedule of Investments In and Advances to Affiliates	Company Total Rate Base Rate Spread PIK Rate Type of Investment (1) (10) (11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, Majority-owned investments Analytical Systems Keco Holdings, LLC 15.38% SF+ 10.00% Secured Debt (12) (8) $ — $ — $ — $ 219 $ 1 $ — $ 220 15.38% SF+ 10.00% Secured Debt (8) — — 346 4,084 34 195 3,923 14.13% Preferred Member Units (8) — — — — — — — Preferred Member Units (8) — 760 — 4,860 760 — 5,620 Warrants (8) — — — — — — — Brewer Crane Holdings, LLC 15.48% SF+ 10.00% Secured Debt (9) — — 429 5,498 14 248 5,264 Preferred Member Units (9) — (320) 60 5,620 — 320 5,300 Café Brazil, LLC Member Units (8) — (189) 20 1,980 — 190 1,790 California Splendor Holdings LLC 14.00% 4.00% Secured Debt (9) — (79) 2,088 27,655 299 79 27,875 Preferred Member Units (9) — — 125 15,695 — — 15,695 15.00% 15.00% Preferred Member Units (9) — — 572 4,601 5,572 — 10,173 Clad-Rex Steel, LLC Secured Debt (12) (5) — — 1 — — — — 11.50% Secured Debt (5) — — 512 8,422 — 621 7,801 10.00% Secured Debt (5) — — 51 1,004 — 19 985 Member Units (5) — 1,010 422 5,200 1,010 — 6,210 Member Units (5) — (179) — 1,129 — 179 950 Cody Pools, Inc. Secured Debt (12) (8) — 4 31 — 1,264 1,264 — 12.50% Secured Debt (8) — (6) 2,604 42,073 6 1,278 40,801 Preferred Member Units (8) — 2,010 1,508 72,470 2,010 — 74,480 CompareNetworks Topco, LLC SF+ 9.00% Secured Debt (9) — — — — — — — 14.48% SF+ 9.00% Secured Debt (9) — — 247 3,454 — 357 3,097 Preferred Member Units (9) — (1,520) — 14,450 — 1,520 12,930 Cybermedia Technologies, LLC Secured Debt (12) (6) — — 5 — — — — 13.00% Secured Debt (6) — — 1,881 28,389 35 975 27,449 Preferred Member Units (6) — 1,020 1,041 15,000 1,020 — 16,020 Datacom, LLC 7.50% Secured Debt (8) — — 14 447 226 405 268 10.00% Secured Debt (8) — — 491 7,587 73 135 7,525 Preferred Member Units (8) — 130 — 70 130 — 200 Direct Marketing Solutions, Inc. Secured Debt (9) — (14) 48 1,233 1,289 2,522 — 14.00% Secured Debt (9) — (23) 1,797 25,543 23 843 24,723 Preferred Stock (9) — (1,140) — 20,740 — 1,140 19,600 Elgin AcquireCo, LLC SF+ 6.00% Secured Debt (12) (5) — — 4 (7) 1 — (6) 12.00% Secured Debt (5) — — 1,133 18,632 21 469 18,184 9.00% Secured Debt (5) — — 285 6,252 2 24 6,230 Common Stock (5) — (360) — 6,090 — 360 5,730 Common Stock (5) — 80 — 1,670 80 — 1,750 Gamber-Johnson Holdings, LLC SF+ 7.50% Secured Debt (12) (5) — — 3 — — — — 10.50% SF+ 7.50% Secured Debt (5) — (61) 2,763 54,078 61 4,861 49,278 Member Units (5) — 9,840 3,001 96,710 9,840 — 106,550 GRT Rubber Technologies LLC 11.48% SF+ 6.00% Secured Debt (12) (8) — 2 163 2,400 746 — 3,146 13.48% SF+ 8.00% Secured Debt (8) — (23) 2,782 40,493 23 23 40,493 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1) (10) (11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, Member Units (8) — — 84 44,440 — — 44,440 Gulf Publishing Holdings, LLC SF+ 9.50% Secured Debt (12) (8) — — — — — — — 12.50% 12.50% Secured Debt (8) — (336) 76 2,284 — 336 1,948 Preferred Equity (8) — (2,460) — 2,460 — 2,460 — Member Units (8) — — — — — — — IG Investor, LLC Secured Debt (12) (6) — — 14 (35) 4 — (31) 13.00% Secured Debt (6) — — 2,448 36,934 42 880 36,096 Common Equity (6) — — — 14,400 — — 14,400 Jensen Jewelers of Idaho, LLC P+ 6.75% Secured Debt (12) (9) — — 3 — — — — 15.00% P+ 6.75% Secured Debt (9) — — 149 1,998 — 198 1,800 Member Units (9) — (90) 769 12,420 — 90 12,330 Kickhaefer Manufacturing Company, LLC 12.00% Secured Debt (5) — — 1,174 19,774 8 2,400 17,382 9.00% Secured Debt (5) — — 174 3,805 164 21 3,948 Preferred Equity (5) — 2,240 — 9,690 2,240 — 11,930 Member Units (5) — (240) 65 2,730 — 240 2,490 Metalforming Holdings, LLC Secured Debt (12) (7) — — 5 — — — — 10.75% Secured Debt (7) — — 1,370 23,623 31 1,146 22,508 8.00% 8.00% Preferred Equity (7) — 236 — 6,035 236 119 6,152 Common Stock (7) — 1,570 434 1,500 1,570 — 3,070 MH Corbin Holding LLC 14.00% Secured Debt (5) — — 369 5,022 — 160 4,862 Preferred Member Units (5) — — — 330 — — 330 Preferred Member Units (5) — — — — — — — MSC Adviser I, LLC Member Units (8) — 12,497 6,312 174,063 12,497 — 186,560 Mystic Logistics Holdings, LLC Secured Debt (12) (6) — — 2 — — — — 10.00% Secured Debt (6) — 18 292 5,746 — — 5,746 Common Stock (6) — (290) 1,924 26,390 — 290 26,100 OMi Topco, LLC 12.00% Secured Debt (8) — (16) 766 12,750 16 766 12,000 Preferred Member Units (8) — 11,900 2,475 36,380 11,900 — 48,280 PPL RVs, Inc. SF+ 8.75% Secured Debt (8) — (1) 1 — 1 1 — 14.23% SF+ 8.75% Secured Debt (8) — (30) 1,438 19,877 30 886 19,021 Common Stock (8) — (1,110) — 16,980 — 1,110 15,870 Common Stock (8) — 146 — 368 146 — 514 Principle Environmental, LLC 13.00% Secured Debt (8) — — 399 5,829 12 — 5,841 Preferred Member Units (8) — 50 491 10,750 50 — 10,800 Common Stock (8) — — — 510 — — 510 Quality Lease Service, LLC Member Units (7) — — — 460 — — 460 Robbins Bros. Jewelry, Inc. 10.00% Secured Debt (9) — — 8 (26) 2 — (24) 12.50% 10.00% Secured Debt (9) — (12,978) 1,083 30,798 19 13,429 17,388 Preferred Equity (9) — — 6 — — — — Trantech Radiator Topco, LLC Secured Debt (12) (7) — — 2 — — — — 13.50% Secured Debt (7) — 71 529 7,920 — — 7,920 Common Stock (7) — (2,970) 58 12,740 — 2,970 9,770 Volusion, LLC 10.00% Secured Debt (8) — — 106 2,100 — — 2,100 Preferred Member Units (8) — — — — — — — Company Total Rate Base Rate Spread PIK Rate Type of Investment (1) (10) (11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, Preferred Member Units (8) — 1,867 — 7,250 1,868 2,118 7,000 Preferred Member Units (8) — — — — — — — Common Stock (8) — — — — — — — Ziegler’s NYPD, LLC 12.00% Secured Debt (8) — — 27 450 — — 450 6.50% Secured Debt (8) — — 33 945 — — 945 14.00% Secured Debt (8) — (369) 195 2,080 — 370 1,710 Preferred Member Units (8) — — — — — — — Warrants (8) — — — — — — — Other controlled investments 2717 MH, L.P. LP Interests (2717 MH, L.P.) (8) 57 2,941 278 6,050 2,998 57 8,991 LP Interests (2717 HPP-MS, L.P.) (8) — 60 — 315 59 — 374 LP Interests (2717 GRE-LP, L.P.) (8) — — — — 441 — 441 ASC Interests, LLC 13.00% Secured Debt (8) — — 27 400 — — 400 13.00% Secured Debt (8) — — 109 1,597 1 — 1,598 Preferred Member Units (8) — — — 266 — — 266 Member Units (8) — (60) — 100 — 60 40 ATS Workholding, LLC 5.00% Secured Debt (9) — (281) — 328 167 281 214 5.00% Secured Debt (9) — (187) — 473 — 188 285 Preferred Member Units (9) — — — — — — — Barfly Ventures, LLC 7.00% Secured Debt (12) (5) — — 26 711 — — 711 Member Units (5) — 580 — 4,140 580 — 4,720 Batjer TopCo, LLC 10.00% Secured Debt (12) (8) — (6) 18 — 451 6 445 10.00% Secured Debt (12) (8) — — 14 270 — — 270 10.00% Secured Debt (8) — (67) 545 10,575 10 67 10,518 Preferred Stock (8) — (430) 407 6,150 — 430 5,720 Bolder Panther Group, LLC 13.43% SF+ 8.05% Secured Debt (9) — (27) 6,787 96,556 7,563 1,283 102,836 8.00% Class B Preferred Member Units (9) — 3,690 1,390 31,020 3,690 — 34,710 Secured Debt (9) — — 95 — — — — Bridge Capital Solutions Corporation 13.00% Secured Debt (6) — — 579 8,813 — — 8,813 13.00% Secured Debt (6) — — 66 1,000 — — 1,000 Preferred Member Units (6) — — 50 1,000 — — 1,000 Warrants (6) — (25) — 1,808 — 25 1,783 Warrants (6) — (35) — 2,482 — 35 2,447 CBT Nuggets, LLC Member Units (9) — (590) 1,235 50,130 — 590 49,540 Centre Technologies Holdings, LLC SF+ 10.00% Secured Debt (12) (8) — — 6 — — — — 15.48% SF+ 10.00% Secured Debt (8) — 223 1,383 — 21,974 1,512 20,462 Secured Debt (8) — (62) 281 17,574 — 17,574 — Preferred Member Units (8) — 460 60 11,040 460 — 11,500 Chamberlin Holding LLC SF+ 6.00% Secured Debt (12) (8) — (45) 49 — 45 45 — 13.49% SF+ 8.00% Secured Debt (8) — (1) 1,066 15,620 1 1 15,620 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1) (10) (11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, Member Units (8) — 710 3,396 29,320 710 — 30,030 Member Units (8) — 290 46 2,860 290 — 3,150 Charps, LLC 10.00% Unsecured Debt (5) — (244) 528 5,694 244 244 5,694 Preferred Member Units (5) — (110) 155 15,690 — 110 15,580 Colonial Electric Company LLC Secured Debt (12) (6) — — 4 — — — — 12.00% Secured Debt (6) — 385 1,246 21,627 423 3,910 18,140 Preferred Member Units (6) — (1,440) 1,440 2,400 — 2,400 — Preferred Member Units (6) — 4,060 556 7,680 4,060 — 11,740 Compass Systems & Sales, LLC 13.50% Secured Debt (5) — — 42 — 1,584 — 1,584 13.50% Secured Debt (5) — — 1,191 17,034 17 — 17,051 Preferred Equity (5) — 496 120 7,454 496 — 7,950 Copper Trail Fund Investments LP Interests (CTMH, LP) (9) — — — 568 — — 568 Digital Products Holdings LLC 15.38% SF+ 10.00% Secured Debt (5) — — 1,116 14,690 34 1,453 13,271 Preferred Member Units (5) — — 100 9,835 — — 9,835 Garreco, LLC SF+ 8.00% Secured Debt (8) — — 92 3,088 — 3,088 — Member Units (8) — — 43 1,580 — — 1,580 Harrison Hydra-Gen, Ltd. Common Stock (8) — 560 — 4,660 560 — 5,220 JorVet Holdings, LLC 12.00% Secured Debt (9) — — 1,584 25,483 30 647 24,866 Preferred Equity (9) — — 490 10,741 — — 10,741 KBK Industries, LLC 9.00% Secured Debt (5) — (8) 214 4,700 8 408 4,300 Member Units (5) — 2,050 1,135 22,770 2,050 — 24,820 MS Private Loan Fund I, LP 5.00% Secured Debt (12) (8) — — 32 — 15,500 8,500 7,000 LP Interests (12) (8) — (58) 1,089 14,527 — 58 14,469 MS Private Loan Fund II, LP 8.88% SF+ 3.50% Secured Debt (12) (8) — — 1,446 23,367 32,541 6,500 49,408 LP Interests (12) (8) — 85 93 1,561 2,249 — 3,810 MSC Income Fund, Inc. Common Equity (8) — (131) 868 10,025 5,000 131 14,894 NAPCO Precast, LLC Member Units (8) — (1,350) 63 11,730 — 1,350 10,380 Nello Industries Investco, LLC 11.88% SF+ 6.50% Secured Debt (12) (5) — — 118 — 10,946 — 10,946 13.50% Secured Debt (5) — — 751 — 24,556 — 24,556 Common Equity (5) — — — — 12,120 — 12,120 NexRev LLC 10.00% Secured Debt (12) (8) — — 42 — 1,600 — 1,600 10.00% Secured Debt (8) — 34 522 9,751 60 — 9,811 Preferred Member Units (8) — 1,860 471 6,350 1,860 — 8,210 NRP Jones, LLC 12.00% Secured Debt (5) — — 126 2,080 — — 2,080 Member Units (5) — (77) — 1,466 — 77 1,389 Member Units (5) — (3) — 53 — 3 50 NuStep, LLC 11.98% SF+ 6.50% Secured Debt (5) — — 221 3,600 — — 3,600 12.00% Secured Debt (5) — — 1,125 18,426 6 — 18,432 Preferred Member Units (5) — 960 — 9,240 960 — 10,200 Preferred Member Units (5) — — — 5,150 — — 5,150 Orttech Holdings, LLC SF+ 11.00% Secured Debt (12) (5) — — — — — — — 16.48% SF+ 11.00% Secured Debt (5) — (23) 1,852 22,040 23 103 21,960 Preferred Stock (5) — (1,990) 264 17,050 — 1,990 15,060 Pearl Meyer Topco LLC 12.00% Secured Debt (6) — — 279 3,500 1,500 — 5,000 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1) (10) (11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, 12.00% Secured Debt (6) — 110 1,724 20,000 18,219 — 38,219 12.00% Secured Debt (6) — (13) 1,692 27,681 13 13 27,681 Preferred Equity (6) — 9,250 5,885 44,090 9,250 — 53,340 Pinnacle TopCo, LLC Secured Debt (12) (8) — — 12 444 2 460 (14) 13.00% Secured Debt (8) — — 2,044 30,339 30 — 30,369 Preferred Equity (8) — 2,790 853 12,540 2,790 — 15,330 River Aggregates, LLC Member Units (8) (409) 80 — 3,710 80 — 3,790 Tedder Industries, LLC 12.00% 12.00% Secured Debt (9) — — 56 1,726 — — 1,726 12.00% 12.00% Secured Debt (9) — (9,605) 461 14,262 — 9,605 4,657 Preferred Member Units (9) — — — — — — — Preferred Member Units (9) — — — — — — — Preferred Member Units (9) — — — — — — — Televerde, LLC Member Units (8) — (2,164) — 4,734 — 2,164 2,570 Preferred Stock (8) — — — 1,794 — 1 1,793 Vision Interests, Inc. Series A Preferred Stock (9) — — — 3,000 — — 3,000 VVS Holdco LLC SF+ 6.00% Secured Debt (12) (5) — — 8 — — — — 11.50% Secured Debt (5) — — 1,648 28,035 34 1,160 26,909 Preferred Equity (5) — — 204 12,240 — — 12,240 — — — — — — — — — — — — — — Other — — — — — — — Amounts related to investments transferred to or from other 1940 Act classification during the period — 4,370 2,811 60,384 — — — Total Control investments $ (352) $ 37,659 $ 102,437 $ 2,006,698 $ 243,661 $ 114,546 $ 2,075,429 Affiliate Investments 423 HAR, LP LP Interests (423 HAR, L.P.) (8) $ — $ 51 $ — $ 996 $ 52 $ — $ 1,048 AAC Holdings, Inc. 18.00% 18.00% Secured Debt (12) (7) — (2) 44 418 60 2 476 18.00% 18.00% Secured Debt (7) — (44) 1,404 13,895 1,919 44 15,770 Common Stock (7) — — — — — — — Warrants (7) — — — — — — — Boccella Precast Products LLC 10.00% Secured Debt (6) — (55) 16 320 — 55 265 Member Units (6) — (1,680) 18 1,990 — 1,680 310 Buca C, LLC 14.00% 14.00% Secured Debt (7) — — 563 12,144 371 — 12,515 6.00% 6.00% Preferred Member Units (7) — — — — — — — 14.00% 14.00% Secured Debt (12) (7) — — — — 58 — 58 Career Team Holdings, LLC 11.38% SF+ 6.00% Secured Debt (12) (6) — — 53 881 1,803 1,800 884 13.00% Secured Debt (6) — — 1,330 19,906 21 180 19,747 Common Stock (6) — — — 4,500 — — 4,500 Classic H&G Holdings, LLC SF+ 6.00% Secured Debt (6) — — 181 4,560 — 4,560 — Secured Debt (6) — (50) 654 19,274 50 19,324 — Preferred Member Units (6) 10,365 (7,771) 1,470 16,000 10,365 23,896 2,469 Congruent Credit Opportunities Funds LP Interests (Congruent Credit Opportunities Fund III, LP) (8) — (51) 152 4,352 — 1,810 2,542 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1) (10) (11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, DMA Industries, LLC 12.00% Secured Debt (7) — (28) 1,139 18,800 28 2,028 16,800 Preferred Equity (7) — (1,716) — 7,660 3,068 1,716 9,012 12.00% Secured Debt (7) — 6 8 — 560 — 560 Dos Rios Partners LP Interests (Dos Rios Partners, LP) (8) — 111 — 8,443 111 142 8,412 LP Interests (Dos Rios Partners - A, LP) (8) — 35 — 2,631 35 45 2,621 Dos Rios Stone Products LLC Class A Preferred Units (8) — (250) — 1,580 — 250 1,330 EIG Fund Investments LP Interests (EIG Global Private Debt Fund-A, L.P.) (8) — — 42 760 1 — 761 FCC Intermediate Holdco, LLC 13.00% Secured Debt (5) — — 1,198 — 28,691 — 28,691 Warrants (5) — — — — 3,920 — 3,920 Flame King Holdings, LLC Preferred Equity (9) — 7,850 1,570 27,900 7,850 — 35,750 Freeport Financial SBIC Fund LP LP Interests (Freeport Financial SBIC Fund LP) (5) — (77) — 3,012 — 356 2,656 LP Interests (Freeport First Lien Loan Fund III LP) (5) — — 255 3,704 1 1,109 2,596 GFG Group, LLC 8.00% Secured Debt (5) — (10) 388 9,345 10 10 9,345 Preferred Member Units (5) — (1,650) 781 11,460 — 1,650 9,810 Gulf Manufacturing, LLC SF+ 7.63% Secured Debt (12) (8) — 47 111 — — — — 13.00% SF+ 7.63% Secured Debt (8) — 373 2,887 — 40,000 — 40,000 Member Units (8) — 5,910 1,092 9,070 5,910 — 14,980 Hawk Ridge Systems, LLC 11.48% SF+ 6.00% Secured Debt (9) — — 142 1,974 3,876 3,760 2,090 12.50% Secured Debt (9) — (27) 2,887 45,256 27 27 45,256 Preferred Member Units (9) — 600 — 17,460 600 — 18,060 Preferred Member Units (9) — 30 — 920 30 — 950 Houston Plating and Coatings, LLC 8.00% Unsecured Convertible Debt (8) — 60 121 2,880 60 — 2,940 Member Units (8) — (130) 34 3,340 — 130 3,210 HPEP 3, L.P. LP Interests (HPEP 3, L.P.) (12) (8) — 247 — 4,225 247 — 4,472 LP Interests (HPEP 4, L.P.) (12) (8) — 329 — 3,773 1,211 — 4,984 LP Interests (423 COR, L.P.) (8) — 675 88 1,869 2,175 — 4,044 I-45 SLF LLC Member Units (Fully diluted 20.0%; 21.75% profits interest) (8) (7,107) 6,710 429 13,490 — 13,490 — Independent Pet Partners Intermediate Holdings, LLC Common Equity (6) — 420 — 17,690 420 — 18,110 Infinity X1 Holdings, LLC 13.00% Secured Debt (9) — — 1,147 17,403 33 2,050 15,386 Preferred Equity (9) — — 512 4,000 368 — 4,368 Integral Energy Services 13.06% SF+ 7.50% Secured Debt (8) — 330 955 13,891 380 1,570 12,701 10.00% 10.00% Preferred Equity (8) — 125 15 300 140 — 440 Common Stock (8) — 390 21 160 390 — 550 Iron-Main Investments, LLC 13.50% Secured Debt (5) — — 311 4,487 3 — 4,490 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1) (10) (11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, 13.50% Secured Debt (5) — — 203 2,922 2 — 2,924 13.50% Secured Debt (5) — — 610 8,944 — — 8,944 13.50% Secured Debt (5) — — 1,363 19,503 26 2,000 17,529 13.50% Secured Debt (5) — — 752 10,273 45 400 9,918 Common Stock (5) — — — 2,680 — — 2,680 Preferred Equity (5) — — — — 711 — 711 ITA Holdings Group, LLC 16.46% SF+ 9.00% 2.00% Secured Debt (8) — — 86 816 365 — 1,181 16.46% SF+ 9.00% 2.00% Secured Debt (12) (8) — — 63 697 10 — 707 15.46% SF+ 8.00% 2.00% Secured Debt (8) — — 476 3,430 177 — 3,607 17.46% SF+ 10.00% 2.00% Secured Debt (8) — — 521 3,430 177 — 3,607 Warrants (8) — 569 — 2,091 569 — 2,660 Johnson Downie Opco, LLC Secured Debt (12) (8) — (3) 12 — 3 3 — 15.00% Secured Debt (8) — (29) 1,829 24,207 29 2,729 21,507 Preferred Equity (8) — 3,450 469 9,620 3,450 — 13,070 Nebraska Vet AcquireCo, LLC 12.48% SF+ 7.00% Secured Debt (12) (5) — 8 19 — 1,250 — 1,250 Secured Debt (5) — (121) 1,205 25,794 — 25,794 — Secured Debt (5) — (43) 454 10,500 — 10,500 — Preferred Member Units (5) — 4,390 474 15,020 4,390 — 19,410 12.50% Secured Debt (5) — 140 1,425 — 62,200 — 62,200 Secured Debt (5) — 198 108 — — — — OnAsset Intelligence, Inc. 12.00% 12.00% Secured Debt (8) — (110) — 326 — 111 215 12.00% 12.00% Secured Debt (8) — (113) — 332 — 112 220 12.00% 12.00% Secured Debt (8) — (243) — 716 — 243 473 12.00% 12.00% Secured Debt (8) — (506) — 1,493 — 506 987 10.00% 10.00% Unsecured Debt (8) — — — 305 — — 305 7.00% 7.00% Preferred Stock (8) — — — — — — — Common Stock (8) — — — — — — — Warrants (8) — — — — — — — Oneliance, LLC SF+ 10.00% Secured Debt (7) — — — — — — — 15.48% SF+ 10.00% Secured Debt (7) — 83 438 5,350 90 240 5,200 Preferred Stock (7) — 522 — 1,128 522 — 1,650 Quality Lease Service, LLC Preferred Member Units (8) (2,505) 2,500 — — 2,500 2,500 — SI East, LLC 11.75% Secured Debt (12) (7) — (2) 121 1,125 2,252 1,127 2,250 Secured Debt (7) — (241) 2,599 54,536 — 54,536 — 12.62% Secured Debt (7) — 58 1,464 — 67,661 — 67,661 Preferred Member Units (7) — (1,480) 1,858 19,170 — 1,480 17,690 Slick Innovations, LLC 14.00% Secured Debt (6) — 86 1,231 11,440 7,600 960 18,080 Common Stock (6) — 26 234 2,310 26 456 1,880 Student Resource Center, LLC 8.50% 8.50% Secured Debt (6) — (1,546) — 3,190 — 1,546 1,644 Preferred Equity (6) — — — — — — — Superior Rigging & Erecting Co. Secured Debt (7) — — 1,193 20,427 73 20,500 — Preferred Member Units (7) — 490 — 5,940 490 — 6,430 The Affiliati Network, LLC Secured Debt (12) (9) — — 9 150 642 800 (8) 10.00% Secured Debt (9) — — 440 7,347 14 1,200 6,161 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1) (10) (11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, Preferred Stock (9) — — 53 6,400 — — 6,400 Preferred Stock (9) — — — 172 64 — 236 UnionRock Energy Fund II, LP LP Interests (12) (9) — 197 — 5,694 198 168 5,724 UnionRock Energy Fund III, LP LP Interests (12) (9) — 994 — 2,838 3,494 — 6,332 UniTek Global Services, Inc. 15.00% 15.00% Secured Convertible Debt (6) — — 132 3,889 132 — 4,021 15.00% 15.00% Secured Convertible Debt (6) — — 65 1,908 64 — 1,972 20.00% 20.00% Preferred Stock (6) — (224) 270 2,833 271 224 2,880 20.00% 20.00% Preferred Stock (6) — 140 — 3,698 140 — 3,838 19.00% 19.00% Preferred Stock (6) — — — — — — — 13.50% 13.50% Preferred Stock (6) — — — — — — — Common Stock (6) — — — — — — — Universal Wellhead Services Holdings, LLC 14.00% 14.00% Preferred Member Units (8) — (150) — 150 — 150 — Member Units (8) — — — — — — — Urgent DSO LLC 13.50% Secured Debt (5) — — 631 — 8,718 — 8,718 9.00% 9.00% Preferred Equity (5) — — 136 — 4,136 — 4,136 World Micro Holdings, LLC 13.00% Secured Debt (7) — — 778 12,028 12 — 12,040 Preferred Equity (7) — — — 3,845 — — 3,845 Other — — — — — — — Amounts related to investments transferred to or from other 1940 Act classification during the period — (4,370) (2,811) (60,384) — — — Total Affiliate investments $ 753 $ 15,428 $ 40,928 $ 615,002 $ 287,347 $ 209,969 $ 752,764 ____________________ (1) The principal amount, the ownership detail for equity investments and if the investment is income producing is included in the Consolidated Schedule of Investments included in Item 1. Consolidated Financial Statements of this Quarterly Report on Form 10-Q. (2) Represents the total amount of interest, fees and dividends credited to income for the portion of the period for which an investment was included in Control or Affiliate categories, respectively. For investments transferred between Control and Affiliate categories during the period, any income or investment balances related to the time period it was in the category other than the one shown at period end is included in “Amounts related to investments transferred from other 1940 Act classifications during the period.” (3) Gross additions include increases in the cost basis of investments resulting from new portfolio investments, follow-on investments and accrued PIK interest, and the exchange of one or more existing securities for one or more new securities. Gross additions also include net increases in unrealized appreciation or net decreases in net unrealized depreciation as well as the movement of an existing portfolio company into this category and out of a different category. (4) Gross reductions include decreases in the cost basis of investments resulting from principal repayments or sales and the exchange of one or more existing securities for one or more new securities. Gross reductions also include net increases in net unrealized depreciation or net decreases in unrealized appreciation as well as the movement of an existing portfolio company out of this category and into a different category. (5) Portfolio company located in the Midwest region as determined by location of the corporate headquarters. The fair value as of June 30, 2024 for control investments located in this region was $514,812. This represented 20.0% of net assets as of June 30, 2024. The fair value as of June 30, 2024 for affiliate investments located in this region was $199,928. This represented 7.8% of net assets as of June 30, 2024. (6) Portfolio company located in the Northeast region and Canada as determined by location of the corporate headquarters. The fair value as of June 30, 2024 for control investments located in this region was $294,943. This represented 11.4% of net assets as of June 30, 2024. The fair value as of June 30, 2024 for affiliate investments located in this region was $80,600. This represented 3.1% of net assets as of June 30, 2024. (7) Portfolio company located in the Southeast region as determined by location of the corporate headquarters. The fair value as of June 30, 2024 for control investments located in this region was $49,880. This represented 1.9% of net assets as of June 30, 2024. The fair value as of June 30, 2024 for affiliate investments located in this region was $171,957. This represented 6.7% of net assets as of June 30, 2024. (8) Portfolio company located in the Southwest region as determined by location of the corporate headquarters. The fair value as of June 30, 2024 for control investments located in this region was $826,500. This represented 32.0% of net assets as of June 30, 2024. The fair value as of June 30, 2024 for affiliate investments located in this region was $153,574. This represented 6.0% of net assets as of June 30, 2024. (9) Portfolio company located in the West region as determined by location of the corporate headquarters. The fair value as of June 30, 2024 for control investments located in this region was $389,294. This represented 15.1% of net assets as of June 30, 2024. The fair value as of June 30, 2024 for affiliate investments located in this region was $146,705. This represented 5.7% of net assets as of June 30, 2024. (10) All of the Company’s portfolio investments are generally subject to restrictions on resale as “restricted securities,” unless otherwise noted. (11) This schedule should be read in conjunction with the Consolidated Schedule of Investments and Notes to the Consolidated Financial Statements included in Item 1. Consolidated Financial Statements of this Quarterly Report on Form 10-Q. Supplemental information can be located within the Consolidated Schedule of Investments including end of period interest rate, preferred dividend rate, maturity date, investments not paid currently in cash and investments whose value was determined using significant unobservable inputs. (12) Investment has an unfunded commitment as of June 30, 2024 (see Note K ). The fair value of the investment includes the impact of the fair value of any unfunded commitments. (13) Negative fair value is the result of the capitalized discount being greater than the principal amount outstanding on the loan. Company Total Rate Base Rate Spread PIK Rate Type of Investment (1)(10)(11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, 2023 Majority-owned investments Analytical Systems Keco Holdings, LLC L+ 10.00% Secured Debt (8) $ — $ — $ 3 $ (3) $ 1 $ — $ (2) 15.25% L+ 10.00% Secured Debt (8) — — 379 4,545 39 140 4,444 14.13% Preferred Member Units (8) — — — — — — — Preferred Member Units (8) — 566 — 3,504 566 — 4,070 Warrants (8) — — — — — — — Brewer Crane Holdings, LLC 15.17% L+ 10.00% Secured Debt (9) — (63) 429 5,964 — 311 5,653 Preferred Member Units (9) — (720) 60 7,080 — 720 6,360 Café Brazil, LLC Member Units (8) — (80) 103 2,210 — 80 2,130 California Splendor Holdings LLC 15.25% L+ 10.00% Secured Debt (9) — (7) 2,127 28,000 7 7 28,000 Preferred Member Units (9) — (2,060) 125 25,495 — 2,060 23,435 15.00% 15.00% Preferred Member Units (9) — — 301 3,994 301 — 4,295 Clad-Rex Steel, LLC Secured Debt (12) (5) — — 1 — — — — 11.50% Secured Debt (5) — (64) 621 10,440 18 824 9,634 10.00% Secured Debt (5) — — 52 1,039 — 17 1,022 Member Units (5) — (1,840) 275 8,220 — 1,840 6,380 Member Units (5) — 220 — 610 519 — 1,129 CMS Minerals Investments Member Units (9) 99 (366) 44 1,670 99 1,769 — Cody Pools, Inc. Secured Debt (12) (8) — 12 2 — — — — 12.50% Secured Debt (8) — 39 582 — 46,312 — 46,312 L+ 10.50% Secured Debt (8) — (19) 96 1,462 32 1,494 — L+ 10.50% Secured Debt (8) — (280) 2,683 40,801 — 40,801 — Preferred Member Units (8) — 6,940 1,446 58,180 6,940 — 65,120 CompareNetworks Topco, LLC L+ 9.00% Secured Debt (9) — — — — — — — 14.25% L+ 9.00% Secured Debt (9) — (5) 355 5,241 5 377 4,869 Preferred Member Units (9) — (3,450) 158 19,830 — 3,450 16,380 Cybermedia Technologies, LLC Secured Debt (12) (6) — — 2 — — — — 13.00% Secured Debt (6) — — 1,042 — 28,720 — 28,720 Preferred Member Units (6) — — — — 15,000 — 15,000 Datacom, LLC 7.50% Secured Debt (8) — — 18 223 583 90 716 10.00% Secured Debt (8) — — 507 7,789 78 135 7,732 Preferred Member Units (8) — (320) — 2,670 — 320 2,350 Direct Marketing Solutions, Inc. Secured Debt (12) (9) — (14) 23 — 14 14 — 13.00% Secured Debt (9) — (35) 1,876 27,267 35 837 26,465 Preferred Stock (9) — 1,130 343 22,220 1,130 — 23,350 Elgin AcquireCo, LLC SF+ 6.00% Secured Debt (12) (5) — — 4 (9) 1 — (8) 12.00% Secured Debt (5) — — 1,151 18,594 19 — 18,613 9.00% Secured Debt (5) — — 287 6,294 1 21 6,274 Common Stock (5) — 364 — 7,603 364 1,877 6,090 Common Stock (5) — 112 — 1,558 112 — 1,670 Gamber-Johnson Holdings, LLC SF+ 8.50% Secured Debt (12) (5) — — 3 — — — — 11.00% SF+ 8.00% Secured Debt (5) — (64) 3,598 64,078 64 4,464 59,678 Member Units (5) — 19,270 2,904 50,890 19,270 — 70,160 GRT Rubber Technologies LLC 11.17% L+ 6.00% Secured Debt (12) (8) — — 66 670 630 — 1,300 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1)(10)(11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, 2023 13.17% L+ 8.00% Secured Debt (8) — (23) 2,624 40,493 23 23 40,493 Member Units (8) — — 84 44,440 — — 44,440 Gulf Publishing Holdings, LLC L+ 9.50% Secured Debt (12) (8) — — — — — — — 12.50% Secured Debt (8) — — 151 2,284 — — 2,284 Preferred Equity (8) — — — 3,780 — — 3,780 Member Units (8) — — — — — — — IG Investor, LLC Secured Debt (12) (6) — — 84 — 761 800 (39) 13.00% Secured Debt (6) — — 896 — 37,333 — 37,333 Common Equity (6) — — — — 15,096 — 15,096 Independent Pet Partners Intermediate Holdings, LLC Common Equity (6) — — — — 18,300 — 18,300 Jensen Jewelers of Idaho, LLC P+ 6.75% Secured Debt (12) (9) — — — — — — — 15.00% P+ 6.75% Secured Debt (9) — (3) 183 2,450 3 3 2,450 Member Units (9) — (1,460) 626 14,970 — 1,460 13,510 Kickhaefer Manufacturing Company, LLC 12.00% Secured Debt (5) — — 1,407 20,374 195 — 20,569 9.00% Secured Debt (5) — — 175 3,842 1 19 3,824 Preferred Equity (5) — 510 — 7,220 510 — 7,730 Member Units (5) — (70) 60 2,850 — 70 2,780 Market Force Information, LLC L+ 11.00% Secured Debt (9) (6,662) 163 453 6,090 804 6,894 — Secured Debt (9) (25,952) 24,342 — 1,610 24,342 25,952 — Member Units (9) (16,642) 16,642 — — 16,642 16,642 — MetalForming AcquireCo, LLC Secured Debt (12) (7) — — 5 — — — — 12.75% Secured Debt (7) — — 1,518 23,576 23 — 23,599 8.00% 8.00% Preferred Equity (7) — 118 148 6,010 235 — 6,245 Common Stock (7) — (137) 619 1,537 — 137 1,400 MH Corbin Holding LLC 13.00% Secured Debt (5) — 1,150 392 4,548 1,150 195 5,503 Preferred Member Units (5) — — — — — — — Preferred Member Units (5) — — — — — — — MSC Adviser I, LLC Member Units (8) — 11,040 5,916 122,930 11,040 — 133,970 Mystic Logistics Holdings, LLC Secured Debt (12) (6) — — 2 — — — — 10.00% Secured Debt (6) — — 289 5,746 — — 5,746 Common Stock (6) — 4,320 1,977 22,830 4,320 — 27,150 OMi Topco, LLC 12.00% Secured Debt (8) — (25) 952 15,750 25 1,525 14,250 Preferred Member Units (8) — 6,500 1,350 22,810 6,500 — 29,310 PPL RVs, Inc. L+ 8.75% Secured Debt (8) — (1) 1 — 1 1 — 13.63% L+ 8.75% Secured Debt (8) — (39) 1,365 21,655 39 1,404 20,290 Common Stock (8) — (880) 157 18,950 — 880 18,070 Common Stock (8) — 12 — 238 12 — 250 Principle Environmental, LLC Secured Debt (8) — — — — — — — 13.00% Secured Debt (8) — — 397 5,806 11 — 5,817 Preferred Member Units (8) — (1,940) 429 12,420 — 1,940 10,480 Common Stock (8) — (90) — 590 — 90 500 Quality Lease Service, LLC Member Units (7) — (98) — 525 33 98 460 Robbins Bros. Jewelry, Inc. Secured Debt (12) (9) — — 16 (35) 4 — (31) 12.50% Secured Debt (9) — (444) 2,255 35,404 40 1,119 34,325 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1)(10)(11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, 2023 Preferred Equity (9) — (8,740) — 14,880 — 8,740 6,140 Trantech Radiator Topco, LLC Secured Debt (12) (7) — (2) 4 — 2 2 — 12.00% Secured Debt (7) — (9) 487 7,920 9 9 7,920 Common Stock (7) — 3,970 58 7,800 3,970 — 11,770 Volusion, LLC 10.00% Secured Debt (8) — — 54 — 2,100 — 2,100 Secured Debt (8) (3,188) 1,821 166 14,914 — 14,914 — Unsecured Convertible Debt (8) (409) 409 — — 409 409 — Preferred Member Units (8) — — — — — — — Preferred Member Units (8) — (706) — — 11,446 706 10,740 Preferred Member Units (8) — — — — — — — Common Stock (8) — (2,576) — — 2,576 2,576 — Warrants (8) — 2,576 — — — — — Ziegler’s NYPD, LLC 12.00% Secured Debt (8) — — 27 450 — — 450 6.50% Secured Debt (8) — — 33 945 — — 945 14.00% Secured Debt (8) — (215) 194 2,676 — 215 2,461 Preferred Member Units (8) — (170) — 240 — 170 70 Warrants (8) — — — — — — — Other controlled investments 2717 MH, L.P. LP Interests (2717 MH, L.P.) (8) 1,677 (675) 141 7,552 2,077 3,283 6,346 LP Interests (2717 HPP-MS, L.P.) (12) (8) — 67 — 248 67 — 315 ASC Interests, LLC 13.00% Secured Debt (12) (8) — — 27 400 — — 400 13.00% Secured Debt (8) — (52) 108 1,649 — 52 1,597 Member Units (8) — (384) — 800 94 384 510 ATS Workholding, LLC 5.00% Secured Debt (9) — (277) — 634 126 277 483 5.00% Secured Debt (9) — (286) — 1,005 — 286 719 Preferred Member Units (9) — — — — — — — Barfly Ventures, LLC 7.00% Secured Debt (12) (5) — — 44 711 — — 711 Member Units (5) — (280) — 3,320 — 280 3,040 Batjer TopCo, LLC Secured Debt (12) (8) — 7 1 (8) 8 — — Secured Debt (12) (8) — — — — — — — 10.00% Secured Debt (8) — 78 583 10,933 92 450 10,575 Preferred Stock (8) — 2,055 574 4,095 2,055 — 6,150 Bolder Panther Group, LLC Secured Debt (9) — — 1 — — — — 14.37% SF+ 9.19% Secured Debt (9) — (71) 6,976 99,194 71 1,390 97,875 8.00% Class B Preferred Member Units (9) — (300) 2,137 31,420 — 300 31,120 Bridge Capital Solutions Corporation 13.00% Secured Debt (6) — — 576 8,813 — — 8,813 13.00% Secured Debt (6) — — 65 1,000 — — 1,000 Preferred Member Units (6) — — 50 1,000 — — 1,000 Warrants (6) — 46 — 1,828 46 — 1,874 Warrants (6) — 64 — 2,512 64 — 2,576 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1)(10)(11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, 2023 CBT Nuggets, LLC Member Units (9) — 1,570 1,647 49,002 1,568 — 50,570 Centre Technologies Holdings, LLC L+ 9.00% Secured Debt (12) (8) — — 6 — — — — 14.25% L+ 9.00% Secured Debt (8) — 64 1,058 14,954 76 — 15,030 Preferred Member Units (8) — 1,700 60 8,700 1,700 — 10,400

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Pay vs Performance Disclosure
Net increase in net assets resulting from operations	$ 102,688	$ 107,147	$ 106,516	$ 79,592	$ 209,835	$ 186,107

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Jun. 30, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

N-2

N-2 - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Cover [Abstract]
Entity Central Index Key	0001396440
Amendment Flag	false
Securities Act File Number	001-33723
Document Type	10-Q
Entity Registrant Name	Main Street Capital Corporation
Entity Address, Address Line One	1300 Post Oak Boulevard
Entity Address, Address Line Two	8th Floor
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77056
City Area Code	713
Local Phone Number	350-6000
Entity Emerging Growth Company	false
General Description of Registrant [Abstract]
Investment Objectives and Practices [Text Block]	OVERVIEW OF OUR BUSINESS Our principal investment objective is to maximize our portfolio’s total return by generating current income from our debt investments and current income and capital appreciation from our equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. We seek to achieve our investment objective through our LMM and Private Loan (as defined below) investment strategies. Our LMM investment strategy involves investments in companies that generally have annual revenues between $10 million and $150 million and our LMM portfolio investments generally range in size from $5 million to $100 million. Our private loan (“Private Loan”) investment strategy involves investments in companies that are generally consistent with the size of the companies in our LMM and Middle Market investment strategies, and our Private Loan investments generally range in size from $10 million to $100 million. Our Middle Market investment strategy involves investments in companies that are generally larger in size than our LMM companies, with annual revenues typically between $150 million and $1.5 billion, and our Middle Market investments generally range in size from $3 million to $25 million. We seek to fill the financing gap for LMM businesses, which, historically, have had limited access to financing from commercial banks and other traditional sources. The underserved nature of the LMM creates the opportunity for us to meet the financing needs of LMM companies while also negotiating favorable transaction terms and equity participation. Our ability to invest across a company’s capital structure, from secured loans to equity securities, allows us to offer portfolio companies a comprehensive suite of financing options, or a “one-stop” financing solution. Providing customized, “one-stop” financing solutions is important to LMM portfolio companies. We generally seek to partner directly with entrepreneurs, management teams and business owners in making our investments. Our LMM portfolio debt investments are generally secured by a first lien on the assets of the portfolio company and typically have a term of between five and seven years from the original investment date. Private Loan investments primarily consist of debt securities that have primarily been originated directly by us or, to a lesser extent, through our strategic relationships with other investment funds on a collaborative basis through investments that are often referred to in the debt markets as “club deals” because of the small lender group size. Our Private Loan investments are typically made to a company owned by or in the process of being acquired by a private equity sponsor. Private Loan investments are typically similar in size, structure, terms and conditions to investments we hold in our LMM portfolio and Middle Market portfolio. Our Private Loan portfolio debt investments are generally secured by a first priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date. We may also co-invest with the private equity sponsors in the equity securities of our Private Loan portfolio companies. Our Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of debt securities in privately held companies based in the United States that are generally larger in size than the companies included in our LMM portfolio and that were issued through a syndicated process. Our Middle Market portfolio debt investments are generally secured by a first priority lien on the assets of the portfolio company and typically have an expected duration of between three and seven years from the original investment date. Over the last few years, we have been de-emphasizing this strategy and expect to continue to do so in the future. Our other portfolio (“Other Portfolio”) investments primarily consist of investments that are not consistent with the typical profiles for our LMM, Private Loan or Middle Market portfolio investments, including investments which may be managed by third parties. In our Other Portfolio, we may incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds. Subject to changes in our cash and overall liquidity, our Investment Portfolio (as defined below) may also include short-term portfolio investments that are atypical of our LMM, Private Loan and Middle Market portfolio investments in that they are intended to be a short-term deployment of capital. These assets are typically expected to be liquidated in one year or less and are not expected to be a significant portion of the overall Investment Portfolio. The “Investment Portfolio,” as used herein, refers to all of our investments in LMM companies (including both our LMM and Private Loan portfolio investments) and investments in Middle Market companies (including both our Private Loan and Middle Market portfolio investments), Other Portfolio investments, short-term portfolio investments and our investment in the External Investment Manager. Our external asset management business is conducted through the External Investment Manager. The External Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. Our portfolio investments are generally made through MSCC, the Taxable Subsidiaries, the Funds and the Structured Subsidiaries. MSCC, the Taxable Subsidiaries, the Funds and the Structured Subsidiaries share the same investment strategies and criteria, although they are subject to different regulatory regimes. An investor’s return in MSCC will depend, in part, on the Taxable Subsidiaries’, the Funds’ and the Structured Subsidiaries’ investment returns as they are wholly-owned subsidiaries of MSCC. The level of new portfolio investment activity will fluctuate from period to period based upon our view of the current economic fundamentals, our ability to identify new investment opportunities that meet our investment criteria, and our ability to consummate the identified opportunities. The level of new investment activity, and associated interest and fee income, will directly impact future investment income. In addition, the level of dividends paid by portfolio companies and the portion of our portfolio debt investments on non-accrual status will directly impact future investment income. While we intend to grow our portfolio and our investment income over the long term, our growth and our operating results may be more limited during depressed economic periods. However, we intend to appropriately manage our cost structure and liquidity position based on applicable economic conditions and our investment outlook. The level of realized gains or losses and unrealized appreciation or depreciation on our investments will also fluctuate depending upon portfolio activity, economic conditions and the performance of our individual portfolio companies. The changes in realized gains and losses and unrealized appreciation or depreciation could have a material impact on our operating results. Because we are internally managed, we do not pay any external investment advisory fees, but instead directly incur the operating costs associated with employing investment and portfolio management professionals. We believe that our internally managed structure provides us with a better alignment of interests between our management team and our employees and our shareholders and a beneficial operating expense structure when compared to other publicly traded and privately held investment firms which are externally managed, and our internally managed structure allows us the opportunity to leverage our non-interest operating expenses as we grow our Investment Portfolio and our External Investment Manager’s asset management business (as defined below). The ratio of our total operating expenses, excluding interest expense, as a percentage of our quarterly average total assets was 1.3% and 1.4% for the trailing twelve months ended June 30, 2024 and 2023, respectively, and 1.3% for the year ended December 31, 2023. The ratio of our total operating expenses, including interest expense, as a percentage of our quarterly average total assets was 3.6% and 3.7% for the trailing twelve months ended June 30, 2024 and 2023, respectively, and 3.7% for the year ended December 31, 2023. Our ratio of expenses as a percentage of our average net asset value is described in greater detail in Note F – Financial Highlights to the consolidated financial statements included in Item 1. Consolidated Financial Statements of this Quarterly Report on Form 10-Q. The External Investment Manager serves as the investment adviser and administrator to MSC Income Fund, Inc. (“MSC Income”) pursuant to an Investment Advisory and Administrative Services Agreement entered into in October 2020 between the External Investment Manager and MSC Income (the “Advisory Agreement”). Under the Advisory Agreement, the External Investment Manager earns a 1.75% annual base management fee on MSC Income’s average total assets, an incentive fee equal to 20% of pre-investment fee net investment income above a specified investment return hurdle rate and a 20% incentive fee on cumulative net realized capital gains in exchange for providing advisory services to MSC Income. Additionally, the External Investment Manager has entered into investment management agreements with MS Private Loan Fund I, LP (the “Private Loan Fund”) and MS Private Loan Fund II, LP (the “Private Loan Fund II”), each a private investment fund with a strategy to co-invest with Main Street in Private Loan portfolio investments, pursuant to which the External Investment Manager provides investment advisory and management services to each fund in exchange for an asset-based fee and certain incentive fees. The External Investment Manager may also advise other clients, including funds and separately managed accounts, pursuant to advisory and services agreements with such clients in exchange for asset-based and incentive fees. The External Investment Manager earns management fees based on the assets of the funds and accounts under management and may earn incentive fees, or a carried interest, based on the performance of the funds and accounts managed. For the three months ended June 30, 2024 and 2023, the External Investment Manager earned $5.9 million and $5.5 million in base management fees, respectively, $4.1 million and $3.7 million in incentive fees, respectively, and $0.2 million of administrative service fee income for each of the three months ended June 30, 2024 and 2023. For the six months ended June 30, 2024 and 2023, the External Investment Manager earned $11.6 million and $11.0 million in base management fees, respectively, $8.0 million and $7.0 million in incentive fees, respectively, and $0.3 million of administrative service fee income for each of the six months ended June 30, 2024 and 2023. We have entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with MSC Income and its other clients. Through this agreement, we share employees with the External Investment Manager, including their related infrastructure, business relationships, management expertise and capital raising capabilities, and we allocate the related expenses to the External Investment Manager pursuant to the sharing agreement. Our total expenses for the three months ended June 30, 2024 and 2023 are net of expenses allocated to the External Investment Manager of $5.9 million and $5.7 million, respectively. Our total expenses for the six months ended June 30, 2024 and 2023 are net of expenses allocated to the External Investment Manager of $11.4 million and $10.7 million, respectively. The total contribution of the External Investment Manager to our net investment income consists of the combination of the expenses allocated to the External Investment Manager and the dividend income earned from the External Investment Manager. For the three months ended June 30, 2024 and 2023, dividends accrued by us from the External Investment Manager were $3.3 million and $2.9 million, respectively. For the three months ended June 30, 2024 and 2023, the total contribution of the External Investment Manager to our net investment income was $9.2 million and $8.5 million, respectively. For the six months ended June 30, 2024 and 2023, dividends accrued by us from the External Investment Manager were $6.3 million and $5.9 million, respectively. For the six months ended June 30, 2024 and 2023, the total contribution of the External Investment Manager to our net investment income was $17.8 million and $16.6 million, respectively. We have received an exemptive order from the SEC permitting co-investments among us, MSC Income and other funds and clients advised by the External Investment Manager in certain negotiated transactions where co-investing would otherwise be prohibited under the 1940 Act. We have made co-investments with, and in the future intend to continue to make co-investments with MSC Income, the Private Loan Fund, the Private Loan Fund II and other funds and clients advised by the External Investment Manager, in accordance with the conditions of the order. The order requires, among other things, that we and the External Investment Manager consider whether each such investment opportunity is appropriate for us and the External Investment Manager’s advised clients, as applicable, and if it is appropriate, to propose an allocation of the investment opportunity between such parties. Because the External Investment Manager may receive performance-based fee compensation from funds and clients advised by the External Investment Manager, this may provide the Company and the External Investment Manager an incentive to allocate opportunities to other participating funds and clients instead of us. However, both we and the External Investment Manager have policies and procedures in place to manage this conflict, including oversight by the independent members of our Board of Directors. In addition to the co-investment program described above, we also co-invest in syndicated deals and other transactions where price is the only negotiated point by us and our affiliates.
Risk Factors [Table Text Block]	Risk Factors You should carefully consider the risks described below and all other information contained in this Quarterly Report on Form 10-Q, including our interim consolidated financial statements and the related notes thereto, before making a decision to purchase our securities. The risks and uncertainties described below are not the only ones facing us. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may have a material adverse effect on our business, financial condition and/or operating results, as well as the market price of our securities. In addition to the other information set forth in this report, you should carefully consider the risk factors described in Item 1A. Risk Factors in our Annual Report on Form 10-K for the fiscal year ended December 31, 2023 that we filed with the SEC on February 23, 2024, which could materially affect our business, financial condition and/or operating results.
NAV Per Share	$ 29.80	$ 29.20	$ 27.69	$ 26.86
July 2026 Notes [Member]
Capital Stock, Long-Term Debt, and Other Securities [Abstract]
Long Term Debt, Title [Text Block]	July 2026 Notes
Long Term Debt, Principal	$ 500,000	$ 500,000
Long Term Debt, Structuring [Text Block]	In January 2021, Main Street issued $300.0 million in aggregate principal amount of 3.00% unsecured notes due July 14, 2026 (the “July 2026 Notes”) at an issue price of 99.004%. Subsequently, in October 2021, Main Street issued an additional $200.0 million aggregate principal amount of the July 2026 Notes at an issue price of 101.741%. The July 2026 Notes issued in October 2021 have identical terms as, and are a part of a single series with, the July 2026 Notes issued in January 2021. The July 2026 Notes are unsecured obligations and rank pari passu with Main Street’s current and future unsecured indebtedness. The July 2026 Notes may be redeemed in whole or in part at any time at Main Street’s option subject to certain make-whole provisions. The July 2026 Notes bear interest at a rate of 3.00% per year payable semiannually on January 14 and July 14 of each year.
March 2029 Notes [Member]
Capital Stock, Long-Term Debt, and Other Securities [Abstract]
Long Term Debt, Title [Text Block]	March 2029 Notes
Long Term Debt, Principal	$ 350,000
Long Term Debt, Structuring [Text Block]	In January 2024, Main Street issued $350.0 million in aggregate principal amount of 6.95% unsecured notes due March 1, 2029 (the “March 2029 Notes”) at an issue price of 99.865%. The March 2029 Notes are unsecured obligations and rank pari passu with Main Street’s current and future unsecured indebtedness. The March 2029 Notes may be redeemed in whole or in part at any time at Main Street’s option subject to certain make-whole provisions. The March 2029 Notes bear interest at a rate of 6.95% per year payable semiannually on March 1 and September 1 of each year.
June 2027 Notes [Member]
Capital Stock, Long-Term Debt, and Other Securities [Abstract]
Long Term Debt, Title [Text Block]	June 2027 Notes
Long Term Debt, Principal	$ 300,000
Long Term Debt, Structuring [Text Block]	In June 2024, Main Street issued $300.0 million in aggregate principal amount of 6.50% unsecured notes due June 4, 2027 (the “June 2027 Notes”) at an issue price of 99.793%. The June 2027 Notes are unsecured obligations and rank pari passu with Main Street’s current and future unsecured indebtedness. The June 2027 Notes may be redeemed in whole or in part at any time at Main Street’s option subject to certain make-whole provisions. The June 2027 Notes bear interest at a rate of 6.50% per year payable semiannually on June 4 and December 4 of each year.
SBIC Debentures [Member]
Capital Stock, Long-Term Debt, and Other Securities [Abstract]
Long Term Debt, Title [Text Block]	SBIC Debentures
Long Term Debt, Principal	$ 286,200	350,000
Long Term Debt, Structuring [Text Block]	Under existing SBIC regulations, SBA-approved SBICs under common control have the ability to issue debentures guaranteed by the SBA up to a regulatory maximum amount of $350.0 million. Main Street’s SBIC debentures payable, under existing SBA-approved commitments, were $286.2 million and $350.0 million as of June 30, 2024 and December 31, 2023, respectively. SBIC debentures provide for interest to be paid semiannually, with principal due at the applicable 10-year maturity date of each debenture. Main Street expects to maintain SBIC debentures under the SBIC program in the future, subject to periodic repayments and borrowings, in an amount up to the regulatory maximum amount for affiliated SBIC funds. On March 1, 2024, Main Street repaid $63.8 million of debentures that had reached maturity dates. The weighted-average annual interest rate on the SBIC debentures was 2.8% and 3.0% as of June 30, 2024 and December 31, 2023, respectively. The first principal maturity due under the existing SBIC debentures is in 2027, and the weighted-average remaining duration as of June 30, 2024 was 5.1 years. In accordance with SBIC regulations, the Funds are precluded from incurring additional non-SBIC debt without the prior approval of the SBA.
December 2025 Notes [Member]
Capital Stock, Long-Term Debt, and Other Securities [Abstract]
Long Term Debt, Title [Text Block]	December 2025 Notes
Long Term Debt, Principal	$ 150,000	150,000
Long Term Debt, Structuring [Text Block]	In December 2022, Main Street issued $100.0 million in aggregate principal amount of 7.84% Series A unsecured notes due December 23, 2025 (the “December 2025 Series A Notes”) at par. In February 2023, Main Street issued an additional $50.0 million in aggregate principal amount of 7.53% Series B unsecured notes due December 23, 2025 (the “December 2025 Series B Notes” and, together with the December 2025 Series A Notes, the “December 2025 Notes”), at par. The December 2025 Notes are unsecured obligations and rank pari passu with Main Street’s current and future unsecured indebtedness. The December 2025 Notes may be redeemed in whole or in part at any time at Main Street’s option at par plus accrued interest to the prepayment date, subject to certain make-whole provisions. The December 2025 Series A Notes and the December 2025 Series B Notes bear interest at a rate of 7.84% and 7.53% per year, respectively, payable semiannually on June 23 and December 23 of each year. In addition, Main Street is obligated to offer to repay the December 2025 Notes at par plus accrued and unpaid interest if certain change in control events occur. The December 2025 Notes will bear interest at an increased rate from the date that (i) the December 2025 Notes receive a below investment grade rating by a rating agency if there is one or two rating agencies providing ratings of the December 2025 Notes, or two-thirds of the rating agencies if there are three rating agencies who are rating the notes (a “Below Investment Grade Event”), or (ii) the ratio of the Company’s consolidated secured indebtedness (other than indebtedness of the Funds or any Structured Subsidiaries) to the value of its consolidated total assets is greater than 0.35 to 1.00 (a “Secured Debt Ratio Event”), to and until the date on which the Below Investment Grade Event and the Secured Debt Ratio Event are no longer continuing. The governing agreement for the December 2025 Notes contains customary terms and conditions for senior unsecured notes issued in a private placement, as well as customary events of default with customary cure and notice periods.
May 2024 Notes [Member]
Capital Stock, Long-Term Debt, and Other Securities [Abstract]
Long Term Debt, Principal		450,000
Corporate Facility [Member]
Capital Stock, Long-Term Debt, and Other Securities [Abstract]
Long Term Debt, Title [Text Block]	Corporate Facility
Long Term Debt, Principal	$ 465,000	200,000
Long Term Debt, Structuring [Text Block]	As of June 30, 2024, borrowings under the Corporate Facility bore interest, subject to Main Street’s election and resetting on a monthly basis on the first of each month, on a per annum basis at a rate equal to the applicable SOFR rate plus an applicable credit spread adjustment of 0.10% plus (i) 1.875% (or the applicable Prime rate plus 0.875%) as long as Main Street meets certain agreed upon excess collateral and maximum leverage requirements or (ii) 2.0% (or the applicable Prime Rate plus 1.0%) otherwise. Main Street pays unused commitment fees of 0.25% per annum on the unused lender commitments under the Corporate Facility. The Corporate Facility is secured by a first lien on the assets of MSCC and its subsidiaries, excluding the equity ownership or assets of the Funds and the External Investment Manager. In connection with the Corporate Facility, MSCC has made customary representations and warranties and is required to comply with various covenants, reporting requirements and other customary requirements for similar credit facilities.
SPV Facility [Member]
Capital Stock, Long-Term Debt, and Other Securities [Abstract]
Long Term Debt, Title [Text Block]	SPV Facility
Long Term Debt, Principal	$ 160,000	$ 160,000
Long Term Debt, Structuring [Text Block]	Main Street, through MSCC Funding I, LLC (“MSCC Funding”), a wholly-owned Structured Subsidiary that primarily holds debt investments, maintains the SPV Facility to finance its investment and operational activities. As of June 30, 2024, the SPV Facility included total commitments of $430.0 million from a diversified group of six lenders and contained an accordion feature, subject to the satisfaction of various conditions, that could bring total commitments and borrowing availability to up to $450.0 million. The revolving period under the SPV Facility expires in November 2025 and the SPV Facility is scheduled to mature in November 2027. Advances under the SPV Facility bear interest at a per annum rate equal to the one-month SOFR in effect, plus a 0.10% credit spread adjustment plus an applicable margin of 2.50% during the revolving period and 2.625% and 2.75% during the first and second years thereafter, respectively. MSCC Funding pays a commitment fee of 0.50% per annum on the unused lender commitments up to 35% of the total lender commitments and 0.75% per annum on the unused lender commitments greater than 35% of the total lender commitments. The SPV Facility is secured by a collateral loan on the assets of MSCC Funding and its subsidiaries. In connection with the SPV Facility, MSCC Funding has made customary representations and warranties and is required to comply with various covenants, reporting requirements and other customary requirements for similar credit facilities.

SUMMARY OF SIGNIFICANT ACCOUN_2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	6 Months Ended
	Jun. 30, 2024
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation Main Street’s consolidated financial statements are prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”). The Company is an investment company following accounting and reporting guidance in Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 946, Financial Services—Investment Companies (“ASC 946”). For each of the periods presented herein, Main Street’s consolidated financial statements include the accounts of MSCC and its consolidated subsidiaries. The “Investment Portfolio,” as used herein, refers to all of Main Street’s investments in LMM portfolio companies, investments in Private Loan portfolio companies, investments in Middle Market portfolio companies, Other Portfolio investments, short-term portfolio investments and the investment in the External Investment Manager (see Note C — Fair Value Hierarchy for Investments — Portfolio Composition — Investment Portfolio Composition for additional discussion of Main Street’s Investment Portfolio and definitions for the defined terms Private Loan and Other Portfolio). Main Street’s results of operations for the three and six months ended June 30, 2024 and 2023, cash flows for the six months ended June 30, 2024 and 2023, and financial position as of June 30, 2024 and December 31, 2023, are presented on a consolidated basis. The effects of all intercompany transactions between MSCC and its consolidated subsidiaries have been eliminated in consolidation. The accompanying unaudited consolidated financial statements of Main Street are presented in conformity with U.S. GAAP for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Articles 6, 10 and 12 of Regulation S-X. Accordingly, certain disclosures accompanying annual consolidated financial statements prepared in accordance with U.S. GAAP are omitted. The unaudited consolidated financial statements and notes should be read in conjunction with the audited consolidated financial statements and notes thereto for the year ended December 31, 2023. In the opinion of management, the unaudited consolidated financial results included herein contain all adjustments, consisting solely of normal recurring accruals, considered necessary for the fair presentation of financial statements for the interim periods included herein. The results of operations for the three and six months ended June 30, 2024 are not necessarily indicative of the operating results to be expected for the full year. Financial statements prepared on a U.S. GAAP basis require management to make estimates and assumptions that affect the amounts and disclosures reported in the consolidated financial statements and accompanying notes. Such estimates and assumptions could change in the future as more information becomes known, which could impact the amounts reported and disclosed herein.
Principles of Consolidation	Principles of Consolidation Under ASC 946, Main Street is precluded from consolidating other entities in which Main Street has equity investments, including those in which it has a controlling interest, unless the other entity is another investment company. An exception to this general principle in ASC 946 occurs if Main Street holds a controlling interest in an operating company that provides all or substantially all of its services directly to Main Street. Accordingly, as noted above, MSCC’s consolidated financial statements include the financial position and operating results for the Funds, the Taxable Subsidiaries and the Structured Subsidiaries. Main Street has determined that none of its portfolio investments qualify for this exception, including the investment in the External Investment Manager. Therefore, Main Street’s Investment Portfolio is carried on the Consolidated Balance Sheets at fair value, as discussed further in Note B.1. — Summary of Significant Accounting Policies — Valuation of the Investment Portfolio , with any adjustments to fair value recognized as “Net Unrealized Appreciation (Depreciation)” until the investment is realized, usually upon exit, resulting in any gain or loss being recognized as a “Net Realized Gain (Loss),” in both cases on the Consolidated Statements of Operations.
Portfolio Investment Classification and Valuation of the Investment Portfolio	Portfolio Investment Classification Main Street classifies its Investment Portfolio in accordance with the requirements of the 1940 Act. Under the 1940 Act, (a) “Control Investments” are defined as investments in which Main Street owns more than 25% of the voting securities or has rights to maintain greater than 50% of the board representation, (b) “Affiliate Investments” are defined as investments in which Main Street owns between 5% and 25% (inclusive) of the voting securities and does not have rights to maintain greater than 50% of the board representation and (c) “Non-Control/Non-Affiliate Investments” are defined as investments that are neither Control Investments nor Affiliate Investments. For purposes of determining the classification of its Investment Portfolio, Main Street has excluded consideration of any voting securities or board appointment rights held by third-party investment funds advised by the External Investment Manager. Valuation of the Investment Portfolio Main Street accounts for its Investment Portfolio at fair value. As a result, Main Street follows the provisions of ASC 820, Fair Value Measurements and Disclosures (“ASC 820”). ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value and enhances disclosure requirements for fair value measurements. ASC 820 requires Main Street to assume that the portfolio investment is to be sold in the principal market to independent market participants, which may be a hypothetical market. Market participants are defined as buyers and sellers in the principal market that are independent, knowledgeable and willing and able to transact. Main Street’s portfolio strategy calls for it to invest primarily in illiquid debt and equity securities issued by privately held, LMM companies and debt securities issued by Middle Market companies that are generally larger in size than the LMM companies and that can be more liquid than the debt securities issued by LMM companies. Main Street categorizes some of its investments in LMM companies and Middle Market companies as Private Loan portfolio investments, which are primarily debt securities in privately held companies that have primarily been originated directly by Main Street or, to a lesser extent, through its strategic relationships with other investment funds on a collaborative basis through investments that are often referred to in the debt markets as “club deals” because of the small lender group size. In both cases, Main Street’s Private Loan investments are typically made to a company owned by or in the process of being acquired by a private equity sponsor. Private Loan investments are made in companies that are consistent with the size of companies Main Street invests in through its LMM portfolio and Middle Market portfolio. Main Street’s portfolio also includes Other Portfolio investments which primarily consist of investments that are not consistent with the typical profiles for its LMM, Private Loan or Middle Market portfolio investments, including investments which may be managed by third parties. Main Street’s portfolio may also include short-term portfolio investments that are atypical of Main Street’s LMM, Private Loan and Middle Market portfolio investments in that they are intended to be a short-term deployment of capital and are more liquid than investments within the other portfolios. Main Street’s portfolio investments may be subject to restrictions on resale. LMM investments and Other Portfolio investments generally have no established trading market, while Private Loan investments may include investments which have no established market or have established markets that are not active. Middle Market and short-term portfolio investments generally have established markets that are not active. Main Street determines in good faith the fair value of its Investment Portfolio pursuant to a valuation policy in accordance with ASC 820, with such valuation process approved by its Board of Directors and in accordance with the 1940 Act. Main Street’s valuation policies and processes are intended to provide a consistent basis for determining the fair value of Main Street’s Investment Portfolio. For LMM portfolio investments, Main Street generally reviews external events, including private mergers, sales and acquisitions involving comparable companies, and includes these events in the valuation process by using an enterprise value waterfall methodology (“Waterfall”) for its LMM equity investments and an income approach using a yield-to-maturity model (“Yield-to-Maturity”) valuation method for its LMM debt investments. For Private Loan and Middle Market portfolio investments in debt securities for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value the investment in a current hypothetical sale using the Yield-to-Maturity valuation method. For Middle Market and short-term portfolio investments in debt securities for which it has determined that third-party quotes or other independent prices are available, Main Street primarily uses quoted prices in the valuation process. Main Street determines the appropriateness of the use of third-party broker quotes, if any, in determining fair value based on its understanding of the level of actual transactions used by the broker to develop the quote and whether the quote was an indicative price or binding offer, the depth and consistency of broker quotes and the correlation of changes in broker quotes with underlying performance of the portfolio company and other market indices. For its Other Portfolio equity investments, Main Street generally calculates the fair value of the investment primarily based on the net asset value (“NAV”) of the fund and adjusts the fair value for other factors deemed relevant that would affect the fair value of the investment. All of the valuation approaches for Main Street’s portfolio investments estimate the value of the investment as if Main Street were to sell, or exit, the investment as of the measurement date. These valuation approaches consider the value associated with Main Street’s ability to control the capital structure of the portfolio company, as well as the timing of a potential exit. For valuation purposes, “control” portfolio investments are composed of debt and equity securities in companies for which Main Street has a controlling interest in the equity ownership of the portfolio company or the ability to nominate a majority of the portfolio company’s board of directors. For valuation purposes, “non-control” portfolio investments are generally composed of debt and equity securities in companies for which Main Street does not have a controlling interest in the equity ownership of the portfolio company or the ability to nominate a majority of the portfolio company’s board of directors. Under the Waterfall valuation method, Main Street estimates the enterprise value of a portfolio company using a combination of market and income approaches or other appropriate valuation methods, such as considering recent transactions in the equity securities of the portfolio company or third-party valuations of the portfolio company, and then performs a Waterfall calculation by allocating the enterprise value over the portfolio company’s securities in order of their preference relative to one another. The enterprise value is the fair value at which an enterprise could be sold in a transaction between two willing parties, other than through a forced or liquidation sale. Typically, privately held companies are bought and sold based on multiples of earnings before interest, taxes, depreciation and amortization (“EBITDA”), cash flows, net income, revenues, or in limited cases, book value. There is no single methodology for estimating enterprise value. For any one portfolio company, enterprise value is generally described as a range of values from which a single estimate of enterprise value is derived. In estimating the enterprise value of a portfolio company, Main Street analyzes various factors including the portfolio company’s historical and projected financial results. Due to SEC deadlines for Main Street’s quarterly and annual financial reporting, the operating results of a portfolio company used in the current period valuation are generally the results from the period ended three months prior to such valuation date and may include unaudited, projected, budgeted or pro forma financial information and may require adjustments for non-recurring items or to normalize the operating results that may require significant judgment in determining. In addition, projecting future financial results requires significant judgment regarding future growth assumptions. In evaluating the operating results, Main Street also analyzes the impact of exposure to litigation, loss of customers or other contingencies. After determining the appropriate enterprise value, Main Street allocates the enterprise value to investments in order of the legal priority of the various components of the portfolio company’s capital structure. In applying the Waterfall valuation method, Main Street assumes the loans are paid-off at the principal amount in a change in control transaction and are not assumed by the buyer, which Main Street believes is consistent with its past transaction history and standard industry practices. Under the Yield-to-Maturity valuation method, Main Street also uses the income approach to determine the fair value of debt securities based on projections of the discounted future free cash flows that the debt security will likely generate, including analyzing the discounted cash flows of interest and principal amounts for the debt security, as set forth in the associated loan agreements, as well as the financial position and credit risk of the portfolio company. Main Street’s estimate of the expected repayment date of its debt securities is generally the maturity date of the instrument, as Main Street generally intends to hold its loans and debt securities to maturity. The Yield-to-Maturity analysis also considers changes in leverage levels, credit quality, portfolio company performance, changes in market-based interest rates and other factors. Main Street will generally use the value determined by the Yield-to-Maturity analysis as the fair value for that security; however, because of Main Street’s general intent to hold its loans to maturity, the fair value will not exceed the principal amount of the debt security valued using the Yield-to-Maturity valuation method. A change in the assumptions that Main Street uses to estimate the fair value of its debt securities using the Yield-to-Maturity valuation method could have a material impact on the determination of fair value. If there is deterioration in credit quality or if a debt security is in workout status, Main Street may consider other factors in determining the fair value of the debt security, including the value attributable to the debt security from the enterprise value of the portfolio company or the proceeds that would most likely be received in a liquidation analysis. Under the NAV valuation method, for an investment in an investment fund that does not have a readily determinable fair value, Main Street measures the fair value of the investment predominately based on the NAV of the investment fund as of the measurement date and adjusts the investment’s fair value for factors known to Main Street that would affect that fund’s NAV, including, but not limited to, fair values for individual investments held by the fund if Main Street holds the same investment or for a publicly traded investment. In addition, in determining the fair value of the investment, Main Street considers whether adjustments to the NAV are necessary in certain circumstances, based on the analysis of any restrictions on redemption of Main Street’s investment as of the measurement date, recent actual sales or redemptions of interests in the investment fund, and expected future cash flows available to equity holders, including the rate of return on those cash flows compared to an implied market return on equity required by market participants, or other uncertainties surrounding Main Street’s ability to realize the full NAV of its interests in the investment fund. Pursuant to its internal valuation process and the requirements under the 1940 Act, Main Street performs valuation procedures on each of its portfolio investments quarterly. In addition to its internal valuation process, in arriving at estimates of fair value for its investments in its LMM portfolio companies, Main Street, among other things, consults with a nationally recognized independent financial advisory services firm (the “Financial Advisory Firm”). The Financial Advisory Firm analyzes and provides observations, recommendations and an assurance certification regarding Main Street’s determinations of the fair value of its LMM portfolio company investments. The Financial Advisory Firm is generally consulted relative to Main Street’s investments in each LMM portfolio company at least once every calendar year, and for Main Street’s investments in new LMM portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, Main Street may determine that it is not cost-effective, and as a result is not in its stockholders’ best interest, to consult with the Financial Advisory Firm on its investments in one or more LMM portfolio companies. Such instances include, but are not limited to, situations where the fair value of Main Street’s investment in a LMM portfolio company is determined to be insignificant relative to the total Investment Portfolio. Main Street consulted with and received an assurance certification from the Financial Advisory Firm in arriving at its determination of fair value for its investments in a total of 18 LMM portfolio companies during each of the three months ended June 30, 2024 and 2023, representing 21% and 23% of the total LMM portfolio at fair value as of June 30, 2024 and 2023, respectively. A total of 70 LMM portfolio companies were reviewed and certified by the Financial Advisory Firm during the trailing twelve months ended June 30, 2024, representing 94% of the total LMM portfolio at fair value as of June 30, 2024. Excluding its investments in LMM portfolio companies that, as of June 30, 2024, had not been in the Investment Portfolio for at least twelve months subsequent to the initial investment or whose primary purpose is to own real estate for which a third-party appraisal is obtained on at least an annual basis, 99% of the LMM portfolio at fair value was reviewed and certified by the Financial Advisory Firm during the trailing twelve months ended June 30, 2024. For valuation purposes, the significant majority of Main Street’s Private Loan portfolio investments are non-control investments. For Private Loan portfolio investments for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value such Private Loan debt investments in a current hypothetical sale using the Yield-to-Maturity valuation method and such Private Loan equity investments in a current hypothetical sale using the Waterfall valuation method. In addition to its internal valuation process, in arriving at estimates of fair value for its investments in its Private Loan portfolio companies, Main Street, among other things, consults with the Financial Advisory Firm. The Financial Advisory Firm analyzes and provides observations and recommendations and an assurance certification regarding Main Street’s determinations of the fair value of its Private Loan portfolio company investments. The Financial Advisory Firm is generally consulted relative to Main Street’s investments in each Private Loan portfolio company at least once every calendar year, and for Main Street’s investments in new Private Loan portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, Main Street may determine that it is not cost-effective, and as a result is not in its stockholders’ best interest, to consult with the Financial Advisory Firm on its investments in one or more Private Loan portfolio companies. Such instances include, but are not limited to, situations where the fair value of Main Street’s investment in a Private Loan portfolio company is determined to be insignificant relative to the total Investment Portfolio. Main Street consulted with and received an assurance certification from the Financial Advisory Firm in arriving at its determination of fair value for its investments in a total of 19 and 15 Private Loan portfolio companies during the three months ended June 30, 2024 and 2023, respectively, representing 22% and 24% of the total Private Loan portfolio at fair value as of June 30, 2024 and 2023, respectively. A total of 60 Private Loan portfolio companies were reviewed and certified by the Financial Advisory Firm during the trailing twelve months ended June 30, 2024, representing 72% of the total Private Loan portfolio at fair value as of June 30, 2024. Excluding its investments in Private Loan portfolio companies that, as of June 30, 2024, had not been in the Investment Portfolio for at least twelve months subsequent to the initial investment and its investments in Private Loan portfolio companies that were not reviewed because the investment is valued based upon third-party quotes or other independent pricing, 95% of the Private Loan portfolio at fair value was reviewed and certified by the Financial Advisory Firm during the trailing twelve months ended June 30, 2024. For valuation purposes, all of Main Street’s Middle Market portfolio investments are non-control investments. To the extent sufficient observable inputs are available to determine fair value, Main Street uses observable inputs to determine the fair value of these investments through obtaining third-party quotes or other independent pricing. For Middle Market portfolio investments for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value such Middle Market debt investments in a current hypothetical sale using the Yield-to-Maturity valuation method and such Middle Market equity investments in a current hypothetical sale using the Waterfall valuation method. Main Street generally consults on a limited basis with the Financial Advisory Firm in connection with determining the fair value of its Middle Market portfolio investments due to the nature of these investments. The vast majority (98% as of both June 30, 2024 and December 31, 2023) of the Middle Market portfolio investments (i) are valued using third-party quotes or other independent pricing services or (ii) Main Street has consulted with and received an assurance certification from the Financial Advisory Firm within the last twelve months. For valuation purposes, Main Street’s short-term portfolio investments have historically been comprised of non-control investments. To the extent sufficient observable inputs are available to determine fair value, Main Street uses observable inputs to determine the fair value of these investments through obtaining third-party quotes or other independent pricing. Because any short-term portfolio investments are typically valued using third-party quotes or other independent pricing services, Main Street generally does not consult with any financial advisory services firms in connection with determining the fair value of its short-term portfolio investments. For valuation purposes, the majority of Main Street’s Other Portfolio investments are non-control investments. Main Street’s Other Portfolio investments comprised 3.8% and 3.3% of Main Street’s Investment Portfolio at fair value as of June 30, 2024 and December 31, 2023, respectively. Similar to the LMM investment portfolio, market quotations for Other Portfolio equity investments are generally not readily available. For its Other Portfolio equity investments, Main Street generally determines the fair value of these investments using the NAV valuation method. For valuation purposes, Main Street’s investment in the External Investment Manager is a control investment. Market quotations are not readily available for this investment, and as a result, Main Street determines the fair value of the External Investment Manager using the Waterfall valuation method under the market approach. In estimating the enterprise value, Main Street analyzes various factors, including the entity’s historical and projected financial results, as well as its size, marketability and performance relative to the population of market comparables, and the valuations for comparable publicly traded companies and private transactions involving comparable companies. This valuation approach estimates the value of the investment as if Main Street were to sell, or exit, the investment. In addition, Main Street considers its ability to control the capital structure of the company, as well as the timing of a potential exit, in connection with determining the fair value of the External Investment Manager. Main Street consults with and receives an assurance certification from the Financial Advisory Firm in arriving at its determination of fair value for its investment in the External Investment Adviser on a quarterly basis, including as of June 30, 2024 and December 31, 2023. Due to the inherent uncertainty in the valuation process, Main Street’s determination of fair value for its Investment Portfolio may differ materially from the values that would have been determined had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that may occur over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently assigned. Main Street determines the fair value of each individual investment and records changes in fair value as unrealized appreciation or depreciation. Main Street uses an internally developed portfolio investment rating system in connection with its investment oversight, portfolio management and analysis and investment valuation procedures for its LMM, Private Loan and Middle Market portfolio companies. This system takes into account both quantitative and qualitative factors of each LMM, Private Loan and Middle Market portfolio company. Rule 2a-5 under the 1940 Act permits a BDC’s board of directors to designate its executive officers or investment adviser as a valuation designee to determine the fair value for its investment portfolio, subject to the active oversight of the board. Main Street’s Board of Directors has approved policies and procedures pursuant to Rule 2a-5 (the “Valuation Procedures”) and has designated a group of its executive officers to serve as the Board of Directors’ valuation designee. Main Street believes its Investment Portfolio as of June 30, 2024 and December 31, 2023 approximates fair value as of those dates based on the markets in which it operates and other conditions in existence on those reporting dates.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the period. Actual results may differ from these estimates under different conditions or assumptions. Additionally, as explained in Note B.1. — Summary of Significant Accounting Policies — Valuation of the Investment Portfolio , the consolidated financial statements include investments in the Investment Portfolio whose values have been estimated by Main Street, pursuant to valuation policies and procedures approved and overseen by Main Street’s Board of Directors, in the absence of readily ascertainable market values. Because of the inherent uncertainty of the Investment Portfolio valuations, those estimated values may differ materially from the values that would have been determined had a ready market for the securities existed. Macroeconomic factors, including pandemics, risk of recession, inflation, supply chain constraints or disruptions, geopolitical disruptions and changing market index interest rates, and the related effect on the U.S. and global economies, have impacted, and may continue to impact, the businesses and operating results of certain of Main Street’s portfolio companies. As a result of these and other current effects of macroeconomic factors, as well as the uncertainty regarding the extent and duration of their impact, the valuation of Main Street’s Investment Portfolio has and may continue to experience increased volatility.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents consist of cash and highly liquid investments with an original maturity of three months or less at the date of purchase. Cash and cash equivalents are carried at cost, which approximates fair value. At June 30, 2024 and December 31, 2023, the Company had $6.6 million and $15.2 million, respectively, of cash equivalents invested in AAA-rated money market funds pending investment in the Company’s primary investment strategies. These highly liquid investments are included in the Consolidated Schedule of Investments.
Interest	Interest, Dividend and Fee Income Main Street records interest and dividend income on the accrual basis to the extent amounts are expected to be collected. Dividend income is recorded when dividends are declared by the portfolio company or at such other time that an obligation exists for the portfolio company to make a distribution. Main Street evaluates accrued interest and dividend income periodically for collectability. When a loan or debt security becomes 90 days or more past due, and if Main Street otherwise does not expect the debtor to be able to service its debt obligation, Main Street will generally place the loan or debt security on non-accrual status and cease recognizing interest income on that loan or debt security until the borrower has demonstrated the ability and intent to pay contractual amounts due. If a loan or debt security’s status significantly improves regarding the debtor’s ability to service the debt obligation, or if a loan or debt security is sold or written off, Main Street removes it from non-accrual status.
Dividend	Interest, Dividend and Fee Income Main Street records interest and dividend income on the accrual basis to the extent amounts are expected to be collected. Dividend income is recorded when dividends are declared by the portfolio company or at such other time that an obligation exists for the portfolio company to make a distribution. Main Street evaluates accrued interest and dividend income periodically for collectability. When a loan or debt security becomes 90 days or more past due, and if Main Street otherwise does not expect the debtor to be able to service its debt obligation, Main Street will generally place the loan or debt security on non-accrual status and cease recognizing interest income on that loan or debt security until the borrower has demonstrated the ability and intent to pay contractual amounts due. If a loan or debt security’s status significantly improves regarding the debtor’s ability to service the debt obligation, or if a loan or debt security is sold or written off, Main Street removes it from non-accrual status. Main Street holds certain debt and preferred equity instruments in its Investment Portfolio that contain PIK interest and cumulative dividend provisions. The PIK interest, computed at the contractual rate specified in each debt agreement, is periodically added to the principal balance of the debt and is recorded as interest income. Thus, the actual collection of this interest may be deferred until the time of debt principal repayment. Cumulative dividends are recorded as dividend income, and any dividends in arrears are added to the balance of the preferred equity investment. The actual collection of these dividends in arrears may be deferred until such time as the preferred equity is redeemed or sold. To maintain RIC tax treatment (as discussed in Note B.10. — Summary of Significant Accounting Policies — Income Taxes
Fee Income	Main Street may periodically provide services, including structuring and advisory services, to its portfolio companies or other third parties. For services that are separately identifiable and evidence exists to substantiate fair value, fee income is recognized as earned, which is generally when the investment or other applicable transaction closes. Fees received in connection with debt financing transactions for services that do not meet these criteria are treated as debt origination fees and are generally deferred and accreted into income over the life of the financing.
Deferred Financing Costs	Deferred Financing Costs Deferred financing costs include commitment fees and other direct costs related to Main Street’s multi-year revolving credit facility (the “Corporate Facility”) and special purpose vehicle revolving credit facility (the “SPV Facility” and, together with the Corporate Facility, the “Credit Facilities”) and its unsecured notes, as well as the commitment fees and leverage fees (3.4% of the total commitment and draw amounts, as applicable) on the SBIC debentures. See further discussion of Main Street’s debt in Note E — Debt . Deferred financing costs in connection with the Credit Facilities are capitalized as an asset. Deferred financing costs in connection with all other debt arrangements are a direct deduction from the principal amount outstanding.
Equity Offering Costs	Equity Offering Costs The Company’s offering costs are charged against the proceeds from equity offerings when the proceeds are received.
Unearned Income—Debt Origination Fees and Original Issue Discount and Discounts / Premiums to Par Value	Unearned Income—Debt Origination Fees and Original Issue Discount and Discounts / Premiums to Par Value Main Street capitalizes debt origination fees received in connection with financings and reflects such fees as unearned income netted against the applicable debt investments. The unearned income from the fees is accreted into income over the life of the financing. In connection with its portfolio debt investments, Main Street sometimes receives nominal cost warrants or warrants with an exercise price below the fair value of the underlying equity (together, “nominal cost equity”) that are valued as part of the negotiation process with the particular portfolio company. When Main Street receives nominal cost equity, it allocates its cost basis in its investment between its debt security and its nominal cost equity at the time of origination based on amounts negotiated with the particular portfolio company. The allocated amounts are based upon the fair value of the nominal cost equity, which is then used to determine the allocation of cost to the debt security. Any discount recorded on a debt investment resulting from this allocation is reflected as unearned income, which is netted against the applicable debt investment, and accreted into interest income over the life of the debt investment. The actual collection of this interest is deferred until the time of debt principal repayment. Main Street may also purchase debt securities at a discount or at a premium to the par value of the debt security. In the case of a purchase at a discount, Main Street records the investment at the par value of the debt security net of the discount, and the discount is accreted into interest income over the life of the debt investment. In the case of a purchase at a premium, Main Street records the investment at the par value of the debt security plus the premium, and the premium is amortized as a reduction to interest income over the life of the debt investment.
Share-Based Compensation	Share-Based Compensation Main Street accounts for its share-based compensation plans using the fair value method, as prescribed by ASC 718, Compensation—Stock Compensation. Accordingly, for restricted stock awards, Main Street measures the grant date fair value based upon the market price of its common stock on the date of the grant and amortizes the fair value of the awards as share-based compensation expense over the requisite service period, which is generally the vesting term. Main Street recognizes all excess tax benefits and tax deficiencies associated with share-based compensation (including tax benefits of dividends on share-based payment awards) as income tax expense or benefit in the income statement and does not delay recognition of a tax benefit until the tax benefit is realized through a reduction to taxes payable. As such, the tax effects of exercised or vested awards are treated as discrete items in the reporting period in which they occur. Additionally, Main Street has elected to account for forfeitures as they occur.
Deferred Compensation Plan	Deferred Compensation Plan The Main Street Capital Corporation Deferred Compensation Plan (the “Deferred Compensation Plan”) allows directors and certain employees to defer receipt of some or all of their cash compensation or directors’ fees in accordance with plan terms. Deferred Compensation Plan participants elect one or more investment options, including phantom Main Street stock units, interests in affiliated funds and various mutual funds, where their deferred amounts are notionally invested, and Main Street invests the deferred amounts through a trust (except for phantom Main Street stock units), pending distribution. Compensation deferred under the Deferred Compensation Plan is recognized on the same basis as such compensation would have been recognized if not deferred. The appreciation (depreciation) in the fair value of deferred compensation plan assets is reflected in Main Street's Consolidated Statements of Operations as unrealized appreciation (depreciation), with the recognition of a corresponding and offsetting deferred compensation expense or (benefit), respectively. Deferred compensation expense or (benefit) does not result in a net cash impact to Main Street upon settlement. Investments in the trust are recognized on the Consolidated Balance Sheets as an asset of Main Street (other assets) and as a deferred compensation liability (other liabilities). Phantom Main Street stock units under the Deferred Compensation Plan are not issued shares of Main Street common stock and are not included as outstanding on the Consolidated Statements of Changes in Net Assets until such shares are actually distributed to the participant, but the related phantom stock units are included in weighted-average shares outstanding with the related dollar amount of the deferral included in total expenses in Main Street’s Consolidated Statements of Operations as the deferred fees represented by such phantom stock units are earned over the service period. Additional phantom stock units from dividends on phantom stock units are included in the Consolidated Statements of Changes in Net Assets as an increase to dividends to stockholders offset by a corresponding increase to additional paid-in capital.
Income Taxes	Income Taxes MSCC has elected to be treated for U.S. federal income tax purposes as a RIC. MSCC’s taxable income includes the taxable income generated by MSCC and certain of its subsidiaries, including the Funds and Structured Subsidiaries, which are treated as disregarded entities for tax purposes. As a RIC, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that MSCC distributes to its stockholders. MSCC must generally distribute at least 90% of its “investment company taxable income” (which is generally its net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses) and 90% of its tax-exempt income to maintain its RIC status (pass-through tax treatment for amounts distributed). As part of maintaining RIC status, undistributed taxable income (subject to a 4% non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to twelve months subsequent to the end of that fiscal year, provided such dividends are declared on or prior to the later of (i) the filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close of the year in which such taxable income was generated. The Taxable Subsidiaries primarily hold certain equity investments for Main Street. The Taxable Subsidiaries permit Main Street to hold equity investments in portfolio companies which are “pass-through” entities for tax purposes and to continue to comply with the “source-of-income” requirements contained in the RIC tax provisions of the Code. The Taxable Subsidiaries are consolidated with Main Street for U.S. GAAP financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries are included in Main Street’s consolidated financial statements as portfolio investments and recorded at fair value. The Taxable Subsidiaries are not consolidated with MSCC for income tax purposes and may generate income tax expense, or benefit, and tax assets and liabilities, as a result of their ownership of certain portfolio investments. The taxable income, or loss, of the Taxable Subsidiaries may differ from their book income, or loss, due to temporary book and tax timing differences and permanent differences. The Taxable Subsidiaries are each taxed at corporate income tax rates based on their taxable income. The income tax expense, or benefit, if any, and the related tax assets and liabilities, of the Taxable Subsidiaries are reflected in Main Street’s consolidated financial statements. The External Investment Manager is an indirect wholly-owned subsidiary of MSCC owned through a Taxable Subsidiary and is a disregarded entity for tax purposes. The External Investment Manager has entered into a tax sharing agreement with its Taxable Subsidiary owner. Since the External Investment Manager is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC’s consolidated financial statements, and as a result of the tax sharing agreement with its Taxable Subsidiary owner, for its stand-alone financial reporting purposes the External Investment Manager is treated as if it is taxed at corporate income tax rates based on its taxable income and, as a result of its activities, may generate income tax expense or benefit. The income tax expense, or benefit, if any, and the related tax assets and liabilities, of the External Investment Manager are reflected in the External Investment Manager’s separate financial statements. The Taxable Subsidiaries and the External Investment Manager use the liability method in accounting for income taxes. Deferred tax assets and liabilities are recorded for temporary differences between the tax basis of assets and liabilities and their reported amounts in the consolidated financial statements, using statutory tax rates in effect for the year in which the temporary differences are expected to reverse. A valuation allowance is provided, if necessary, against deferred tax assets when it is more likely than not that some portion or all of the deferred tax asset will not be realized. Main Street’s net assets as included on the Consolidated Balance Sheets and Consolidated Statements of Changes in Net Assets include an adjustment to classification as a result of permanent book-to-tax differences, which include differences in the book and tax treatment of income and expenses. Taxable income generally differs from net income for financial reporting purposes due to temporary and permanent differences in the recognition of income and expenses. Taxable income generally excludes net unrealized appreciation or depreciation, as investment gains or losses are not included in taxable income until they are realized.
Net Realized Gains or Losses and Net Unrealized Appreciation or Depreciation	Net Realized Gains or Losses and Net Unrealized Appreciation or Depreciation Realized gains or losses are measured by the difference between the net proceeds from the sale or redemption of an investment or a financial instrument and the cost basis of the investment or financial instrument, without regard to unrealized appreciation or depreciation previously recognized, and includes investments written-off during the period net of recoveries and realized gains or losses from in-kind redemptions. Net unrealized appreciation or depreciation reflects the net change in the fair value of the Investment Portfolio and financial instruments and the reclassification of any prior period unrealized appreciation or depreciation on exited investments and financial instruments to realized gains or losses.
Fair Value of Financial Instruments	Fair Value of Financial Instruments Fair value estimates are made at discrete points in time based on relevant information. These estimates may be subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Main Street believes that the carrying amounts of its financial instruments, consisting of cash and cash equivalents, receivables, payables and other liabilities approximate the fair values of such items due to the short-term nature of these instruments. Main Street’s debt instruments, including all revolving and term debt and secured and unsecured debt, are accounted for on a historical cost basis as applicable under U.S. GAAP. As also required under U.S. GAAP, Main Street discloses the estimated fair value of its debt obligations in Note E — Debt. To estimate the fair value of Main Street’s multiple tranches of unsecured debt instruments as disclosed in Note E — Debt , Main Street uses quoted market prices. For the estimated fair value of Main Street’s SBIC debentures, Main Street uses the Yield-to-Maturity valuation method based on projections of the discounted future free cash flows that the debt security will likely generate, including both the discounted cash flows of the associated interest and principal amounts for the debt security. The inputs used to value Main Street’s debt instruments for purposes of the fair value estimate disclosures in Note E — Debt are considered to be Level 2 according to the ASC 820 fair value hierarchy.
Earnings per Share	Earnings per Share Basic and diluted per share calculations are computed utilizing the weighted-average number of shares of common stock outstanding for the period. In accordance with ASC 260, Earnings Per Share , the unvested shares of restricted stock awarded pursuant to Main Street’s equity compensation plans are participating securities and, therefore, are included in the basic earnings per share calculation. As a result, for all periods presented, there is no difference between diluted earnings per share and basic earnings per share amounts.
Recently Issued or Adopted Accounting Standards	Recently Issued or Adopted Accounting Standards In November 2022, the FASB issued ASU 2022-06, Reference rate reform (Topic 848) — Deferral of the Sunset Date of Topic 848 , which deferred the sunset date of Topic 848 from December 31, 2022 to December 31, 2024 after which entities will no longer be permitted to apply the relief in Topic 848. The Company utilized the optional expedients and exceptions provided by ASU 2020-04 and extended by ASU 2022-06 during the year ended December 31, 2023, the effect of which was not material to the consolidated financial statements and the notes thereto. For the current year, the Company will no longer utilize the optional expedients provided by ASU 2020-04, as LIBOR is no longer referenced in any of its contracts. ASU 2022-06 did not have a material impact on the consolidated financial statements and the notes thereto. In December 2023, the FASB issued ASU 2023-09, Improvements to Income Tax Disclosures . The amendments in this update require more disaggregated information on income taxes paid. ASU 2023-09 is effective for years beginning after December 15, 2024. Early adoption is permitted; however, the Company has not elected to adopt this provision as of the date of the financial statements contained in this report. The Company is still assessing the impact of the new guidance. However, it does not expect ASU 2023-09 to have a material impact on the consolidated financial statements and the notes thereto. From time to time, new accounting pronouncements are issued by the FASB or other standards-setting bodies that are adopted by the Company as of the specified effective date. The Company believes that the impact of recently issued standards and any that are not yet effective will not have a material impact on its consolidated financial statements upon adoption.
Fair Value Measurement	ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value, and enhances disclosure requirements for fair value measurements. Main Street accounts for its investments at fair value. Fair Value Hierarchy In accordance with ASC 820, Main Street has categorized its investments based on the priority of the inputs to the valuation technique into a three-level fair value hierarchy. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical investments (Level 1) and the lowest priority to unobservable inputs (Level 3). Investments recorded on Main Street’s Consolidated Balance Sheets are categorized based on the inputs to the valuation techniques as follows: Level 1—Investments whose values are based on unadjusted quoted prices for identical assets in an active market that Main Street has the ability to access (examples include investments in active exchange-traded equity securities and investments in most U.S. government and agency securities). Level 2—Investments whose values are based on quoted prices in markets that are not active or model inputs that are observable either directly or indirectly for substantially the full term of the investment. Level 2 inputs include the following: • Quoted prices for similar assets in active markets (for example, investments in restricted stock); • Quoted prices for identical or similar assets in non-active markets (for example, investments in thinly traded public companies); • Pricing models whose inputs are observable for substantially the full term of the investment (for example, market interest rate indices); and • Pricing models whose inputs are derived principally from, or corroborated by, observable market data through correlation or other means for substantially the full term of the investment. Level 3—Investments whose values are based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement (for example, investments in illiquid securities issued by privately held companies). These inputs reflect management’s own assumptions about the assumptions a market participant would use in pricing the investment. As required by ASC 820, when the inputs used to measure fair value fall within different levels of the hierarchy, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement in its entirety. For example, a Level 3 fair value measurement may include inputs that are observable (Levels 1 and 2) and unobservable (Level 3). Therefore, unrealized appreciation and depreciation related to such investments categorized within the Level 3 tables below may include changes in fair value that are attributable to both observable inputs (Levels 1 and 2) and unobservable inputs (Level 3). As of June 30, 2024 and December 31, 2023, all of Main Street’s LMM portfolio investments consisted of illiquid securities issued by privately held companies and the fair value determination for these investments primarily consisted of unobservable inputs. As a result, all of Main Street’s LMM portfolio investments were categorized as Level 3 as of June 30, 2024 and December 31, 2023. As of June 30, 2024 and December 31, 2023, Main Street’s Private Loan portfolio investments primarily consisted of investments in secured debt investments. The fair value determination for these investments consisted of a combination of observable inputs in non-active markets for which sufficient observable inputs were not available to determine the fair value of these investments and unobservable inputs. As a result, all of Main Street’s Private Loan portfolio investments were categorized as Level 3 as of June 30, 2024 and December 31, 2023. As of June 30, 2024 and December 31, 2023, Main Street’s Middle Market portfolio investments consisted primarily of investments in secured and unsecured debt investments and independently rated debt investments. The fair value determination for these investments consisted of a combination of observable inputs in non-active markets for which sufficient observable inputs were not available to determine the fair value of these investments and unobservable inputs. As a result, all of Main Street’s Middle Market portfolio investments were categorized as Level 3 as of June 30, 2024 and December 31, 2023. As of June 30, 2024 and December 31, 2023, Main Street’s Other Portfolio investments consisted of illiquid securities issued by privately held entities and the fair value determination for these investments primarily consisted of unobservable inputs. As a result, all of Main Street’s Other Portfolio investments were categorized as Level 3 as of June 30, 2024 and December 31, 2023. As of June 30, 2024 and December 31, 2023, Main Street did not hold any short-term portfolio investments. As of June 30, 2024 and December 31, 2023, all money market funds included in cash and cash equivalents were valued using Level 1 inputs. The fair value determination of each portfolio investment categorized as Level 3 required one or more of the following unobservable inputs: • Financial information obtained from each portfolio company, including unaudited statements of operations and balance sheets for the most recent period available as compared to budgeted numbers; • Current and projected financial condition of the portfolio company; • Current and projected ability of the portfolio company to service its debt obligations; • Type and amount of collateral, if any, underlying the investment; • Current financial ratios (e.g., fixed charge coverage ratio, interest coverage ratio and net debt/EBITDA ratio) applicable to the investment; • Current liquidity of the investment and related financial ratios (e.g., current ratio and quick ratio); • Pending debt or capital restructuring of the portfolio company; • Projected operating results of the portfolio company; • Current information regarding any offers to purchase the investment; • Current ability of the portfolio company to raise any additional financing as needed; • Changes in the economic environment which may have a material impact on the operating results of the portfolio company; • Internal occurrences that may have an impact (both positive and negative) on the operating performance of the portfolio company; • Qualitative assessment of key management; • Contractual rights, obligations or restrictions associated with the investment; and • Other factors deemed relevant. The use of significant unobservable inputs creates uncertainty in the measurement of fair value as of the reporting date. The significant unobservable inputs used in the fair value measurement of Main Street’s LMM equity securities, which are generally valued through an average of the discounted cash flow technique and the market comparable/enterprise value technique (unless one of these approaches is determined to not be appropriate), are (i) EBITDA multiples and (ii) the weighted-average cost of capital (“WACC”). Significant increases (decreases) in EBITDA multiple inputs in isolation would result in a significantly higher (lower) fair value measurement. On the contrary, significant increases (decreases) in WACC inputs in isolation would result in a significantly lower (higher) fair value measurement. The significant unobservable inputs used in the fair value measurement of Main Street’s LMM, Private Loan and Middle Market debt securities are (i) risk adjusted discount rates used in the Yield-to-Maturity valuation technique (see Note B.1. — Summary of Significant Accounting Policies — Valuation of the Investment Portfolio

SUMMARY OF SIGNIFICANT ACCOUN_3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	6 Months Ended
	Jun. 30, 2024
Accounting Policies [Abstract]
Schedule of Investment Income	A presentation of total investment income Main Street received from its Investment Portfolio in each of the periods presented is as follows: Three Months Ended Six Months Ended 2024 2023 2024 2023 (dollars in thousands) Interest, fee and dividend income: Interest income $ 100,031 $ 97,273 $ 200,136 $ 190,666 Dividend income 26,688 25,599 49,479 49,821 Fee income 5,435 4,711 14,144 7,351 Total interest, fee and dividend income $ 132,154 $ 127,583 $ 263,759 $ 247,838

FAIR VALUE HIERARCHY FOR INVE_2

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION (Tables)	6 Months Ended
	Jun. 30, 2024
Fair Value Disclosures [Abstract]
Schedule of Fair Value Measurement Inputs and Valuation Techniques	The following tables provide a summary of the significant unobservable inputs used to fair value Main Street’s Level 3 portfolio investments as of June 30, 2024 and December 31, 2023: Type of Fair Value as of June 30, 2024 (in thousands) Valuation Technique Significant Unobservable Inputs Range (4) Weighted Average (4) Median (4) Equity investments $ 1,498,912 Discounted cash flow WACC 9.2% - 22.9% 14.2 % 15.1 % Market comparable / Enterprise value EBITDA multiple (1) (3) 4.5x - 8.9x (2) 7.1x 6.3x Debt investments $ 3,103,832 Discounted cash flow Risk adjusted discount factor (5) 9.6% - 18.4% (2) 12.9 % 13.0 % Expected principal recovery percentage 0.0% - 100.0% 99.4 % 100.0 % Debt investments $ 134,767 Market approach Third-party quote 40.8 - 101.0 92.7 97.9 Total Level 3 investments $ 4,737,511 ____________________ (1) EBITDA may include proforma adjustments and/or other addbacks based on specific circumstances related to each investment. (2) Range excludes outliers that are greater than one standard deviation from the mean. Including these outliers, the range for EBITDA multiple is 2.0x - 15.7x and the range for risk adjusted discount factor is 5.0% - 31.7%. (3) The fair value of the equity investment in the External Investment Manager is based on a fee multiple of 7.1x. The fair value determination is based on a discounted, blended multiple based on the multiples for similar businesses in active markets and actual multiples used in private transactions. (4) Does not include investments for which the valuation technique does not include the use of the applicable fair value input. (5) Discount rate includes the effect of the standard SOFR base rate, as applicable. Type of Investment Fair Value as of December 31, 2023 (in thousands) Valuation Technique Significant Unobservable Inputs Range (4) Weighted Average (4) Median (4) Equity investments $ 1,402,354 Discounted cash flow WACC 9.7% - 22.7% 14.5 % 15.5 % Market comparable / Enterprise value EBITDA multiple (1) (3) 4.8x - 8.9x (2) 7.1x 6.4x Debt investments $ 2,720,425 Discounted cash flow Risk adjusted discount factor (5) 9.8% - 18.0% (2) 12.9 % 13.0 % Expected principal recovery percentage 0.0% - 100.0% 99.7 % 100.0 % Debt investments $ 163,492 Market approach Third-party quote 3.0 - 100.0 89.8 92.4 Total Level 3 investments $ 4,286,271 ____________________ (1) EBITDA may include proforma adjustments and/or other addbacks based on specific circumstances related to each investment. (2) Range excludes outliers that are greater than one standard deviation from the mean. Including these outliers, the range for EBITDA multiple is 2.0x - 15.7x and the range for risk adjusted discount factor is 7.0% - 31.6%. (3) The fair value of the equity investment in the External Investment Manager is based on a fee multiple of 7.2x. The fair value determination is based on a discounted, blended multiple based on the multiples for similar businesses in active markets and actual multiples used in private transactions. (4) Does not include investments for which the valuation technique does not include the use of the applicable fair value input. (5) Discount rate includes the effect of the standard SOFR base rate, as applicable.
Schedule of Changes in Fair Value of Main Street’s Level 3 Portfolio Investments	The following tables provide a summary of changes in fair value of Main Street’s Level 3 portfolio investments for the six months ended June 30, 2024 and 2023 (amounts in thousands): Type of Investment Fair Value as of December 31, 2023 Transfers Into Level 3 Hierarchy Redemptions/ Repayments New Investments Net Changes from Unrealized to Realized Net Unrealized Appreciation (Depreciation) Other(1) Fair Value as of June 30, 2024 Debt $ 2,883,917 $ — $ (406,233) $ 753,750 $ 7,468 $ (19,162) $ 18,859 $ 3,238,599 Equity 1,395,744 — (28,445) 65,122 (960) 75,391 (18,859) 1,487,993 Equity Warrant 6,610 — — 3,920 — 389 — 10,919 $ 4,286,271 $ — $ (434,678) $ 822,792 $ 6,508 $ 56,618 $ — $ 4,737,511 ____________________ (1) Includes the impact of non-cash conversions. These transactions represent non-cash investing activities. See additional cash flow information in the Consolidated Statements of Cash Flows. Type of Investment Fair Value as of December 31, 2022 Transfers Into Level 3 Hierarchy Redemptions/ Repayments New Investments Net Changes from Unrealized to Realized Net Unrealized Appreciation (Depreciation) Other(1) Fair Value as of June 30, 2023 Debt $ 2,928,196 $ — $ (421,050) $ 376,859 $ 100,164 $ (23,390) $ (29,746) $ 2,931,033 Equity 1,166,643 — (35,199) 48,210 4,126 56,358 32,322 1,272,460 Equity Warrant 5,434 — — 2,091 — 2,101 (2,576) 7,050 $ 4,100,273 $ — $ (456,249) $ 427,160 $ 104,290 $ 35,069 $ — $ 4,210,543 ____________________ (1) Includes the impact of non-cash conversions. These transactions represent non-cash investing activities. See additional cash flow information in the Consolidated Statements of Cash Flows.
Schedule of Portfolio Investments by Level in the Fair Value Hierarchy	At June 30, 2024 and December 31, 2023, Main Street’s investments at fair value were categorized as follows in the fair value hierarchy for ASC 820 purposes: Fair Value Measurements (in thousands) At June 30, 2024 Fair Value Quoted Prices in Significant Other Significant LMM portfolio investments $ 2,439,993 $ — $ — $ 2,439,993 Private Loan portfolio investments 1,747,502 — — 1,747,502 Middle Market portfolio investments 183,965 — — 183,965 Other Portfolio investments 179,491 — — 179,491 External Investment Manager 186,560 — — 186,560 Total investments $ 4,737,511 $ — $ — $ 4,737,511 Fair Value Measurements (in thousands) At December 31, 2023 Fair Value Quoted Prices in Significant Other Significant LMM portfolio investments $ 2,273,000 $ — $ — $ 2,273,000 Private Loan portfolio investments 1,453,549 — — 1,453,549 Middle Market portfolio investments 243,695 — — 243,695 Other Portfolio investments 141,964 — — 141,964 External Investment Manager 174,063 — — 174,063 Total investments $ 4,286,271 $ — $ — $ 4,286,271
Schedule of Investment Holdings	The following tables provide a summary of Main Street’s investments in the LMM, Private Loan and Middle Market portfolios as of June 30, 2024 and December 31, 2023 (this information excludes Other Portfolio investments and the External Investment Manager, which are discussed further below). As of June 30, 2024 LMM (a) Private Loan Middle Market (dollars in millions) Number of portfolio companies 83 92 19 Fair value $ 2,440.0 $ 1,747.5 $ 184.0 Cost $ 1,920.9 $ 1,768.0 $ 220.6 Debt investments as a % of portfolio (at cost) 72.6 % 95.4 % 88.3 % Equity investments as a % of portfolio (at cost) 27.4 % 4.6 % 11.7 % % of debt investments at cost secured by first priority lien 99.2 % 99.9 % 98.6 % Weighted-average annual effective yield (b) 13.0 % 12.8 % 13.0 % Average EBITDA (c) $ 9.3 $ 32.3 $ 57.7 ____________________ (a) At June 30, 2024, Main Street had equity ownership in all of its LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was 39%. (b) The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of June 30, 2024, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. The weighted-average annual effective yield on Main Street’s debt portfolio as of June 30, 2024 including debt investments on non-accrual status was 12.5% for its LMM portfolio, 12.4% for its Private Loan portfolio and 11.0% for its Middle Market portfolio. The weighted-average annual effective yield is not reflective of what an investor in shares of Main Street’s common stock will realize on its investment because it does not reflect changes in the market value of Main Street’s stock, Main Street’s utilization of debt capital in its capital structure, Main Street’s expenses or any sales load paid by an investor. (c) The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Private Loan and Middle Market portfolios. These calculations exclude certain portfolio companies, including four LMM portfolio companies, four Private Loan portfolio companies and three Middle Market portfolio companies, as EBITDA is not a meaningful valuation metric for Main Street’s investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate. As of December 31, 2023 LMM (a) Private Loan Middle Market (dollars in millions) Number of portfolio companies 80 87 23 Fair value $ 2,273.0 $ 1,453.5 $ 243.7 Cost $ 1,782.9 $ 1,470.1 $ 294.4 Debt investments as a % of portfolio (at cost) 72.0 % 94.7 % 91.4 % Equity investments as a % of portfolio (at cost) 28.0 % 5.3 % 8.6 % % of debt investments at cost secured by first priority lien 99.2 % 100.0 % 99.1 % Weighted-average annual effective yield (b) 13.0 % 12.9 % 12.5 % Average EBITDA (c) $ 8.2 $ 27.2 $ 64.2 ____________________ (a) At December 31, 2023, Main Street had equity ownership in all of its LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was 40%. (b) The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2023, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. The weighted-average annual effective yield on Main Street’s debt portfolio as of December 31, 2023 including debt investments on non-accrual status was 12.9% for its LMM portfolio, 12.5% for its Private Loan portfolio and 10.8% for its Middle Market portfolio. The weighted-average annual effective yield is not reflective of what an investor in shares of Main Street’s common stock will realize on its investment because it does not reflect changes in the market value of Main Street’s stock, Main Street’s utilization of debt capital in its capital structure, Main Street’s expenses or any sales load paid by an investor. (c) The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Private Loan and Middle Market portfolios. These calculations exclude certain portfolio companies, including two LMM portfolio companies and two Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for Main Street’s investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate. The following tables summarize the composition of Main Street’s total combined LMM, Private Loan and Middle Market portfolio investments at cost and fair value by type of investment as a percentage of the total combined LMM, Private Loan and Middle Market portfolio investments, as of June 30, 2024 and December 31, 2023 (this information excludes Other Portfolio investments and the External Investment Manager, which are discussed above). Cost: June 30, 2024 December 31, 2023 First lien debt 83.5 % 82.7 % Equity 15.9 16.8 Second lien debt 0.1 0.1 Equity warrants 0.3 0.2 Other 0.2 0.2 100.0 % 100.0 % Fair Value: June 30, 2024 December 31, 2023 First lien debt 72.4 % 71.6 % Equity 27.0 27.8 Second lien debt 0.2 0.2 Equity warrants 0.2 0.2 Other 0.2 0.2 100.0 % 100.0 % The following tables summarize the composition of Main Street’s total combined LMM, Private Loan and Middle Market portfolio investments by geographic region of the United States and other countries at cost and fair value as a percentage of the total combined LMM, Private Loan and Middle Market portfolio investments, as of June 30, 2024 and December 31, 2023 (this information excludes Other Portfolio investments and the External Investment Manager). The geographic composition is determined by the location of the corporate headquarters of the portfolio company. Cost: June 30, 2024 December 31, 2023 West 24.4 % 25.8 % Northeast 22.6 22.3 Midwest 21.0 17.0 Southwest 16.3 19.7 Southeast 13.9 13.1 Canada 0.3 0.4 Other Non-United States 1.5 1.7 100.0 % 100.0 % Fair Value: June 30, 2024 December 31, 2023 West 23.7 % 25.4 % Midwest 21.7 18.1 Northeast 21.7 21.3 Southwest 19.3 22.0 Southeast 11.9 11.3 Canada 0.3 0.3 Other Non-United States 1.4 1.6 100.0 % 100.0 % Main Street’s LMM, Private Loan and Middle Market portfolio investments are in companies conducting business in a variety of industries. The following tables summarize the composition of Main Street’s total combined LMM, Private Loan and Middle Market portfolio investments by industry at cost and fair value as of June 30, 2024 and December 31, 2023 (this information excludes Other Portfolio investments and the External Investment Manager). Cost: June 30, 2024 December 31, 2023 Professional Services 7.3 % 6.0 % Machinery 6.9 7.7 Internet Software & Services 6.1 7.6 Electrical Equipment 5.2 1.6 Health Care Providers & Services 5.0 5.4 Commercial Services & Supplies 4.6 4.5 Diversified Consumer Services 4.6 4.9 Auto Components 4.2 1.6 Distributors 4.2 4.3 Construction & Engineering 4.1 4.9 IT Services 4.0 5.0 Containers & Packaging 3.9 3.8 Energy Equipment & Services 3.2 2.7 Tobacco 3.0 3.1 Textiles, Apparel & Luxury Goods 2.9 3.2 Aerospace & Defense 2.7 2.9 Leisure Equipment & Products 2.5 3.1 Specialty Retail 2.4 2.1 Computers & Peripherals 2.3 2.7 Software 2.0 2.0 Diversified Financial Services 1.8 1.7 Media 1.8 2.4 Building Products 1.6 1.7 Food Products 1.6 1.6 Food & Staples Retailing 1.5 1.6 Electronic Equipment, Instruments & Components 1.4 1.5 Health Care Equipment & Supplies 1.2 1.3 Internet & Catalog Retail 1.2 1.3 Communications Equipment 1.1 1.2 Hotels, Restaurants & Leisure 1.0 1.1 Chemicals 0.9 1.0 Household Products 0.9 1.0 Other (1) 2.9 3.5 100.0 % 100.0 % ____________________ (1) Includes various industries with each industry individually less than 1.0% of the total combined LMM, Private Loan and Middle Market portfolio investments at each date. Fair Value: June 30, 2024 December 31, 2023 Machinery 8.4 % 8.8 % Professional Services 7.7 6.5 Diversified Consumer Services 6.6 7.1 Internet Software & Services 5.1 6.2 Electrical Equipment 4.8 1.7 Health Care Providers & Services 4.7 5.0 Construction & Engineering 4.4 5.1 Distributors 4.4 4.5 Computers & Peripherals 4.1 4.4 Commercial Services & Supplies 4.0 3.9 Containers & Packaging 4.0 3.9 IT Services 3.8 4.6 Auto Components 3.7 1.5 Energy Equipment & Services 3.1 2.5 Tobacco 3.1 3.2 Specialty Retail 2.8 2.7 Aerospace & Defense 2.5 2.7 Media 2.1 2.7 Software 2.1 2.1 Textiles, Apparel & Luxury Goods 2.0 2.6 Leisure Equipment & Products 1.8 2.5 Diversified Financial Services 1.7 1.6 Food Products 1.5 1.5 Building Products 1.4 1.5 Food & Staples Retailing 1.1 1.2 Air Freight & Logistics 1.0 1.1 Internet & Catalog Retail 1.0 1.2 Construction Materials 0.9 1.0 Health Care Equipment & Supplies 0.9 1.0 Other (1) 5.3 5.7 100.0 % 100.0 % ____________________ (1) Includes various industries with each industry individually less than 1.0% of the total combined LMM, Private Loan and Middle Market portfolio investments at each date.

EXTERNAL INVESTMENT MANAGER (Ta

EXTERNAL INVESTMENT MANAGER (Tables)	6 Months Ended
	Jun. 30, 2024
Investment Company [Abstract]
Schedule of Information From External Investment Manager	Summarized financial information from the separate financial statements of the External Investment Manager as of June 30, 2024 and December 31, 2023 and for the three and six months ended June 30, 2024 and 2023 is as follows: As of June 30, As of December 31, 2023 (dollars in thousands) Accounts receivable - advisory clients $ 9,831 $ 10,777 Intangible Asset 29,500 29,500 Total assets $ 39,331 $ 40,277 Accounts payable to MSCC and its subsidiaries $ 6,519 $ 7,551 Dividend payable to MSCC and its subsidiaries 3,312 3,226 Equity 29,500 29,500 Total liabilities and equity $ 39,331 $ 40,277 Three Months Ended June 30, Six Months Ended June 30, 2024 2023 2024 2023 (dollars in thousands) Management fee income $ 5,886 $ 5,544 $ 11,603 $ 11,014 Incentive fees 4,117 3,663 7,983 6,967 Administrative services fees 159 151 315 302 Total revenues 10,162 9,358 19,901 18,283 Expenses allocated from MSCC or its subsidiaries: Salaries, share-based compensation and other personnel costs (5,021) (4,897) (9,855) (9,165) Other G&A expenses (866) (791) (1,591) (1,521) Total allocated expenses (5,887) (5,688) (11,446) (10,686) Other direct G&A expenses (15) — (24) — Total expenses (5,902) (5,688) (11,470) (10,686) Pre-tax income 4,260 3,670 8,431 7,597 Tax expense (948) (811) (2,118) (1,683) Net income $ 3,312 $ 2,859 $ 6,313 $ 5,914

DEBT (Tables)

DEBT (Tables)	6 Months Ended
	Jun. 30, 2024
Debt Disclosure [Abstract]
Schedule of Debt	Summary of Main Street’s debt as of June 30, 2024 is as follows: Outstanding Unamortized Debt Issuance (Costs)/Premiums (1) Recorded Value Estimated Fair Value (2) (dollars in thousands) Corporate Facility $ 465,000 $ — $ 465,000 $ 465,000 SPV Facility 160,000 — 160,000 160,000 July 2026 Notes 500,000 (1,075) 498,925 467,950 March 2029 Notes 350,000 (3,358) 346,642 353,654 June 2027 Notes 300,000 (2,340) 297,660 300,081 SBIC Debentures 286,200 (5,583) 280,617 229,680 December 2025 Notes 150,000 (776) 149,224 149,257 Total Debt $ 2,211,200 $ (13,132) $ 2,198,068 $ 2,125,622 ____________________ (1) The unamortized debt issuance costs for the Credit Facilities are reflected as Deferred financing costs on the Consolidated Balance Sheets, while the deferred debt issuance costs related to the July 2026 Notes, March 2029 Notes, June 2027 Notes, SBIC Debentures and December 2025 Notes are reflected as contra-liabilities on the Consolidated Balance Sheets. (2) Estimated fair value for outstanding debt is shown as if Main Street had adopted the fair value option under ASC 825. See discussion of the methods used to estimate the fair value of Main Street’s debt in Note B.12. — Summary of Significant Accounting Policies — Fair Value of Financial Instruments. Summary of Main Street’s debt as of December 31, 2023 is as follows: Outstanding Unamortized Debt Issuance (Costs)/Premiums (1) Recorded Value Estimated Fair Value (2) (dollars in thousands) Corporate Facility $ 200,000 $ — $ 200,000 $ 200,000 SPV Facility 160,000 — 160,000 160,000 July 2026 Notes 500,000 (1,338) 498,662 458,105 May 2024 Notes 450,000 182 450,182 447,246 SBIC Debentures 350,000 (5,465) 344,535 288,468 December 2025 Notes 150,000 (1,035) 148,965 151,155 Total Debt $ 1,810,000 $ (7,656) $ 1,802,344 $ 1,704,974 ____________________ (1) The unamortized debt issuance costs for the Credit Facilities are reflected as Deferred financing costs on the Consolidated Balance Sheets, while the deferred debt issuance costs related to the July 2026 Notes, May 2024 Notes, SBIC Debentures and December 2025 Notes are reflected as contra-liabilities on the Consolidated Balance Sheets. (2) Estimated fair value for outstanding debt is shown as if Main Street had adopted the fair value option under ASC 825. See discussion of the methods used to estimate the fair value of Main Street’s debt in Note B.12. — Summary of Significant Accounting Policies — Fair Value of Financial Instruments.
Schedule of Interest Expense	Summarized interest expense for the three and six months ended June 30, 2024 and 2023 is as follows: Three Months Ended June 30, Six Months Ended June 30, 2024 2023 2024 2023 (dollars in thousands) Corporate Facility $ 7,240 $ 7,898 $ 11,522 $ 14,508 SPV Facility 3,096 3,511 4,774 6,941 July 2026 Notes 3,882 3,882 7,763 7,763 May 2024 Notes 1,905 5,714 7,618 11,427 March 2029 Notes 6,261 — 11,747 — June 2027 Notes 1,473 — 1,473 — SBIC Debentures 2,273 2,718 4,979 5,470 December 2025 Notes 3,031 3,031 6,061 5,643 Total Interest Expense $ 29,161 $ 26,754 $ 55,937 $ 51,752
Schedule of Condensed Balance Sheet and Statement of Operations of MSCC Funding	MSCC Funding’s balance sheets as of June 30, 2024 and December 31, 2023 are as follows: Balance Sheets (dollars in thousands) June 30, 2024 December 31, 2023 (Unaudited) ASSETS Investments at fair value: Non-Control Investments (cost: $335,118 and $315,373 as of June 30, 2024 and December 31, 2023, respectively) $ 335,892 $ 317,392 Cash and cash equivalents 6,618 12,817 Interest and dividend receivable and other assets 2,734 2,956 Receivable for securities sold 124 — Deferred financing costs (net of accumulated amortization of $1,272 and $783 as of June 30, 2024 and December 31, 2023, respectively) 3,340 3,829 Total assets 348,708 336,994 LIABILITIES SPV Facility $ 160,000 $ 160,000 Accounts payable and other liabilities to affiliates — 7,170 Interest payable 1,195 1,135 Total liabilities 161,195 168,305 NET ASSETS Contributed capital 142,619 138,163 Total undistributed earnings 44,894 30,526 Total net assets 187,513 168,689 Total liabilities and net assets $ 348,708 $ 336,994 MSCC Funding’s statements of operations for the three and six months ended June 30, 2024 and 2023 are as follows: Statements of Operations (dollars in thousands) (Unaudited) Three Months Ended June 30, Six Months Ended 2024 2023 2024 2023 INVESTMENT INCOME: Interest, fee and dividend income: Non‑Control/Non‑Affiliate investments $ 10,118 $ 9,873 $ 21,185 $ 18,590 Total investment income 10,118 9,873 21,185 18,590 EXPENSES: Interest (3,096) (3,512) (4,774) (6,940) Management Fee to MSCC (395) (410) (800) (686) General and administrative (18) (19) (36) (51) Total expenses (3,509) (3,941) (5,610) (7,677) NET INVESTMENT INCOME 6,609 5,932 15,575 10,913 NET UNREALIZED APPRECIATION (DEPRECIATION): Non‑Control/Non‑Affiliate investments (769) 1,956 (1,246) 565 Total net unrealized appreciation (depreciation) (769) 1,956 (1,246) 565 NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS $ 5,840 $ 7,888 $ 14,329 $ 11,478

FINANCIAL HIGHLIGHTS (Tables)

FINANCIAL HIGHLIGHTS (Tables)	6 Months Ended
	Jun. 30, 2024
Investment Company [Abstract]
Schedule of Financial Highlights	The following is a schedule of financial highlights of Main Street for the six months ended June 30, 2024 and 2023: Six Months Ended June 30, Per Share Data: 2024 2023 NAV at the beginning of the period $ 29.20 $ 26.86 Net investment income (1) 2.07 2.08 Net realized loss (1)(2) (0.10) (1.30) Net unrealized appreciation (1)(2) 0.74 1.75 Income tax provision (1)(2) (0.26) (0.21) Net increase in net assets resulting from operations (1) 2.45 2.32 Dividends paid from net investment income (2.04) (1.75) Dividends paid (2.04) (1.75) Impact of the net change in monthly dividends declared prior to the end of the period and paid in the subsequent period (0.01) (0.01) Accretive effect of stock offerings (issuing shares above NAV per share) 0.21 0.31 Accretive effect of DRIP issuance (issuing shares above NAV per share) 0.07 0.05 Other (3) (0.08) (0.09) NAV at the end of the period $ 29.80 $ 27.69 Market value at the end of the period $ 50.49 $ 40.03 Shares outstanding at the end of the period 86,552,506 81,431,006 ____________________ (1) Based on weighted-average number of common shares outstanding for the period. (2) Net realized gains or losses, net unrealized appreciation or depreciation, and income tax provision or benefit can fluctuate significantly from period to period. (3) Includes the impact of the different share amounts as a result of calculating certain per share data based on the weighted-average basic shares outstanding during the period and certain per share data based on the shares outstanding as of a period end or transaction date. Six Months Ended June 30, 2024 2023 (dollars in thousands) NAV at end of period $ 2,578,956 $ 2,254,948 Average NAV $ 2,524,108 $ 2,178,819 Average outstanding debt $ 2,051,543 $ 1,991,714 Ratio of total expenses, including income tax expense, to average NAV (1)(2) 4.31 % 4.49 % Ratio of operating expenses to average NAV (2)(3) 3.43 % 3.72 % Ratio of operating expenses, excluding interest expense, to average NAV (2)(3) 1.22 % 1.35 % Ratio of net investment income to average NAV (2) 7.02 % 7.65 % Portfolio turnover ratio (2) 8.62 % 7.76 % Total investment return (2)(4) 21.97 % 13.26 % Total return based on change in NAV (2)(5) 8.47 % 8.83 % ____________________ (1) Total expenses are the sum of operating expenses and net income tax provision. Net income tax provision includes the accrual of net deferred tax provision relating to the net unrealized appreciation or depreciation on portfolio investments held in Taxable Subsidiaries and due to the change in the loss carryforwards, which are non-cash in nature and may vary significantly from period to period. Main Street is required to include net deferred tax provision in calculating its total expenses even though these net deferred taxes are not currently payable or receivable. (2) Not annualized. (3) Unless otherwise noted, operating expenses include interest, compensation, general and administrative and share-based compensation expenses, net of expenses allocated to the External Investment Manager of $11.4 million and $10.7 million for the six months ended June 30, 2024 and 2023, respectively. (4) Total investment return is based on the purchase of stock at the current market price on the first day and a sale at the current market price on the last day of each period reported on the table and assumes reinvestment of dividends at prices obtained by Main Street’s dividend reinvestment plan during the period. The return does not reflect any sales load that may be paid by an investor. (5) Total return based on change in NAV was calculated using the sum of ending NAV plus dividends to stockholders and other non-operating changes during the period, divided by the beginning NAV. Non-operating changes include any items that affect NAV other than the net increase in net assets resulting from operations, such as the effects of stock offerings, shares issued under the DRIP and equity incentive plans and other miscellaneous items.

DIVIDENDS, DISTRIBUTIONS AND _2

DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME (Tables)	6 Months Ended
	Jun. 30, 2024
Income Tax Disclosure [Abstract]
Schedule of Taxable Income and To Total Distributions Declared to Common Stock Reconciliation	Listed below is a reconciliation of “Net increase in net assets resulting from operations” to taxable income and to total distributions declared to common stockholders for the six months ended June 30, 2024 and 2023. Six Months Ended June 30, 2024 2023 (estimated, dollars in thousands) Net increase in net assets resulting from operations $ 209,835 $ 186,107 Book-tax difference from share-based compensation expense (10,123) (7,646) Net unrealized appreciation (63,693) (140,059) Income tax provision 22,010 16,760 Pre-tax book (income) loss not consolidated for tax purposes (33,694) 44,328 Book income and tax income differences, including debt origination, structuring fees, dividends, realized gains and changes in estimates 29,576 45,352 Estimated taxable income (1) 153,911 144,842 Taxable income earned in prior year and carried forward for distribution in current year 56,142 49,216 Taxable income earned prior to period end and carried forward for distribution next period (55,633) (71,501) Dividend payable as of period end and paid in the following period 21,205 18,729 Total distributions accrued or paid to common stockholders $ 175,625 $ 141,286 ____________________ (1) MSCC’s taxable income for each period is an estimate and will not be finally determined until MSCC files its tax return for each year. Therefore, the final taxable income, and the taxable income earned in each period and carried forward for distribution in the following period, may be different than this estimate.
Schedule of Components of Income Tax Provision	Main Street’s provision for income taxes was comprised of the following for the three and six months ended June 30, 2024 and 2023: Three Months Ended June 30, Six Months Ended June 30, 2024 2023 2024 2023 (dollars in thousands) Current tax expense: Federal $ 328 $ 158 $ 657 $ 298 State 997 433 1,878 1,289 Excise 272 1,080 1,193 1,820 Total current tax expense 1,597 1,671 3,728 3,407 Deferred tax expense: Federal 8,867 6,444 16,518 12,250 State 606 532 1,764 1,103 Total deferred tax expense 9,473 6,976 18,282 13,353 Total income tax provision $ 11,070 $ 8,647 $ 22,010 $ 16,760

DIVIDEND REINVESTMENT PLAN (Tab

DIVIDEND REINVESTMENT PLAN (Tables)	6 Months Ended
	Jun. 30, 2024
Equity [Abstract]
Schedule of Summarized Dividend Reinvestment Plan Information	Summarized DRIP information for the six months ended June 30, 2024 and 2023 is as follows: Six Months Ended June 30, 2024 2023 (dollars in thousands) DRIP participation $ 17,229 $ 14,688 Shares issued for DRIP 366,496 374,173

SHARE-BASED COMPENSATION (Table

SHARE-BASED COMPENSATION (Tables)	6 Months Ended
	Jun. 30, 2024
Share-Based Payment Arrangement [Abstract]
Schedule of Restricted Stock Issued	The following table summarizes the restricted stock issuances approved by Main Street’s Board of Directors under the Equity and Incentive Plan, net of shares forfeited, if any, and the remaining shares of restricted stock available for issuance as of June 30, 2024. Restricted stock authorized under the plan 5,000,000 Less net restricted stock granted (1,049,573) Restricted stock available for issuance as of June 30, 2024 3,950,427 As of June 30, 2024, the following table summarizes the restricted stock issued to Main Street’s non-employee directors and the remaining shares of restricted stock available for issuance pursuant to the Main Street Capital Corporation 2022 Non-Employee Director Restricted Stock Plan. These shares are granted upon appointment or election to the board and vest on the day immediately preceding the annual meeting of stockholders following the respective grant date and are expensed over such service period. Restricted stock authorized under the plan 300,000 Less net restricted stock granted (11,065) Restricted stock available for issuance as of June 30, 2024 288,935
Schedule of Summarized Restricted Stock Awards	Summarized RSA activity for the six months ended June 30, 2024 is as follows: Six Months Ended June 30, 2024 Number Weighted-Average Grant-Date Fair Value Restricted Stock Awards (RSAs): of Shares ($ per share) Non-vested, December 31, 2023 958,225 $ 40.48 Granted (1) 512,134 46.94 Vested (1)(2) (407,631) 40.62 Forfeited (21,139) 42.78 Non-vested, June 30, 2024 1,041,589 $ 43.56 Aggregate intrinsic value as of June 30, 2024 (in thousands) $ 52,590 (3) ___________________________ (1) Restricted units generally vest over a three-year or five-year period from the grant date (as noted above). (2) Vested shares included 155,046 shares withheld for payroll taxes paid on behalf of employees. (3) Aggregate intrinsic value is the product of total non-vested restricted shares as of June 30, 2024 and $50.49 per share, the closing price of our common stock on June 30, 2024.

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Tables)	6 Months Ended
	Jun. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Schedule of Outstanding Commitments	At June 30, 2024, Main Street had the following outstanding commitments (in thousands): Investments with equity capital commitments that have not yet funded: Amount Brightwood Capital Fund Investments Brightwood Capital Fund V, LP $ 2,500 Brightwood Capital Fund III, LP 65 2,565 EnCap Equity - Fund XII, LP 5,609 Harris Preston Fund Investments HPEP 4, L.P. 7,495 HPEP 3, L.P. 1,308 8,803 MS Private Loan Fund I, LP 750 MS Private Loan Fund II, LP 8,691 UnionRock Energy Fund Investments UnionRock Energy Fund III, LP 5,000 UnionRock Energy Fund II, LP 527 5,527 Total Equity Commitments (1)(2) $ 31,945 Investments with commitments to fund revolving loans that have not been fully drawn or term loans with additional commitments not yet funded: ZRG Partners, LLC $ 28,876 HEADLANDS OP-CO LLC 16,875 Creative Foam Corporation 15,375 Computer Data Source, LLC 9,000 CQ Fluency, LLC 6,750 Insight Borrower Corporation 6,688 JDC Power Services, LLC 6,211 Garyline, LLC 6,000 California Splendor Holdings LLC 6,000 Veregy Consolidated, Inc. 5,875 SI East, LLC 5,250 Gulf Manufacturing, LLC 5,000 PTL US Bidco, Inc 4,612 South Coast Terminals Holdings, LLC 4,465 BP Loenbro Holdings Inc. 4,346 Cody Pools, Inc. 4,214 Bettercloud, Inc. 4,189 IG Investor, LLC 4,000 AB Centers Acquisition Corporation 3,910 AVEX Aviation Holdings, LLC 3,684 Mako Steel, LP 3,651 Microbe Formulas, LLC 3,601 Johnson Downie Opco, LLC 3,600 Titan Meter Midco Corp. 3,598 Nello Industries Investco, LLC 3,426 VVS Holdco LLC 3,200 Watterson Brands, LLC 3,176 Coregistics Buyer LLC 3,100 Power System Solutions 3,085 MS Private Loan Fund 3,000 MetalForming AcquireCo, LLC 2,795 Winter Services LLC 2,667 IG Parent Corporation (Infogain) 2,500 NexRev LLC 2,400 Centre Technologies Holdings, LLC 2,400 Burning Glass Intermediate Holding Company, Inc. 2,397 Engineering Research & Consulting, LLC 2,293 GS HVAM Intermediate, LLC 2,273 Imaging Business Machines, L.L.C. 2,174 Sales Performance International, LLC 2,130 Cybermedia Technologies, LLC 2,000 The Affiliati Network, LLC 2,000 PurgeRite, LLC 1,969 Elgin AcquireCo, LLC 1,877 Career Team Holdings, LLC 1,800 NinjaTrader, LLC 1,750 SPAU Holdings, LLC 1,661 Batjer TopCo, LLC 1,620 Trantech Radiator Topco, LLC 1,600 Chamberlin Holding LLC 1,600 Pinnacle TopCo, LLC 1,600 Colonial Electric Company LLC 1,600 Acumera, Inc. 1,598 Channel Partners Intermediateco, LLC 1,554 GULF PACIFIC ACQUISITION, LLC 1,515 Bond Brand Loyalty ULC 1,427 Bluestem Brands, Inc. 1,374 American Health Staffing Group, Inc. 1,333 Escalent, Inc. 1,326 Nebraska Vet AcquireCo, LLC 1,250 CaseWorthy, Inc. 1,230 Gamber-Johnson Holdings, LLC 1,200 Clad-Rex Steel, LLC 1,200 Invincible Boat Company, LLC. 1,080 ATS Operating, LLC 1,044 ArborWorks, LLC 868 Mystic Logistics Holdings, LLC 800 Orttech Holdings, LLC 800 Barfly Ventures, LLC 760 Mini Melts of America, LLC 655 Analytical Systems Keco Holdings, LLC 580 Eastern Wholesale Fence LLC 520 Jensen Jewelers of Idaho, LLC 500 MS Private Loan Fund II 500 Island Pump and Tank, LLC 456 Jackmont Hospitality, Inc. 441 Gulf Publishing Holdings, LLC 400 Wall Street Prep, Inc. 400 Vitesse Systems 386 ITA Holdings Group, LLC 286 Roof Opco, LLC 233 GRT Rubber Technologies LLC 204 AAC Holdings, Inc. 200 Obra Capital, Inc. 148 Inspire Aesthetics Management, LLC 50 Buca C, LLC 32 Adams Publishing Group, LLC 2 Total Loan Commitments $ 256,215 Total Commitments $ 288,160 ____________________ (1) This table excludes commitments related to six additional Other Portfolio investments for which the investment period has expired and remaining commitments may only be drawn to pay fund expenses. The Company does not expect any material future capital to be called on its commitment to these investments and as a result has excluded those commitments from this table. (2) This table excludes commitments related to five additional Other Portfolio investments for which the investment period has expired and remaining commitments may only be drawn to pay fund expenses or for follow on investments in existing portfolio companies. The Company does not expect any material future capital to be called on its commitment to these investments to pay fund expenses, and based on representations from the fund manager, the Company does not expect any further capital will be called on its commitment for follow on investments. As a result, the Company has excluded those commitments from this table.

Consolidated Schedule of Inve_4

Consolidated Schedule of Investments In and Advances to Affiliates (Tables)	6 Months Ended
	Jun. 30, 2024
Investments in and Advances to Affiliates, Schedule of Investments [Abstract]
Schedule of Investments in and Advances to Affiliates, Schedule of Investments	Company Total Rate Base Rate Spread PIK Rate Type of Investment (1) (10) (11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, Majority-owned investments Analytical Systems Keco Holdings, LLC 15.38% SF+ 10.00% Secured Debt (12) (8) $ — $ — $ — $ 219 $ 1 $ — $ 220 15.38% SF+ 10.00% Secured Debt (8) — — 346 4,084 34 195 3,923 14.13% Preferred Member Units (8) — — — — — — — Preferred Member Units (8) — 760 — 4,860 760 — 5,620 Warrants (8) — — — — — — — Brewer Crane Holdings, LLC 15.48% SF+ 10.00% Secured Debt (9) — — 429 5,498 14 248 5,264 Preferred Member Units (9) — (320) 60 5,620 — 320 5,300 Café Brazil, LLC Member Units (8) — (189) 20 1,980 — 190 1,790 California Splendor Holdings LLC 14.00% 4.00% Secured Debt (9) — (79) 2,088 27,655 299 79 27,875 Preferred Member Units (9) — — 125 15,695 — — 15,695 15.00% 15.00% Preferred Member Units (9) — — 572 4,601 5,572 — 10,173 Clad-Rex Steel, LLC Secured Debt (12) (5) — — 1 — — — — 11.50% Secured Debt (5) — — 512 8,422 — 621 7,801 10.00% Secured Debt (5) — — 51 1,004 — 19 985 Member Units (5) — 1,010 422 5,200 1,010 — 6,210 Member Units (5) — (179) — 1,129 — 179 950 Cody Pools, Inc. Secured Debt (12) (8) — 4 31 — 1,264 1,264 — 12.50% Secured Debt (8) — (6) 2,604 42,073 6 1,278 40,801 Preferred Member Units (8) — 2,010 1,508 72,470 2,010 — 74,480 CompareNetworks Topco, LLC SF+ 9.00% Secured Debt (9) — — — — — — — 14.48% SF+ 9.00% Secured Debt (9) — — 247 3,454 — 357 3,097 Preferred Member Units (9) — (1,520) — 14,450 — 1,520 12,930 Cybermedia Technologies, LLC Secured Debt (12) (6) — — 5 — — — — 13.00% Secured Debt (6) — — 1,881 28,389 35 975 27,449 Preferred Member Units (6) — 1,020 1,041 15,000 1,020 — 16,020 Datacom, LLC 7.50% Secured Debt (8) — — 14 447 226 405 268 10.00% Secured Debt (8) — — 491 7,587 73 135 7,525 Preferred Member Units (8) — 130 — 70 130 — 200 Direct Marketing Solutions, Inc. Secured Debt (9) — (14) 48 1,233 1,289 2,522 — 14.00% Secured Debt (9) — (23) 1,797 25,543 23 843 24,723 Preferred Stock (9) — (1,140) — 20,740 — 1,140 19,600 Elgin AcquireCo, LLC SF+ 6.00% Secured Debt (12) (5) — — 4 (7) 1 — (6) 12.00% Secured Debt (5) — — 1,133 18,632 21 469 18,184 9.00% Secured Debt (5) — — 285 6,252 2 24 6,230 Common Stock (5) — (360) — 6,090 — 360 5,730 Common Stock (5) — 80 — 1,670 80 — 1,750 Gamber-Johnson Holdings, LLC SF+ 7.50% Secured Debt (12) (5) — — 3 — — — — 10.50% SF+ 7.50% Secured Debt (5) — (61) 2,763 54,078 61 4,861 49,278 Member Units (5) — 9,840 3,001 96,710 9,840 — 106,550 GRT Rubber Technologies LLC 11.48% SF+ 6.00% Secured Debt (12) (8) — 2 163 2,400 746 — 3,146 13.48% SF+ 8.00% Secured Debt (8) — (23) 2,782 40,493 23 23 40,493 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1) (10) (11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, Member Units (8) — — 84 44,440 — — 44,440 Gulf Publishing Holdings, LLC SF+ 9.50% Secured Debt (12) (8) — — — — — — — 12.50% 12.50% Secured Debt (8) — (336) 76 2,284 — 336 1,948 Preferred Equity (8) — (2,460) — 2,460 — 2,460 — Member Units (8) — — — — — — — IG Investor, LLC Secured Debt (12) (6) — — 14 (35) 4 — (31) 13.00% Secured Debt (6) — — 2,448 36,934 42 880 36,096 Common Equity (6) — — — 14,400 — — 14,400 Jensen Jewelers of Idaho, LLC P+ 6.75% Secured Debt (12) (9) — — 3 — — — — 15.00% P+ 6.75% Secured Debt (9) — — 149 1,998 — 198 1,800 Member Units (9) — (90) 769 12,420 — 90 12,330 Kickhaefer Manufacturing Company, LLC 12.00% Secured Debt (5) — — 1,174 19,774 8 2,400 17,382 9.00% Secured Debt (5) — — 174 3,805 164 21 3,948 Preferred Equity (5) — 2,240 — 9,690 2,240 — 11,930 Member Units (5) — (240) 65 2,730 — 240 2,490 Metalforming Holdings, LLC Secured Debt (12) (7) — — 5 — — — — 10.75% Secured Debt (7) — — 1,370 23,623 31 1,146 22,508 8.00% 8.00% Preferred Equity (7) — 236 — 6,035 236 119 6,152 Common Stock (7) — 1,570 434 1,500 1,570 — 3,070 MH Corbin Holding LLC 14.00% Secured Debt (5) — — 369 5,022 — 160 4,862 Preferred Member Units (5) — — — 330 — — 330 Preferred Member Units (5) — — — — — — — MSC Adviser I, LLC Member Units (8) — 12,497 6,312 174,063 12,497 — 186,560 Mystic Logistics Holdings, LLC Secured Debt (12) (6) — — 2 — — — — 10.00% Secured Debt (6) — 18 292 5,746 — — 5,746 Common Stock (6) — (290) 1,924 26,390 — 290 26,100 OMi Topco, LLC 12.00% Secured Debt (8) — (16) 766 12,750 16 766 12,000 Preferred Member Units (8) — 11,900 2,475 36,380 11,900 — 48,280 PPL RVs, Inc. SF+ 8.75% Secured Debt (8) — (1) 1 — 1 1 — 14.23% SF+ 8.75% Secured Debt (8) — (30) 1,438 19,877 30 886 19,021 Common Stock (8) — (1,110) — 16,980 — 1,110 15,870 Common Stock (8) — 146 — 368 146 — 514 Principle Environmental, LLC 13.00% Secured Debt (8) — — 399 5,829 12 — 5,841 Preferred Member Units (8) — 50 491 10,750 50 — 10,800 Common Stock (8) — — — 510 — — 510 Quality Lease Service, LLC Member Units (7) — — — 460 — — 460 Robbins Bros. Jewelry, Inc. 10.00% Secured Debt (9) — — 8 (26) 2 — (24) 12.50% 10.00% Secured Debt (9) — (12,978) 1,083 30,798 19 13,429 17,388 Preferred Equity (9) — — 6 — — — — Trantech Radiator Topco, LLC Secured Debt (12) (7) — — 2 — — — — 13.50% Secured Debt (7) — 71 529 7,920 — — 7,920 Common Stock (7) — (2,970) 58 12,740 — 2,970 9,770 Volusion, LLC 10.00% Secured Debt (8) — — 106 2,100 — — 2,100 Preferred Member Units (8) — — — — — — — Company Total Rate Base Rate Spread PIK Rate Type of Investment (1) (10) (11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, Preferred Member Units (8) — 1,867 — 7,250 1,868 2,118 7,000 Preferred Member Units (8) — — — — — — — Common Stock (8) — — — — — — — Ziegler’s NYPD, LLC 12.00% Secured Debt (8) — — 27 450 — — 450 6.50% Secured Debt (8) — — 33 945 — — 945 14.00% Secured Debt (8) — (369) 195 2,080 — 370 1,710 Preferred Member Units (8) — — — — — — — Warrants (8) — — — — — — — Other controlled investments 2717 MH, L.P. LP Interests (2717 MH, L.P.) (8) 57 2,941 278 6,050 2,998 57 8,991 LP Interests (2717 HPP-MS, L.P.) (8) — 60 — 315 59 — 374 LP Interests (2717 GRE-LP, L.P.) (8) — — — — 441 — 441 ASC Interests, LLC 13.00% Secured Debt (8) — — 27 400 — — 400 13.00% Secured Debt (8) — — 109 1,597 1 — 1,598 Preferred Member Units (8) — — — 266 — — 266 Member Units (8) — (60) — 100 — 60 40 ATS Workholding, LLC 5.00% Secured Debt (9) — (281) — 328 167 281 214 5.00% Secured Debt (9) — (187) — 473 — 188 285 Preferred Member Units (9) — — — — — — — Barfly Ventures, LLC 7.00% Secured Debt (12) (5) — — 26 711 — — 711 Member Units (5) — 580 — 4,140 580 — 4,720 Batjer TopCo, LLC 10.00% Secured Debt (12) (8) — (6) 18 — 451 6 445 10.00% Secured Debt (12) (8) — — 14 270 — — 270 10.00% Secured Debt (8) — (67) 545 10,575 10 67 10,518 Preferred Stock (8) — (430) 407 6,150 — 430 5,720 Bolder Panther Group, LLC 13.43% SF+ 8.05% Secured Debt (9) — (27) 6,787 96,556 7,563 1,283 102,836 8.00% Class B Preferred Member Units (9) — 3,690 1,390 31,020 3,690 — 34,710 Secured Debt (9) — — 95 — — — — Bridge Capital Solutions Corporation 13.00% Secured Debt (6) — — 579 8,813 — — 8,813 13.00% Secured Debt (6) — — 66 1,000 — — 1,000 Preferred Member Units (6) — — 50 1,000 — — 1,000 Warrants (6) — (25) — 1,808 — 25 1,783 Warrants (6) — (35) — 2,482 — 35 2,447 CBT Nuggets, LLC Member Units (9) — (590) 1,235 50,130 — 590 49,540 Centre Technologies Holdings, LLC SF+ 10.00% Secured Debt (12) (8) — — 6 — — — — 15.48% SF+ 10.00% Secured Debt (8) — 223 1,383 — 21,974 1,512 20,462 Secured Debt (8) — (62) 281 17,574 — 17,574 — Preferred Member Units (8) — 460 60 11,040 460 — 11,500 Chamberlin Holding LLC SF+ 6.00% Secured Debt (12) (8) — (45) 49 — 45 45 — 13.49% SF+ 8.00% Secured Debt (8) — (1) 1,066 15,620 1 1 15,620 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1) (10) (11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, Member Units (8) — 710 3,396 29,320 710 — 30,030 Member Units (8) — 290 46 2,860 290 — 3,150 Charps, LLC 10.00% Unsecured Debt (5) — (244) 528 5,694 244 244 5,694 Preferred Member Units (5) — (110) 155 15,690 — 110 15,580 Colonial Electric Company LLC Secured Debt (12) (6) — — 4 — — — — 12.00% Secured Debt (6) — 385 1,246 21,627 423 3,910 18,140 Preferred Member Units (6) — (1,440) 1,440 2,400 — 2,400 — Preferred Member Units (6) — 4,060 556 7,680 4,060 — 11,740 Compass Systems & Sales, LLC 13.50% Secured Debt (5) — — 42 — 1,584 — 1,584 13.50% Secured Debt (5) — — 1,191 17,034 17 — 17,051 Preferred Equity (5) — 496 120 7,454 496 — 7,950 Copper Trail Fund Investments LP Interests (CTMH, LP) (9) — — — 568 — — 568 Digital Products Holdings LLC 15.38% SF+ 10.00% Secured Debt (5) — — 1,116 14,690 34 1,453 13,271 Preferred Member Units (5) — — 100 9,835 — — 9,835 Garreco, LLC SF+ 8.00% Secured Debt (8) — — 92 3,088 — 3,088 — Member Units (8) — — 43 1,580 — — 1,580 Harrison Hydra-Gen, Ltd. Common Stock (8) — 560 — 4,660 560 — 5,220 JorVet Holdings, LLC 12.00% Secured Debt (9) — — 1,584 25,483 30 647 24,866 Preferred Equity (9) — — 490 10,741 — — 10,741 KBK Industries, LLC 9.00% Secured Debt (5) — (8) 214 4,700 8 408 4,300 Member Units (5) — 2,050 1,135 22,770 2,050 — 24,820 MS Private Loan Fund I, LP 5.00% Secured Debt (12) (8) — — 32 — 15,500 8,500 7,000 LP Interests (12) (8) — (58) 1,089 14,527 — 58 14,469 MS Private Loan Fund II, LP 8.88% SF+ 3.50% Secured Debt (12) (8) — — 1,446 23,367 32,541 6,500 49,408 LP Interests (12) (8) — 85 93 1,561 2,249 — 3,810 MSC Income Fund, Inc. Common Equity (8) — (131) 868 10,025 5,000 131 14,894 NAPCO Precast, LLC Member Units (8) — (1,350) 63 11,730 — 1,350 10,380 Nello Industries Investco, LLC 11.88% SF+ 6.50% Secured Debt (12) (5) — — 118 — 10,946 — 10,946 13.50% Secured Debt (5) — — 751 — 24,556 — 24,556 Common Equity (5) — — — — 12,120 — 12,120 NexRev LLC 10.00% Secured Debt (12) (8) — — 42 — 1,600 — 1,600 10.00% Secured Debt (8) — 34 522 9,751 60 — 9,811 Preferred Member Units (8) — 1,860 471 6,350 1,860 — 8,210 NRP Jones, LLC 12.00% Secured Debt (5) — — 126 2,080 — — 2,080 Member Units (5) — (77) — 1,466 — 77 1,389 Member Units (5) — (3) — 53 — 3 50 NuStep, LLC 11.98% SF+ 6.50% Secured Debt (5) — — 221 3,600 — — 3,600 12.00% Secured Debt (5) — — 1,125 18,426 6 — 18,432 Preferred Member Units (5) — 960 — 9,240 960 — 10,200 Preferred Member Units (5) — — — 5,150 — — 5,150 Orttech Holdings, LLC SF+ 11.00% Secured Debt (12) (5) — — — — — — — 16.48% SF+ 11.00% Secured Debt (5) — (23) 1,852 22,040 23 103 21,960 Preferred Stock (5) — (1,990) 264 17,050 — 1,990 15,060 Pearl Meyer Topco LLC 12.00% Secured Debt (6) — — 279 3,500 1,500 — 5,000 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1) (10) (11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, 12.00% Secured Debt (6) — 110 1,724 20,000 18,219 — 38,219 12.00% Secured Debt (6) — (13) 1,692 27,681 13 13 27,681 Preferred Equity (6) — 9,250 5,885 44,090 9,250 — 53,340 Pinnacle TopCo, LLC Secured Debt (12) (8) — — 12 444 2 460 (14) 13.00% Secured Debt (8) — — 2,044 30,339 30 — 30,369 Preferred Equity (8) — 2,790 853 12,540 2,790 — 15,330 River Aggregates, LLC Member Units (8) (409) 80 — 3,710 80 — 3,790 Tedder Industries, LLC 12.00% 12.00% Secured Debt (9) — — 56 1,726 — — 1,726 12.00% 12.00% Secured Debt (9) — (9,605) 461 14,262 — 9,605 4,657 Preferred Member Units (9) — — — — — — — Preferred Member Units (9) — — — — — — — Preferred Member Units (9) — — — — — — — Televerde, LLC Member Units (8) — (2,164) — 4,734 — 2,164 2,570 Preferred Stock (8) — — — 1,794 — 1 1,793 Vision Interests, Inc. Series A Preferred Stock (9) — — — 3,000 — — 3,000 VVS Holdco LLC SF+ 6.00% Secured Debt (12) (5) — — 8 — — — — 11.50% Secured Debt (5) — — 1,648 28,035 34 1,160 26,909 Preferred Equity (5) — — 204 12,240 — — 12,240 — — — — — — — — — — — — — — Other — — — — — — — Amounts related to investments transferred to or from other 1940 Act classification during the period — 4,370 2,811 60,384 — — — Total Control investments $ (352) $ 37,659 $ 102,437 $ 2,006,698 $ 243,661 $ 114,546 $ 2,075,429 Affiliate Investments 423 HAR, LP LP Interests (423 HAR, L.P.) (8) $ — $ 51 $ — $ 996 $ 52 $ — $ 1,048 AAC Holdings, Inc. 18.00% 18.00% Secured Debt (12) (7) — (2) 44 418 60 2 476 18.00% 18.00% Secured Debt (7) — (44) 1,404 13,895 1,919 44 15,770 Common Stock (7) — — — — — — — Warrants (7) — — — — — — — Boccella Precast Products LLC 10.00% Secured Debt (6) — (55) 16 320 — 55 265 Member Units (6) — (1,680) 18 1,990 — 1,680 310 Buca C, LLC 14.00% 14.00% Secured Debt (7) — — 563 12,144 371 — 12,515 6.00% 6.00% Preferred Member Units (7) — — — — — — — 14.00% 14.00% Secured Debt (12) (7) — — — — 58 — 58 Career Team Holdings, LLC 11.38% SF+ 6.00% Secured Debt (12) (6) — — 53 881 1,803 1,800 884 13.00% Secured Debt (6) — — 1,330 19,906 21 180 19,747 Common Stock (6) — — — 4,500 — — 4,500 Classic H&G Holdings, LLC SF+ 6.00% Secured Debt (6) — — 181 4,560 — 4,560 — Secured Debt (6) — (50) 654 19,274 50 19,324 — Preferred Member Units (6) 10,365 (7,771) 1,470 16,000 10,365 23,896 2,469 Congruent Credit Opportunities Funds LP Interests (Congruent Credit Opportunities Fund III, LP) (8) — (51) 152 4,352 — 1,810 2,542 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1) (10) (11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, DMA Industries, LLC 12.00% Secured Debt (7) — (28) 1,139 18,800 28 2,028 16,800 Preferred Equity (7) — (1,716) — 7,660 3,068 1,716 9,012 12.00% Secured Debt (7) — 6 8 — 560 — 560 Dos Rios Partners LP Interests (Dos Rios Partners, LP) (8) — 111 — 8,443 111 142 8,412 LP Interests (Dos Rios Partners - A, LP) (8) — 35 — 2,631 35 45 2,621 Dos Rios Stone Products LLC Class A Preferred Units (8) — (250) — 1,580 — 250 1,330 EIG Fund Investments LP Interests (EIG Global Private Debt Fund-A, L.P.) (8) — — 42 760 1 — 761 FCC Intermediate Holdco, LLC 13.00% Secured Debt (5) — — 1,198 — 28,691 — 28,691 Warrants (5) — — — — 3,920 — 3,920 Flame King Holdings, LLC Preferred Equity (9) — 7,850 1,570 27,900 7,850 — 35,750 Freeport Financial SBIC Fund LP LP Interests (Freeport Financial SBIC Fund LP) (5) — (77) — 3,012 — 356 2,656 LP Interests (Freeport First Lien Loan Fund III LP) (5) — — 255 3,704 1 1,109 2,596 GFG Group, LLC 8.00% Secured Debt (5) — (10) 388 9,345 10 10 9,345 Preferred Member Units (5) — (1,650) 781 11,460 — 1,650 9,810 Gulf Manufacturing, LLC SF+ 7.63% Secured Debt (12) (8) — 47 111 — — — — 13.00% SF+ 7.63% Secured Debt (8) — 373 2,887 — 40,000 — 40,000 Member Units (8) — 5,910 1,092 9,070 5,910 — 14,980 Hawk Ridge Systems, LLC 11.48% SF+ 6.00% Secured Debt (9) — — 142 1,974 3,876 3,760 2,090 12.50% Secured Debt (9) — (27) 2,887 45,256 27 27 45,256 Preferred Member Units (9) — 600 — 17,460 600 — 18,060 Preferred Member Units (9) — 30 — 920 30 — 950 Houston Plating and Coatings, LLC 8.00% Unsecured Convertible Debt (8) — 60 121 2,880 60 — 2,940 Member Units (8) — (130) 34 3,340 — 130 3,210 HPEP 3, L.P. LP Interests (HPEP 3, L.P.) (12) (8) — 247 — 4,225 247 — 4,472 LP Interests (HPEP 4, L.P.) (12) (8) — 329 — 3,773 1,211 — 4,984 LP Interests (423 COR, L.P.) (8) — 675 88 1,869 2,175 — 4,044 I-45 SLF LLC Member Units (Fully diluted 20.0%; 21.75% profits interest) (8) (7,107) 6,710 429 13,490 — 13,490 — Independent Pet Partners Intermediate Holdings, LLC Common Equity (6) — 420 — 17,690 420 — 18,110 Infinity X1 Holdings, LLC 13.00% Secured Debt (9) — — 1,147 17,403 33 2,050 15,386 Preferred Equity (9) — — 512 4,000 368 — 4,368 Integral Energy Services 13.06% SF+ 7.50% Secured Debt (8) — 330 955 13,891 380 1,570 12,701 10.00% 10.00% Preferred Equity (8) — 125 15 300 140 — 440 Common Stock (8) — 390 21 160 390 — 550 Iron-Main Investments, LLC 13.50% Secured Debt (5) — — 311 4,487 3 — 4,490 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1) (10) (11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, 13.50% Secured Debt (5) — — 203 2,922 2 — 2,924 13.50% Secured Debt (5) — — 610 8,944 — — 8,944 13.50% Secured Debt (5) — — 1,363 19,503 26 2,000 17,529 13.50% Secured Debt (5) — — 752 10,273 45 400 9,918 Common Stock (5) — — — 2,680 — — 2,680 Preferred Equity (5) — — — — 711 — 711 ITA Holdings Group, LLC 16.46% SF+ 9.00% 2.00% Secured Debt (8) — — 86 816 365 — 1,181 16.46% SF+ 9.00% 2.00% Secured Debt (12) (8) — — 63 697 10 — 707 15.46% SF+ 8.00% 2.00% Secured Debt (8) — — 476 3,430 177 — 3,607 17.46% SF+ 10.00% 2.00% Secured Debt (8) — — 521 3,430 177 — 3,607 Warrants (8) — 569 — 2,091 569 — 2,660 Johnson Downie Opco, LLC Secured Debt (12) (8) — (3) 12 — 3 3 — 15.00% Secured Debt (8) — (29) 1,829 24,207 29 2,729 21,507 Preferred Equity (8) — 3,450 469 9,620 3,450 — 13,070 Nebraska Vet AcquireCo, LLC 12.48% SF+ 7.00% Secured Debt (12) (5) — 8 19 — 1,250 — 1,250 Secured Debt (5) — (121) 1,205 25,794 — 25,794 — Secured Debt (5) — (43) 454 10,500 — 10,500 — Preferred Member Units (5) — 4,390 474 15,020 4,390 — 19,410 12.50% Secured Debt (5) — 140 1,425 — 62,200 — 62,200 Secured Debt (5) — 198 108 — — — — OnAsset Intelligence, Inc. 12.00% 12.00% Secured Debt (8) — (110) — 326 — 111 215 12.00% 12.00% Secured Debt (8) — (113) — 332 — 112 220 12.00% 12.00% Secured Debt (8) — (243) — 716 — 243 473 12.00% 12.00% Secured Debt (8) — (506) — 1,493 — 506 987 10.00% 10.00% Unsecured Debt (8) — — — 305 — — 305 7.00% 7.00% Preferred Stock (8) — — — — — — — Common Stock (8) — — — — — — — Warrants (8) — — — — — — — Oneliance, LLC SF+ 10.00% Secured Debt (7) — — — — — — — 15.48% SF+ 10.00% Secured Debt (7) — 83 438 5,350 90 240 5,200 Preferred Stock (7) — 522 — 1,128 522 — 1,650 Quality Lease Service, LLC Preferred Member Units (8) (2,505) 2,500 — — 2,500 2,500 — SI East, LLC 11.75% Secured Debt (12) (7) — (2) 121 1,125 2,252 1,127 2,250 Secured Debt (7) — (241) 2,599 54,536 — 54,536 — 12.62% Secured Debt (7) — 58 1,464 — 67,661 — 67,661 Preferred Member Units (7) — (1,480) 1,858 19,170 — 1,480 17,690 Slick Innovations, LLC 14.00% Secured Debt (6) — 86 1,231 11,440 7,600 960 18,080 Common Stock (6) — 26 234 2,310 26 456 1,880 Student Resource Center, LLC 8.50% 8.50% Secured Debt (6) — (1,546) — 3,190 — 1,546 1,644 Preferred Equity (6) — — — — — — — Superior Rigging & Erecting Co. Secured Debt (7) — — 1,193 20,427 73 20,500 — Preferred Member Units (7) — 490 — 5,940 490 — 6,430 The Affiliati Network, LLC Secured Debt (12) (9) — — 9 150 642 800 (8) 10.00% Secured Debt (9) — — 440 7,347 14 1,200 6,161 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1) (10) (11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, Preferred Stock (9) — — 53 6,400 — — 6,400 Preferred Stock (9) — — — 172 64 — 236 UnionRock Energy Fund II, LP LP Interests (12) (9) — 197 — 5,694 198 168 5,724 UnionRock Energy Fund III, LP LP Interests (12) (9) — 994 — 2,838 3,494 — 6,332 UniTek Global Services, Inc. 15.00% 15.00% Secured Convertible Debt (6) — — 132 3,889 132 — 4,021 15.00% 15.00% Secured Convertible Debt (6) — — 65 1,908 64 — 1,972 20.00% 20.00% Preferred Stock (6) — (224) 270 2,833 271 224 2,880 20.00% 20.00% Preferred Stock (6) — 140 — 3,698 140 — 3,838 19.00% 19.00% Preferred Stock (6) — — — — — — — 13.50% 13.50% Preferred Stock (6) — — — — — — — Common Stock (6) — — — — — — — Universal Wellhead Services Holdings, LLC 14.00% 14.00% Preferred Member Units (8) — (150) — 150 — 150 — Member Units (8) — — — — — — — Urgent DSO LLC 13.50% Secured Debt (5) — — 631 — 8,718 — 8,718 9.00% 9.00% Preferred Equity (5) — — 136 — 4,136 — 4,136 World Micro Holdings, LLC 13.00% Secured Debt (7) — — 778 12,028 12 — 12,040 Preferred Equity (7) — — — 3,845 — — 3,845 Other — — — — — — — Amounts related to investments transferred to or from other 1940 Act classification during the period — (4,370) (2,811) (60,384) — — — Total Affiliate investments $ 753 $ 15,428 $ 40,928 $ 615,002 $ 287,347 $ 209,969 $ 752,764 ____________________ (1) The principal amount, the ownership detail for equity investments and if the investment is income producing is included in the Consolidated Schedule of Investments included in Item 1. Consolidated Financial Statements of this Quarterly Report on Form 10-Q. (2) Represents the total amount of interest, fees and dividends credited to income for the portion of the period for which an investment was included in Control or Affiliate categories, respectively. For investments transferred between Control and Affiliate categories during the period, any income or investment balances related to the time period it was in the category other than the one shown at period end is included in “Amounts related to investments transferred from other 1940 Act classifications during the period.” (3) Gross additions include increases in the cost basis of investments resulting from new portfolio investments, follow-on investments and accrued PIK interest, and the exchange of one or more existing securities for one or more new securities. Gross additions also include net increases in unrealized appreciation or net decreases in net unrealized depreciation as well as the movement of an existing portfolio company into this category and out of a different category. (4) Gross reductions include decreases in the cost basis of investments resulting from principal repayments or sales and the exchange of one or more existing securities for one or more new securities. Gross reductions also include net increases in net unrealized depreciation or net decreases in unrealized appreciation as well as the movement of an existing portfolio company out of this category and into a different category. (5) Portfolio company located in the Midwest region as determined by location of the corporate headquarters. The fair value as of June 30, 2024 for control investments located in this region was $514,812. This represented 20.0% of net assets as of June 30, 2024. The fair value as of June 30, 2024 for affiliate investments located in this region was $199,928. This represented 7.8% of net assets as of June 30, 2024. (6) Portfolio company located in the Northeast region and Canada as determined by location of the corporate headquarters. The fair value as of June 30, 2024 for control investments located in this region was $294,943. This represented 11.4% of net assets as of June 30, 2024. The fair value as of June 30, 2024 for affiliate investments located in this region was $80,600. This represented 3.1% of net assets as of June 30, 2024. (7) Portfolio company located in the Southeast region as determined by location of the corporate headquarters. The fair value as of June 30, 2024 for control investments located in this region was $49,880. This represented 1.9% of net assets as of June 30, 2024. The fair value as of June 30, 2024 for affiliate investments located in this region was $171,957. This represented 6.7% of net assets as of June 30, 2024. (8) Portfolio company located in the Southwest region as determined by location of the corporate headquarters. The fair value as of June 30, 2024 for control investments located in this region was $826,500. This represented 32.0% of net assets as of June 30, 2024. The fair value as of June 30, 2024 for affiliate investments located in this region was $153,574. This represented 6.0% of net assets as of June 30, 2024. (9) Portfolio company located in the West region as determined by location of the corporate headquarters. The fair value as of June 30, 2024 for control investments located in this region was $389,294. This represented 15.1% of net assets as of June 30, 2024. The fair value as of June 30, 2024 for affiliate investments located in this region was $146,705. This represented 5.7% of net assets as of June 30, 2024. (10) All of the Company’s portfolio investments are generally subject to restrictions on resale as “restricted securities,” unless otherwise noted. (11) This schedule should be read in conjunction with the Consolidated Schedule of Investments and Notes to the Consolidated Financial Statements included in Item 1. Consolidated Financial Statements of this Quarterly Report on Form 10-Q. Supplemental information can be located within the Consolidated Schedule of Investments including end of period interest rate, preferred dividend rate, maturity date, investments not paid currently in cash and investments whose value was determined using significant unobservable inputs. (12) Investment has an unfunded commitment as of June 30, 2024 (see Note K ). The fair value of the investment includes the impact of the fair value of any unfunded commitments. (13) Negative fair value is the result of the capitalized discount being greater than the principal amount outstanding on the loan. Company Total Rate Base Rate Spread PIK Rate Type of Investment (1)(10)(11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, 2023 Majority-owned investments Analytical Systems Keco Holdings, LLC L+ 10.00% Secured Debt (8) $ — $ — $ 3 $ (3) $ 1 $ — $ (2) 15.25% L+ 10.00% Secured Debt (8) — — 379 4,545 39 140 4,444 14.13% Preferred Member Units (8) — — — — — — — Preferred Member Units (8) — 566 — 3,504 566 — 4,070 Warrants (8) — — — — — — — Brewer Crane Holdings, LLC 15.17% L+ 10.00% Secured Debt (9) — (63) 429 5,964 — 311 5,653 Preferred Member Units (9) — (720) 60 7,080 — 720 6,360 Café Brazil, LLC Member Units (8) — (80) 103 2,210 — 80 2,130 California Splendor Holdings LLC 15.25% L+ 10.00% Secured Debt (9) — (7) 2,127 28,000 7 7 28,000 Preferred Member Units (9) — (2,060) 125 25,495 — 2,060 23,435 15.00% 15.00% Preferred Member Units (9) — — 301 3,994 301 — 4,295 Clad-Rex Steel, LLC Secured Debt (12) (5) — — 1 — — — — 11.50% Secured Debt (5) — (64) 621 10,440 18 824 9,634 10.00% Secured Debt (5) — — 52 1,039 — 17 1,022 Member Units (5) — (1,840) 275 8,220 — 1,840 6,380 Member Units (5) — 220 — 610 519 — 1,129 CMS Minerals Investments Member Units (9) 99 (366) 44 1,670 99 1,769 — Cody Pools, Inc. Secured Debt (12) (8) — 12 2 — — — — 12.50% Secured Debt (8) — 39 582 — 46,312 — 46,312 L+ 10.50% Secured Debt (8) — (19) 96 1,462 32 1,494 — L+ 10.50% Secured Debt (8) — (280) 2,683 40,801 — 40,801 — Preferred Member Units (8) — 6,940 1,446 58,180 6,940 — 65,120 CompareNetworks Topco, LLC L+ 9.00% Secured Debt (9) — — — — — — — 14.25% L+ 9.00% Secured Debt (9) — (5) 355 5,241 5 377 4,869 Preferred Member Units (9) — (3,450) 158 19,830 — 3,450 16,380 Cybermedia Technologies, LLC Secured Debt (12) (6) — — 2 — — — — 13.00% Secured Debt (6) — — 1,042 — 28,720 — 28,720 Preferred Member Units (6) — — — — 15,000 — 15,000 Datacom, LLC 7.50% Secured Debt (8) — — 18 223 583 90 716 10.00% Secured Debt (8) — — 507 7,789 78 135 7,732 Preferred Member Units (8) — (320) — 2,670 — 320 2,350 Direct Marketing Solutions, Inc. Secured Debt (12) (9) — (14) 23 — 14 14 — 13.00% Secured Debt (9) — (35) 1,876 27,267 35 837 26,465 Preferred Stock (9) — 1,130 343 22,220 1,130 — 23,350 Elgin AcquireCo, LLC SF+ 6.00% Secured Debt (12) (5) — — 4 (9) 1 — (8) 12.00% Secured Debt (5) — — 1,151 18,594 19 — 18,613 9.00% Secured Debt (5) — — 287 6,294 1 21 6,274 Common Stock (5) — 364 — 7,603 364 1,877 6,090 Common Stock (5) — 112 — 1,558 112 — 1,670 Gamber-Johnson Holdings, LLC SF+ 8.50% Secured Debt (12) (5) — — 3 — — — — 11.00% SF+ 8.00% Secured Debt (5) — (64) 3,598 64,078 64 4,464 59,678 Member Units (5) — 19,270 2,904 50,890 19,270 — 70,160 GRT Rubber Technologies LLC 11.17% L+ 6.00% Secured Debt (12) (8) — — 66 670 630 — 1,300 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1)(10)(11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, 2023 13.17% L+ 8.00% Secured Debt (8) — (23) 2,624 40,493 23 23 40,493 Member Units (8) — — 84 44,440 — — 44,440 Gulf Publishing Holdings, LLC L+ 9.50% Secured Debt (12) (8) — — — — — — — 12.50% Secured Debt (8) — — 151 2,284 — — 2,284 Preferred Equity (8) — — — 3,780 — — 3,780 Member Units (8) — — — — — — — IG Investor, LLC Secured Debt (12) (6) — — 84 — 761 800 (39) 13.00% Secured Debt (6) — — 896 — 37,333 — 37,333 Common Equity (6) — — — — 15,096 — 15,096 Independent Pet Partners Intermediate Holdings, LLC Common Equity (6) — — — — 18,300 — 18,300 Jensen Jewelers of Idaho, LLC P+ 6.75% Secured Debt (12) (9) — — — — — — — 15.00% P+ 6.75% Secured Debt (9) — (3) 183 2,450 3 3 2,450 Member Units (9) — (1,460) 626 14,970 — 1,460 13,510 Kickhaefer Manufacturing Company, LLC 12.00% Secured Debt (5) — — 1,407 20,374 195 — 20,569 9.00% Secured Debt (5) — — 175 3,842 1 19 3,824 Preferred Equity (5) — 510 — 7,220 510 — 7,730 Member Units (5) — (70) 60 2,850 — 70 2,780 Market Force Information, LLC L+ 11.00% Secured Debt (9) (6,662) 163 453 6,090 804 6,894 — Secured Debt (9) (25,952) 24,342 — 1,610 24,342 25,952 — Member Units (9) (16,642) 16,642 — — 16,642 16,642 — MetalForming AcquireCo, LLC Secured Debt (12) (7) — — 5 — — — — 12.75% Secured Debt (7) — — 1,518 23,576 23 — 23,599 8.00% 8.00% Preferred Equity (7) — 118 148 6,010 235 — 6,245 Common Stock (7) — (137) 619 1,537 — 137 1,400 MH Corbin Holding LLC 13.00% Secured Debt (5) — 1,150 392 4,548 1,150 195 5,503 Preferred Member Units (5) — — — — — — — Preferred Member Units (5) — — — — — — — MSC Adviser I, LLC Member Units (8) — 11,040 5,916 122,930 11,040 — 133,970 Mystic Logistics Holdings, LLC Secured Debt (12) (6) — — 2 — — — — 10.00% Secured Debt (6) — — 289 5,746 — — 5,746 Common Stock (6) — 4,320 1,977 22,830 4,320 — 27,150 OMi Topco, LLC 12.00% Secured Debt (8) — (25) 952 15,750 25 1,525 14,250 Preferred Member Units (8) — 6,500 1,350 22,810 6,500 — 29,310 PPL RVs, Inc. L+ 8.75% Secured Debt (8) — (1) 1 — 1 1 — 13.63% L+ 8.75% Secured Debt (8) — (39) 1,365 21,655 39 1,404 20,290 Common Stock (8) — (880) 157 18,950 — 880 18,070 Common Stock (8) — 12 — 238 12 — 250 Principle Environmental, LLC Secured Debt (8) — — — — — — — 13.00% Secured Debt (8) — — 397 5,806 11 — 5,817 Preferred Member Units (8) — (1,940) 429 12,420 — 1,940 10,480 Common Stock (8) — (90) — 590 — 90 500 Quality Lease Service, LLC Member Units (7) — (98) — 525 33 98 460 Robbins Bros. Jewelry, Inc. Secured Debt (12) (9) — — 16 (35) 4 — (31) 12.50% Secured Debt (9) — (444) 2,255 35,404 40 1,119 34,325 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1)(10)(11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, 2023 Preferred Equity (9) — (8,740) — 14,880 — 8,740 6,140 Trantech Radiator Topco, LLC Secured Debt (12) (7) — (2) 4 — 2 2 — 12.00% Secured Debt (7) — (9) 487 7,920 9 9 7,920 Common Stock (7) — 3,970 58 7,800 3,970 — 11,770 Volusion, LLC 10.00% Secured Debt (8) — — 54 — 2,100 — 2,100 Secured Debt (8) (3,188) 1,821 166 14,914 — 14,914 — Unsecured Convertible Debt (8) (409) 409 — — 409 409 — Preferred Member Units (8) — — — — — — — Preferred Member Units (8) — (706) — — 11,446 706 10,740 Preferred Member Units (8) — — — — — — — Common Stock (8) — (2,576) — — 2,576 2,576 — Warrants (8) — 2,576 — — — — — Ziegler’s NYPD, LLC 12.00% Secured Debt (8) — — 27 450 — — 450 6.50% Secured Debt (8) — — 33 945 — — 945 14.00% Secured Debt (8) — (215) 194 2,676 — 215 2,461 Preferred Member Units (8) — (170) — 240 — 170 70 Warrants (8) — — — — — — — Other controlled investments 2717 MH, L.P. LP Interests (2717 MH, L.P.) (8) 1,677 (675) 141 7,552 2,077 3,283 6,346 LP Interests (2717 HPP-MS, L.P.) (12) (8) — 67 — 248 67 — 315 ASC Interests, LLC 13.00% Secured Debt (12) (8) — — 27 400 — — 400 13.00% Secured Debt (8) — (52) 108 1,649 — 52 1,597 Member Units (8) — (384) — 800 94 384 510 ATS Workholding, LLC 5.00% Secured Debt (9) — (277) — 634 126 277 483 5.00% Secured Debt (9) — (286) — 1,005 — 286 719 Preferred Member Units (9) — — — — — — — Barfly Ventures, LLC 7.00% Secured Debt (12) (5) — — 44 711 — — 711 Member Units (5) — (280) — 3,320 — 280 3,040 Batjer TopCo, LLC Secured Debt (12) (8) — 7 1 (8) 8 — — Secured Debt (12) (8) — — — — — — — 10.00% Secured Debt (8) — 78 583 10,933 92 450 10,575 Preferred Stock (8) — 2,055 574 4,095 2,055 — 6,150 Bolder Panther Group, LLC Secured Debt (9) — — 1 — — — — 14.37% SF+ 9.19% Secured Debt (9) — (71) 6,976 99,194 71 1,390 97,875 8.00% Class B Preferred Member Units (9) — (300) 2,137 31,420 — 300 31,120 Bridge Capital Solutions Corporation 13.00% Secured Debt (6) — — 576 8,813 — — 8,813 13.00% Secured Debt (6) — — 65 1,000 — — 1,000 Preferred Member Units (6) — — 50 1,000 — — 1,000 Warrants (6) — 46 — 1,828 46 — 1,874 Warrants (6) — 64 — 2,512 64 — 2,576 Company Total Rate Base Rate Spread PIK Rate Type of Investment (1)(10)(11) Geography Amount of Amount of Amount of December 31, Gross Gross June 30, 2023 CBT Nuggets, LLC Member Units (9) — 1,570 1,647 49,002 1,568 — 50,570 Centre Technologies Holdings, LLC L+ 9.00% Secured Debt (12) (8) — — 6 — — — — 14.25% L+ 9.00% Secured Debt (8) — 64 1,058 14,954 76 — 15,030 Preferred Member Units (8) — 1,700 60 8,700 1,700 — 10,400

SUMMARY OF SIGNIFICANT ACCOUN_4

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024 USD ($) company	Jun. 30, 2023 company	Jun. 30, 2024 USD ($)	Jun. 30, 2023	Jun. 30, 2024 USD ($) company	Dec. 31, 2023 USD ($)
Schedule of Investments [Line Items]
Cash equivalents | $	$ 6.6		$ 6.6		$ 6.6	$ 15.2
Cash exceeded federal deposit insurance corporation insurance protection levels | $	$ 19.8		$ 19.8		$ 19.8	$ 40.1
Percentage of total investment income, attributable to noncash paid-in-kind interest income (as a percent)	3.70%	1.80%	3.50%	2.10%
Percentage of total investment come, attributable to noncash cumulative dividend income (as a percent)	0.50%	0.20%	0.40%	0.30%
Percentage of total investment income, attributable to interest income, debt investments, net (as a percent)	2%	1.80%	1.90%	1.80%
Investment Owned, At Fair Value | Investment Type Concentration Risk
Schedule of Investments [Line Items]
Concentration risk (as a percent)			100%			100%
Investment Owned, At Cost | Investment Type Concentration Risk
Schedule of Investments [Line Items]
Concentration risk (as a percent)			100%			100%
Non-accrual Status | Investment Owned, At Fair Value | Investment Type Concentration Risk
Schedule of Investments [Line Items]
Concentration risk (as a percent)			1.20%			0.60%
Non-accrual Status | Investment Owned, At Cost | Investment Type Concentration Risk
Schedule of Investments [Line Items]
Concentration risk (as a percent)			3.60%			2.30%
Revolving Credit Facility | Line of Credit
Schedule of Investments [Line Items]
Commitment fee (as a percentage)			3.40%
LMM portfolio investments
Schedule of Investments [Line Items]
Consultation period subsequent to initial investment (in months)			12 months
Investment company, number of portfolio companies with annual third-party appraisal was obtained, reviewed and certified | company	18	18			70
Percentage of portfolio with annual third-party appraisal was obtained, reviewed and certified (as a percent)					99%
LMM portfolio investments | Investment Owned, At Fair Value | Investment Type Concentration Risk
Schedule of Investments [Line Items]
Concentration risk (as a percent)	21%	23%			94%
Private Loan portfolio investments
Schedule of Investments [Line Items]
Consultation period subsequent to initial investment (in months)			12 months
Investment company, number of portfolio companies with annual third-party appraisal was obtained, reviewed and certified | company	19	15			60
Percentage of portfolio with annual third-party appraisal was obtained, reviewed and certified (as a percent)					95%
Private Loan portfolio investments | Investment Owned, At Fair Value | Investment Type Concentration Risk
Schedule of Investments [Line Items]
Concentration risk (as a percent)	22%	24%			72%
Middle Market portfolio investments
Schedule of Investments [Line Items]
Percentage of portfolio investments containing limited consultation with financial advisory services firm (as a percent)	98%		98%		98%	98%
Other Portfolio investments | Investment Owned, At Fair Value | Investment Type Concentration Risk
Schedule of Investments [Line Items]
Concentration risk (as a percent)			3.80%			3.30%
Other Portfolio investments | Investment Owned, At Cost | Investment Type Concentration Risk
Schedule of Investments [Line Items]
Concentration risk (as a percent)			4.30%			4%

SUMMARY OF SIGNIFICANT ACCOUN_5

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Investment Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Accounting Policies [Abstract]
Interest income	$ 100,031	$ 97,273	$ 200,136	$ 190,666
Dividend income	26,688	25,599	49,479	49,821
Fee income	5,435	4,711	14,144	7,351
Total interest, fee and dividend income	$ 132,154	$ 127,583	$ 263,759	$ 247,838

FAIR VALUE HIERARCHY FOR INVE_3

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Narrative (Details) $ in Thousands	3 Months Ended			6 Months Ended			12 Months Ended
	Jun. 30, 2024 USD ($) investment entity		Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) investment entity		Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) investment entity		Dec. 31, 2023 USD ($) investment entity
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Expenses allocated	$ 5,887		$ 5,688	$ 11,446		$ 10,686
Annualized total return on investments (as a percent)	0.157		0.167	0.162		0.151
Achieved total return on investments (as a percent)									0.163
Fair value	$ 4,737,511	[1]		$ 4,737,511	[1]		$ 4,737,511	[1]	$ 4,286,271	[2]
Cost	4,114,074	[3]		$ 4,114,074	[3]		$ 4,114,074	[3]	$ 3,725,960	[4]
Investment Owned, At Fair Value | Investment Type Concentration Risk
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Concentration risk (as a percent)				100%					100%
Investment Owned, At Cost | Investment Type Concentration Risk
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Concentration risk (as a percent)				100%					100%
Affiliated Entity | External Investment Manager
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Expenses allocated	$ 5,900		$ 5,700	$ 11,400		$ 10,700
Short-term portfolio investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of portfolio investments | investment	0			0			0		0
Short-term portfolio investments | Maximum | Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment term (in years)				1 year
LMM portfolio investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	$ 2,440,000			$ 2,440,000			$ 2,440,000		$ 2,273,000
Cost	$ 1,920,900			$ 1,920,900			$ 1,920,900		$ 1,782,900
LMM portfolio investments | Investment Owned, At Fair Value | Investment Type Concentration Risk
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Concentration risk (as a percent)	21%		23%				94%
LMM portfolio investments | Debt | Investment Owned, At Cost | Investment Type Concentration Risk
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Concentration risk (as a percent)				72.60%					72%
LMM portfolio investments | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Annual revenues				$ 10,000
Investments	$ 5,000			$ 5,000			$ 5,000
LMM portfolio investments | Minimum | Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment term (in years)				5 years
LMM portfolio investments | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Annual revenues				$ 150,000
Investments	100,000			$ 100,000			100,000
LMM portfolio investments | Maximum | Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment term (in years)				7 years
Private Loan portfolio investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	1,747,500			$ 1,747,500			1,747,500		$ 1,453,500
Cost	$ 1,768,000			$ 1,768,000			$ 1,768,000		$ 1,470,100
Private Loan portfolio investments | Investment Owned, At Fair Value | Investment Type Concentration Risk
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Concentration risk (as a percent)	22%		24%				72%
Private Loan portfolio investments | Debt | Investment Owned, At Cost | Investment Type Concentration Risk
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Concentration risk (as a percent)				95.40%					94.70%
Private Loan portfolio investments | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments	$ 10,000			$ 10,000			$ 10,000
Private Loan portfolio investments | Minimum | Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment term (in years)				3 years
Private Loan portfolio investments | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments	100,000			$ 100,000			100,000
Private Loan portfolio investments | Maximum | Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment term (in years)				7 years
Middle Market portfolio investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	184,000			$ 184,000			184,000		$ 243,700
Cost	220,600			$ 220,600			220,600		$ 294,400
Middle Market portfolio investments | Debt | Investment Owned, At Cost | Investment Type Concentration Risk
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Concentration risk (as a percent)				88.30%					91.40%
Middle Market portfolio investments | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Annual revenues				$ 150,000
Investments	3,000			$ 3,000			3,000
Middle Market portfolio investments | Minimum | Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment term (in years)				3 years
Middle Market portfolio investments | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Annual revenues				$ 1,500,000
Investments	$ 25,000			$ 25,000			$ 25,000
Middle Market portfolio investments | Maximum | Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment term (in years)				7 years
Other Portfolio investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of portfolio investments in entities | entity	14			14			14		15
Fair value	$ 179,500			$ 179,500			$ 179,500		$ 142,000
Cost	175,000			$ 175,000			175,000		$ 149,100
Other Portfolio investments | Investment Owned, At Fair Value | Investment Type Concentration Risk
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Concentration risk (as a percent)				3.80%					3.30%
Other Portfolio investments | Investment Owned, At Cost | Investment Type Concentration Risk
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Concentration risk (as a percent)				4.30%					4%
Other Portfolio investments | Minimum | Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment term (in years)				5 years
Other Portfolio investments | Maximum | Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment term (in years)				10 years
External Investment Manager
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value	186,600			$ 186,600			186,600		$ 174,100
Cost	$ 29,500			$ 29,500			$ 29,500		$ 29,500
External Investment Manager | Investment Owned, At Fair Value | Investment Type Concentration Risk
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Concentration risk (as a percent)				3.90%					4.10%
External Investment Manager | Investment Owned, At Cost | Investment Type Concentration Risk
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Concentration risk (as a percent)				0.70%					0.80%
[1] Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. Principal is net of repayments. Cost is net of repayments and accumulated unearned income. Negative cost is the result of the capitalized discount being greater than the principal amount outstanding on the loan. Principal is net of repayments. Cost is net of repayments and accumulated unearned income. Negative cost is the result of the capitalized discount being greater than the principal amount outstanding on the loan.

FAIR VALUE HIERARCHY FOR INVE_4

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Schedule of Level 3 Portfolio Investments (Details) $ in Thousands	Jun. 30, 2024 USD ($)		Dec. 31, 2023 USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Level 3 investments	$ 4,737,511	[1]	$ 4,286,271	[2]
Significant Unobservable Inputs (Level 3)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Level 3 investments	$ 4,737,511		$ 4,286,271
Significant Unobservable Inputs (Level 3) | EBITDA multiple, outlier | Minimum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	2		2
Significant Unobservable Inputs (Level 3) | EBITDA multiple, outlier | Maximum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	15.7		15.7
Significant Unobservable Inputs (Level 3) | Risk adjusted discount factor, outlier | Minimum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.050		0.070
Significant Unobservable Inputs (Level 3) | Risk adjusted discount factor, outlier | Maximum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.317		0.316
Significant Unobservable Inputs (Level 3) | Market comparable / Enterprise value | Fee multiple | External Investment Manager | Related Party
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	7.1		7.2
Significant Unobservable Inputs (Level 3) | Equity investments | Discounted cash flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Level 3 investments	$ 1,498,912		$ 1,402,354
Significant Unobservable Inputs (Level 3) | Equity investments | Discounted cash flow | WACC | Minimum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.092		0.097
Significant Unobservable Inputs (Level 3) | Equity investments | Discounted cash flow | WACC | Maximum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.229		0.227
Significant Unobservable Inputs (Level 3) | Equity investments | Discounted cash flow | WACC | Weighted Average
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.142		0.145
Significant Unobservable Inputs (Level 3) | Equity investments | Discounted cash flow | WACC | Median
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.151		0.155
Significant Unobservable Inputs (Level 3) | Equity investments | Market comparable / Enterprise value | EBITDA multiple | Minimum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	4.5		4.8
Significant Unobservable Inputs (Level 3) | Equity investments | Market comparable / Enterprise value | EBITDA multiple | Maximum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	8.9		8.9
Significant Unobservable Inputs (Level 3) | Equity investments | Market comparable / Enterprise value | EBITDA multiple | Weighted Average
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	7.1		7.1
Significant Unobservable Inputs (Level 3) | Equity investments | Market comparable / Enterprise value | EBITDA multiple | Median
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	6.3		6.4
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Level 3 investments	$ 3,103,832		$ 2,720,425
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow | Risk adjusted discount factor | Minimum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.096		0.098
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow | Risk adjusted discount factor | Maximum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.184		0.180
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow | Risk adjusted discount factor | Weighted Average
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.129		0.129
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow | Risk adjusted discount factor | Median
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.130		0.130
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow | Expected principal recovery percentage | Minimum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0		0
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow | Expected principal recovery percentage | Maximum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	1		1
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow | Expected principal recovery percentage | Weighted Average
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.994		0.997
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow | Expected principal recovery percentage | Median
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	1		1
Significant Unobservable Inputs (Level 3) | Debt investments | Market approach
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Level 3 investments	$ 134,767		$ 163,492
Significant Unobservable Inputs (Level 3) | Debt investments | Market approach | Third-party quote | Minimum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	40.8		3
Significant Unobservable Inputs (Level 3) | Debt investments | Market approach | Third-party quote | Maximum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	101		100
Significant Unobservable Inputs (Level 3) | Debt investments | Market approach | Third-party quote | Weighted Average
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	92.7		89.8
Significant Unobservable Inputs (Level 3) | Debt investments | Market approach | Third-party quote | Median
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	97.9		92.4
[1] Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par.

FAIR VALUE HIERARCHY FOR INVE_5

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Schedule of Changes in Fair Value of Level 3 Portfolio Investments (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 4,286,271	$ 4,100,273
Transfers Into Level 3 Hierarchy	0	0
Redemptions/ Repayments	(434,678)	(456,249)
New Investments	822,792	427,160
Other	0	0
Ending balance	4,737,511	4,210,543
Investments | Net Changes from Unrealized to Realized
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Gain (loss) included in earnings	6,508	104,290
Investments | Net Unrealized Appreciation (Depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Gain (loss) included in earnings	56,618	35,069
Debt
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	2,883,917	2,928,196
Transfers Into Level 3 Hierarchy	0	0
Redemptions/ Repayments	(406,233)	(421,050)
New Investments	753,750	376,859
Other	18,859	(29,746)
Ending balance	3,238,599	2,931,033
Debt | Net Changes from Unrealized to Realized
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Gain (loss) included in earnings	7,468	100,164
Debt | Net Unrealized Appreciation (Depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Gain (loss) included in earnings	(19,162)	(23,390)
Equity
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	1,395,744	1,166,643
Transfers Into Level 3 Hierarchy	0	0
Redemptions/ Repayments	(28,445)	(35,199)
New Investments	65,122	48,210
Other	(18,859)	32,322
Ending balance	1,487,993	1,272,460
Equity | Net Changes from Unrealized to Realized
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Gain (loss) included in earnings	(960)	4,126
Equity | Net Unrealized Appreciation (Depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Gain (loss) included in earnings	75,391	56,358
Equity Warrant
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	6,610	5,434
Transfers Into Level 3 Hierarchy	0	0
Redemptions/ Repayments	0	0
New Investments	3,920	2,091
Other	0	(2,576)
Ending balance	10,919	7,050
Equity Warrant | Net Changes from Unrealized to Realized
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Gain (loss) included in earnings	0	0
Equity Warrant | Net Unrealized Appreciation (Depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Gain (loss) included in earnings	$ 389	$ 2,101

FAIR VALUE HIERARCHY FOR INVE_6

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Schedule of Fair Value Hierarchy (Details) - USD ($) $ in Thousands	Jun. 30, 2024		Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	$ 4,737,511	[1]	$ 4,286,271	[2]
Fair Value, Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	4,737,511		4,286,271
Fair Value, Recurring | LMM portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	2,439,993		2,273,000
Fair Value, Recurring | Private Loan portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	1,747,502		1,453,549
Fair Value, Recurring | Middle Market portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	183,965		243,695
Fair Value, Recurring | Other Portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	179,491		141,964
Fair Value, Recurring | External Investment Manager
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	186,560		174,063
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	0		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Recurring | LMM portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	0		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Recurring | Private Loan portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	0		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Recurring | Middle Market portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	0		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Recurring | Other Portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	0		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Recurring | External Investment Manager
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	0		0
Significant Other Observable Inputs (Level 2) | Fair Value, Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	0		0
Significant Other Observable Inputs (Level 2) | Fair Value, Recurring | LMM portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	0		0
Significant Other Observable Inputs (Level 2) | Fair Value, Recurring | Private Loan portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	0		0
Significant Other Observable Inputs (Level 2) | Fair Value, Recurring | Middle Market portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	0		0
Significant Other Observable Inputs (Level 2) | Fair Value, Recurring | Other Portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	0		0
Significant Other Observable Inputs (Level 2) | Fair Value, Recurring | External Investment Manager
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	0		0
Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	4,737,511		4,286,271
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	4,737,511		4,286,271
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | LMM portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	2,439,993		2,273,000
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Private Loan portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	1,747,502		1,453,549
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Middle Market portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	183,965		243,695
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | Other Portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	179,491		141,964
Significant Unobservable Inputs (Level 3) | Fair Value, Recurring | External Investment Manager
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	$ 186,560		$ 174,063
[1] Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par.

FAIR VALUE HIERARCHY FOR INVE_7

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Schedule of Investments (Details) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2024 USD ($) company		Dec. 31, 2023 USD ($) company
Summary of Investment Holdings [Line Items]
Fair value	$ 4,737,511	[1]	$ 4,286,271	[2]
Cost	$ 4,114,074	[3]	$ 3,725,960	[4]
Investment Owned, At Cost | Investment Type Concentration Risk
Summary of Investment Holdings [Line Items]
Concentration risk (as a percent)	100%		100%
Non-accrual Status | Investment Owned, At Cost | Investment Type Concentration Risk
Summary of Investment Holdings [Line Items]
Concentration risk (as a percent)	3.60%		2.30%
Equity | Investment Owned, At Cost | Investment Type Concentration Risk
Summary of Investment Holdings [Line Items]
Concentration risk (as a percent)	15.90%		16.80%
First lien debt | Investment Owned, At Cost | Investment Type Concentration Risk
Summary of Investment Holdings [Line Items]
Concentration risk (as a percent)	83.50%		82.70%
LMM portfolio investments
Summary of Investment Holdings [Line Items]
Number of portfolio companies | company	83		80
Fair value	$ 2,440,000		$ 2,273,000
Cost	$ 1,920,900		$ 1,782,900
Weighted-average annual effective yield (as a percent)	13%		13%
Average EBITDA	$ 9,300		$ 8,200
Diluted equity ownership (as a percent)	39%		40%
Investment company, number of companies within portfolio excluded from EBITDA calculation | company	4		2
LMM portfolio investments | Non-accrual Status
Summary of Investment Holdings [Line Items]
Weighted-average annual effective yield (as a percent)	12.50%		12.90%
LMM portfolio investments | Debt | Investment Owned, At Cost | Investment Type Concentration Risk
Summary of Investment Holdings [Line Items]
Concentration risk (as a percent)	72.60%		72%
LMM portfolio investments | Equity | Investment Owned, At Cost | Investment Type Concentration Risk
Summary of Investment Holdings [Line Items]
Concentration risk (as a percent)	27.40%		28%
LMM portfolio investments | First lien debt | Investment Owned, At Cost | Investment Type Concentration Risk
Summary of Investment Holdings [Line Items]
Concentration risk (as a percent)	99.20%		99.20%
Private Loan portfolio investments
Summary of Investment Holdings [Line Items]
Number of portfolio companies | company	92		87
Fair value	$ 1,747,500		$ 1,453,500
Cost	$ 1,768,000		$ 1,470,100
Weighted-average annual effective yield (as a percent)	12.80%		12.90%
Average EBITDA	$ 32,300		$ 27,200
Investment company, number of companies within portfolio excluded from EBITDA calculation | company	4		2
Private Loan portfolio investments | Non-accrual Status
Summary of Investment Holdings [Line Items]
Weighted-average annual effective yield (as a percent)	12.40%		12.50%
Private Loan portfolio investments | Debt | Investment Owned, At Cost | Investment Type Concentration Risk
Summary of Investment Holdings [Line Items]
Concentration risk (as a percent)	95.40%		94.70%
Private Loan portfolio investments | Equity | Investment Owned, At Cost | Investment Type Concentration Risk
Summary of Investment Holdings [Line Items]
Concentration risk (as a percent)	4.60%		5.30%
Private Loan portfolio investments | First lien debt | Investment Owned, At Cost | Investment Type Concentration Risk
Summary of Investment Holdings [Line Items]
Concentration risk (as a percent)	99.90%		100%
Middle Market portfolio investments
Summary of Investment Holdings [Line Items]
Number of portfolio companies | company	19		23
Fair value	$ 184,000		$ 243,700
Cost	$ 220,600		$ 294,400
Weighted-average annual effective yield (as a percent)	13%		12.50%
Average EBITDA	$ 57,700		$ 64,200
Investment company, number of companies within portfolio excluded from EBITDA calculation | company	3
Middle Market portfolio investments | Non-accrual Status
Summary of Investment Holdings [Line Items]
Weighted-average annual effective yield (as a percent)	11%		10.80%
Middle Market portfolio investments | Debt | Investment Owned, At Cost | Investment Type Concentration Risk
Summary of Investment Holdings [Line Items]
Concentration risk (as a percent)	88.30%		91.40%
Middle Market portfolio investments | Equity | Investment Owned, At Cost | Investment Type Concentration Risk
Summary of Investment Holdings [Line Items]
Concentration risk (as a percent)	11.70%		8.60%
Middle Market portfolio investments | First lien debt | Investment Owned, At Cost | Investment Type Concentration Risk
Summary of Investment Holdings [Line Items]
Concentration risk (as a percent)	98.60%		99.10%
[1] Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. Principal is net of repayments. Cost is net of repayments and accumulated unearned income. Negative cost is the result of the capitalized discount being greater than the principal amount outstanding on the loan. Principal is net of repayments. Cost is net of repayments and accumulated unearned income. Negative cost is the result of the capitalized discount being greater than the principal amount outstanding on the loan.

FAIR VALUE HIERARCHY FOR INVE_8

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Schedule of Percentage of Portfolio Investments by Type of Investment (Details) - Investment Type Concentration Risk	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Investment Owned, At Cost
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	100%	100%
Investment Owned, At Cost | First lien debt
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	83.50%	82.70%
Investment Owned, At Cost | Equity
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	15.90%	16.80%
Investment Owned, At Cost | Second lien debt
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	0.10%	0.10%
Investment Owned, At Cost | Equity warrants
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	0.30%	0.20%
Investment Owned, At Cost | Other
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	0.20%	0.20%
Investment Owned, At Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	100%	100%
Investment Owned, At Fair Value | First lien debt
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	72.40%	71.60%
Investment Owned, At Fair Value | Equity
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	27%	27.80%
Investment Owned, At Fair Value | Second lien debt
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	0.20%	0.20%
Investment Owned, At Fair Value | Equity warrants
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	0.20%	0.20%
Investment Owned, At Fair Value | Other
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	0.20%	0.20%

FAIR VALUE HIERARCHY FOR INVE_9

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Schedule of Percentage of Portfolio Investments by Geographical Regions (Details) - Geographic Concentration Risk	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Investment Owned, At Cost
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	100%	100%
Investment Owned, At Cost | West
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	24.40%	25.80%
Investment Owned, At Cost | Northeast
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	22.60%	22.30%
Investment Owned, At Cost | Midwest
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	21%	17%
Investment Owned, At Cost | Southwest
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	16.30%	19.70%
Investment Owned, At Cost | Southeast
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	13.90%	13.10%
Investment Owned, At Cost | Canada
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	0.30%	0.40%
Investment Owned, At Cost | Other Non-United States
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1.50%	1.70%
Investment Owned, At Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	100%	100%
Investment Owned, At Fair Value | West
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	23.70%	25.40%
Investment Owned, At Fair Value | Northeast
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	21.70%	21.30%
Investment Owned, At Fair Value | Midwest
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	21.70%	18.10%
Investment Owned, At Fair Value | Southwest
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	19.30%	22%
Investment Owned, At Fair Value | Southeast
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	11.90%	11.30%
Investment Owned, At Fair Value | Canada
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	0.30%	0.30%
Investment Owned, At Fair Value | Other Non-United States
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1.40%	1.60%

FAIR VALUE HIERARCHY FOR INV_10

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Schedule of Percentage of Portfolio Investments by Industry Sector (Details) - Industry Concentration Risk	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Investment Owned, At Cost
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	100%	100%
Investment Owned, At Cost | Professional Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	7.30%	6%
Investment Owned, At Cost | Machinery
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	6.90%	7.70%
Investment Owned, At Cost | Internet Software & Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	6.10%	7.60%
Investment Owned, At Cost | Electrical Equipment
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	5.20%	1.60%
Investment Owned, At Cost | Health Care Providers & Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	5%	5.40%
Investment Owned, At Cost | Commercial Services & Supplies
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	4.60%	4.50%
Investment Owned, At Cost | Diversified Consumer Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	4.60%	4.90%
Investment Owned, At Cost | Auto Components
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	4.20%	1.60%
Investment Owned, At Cost | Distributors
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	4.20%	4.30%
Investment Owned, At Cost | Construction & Engineering
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	4.10%	4.90%
Investment Owned, At Cost | IT Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	4%	5%
Investment Owned, At Cost | Containers & Packaging
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	3.90%	3.80%
Investment Owned, At Cost | Energy Equipment & Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	3.20%	2.70%
Investment Owned, At Cost | Tobacco
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	3%	3.10%
Investment Owned, At Cost | Textiles, Apparel & Luxury Goods
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	2.90%	3.20%
Investment Owned, At Cost | Aerospace & Defense
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	2.70%	2.90%
Investment Owned, At Cost | Leisure Equipment & Products
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	2.50%	3.10%
Investment Owned, At Cost | Specialty Retail
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	2.40%	2.10%
Investment Owned, At Cost | Computers & Peripherals
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	2.30%	2.70%
Investment Owned, At Cost | Software
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	2%	2%
Investment Owned, At Cost | Diversified Financial Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1.80%	1.70%
Investment Owned, At Cost | Media
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1.80%	2.40%
Investment Owned, At Cost | Building Products
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1.60%	1.70%
Investment Owned, At Cost | Food Products
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1.60%	1.60%
Investment Owned, At Cost | Food & Staples Retailing
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1.50%	1.60%
Investment Owned, At Cost | Electronic Equipment, Instruments & Components
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1.40%	1.50%
Investment Owned, At Cost | Health Care Equipment & Supplies
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1.20%	1.30%
Investment Owned, At Cost | Internet & Catalog Retail
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1.20%	1.30%
Investment Owned, At Cost | Communications Equipment
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1.10%	1.20%
Investment Owned, At Cost | Hotels, Restaurants & Leisure
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1%	1.10%
Investment Owned, At Cost | Chemicals
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	0.90%	1%
Investment Owned, At Cost | Household Products
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	0.90%	1%
Investment Owned, At Cost | Other
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	2.90%	3.50%
Investment Owned, At Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	100%	100%
Investment Owned, At Fair Value | Professional Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	7.70%	6.50%
Investment Owned, At Fair Value | Machinery
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	8.40%	8.80%
Investment Owned, At Fair Value | Internet Software & Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	5.10%	6.20%
Investment Owned, At Fair Value | Electrical Equipment
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	4.80%	1.70%
Investment Owned, At Fair Value | Health Care Providers & Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	4.70%	5%
Investment Owned, At Fair Value | Commercial Services & Supplies
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	4%	3.90%
Investment Owned, At Fair Value | Diversified Consumer Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	6.60%	7.10%
Investment Owned, At Fair Value | Auto Components
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	3.70%	1.50%
Investment Owned, At Fair Value | Distributors
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	4.40%	4.50%
Investment Owned, At Fair Value | Construction & Engineering
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	4.40%	5.10%
Investment Owned, At Fair Value | IT Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	3.80%	4.60%
Investment Owned, At Fair Value | Containers & Packaging
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	4%	3.90%
Investment Owned, At Fair Value | Energy Equipment & Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	3.10%	2.50%
Investment Owned, At Fair Value | Tobacco
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	3.10%	3.20%
Investment Owned, At Fair Value | Textiles, Apparel & Luxury Goods
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	2%	2.60%
Investment Owned, At Fair Value | Aerospace & Defense
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	2.50%	2.70%
Investment Owned, At Fair Value | Leisure Equipment & Products
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1.80%	2.50%
Investment Owned, At Fair Value | Specialty Retail
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	2.80%	2.70%
Investment Owned, At Fair Value | Computers & Peripherals
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	4.10%	4.40%
Investment Owned, At Fair Value | Software
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	2.10%	2.10%
Investment Owned, At Fair Value | Diversified Financial Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1.70%	1.60%
Investment Owned, At Fair Value | Media
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	2.10%	2.70%
Investment Owned, At Fair Value | Building Products
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1.40%	1.50%
Investment Owned, At Fair Value | Food Products
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1.50%	1.50%
Investment Owned, At Fair Value | Food & Staples Retailing
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1.10%	1.20%
Investment Owned, At Fair Value | Health Care Equipment & Supplies
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	0.90%	1%
Investment Owned, At Fair Value | Internet & Catalog Retail
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1%	1.20%
Investment Owned, At Fair Value | Other
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	5.30%	5.70%
Investment Owned, At Fair Value | Air Freight & Logistics
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	1%	1.10%
Investment Owned, At Fair Value | Construction Materials
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk (as a percent)	0.90%	1%

EXTERNAL INVESTMENT MANAGER - N

EXTERNAL INVESTMENT MANAGER - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Related Party Transaction [Line Items]
Net investment income	$ 87,300	$ 85,728	$ 177,106	$ 166,694
External Investment Manager
Related Party Transaction [Line Items]
Net investment income	$ 9,200	$ 8,500	$ 17,800	$ 16,600
External Investment Manager | Advisory Agreement | Affiliated Entity
Related Party Transaction [Line Items]
Management and service fees (as a percent)			1.75%
Management and service fees, incentive rate (as a percent)			20%

EXTERNAL INVESTMENT MANAGER - S

EXTERNAL INVESTMENT MANAGER - Schedule of Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
Investment Company, Nonconsolidated Subsidiary [Line Items]
Total assets	$ 4,957,335		$ 4,443,570
Dividend payable to MSCC and its subsidiaries	21,205		20,368
Equity	2,578,956	$ 2,515,970	2,477,399	$ 2,254,948	$ 2,172,922	$ 2,108,586
Total liabilities and net assets	4,957,335		4,443,570
External Investment Manager
Investment Company, Nonconsolidated Subsidiary [Line Items]
Accounts receivable - advisory clients	9,831		10,777
Intangible Asset	29,500		29,500
Total assets	39,331		40,277
Accounts payable to MSCC and its subsidiaries	6,519		7,551
Dividend payable to MSCC and its subsidiaries	3,312		3,226
Equity	29,500		29,500
Total liabilities and net assets	$ 39,331		$ 40,277

EXTERNAL INVESTMENT MANAGER -_2

EXTERNAL INVESTMENT MANAGER - Schedule of Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Investment Company, Nonconsolidated Subsidiary [Line Items]
Total expenses	$ (44,854)		$ (41,855)		$ (86,653)	$ (81,144)
Tax expense	(11,070)		(8,647)		(22,010)	(16,760)
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS	102,688	$ 107,147	106,516	$ 79,592	209,835	186,107
External Investment Manager
Investment Company, Nonconsolidated Subsidiary [Line Items]
Total revenues	10,162		9,358		19,901	18,283
Salaries, share-based compensation and other personnel costs	(5,021)		(4,897)		(9,855)	(9,165)
Other G&A expenses	(866)		(791)		(1,591)	(1,521)
Total allocated expenses	(5,887)		(5,688)		(11,446)	(10,686)
Other direct G&A expenses	(15)		0		(24)	0
Total expenses	(5,902)		(5,688)		(11,470)	(10,686)
Pre-tax income	4,260		3,670		8,431	7,597
Tax expense	(948)		(811)		(2,118)	(1,683)
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS	3,312		2,859		6,313	5,914
External Investment Manager | Management fee income
Investment Company, Nonconsolidated Subsidiary [Line Items]
Total revenues	5,886		5,544		11,603	11,014
External Investment Manager | Incentive fees
Investment Company, Nonconsolidated Subsidiary [Line Items]
Total revenues	4,117		3,663		7,983	6,967
External Investment Manager | Administrative services fees
Investment Company, Nonconsolidated Subsidiary [Line Items]
Total revenues	$ 159		$ 151		$ 315	$ 302

DEBT - Schedule of Debt (Detail

DEBT - Schedule of Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Outstanding Balance	$ 2,211,200	$ 1,810,000
Unamortized Debt Issuance (Costs)/ Premiums	(13,132)	(7,656)
Recorded Value	2,198,068	1,802,344
Estimated Fair Value	2,125,622	1,704,974
July 2026 Notes | Unsecured Notes
Debt Instrument [Line Items]
Outstanding Balance	500,000	500,000
Unamortized Debt Issuance (Costs)/ Premiums	(1,075)	(1,338)
Recorded Value	498,925	498,662
Estimated Fair Value	467,950	458,105
March 2029 Notes | Unsecured Notes
Debt Instrument [Line Items]
Outstanding Balance	350,000
Unamortized Debt Issuance (Costs)/ Premiums	(3,358)
Recorded Value	346,642	0
Estimated Fair Value	353,654
May 2024 Notes | Unsecured Notes
Debt Instrument [Line Items]
Outstanding Balance		450,000
Unamortized Debt Issuance (Costs)/ Premiums		182
Recorded Value	0	450,182
Estimated Fair Value		447,246
June 2027 Notes | Unsecured Notes
Debt Instrument [Line Items]
Outstanding Balance	300,000
Unamortized Debt Issuance (Costs)/ Premiums	(2,340)
Recorded Value	297,660	0
Estimated Fair Value	300,081
SBIC Debentures | Unsecured Notes
Debt Instrument [Line Items]
Outstanding Balance	286,200	350,000
Unamortized Debt Issuance (Costs)/ Premiums	(5,583)	(5,465)
Recorded Value	280,617	344,535
Estimated Fair Value	229,680	288,468
December 2025 Notes | Unsecured Notes
Debt Instrument [Line Items]
Outstanding Balance	150,000	150,000
Unamortized Debt Issuance (Costs)/ Premiums	(776)	(1,035)
Recorded Value	149,224	148,965
Estimated Fair Value	149,257	151,155
Credit Facility | Line of Credit
Debt Instrument [Line Items]
Recorded Value	625,000	360,000
Credit Facility | Corporate Facility | Line of Credit
Debt Instrument [Line Items]
Outstanding Balance	465,000	200,000
Unamortized Debt Issuance (Costs)/ Premiums	0	0
Recorded Value	465,000	200,000
Estimated Fair Value	465,000	200,000
Credit Facility | SPV Facility | Line of Credit
Debt Instrument [Line Items]
Outstanding Balance	160,000	160,000
Unamortized Debt Issuance (Costs)/ Premiums	0	0
Recorded Value	160,000	160,000
Estimated Fair Value	$ 160,000	$ 160,000

DEBT - Schedule of Interest Exp

DEBT - Schedule of Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Debt Instrument [Line Items]
Total Interest Expense	$ 29,161	$ 26,754	$ 55,937	$ 51,752
July 2026 Notes | Unsecured Notes
Debt Instrument [Line Items]
Total Interest Expense	3,882	3,882	7,763	7,763
May 2024 Notes | Unsecured Notes
Debt Instrument [Line Items]
Total Interest Expense	1,905	5,714	7,618	11,427
March 2029 Notes | Unsecured Notes
Debt Instrument [Line Items]
Total Interest Expense	6,261	0	11,747	0
June 2027 Notes | Unsecured Notes
Debt Instrument [Line Items]
Total Interest Expense	1,473	0	1,473	0
SBIC Debentures | Unsecured Notes
Debt Instrument [Line Items]
Total Interest Expense	2,273	2,718	4,979	5,470
December 2025 Notes | Unsecured Notes
Debt Instrument [Line Items]
Total Interest Expense	3,031	3,031	6,061	5,643
Credit Facility | Corporate Facility | Line of Credit
Debt Instrument [Line Items]
Total Interest Expense	7,240	7,898	11,522	14,508
Credit Facility | SPV Facility | Line of Credit
Debt Instrument [Line Items]
Total Interest Expense	$ 3,096	$ 3,511	$ 4,774	$ 6,941

DEBT - Corporate Facility (Deta

DEBT - Corporate Facility (Details) - Line of Credit - Revolving Credit Facility - USD ($)		1 Months Ended	3 Months Ended		6 Months Ended
	May 31, 2024	Jun. 30, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Corporate Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 995,000,000	$ 1,110,000,000	$ 1,110,000,000		$ 1,110,000,000
Line of credit facility, maximum borrowing capacity including accordion feature	$ 1,400,000,000	$ 1,665,000,000
Line of credit facility, unused capacity, commitment fee (as a percent)					0.25%
Interest rate (as a percent)		7.30%	7.30%		7.30%
Average interest rate (as a percent)			7.30%	7%	7.30%	6.70%
Corporate Facility | SOFR
Line of Credit Facility [Line Items]
Debt instrument, credit spread adjustment (as a percent)					0.10%
Corporate Facility | Minimum | Prime Rate | Variable Rate Component One
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate (as a percent)					0.875%
Corporate Facility | Minimum | SOFR | Variable Rate Component One
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate (as a percent)					1.875%
Corporate Facility | Maximum | Variable Rate Component Two
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate (as a percent)					2%
Corporate Facility | Maximum | Prime Rate | Variable Rate Component Two
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate (as a percent)					1%
Corporate Facility, June 2028 and June 2029
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 1,035,000,000	$ 1,035,000,000		$ 1,035,000,000
Corporate Facility, August 2026 and August 2027
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 75,000,000	$ 75,000,000		$ 75,000,000

DEBT - SPV Facility (Details)

DEBT - SPV Facility (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2024 USD ($) lender	Jun. 30, 2023	Jun. 30, 2024 USD ($) lender	Jun. 30, 2023
Line of Credit | Revolving Credit Facility
Line of Credit Facility [Line Items]
Commitment fee (as a percentage)			3.40%
MSCC Funding I, LLC
Line of Credit Facility [Line Items]
Average interest rate (as a percent)	7.90%	7.60%	7.90%	7.40%
MSCC Funding I, LLC | Line of Credit | Revolving Credit Facility | SPV Facility
Line of Credit Facility [Line Items]
Line of credit facility	$ 430,000,000		$ 430,000,000
Debt instrument, number of lenders | lender	6		6
Line of credit facility, maximum borrowing capacity including accordion feature			$ 450,000,000
Debt instrument, credit spread adjustment (as a percent)			0.10%
Commitment fee (as a percentage)			35%
Interest rate (as a percent)	7.90%		7.90%
MSCC Funding I, LLC | Line of Credit | Revolving Credit Facility | SPV Facility | Reinvestment Period
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate (as a percent)			2.50%
MSCC Funding I, LLC | Line of Credit | Revolving Credit Facility | SPV Facility | First Year Amortization Period
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate (as a percent)			2.625%
MSCC Funding I, LLC | Line of Credit | Revolving Credit Facility | SPV Facility | Second Year Amortization Period
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate (as a percent)			2.75%
MSCC Funding I, LLC | Line of Credit | Revolving Credit Facility | SPV Facility | Minimum
Line of Credit Facility [Line Items]
Line of credit facility, unused capacity, commitment fee (as a percent)			0.50%
MSCC Funding I, LLC | Line of Credit | Revolving Credit Facility | SPV Facility | Maximum
Line of Credit Facility [Line Items]
Line of credit facility, unused capacity, commitment fee (as a percent)			0.75%

DEBT - Schedule of MSCC Funding

DEBT - Schedule of MSCC Funding Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2024		Mar. 31, 2024	Dec. 31, 2023		Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
ASSETS
Investments at fair value:	$ 4,737,511	[1]		$ 4,286,271	[2]
Investment, cost	4,114,074	[3]		3,725,960	[4]
Cash and cash equivalents	30,472			60,083
Interest and dividend receivable and other assets	116,003			89,337
Receivable for securities sold	63,615			0
Deferred financing costs (net of accumulated amortization of $1,272 and $783 as of June 30, 2024 and December 31, 2023, respectively)	9,734			7,879
Deferred financing costs, accumulated amortization	13,370			12,329
Total assets	4,957,335			4,443,570
LIABILITIES
SPV Facility	2,198,068			1,802,344
Accounts payable and other liabilities to affiliates	51,143			62,576
Interest payable	25,823			17,025
Total liabilities	2,378,379			1,966,171
NET ASSETS
Contributed capital	2,337,879			2,270,549
Total undistributed earnings	240,212			206,002
Total net assets	2,578,956		$ 2,515,970	2,477,399		$ 2,254,948	$ 2,172,922	$ 2,108,586
Total liabilities and net assets	4,957,335			4,443,570
MSCC Funding I, LLC
ASSETS
Cash and cash equivalents	6,618			12,817
Interest and dividend receivable and other assets	2,734			2,956
Receivable for securities sold	124			0
Deferred financing costs (net of accumulated amortization of $1,272 and $783 as of June 30, 2024 and December 31, 2023, respectively)	3,340			3,829
Deferred financing costs, accumulated amortization	1,272			783
Total assets	348,708			336,994
LIABILITIES
SPV Facility	160,000			160,000
Accounts payable and other liabilities to affiliates	0			7,170
Interest payable	1,195			1,135
Total liabilities	161,195			168,305
NET ASSETS
Contributed capital	142,619			138,163
Total undistributed earnings	44,894			30,526
Total net assets	187,513			168,689
Total liabilities and net assets	348,708			336,994
Non‑Control/Non‑Affiliate investments
ASSETS
Investments at fair value:	1,909,318	[1],[5]		1,664,571	[2],[6]
Investment, cost	1,949,642	[3],[5]		1,714,935	[4],[6]
Non‑Control/Non‑Affiliate investments | MSCC Funding I, LLC
ASSETS
Investments at fair value:	335,892			317,392
Investment, cost	$ 335,118			$ 315,373
[1] Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. Principal is net of repayments. Cost is net of repayments and accumulated unearned income. Negative cost is the result of the capitalized discount being greater than the principal amount outstanding on the loan. Principal is net of repayments. Cost is net of repayments and accumulated unearned income. Negative cost is the result of the capitalized discount being greater than the principal amount outstanding on the loan. Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments. Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.

DEBT - Schedule of MSCC Fundi_2

DEBT - Schedule of MSCC Funding Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
INVESTMENT INCOME:
Interest, fee and dividend income	$ 132,154		$ 127,583		$ 263,759	$ 247,838
EXPENSES:
Interest	(29,161)		(26,754)		(55,937)	(51,752)
General and administrative	(5,375)		(4,514)		(9,595)	(8,591)
Total expenses	(44,854)		(41,855)		(86,653)	(81,144)
NET INVESTMENT INCOME	87,300		85,728		177,106	166,694
NET UNREALIZED APPRECIATION (DEPRECIATION):
Total net unrealized appreciation (depreciation)	23,044		104,941		63,693	140,059
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS	102,688	$ 107,147	106,516	$ 79,592	209,835	186,107
MSCC Funding I, LLC
INVESTMENT INCOME:
Interest, fee and dividend income	10,118		9,873		21,185	18,590
EXPENSES:
Interest	(3,096)		(3,512)		(4,774)	(6,940)
Management Fee to MSCC	(395)		(410)		(800)	(686)
General and administrative	(18)		(19)		(36)	(51)
Total expenses	(3,509)		(3,941)		(5,610)	(7,677)
NET INVESTMENT INCOME	6,609		5,932		15,575	10,913
NET UNREALIZED APPRECIATION (DEPRECIATION):
Total net unrealized appreciation (depreciation)	(769)		1,956		(1,246)	565
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS	5,840		7,888		14,329	11,478
Non‑Control/Non‑Affiliate investments
INVESTMENT INCOME:
Interest, fee and dividend income	57,635		58,605		120,394	112,542
NET UNREALIZED APPRECIATION (DEPRECIATION):
Total net unrealized appreciation (depreciation)	7,953		40,631		10,606	25,447
Non‑Control/Non‑Affiliate investments | MSCC Funding I, LLC
INVESTMENT INCOME:
Interest, fee and dividend income	10,118		9,873		21,185	18,590
NET UNREALIZED APPRECIATION (DEPRECIATION):
Total net unrealized appreciation (depreciation)	$ (769)		$ 1,956		$ (1,246)	$ 565

DEBT - Notes_Due and SBIC Deben

DEBT - Notes Due and SBIC Debentures (Details)		1 Months Ended					6 Months Ended
	Mar. 01, 2024 USD ($)	Jun. 30, 2024 USD ($)	May 31, 2024 USD ($)	Jan. 31, 2024 USD ($)	Oct. 31, 2021 USD ($)	Jan. 31, 2021 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)	Feb. 28, 2023 USD ($)	Dec. 31, 2022 USD ($) agency
Debt Instrument [Line Items]
Debt instrument, payable		$ 2,211,200,000					$ 2,211,200,000		$ 1,810,000,000
Debt		2,198,068,000					2,198,068,000		1,802,344,000
July 2026 Notes | Unsecured Notes
Debt Instrument [Line Items]
Debt instrument, face amount		500,000,000			$ 200,000,000	$ 300,000,000	500,000,000		500,000,000
Debt instrument, interest rate, stated (as a percent)						3%
Debt instrument, issuance price (as a percent)					101.741%	99.004%
Debt instrument, payable		500,000,000					500,000,000		500,000,000
Debt		498,925,000					498,925,000		498,662,000
March 2029 Notes | Unsecured Notes
Debt Instrument [Line Items]
Debt instrument, face amount		350,000,000		$ 350,000,000			350,000,000
Debt instrument, interest rate, stated (as a percent)				6.95%
Debt instrument, issuance price (as a percent)				99.865%
Debt instrument, payable		350,000,000					350,000,000
Debt		346,642,000					346,642,000		0
June 2027 Notes | Unsecured Notes
Debt Instrument [Line Items]
Debt instrument, face amount		$ 300,000,000					$ 300,000,000
Debt instrument, interest rate, stated (as a percent)		6.50%					6.50%
Debt instrument, issuance price (as a percent)		99.793%
Debt instrument, payable		$ 300,000,000					$ 300,000,000
Debt		297,660,000					297,660,000		0
SBIC Debentures
Debt Instrument [Line Items]
Repayments of debt							63,800,000	$ 16,000,000
SBIC Debentures | Unsecured Notes
Debt Instrument [Line Items]
Debt instrument, face amount		286,200,000					286,200,000		350,000,000
Debt instrument, payable		$ 286,200,000					$ 286,200,000		$ 350,000,000
Debt instrument, term (in years)							10 years
Repayments of debt	$ 63,800,000
Debt instrument, weighted-average annual interest rate (as a percent)		2.80%					2.80%		3%
Debt instrument, remaining term (in years)							5 years 1 month 6 days
Debt		$ 280,617,000					$ 280,617,000		$ 344,535,000
SBIC Debentures | Unsecured Notes | Maximum
Debt Instrument [Line Items]
Debt instrument, payable		350,000,000					350,000,000
SBIC Debentures | Unsecured Notes | MSMF
Debt Instrument [Line Items]
Debt instrument, face amount		111,200,000					111,200,000
Debt		107,800,000					107,800,000
Debt instrument, unamortized debt issuance costs		3,400,000					3,400,000
SBIC Debentures | Unsecured Notes | MSC III
Debt Instrument [Line Items]
Debt instrument, face amount		175,000,000					175,000,000
Debt		172,800,000					172,800,000
Debt instrument, unamortized debt issuance costs		2,200,000					2,200,000
December 2025 Notes | Unsecured Notes
Debt Instrument [Line Items]
Debt instrument, face amount		150,000,000					150,000,000		150,000,000
Debt instrument, payable		150,000,000					150,000,000		150,000,000
Debt		149,224,000					149,224,000		148,965,000
Debt instrument, credit rating, below investment grade event, percentage of agencies (as a percent)											67%
Debt instrument, secured debt ratio event											0.35
December 2025 Notes | Unsecured Notes | Minimum
Debt Instrument [Line Items]
Debt instrument, credit rating, below investment grade rating, number of agencies | agency											1
December 2025 Notes | Unsecured Notes | Maximum
Debt Instrument [Line Items]
Debt instrument, credit rating, below investment grade rating, number of agencies | agency											2
December 2025 Series A Notes | Unsecured Notes
Debt Instrument [Line Items]
Debt instrument, face amount											$ 100,000,000
Debt instrument, interest rate, stated (as a percent)											7.84%
December 2025 Series B Notes | Unsecured Notes
Debt Instrument [Line Items]
Debt instrument, face amount										$ 50,000,000
Debt instrument, interest rate, stated (as a percent)										7.53%
May 2024 Notes | Unsecured Notes
Debt Instrument [Line Items]
Debt instrument, face amount									450,000,000
Debt instrument, interest rate, stated (as a percent)			5.20%
Debt instrument, payable									450,000,000
Repayments of debt			$ 450,000,000
Debt		$ 0					$ 0		$ 450,182,000

FINANCIAL HIGHLIGHTS (Details)

FINANCIAL HIGHLIGHTS (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Investment Company, Financial Highlights [Roll Forward]
NAV at the beginning of the period (in dollars per share)	$ 29.20	$ 26.86
Net investment income (in dollars per share)	2.07	2.08
Net realized loss (in dollars per share)	(0.10)	(1.30)
Net unrealized appreciation (in dollars per share)	0.74	1.75
Income tax provision (in dollars per share)	(0.26)	(0.21)
Net increase in net assets resulting from operations (in dollars per share)	2.45	2.32
Dividends paid from net investment income (in dollars per share)	(2.04)	(1.75)
Dividends paid (in dollars per share)	(2.04)	(1.75)
Impact of the net change in monthly dividends declared prior to the end of the period and paid in the subsequent period (in dollars per share)	(0.01)	(0.01)
Accretive effect of stock offerings (issuing shares above NAV per share) (in dollars per share)	0.21	0.31
Accretive effect of DRIP issuance (issuing shares above NAV per share) (in dollars per share)	0.07	0.05
Other (in dollars per share)	(0.08)	(0.09)
NAV at the end of the period (in dollars per share)	29.80	27.69
Market value at the end of the period (in dollars per share)	$ 50.49	$ 40.03
Shares outstanding at the end of the period (in shares)	86,552,506	81,431,006
NAV at end of period	$ 2,578,956	$ 2,254,948	$ 2,515,970	$ 2,477,399	$ 2,172,922	$ 2,108,586
Average NAV	2,524,108	2,178,819
Average outstanding debt	$ 2,051,543	$ 1,991,714
Investment Company, Ratio To Average Net Assets [Abstract]
Ratio of total expenses, including income tax expense, to average NAV	4.31%	4.49%
Ratio of operating expenses to average NAV	3.43%	3.72%
Ratio of operating expenses, excluding interest expense, to average NAV	1.22%	1.35%
Ratio of net investment income to average NAV	7.02%	7.65%
Portfolio turnover ratio	8.62%	7.76%
Total investment return	21.97%	13.26%
Total return based on change in NAV	8.47%	8.83%
Related Party | External Investment Manager
Investment Company, Ratio To Average Net Assets [Abstract]
Total expenses	$ 11,400	$ 10,700

DIVIDENDS, DISTRIBUTIONS AND _3

DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Monthly dividend, per share (in dollars per share)	$ 0.24
Monthly dividend	$ 62	$ 54.3	$ 123.2	$ 107.9
Dividends, per share (in dollars per share)	$ 0.72	$ 0.675	$ 1.44	$ 1.35
Supplemental dividend	$ 26	$ 18.2	$ 51.6	$ 32.2
Supplemental dividend (in dollars per share)	$ 0.30	$ 0.225	$ 0.60	$ 0.40
Net deferred tax liability	$ 82.1		$ 82.1		$ 63.9

DIVIDENDS, DISTRIBUTIONS AND _4

DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME - Schedule of Reconciliation to Taxable Income and to Total Distributions Declared to Common Stockholders (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Tax Disclosure [Abstract]
Net increase in net assets resulting from operations	$ 102,688	$ 107,147	$ 106,516	$ 79,592	$ 209,835	$ 186,107
Book-tax difference from share-based compensation expense					(10,123)	(7,646)
Net unrealized appreciation					(63,693)	(140,059)
Income tax provision	$ 11,070		$ 8,647		22,010	16,760
Pre-tax book (income) loss not consolidated for tax purposes					(33,694)	44,328
Book income and tax income differences, including debt origination, structuring fees, dividends, realized gains and changes in estimates					29,576	45,352
Estimated taxable income					153,911	144,842
Taxable income earned in prior year and carried forward for distribution in current year					56,142	49,216
Taxable income earned prior to period end and carried forward for distribution next period					(55,633)	(71,501)
Dividend payable as of period end and paid in the following period					21,205	18,729
Total distributions accrued or paid to common stockholders					$ 175,625	$ 141,286

DIVIDENDS, DISTRIBUTIONS AND _5

DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME - Schedule of Provision for Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Current tax expense:
Federal	$ 328	$ 158	$ 657	$ 298
State	997	433	1,878	1,289
Excise	272	1,080	1,193	1,820
Total current tax expense	1,597	1,671	3,728	3,407
Deferred tax expense:
Federal	8,867	6,444	16,518	12,250
State	606	532	1,764	1,103
Total deferred tax expense	9,473	6,976	18,282	13,353
Total income tax provision	$ 11,070	$ 8,647	$ 22,010	$ 16,760

COMMON STOCK (Details)

COMMON STOCK (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Subsidiary, Sale of Stock [Line Items]
Proceeds from public offering of common stock, net of offering costs	$ 47,913	$ 84,100
At-The-Market Offerings
Subsidiary, Sale of Stock [Line Items]
Sale of stock, shares authorized under agreement (in shares)	15,000,000
Sale of stock, number of shares issued in transaction (in shares)	998,349		5,149,460
Proceeds from public offering of common stock, net of offering costs	$ 48,400		$ 205,700
Sale of stock, consideration received on transaction, net	$ 47,700		$ 203,300
Sale of stock, shares not yet settled (in shares)	0
Sale of stock, remaining number of shares authorized to be purchased (in shares)	4,314,875
At-The-Market Offerings | Weighted Average
Subsidiary, Sale of Stock [Line Items]
Sale of stock, price per share (in dollars per share)	$ 48.46		$ 39.94

DIVIDEND REINVESTMENT PLAN (Det

DIVIDEND REINVESTMENT PLAN (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Equity [Abstract]
DRIP participation	$ 8,788	$ 8,441	$ 6,880	$ 7,808	$ 17,229	$ 14,688
Shares issued for DRIP (in shares)					366,496	374,173

SHARE-BASED COMPENSATION - Narr

SHARE-BASED COMPENSATION - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share‑based compensation	$ 4,883	$ 4,087	$ 8,986	$ 8,187
Restricted Stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share‑based compensation	4,900	$ 4,100	9,000	8,200
Share-based payment arrangement, nonvested award, vested fair value			16,600	$ 15,600
Share-based payment arrangement, nonvested award, excluding option, cost not yet recognized, amount	$ 40,500		$ 40,500
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition (in years)			2 years 8 months 12 days
Restricted Stock | Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period (in years)			3 years
Restricted Stock | Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period (in years)			5 years
Restricted Stock | Main Street Capital Corporation 2022 Equity and Incentive Plan | Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period (in years)			3 years
Restricted Stock | Main Street Capital Corporation 2022 Equity and Incentive Plan | Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period (in years)			5 years

SHARE-BASED COMPENSATION - Sche

SHARE-BASED COMPENSATION - Schedule of Restricted Stock Authorized and Available for Issuance (Details) - Restricted Stock	6 Months Ended
	Jun. 30, 2024 shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Less net restricted stock granted (in shares)	(512,134)
Main Street Capital Corporation 2022 Equity and Incentive Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Restricted stock authorized under the plan (in shares)	5,000,000
Less net restricted stock granted (in shares)	(1,049,573)
Restricted stock available for issuance (in shares)	3,950,427
Main Street Capital Corporation 2022 Non-Employee Director Restricted Stock Plan | Director
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Restricted stock authorized under the plan (in shares)	300,000
Less net restricted stock granted (in shares)	(11,065)
Restricted stock available for issuance (in shares)	288,935

SHARE-BASED COMPENSATION - Sc_2

SHARE-BASED COMPENSATION - Schedule of Restricted Share Awards (Details) - Restricted Stock	6 Months Ended
	Jun. 30, 2024 USD ($) $ / shares shares	Dec. 31, 2023 shares
Number of Shares
Nonvested beginning balance (in shares) | shares	1,041,589	958,225
Granted (in shares) | shares	512,134
Vested (in shares) | shares	(407,631)
Forfeited (in shares) | shares	(21,139)
Weighted-Average Grant-Date Fair Value
Nonvested beginning balance (in dollars per share)	$ 40.48
Granted (in dollars per share)	46.94
Vested (in dollars per share)	40.62
Forfeited (in dollars per share)	42.78
Nonvested ending balance (in dollars per share)	$ 43.56
Aggregate intrinsic value | $	$ 52,590,000
Shares withheld for payroll taxes paid (in shares) | shares	155,046
Share price (in dollars per share)	$ 50.49
Minimum
Weighted-Average Grant-Date Fair Value
Vesting period (in years)	3 years
Maximum
Weighted-Average Grant-Date Fair Value
Vesting period (in years)	5 years

COMMITMENTS AND CONTINGENCIES_2

COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands	Jun. 30, 2024 USD ($) investment
Other Commitments [Line Items]
Committed capital	$ 288,160
Equity
Other Commitments [Line Items]
Committed capital	31,945
Debt
Other Commitments [Line Items]
Committed capital	$ 256,215
Other Portfolio investments
Other Commitments [Line Items]
Contractual obligation, number of additional investments, investment period expired with remaining commitments restricted for fund expenses | investment	6
Contractual obligation, number of additional investments, investment period expired with remaining commitments restricted for fund expenses or follow on investments in existing portfolio companies | investment	5
Investment, Identifier [Axis]: AAC Holdings, Inc.
Other Commitments [Line Items]
Committed capital	$ 200
Investment, Identifier [Axis]: AB Centers Acquisition Corporation
Other Commitments [Line Items]
Committed capital	3,910
Investment, Identifier [Axis]: ATS Operating, LLC
Other Commitments [Line Items]
Committed capital	1,044
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC
Other Commitments [Line Items]
Committed capital	3,684
Investment, Identifier [Axis]: Acumera, Inc.
Other Commitments [Line Items]
Committed capital	1,598
Investment, Identifier [Axis]: Adams Publishing Group, LLC
Other Commitments [Line Items]
Committed capital	2
Investment, Identifier [Axis]: American Health Staffing Group, Inc.
Other Commitments [Line Items]
Committed capital	1,333
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC
Other Commitments [Line Items]
Committed capital	580
Investment, Identifier [Axis]: ArborWorks, LLC
Other Commitments [Line Items]
Committed capital	868
Investment, Identifier [Axis]: BP Loenbro Holdings Inc.
Other Commitments [Line Items]
Committed capital	4,346
Investment, Identifier [Axis]: Barfly Ventures, LLC
Other Commitments [Line Items]
Committed capital	760
Investment, Identifier [Axis]: Batjer TopCo, LLC
Other Commitments [Line Items]
Committed capital	1,620
Investment, Identifier [Axis]: Bettercloud, Inc.
Other Commitments [Line Items]
Committed capital	4,189
Investment, Identifier [Axis]: Bluestem Brands, Inc.
Other Commitments [Line Items]
Committed capital	1,374
Investment, Identifier [Axis]: Bond Brand Loyalty ULC
Other Commitments [Line Items]
Committed capital	1,427
Investment, Identifier [Axis]: Brightwood Capital Fund III, LP
Other Commitments [Line Items]
Committed capital	65
Investment, Identifier [Axis]: Brightwood Capital Fund V, LP
Other Commitments [Line Items]
Committed capital	2,500
Investment, Identifier [Axis]: Buca C, LLC
Other Commitments [Line Items]
Committed capital	32
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc.
Other Commitments [Line Items]
Committed capital	2,397
Investment, Identifier [Axis]: CQ Fluency, LLC
Other Commitments [Line Items]
Committed capital	6,750
Investment, Identifier [Axis]: California Splendor Holdings LLC
Other Commitments [Line Items]
Committed capital	6,000
Investment, Identifier [Axis]: Career Team Holdings, LLC
Other Commitments [Line Items]
Committed capital	1,800
Investment, Identifier [Axis]: CaseWorthy, Inc.
Other Commitments [Line Items]
Committed capital	1,230
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC
Other Commitments [Line Items]
Committed capital	2,400
Investment, Identifier [Axis]: Chamberlin Holding LLC
Other Commitments [Line Items]
Committed capital	1,600
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC
Other Commitments [Line Items]
Committed capital	1,554
Investment, Identifier [Axis]: Clad-Rex Steel, LLC
Other Commitments [Line Items]
Committed capital	1,200
Investment, Identifier [Axis]: Cody Pools, Inc.
Other Commitments [Line Items]
Committed capital	4,214
Investment, Identifier [Axis]: Colonial Electric Company LLC
Other Commitments [Line Items]
Committed capital	1,600
Investment, Identifier [Axis]: Computer Data Source, LLC
Other Commitments [Line Items]
Committed capital	9,000
Investment, Identifier [Axis]: Coregistics Buyer LLC
Other Commitments [Line Items]
Committed capital	3,100
Investment, Identifier [Axis]: Creative Foam Corporation
Other Commitments [Line Items]
Committed capital	15,375
Investment, Identifier [Axis]: Cybermedia Technologies, LLC
Other Commitments [Line Items]
Committed capital	2,000
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC
Other Commitments [Line Items]
Committed capital	520
Investment, Identifier [Axis]: Elgin AcquireCo, LLC
Other Commitments [Line Items]
Committed capital	1,877
Investment, Identifier [Axis]: EnCap Equity - Fund XII, LP
Other Commitments [Line Items]
Committed capital	5,609
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC
Other Commitments [Line Items]
Committed capital	2,293
Investment, Identifier [Axis]: Escalent, Inc.
Other Commitments [Line Items]
Committed capital	1,326
Investment, Identifier [Axis]: GRT Rubber Technologies LLC
Other Commitments [Line Items]
Committed capital	204
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC
Other Commitments [Line Items]
Committed capital	2,273
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC
Other Commitments [Line Items]
Committed capital	1,515
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC
Other Commitments [Line Items]
Committed capital	1,200
Investment, Identifier [Axis]: Garyline, LLC
Other Commitments [Line Items]
Committed capital	6,000
Investment, Identifier [Axis]: Gulf Manufacturing, LLC
Other Commitments [Line Items]
Committed capital	5,000
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC
Other Commitments [Line Items]
Committed capital	400
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC
Other Commitments [Line Items]
Committed capital	16,875
Investment, Identifier [Axis]: HPEP 3, L.P.
Other Commitments [Line Items]
Committed capital	1,308
Investment, Identifier [Axis]: HPEP 4, L.P.
Other Commitments [Line Items]
Committed capital	7,495
Investment, Identifier [Axis]: IG Investor, LLC
Other Commitments [Line Items]
Committed capital	4,000
Investment, Identifier [Axis]: IG Parent Corporation (Infogain)
Other Commitments [Line Items]
Committed capital	2,500
Investment, Identifier [Axis]: ITA Holdings Group, LLC
Other Commitments [Line Items]
Committed capital	286
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C.
Other Commitments [Line Items]
Committed capital	2,174
Investment, Identifier [Axis]: Insight Borrower Corporation
Other Commitments [Line Items]
Committed capital	6,688
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC
Other Commitments [Line Items]
Committed capital	50
Investment, Identifier [Axis]: Invincible Boat Company, LLC.
Other Commitments [Line Items]
Committed capital	1,080
Investment, Identifier [Axis]: Island Pump and Tank, LLC
Other Commitments [Line Items]
Committed capital	456
Investment, Identifier [Axis]: JDC Power Services, LLC
Other Commitments [Line Items]
Committed capital	6,211
Investment, Identifier [Axis]: Jackmont Hospitality, Inc.
Other Commitments [Line Items]
Committed capital	441
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC
Other Commitments [Line Items]
Committed capital	500
Investment, Identifier [Axis]: Johnson Downie Opco, LLC
Other Commitments [Line Items]
Committed capital	3,600
Investment, Identifier [Axis]: MS Private Loan Fund
Other Commitments [Line Items]
Committed capital	3,000
Investment, Identifier [Axis]: MS Private Loan Fund I, LP
Other Commitments [Line Items]
Committed capital	750
Investment, Identifier [Axis]: MS Private Loan Fund II
Other Commitments [Line Items]
Committed capital	500
Investment, Identifier [Axis]: MS Private Loan Fund II, LP
Other Commitments [Line Items]
Committed capital	8,691
Investment, Identifier [Axis]: Mako Steel, LP
Other Commitments [Line Items]
Committed capital	3,651
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC
Other Commitments [Line Items]
Committed capital	2,795
Investment, Identifier [Axis]: Microbe Formulas, LLC
Other Commitments [Line Items]
Committed capital	3,601
Investment, Identifier [Axis]: Mini Melts of America, LLC
Other Commitments [Line Items]
Committed capital	655
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC
Other Commitments [Line Items]
Committed capital	800
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC
Other Commitments [Line Items]
Committed capital	1,250
Investment, Identifier [Axis]: Nello Industries Investco, LLC
Other Commitments [Line Items]
Committed capital	3,426
Investment, Identifier [Axis]: NexRev LLC
Other Commitments [Line Items]
Committed capital	2,400
Investment, Identifier [Axis]: NinjaTrader, LLC
Other Commitments [Line Items]
Committed capital	1,750
Investment, Identifier [Axis]: Obra Capital, Inc.
Other Commitments [Line Items]
Committed capital	148
Investment, Identifier [Axis]: Orttech Holdings, LLC
Other Commitments [Line Items]
Committed capital	800
Investment, Identifier [Axis]: PTL US Bidco, Inc
Other Commitments [Line Items]
Committed capital	4,612
Investment, Identifier [Axis]: Pinnacle TopCo, LLC
Other Commitments [Line Items]
Committed capital	1,600
Investment, Identifier [Axis]: Power System Solutions
Other Commitments [Line Items]
Committed capital	3,085
Investment, Identifier [Axis]: PurgeRite, LLC
Other Commitments [Line Items]
Committed capital	1,969
Investment, Identifier [Axis]: Roof Opco, LLC
Other Commitments [Line Items]
Committed capital	233
Investment, Identifier [Axis]: SI East, LLC
Other Commitments [Line Items]
Committed capital	5,250
Investment, Identifier [Axis]: SPAU Holdings, LLC
Other Commitments [Line Items]
Committed capital	1,661
Investment, Identifier [Axis]: Sales Performance International, LLC
Other Commitments [Line Items]
Committed capital	2,130
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC
Other Commitments [Line Items]
Committed capital	4,465
Investment, Identifier [Axis]: The Affiliati Network, LLC
Other Commitments [Line Items]
Committed capital	2,000
Investment, Identifier [Axis]: Titan Meter Midco Corp.
Other Commitments [Line Items]
Committed capital	3,598
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC
Other Commitments [Line Items]
Committed capital	1,600
Investment, Identifier [Axis]: UnionRock Energy Fund II, LP
Other Commitments [Line Items]
Committed capital	527
Investment, Identifier [Axis]: UnionRock Energy Fund III, LP
Other Commitments [Line Items]
Committed capital	5,000
Investment, Identifier [Axis]: VVS Holdco LLC
Other Commitments [Line Items]
Committed capital	3,200
Investment, Identifier [Axis]: Veregy Consolidated, Inc.
Other Commitments [Line Items]
Committed capital	5,875
Investment, Identifier [Axis]: Vitesse Systems
Other Commitments [Line Items]
Committed capital	386
Investment, Identifier [Axis]: Wall Street Prep, Inc.
Other Commitments [Line Items]
Committed capital	400
Investment, Identifier [Axis]: Watterson Brands, LLC
Other Commitments [Line Items]
Committed capital	3,176
Investment, Identifier [Axis]: Winter Services LLC
Other Commitments [Line Items]
Committed capital	2,667
Investment, Identifier [Axis]: ZRG Partners, LLC
Other Commitments [Line Items]
Committed capital	28,876
Brightwood Capital Fund Investments | Equity
Other Commitments [Line Items]
Committed capital	2,565
Harris Preston Fund Investments | Equity
Other Commitments [Line Items]
Committed capital	8,803
UnionRock Energy Fund Investments | Equity
Other Commitments [Line Items]
Committed capital	$ 5,527

RELATED PARTY TRANSACTIONS (Det

RELATED PARTY TRANSACTIONS (Details) - Related Party - USD ($)	1 Months Ended					6 Months Ended
	Sep. 30, 2023	Aug. 31, 2023	Mar. 31, 2022	Feb. 28, 2022	Dec. 31, 2020	Jun. 30, 2024	May 31, 2024	Jan. 31, 2024	Oct. 31, 2023	May 31, 2023
External Investment Manager
Related Party Transaction [Line Items]
Receivable						$ 9,800,000
MSC Income
Related Party Transaction [Line Items]
Shares acquired (in shares)		348,542				1,919,596	315,259	314,070	475,888	255,755
Operating Expenses and Amount Due From Tax Sharing Agreement | External Investment Manager
Related Party Transaction [Line Items]
Receivable						$ 6,500,000
Dividends Declared But Not Yet Paid | External Investment Manager
Related Party Transaction [Line Items]
Receivable						3,300,000
Dutch Auction | MSC Income
Related Party Transaction [Line Items]
Shares acquired (in shares)	115,385
Sale of stock, price per share (in dollars per share)	$ 6.50
Sale of stock, authorized consideration on transaction		$ 3,500,000
Investment Management Agreement | Private Loan Fund
Related Party Transaction [Line Items]
Amounts of transaction				$ 15,000,000	$ 10,000,000
Funded commitments						14,300,000
Unfunded commitments						700,000
Investment Management Agreement | Private Loan Fund II
Related Party Transaction [Line Items]
Amounts of transaction	$ 15,000,000
Funded commitments						2,200,000
Unfunded commitments						8,700,000
Percentage of total commitments (as a percent)	20%
Secured Revolving Promissory Note | Private Loan Fund
Related Party Transaction [Line Items]
Amounts of transaction			$ 10,000,000
Interest rate (as a percent)			5%
Unused capacity, commitment fee (as a percent)			0.25%
Amount of debt outstanding						7,000,000
Secured Revolving Promissory Note | Private Loan Fund II
Related Party Transaction [Line Items]
Amounts of transaction	$ 50,000,000
Interest rate (as a percent)	3.50%
Unused capacity, commitment fee (as a percent)	0.25%
Amount of debt outstanding						49,500,000
Interest rate, floor (as a percent)	2%
2015 Deferred Compensation Plan
Related Party Transaction [Line Items]
Amounts of transaction						23,900,000
2015 Deferred Compensation Plan | Rabbi Trust
Related Party Transaction [Line Items]
Amounts of transaction						$ 14,800,000
2015 Deferred Compensation Plan | Common Stock
Related Party Transaction [Line Items]
Deferred compensation (in shares)						180,250
2015 Deferred Compensation Plan | Phantom Stock Units
Related Party Transaction [Line Items]
Amounts of transaction						$ 9,100,000
2015 Deferred Compensation Plan | Private Loan Fund | Rabbi Trust
Related Party Transaction [Line Items]
Amounts of transaction						2,100,000
2015 Deferred Compensation Plan | Private Loan Fund II | Rabbi Trust
Related Party Transaction [Line Items]
Amounts of transaction						$ 3,600,000

SUBSEQUENT EVENTS (Details)

SUBSEQUENT EVENTS (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended			6 Months Ended		204 Months Ended
	Aug. 09, 2024	Dec. 31, 2024	Sep. 30, 2024	Dec. 31, 2023	Jun. 30, 2024	Jun. 30, 2023	Sep. 30, 2024
Subsequent Event [Line Items]
Increase common stock, monthly dividend, cash paid (as a percent)				4.30%
Outstanding Balance				$ 1,810,000	$ 2,211,200
SBIC Debentures
Subsequent Event [Line Items]
Proceeds from debt					0	$ 16,000
SBIC Debentures | Unsecured Notes
Subsequent Event [Line Items]
Outstanding Balance				$ 350,000	286,200
SBIC Debentures | Unsecured Notes | Maximum
Subsequent Event [Line Items]
Outstanding Balance					$ 350,000
Forecast
Subsequent Event [Line Items]
Common stock, monthly dividend, per share, declared (in dollars per share)		$ 0.735	$ 0.735
Common stock, cumulative monthly dividend and supplemental dividend, per share, paid (in dollars per share)							$ 42.625
Subsequent Event
Subsequent Event [Line Items]
Common stock, supplemental cash dividend, per share, declared (in dollars per share)	$ 0.30
Subsequent Event | Forecast | SBIC Debentures | Unsecured Notes
Subsequent Event [Line Items]
Proceeds from debt			$ 63,800
Subsequent Event | Forecast | SBIC Debentures | Unsecured Notes | Maximum
Subsequent Event [Line Items]
Outstanding Balance			$ 350,000				$ 350,000
Subsequent Event | Dividends, July to September 2024
Subsequent Event [Line Items]
Common stock, monthly dividend, per share, declared (in dollars per share)	0.245
Subsequent Event | Dividends, October to December 2024
Subsequent Event [Line Items]
Common stock, monthly dividend, per share, declared (in dollars per share)	$ 0.245

Consolidated Schedule of Inve_5

Consolidated Schedule of Investments In and Advances to Affiliates (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended
		Jun. 30, 2024		Jun. 30, 2023	Jun. 30, 2024		Jun. 30, 2023	Dec. 31, 2023
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		$ 3,414		$ (75,506)	$ (8,954)		$ (103,886)
Amount of Unrealized Gain/(Loss)		23,044		104,941	63,693		140,059
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				4,286,271
Ending balance	[2]	4,737,511			4,737,511
Control investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		(361)		(48,111)	(352)		(51,077)
Amount of Unrealized Gain/(Loss)		5,589		75,779	37,659		92,940
Amount of Interest, Fees or Dividends Credited to Income					102,437		96,841
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,006,698	[1],[3]	1,703,172
Gross Additions					243,661		338,651
Gross Reductions					114,546		173,038
Ending balance		2,075,429	[2],[4]	1,883,699	2,075,429	[2],[4]	1,883,699
Affiliate investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		7,863		9,997	753		(16,267)
Amount of Unrealized Gain/(Loss)		9,502		(11,469)	15,428		21,672
Amount of Interest, Fees or Dividends Credited to Income					40,928		38,455
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					615,002	[1],[5]	618,359
Gross Additions					287,347		175,201
Gross Reductions					209,969		215,521
Ending balance		752,764	[2],[6]	563,125	752,764	[2],[6]	563,125
Investment, Identifier [Axis]: 2717 MH, L.P., LP Interests (2717 GRE-LP, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					441
Gross Reductions					0
Ending balance		441			441
Investment, Identifier [Axis]: 2717 MH, L.P., LP Interests (2717 HPP-MS, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					60		67
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					315		248
Gross Additions					59		67
Gross Reductions					0		0
Ending balance		374		315	374		315
Investment, Identifier [Axis]: 2717 MH, L.P., LP Interests (2717 MH, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					57		1,677
Amount of Unrealized Gain/(Loss)					2,941		(675)
Amount of Interest, Fees or Dividends Credited to Income					278		141
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,050		7,552
Gross Additions					2,998		2,077
Gross Reductions					57		3,283
Ending balance		8,991		6,346	8,991		6,346
Investment, Identifier [Axis]: 423 HAR, LP, LP Interests (423 HAR, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					51		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					996		0
Gross Additions					52		750
Gross Reductions					0		0
Ending balance		1,048		750	1,048		750
Investment, Identifier [Axis]: AAC Holdings, Inc., Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[7]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[8]	$ 0	$ 0	[8]	$ 0
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		18%	[8]	18%	18%	[8]	18%	18%	[7]
PIK Rate		18%	[8]	18%	18%	[8]	18%	18%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(2)		(16)
Amount of Interest, Fees or Dividends Credited to Income					44		27
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					418	[7]	0
Gross Additions					60		376
Gross Reductions					2		16
Ending balance		$ 476	[8]	$ 360	$ 476	[8]	$ 360
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		18%	[8]	18%	18%	[8]	18%	18%	[7]
PIK Rate		18%	[8]	18%	18%	[8]	18%	18%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(44)		(558)
Amount of Interest, Fees or Dividends Credited to Income					1,404		1,149
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					13,895	[7]	11,550
Gross Additions					1,919		1,149
Gross Reductions					44		558
Ending balance		$ 15,770	[8]	$ 12,141	15,770	[8]	12,141
Investment, Identifier [Axis]: AAC Holdings, Inc., Warrants
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[7],[9]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[8],[10]	0	$ 0	[8],[10]	0
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread		5%	[11],[12],[13]		5%	[11],[12],[13]		5%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ 0
Ending balance	[11],[12],[13]	$ 0			$ 0
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.44%	[11],[13],[17]		11.44%	[11],[13],[17]		11.43%	[14],[16]
Spread		6%	[11],[13],[17]		6%	[11],[13],[17]		6%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 1,921
Ending balance	[11],[13],[17]	$ 4,162			$ 4,162
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.44%	[11],[13]		11.44%	[11],[13]		11.43%	[14],[16]
Spread		6%	[11],[13]		6%	[11],[13]		6%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 19,817
Ending balance	[11],[13]	$ 19,717			$ 19,717
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		11.44%	[11],[13]		11.44%	[11],[13]		11.43%	[14],[16]
Spread		6%	[11],[13]		6%	[11],[13]		6%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 1,372
Ending balance	[11],[13]	$ 1,366			$ 1,366
Investment, Identifier [Axis]: ADS Tactical, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.25%	[8],[13]		13.25%	[8],[13]		11.22%	[7],[16]
Spread		4.75%	[8],[13]		4.75%	[8],[13]		5.75%	[7],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				$ 10,860
Ending balance	[8],[13]	$ 6,431			6,431
Investment, Identifier [Axis]: AFG Capital Group, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							7,200
Amount of Unrealized Gain/(Loss)							(8,200)
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							9,400
Gross Additions							7,200
Gross Reductions							16,600
Ending balance				0			0
Investment, Identifier [Axis]: AMEREQUIP LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[18]				2,120
Ending balance	[11],[19]	1,920			1,920
Investment, Identifier [Axis]: AMEREQUIP LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[14],[15],[16]							7.40%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				(108)
Investment, Identifier [Axis]: AMEREQUIP LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[14],[16]							12.76%
Spread	[14],[16]							7.40%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				28,422
Investment, Identifier [Axis]: ASC Interests, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(60)		(384)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					100		800
Gross Additions					0		94
Gross Reductions					60		384
Ending balance		40		$ 510	40		$ 510
Investment, Identifier [Axis]: ASC Interests, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					266
Gross Additions					0
Gross Reductions					0
Ending balance		$ 266			$ 266
Investment, Identifier [Axis]: ASC Interests, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13%		13%	13%		13%	13%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					27		27
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					400		400
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 400		$ 400	$ 400		$ 400
Investment, Identifier [Axis]: ASC Interests, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%		13%	13%		13%	13%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		(52)
Amount of Interest, Fees or Dividends Credited to Income					109		108
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,597		1,649
Gross Additions					1		0
Gross Reductions					0		52
Ending balance		$ 1,598		$ 1,597	1,598		1,597
Investment, Identifier [Axis]: ATS Operating, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				670
Ending balance	[11]	$ 720			$ 720
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.06%	[11],[13],[20]		12.06%	[11],[13],[20]		12.16%	[14],[16]
Spread		6.50%	[11],[13],[20]		6.50%	[11],[13],[20]		6.50%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 360
Ending balance	[11],[13],[20]	$ 756			$ 756
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.06%	[11],[13]		11.06%	[11],[13]		11.16%	[14],[16]
Spread		5.50%	[11],[13]		5.50%	[11],[13]		5.50%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 6,660
Ending balance	[11],[13]	$ 6,660			$ 6,660
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.06%	[11],[13]		13.06%	[11],[13]		13.16%	[14],[16]
Spread		7.50%	[11],[13]		7.50%	[11],[13]		7.50%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 6,660
Ending balance	[11],[13]	$ 6,660			6,660
Investment, Identifier [Axis]: ATS Workholding, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[14]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[11]	$ 0	$ 0	[11]	$ 0
Investment, Identifier [Axis]: ATS Workholding, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		5%	[11],[21]	5%	5%	[11],[21]	5%	5%	[14],[22]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(281)		(277)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					328	[14],[22]	634
Gross Additions					167		126
Gross Reductions					281		277
Ending balance		$ 214	[11],[21]	$ 483	$ 214	[11],[21]	$ 483
Investment, Identifier [Axis]: ATS Workholding, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		5%	[11],[21]	5%	5%	[11],[21]	5%	5%	[14],[22]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(187)		(286)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					473	[14],[22]	1,005
Gross Additions					0		0
Gross Reductions					188		286
Ending balance		$ 285	[11],[21]	$ 719	285	[11],[21]	719
Investment, Identifier [Axis]: ATX Networks Corp., Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							3,248
Amount of Unrealized Gain/(Loss)							(3,270)
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							3,270
Gross Additions							3,248
Gross Reductions							6,518
Ending balance				$ 0			$ 0
Investment, Identifier [Axis]: ATX Networks Corp., Secured Debt
Schedule of Investments [Line Items]
Spread				7.50%			7.50%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(134)
Amount of Interest, Fees or Dividends Credited to Income							886
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							6,343
Gross Additions							575
Gross Reductions							6,918
Ending balance				$ 0			0
Investment, Identifier [Axis]: ATX Networks Corp., Unsecured Debt
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(306)
Amount of Interest, Fees or Dividends Credited to Income							1,160
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							2,598
Gross Additions							1,160
Gross Reductions							3,758
Ending balance				0			0
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[18]				892
Ending balance	[11],[19]	$ 892			$ 892
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.25%	[11],[12],[13]		7.25%	[11],[12],[13]		7.25%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (38)
Ending balance	[11],[12],[13]	$ (105)			$ (105)
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.74%	[11],[13]		12.74%	[11],[13]		12.76%	[14],[16]
Spread		7.25%	[11],[13]		7.25%	[11],[13]		7.25%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 24,080
Ending balance	[11],[13]	$ 24,378			$ 24,378
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		7%	[11],[12],[13]		7%	[11],[12],[13]		7.50%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (2)
Ending balance	[11],[12],[13]	$ (1)			$ (1)
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.44%	[11],[13]		12.44%	[11],[13]		12.98%	[14],[16]
Spread		7%	[11],[13]		7%	[11],[13]		7.50%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 24,796
Ending balance	[11],[13]	$ 24,482			24,482
Investment, Identifier [Axis]: Acumera, Inc., Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[23]				110
Ending balance	[11],[24]	$ 110			$ 110
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11%	[11],[13],[25]		11%	[11],[13],[25]		11%	[14],[16],[26]
Spread		7%	[11],[13],[25]		7%	[11],[13],[25]		7%	[14],[16],[26]
PIK Rate		1%	[11],[13],[25]		1%	[11],[13],[25]		1%	[14],[16],[26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[26]				$ 7,684
Ending balance	[11],[13],[25]	$ 7,582			$ 7,582
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11%	[11],[13],[25]		11%	[11],[13],[25]		11%	[14],[16],[26]
Spread		7%	[11],[13],[25]		7%	[11],[13],[25]		7%	[14],[16],[26]
PIK Rate		1%	[11],[13],[25]		1%	[11],[13],[25]		1%	[14],[16],[26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[26]				$ 20,784
Ending balance	[11],[13],[25]	$ 19,253			$ 19,253
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		5%	[11],[12],[13]		5%	[11],[12],[13]		5%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (8)
Ending balance	[11],[12],[13]	$ (6)			$ (6)
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.61%	[11],[13]		11.61%	[11],[13]		13.50%	[14],[16]
Spread		6%	[11],[13]		6%	[11],[13]		5%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 6,550
Ending balance	[11],[13]	$ 6,517			$ 6,517
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.20%	[11],[13]		15.20%	[11],[13]		15.29%	[14],[16]
Spread		9.75%	[11],[13]		9.75%	[11],[13]		9.75%	[14],[16]
PIK Rate		15.20%	[11],[13]		15.20%	[11],[13]		15.29%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 5,495
Ending balance	[11],[13]	$ 5,787			$ 5,787
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.20%	[11],[13]		15.20%	[11],[13]		15.29%	[14],[16]
Spread		9.75%	[11],[13]		9.75%	[11],[13]		9.75%	[14],[16]
PIK Rate		15.20%	[11],[13]		15.20%	[11],[13]		15.29%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 8,922
Ending balance	[11],[13]	$ 9,416			$ 9,416
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		17.20%	[11],[13],[21]		17.20%	[11],[13],[21]		17.29%	[14],[16],[22]
Spread		11.75%	[11],[13],[21]		11.75%	[11],[13],[21]		11.75%	[14],[16],[22]
PIK Rate		17.20%	[11],[13],[21]		17.20%	[11],[13],[21]		17.29%	[14],[16],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[22]				$ 3,369
Ending balance	[11],[13],[21]	$ 3,526			$ 3,526
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		17.20%	[11],[13],[21]		17.20%	[11],[13],[21]		17.29%	[14],[16],[22]
Spread		11.75%	[11],[13],[21]		11.75%	[11],[13],[21]		11.75%	[14],[16],[22]
PIK Rate		17.20%	[11],[13],[21]		17.20%	[11],[13],[21]		17.29%	[14],[16],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[22]				$ 5,482
Ending balance	[11],[13],[21]	$ 5,736			5,736
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[22],[27]				134
Ending balance	[8],[21],[28]	76			76
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[22],[27]				647
Ending balance	[8],[21],[28]	374			374
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Affiliate Investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(4,370)		0
Amount of Interest, Fees or Dividends Credited to Income					(2,811)		171
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(60,384)		14,914
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0		0	0		0
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Control Investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					4,370		0
Amount of Interest, Fees or Dividends Credited to Income					2,811		(171)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					60,384		(14,914)
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0		$ 0	0		$ 0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Total Rate				14.13%			14.13%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,860		0
Gross Additions							0
Gross Reductions							0
Ending balance		$ 5,620		$ 0	$ 5,620		0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Total Rate		14.13%			14.13%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Total Rate		14.13%			14.13%			14.13%
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							566
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 0		3,504
Gross Additions							566
Gross Reductions							0
Ending balance		$ 0		$ 4,070	0		$ 4,070
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					760
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,860
Gross Additions					760
Gross Reductions					0
Ending balance		$ 5,620			$ 5,620
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.38%	[13]		15.38%	[13]		15.38%	[16]
Spread		10%	[13]	10%	10%	[13]	10%	10%	[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					219	[16]	(3)
Gross Additions					1		1
Gross Reductions					0		0
Ending balance		$ 220	[13]	$ (2)	$ 220	[13]	$ (2)
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.38%	[13]	15.25%	15.38%	[13]	15.25%	15.38%	[16]
Spread		10%	[13]	10%	10%	[13]	10%	10%	[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					346		379
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,084	[16]	4,545
Gross Additions					34		39
Gross Reductions					195		140
Ending balance		$ 3,923	[13]	$ 4,444	3,923	[13]	4,444
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Warrants
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[9]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0	[10]	0	0	[10]	0
Investment, Identifier [Axis]: ArborWorks, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				0
Ending balance	[11]	0			0
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				14,060
Ending balance	[11]	12,552			12,552
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				0
Ending balance	[11]	$ 0			$ 0
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15%	[11],[13]		15%	[11],[13]		15%	[14]
PIK Rate		15%	[11],[13]		15%	[11],[13]		15%	[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				$ 1,907
Ending balance	[11],[13]	$ 3,817			$ 3,817
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.99%	[11],[13]		11.99%	[11],[13]		12.04%	[14],[16]
Spread		6.50%	[11],[13]		6.50%	[11],[13]		6.50%	[14],[16]
PIK Rate		11.99%	[11],[13]		11.99%	[11],[13]		12.04%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 7,149
Ending balance	[11],[13]	$ 7,592			7,592
Investment, Identifier [Axis]: Archer Systems, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				2,230
Ending balance	[11]	2,210			2,210
Investment, Identifier [Axis]: BBB Tank Services, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							0
Gross Reductions							0
Ending balance				$ 0			$ 0
Investment, Identifier [Axis]: BBB Tank Services, LLC, Preferred Stock (non-voting)
Schedule of Investments [Line Items]
Total Rate				15%			15%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							0
Gross Reductions							0
Ending balance				$ 0			$ 0
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 1
Schedule of Investments [Line Items]
Total Rate				16.17%			16.17%
Spread				11%			11%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							63
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							800
Gross Additions							0
Gross Reductions							0
Ending balance				$ 800			$ 800
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 2
Schedule of Investments [Line Items]
Total Rate				16.17%			16.17%
Spread				11%			11%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							116
Amount of Interest, Fees or Dividends Credited to Income							317
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							2,086
Gross Additions							116
Gross Reductions							0
Ending balance				$ 2,202			2,202
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	$ 2,333			$ 2,333
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.44%			11.44%
Spread	[11],[13]	6%			6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 1,632			$ 1,632
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	6%			6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (25)			$ (25)
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.43%			11.43%
Spread	[11],[13]	6%			6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 26,241			$ 26,241
Investment, Identifier [Axis]: Barfly Ventures, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					580		(280)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,140	[14]	3,320
Gross Additions					580		0
Gross Reductions					0		280
Ending balance		$ 4,720	[11],[19]	$ 3,040	$ 4,720	[11],[19]	$ 3,040
Investment, Identifier [Axis]: Barfly Ventures, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		7%	[11]	7%	7%	[11]	7%	7%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					26		44
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					711	[14]	711
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 711	[11]	$ 711	711	[11]	711
Investment, Identifier [Axis]: Batjer TopCo, LLC, Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(430)		2,055
Amount of Interest, Fees or Dividends Credited to Income					407		574
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,150	[18]	4,095
Gross Additions					0		2,055
Gross Reductions					430		0
Ending balance		$ 5,720	[19]	6,150	$ 5,720	[19]	6,150
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10%			10%
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					(6)		7
Amount of Interest, Fees or Dividends Credited to Income					18		1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15]	(8)
Gross Additions					451		8
Gross Reductions					6		0
Ending balance		$ 445		0	$ 445		0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%			10%			10%
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					14		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					270		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 270		$ 0	$ 270		$ 0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10%		10%	10%		10%	10%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(67)		78
Amount of Interest, Fees or Dividends Credited to Income					545		583
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					10,575		10,933
Gross Additions					10		92
Gross Reductions					67		450
Ending balance		$ 10,518		$ 10,575	10,518		10,575
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[29]				200
Ending balance	[11]	878			878
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[18],[29]				2,560
Ending balance	[11],[30]	10			10
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[30]	$ 110			$ 110
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		10.25%	[11],[12],[13]		10.25%	[11],[12],[13]		7.25%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (62)
Ending balance	[11],[12],[13]	$ (55)			$ (55)
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.60%	[11],[13]		15.60%	[11],[13]		12.64%	[14],[16]
Spread		10.25%	[11],[13]		10.25%	[11],[13]		7.25%	[14],[16]
PIK Rate		9.25%	[11],[13]		9.25%	[11],[13]		6.25%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 27,550
Ending balance	[11],[13]	$ 28,880			28,880
Investment, Identifier [Axis]: Binswanger Enterprises, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				120
Ending balance	[11]	580			580
Investment, Identifier [Axis]: Bluestem Brands, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				550
Ending balance	[8]	$ 0			$ 0
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.94%	[8]		13.94%	[8]		16%	[7],[16]
Spread		8.50%	[8]		8.50%	[8]		7.50%	[7],[16]
PIK Rate		12.94%	[8]		12.94%	[8]		15%	[7],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				$ 1,767
Ending balance	[8]	$ 164			$ 164
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		16%	[8],[13]		16%	[8],[13]		13.96%	[7],[16]
Spread		7.50%	[8],[13]		7.50%	[8],[13]		8.50%	[7],[16]
PIK Rate		15%	[8],[13]		15%	[8],[13]		12.96%	[7],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				$ 3,446
Ending balance	[8],[13]	$ 2,588			$ 2,588
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[8],[13]	13.94%			13.94%
Spread	[8],[13]	8.50%			8.50%
PIK Rate	[8],[13]	12.94%			12.94%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[13]	$ 3,589			$ 3,589
Investment, Identifier [Axis]: Bluestem Brands, Inc., Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[9]				120
Ending balance	[8],[10]	0			0
Investment, Identifier [Axis]: Boccella Precast Products LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(1,680)		(620)
Amount of Interest, Fees or Dividends Credited to Income					18		41
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,990		2,970
Gross Additions					0		0
Gross Reductions					1,680		620
Ending balance		$ 310	[19]	$ 2,350	$ 310	[19]	$ 2,350
Investment, Identifier [Axis]: Boccella Precast Products LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10%		10%	10%		10%	10%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(55)		0
Amount of Interest, Fees or Dividends Credited to Income					16		16
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					320		320
Gross Additions					0		0
Gross Reductions					55		0
Ending balance		$ 265		$ 320	$ 265		$ 320
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Class B Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		8%	[19]	8%	8%	[19]	8%	8%	[18]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					3,690		(300)
Amount of Interest, Fees or Dividends Credited to Income					1,390		2,137
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					31,020	[18]	31,420
Gross Additions					3,690		0
Gross Reductions					0		300
Ending balance		$ 34,710	[19]	$ 31,120	$ 34,710	[19]	31,120
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.43%			13.43%			14.48%	[16],[31]
Spread		8.05%			8.05%			9.11%	[16],[31]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(27)
Amount of Interest, Fees or Dividends Credited to Income					6,787
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[16],[31]				96,556
Gross Additions					7,563
Gross Reductions					1,283
Ending balance		$ 102,836			102,836
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							0
Gross Reductions							0
Ending balance		$ 0	[12]	$ 0	$ 0	[12]	$ 0
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.43%	[13],[32]	14.37%	13.43%	[13],[32]	14.37%
Spread		8.05%	[13],[32]	9.19%	8.05%	[13],[32]	9.19%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(71)
Amount of Interest, Fees or Dividends Credited to Income							6,976
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							99,194
Gross Additions							71
Gross Reductions							1,390
Ending balance		$ 102,836	[13],[32]	$ 97,875	$ 102,836	[13],[32]	97,875
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					95
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		0			0
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[33],[34]				0
Ending balance	[11],[35],[36]	0			0
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[33],[34]				500
Ending balance	[11],[35],[36]	$ 500			$ 500
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7%	[11],[12],[13],[35],[36]		7%	[11],[12],[13],[35],[36]		7%	[14],[15],[16],[33],[34]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16],[33],[34]				$ (25)
Ending balance	[11],[12],[13],[35],[36]	$ (22)			$ (22)
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.45%	[11],[13],[35],[36]		11.45%	[11],[13],[35],[36]		11.54%	[14],[16],[33],[34]
Spread		6%	[11],[13],[35],[36]		6%	[11],[13],[35],[36]		6%	[14],[16],[33],[34]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[33],[34]				$ 6,405
Ending balance	[11],[13],[35],[36]	$ 6,357			$ 6,357
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.45%	[11],[13],[35],[36]		13.45%	[11],[13],[35],[36]		13.54%	[14],[16],[33],[34]
Spread		8%	[11],[13],[35],[36]		8%	[11],[13],[35],[36]		8%	[14],[16],[33],[34]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[33],[34]				$ 6,405
Ending balance	[11],[13],[35],[36]	$ 6,357			$ 6,357
Investment, Identifier [Axis]: Brainworks Software, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.75%	[11],[13],[21],[28]		15.75%	[11],[13],[21],[28]		15.75%	[14],[16],[22],[27]
Spread		7.25%	[11],[13],[21],[28]		7.25%	[11],[13],[21],[28]		7.25%	[14],[16],[22],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[22],[27]				$ 761
Ending balance	[11],[13],[21],[28]	$ 761			$ 761
Investment, Identifier [Axis]: Brainworks Software, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.75%	[11],[13],[21],[28]		15.75%	[11],[13],[21],[28]		15.75%	[14],[16],[22],[27]
Spread		7.25%	[11],[13],[21],[28]		7.25%	[11],[13],[21],[28]		7.25%	[14],[16],[22],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[22],[27]				$ 1,075
Ending balance	[11],[13],[21],[28]	$ 750			750
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(320)		(720)
Amount of Interest, Fees or Dividends Credited to Income					60		60
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,620	[18]	7,080
Gross Additions					0		0
Gross Reductions					320		720
Ending balance		$ 5,300	[19]	$ 6,360	$ 5,300	[19]	$ 6,360
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.48%	[13]	15.17%	15.48%	[13]	15.17%	15.46%	[16]
Spread		10%	[13]	10%	10%	[13]	10%	10%	[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		(63)
Amount of Interest, Fees or Dividends Credited to Income					429		429
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,498	[16]	5,964
Gross Additions					14		0
Gross Reductions					248		311
Ending balance		$ 5,264	[13]	$ 5,653	5,264	[13]	5,653
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					50		50
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,000	[18],[29]	1,000
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 1,000	[19],[30]	$ 1,000	$ 1,000	[19],[30]	$ 1,000
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13%		13%	13%		13%	13%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					579		576
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					8,813		8,813
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 8,813		$ 8,813	$ 8,813		$ 8,813
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%		13%	13%		13%	13%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					66		65
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,000		1,000
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 1,000		$ 1,000	1,000		1,000
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[9]				4,290
Ending balance	[10]	4,230			4,230
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Warrants 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(25)		46
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,808		1,828
Gross Additions					0		46
Gross Reductions					25		0
Ending balance		1,783		1,874	1,783		1,874
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Warrants 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(35)		64
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,482		2,512
Gross Additions					0		64
Gross Reductions					35		0
Ending balance		2,447		$ 2,576	2,447		$ 2,576
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund III, LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[33],[37],[38]				4,080
Ending balance	[35],[39],[40]	3,614			3,614
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund IV, LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18],[33],[37],[38]				4,358
Ending balance	[19],[35],[39],[40]	4,308			4,308
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund V, LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18],[33],[37],[38]				2,448
Ending balance	[19],[35],[39],[40]	$ 2,711			$ 2,711
Investment, Identifier [Axis]: Buca C, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		6%		6%	6%		6%	6%
PIK Rate		6%		6%	6%		6%	6%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	0		$ 0
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate				12%			12%	12%	[27]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							1,044
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 12,144	[27]	12,337
Gross Additions							0
Gross Reductions							373
Ending balance				$ 11,964			11,964
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		14%			14%
PIK Rate		14%			14%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 58			$ 58
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 1.1
Schedule of Investments [Line Items]
Total Rate		14%			14%
PIK Rate		14%			14%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					563
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					12,144
Gross Additions					371
Gross Reductions					0
Ending balance		$ 12,515			$ 12,515
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[21],[28]	14%			14%
PIK Rate	[21],[28]	14%			14%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[21],[28]	$ 12,515			$ 12,515
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		14%			14%
PIK Rate		14%			14%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					58
Gross Reductions					0
Ending balance		$ 58			$ 58
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[16]							10.46%
Spread		5%	[11],[12],[13]		5%	[11],[12],[13]		5%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 465
Ending balance	[11],[12],[13]	$ 0			$ 0
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.44%	[11],[13]		10.44%	[11],[13]		10.46%	[14],[16]
Spread		5%	[11],[13]		5%	[11],[13]		5%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 19,681
Ending balance	[11],[13]	$ 19,885			19,885
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,789
Ending balance		2,227			2,227
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Ending balance		0			0
Investment, Identifier [Axis]: CBT Nuggets, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(590)		1,570
Amount of Interest, Fees or Dividends Credited to Income					1,235		1,647
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					50,130	[18]	49,002
Gross Additions					0		1,568
Gross Reductions					590		0
Ending balance		$ 49,540	[19]	50,570	$ 49,540	[19]	50,570
Investment, Identifier [Axis]: CMS Minerals Investments, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							99
Amount of Unrealized Gain/(Loss)							(366)
Amount of Interest, Fees or Dividends Credited to Income							44
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							1,670
Gross Additions							99
Gross Reductions							1,769
Ending balance				0			0
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7%	[11],[12],[13]		7%	[11],[12],[13]		7%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (66)
Ending balance	[11],[12],[13]	$ (57)			$ (57)
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread		7%	[11],[12],[13]		7%	[11],[12],[13]		7%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (66)
Ending balance	[11],[12],[13]	$ (57)			$ (57)
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.44%	[11],[13]		12.44%	[11],[13]		12.45%	[14],[16]
Spread		7%	[11],[13]		7%	[11],[13]		7%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 10,920
Ending balance	[11],[13]	$ 11,001			11,001
Investment, Identifier [Axis]: Café Brazil, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(189)		(80)
Amount of Interest, Fees or Dividends Credited to Income					20		103
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,980	[18]	2,210
Gross Additions					0		0
Gross Reductions					190		80
Ending balance		$ 1,790	[19]	2,130	$ 1,790	[19]	2,130
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Total Rate		15%	[19]		15%	[19]		15%	[18]
PIK Rate		15%	[19]		15%	[19]		15%	[18]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(2,060)
Amount of Interest, Fees or Dividends Credited to Income							125
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 4,601	[18]	25,495
Gross Additions							0
Gross Reductions							2,060
Ending balance		$ 10,173	[19]	$ 23,435	10,173	[19]	$ 23,435
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					125
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					15,695
Gross Additions					0
Gross Reductions					0
Ending balance		15,695			15,695
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Total Rate				15%			15%
PIK Rate				15%			15%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							301
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					15,695	[18]	3,994
Gross Additions							301
Gross Reductions							0
Ending balance		$ 15,695	[19]	$ 4,295	$ 15,695	[19]	$ 4,295
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Total Rate		15%			15%
PIK Rate		15%			15%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					572
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,601
Gross Additions					5,572
Gross Reductions					0
Ending balance		$ 10,173			$ 10,173
Investment, Identifier [Axis]: California Splendor Holdings LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14%		15.25%	14%		15.25%	15.69%	[16],[18]
Spread				10%			10%	10%	[16],[18]
PIK Rate		4%			4%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(79)		(7)
Amount of Interest, Fees or Dividends Credited to Income					2,088		2,127
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					27,655	[16],[18]	28,000
Gross Additions					299		7
Gross Reductions					79		7
Ending balance		$ 27,875		$ 28,000	27,875		28,000
Investment, Identifier [Axis]: California Splendor Holdings LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[12]	$ 0			$ 0
Investment, Identifier [Axis]: California Splendor Holdings LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14%			14%
PIK Rate		4%			4%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 27,875			$ 27,875
Investment, Identifier [Axis]: Career Team Holdings, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,500		4,500
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 4,500		$ 4,500	$ 4,500		$ 4,500
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.38%	[13]	11.25%	11.38%	[13]	11.25%	11.38%	[16]
Spread		6%	[13]	6%	6%	[13]	6%	6%	[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					53		10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					881	[16]	(9)
Gross Additions					1,803		451
Gross Reductions					1,800		0
Ending balance		$ 884	[13]	$ 442	$ 884	[13]	$ 442
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%		12.50%	13%		12.50%	13%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,330		1,293
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					19,906		20,090
Gross Additions					21		20
Gross Reductions					180		0
Ending balance		$ 19,747		$ 20,110	19,747		20,110
Investment, Identifier [Axis]: CaseWorthy, Inc., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				246
Ending balance	[11]	$ 490			490
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread	[14],[15],[16]							6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				(8)
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[14],[16]							11.61%
Spread	[14],[16]							6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				7,933
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[14],[16]							11.61%
Spread	[14],[16]							6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 6,102
Investment, Identifier [Axis]: Central Moloney, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.08%			12.08%
Spread	[11],[13]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 39,404			$ 39,404
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					460		1,700
Amount of Interest, Fees or Dividends Credited to Income					60		60
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					11,040		8,700
Gross Additions					460		1,700
Gross Reductions					0		0
Ending balance		$ 11,500		$ 10,400	$ 11,500		$ 10,400
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		10%	[12],[13]	9%	10%	[12],[13]	9%	9%	[15],[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					6		6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15],[16]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[12],[13]	$ 0	$ 0	[12],[13]	$ 0
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.48%	[13]	14.25%	15.48%	[13]	14.25%	14.48%	[16]
Spread		10%	[13]	9%	10%	[13]	9%	9%	[16]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							64
Amount of Interest, Fees or Dividends Credited to Income							1,058
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 17,574	[16]	14,954
Gross Additions							76
Gross Reductions							0
Ending balance		$ 20,462	[13]	$ 15,030	$ 20,462	[13]	15,030
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		15.48%			15.48%
Spread		10%			10%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					223
Amount of Interest, Fees or Dividends Credited to Income					1,383
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					21,974
Gross Reductions					1,512
Ending balance		$ 20,462			20,462
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(62)
Amount of Interest, Fees or Dividends Credited to Income					281
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					17,574
Gross Additions					0
Gross Reductions					17,574
Ending balance		0			0
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					710		1,020
Amount of Interest, Fees or Dividends Credited to Income					3,396		1,491
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					29,320	[18]	22,920
Gross Additions					710		1,020
Gross Reductions					0		0
Ending balance		30,030	[19]	23,940	30,030	[19]	23,940
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					290		120
Amount of Interest, Fees or Dividends Credited to Income					46		46
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,860	[18],[29]	2,710
Gross Additions					290		120
Gross Reductions					0		0
Ending balance		$ 3,150	[19],[30]	$ 2,830	$ 3,150	[19],[30]	$ 2,830
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6%	[12],[13]	6%	6%	[12],[13]	6%	6%	[15],[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(45)		77
Amount of Interest, Fees or Dividends Credited to Income					49		4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15],[16]	0
Gross Additions					45		0
Gross Reductions					45		0
Ending balance		$ 0	[12],[13]	$ 0	$ 0	[12],[13]	$ 0
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.49%	[13]	13.36%	13.49%	[13]	13.36%	13.49%	[16]
Spread		8%	[13]	8%	8%	[13]	8%	8%	[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(1)		(6)
Amount of Interest, Fees or Dividends Credited to Income					1,066		1,092
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					15,620	[16]	16,945
Gross Additions					1		6
Gross Reductions					1		544
Ending balance		$ 15,620	[13]	$ 16,407	$ 15,620	[13]	16,407
Investment, Identifier [Axis]: Chandler Signs Holdings, LLC, Class A Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							1,797
Amount of Unrealized Gain/(Loss)							(290)
Amount of Interest, Fees or Dividends Credited to Income							60
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							1,790
Gross Additions							1,797
Gross Reductions							3,587
Ending balance				0			0
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.58%	[11],[13],[20]		12.58%	[11],[13],[20]		12.60%	[14],[16],[41]
Spread		7%	[11],[13],[20]		7%	[11],[13],[20]		7%	[14],[16],[41]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[41]				$ 1,988
Ending balance	[11],[13],[20]	$ 4,394			$ 4,394
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.55%	[11],[13]		12.55%	[11],[13]		12.66%	[14],[16]
Spread		7%	[11],[13]		7%	[11],[13]		7%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 35,064
Ending balance	[11],[13]	$ 34,272			$ 34,272
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.55%	[11],[13]		12.55%	[11],[13]		12.66%	[14],[16]
Spread		7%	[11],[13]		7%	[11],[13]		7%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 1,943
Ending balance	[11],[13]	$ 1,899			$ 1,899
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		12.55%	[11],[13]		12.55%	[11],[13]		12.66%	[14],[16]
Spread		7%	[11],[13]		7%	[11],[13]		7%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 4,695
Ending balance	[11],[13]	$ 4,589			4,589
Investment, Identifier [Axis]: Charps, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(110)		460
Amount of Interest, Fees or Dividends Credited to Income					155		246
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					15,690	[18]	13,340
Gross Additions					0		460
Gross Reductions					110		0
Ending balance		$ 15,580	[19]	$ 13,800	$ 15,580	[19]	$ 13,800
Investment, Identifier [Axis]: Charps, LLC, Unsecured Debt
Schedule of Investments [Line Items]
Total Rate		10%		10%	10%		10%	10%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(244)		(17)
Amount of Interest, Fees or Dividends Credited to Income					528		300
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,694		5,694
Gross Additions					244		17
Gross Reductions					244		17
Ending balance		$ 5,694		$ 5,694	5,694		5,694
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1,010		(1,840)
Amount of Interest, Fees or Dividends Credited to Income					422		275
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,200	[18]	8,220
Gross Additions					1,010		0
Gross Reductions					0		1,840
Ending balance		6,210	[19]	6,380	6,210	[19]	6,380
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(179)		220
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,129	[29]	610
Gross Additions					0		519
Gross Reductions					179		0
Ending balance		950	[30]	1,129	950	[30]	1,129
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1		1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[12]	$ 0	$ 0	[12]	$ 0
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.50%		11.50%	11.50%		11.50%	11.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		(64)
Amount of Interest, Fees or Dividends Credited to Income					512		621
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					8,422		10,440
Gross Additions					0		18
Gross Reductions					621		824
Ending balance		$ 7,801		$ 9,634	$ 7,801		$ 9,634
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10%		10%	10%		10%	10%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					51		52
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,004		1,039
Gross Additions					0		0
Gross Reductions					19		17
Ending balance		$ 985		$ 1,022	985		1,022
Investment, Identifier [Axis]: Clarius BIGS, LLC, Secured Debt
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[22],[27]				16
Ending balance	[11],[21],[28]	16			16
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					10,365		0
Amount of Unrealized Gain/(Loss)					(7,771)		(6,410)
Amount of Interest, Fees or Dividends Credited to Income					1,470		4,745
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					16,000	[18]	24,637
Gross Additions					10,365		0
Gross Reductions					23,896		6,407
Ending balance		$ 2,469	[19]	$ 18,230	$ 2,469	[19]	$ 18,230
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				11.25%			11.25%	11.69%	[16]
Spread		6%		6%	6%		6%	6%	[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					181		260
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,560	[16]	4,560
Gross Additions					0		0
Gross Reductions					4,560		0
Ending balance		$ 0		$ 4,560	0		$ 4,560
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				8%			8%	8%
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					(50)		(21)
Amount of Interest, Fees or Dividends Credited to Income					654		797
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					19,274		19,274
Gross Additions					50		21
Gross Reductions					19,324		21
Ending balance		0		$ 19,274	0		19,274
Investment, Identifier [Axis]: Cody Pools, Inc., Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					2,010		6,940
Amount of Interest, Fees or Dividends Credited to Income					1,508		1,446
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					72,470	[18],[29]	58,180
Gross Additions					2,010		6,940
Gross Reductions					0		0
Ending balance		74,480	[19],[30]	65,120	74,480	[19],[30]	65,120
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					4		12
Amount of Interest, Fees or Dividends Credited to Income					31		2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15]	0
Gross Additions					1,264		0
Gross Reductions					1,264		0
Ending balance		$ 0	[12]	$ 0	$ 0	[12]	$ 0
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%		12.50%	12.50%		12.50%	12.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(6)		39
Amount of Interest, Fees or Dividends Credited to Income					2,604		582
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					42,073		0
Gross Additions					6		46,312
Gross Reductions					1,278		0
Ending balance		$ 40,801		$ 46,312	40,801		$ 46,312
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Spread				10.50%			10.50%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(19)
Amount of Interest, Fees or Dividends Credited to Income							96
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							1,462
Gross Additions							32
Gross Reductions							1,494
Ending balance				$ 0			$ 0
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Spread				10.50%			10.50%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(280)
Amount of Interest, Fees or Dividends Credited to Income							2,683
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							40,801
Gross Additions							0
Gross Reductions							40,801
Ending balance				$ 0			0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[19]	11,740			11,740
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(1,440)		1,440
Amount of Interest, Fees or Dividends Credited to Income					1,440		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,400		0
Gross Additions					0		2,400
Gross Reductions					2,400		0
Ending balance		0		2,400	0		2,400
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					4,060		(1,480)
Amount of Interest, Fees or Dividends Credited to Income					556		(1,179)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,680		9,160
Gross Additions					4,060		0
Gross Reductions					0		1,480
Ending balance		11,740		7,680	11,740		7,680
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					4		47
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15]	0
Gross Additions					0		1,600
Gross Reductions					0		1,600
Ending balance		$ 0	[12]	$ 0	$ 0	[12]	$ 0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%		12%	12%		12%	12%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					385		(500)
Amount of Interest, Fees or Dividends Credited to Income					1,246		1,406
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					21,627		23,151
Gross Additions					423		28
Gross Reductions					3,910		1,130
Ending balance		$ 18,140		$ 22,049	18,140		22,049
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(1,520)		(3,450)
Amount of Interest, Fees or Dividends Credited to Income					0		158
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					14,450	[18]	19,830
Gross Additions					0		0
Gross Reductions					1,520		3,450
Ending balance		$ 12,930	[19]	$ 16,380	$ 12,930	[19]	$ 16,380
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[13]	14.48%			14.48%
Spread	[13]	9%			9%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[13]	$ 3,097			$ 3,097
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		9%		9%	9%		9%	9%	[15],[16],[27]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15],[16],[27]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.48%		14.25%	14.48%		14.25%	14.48%	[16]
Spread		9%		9%	9%		9%	9%	[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		(5)
Amount of Interest, Fees or Dividends Credited to Income					247		355
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,454	[16]	5,241
Gross Additions					0		5
Gross Reductions					357		377
Ending balance		$ 3,097		$ 4,869	3,097		4,869
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					496
Amount of Interest, Fees or Dividends Credited to Income					120
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,454
Gross Additions					496
Gross Reductions					0
Ending balance		$ 7,950			$ 7,950
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.50%			13.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					42
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				0
Gross Additions					1,584
Gross Reductions					0
Ending balance		$ 1,584			$ 1,584
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%			13.50%			13.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					1,191
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					17,034
Gross Additions					17
Gross Reductions					0
Ending balance		$ 17,051			$ 17,051
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.47%	[11],[13],[20]		13.47%	[11],[13],[20]		13.52%	[14],[16],[42]
Spread		8%	[11],[13],[20]		8%	[11],[13],[20]		8%	[14],[16],[42]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[42]				$ 4,848
Ending balance	[11],[13],[20]	$ 5,911			$ 5,911
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[14],[16]							13.52%
Spread		8%	[11],[12],[13]		8%	[11],[12],[13]		8%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 17,757
Ending balance	[11],[12],[13]	$ (149)			$ (149)
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	13.47%			13.47%
Spread	[11],[13]	8%			8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 17,906			$ 17,906
Investment, Identifier [Axis]: Congruent Credit Opportunities Funds, LP Interests (Congruent Credit Opportunities Fund III, LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18],[33],[37],[38]				4,352
Ending balance	[19],[35],[39],[40]	2,542			2,542
Investment, Identifier [Axis]: Congruent Credit Opportunities Funds, LP Interests (Congruent Credit Opportunities Fund III, LP)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(51)		(223)
Amount of Interest, Fees or Dividends Credited to Income					152		316
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,352		7,657
Gross Additions					0		0
Gross Reductions					1,810		2,095
Ending balance		2,542		5,562	2,542		5,562
Investment, Identifier [Axis]: Construction Supply Investments, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				23,135
Ending balance	[11]	22,430			22,430
Investment, Identifier [Axis]: Copper Trail Fund Investments, LP Interests (CTMH, LP)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					568	[18],[33],[37],[38]	588
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 568	[19],[35],[39],[40]	588	$ 568	[19],[35],[39],[40]	588
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[13],[36]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13],[36]	$ 389			$ 389
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13],[36]	11.83%			11.83%
Spread	[11],[13],[36]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13],[36]	$ 10,476			$ 10,476
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13],[36]	12.01%			12.01%
Spread	[11],[13],[36]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13],[36]	$ 31,392			$ 31,392
Investment, Identifier [Axis]: Creative Foam Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	5.75%			5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (302)			$ (302)
Investment, Identifier [Axis]: Creative Foam Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.09%			11.09%
Spread	[11],[13]	5.75%			5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 105,508			$ 105,508
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1,020		0
Amount of Interest, Fees or Dividends Credited to Income					1,041		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					15,000		0
Gross Additions					1,020		15,000
Gross Reductions					0		0
Ending balance		16,020	[19]	15,000	16,020	[19]	15,000
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					5		2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[12]	$ 0	$ 0	[12]	$ 0
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%		13%	13%		13%	13%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,881		1,042
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					28,389		0
Gross Additions					35		28,720
Gross Reductions					975		0
Ending balance		$ 27,449		$ 28,720	27,449		28,720
Investment, Identifier [Axis]: DMA Industries, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(1,716)		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,660		7,260
Gross Additions					3,068		0
Gross Reductions					1,716		0
Ending balance		$ 9,012		$ 7,260	9,012		$ 7,260
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate				12%			12%	12%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(21)
Amount of Interest, Fees or Dividends Credited to Income							1,272
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 18,800		21,200
Gross Additions							21
Gross Reductions							1,221
Ending balance				$ 20,000			20,000
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%			12%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 560			$ 560
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 1.1
Schedule of Investments [Line Items]
Total Rate		12%			12%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(28)
Amount of Interest, Fees or Dividends Credited to Income					1,139
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					18,800
Gross Additions					28
Gross Reductions					2,028
Ending balance		$ 16,800			$ 16,800
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%			12%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 16,800			$ 16,800
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		12%			12%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					6
Amount of Interest, Fees or Dividends Credited to Income					8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					560
Gross Reductions					0
Ending balance		$ 560			$ 560
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class A Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		8%	[11]		8%	[11]		8%	[14]
PIK Rate		8%	[11]		8%	[11]		8%	[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				$ 260
Ending balance	[11]	$ 0			$ 0
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class AA Preferred Member Units (non-voting)
Schedule of Investments [Line Items]
Total Rate		10%	[11],[19]		10%	[11],[19]		10%	[14],[18]
PIK Rate		10%	[11],[19]		10%	[11],[19]		10%	[14],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[18]				$ 1,284
Ending balance	[11],[19]	$ 855			855
Investment, Identifier [Axis]: Dalton US Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				830
Ending balance	[11]	830			830
Investment, Identifier [Axis]: Datacom, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					130		(320)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					70		2,670
Gross Additions					130		0
Gross Reductions					0		320
Ending balance		$ 200		$ 2,350	$ 200		$ 2,350
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		7.50%		7.50%	7.50%		7.50%	7.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					14		18
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					447		223
Gross Additions					226		583
Gross Reductions					405		90
Ending balance		$ 268		$ 716	$ 268		$ 716
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		10%	10%		10%	10%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					491		507
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,587		7,789
Gross Additions					73		78
Gross Reductions					135		135
Ending balance		$ 7,525		$ 7,732	7,525		7,732
Investment, Identifier [Axis]: Digital Products Holdings LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					100		100
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					9,835	[18]	9,835
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 9,835	[19]	$ 9,835	$ 9,835	[19]	$ 9,835
Investment, Identifier [Axis]: Digital Products Holdings LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.38%	[13]	15.25%	15.38%	[13]	15.25%	15.38%	[16]
Spread		10%	[13]	10%	10%	[13]	10%	10%	[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,116		1,141
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					14,690	[16]	15,523
Gross Additions					34		0
Gross Reductions					1,453		790
Ending balance		$ 13,271	[13]	$ 14,733	13,271	[13]	14,733
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(1,140)		1,130
Amount of Interest, Fees or Dividends Credited to Income					0		343
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					20,740	[18]	22,220
Gross Additions					0		1,130
Gross Reductions					1,140		0
Ending balance		19,600		23,350	19,600		23,350
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate								14%
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(14)		(14)
Amount of Interest, Fees or Dividends Credited to Income					48		23
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,233		0
Gross Additions					1,289		14
Gross Reductions					2,522		14
Ending balance		$ 0	[12]	$ 0	$ 0	[12]	$ 0
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14%		13%	14%		13%	14%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(23)		(35)
Amount of Interest, Fees or Dividends Credited to Income					1,797		1,876
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					25,543		27,267
Gross Additions					23		35
Gross Reductions					843		837
Ending balance		$ 24,723		$ 26,465	24,723		26,465
Investment, Identifier [Axis]: Dos Rios Partners, LP Interests (Dos Rios Partners - A, LP)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		241
Amount of Unrealized Gain/(Loss)					35		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,631	[33],[37],[38]	2,898
Gross Additions					35		241
Gross Reductions					45		287
Ending balance		2,621	[35],[39],[40]	2,852	2,621	[35],[39],[40]	2,852
Investment, Identifier [Axis]: Dos Rios Partners, LP Interests (Dos Rios Partners, LP)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		757
Amount of Unrealized Gain/(Loss)					111		156
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					8,443	[33],[37],[38]	9,127
Gross Additions					111		915
Gross Reductions					142		904
Ending balance		8,412	[35],[39],[40]	9,138	8,412	[35],[39],[40]	9,138
Investment, Identifier [Axis]: Dos Rios Stone Products LLC, Class A Preferred Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(250)		250
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,580	[14],[29]	1,330
Gross Additions					0		250
Gross Reductions					250		0
Ending balance		$ 1,330	[11],[30]	1,580	$ 1,330	[11],[30]	1,580
Investment, Identifier [Axis]: Dreyfus Government Cash Management
Schedule of Investments [Line Items]
Total Rate		4.94%			4.94%			4.98%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[43]				$ 13,476
Ending balance	[44]	$ 2,226			2,226
Investment, Identifier [Axis]: Dynamic Communities, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				0
Ending balance	[11]	0			0
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				60
Ending balance	[11]	60			60
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				0
Ending balance	[11]	$ 0			$ 0
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.44%	[11],[13]		11.44%	[11],[13]		10.45%	[14],[16]
Spread		6%	[11],[13]		6%	[11],[13]		5%	[14],[16]
PIK Rate		11.44%	[11],[13]		11.44%	[11],[13]		10.45%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 1,912
Ending balance	[11],[13]	$ 2,026			$ 2,026
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.44%	[11],[13]		13.44%	[11],[13]		12.45%	[14],[16]
Spread		8%	[11],[13]		8%	[11],[13]		7%	[14],[16]
PIK Rate		13.44%	[11],[13]		13.44%	[11],[13]		12.45%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 1,859
Ending balance	[11],[13]	$ 1,998			$ 1,998
Investment, Identifier [Axis]: Dynata, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[8],[13]	14.21%			14.21%
Spread	[8],[13]	8.75%			8.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[13]	$ 653			$ 653
Investment, Identifier [Axis]: EIG Fund Investments, LP Interests (EIG Global Private Debt Fund-A, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		16
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					42		43
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					760	[18],[33],[37],[38]	1,013
Gross Additions					1		16
Gross Reductions					0		55
Ending balance		$ 761	[19],[35],[40]	974	$ 761	[19],[35],[40]	974
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.49%	[11],[13],[20]		13.49%	[11],[13],[20]		13.50%	[14],[16]
Spread		8%	[11],[13],[20]		8%	[11],[13],[20]		8%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 927
Ending balance	[11],[13],[20]	$ 2,692			$ 2,692
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.48%	[11],[13]		13.48%	[11],[13]		13.50%	[14],[16]
Spread		8%	[11],[13]		8%	[11],[13]		8%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 4,596
Ending balance	[11],[13]	$ 4,193			$ 4,193
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.48%	[11],[13]		13.48%	[11],[13]		13.50%	[14],[16]
Spread		8%	[11],[13]		8%	[11],[13]		8%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 9,167
Ending balance	[11],[13]	$ 8,364			$ 8,364
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		13.48%	[11],[13]		13.48%	[11],[13]		13.50%	[14],[16]
Spread		8%	[11],[13]		8%	[11],[13]		8%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 1,901
Ending balance	[11],[13]	$ 1,735			$ 1,735
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate		13.48%	[11],[13]		13.48%	[11],[13]		13.50%	[14],[16]
Spread		8%	[11],[13]		8%	[11],[13]		8%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 10,403
Ending balance	[11],[13]	$ 9,492			9,492
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(360)		364
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,090		7,603
Gross Additions					0		364
Gross Reductions					360		1,877
Ending balance		5,730		6,090	5,730		6,090
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					80		112
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,670	[29]	1,558
Gross Additions					80		112
Gross Reductions					0		0
Ending balance		$ 1,750	[30]	$ 1,670	$ 1,750	[30]	$ 1,670
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6%	[12],[13]	6%	6%	[12],[13]	6%	6%	[15],[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					4		4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(7)	[15],[16]	(9)
Gross Additions					1		1
Gross Reductions					0		0
Ending balance		$ (6)	[12],[13]	$ (8)	$ (6)	[12],[13]	$ (8)
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%		12%	12%		12%	12%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,133		1,151
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					18,632		18,594
Gross Additions					21		19
Gross Reductions					469		0
Ending balance		$ 18,184		$ 18,613	$ 18,184		$ 18,613
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		9%		9%	9%		9%	9%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					285		287
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,252		6,294
Gross Additions					2		1
Gross Reductions					24		21
Ending balance		$ 6,230		$ 6,274	$ 6,230		6,274
Investment, Identifier [Axis]: Emerald Technologies Acquisition Co, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.75%	[8],[13]		11.75%	[8],[13]		11.79%	[7],[16]
Spread		6.25%	[8],[13]		6.25%	[8],[13]		6.25%	[7],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				$ 8,158
Ending balance	[8],[13]	$ 8,744			8,744
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Energy Capital Fund IX, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18],[33],[37],[38]				1,720
Ending balance	[19],[35],[39],[40]	1,127			1,127
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Energy Capital Fund VIII Co-Investors, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18],[33],[37],[38]				899
Ending balance	[19],[35],[39],[40]	899			899
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Energy Capital Fund VIII, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18],[33],[37],[38]				1,918
Ending balance	[19],[35],[39],[40]	1,843			1,843
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Energy Capital Fund X, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18],[33],[37],[38]				5,858
Ending balance	[19],[35],[39],[40]	6,081			6,081
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Energy Capital Fund XII, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[35],[39],[40]	4,391			4,391
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Flatrock Midstream Fund II, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18],[33],[37],[38]				1,413
Ending balance	[19],[35],[39],[40]	1,566			1,566
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Flatrock Midstream Fund III, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18],[33],[37],[38]				4,056
Ending balance	[19],[35],[39],[40]	$ 3,939			$ 3,939
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13],[20]	14%			14%
Spread		5.50%	[11],[13],[20]		5.50%	[11],[13],[20]		5.50%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ 0
Ending balance	[11],[13],[20]	$ 328			$ 328
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.94%	[11],[13]		11.94%	[11],[13]		11.98%	[14],[16]
Spread		6.50%	[11],[13]		6.50%	[11],[13]		6.50%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 16,134
Ending balance	[11],[13]	$ 15,827			15,827
Investment, Identifier [Axis]: Escalent, Inc., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				730
Ending balance	[11]	$ 780			$ 780
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		8%	[11],[12],[13]		8%	[11],[12],[13]		8%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (35)
Ending balance	[11],[12],[13]	$ (31)			$ (31)
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.43%	[11],[13]		13.43%	[11],[13]		13.45%	[14],[16]
Spread		8%	[11],[13]		8%	[11],[13]		8%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 26,313
Ending balance	[11],[13]	$ 26,180			$ 26,180
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.60%	[11],[13]		13.60%	[11],[13]		12.61%	[14],[16]
Spread		8%	[11],[13]		8%	[11],[13]		7%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 3,626
Ending balance	[11],[13]	$ 3,692			$ 3,692
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.60%	[11],[13]		13.60%	[11],[13]		12.61%	[14],[16]
Spread		8%	[11],[13]		8%	[11],[13]		7%	[14],[16]
PIK Rate	[11],[13]	8%			8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 43,373
Ending balance	[11],[13]	$ 45,712			$ 45,712
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC (Supplycore), Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%			13%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 28,691			$ 28,691
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC (Supplycore), Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[10]	$ 3,920			$ 3,920
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%			13%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					1,198
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					28,691
Gross Reductions					0
Ending balance		$ 28,691			28,691
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC, Warrants
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					3,920
Gross Reductions					0
Ending balance		$ 3,920			$ 3,920
Investment, Identifier [Axis]: Fidelity Government Fund
Schedule of Investments [Line Items]
Total Rate		4.97%			4.97%			5.01%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[45]	$ 2,307			$ 2,307
Investment, Identifier [Axis]: Fidelity Government Fund
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[46]				$ 1,678
Investment, Identifier [Axis]: Fidelity Treasury
Schedule of Investments [Line Items]
Total Rate		4.95%			4.95%			4.99%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[47]				$ 70
Ending balance	[48]	$ 1,353			1,353
Investment, Identifier [Axis]: Flame King Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					7,850		6,770
Amount of Interest, Fees or Dividends Credited to Income					1,570		2,050
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					27,900	[18]	17,580
Gross Additions					7,850		6,770
Gross Reductions					0		0
Ending balance		35,750	[19]	$ 24,350	35,750	[19]	$ 24,350
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread				6.50%			6.50%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(60)
Amount of Interest, Fees or Dividends Credited to Income							484
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							7,600
Gross Additions							60
Gross Reductions							7,660
Ending balance				$ 0			$ 0
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread				9%			9%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(162)
Amount of Interest, Fees or Dividends Credited to Income							1,583
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							21,200
Gross Additions							162
Gross Reductions							21,362
Ending balance				$ 0			0
Investment, Identifier [Axis]: Freeport Financial Funds, LP Interests (Freeport Financial SBIC Fund LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[33],[37],[38]				3,012
Ending balance	[35],[39],[40]	2,656			2,656
Investment, Identifier [Axis]: Freeport Financial Funds, LP Interests (Freeport First Lien Loan Fund III LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18],[33],[37],[38]				3,704
Ending balance	[19],[35],[39],[40]	2,596			2,596
Investment, Identifier [Axis]: Freeport Financial SBIC Fund LP, LP Interests (Freeport Financial SBIC Fund LP)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(77)		145
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,012		3,483
Gross Additions					0		145
Gross Reductions					356		0
Ending balance		2,656		3,628	2,656		3,628
Investment, Identifier [Axis]: Freeport Financial SBIC Fund LP, LP Interests (Freeport First Lien Loan Fund III LP)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					255		291
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,704		5,848
Gross Additions					1		0
Gross Reductions					1,109		536
Ending balance		2,596		5,312	2,596		5,312
Investment, Identifier [Axis]: Fuse, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				0
Ending balance	[8]	$ 0			$ 0
Investment, Identifier [Axis]: Fuse, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12%	[8]		12%	[8]		12%	[7]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				$ 1,320
Ending balance	[8]	$ 1,076			1,076
Investment, Identifier [Axis]: GFG Group, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(1,650)		1,170
Amount of Interest, Fees or Dividends Credited to Income					781		102
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					11,460	[18]	7,140
Gross Additions					0		1,170
Gross Reductions					1,650		0
Ending balance		$ 9,810	[19]	$ 8,310	$ 9,810	[19]	$ 8,310
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		8%		9%	8%		9%	8%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(10)		(12)
Amount of Interest, Fees or Dividends Credited to Income					388		525
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					9,345		11,345
Gross Additions					10		12
Gross Reductions					10		12
Ending balance		$ 9,345		$ 11,345	9,345		11,345
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					84		84
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					44,440		44,440
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 44,440	[19]	$ 44,440	$ 44,440	[19]	$ 44,440
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.48%		11.17%	11.48%		11.17%	11.48%
Spread		6%		6%	6%		6%	6%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					2		0
Amount of Interest, Fees or Dividends Credited to Income					163		66
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,400		670
Gross Additions					746		630
Gross Reductions					0		0
Ending balance		$ 3,146		$ 1,300	$ 3,146		$ 1,300
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.48%		13.17%	13.48%		13.17%	13.48%
Spread		8%		8%	8%		8%	8%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(23)		(23)
Amount of Interest, Fees or Dividends Credited to Income					2,782		2,624
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					40,493		40,493
Gross Additions					23		23
Gross Reductions					23		23
Ending balance		$ 40,493		$ 40,493	$ 40,493		40,493
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[16],[49]							11.96%
Spread		6.50%	[11],[12],[13]		6.50%	[11],[12],[13]		6.50%	[14],[16],[49]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[49]				$ 1,545
Ending balance	[11],[12],[13]	$ (9)			(9)
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[14],[15],[16]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				(9)
Ending balance	[11],[12]	$ (5)			$ (5)
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.94%	[11],[13]		11.94%	[11],[13]		11.96%	[14],[16]
Spread		6.50%	[11],[13]		6.50%	[11],[13]		6.50%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 10,624
Ending balance	[11],[13]	$ 10,568			$ 10,568
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		11.94%	[11],[13]		11.94%	[11],[13]		11.96%	[14],[16]
Spread		6.50%	[11],[13]		6.50%	[11],[13]		6.50%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 952
Ending balance	[11],[13]	$ 947			$ 947
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate		11.94%	[11],[13]		11.94%	[11],[13]		11.96%	[14],[16]
Spread		6.50%	[11],[13]		6.50%	[11],[13]		6.50%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 227
Ending balance	[11],[13]	$ 226			$ 226
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.48%	[11],[13],[20]		11.48%	[11],[13],[20]		11.28%	[14],[16],[50]
Spread		6%	[11],[13],[20]		6%	[11],[13],[20]		5.75%	[14],[16],[50]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[50]				$ 454
Ending balance	[11],[13],[20]	$ 703			$ 703
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.45%	[11],[13]		11.45%	[11],[13]		11.38%	[14],[16]
Spread		6%	[11],[13]		6%	[11],[13]		5.75%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 301
Ending balance	[11],[13]	$ 297			$ 297
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.48%	[11],[13]		11.48%	[11],[13]		11.25%	[14],[16]
Spread		6%	[11],[13]		6%	[11],[13]		5.75%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 3,615
Ending balance	[11],[13]	$ 3,561			3,561
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					9,840		19,270
Amount of Interest, Fees or Dividends Credited to Income					3,001		2,904
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					96,710	[18]	50,890
Gross Additions					9,840		19,270
Gross Reductions					0		0
Ending balance		$ 106,550	[19]	$ 70,160	$ 106,550	[19]	$ 70,160
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.50%	[12],[13],[25]	8.50%	7.50%	[12],[13],[25]	8.50%	7.50%	[15],[16],[26]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					3		3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15],[16],[26]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[12],[13],[25]	$ 0	$ 0	[12],[13],[25]	$ 0
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.50%	[13],[25]	11%	10.50%	[13],[25]	11%	10.50%	[16],[26]
Spread		7.50%	[13],[25]	8%	7.50%	[13],[25]	8%	7.50%	[16],[26]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(61)		(64)
Amount of Interest, Fees or Dividends Credited to Income					2,763		3,598
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					54,078	[16],[26]	64,078
Gross Additions					61		64
Gross Reductions					4,861		4,464
Ending balance		$ 49,278	[13],[25]	$ 59,678	49,278	[13],[25]	59,678
Investment, Identifier [Axis]: Garreco, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(220)
Amount of Interest, Fees or Dividends Credited to Income					43		25
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,580		1,800
Gross Additions					0		0
Gross Reductions					0		220
Ending balance		$ 1,580	[19]	$ 1,580	$ 1,580	[19]	$ 1,580
Investment, Identifier [Axis]: Garreco, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate				12%			12%	9.50%	[16],[51]
Spread		8%		10%	8%		10%	8%	[16],[51]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					92		218
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,088	[16],[51]	3,826
Gross Additions					0		0
Gross Reductions					3,088		554
Ending balance		$ 0		$ 3,272	0		3,272
Investment, Identifier [Axis]: Garyline, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				706
Ending balance	[11]	$ 810			$ 810
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.93%			11.93%
Spread		6.50%	[11],[13]		6.50%	[11],[13]		6.75%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (256)
Ending balance	[11],[13]	$ 2,812			$ 2,812
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.93%	[11],[13]		11.93%	[11],[13]		12.22%	[14],[16]
Spread		6.50%	[11],[13]		6.50%	[11],[13]		6.75%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 31,529
Ending balance	[11],[13]	$ 32,178			32,178
Investment, Identifier [Axis]: Gulf Manufacturing, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					5,910		1,210
Amount of Interest, Fees or Dividends Credited to Income					1,092		1,351
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					9,070	[18]	6,790
Gross Additions					5,910		1,210
Gross Reductions					0		0
Ending balance		$ 14,980	[19],[35],[36]	8,000	$ 14,980	[19],[35],[36]	8,000
Investment, Identifier [Axis]: Gulf Manufacturing, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[12],[35],[36]	7.63%			7.63%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					47
Amount of Interest, Fees or Dividends Credited to Income					111
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance	[12],[35],[36]	$ 0			$ 0
Investment, Identifier [Axis]: Gulf Manufacturing, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[35],[36]	13%			13%
Spread	[35],[36]	7.63%			7.63%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					373
Amount of Interest, Fees or Dividends Credited to Income					2,887
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					40,000
Gross Reductions					0
Ending balance	[35],[36]	$ 40,000			40,000
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0		0	0		0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(2,460)		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,460		3,780
Gross Additions					0		0
Gross Reductions					2,460		0
Ending balance		$ 0		$ 3,780	$ 0		$ 3,780
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		9.50%	[12],[13],[21]	9.50%	9.50%	[12],[13],[21]	9.50%	9.50%	[15],[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15],[16]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[12],[13],[21]	$ 0	$ 0	[12],[13],[21]	$ 0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%	[21]	12.50%	12.50%	[21]	12.50%	12.50%
PIK Rate	[21]	12.50%			12.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(336)		0
Amount of Interest, Fees or Dividends Credited to Income					76		151
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,284		2,284
Gross Additions					0		0
Gross Reductions					336		0
Ending balance		$ 1,948	[21]	$ 2,284	1,948	[21]	2,284
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	$ 0			$ 0
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		9.10%	[11],[13]		9.10%	[11],[13]		14.34%	[14],[16],[27]
Spread		3.50%	[11],[13]		3.50%	[11],[13]		9.50%	[14],[16],[27]
PIK Rate		2.50%	[11],[13]		2.50%	[11],[13]		14.34%	[14],[16],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[27]				$ 336
Ending balance	[11],[13]	$ 2,264			$ 2,264
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		2.50%	[11],[21]		2.50%	[11],[21]		14.34%	[14],[16],[27]
Spread	[14],[16],[27]							9.50%
PIK Rate		2.50%	[11],[21]		2.50%	[11],[21]		14.34%	[14],[16],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[27]				$ 3,406
Ending balance	[11],[21]	$ 638			$ 638
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.50%	[11],[12],[13]		6.50%	[11],[12],[13]		6.50%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (48)
Ending balance	[11],[12],[13]	$ (42)			$ (42)
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.84%	[11],[13]		11.84%	[11],[13]		11.86%	[14],[16]
Spread		6.50%	[11],[13]		6.50%	[11],[13]		6.50%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 6,733
Ending balance	[11],[13]	$ 6,699			$ 6,699
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[14],[16]							11.86%
Spread		6.50%	[12],[13]		6.50%	[12],[13]		6.50%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 16,622
Ending balance	[12],[13]	$ (66)			$ (66)
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.84%			11.84%
Spread	[11],[13]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 16,537			$ 16,537
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.83%			11.83%
Spread	[11],[13]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 8,080			$ 8,080
Investment, Identifier [Axis]: HOWLCO LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.98%	[8],[13],[35],[36]		11.98%	[8],[13],[35],[36]		11.53%	[7],[16],[33],[34]
Spread		6.50%	[8],[13],[35],[36]		6.50%	[8],[13],[35],[36]		6%	[7],[16],[33],[34]
PIK Rate	[8],[13],[35],[36]	3.50%			3.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16],[33],[34]				$ 24,397
Ending balance	[8],[13],[35],[36]	$ 25,494			25,494
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (423 COR, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					675
Amount of Interest, Fees or Dividends Credited to Income					88
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,869
Gross Additions					2,175
Gross Reductions					0
Ending balance		4,044			4,044
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (423 COR, LP)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							117
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							1,400
Gross Additions							0
Gross Reductions							0
Ending balance				1,400			1,400
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 3, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					247		283
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,225		4,331
Gross Additions					247		283
Gross Reductions					0		508
Ending balance		4,472		4,106	4,472		4,106
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 4, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					329		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,773		2,332
Gross Additions					1,211		464
Gross Reductions					0		0
Ending balance		4,984		2,796	4,984		2,796
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 GRE-LP, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[35],[39],[40]	441			441
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 HPP-MS, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[33],[37],[38]				315
Ending balance	[35],[39],[40]	374			374
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 MH, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18],[33],[37],[38]				6,050
Ending balance	[19],[35],[39],[40]	8,991			8,991
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (423 COR, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18],[33],[37],[38]				1,869
Ending balance	[19],[35],[39],[40]	4,044			4,044
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (423 HAR, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[33],[37],[38]				996
Ending balance	[35],[39],[40]	1,048			1,048
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (HPEP 3, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[33],[37],[38]				4,225
Ending balance	[19],[35],[39],[40]	4,472			4,472
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (HPEP 4, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[33],[37],[38]				3,773
Ending balance	[35],[39],[40]	4,984			4,984
Investment, Identifier [Axis]: Harrison Hydra-Gen, Ltd., Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					560		210
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,660		3,280
Gross Additions					560		210
Gross Reductions					0		0
Ending balance		5,220		3,490	5,220		3,490
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					600		0
Amount of Interest, Fees or Dividends Credited to Income					0		131
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					17,460		17,460
Gross Additions					600		0
Gross Reductions					0		0
Ending balance		18,060	[19]	17,460	18,060	[19]	17,460
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					30		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					920	[29]	920
Gross Additions					30		0
Gross Reductions					0		0
Ending balance		$ 950	[30]	$ 920	$ 950	[30]	$ 920
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.48%	[13]	11.53%	11.48%	[13]	11.53%	11.65%	[16]
Spread		6%	[13]	6%	6%	[13]	6%	6%	[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					142		173
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,974	[16]	3,185
Gross Additions					3,876		4,581
Gross Reductions					3,760		4,100
Ending balance		$ 2,090	[13]	$ 3,666	$ 2,090	[13]	$ 3,666
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%		12.50%	12.50%		12.50%	12.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(27)		4
Amount of Interest, Fees or Dividends Credited to Income					2,887		2,173
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					45,256		37,800
Gross Additions					27		4,142
Gross Reductions					27		0
Ending balance		$ 45,256		$ 41,942	45,256		41,942
Investment, Identifier [Axis]: Houston Plating and Coatings, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(130)		1,160
Amount of Interest, Fees or Dividends Credited to Income					34		2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,340	[18]	2,400
Gross Additions					0		1,160
Gross Reductions					130		0
Ending balance		$ 3,210	[19]	$ 3,560	$ 3,210	[19]	$ 3,560
Investment, Identifier [Axis]: Houston Plating and Coatings, LLC, Unsecured Convertible Debt
Schedule of Investments [Line Items]
Total Rate		8%		8%	8%		8%	8%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					60		(170)
Amount of Interest, Fees or Dividends Credited to Income					121		121
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,880		3,000
Gross Additions					60		0
Gross Reductions					0		170
Ending balance		$ 2,940		$ 2,830	$ 2,940		$ 2,830
Investment, Identifier [Axis]: Hybrid Promotions, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.81%	[11],[13]		15.81%	[11],[13]		15.91%	[14],[16]
Spread		8.25%	[11],[13]		8.25%	[11],[13]		8.25%	[14],[16]
PIK Rate		2%	[11],[13]		2%	[11],[13]		2%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 6,581
Ending balance	[11],[13]	$ 7,196			7,196
Investment, Identifier [Axis]: I-45 SLF LLC, Member Units (Fully diluted 20.0%; 21.75% profits interest)
Schedule of Investments [Line Items]
Diluted, percentage (as a percent)	[33],[38]							20%
Profits, percentage (as a percent)	[33],[38]							21.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18],[33],[38]				$ 13,490
Investment, Identifier [Axis]: I-45 SLF LLC, Member Units (Fully diluted 20.0%; 21.75% profits interest)
Schedule of Investments [Line Items]
Diluted, percentage (as a percent)		20%		20%	20%		20%
Profits, percentage (as a percent)		21.75%		21.75%	21.75%		21.75%
Amount of Realized Gain/(Loss)					$ (7,107)		$ 0
Amount of Unrealized Gain/(Loss)					6,710		(1,207)
Amount of Interest, Fees or Dividends Credited to Income					429		1,123
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					13,490		11,758
Gross Additions					0		1,200
Gross Reductions					13,490		1,207
Ending balance		$ 0		$ 11,751	0		11,751
Investment, Identifier [Axis]: IG Investor, LLC, Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					14,400		0
Gross Additions					0		15,096
Gross Reductions					0		0
Ending balance		14,400		15,096	14,400		15,096
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					14		84
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(35)	[15]	0
Gross Additions					4		761
Gross Reductions					0		800
Ending balance		$ (31)	[12]	$ (39)	$ (31)	[12]	$ (39)
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%		13%	13%		13%	13%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					2,448		896
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					36,934		0
Gross Additions					42		37,333
Gross Reductions					880		0
Ending balance		$ 36,096		$ 37,333	$ 36,096		$ 37,333
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread		5.75%	[8],[12],[13]		5.75%	[8],[12],[13]		5.75%	[7],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15],[16]				$ 0
Ending balance	[8],[12],[13]	$ 0			$ 0
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.19%	[8],[13]		11.19%	[8],[13]		10.96%	[7],[16]
Spread		5.75%	[8],[13]		5.75%	[8],[13]		5.50%	[7],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				$ 9,399
Ending balance	[8],[13]	$ 10,154			$ 10,154
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.19%	[8],[13]		11.19%	[8],[13]		10.96%	[7],[16]
Spread		5.75%	[8],[13]		5.75%	[8],[13]		5.50%	[7],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				$ 4,953
Ending balance	[8],[13]	$ 4,928			$ 4,928
Investment, Identifier [Axis]: INW Manufacturing, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.35%	[8],[13]		11.35%	[8],[13]		11.36%	[7],[16]
Spread		5.75%	[8],[13]		5.75%	[8],[13]		5.75%	[7],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				$ 5,325
Ending balance	[8],[13]	$ 5,868			$ 5,868
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		16.46%	[13]		16.46%	[13]		16.59%	[16]
Spread		9%	[13]	9%	9%	[13]	9%	9%	[16]
PIK Rate		2%	[13]	2%	2%	[13]	2%	2%	[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					86		12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					816	[16]	0
Gross Additions					365		0
Gross Reductions					0		12
Ending balance		$ 1,181	[13]	$ (12)	$ 1,181	[13]	$ (12)
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		16.46%	[13]		16.46%	[13]		16.59%	[16]
Spread		9%	[13]	9%	9%	[13]	9%	9%	[16]
PIK Rate		2%	[13]	2%	2%	[13]	2%	2%	[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					63		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					697	[16]	0
Gross Additions					10		0
Gross Reductions					0		10
Ending balance		$ 707	[13]	$ (10)	$ 707	[13]	$ (10)
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		15.46%	[13]	15.38%	15.46%	[13]	15.38%	15.59%	[16]
Spread		8%	[13]	8%	8%	[13]	8%	8%	[16]
PIK Rate		2%	[13]	2%	2%	[13]	2%	2%	[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					476		84
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,430	[16]	0
Gross Additions					177		3,252
Gross Reductions					0		0
Ending balance		$ 3,607	[13]	$ 3,252	$ 3,607	[13]	$ 3,252
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		17.46%	[13]	17.38%	17.46%	[13]	17.38%	17.59%	[16]
Spread		10%	[13]	10%	10%	[13]	10%	10%	[16]
PIK Rate		2%	[13]	2%	2%	[13]	2%	2%	[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					521		86
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,430	[16]	0
Gross Additions					177		3,252
Gross Reductions					0		0
Ending balance		$ 3,607	[13]	$ 3,252	3,607	[13]	3,252
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Warrants
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					569		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,091	[9]	0
Gross Additions					569		2,091
Gross Reductions					0		0
Ending balance		2,660	[10]	2,091	2,660	[10]	2,091
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				1,110
Ending balance	[11]	$ 1,150			$ 1,150
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.28%	[11],[13]		12.28%	[11],[13]		12.41%	[14],[16],[52]
Spread		7%	[11],[13]		7%	[11],[13]		7%	[14],[16],[52]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[52]				$ 1,571
Ending balance	[11],[13]	$ 791			$ 791
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.25%	[11],[13]		12.25%	[11],[13]		12.45%	[14],[16]
Spread		7%	[11],[13]		7%	[11],[13]		7%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 20,637
Ending balance	[11],[13]	$ 20,663			$ 20,663
Investment, Identifier [Axis]: Implus Footcare, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14.24%	[11],[13]		14.24%	[11],[13]		14.25%	[14],[16]
Spread		7.75%	[11],[13]		7.75%	[11],[13]		7.75%	[14],[16]
PIK Rate		1%	[11],[13]		1%	[11],[13]		1%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 17,334
Ending balance	[11],[13]	$ 17,852			17,852
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					420		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					17,690	[14]	0
Gross Additions					420		18,300
Gross Reductions					0		0
Ending balance		18,110	[11]	18,300	18,110	[11]	18,300
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[29]				690
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Total Rate	[14],[18],[29]							10%
PIK Rate	[14],[18],[29]							10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[18],[29]				178
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Total Rate	[14],[18],[29]							20%
PIK Rate	[14],[18],[29]							20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[18],[29]				120
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[16],[53]							12.22%
Spread	[14],[16],[53]							6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[53]				1,390
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[14],[16]							12.22%
Spread	[14],[16]							6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				19,044
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					512		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,000		0
Gross Additions					368		4,000
Gross Reductions					0		0
Ending balance		$ 4,368	[19]	$ 4,000	$ 4,368	[19]	$ 4,000
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%		13%	13%		13%	13%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,147		790
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					17,403		0
Gross Additions					33		17,832
Gross Reductions					2,050		0
Ending balance		$ 15,386		$ 17,832	15,386		17,832
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[16]							11.21%
Spread	[14],[16]							5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				1,504
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[14],[16]							11.21%
Spread	[14],[16]							5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				7,752
Investment, Identifier [Axis]: Insight Borrower Corporation, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				656
Ending balance	[11]	$ 370			$ 370
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.25%	[11],[12],[13]		6.25%	[11],[12],[13]		6.25%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (70)
Ending balance	[11],[12],[13]	$ (62)			$ (62)
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Spread		6.25%	[11],[12],[13]		6.25%	[11],[12],[13]		6.25%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (57)
Ending balance	[11],[12],[13]	$ (52)			$ (52)
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.58%	[11],[13]		11.58%	[11],[13]		11.65%	[14],[16]
Spread		6.25%	[11],[13]		6.25%	[11],[13]		6.25%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 14,258
Ending balance	[11],[13]	$ 13,782			13,782
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				240
Ending balance	[11]	$ 90			$ 90
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.44%	[11],[13],[20]		13.44%	[11],[13],[20]		13.53%	[14],[16],[54]
Spread		8%	[11],[13],[20]		8%	[11],[13],[20]		8%	[14],[16],[54]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[54]				$ 776
Ending balance	[11],[13],[20]	$ 723			$ 723
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.43%	[11],[13]		13.43%	[11],[13]		13.55%	[14],[16]
Spread		8%	[11],[13]		8%	[11],[13]		8%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 7,177
Ending balance	[11],[13]	$ 6,651			$ 6,651
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.43%	[11],[13]		13.43%	[11],[13]		13.55%	[14],[16]
Spread		8%	[11],[13]		8%	[11],[13]		8%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 2,887
Ending balance	[11],[13]	$ 2,675			2,675
Investment, Identifier [Axis]: Integral Energy Services, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					390		(460)
Amount of Interest, Fees or Dividends Credited to Income					21		21
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					160	[14]	1,280
Gross Additions					390		0
Gross Reductions					0		460
Ending balance		$ 550	[11]	$ 820	$ 550	[11]	$ 820
Investment, Identifier [Axis]: Integral Energy Services, Preferred Equity
Schedule of Investments [Line Items]
Total Rate		10%	[11],[19]		10%	[11],[19]		10%	[14]
PIK Rate		10%	[11],[19]		10%	[11],[19]		10%	[14]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					125
Amount of Interest, Fees or Dividends Credited to Income					15
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				300
Gross Additions					140
Gross Reductions					0
Ending balance	[11],[19]	$ 440			$ 440
Investment, Identifier [Axis]: Integral Energy Services, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.06%	[11],[13]	13.04%	13.06%	[11],[13]	13.04%	13.16%	[14],[16]
Spread		7.50%	[11],[13]	7.50%	7.50%	[11],[13]	7.50%	7.50%	[14],[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					330		(227)
Amount of Interest, Fees or Dividends Credited to Income					955		1,036
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					13,891	[14],[16]	15,769
Gross Additions					380		33
Gross Reductions					1,570		227
Ending balance		$ 12,701	[11],[13]	$ 15,575	12,701	[11],[13]	15,575
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				0
Ending balance	[11]	$ 0			$ 0
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.44%	[11],[20],[28]		15.44%	[11],[20],[28]		15.48%	[14],[27],[55]
Spread		10%	[11],[20],[28]		10%	[11],[20],[28]		10%	[14],[27],[55]
PIK Rate	[11],[20],[28]	15.43%			15.43%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[27],[55]				$ 1,781
Ending balance	[11],[20],[28]	$ 1,767			$ 1,767
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.44%	[11],[13],[21],[28]		12.44%	[11],[13],[21],[28]		12.46%	[14],[16],[22],[27]
Spread		7%	[11],[13],[21],[28]		7%	[11],[13],[21],[28]		7%	[14],[16],[22],[27]
PIK Rate		12.44%	[11],[13],[21],[28]		12.44%	[11],[13],[21],[28]		12.46%	[14],[16],[22],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[22],[27]				$ 431
Ending balance	[11],[13],[21],[28]	$ 99			99
Investment, Identifier [Axis]: Intermedia Holdings, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7],[16]							11.47%
Spread	[7],[16]							6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				$ 19,570
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[16]							12%
Spread		6.50%	[11],[12],[13],[20]		6.50%	[11],[12],[13],[20]		6.50%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 509
Ending balance	[11],[12],[13],[20]	$ (2)			$ (2)
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.98%	[11],[13]		11.98%	[11],[13]		12%	[14],[16]
Spread		6.50%	[11],[13]		6.50%	[11],[13]		6.50%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 16,515
Ending balance	[11],[13]	$ 16,517			16,517
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,680		1,798
Gross Additions					0		958
Gross Reductions					0		0
Ending balance		2,680		$ 2,756	2,680		$ 2,756
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					711
Gross Reductions					0
Ending balance		$ 711			$ 711
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.50%		13.50%	13.50%		13.50%	13.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					311		307
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,487		4,500
Gross Additions					3		4
Gross Reductions					0		20
Ending balance		$ 4,490		$ 4,484	$ 4,490		$ 4,484
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%		13.50%	13.50%		13.50%	13.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					203		214
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,922		3,130
Gross Additions					2		3
Gross Reductions					0		14
Ending balance		$ 2,924		$ 3,119	$ 2,924		$ 3,119
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.50%		13.50%	13.50%		13.50%	13.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					610		600
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					8,944		8,944
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 8,944		$ 8,944	$ 8,944		$ 8,944
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		13.50%		13.50%	13.50%		13.50%	13.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,363		1,337
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					19,503		19,559
Gross Additions					26		17
Gross Reductions					2,000		88
Ending balance		$ 17,529		$ 19,488	$ 17,529		$ 19,488
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate		13.50%		13.50%	13.50%		13.50%	13.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					752		890
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					10,273		0
Gross Additions					45		10,857
Gross Reductions					400		38
Ending balance		$ 9,918		$ 10,819	9,918		10,819
Investment, Identifier [Axis]: Isagenix International, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				0
Ending balance	[8]	$ 0			$ 0
Investment, Identifier [Axis]: Isagenix International, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.93%	[8],[13]		11.93%	[8],[13]		11.04%	[7],[16]
Spread		6.50%	[8],[13]		6.50%	[8],[13]		5.50%	[7],[16]
PIK Rate		9.43%	[8],[13]		9.43%	[8],[13]		8.54%	[7],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				$ 2,301
Ending balance	[8],[13]	$ 2,655			$ 2,655
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (9)			$ (9)
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.10%			11.10%
Spread	[11],[13]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 1,703			$ 1,703
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.10%			12.10%
Spread	[11],[13]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 1,703			$ 1,703
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[13]	13.10%			13.10%
Spread	[11],[13]	7.50%			7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 1,703			$ 1,703
Investment, Identifier [Axis]: JDC Power Services, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (153)			$ (153)
Investment, Identifier [Axis]: JDC Power Services, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.08%			12.08%
Spread	[11],[13]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 51,491			$ 51,491
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				1,710
Ending balance	[11]	$ 1,120			$ 1,120
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.83%	[11],[13],[20]		11.83%	[11],[13],[20]		11.64%	[14],[16],[56]
Spread		6.25%	[11],[13],[20]		6.25%	[11],[13],[20]		6%	[14],[16],[56]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[56]				$ 3,137
Ending balance	[11],[13],[20]	$ 8,057			$ 8,057
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.83%	[11],[13]		11.83%	[11],[13]		11.61%	[14],[16]
Spread		6.25%	[11],[13]		6.25%	[11],[13]		6%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 36,000
Ending balance	[11],[13]	$ 33,990			$ 33,990
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.83%			11.83%
Spread	[11],[13]	6.25%			6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 3,182			$ 3,182
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				1,090
Ending balance	[11]	$ 870			$ 870
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.47%	[11],[13],[17]		12.47%	[11],[13],[17]		12.46%	[14],[16],[57]
Spread		7%	[11],[13],[17]		7%	[11],[13],[17]		7%	[14],[16],[57]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[57]				$ 835
Ending balance	[11],[13],[17]	$ 823			$ 823
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.46%	[11],[13]		15.46%	[11],[13]		12.46%	[14],[16]
Spread		10%	[11],[13]		10%	[11],[13]		7%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 1,974
Ending balance	[11],[13]	$ 425			$ 425
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.48%			12.48%
Spread	[11],[13]	7%			7%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 1,918			$ 1,918
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(90)		(1,460)
Amount of Interest, Fees or Dividends Credited to Income					769		626
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					12,420	[18]	14,970
Gross Additions					0		0
Gross Reductions					90		1,460
Ending balance		$ 12,330	[19]	$ 13,510	$ 12,330	[19]	$ 13,510
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.75%	[12],[13]	6.75%	6.75%	[12],[13]	6.75%	6.75%	[15],[27]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					3		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15],[27]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[12],[13]	$ 0	$ 0	[12],[13]	$ 0
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15%	[13]	15%	15%	[13]	15%	15.25%	[16],[27]
Spread		6.75%	[13]	6.75%	6.75%	[13]	6.75%	6.75%	[16],[27]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		(3)
Amount of Interest, Fees or Dividends Credited to Income					149		183
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,998	[16],[27]	2,450
Gross Additions					0		3
Gross Reductions					198		3
Ending balance		$ 1,800	[13]	$ 2,450	1,800	[13]	2,450
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				0
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8]	0			0
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8]	$ 200			$ 200
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		21.59%	[8],[13],[21]		21.59%	[8],[13],[21]		23.63%	[7],[16],[22]
Spread		16%	[8],[13],[21]		16%	[8],[13],[21]		18%	[7],[16],[22]
PIK Rate		21.59%	[8],[13],[21]		21.59%	[8],[13],[21]		23.63%	[7],[16],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16],[22]				$ 2,074
Ending balance	[8],[13],[21]	$ 0			$ 0
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		21.59%	[8],[13],[21]		21.59%	[8],[13],[21]		21.63%	[7],[16],[22]
Spread		16%	[8],[13],[21]		16%	[8],[13],[21]		16%	[7],[16],[22]
PIK Rate		21.59%	[8],[13],[21]		21.59%	[8],[13],[21]		21.63%	[7],[16],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16],[22]				$ 143
Ending balance	[8],[13],[21]	$ 0			$ 0
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		14.35%	[8],[13]		14.35%	[8],[13]		21.63%	[7],[16],[22]
Spread		8.75%	[8],[13]		8.75%	[8],[13]		16%	[7],[16],[22]
PIK Rate		6%	[8],[13]		6%	[8],[13]		21.63%	[7],[16],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16],[22]				$ 137
Ending balance	[8],[13]	$ 1,975			$ 1,975
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[8],[13]	14.35%			14.35%
Spread	[8],[13]	8.75%			8.75%
PIK Rate	[8],[13]	14.35%			14.35%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[13]	$ 1,200			$ 1,200
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					3,450		1,010
Amount of Interest, Fees or Dividends Credited to Income					469		91
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					9,620		5,540
Gross Additions					3,450		1,010
Gross Reductions					0		0
Ending balance		13,070	[19]	$ 6,550	13,070	[19]	$ 6,550
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread				11.50%			11.50%
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					(3)		(2)
Amount of Interest, Fees or Dividends Credited to Income					12		6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15]	0
Gross Additions					3		2
Gross Reductions					3		2
Ending balance		$ 0	[12]	$ 0	$ 0	[12]	$ 0
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15%		16.75%	15%		16.75%	15%
Spread				11.50%			11.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(29)		(11)
Amount of Interest, Fees or Dividends Credited to Income					1,829		827
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					24,207		9,999
Gross Additions					29		11
Gross Reductions					2,729		172
Ending balance		$ 21,507		$ 9,838	21,507		9,838
Investment, Identifier [Axis]: JorVet Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					490		512
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					10,741	[18]	10,741
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 10,741	[19]	$ 10,741	$ 10,741	[19]	$ 10,741
Investment, Identifier [Axis]: JorVet Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12%		12%	12%		12%	12%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,584		1,573
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					25,483		25,432
Gross Additions					30		26
Gross Reductions					647		0
Ending balance		$ 24,866		$ 25,458	24,866		25,458
Investment, Identifier [Axis]: KBK Industries, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					2,050		(3,210)
Amount of Interest, Fees or Dividends Credited to Income					1,135		6,496
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					22,770	[18]	15,570
Gross Additions					2,050		0
Gross Reductions					0		3,210
Ending balance		$ 24,820	[19]	$ 12,360	$ 24,820	[19]	$ 12,360
Investment, Identifier [Axis]: KBK Industries, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		9%		9%	9%		9%	9%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(8)		49
Amount of Interest, Fees or Dividends Credited to Income					214		320
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,700		0
Gross Additions					8		6,000
Gross Reductions					408		700
Ending balance		$ 4,300		$ 5,300	$ 4,300		5,300
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.73%	[11],[13]		12.73%	[11],[13]		14.75%	[14],[16]
Spread		7.25%	[11],[13]		7.25%	[11],[13]		9.25%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 943
Ending balance	[11],[13]	$ 968			$ 968
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.73%	[11],[13]		12.73%	[11],[13]		14.75%	[14],[16]
Spread		7.25%	[11],[13]		7.25%	[11],[13]		9.25%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 6,782
Ending balance	[11],[13]	$ 6,974			6,974
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(240)		(70)
Amount of Interest, Fees or Dividends Credited to Income					65		60
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,730	[29]	2,850
Gross Additions					0		0
Gross Reductions					240		70
Ending balance		2,490	[19],[30]	2,780	2,490	[19],[30]	2,780
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					2,240		510
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					9,690		7,220
Gross Additions					2,240		510
Gross Reductions					0		0
Ending balance		$ 11,930		$ 7,730	$ 11,930		$ 7,730
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%		12%	12%		12%	12%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,174		1,407
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					19,774		20,374
Gross Additions					8		195
Gross Reductions					2,400		0
Ending balance		$ 17,382		$ 20,569	$ 17,382		$ 20,569
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9%		9%	9%		9%	9%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					174		175
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,805		3,842
Gross Additions					164		1
Gross Reductions					21		19
Ending balance		$ 3,948		$ 3,824	3,948		3,824
Investment, Identifier [Axis]: LKCM Headwater Investments I, L.P., LP Interests
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[33],[37],[38]				2,988
Ending balance	[19],[35],[39],[40]	$ 2,841			$ 2,841
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.68%	[11],[13]		12.68%	[11],[13]		12.71%	[14],[16]
Spread		7.25%	[11],[13]		7.25%	[11],[13]		7.25%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 7,960
Ending balance	[11],[13]	$ 8,623			$ 8,623
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.68%	[11],[13]		12.68%	[11],[13]		12.71%	[14],[16]
Spread		7.25%	[11],[13]		7.25%	[11],[13]		7.25%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 5,246
Ending balance	[11],[13]	$ 5,512			$ 5,512
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.68%	[11],[13]		12.68%	[11],[13]		12.71%	[14],[16]
Spread		7.25%	[11],[13]		7.25%	[11],[13]		7.25%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 2,803
Ending balance	[11],[13]	$ 2,892			$ 2,892
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		12.68%	[11],[13]		12.68%	[11],[13]		12.71%	[14],[16]
Spread		7.25%	[11],[13]		7.25%	[11],[13]		7.25%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 1,056
Ending balance	[11],[13]	$ 1,124			$ 1,124
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 5
Schedule of Investments [Line Items]
Total Rate		12.67%	[11],[13]		12.67%	[11],[13]		12.71%	[14],[16]
Spread		7.25%	[11],[13]		7.25%	[11],[13]		7.25%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 10,694
Ending balance	[11],[13]	$ 11,382			$ 11,382
Investment, Identifier [Axis]: LLFlex, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14.98%	[11],[13]		14.98%	[11],[13]		15.54%	[14],[16]
Spread		9%	[11],[13]		9%	[11],[13]		9%	[14],[16]
PIK Rate		0.50%	[11],[13]		0.50%	[11],[13]		1%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 3,979
Ending balance	[11],[13]	$ 3,900			$ 3,900
Investment, Identifier [Axis]: Lightbox Holdings, L.P., Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.46%	[8]		10.46%	[8]		10.62%	[7]
Spread		5%	[8]		5%	[8]		5%	[7]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				$ 13,895
Ending balance	[8]	$ 15,139			$ 15,139
Investment, Identifier [Axis]: Logix Acquisition Company, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.25%	[11],[13]		13.25%	[11],[13]		13.25%	[14],[16]
Spread		4.75%	[11],[13]		4.75%	[11],[13]		4.75%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 18,778
Ending balance	[11],[13]	$ 19,266			19,266
Investment, Identifier [Axis]: Looking Glass Investments, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[33],[38]				25
Ending balance	[35],[40]	25			25
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[16]							11.46%
Spread	[7],[16]							6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				2,803
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[16]							11.46%
Spread	[7],[16]							6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				3,925
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[7],[16]							11.46%
Spread	[7],[16]							6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				3,464
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[7],[16]							11.46%
Spread	[7],[16]							6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				7,796
Investment, Identifier [Axis]: MH Corbin Holding LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					330		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		330		0	330		0
Investment, Identifier [Axis]: MH Corbin Holding LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: MH Corbin Holding LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14%		13%	14%		13%	13%	[27]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		1,150
Amount of Interest, Fees or Dividends Credited to Income					369		392
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,022	[27]	4,548
Gross Additions					0		1,150
Gross Reductions					160		195
Ending balance		$ 4,862		$ 5,503	4,862		5,503
Investment, Identifier [Axis]: MS Private Loan Fund I, LP, LP Interests
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(58)
Amount of Interest, Fees or Dividends Credited to Income					1,089
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18],[33],[37],[38]				14,527
Gross Additions					0
Gross Reductions					58
Ending balance	[19],[35],[39],[40]	$ 14,469			$ 14,469
Investment, Identifier [Axis]: MS Private Loan Fund I, LP, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[35],[40]	5%			5%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					32
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[33],[38]				0
Gross Additions					15,500
Gross Reductions					8,500
Ending balance	[35],[40]	$ 7,000			7,000
Investment, Identifier [Axis]: MS Private Loan Fund II, LP, LP Interests
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					85
Amount of Interest, Fees or Dividends Credited to Income					93
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[33],[37],[38]				1,561
Gross Additions					2,249
Gross Reductions					0
Ending balance	[19],[35],[39],[40]	$ 3,810			$ 3,810
Investment, Identifier [Axis]: MS Private Loan Fund II, LP, Secured Debt
Schedule of Investments [Line Items]
Total Rate		8.88%	[35],[40]		8.88%	[35],[40]		8.88%	[16],[33],[38]
Spread		3.50%	[35],[40]		3.50%	[35],[40]		3.50%	[16],[33],[38]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					1,446
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[16],[33],[38]				23,367
Gross Additions					32,541
Gross Reductions					6,500
Ending balance	[35],[40]	$ 49,408			49,408
Investment, Identifier [Axis]: MS Private Loan Fund, LP Interests
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(198)
Amount of Interest, Fees or Dividends Credited to Income							776
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							14,833
Gross Additions							0
Gross Reductions							198
Ending balance				14,635			14,635
Investment, Identifier [Axis]: MS Private Loan Fund, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							13
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							0
Gross Reductions							0
Ending balance				0			0
Investment, Identifier [Axis]: MS Private Loan Fund, Secured Debt 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							0
Gross Reductions							0
Ending balance				0			0
Investment, Identifier [Axis]: MSC Adviser I, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					12,497		11,040
Amount of Interest, Fees or Dividends Credited to Income					6,312		5,916
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					174,063	[18],[58]	122,930
Gross Additions					12,497		11,040
Gross Reductions					0		0
Ending balance		186,560	[19],[59]	133,970	186,560	[19],[59]	133,970
Investment, Identifier [Axis]: MSC Income Fund, Inc., Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(131)		(65)
Amount of Interest, Fees or Dividends Credited to Income					868		32
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					10,025	[18],[33],[38]	753
Gross Additions					5,000		2,000
Gross Reductions					131		65
Ending balance		$ 14,894	[19],[35],[40]	2,688	$ 14,894	[19],[35],[40]	2,688
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.75%	[11],[12],[13]		6.75%	[11],[12],[13]		6.75%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ 0
Ending balance	[11],[12],[13]	$ 0			$ 0
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.99%	[11],[13]		12.99%	[11],[13]		12.28%	[14],[16]
Spread		7.50%	[11],[13]		7.50%	[11],[13]		6.75%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 15,049
Ending balance	[11],[13]	$ 14,726			$ 14,726
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.99%			12.99%
Spread	[11],[13]	7.50%			7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 4,500			$ 4,500
Investment, Identifier [Axis]: Market Force Information, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							(16,642)
Amount of Unrealized Gain/(Loss)							16,642
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							16,642
Gross Reductions							16,642
Ending balance				$ 0			$ 0
Investment, Identifier [Axis]: Market Force Information, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread				11%			11%
Amount of Realized Gain/(Loss)							$ (6,662)
Amount of Unrealized Gain/(Loss)							163
Amount of Interest, Fees or Dividends Credited to Income							453
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							6,090
Gross Additions							804
Gross Reductions							6,894
Ending balance				$ 0			0
Investment, Identifier [Axis]: Market Force Information, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							(25,952)
Amount of Unrealized Gain/(Loss)							24,342
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							1,610
Gross Additions							24,342
Gross Reductions							25,952
Ending balance				0			0
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(137)
Amount of Interest, Fees or Dividends Credited to Income							619
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							1,537
Gross Additions							0
Gross Reductions							137
Ending balance				$ 1,400			$ 1,400
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Preferred Equity
Schedule of Investments [Line Items]
Total Rate				8%			8%
PIK Rate				8%			8%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							118
Amount of Interest, Fees or Dividends Credited to Income							148
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							6,010
Gross Additions							235
Gross Reductions							0
Ending balance				$ 6,245			6,245
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							0
Gross Reductions							0
Ending balance				$ 0			$ 0
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				12.75%			12.75%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							1,518
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							23,576
Gross Additions							23
Gross Reductions							0
Ending balance				$ 23,599			23,599
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					1,570
Amount of Interest, Fees or Dividends Credited to Income					434
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,500
Gross Additions					1,570
Gross Reductions					0
Ending balance	[19]	$ 3,070			$ 3,070
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Total Rate		8%	[19]		8%	[19]		8%	[18]
PIK Rate		8%	[19]		8%	[19]		8%	[18]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					236
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18]				6,035
Gross Additions					236
Gross Reductions					119
Ending balance	[19]	$ 6,152			6,152
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				0
Gross Additions					0
Gross Reductions					0
Ending balance	[12]	$ 0			$ 0
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.75%			10.75%			12.75%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					1,370
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					23,623
Gross Additions					31
Gross Reductions					1,146
Ending balance		$ 22,508			$ 22,508
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.25%	[11],[12],[13]		6.25%	[11],[12],[13]		6.25%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (51)
Ending balance	[11],[12],[13]	$ (45)			$ (45)
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.42%	[11],[13]		11.42%	[11],[13]		11.46%	[14],[16]
Spread		6%	[11],[13]		6%	[11],[13]		6%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 22,168
Ending balance	[11],[13]	$ 21,448			$ 21,448
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.56%	[11],[13]		12.56%	[11],[13]		12.52%	[14],[16]
Spread		7%	[11],[13]		7%	[11],[13]		7%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 17,524
Ending balance	[11],[13]	$ 22,135			22,135
Investment, Identifier [Axis]: Mini Melts of America, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				460
Ending balance	[11]	$ 460			$ 460
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13],[20]	11.58%			11.58%
Spread		6.25%	[11],[13],[20]		6.25%	[11],[13],[20]		6.25%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (42)
Ending balance	[11],[13],[20]	$ 1,356			$ 1,356
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13],[17]	11.59%			11.59%
Spread		6.25%	[11],[13],[17]		6.25%	[11],[13],[17]		6.25%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (16)
Ending balance	[11],[13],[17]	$ 1,034			$ 1,034
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.60%	[11],[13]		10.60%	[11],[13]		10.64%	[14],[16]
Spread		5.25%	[11],[13]		5.25%	[11],[13]		5.25%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 4,825
Ending balance	[11],[13]	$ 4,929			$ 4,929
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		12.60%	[11],[13]		12.60%	[11],[13]		12.64%	[14],[16]
Spread		7.25%	[11],[13]		7.25%	[11],[13]		7.25%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 4,820
Ending balance	[11],[13]	$ 4,929			4,929
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[33],[34]				678
Ending balance	[11],[35],[36]	$ 678			$ 678
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		14%	[11],[35],[36]		14%	[11],[35],[36]		14%	[14],[33],[34]
PIK Rate		4%	[11],[35],[36]		4%	[11],[35],[36]		4%	[14],[33],[34]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[33],[34]				$ 3,938
Ending balance	[11],[35],[36]	$ 3,901			$ 3,901
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14%	[11],[35],[36]		14%	[11],[35],[36]		14%	[14],[33],[34]
PIK Rate		4%	[11],[35],[36]		4%	[11],[35],[36]		4%	[14],[33],[34]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[33],[34]				$ 11,164
Ending balance	[11],[35],[36]	$ 11,060			$ 11,060
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		14%	[11],[35],[36]		14%	[11],[35],[36]		14%	[14],[33],[34]
PIK Rate		4%	[11],[35],[36]		4%	[11],[35],[36]		4%	[14],[33],[34]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[33],[34]				$ 17,213
Ending balance	[11],[35],[36]	$ 17,563			$ 17,563
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Unsecured Debt
Schedule of Investments [Line Items]
Total Rate	[11],[35],[36]	8%			8%
PIK Rate	[11],[35],[36]	8%			8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[35],[36]	$ 163			$ 163
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(290)		4,320
Amount of Interest, Fees or Dividends Credited to Income					1,924		1,977
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					26,390	[18]	22,830
Gross Additions					0		4,320
Gross Reductions					290		0
Ending balance		26,100	[19]	27,150	26,100	[19]	27,150
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					2		2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[12]	$ 0	$ 0	[12]	$ 0
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		10%	10%		10%	10%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					18		0
Amount of Interest, Fees or Dividends Credited to Income					292		289
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,746		5,746
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 5,746		$ 5,746	5,746		5,746
Investment, Identifier [Axis]: NAPCO Precast, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(1,350)		880
Amount of Interest, Fees or Dividends Credited to Income					63		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					11,730		11,830
Gross Additions					0		880
Gross Reductions					1,350		0
Ending balance		10,380		12,710	10,380		12,710
Investment, Identifier [Axis]: NBG Acquisition Inc, Secured Debt
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[22]				115
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(750)
Amount of Interest, Fees or Dividends Credited to Income							36
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					53		4,615
Gross Additions							0
Gross Reductions							750
Ending balance		50		3,865	50		3,865
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 1.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(77)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,466
Gross Additions					0
Gross Reductions					77
Ending balance		1,389			1,389
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(31)
Amount of Interest, Fees or Dividends Credited to Income							(2)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,466	[18]	175
Gross Additions							0
Gross Reductions							30
Ending balance		1,389		$ 145	1,389		$ 145
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 2.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(3)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					53
Gross Additions					0
Gross Reductions					3
Ending balance		$ 50			$ 50
Investment, Identifier [Axis]: NRP Jones, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12%		12%	12%		12%	12%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					126		126
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,080		2,080
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 2,080		$ 2,080	2,080		2,080
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					4,390		5,090
Amount of Interest, Fees or Dividends Credited to Income					474		302
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					15,020	[18]	7,700
Gross Additions					4,390		5,090
Gross Reductions					0		0
Ending balance		$ 19,410	[19]	$ 12,790	$ 19,410	[19]	$ 12,790
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[13]	12.48%			12.48%
Spread		7%	[13]	7%	7%	[13]	7%	7%	[15],[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					8		0
Amount of Interest, Fees or Dividends Credited to Income					19		5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15],[16]	0
Gross Additions					1,250		0
Gross Reductions					0		0
Ending balance		$ 1,250	[13]	$ 0	1,250	[13]	$ 0
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				12%			12%	12%
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					(121)		6
Amount of Interest, Fees or Dividends Credited to Income					1,205		1,258
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					25,794		20,094
Gross Additions					0		1,200
Gross Reductions					25,794		0
Ending balance		$ 0	[12]	$ 21,294	$ 0	[12]	$ 21,294
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.50%		12%	12.50%		12%	12%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(11)
Amount of Interest, Fees or Dividends Credited to Income							644
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 10,500		10,500
Gross Additions							11
Gross Reductions							11
Ending balance		$ 62,200		$ 10,500	62,200		10,500
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 3.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(43)
Amount of Interest, Fees or Dividends Credited to Income					454
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					10,500
Gross Additions					0
Gross Reductions					10,500
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		12.50%			12.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					140
Amount of Interest, Fees or Dividends Credited to Income					1,425
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					62,200
Gross Reductions					0
Ending balance		$ 62,200			62,200
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					198
Amount of Interest, Fees or Dividends Credited to Income					108
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		0			0
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					12,120
Gross Reductions					0
Ending balance		$ 12,120			$ 12,120
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[13]	11.88%			11.88%
Spread	[13]	6.50%			6.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					118
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					10,946
Gross Reductions					0
Ending balance	[13]	$ 10,946			$ 10,946
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%			13.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					751
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					24,556
Gross Reductions					0
Ending balance		$ 24,556			24,556
Investment, Identifier [Axis]: NexRev LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1,860		2,340
Amount of Interest, Fees or Dividends Credited to Income					471		151
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,350	[18]	1,110
Gross Additions					1,860		2,340
Gross Reductions					0		0
Ending balance		$ 8,210	[19]	3,450	$ 8,210	[19]	3,450
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10%			10%
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					42		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15]	0
Gross Additions					1,600		0
Gross Reductions					0		0
Ending balance		$ 1,600		$ 0	$ 1,600		$ 0
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		10%	10%		10%	10%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					34		1,500
Amount of Interest, Fees or Dividends Credited to Income					522		616
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					9,751		8,477
Gross Additions					60		1,545
Gross Reductions					0		1,654
Ending balance		$ 9,811		$ 8,368	$ 9,811		8,368
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7%	[11],[12],[13]		7%	[11],[12],[13]		7%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (8)
Ending balance	[11],[12],[13]	$ (7)			$ (7)
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.45%			12.45%
Spread		7%	[11],[13]		7%	[11],[13]		7%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ 0
Ending balance	[11],[13]	$ 28,605			28,605
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[14],[16]							12.54%
Spread	[14],[16]							7%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				20,467
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[14],[16]							12.52%
Spread	[14],[16]							7%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				7,222
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							340
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,150		8,040
Gross Additions							340
Gross Reductions							0
Ending balance		5,150		8,380	5,150		8,380
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					960
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					9,240
Gross Additions					960
Gross Reductions					0
Ending balance		10,200			10,200
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					9,240		5,150
Gross Additions							0
Gross Reductions							0
Ending balance		10,200		$ 5,150	10,200		$ 5,150
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,150
Gross Additions					0
Gross Reductions					0
Ending balance		$ 5,150			$ 5,150
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.98%	[13]	11.75%	11.98%	[13]	11.75%	11.98%	[16]
Spread		6.50%	[13]	6.50%	6.50%	[13]	6.50%	6.50%	[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					221		251
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,600	[16]	4,399
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 3,600	[13]	$ 4,399	$ 3,600	[13]	$ 4,399
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%		12%	12%		12%	12%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,125		1,119
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					18,426		18,414
Gross Additions					6		6
Gross Reductions					0		0
Ending balance		$ 18,432		$ 18,420	18,432		18,420
Investment, Identifier [Axis]: OMi Topco, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					11,900		6,500
Amount of Interest, Fees or Dividends Credited to Income					2,475		1,350
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					36,380	[18]	22,810
Gross Additions					11,900		6,500
Gross Reductions					0		0
Ending balance		$ 48,280	[19]	$ 29,310	$ 48,280	[19]	$ 29,310
Investment, Identifier [Axis]: OMi Topco, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12%		12%	12%		12%	12%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(16)		(25)
Amount of Interest, Fees or Dividends Credited to Income					766		952
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					12,750		15,750
Gross Additions					16		25
Gross Reductions					766		1,525
Ending balance		$ 12,000		$ 14,250	12,000		14,250
Investment, Identifier [Axis]: Obra Capital, Inc. (f/k/a Vida Capital, Inc.), Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7]							11.47%
Spread	[7]							6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				$ 14,897
Investment, Identifier [Axis]: Obra Capital, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	7.50%			7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (4)			$ (4)
Investment, Identifier [Axis]: Obra Capital, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.95%			12.95%
Spread	[11],[13]	7.50%			7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 25,575			$ 25,575
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Preferred Stock
Schedule of Investments [Line Items]
Total Rate		7%		7%	7%		7%	7%
PIK Rate		7%		7%	7%		7%	7%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%	[21]	12%	12%	[21]	12%	12%	[22]
PIK Rate		12%	[21]	12%	12%	[21]	12%	12%	[22]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(127)
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 1,493	[22]	569
Gross Additions							0
Gross Reductions							128
Ending balance		$ 987	[21]	$ 441	$ 987	[21]	$ 441
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 1.1
Schedule of Investments [Line Items]
Total Rate		12%			12%
PIK Rate		12%			12%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(110)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					326
Gross Additions					0
Gross Reductions					111
Ending balance		$ 215			$ 215
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%	[21]	12%	12%	[21]	12%	12%	[22]
PIK Rate		12%	[21]	12%	12%	[21]	12%	12%	[22]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(130)
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 716	[22]	580
Gross Additions							0
Gross Reductions							130
Ending balance		$ 473	[21]	$ 450	$ 473	[21]	$ 450
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		12%			12%
PIK Rate		12%			12%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(113)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					332
Gross Additions					0
Gross Reductions					112
Ending balance		$ 220			$ 220
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12%	[21]	12%	12%	[21]	12%	12%	[22]
PIK Rate		12%	[21]	12%	12%	[21]	12%	12%	[22]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(280)
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 332	[22]	1,249
Gross Additions							0
Gross Reductions							280
Ending balance		$ 220	[21]	$ 969	$ 220	[21]	$ 969
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 3.1
Schedule of Investments [Line Items]
Total Rate		12%			12%
PIK Rate		12%			12%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(243)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					716
Gross Additions					0
Gross Reductions					243
Ending balance		$ 473			$ 473
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		12%	[21]	12%	12%	[21]	12%	12%	[22]
PIK Rate		12%	[21]	12%	12%	[21]	12%	12%	[22]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(584)
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 326	[22]	2,606
Gross Additions							0
Gross Reductions							584
Ending balance		$ 215	[21]	$ 2,022	$ 215	[21]	$ 2,022
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 4.1
Schedule of Investments [Line Items]
Total Rate		12%			12%
PIK Rate		12%			12%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(506)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,493
Gross Additions					0
Gross Reductions					506
Ending balance		$ 987			$ 987
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Unsecured Debt
Schedule of Investments [Line Items]
Total Rate		10%	[21]	10%	10%	[21]	10%	10%	[22]
PIK Rate		10%	[21]	10%	10%	[21]	10%	10%	[22]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					305	[22]	305
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 305	[21]	$ 305	305	[21]	305
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Warrants
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[9]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[10]	0	$ 0	[10]	0
Investment, Identifier [Axis]: OnPoint, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.33%			12.33%
Spread	[11],[13]	7%			7%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 3,845			$ 3,845
Investment, Identifier [Axis]: Oneliance, LLC, Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					522		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,128		1,056
Gross Additions					522		72
Gross Reductions					0		0
Ending balance		$ 1,650		$ 1,128	$ 1,650		$ 1,128
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[13]	15.48%			15.48%
Spread	[13]	10%			10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[13]	$ 5,200			$ 5,200
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		10%		11%	10%		11%	11%	[15],[16],[27]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15],[16],[27]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.48%		16.25%	15.48%		16.25%	16.48%	[16]
Spread		10%		11%	10%		11%	11%	[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					83		(61)
Amount of Interest, Fees or Dividends Credited to Income					438		447
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,350	[16]	5,559
Gross Additions					90		6
Gross Reductions					240		141
Ending balance		$ 5,200		$ 5,424	5,200		5,424
Investment, Identifier [Axis]: Orttech Holdings, LLC, Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(1,990)		4,810
Amount of Interest, Fees or Dividends Credited to Income					264		537
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					17,050	[18],[29]	11,750
Gross Additions					0		4,810
Gross Reductions					1,990		0
Ending balance		$ 15,060	[19],[30]	$ 16,560	$ 15,060	[19],[30]	$ 16,560
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		11%	[12],[13]	11%	11%	[12],[13]	11%	11%	[15],[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15],[16]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[12],[13]	$ 0	$ 0	[12],[13]	$ 0
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		16.48%	[13]	16.25%	16.48%	[13]	16.25%	16.48%	[16]
Spread		11%	[13]	11%	11%	[13]	11%	11%	[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(23)		142
Amount of Interest, Fees or Dividends Credited to Income					1,852		1,863
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					22,040	[16]	23,429
Gross Additions					23		171
Gross Reductions					103		800
Ending balance		$ 21,960	[13]	$ 22,800	21,960	[13]	22,800
Investment, Identifier [Axis]: Ospemifene Royalty Sub LLC, Secured Debt
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[22]				57
Ending balance	[11],[21]	35			35
Investment, Identifier [Axis]: Other, Affiliate Investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0		0	0		0
Investment, Identifier [Axis]: Other, Control Investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0		0	0		0
Investment, Identifier [Axis]: PPL RVs, Inc., Common Stock 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(1,110)		(880)
Amount of Interest, Fees or Dividends Credited to Income					0		157
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					16,980		18,950
Gross Additions					0		0
Gross Reductions					1,110		880
Ending balance		15,870		18,070	15,870		18,070
Investment, Identifier [Axis]: PPL RVs, Inc., Common Stock 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					146		12
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					368	[29]	238
Gross Additions					146		12
Gross Reductions					0		0
Ending balance		$ 514	[30]	$ 250	$ 514	[30]	$ 250
Investment, Identifier [Axis]: PPL RVs, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		8.75%	[12],[13]	8.75%	8.75%	[12],[13]	8.75%	8.75%	[15],[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(1)		(1)
Amount of Interest, Fees or Dividends Credited to Income					1		1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15],[16]	0
Gross Additions					1		1
Gross Reductions					1		1
Ending balance		$ 0	[12],[13]	$ 0	$ 0	[12],[13]	$ 0
Investment, Identifier [Axis]: PPL RVs, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.23%	[13]	13.63%	14.23%	[13]	13.63%	14.23%	[16]
Spread		8.75%	[13]	8.75%	8.75%	[13]	8.75%	8.75%	[16]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(30)		(39)
Amount of Interest, Fees or Dividends Credited to Income					1,438		1,365
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					19,877	[16]	21,655
Gross Additions					30		39
Gross Reductions					886		1,404
Ending balance		$ 19,021	[13]	$ 20,290	$ 19,021	[13]	20,290
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.24%	[11],[13],[20],[35],[36]		12.24%	[11],[13],[20],[35],[36]		12.80%	[14],[16],[33],[34],[60]
Spread		6.75%	[11],[13],[20],[35],[36]		6.75%	[11],[13],[20],[35],[36]		7.25%	[14],[16],[33],[34],[60]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[33],[34],[60]				$ 2,998
Ending balance	[11],[13],[20],[35],[36]	$ 4,916			$ 4,916
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.34%	[11],[13],[35],[36]		12.34%	[11],[13],[35],[36]		12.88%	[14],[16],[33],[34]
Spread		6.75%	[11],[13],[35],[36]		6.75%	[11],[13],[35],[36]		7.25%	[14],[16],[33],[34]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[33],[34]				$ 26,263
Ending balance	[11],[13],[35],[36]	$ 21,646			21,646
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread	[14],[15],[16]							5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				0
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[14],[16],[61]							11.24%
Spread	[14],[16],[61]							5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[61]				3,186
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[14],[16]							11.25%
Spread	[14],[16]							5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				18,490
Investment, Identifier [Axis]: Peaches Holding Corporation, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		7,221			7,221
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					9,250		830
Amount of Interest, Fees or Dividends Credited to Income					5,885		5,708
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					44,090	[18]	43,260
Gross Additions					9,250		830
Gross Reductions					0		0
Ending balance		$ 53,340	[19]	$ 44,090	$ 53,340	[19]	$ 44,090
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%		12%	12%		12%	12%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		4
Amount of Interest, Fees or Dividends Credited to Income					279		142
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,500		0
Gross Additions					1,500		3,500
Gross Reductions					0		0
Ending balance		$ 5,000		$ 3,500	$ 5,000		$ 3,500
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%		12%	12%		12%	12%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					110		40
Amount of Interest, Fees or Dividends Credited to Income					1,724		534
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					20,000		0
Gross Additions					18,219		13,500
Gross Reductions					0		0
Ending balance		$ 38,219		$ 13,500	$ 38,219		$ 13,500
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12%		12%	12%		12%	12%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(13)		(35)
Amount of Interest, Fees or Dividends Credited to Income					1,692		1,722
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					27,681		28,681
Gross Additions					13		35
Gross Reductions					13		1,035
Ending balance		$ 27,681		$ 27,681	27,681		27,681
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					2,790
Amount of Interest, Fees or Dividends Credited to Income					853
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					12,540
Gross Additions					2,790
Gross Reductions					0
Ending balance	[19]	15,330			15,330
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate								8%
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					444
Gross Additions					2
Gross Reductions					460
Ending balance	[12]	$ (14)			$ (14)
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%			13%			13%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					2,044
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					30,339
Gross Additions					30
Gross Reductions					0
Ending balance		$ 30,369			30,369
Investment, Identifier [Axis]: Power System Solutions, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				1,160
Ending balance	[11]	$ 2,140			$ 2,140
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.50%	[11],[12],[13]		6.50%	[11],[12],[13]		6.75%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (82)
Ending balance	[11],[12],[13]	$ (73)			$ (73)
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.84%			11.84%
Spread		6.50%	[11],[13]		6.50%	[11],[13]		6.75%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (82)
Ending balance	[11],[13]	$ 6,155			$ 6,155
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.82%	[11],[13]		11.82%	[11],[13]		12.12%	[14],[16]
Spread		6.50%	[11],[13]		6.50%	[11],[13]		6.75%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 18,418
Ending balance	[11],[13]	$ 18,326			$ 18,326
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.83%	[11],[13]		10.83%	[11],[13]		12.28%	[14],[16]
Spread		5.50%	[11],[13]		5.50%	[11],[13]		6.85%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 7,960
Ending balance	[11],[13]	$ 7,884			$ 7,884
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.83%	[11],[13]		10.83%	[11],[13]		12.20%	[14],[16]
Spread		5.50%	[11],[13]		5.50%	[11],[13]		6.85%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 760
Ending balance	[11],[13]	$ 753			$ 753
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	10.83%			10.83%
Spread	[11],[13]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 756			$ 756
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[13]	10.58%			10.58%
Spread	[11],[13]	5.25%			5.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 851			$ 851
Investment, Identifier [Axis]: Principle Environmental, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(90)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					510		590
Gross Additions					0		0
Gross Reductions					0		90
Ending balance		510		500	510		500
Investment, Identifier [Axis]: Principle Environmental, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					50		(1,940)
Amount of Interest, Fees or Dividends Credited to Income					491		429
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					10,750	[18]	12,420
Gross Additions					50		0
Gross Reductions					0		1,940
Ending balance		$ 10,800	[19]	10,480	$ 10,800	[19]	10,480
Investment, Identifier [Axis]: Principle Environmental, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%			13%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					399
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,829
Gross Additions					12
Gross Reductions					0
Ending balance		$ 5,841			5,841
Investment, Identifier [Axis]: Principle Environmental, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15]	0
Gross Additions							0
Gross Reductions							0
Ending balance				$ 0			$ 0
Investment, Identifier [Axis]: Principle Environmental, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				13%			13%	13%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							397
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,829		5,806
Gross Additions							11
Gross Reductions							0
Ending balance				$ 5,817			5,817
Investment, Identifier [Axis]: Purge Rite, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	290			290
Investment, Identifier [Axis]: Purge Rite, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				3,281
Ending balance	[11]	$ 3,248			$ 3,248
Investment, Identifier [Axis]: Purge Rite, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		8%	[11],[12],[13]		8%	[11],[12],[13]		8%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (47)
Ending balance	[11],[12],[13]	$ (42)			$ (42)
Investment, Identifier [Axis]: Purge Rite, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.57%	[11],[13]		13.57%	[11],[13]		13.70%	[14],[16]
Spread		8%	[11],[13]		8%	[11],[13]		8%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 9,610
Ending balance	[11],[13]	$ 9,844			9,844
Investment, Identifier [Axis]: Quality Lease Service, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(98)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					460		525
Gross Additions					0		33
Gross Reductions					0		98
Ending balance		460		460	460		460
Investment, Identifier [Axis]: Quality Lease Service, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					(2,505)		0
Amount of Unrealized Gain/(Loss)					2,500		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					2,500		0
Gross Reductions					2,500		0
Ending balance		$ 0		0	$ 0		0
Investment, Identifier [Axis]: Quality Lease Service, LLC, Secured Debt
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							(29,526)
Amount of Unrealized Gain/(Loss)							29,865
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							29,865
Gross Reductions							29,865
Ending balance				0			0
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.19%	[11],[13]		12.19%	[11],[13]		12.22%	[14],[16],[53]
Spread		6.75%	[11],[13]		6.75%	[11],[13]		6.75%	[14],[16],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[53]				$ 772
Ending balance	[11],[13]	$ 1,222			$ 1,222
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.19%	[11],[13]		12.19%	[11],[13]		12.21%	[14],[16]
Spread		6.75%	[11],[13]		6.75%	[11],[13]		6.75%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 12,512
Ending balance	[11],[13]	$ 12,786			12,786
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[16]							13.21%
Spread	[14],[16]							7.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				534
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[14],[16]							13.19%
Spread	[14],[16]							7.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				13,951
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[14],[16]							13.19%
Spread	[14],[16]							7.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				559
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7],[16]							11.14%
Spread	[7],[16]							5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				$ 14,715
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.82%	[11],[13],[20]		11.82%	[11],[13],[20]		18.47%	[14],[16],[62]
Spread		6.50%	[11],[13],[20]		6.50%	[11],[13],[20]		6.50%	[14],[16],[62]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[62]				$ 3,109
Ending balance	[11],[13],[20]	$ 5,067			$ 5,067
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.82%	[11],[13]		11.82%	[11],[13]		11.88%	[14],[16]
Spread		6.50%	[11],[13]		6.50%	[11],[13]		6.50%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 39,376
Ending balance	[11],[13]	$ 39,598			39,598
Investment, Identifier [Axis]: River Aggregates, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					(409)		0
Amount of Unrealized Gain/(Loss)					80		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,710	[29]	3,620
Gross Additions					80		0
Gross Reductions					0		0
Ending balance		3,790	[30]	3,620	3,790	[30]	3,620
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(8,740)
Amount of Interest, Fees or Dividends Credited to Income					6		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		14,880
Gross Additions					0		0
Gross Reductions					0		8,740
Ending balance		$ 0		6,140	$ 0		6,140
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 1
Schedule of Investments [Line Items]
PIK Rate		10%			10%
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					8		16
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(26)	[15]	(35)
Gross Additions					2		4
Gross Reductions					0		0
Ending balance		$ (24)	[12],[21]	$ (31)	$ (24)	[12],[21]	$ (31)
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%	[21]	12.50%	12.50%	[21]	12.50%	12.50%
PIK Rate	[21]	10%			10%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(12,978)		(444)
Amount of Interest, Fees or Dividends Credited to Income					1,083		2,255
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					30,798		35,404
Gross Additions					19		40
Gross Reductions					13,429		1,119
Ending balance		$ 17,388	[21]	$ 34,325	17,388	[21]	34,325
Investment, Identifier [Axis]: Rocaceia, LLC (Quality Lease and Rental Holdings, LLC), Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 0
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.50%	[11],[12],[13]		6.50%	[11],[12],[13]		6.50%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ 0
Ending balance	[11],[12],[13]	$ 0			$ 0
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.56%	[11],[13]		12.56%	[11],[13]		12.16%	[14],[16]
Spread		7%	[11],[13]		7%	[11],[13]		6.50%	[14],[16]
PIK Rate	[11],[13]	0.50%			0.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 3,314
Ending balance	[11],[13]	$ 3,369			$ 3,369
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		14.56%	[11],[13]		14.56%	[11],[13]		14.16%	[14],[16]
Spread		9%	[11],[13]		9%	[11],[13]		8.50%	[14],[16]
PIK Rate	[11],[13]	0.50%			0.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 3,266
Ending balance	[11],[13]	$ 3,327			$ 3,327
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.52%	[11],[13]		13.52%	[11],[13]		13.54%	[14],[16]
Spread		6%	[11],[13]		6%	[11],[13]		6%	[14],[16]
PIK Rate		2%	[11],[13]		2%	[11],[13]		2%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 5,744
Ending balance	[11],[13]	$ 5,828			$ 5,828
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.52%	[11],[13]		13.52%	[11],[13]		13.54%	[14],[16]
Spread		6%	[11],[13]		6%	[11],[13]		6%	[14],[16]
PIK Rate		2%	[11],[13]		2%	[11],[13]		2%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 8,086
Ending balance	[11],[13]	$ 7,787			7,787
Investment, Identifier [Axis]: SI East, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(1,480)		1,823
Amount of Interest, Fees or Dividends Credited to Income					1,858		639
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					19,170	[18]	13,650
Gross Additions					0		2,130
Gross Reductions					1,480		0
Ending balance		$ 17,690	[19]	15,780	$ 17,690	[19]	15,780
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.75%			11.75%			11.25%
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					(2)		0
Amount of Interest, Fees or Dividends Credited to Income					121		14
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,125		0
Gross Additions					2,252		0
Gross Reductions					1,127		0
Ending balance		$ 2,250		$ 0	$ 2,250		$ 0
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.62%	[63]	12.78%	12.62%	[63]	12.78%	12.47%	[64]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							268
Amount of Interest, Fees or Dividends Credited to Income							568
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 54,536	[64]	0
Gross Additions							54,536
Gross Reductions							0
Ending balance		$ 67,661	[63]	$ 54,536	67,661	[63]	54,536
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(241)
Amount of Interest, Fees or Dividends Credited to Income					2,599
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					54,536
Gross Additions					0
Gross Reductions					54,536
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.62%			12.62%
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					58		(79)
Amount of Interest, Fees or Dividends Credited to Income					1,464		3,885
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		89,786
Gross Additions					67,661		0
Gross Reductions					0		89,786
Ending balance		$ 67,661		0	67,661		0
Investment, Identifier [Axis]: SPAU Holdings, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				500
Ending balance	[11]	$ 610			$ 610
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.98%			12.98%
Spread		7.50%	[11],[13]		7.50%	[11],[13]		8%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ 0
Ending balance	[11],[13]	$ 1,533			$ 1,533
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.98%	[11],[13]		12.98%	[11],[13]		13.72%	[14],[16]
Spread		7.50%	[11],[13]		7.50%	[11],[13]		8%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 15,728
Ending balance	[11],[13]	$ 15,648			15,648
Investment, Identifier [Axis]: Slick Innovations, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					26		320
Amount of Interest, Fees or Dividends Credited to Income					234		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,310		1,530
Gross Additions					26		320
Gross Reductions					456		0
Ending balance		$ 1,880	[19]	$ 1,850	$ 1,880	[19]	$ 1,850
Investment, Identifier [Axis]: Slick Innovations, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14%		14%	14%		14%	14%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					86		(22)
Amount of Interest, Fees or Dividends Credited to Income					1,231		980
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					11,440		13,840
Gross Additions					7,600		22
Gross Reductions					960		822
Ending balance		$ 18,080		$ 13,040	18,080		13,040
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				836
Ending balance	[11]	$ 835			$ 835
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[16]							11.46%
Spread		6%	[11],[12],[13]		6%	[11],[12],[13]		6%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 394
Ending balance	[11],[12],[13]	$ (44)			$ (44)
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.44%	[11],[13]		11.44%	[11],[13]		11.70%	[14],[16]
Spread		6%	[11],[13]		6%	[11],[13]		6%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 34,886
Ending balance	[11],[13]	$ 33,249			$ 33,249
Investment, Identifier [Axis]: Stellant Systems, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.04%	[8],[13]		11.04%	[8],[13]		11.04%	[7],[16]
Spread		5.50%	[8],[13]		5.50%	[8],[13]		5.50%	[7],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				$ 7,527
Ending balance	[8],[13]	$ 7,970			$ 7,970
Investment, Identifier [Axis]: Stellant Systems, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.19%	[8],[13]		11.19%	[8],[13]		11.28%	[7],[16]
Spread		5.75%	[8],[13]		5.75%	[8],[13]		5.75%	[7],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				$ 8,977
Ending balance	[8],[13]	$ 9,171			9,171
Investment, Identifier [Axis]: Student Resource Center, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[14]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[11]	$ 0	$ 0	[11]	$ 0
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		8.50%	[11],[21]	8.50%	8.50%	[11],[21]	8.50%	8.50%	[14],[22]
PIK Rate		8.50%	[11],[21]	8.50%	8.50%	[11],[21]	8.50%	8.50%	[14],[22]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(1,546)		0
Amount of Interest, Fees or Dividends Credited to Income					0		216
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,190	[14],[22]	4,556
Gross Additions					0		214
Gross Reductions					1,546		0
Ending balance		$ 1,644	[11],[21]	$ 4,770	1,644	[11],[21]	4,770
Investment, Identifier [Axis]: Superior Rigging & Erecting Co., Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					490		1,140
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,940		4,500
Gross Additions					490		1,140
Gross Reductions					0		0
Ending balance		6,430		$ 5,640	6,430		$ 5,640
Investment, Identifier [Axis]: Superior Rigging & Erecting Co., Secured Debt
Schedule of Investments [Line Items]
Total Rate				12%			12%	12%
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,193		1,285
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					20,427		21,378
Gross Additions					73		27
Gross Reductions					20,500		1,000
Ending balance		$ 0		$ 20,405	$ 0		20,405
Investment, Identifier [Axis]: Team Public Choices, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.58%	[8],[13]		10.58%	[8],[13]		10.88%	[7],[16]
Spread		5%	[8],[13]		5%	[8],[13]		5%	[7],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				$ 14,717
Ending balance	[8],[13]	$ 14,741			14,741
Investment, Identifier [Axis]: Tectonic Financial, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18]				5,030
Ending balance	[19]	4,720			4,720
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(1,391)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		7,681
Gross Additions					0		0
Gross Reductions					0		1,391
Ending balance		0		6,290	0		6,290
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		178
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					0		533
Gross Reductions					0		0
Ending balance		0		$ 533	0		$ 533
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 3
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%	[21],[28]	12%	12%	[21],[28]	12%	12%	[27]
PIK Rate	[21],[28]	12%			12%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					56		111
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,726	[27]	1,840
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 1,726	[21],[28]	$ 1,840	$ 1,726	[21],[28]	$ 1,840
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%	[21],[28]	12%	12%	[21],[28]	12%	12%	[27]
PIK Rate	[21],[28]	12%			12%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(9,605)		0
Amount of Interest, Fees or Dividends Credited to Income					461		923
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					14,262	[27]	15,120
Gross Additions					0		7
Gross Reductions					9,605		0
Ending balance		$ 4,657	[21],[28]	$ 15,127	4,657	[21],[28]	15,127
Investment, Identifier [Axis]: Televerde, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(2,164)		674
Amount of Interest, Fees or Dividends Credited to Income					0		592
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,734	[18]	5,408
Gross Additions					0		674
Gross Reductions					2,164		0
Ending balance		2,570		6,082	2,570		6,082
Investment, Identifier [Axis]: Televerde, LLC, Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,794		1,794
Gross Additions					0		0
Gross Reductions					1		0
Ending balance		1,793		1,794	1,793		1,794
Investment, Identifier [Axis]: Tex Tech Tennis, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[29]				2,840
Ending balance	[11],[30]	2,680			2,680
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							80
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							6,400
Gross Additions							0
Gross Reductions							0
Ending balance				6,400			6,400
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					172
Ending balance		236			236
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 1.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					53
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,400
Gross Additions					0
Gross Reductions					0
Ending balance		6,400			6,400
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18]				6,400
Ending balance	[19]	6,400			6,400
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 2.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					172
Gross Additions					64
Gross Reductions					0
Ending balance		236			236
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate								13%
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					9		12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					150		106
Gross Additions					642		1,962
Gross Reductions					800		2,080
Ending balance		$ (8)	[12]	$ (12)	$ (8)	[12]	$ (12)
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		13%	10%		13%	13%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		(129)
Amount of Interest, Fees or Dividends Credited to Income					440		607
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,347		9,442
Gross Additions					14		15
Gross Reductions					1,200		729
Ending balance		$ 6,161		$ 8,728	6,161		8,728
Investment, Identifier [Axis]: Titan Meter Midco Corp., Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	$ 1,219			$ 1,219
Investment, Identifier [Axis]: Titan Meter Midco Corp., Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (118)			$ (118)
Investment, Identifier [Axis]: Titan Meter Midco Corp., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.83%			11.83%
Spread	[11],[13]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 33,417			$ 33,417
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(2,970)		3,970
Amount of Interest, Fees or Dividends Credited to Income					58		58
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					12,740	[18]	7,800
Gross Additions					0		3,970
Gross Reductions					2,970		0
Ending balance		9,770	[19]	11,770	9,770	[19]	11,770
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(2)
Amount of Interest, Fees or Dividends Credited to Income					2		4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15]	0
Gross Additions					0		2
Gross Reductions					0		2
Ending balance		$ 0	[12]	$ 0	$ 0	[12]	$ 0
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%		12%	13.50%		12%	12%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					71		(9)
Amount of Interest, Fees or Dividends Credited to Income					529		487
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,920		7,920
Gross Additions					0		9
Gross Reductions					0		9
Ending balance		$ 7,920		$ 7,920	$ 7,920		7,920
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.50%	[8],[13],[21]		12.50%	[8],[13],[21]		12.53%	[7],[16],[22]
Spread		7.15%	[8],[13],[21]		7.15%	[8],[13],[21]		7.15%	[7],[16],[22]
PIK Rate		6%	[8],[13],[21]		6%	[8],[13],[21]		6%	[7],[16],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16],[22]				$ 3,333
Ending balance	[8],[13],[21]	$ 4,025			4,025
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[22]				0
Ending balance	[8],[21]	0			0
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[16]							11.46%
Spread	[14],[16]							6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				23,101
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[14],[16]							11.96%
Spread	[14],[16]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				9,017
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[14],[16]							11.96%
Spread	[14],[16]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				4,689
Investment, Identifier [Axis]: UniTek Global Services, Inc., Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[7]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[8]	$ 0	$ 0	[8]	$ 0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 1
Schedule of Investments [Line Items]
Total Rate		20%	[8],[19]	20%	20%	[8],[19]	20%	20%	[7],[18]
PIK Rate		20%	[8],[19]	20%	20%	[8],[19]	20%	20%	[7],[18]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(224)		(221)
Amount of Interest, Fees or Dividends Credited to Income					270		221
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,833	[7],[18]	2,833
Gross Additions					271		221
Gross Reductions					224		221
Ending balance		$ 2,880	[8],[19]	$ 2,833	$ 2,880	[8],[19]	$ 2,833
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 2
Schedule of Investments [Line Items]
Total Rate		20%	[8]	20%	20%	[8]	20%	20%	[7]
PIK Rate		20%	[8]	20%	20%	[8]	20%	20%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					140		1,668
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,698	[7]	1,991
Gross Additions					140		1,668
Gross Reductions					0		0
Ending balance		$ 3,838	[8]	$ 3,659	$ 3,838	[8]	$ 3,659
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 3
Schedule of Investments [Line Items]
Total Rate		19%	[8]	19%	19%	[8]	19%	19%	[7]
PIK Rate		19%	[8]	19%	19%	[8]	19%	19%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[7]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[8]	$ 0	$ 0	[8]	$ 0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 4
Schedule of Investments [Line Items]
Total Rate		13.50%	[8]	13.50%	13.50%	[8]	13.50%	13.50%	[7]
PIK Rate		13.50%	[8]	13.50%	13.50%	[8]	13.50%	13.50%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[7]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[8]	$ 0	$ 0	[8]	$ 0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Convertible Debt
Schedule of Investments [Line Items]
Total Rate				15%			15%
PIK Rate				15%			15%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							1,380
Amount of Interest, Fees or Dividends Credited to Income							187
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							4,592
Gross Additions							1,567
Gross Reductions							0
Ending balance				$ 6,159			$ 6,159
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Convertible Debt 1
Schedule of Investments [Line Items]
Total Rate		15%	[8]		15%	[8]		15%	[7]
PIK Rate		15%	[8]		15%	[8]		15%	[7]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					132
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				3,889
Gross Additions					132
Gross Reductions					0
Ending balance	[8]	$ 4,021			$ 4,021
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Convertible Debt 2
Schedule of Investments [Line Items]
Total Rate		15%	[8]		15%	[8]		15%	[7]
PIK Rate		15%	[8]		15%	[8]		15%	[7]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					65
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				1,908
Gross Additions					64
Gross Reductions					0
Ending balance	[8]	$ 1,972			1,972
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread				7.50%			7.50%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							22
Amount of Interest, Fees or Dividends Credited to Income							(2)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							382
Gross Additions							25
Gross Reductions							407
Ending balance				$ 0			$ 0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread				7.50%			7.50%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							96
Amount of Interest, Fees or Dividends Credited to Income							282
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							1,712
Gross Additions							112
Gross Reductions							1,824
Ending balance				$ 0			0
Investment, Identifier [Axis]: UnionRock Energy Fund II, LP, LP Interests
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					197		(964)
Amount of Interest, Fees or Dividends Credited to Income					0		25
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,694	[33],[37],[38]	5,855
Gross Additions					198		531
Gross Reductions					168		1,162
Ending balance		5,724	[35],[39],[40]	5,224	5,724	[35],[39],[40]	5,224
Investment, Identifier [Axis]: UnionRock Energy Fund III, LP, LP Interests
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					994		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,838	[33],[37],[38]	0
Gross Additions					3,494		150
Gross Reductions					0		0
Ending balance		6,332	[35],[39],[40]	150	6,332	[35],[39],[40]	150
Investment, Identifier [Axis]: Universal Wellhead Services Holdings, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[14],[29]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[11],[30]	$ 0	$ 0	[11],[30]	$ 0
Investment, Identifier [Axis]: Universal Wellhead Services Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		14%	[11],[30]	14%	14%	[11],[30]	14%	14%	[14],[29]
PIK Rate		14%	[11],[30]	14%	14%	[11],[30]	14%	14%	[14],[29]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(150)		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					150	[14],[29]	220
Gross Additions					0		0
Gross Reductions					150		0
Ending balance		$ 0	[11],[30]	$ 220	$ 0	[11],[30]	220
Investment, Identifier [Axis]: Urgent DSO LLC, Preferred Equity
Schedule of Investments [Line Items]
Total Rate	[19]	9%			9%
PIK Rate	[19]	9%			9%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					136
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					4,136
Gross Reductions					0
Ending balance	[19]	$ 4,136			$ 4,136
Investment, Identifier [Axis]: Urgent DSO LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.50%			13.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					631
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					8,718
Gross Reductions					0
Ending balance		$ 8,718			$ 8,718
Investment, Identifier [Axis]: UserZoom Technologies, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.81%	[11],[13]		12.81%	[11],[13]		12.99%	[14],[16]
Spread		7.50%	[11],[13]		7.50%	[11],[13]		7.50%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 4,000
Ending balance	[11],[13]	$ 4,000			4,000
Investment, Identifier [Axis]: VORTEQ Coil Finishers, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[18]				2,570
Ending balance	[11],[19]	2,570			2,570
Investment, Identifier [Axis]: VVS Holdco LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(100)
Amount of Interest, Fees or Dividends Credited to Income					204		215
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					12,240	[18],[29]	11,940
Gross Additions					0		0
Gross Reductions					0		100
Ending balance		$ 12,240	[19],[30]	$ 11,840	$ 12,240	[19],[30]	$ 11,840
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6%	[12],[13]	6%	6%	[12],[13]	6%	6%	[15],[16],[27]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					8		15
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15],[16],[27]	(21)
Gross Additions					0		11
Gross Reductions					0		0
Ending balance		$ 0	[12],[13]	$ (10)	$ 0	[12],[13]	$ (10)
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.50%		11.50%	11.50%		11.50%	11.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,648		1,768
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					28,035		30,161
Gross Additions					34		39
Gross Reductions					1,160		1,242
Ending balance		$ 26,909		$ 28,958	$ 26,909		28,958
Investment, Identifier [Axis]: Veregy Consolidated, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		5.25%	[8],[12],[13]		5.25%	[8],[12],[13]		5.25%	[7],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15],[16]				$ (408)
Ending balance	[8],[12],[13]	$ (296)			$ (296)
Investment, Identifier [Axis]: Veregy Consolidated, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.59%	[8],[13]		11.59%	[8],[13]		11.64%	[7],[16]
Spread		6%	[8],[13]		6%	[8],[13]		6%	[7],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				$ 15,775
Ending balance	[8],[13]	$ 17,794			17,794
Investment, Identifier [Axis]: Vision Interests, Inc., Series A Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		168
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,000	[18]	3,000
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		3,000		3,000	3,000		3,000
Investment, Identifier [Axis]: Vistar Media, Inc., Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				2,180
Ending balance	[11]	$ 2,320			2,320
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[14],[16]							12.63%
Spread	[14],[16]							7%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 41,455
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13],[65]	12.59%			12.59%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13],[65]	$ 5,372			$ 5,372
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.46%			12.46%
Spread	[11],[13]	7%			7%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 42,000			$ 42,000
Investment, Identifier [Axis]: Volusion, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(2,576)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					0		2,576
Gross Reductions					0		2,576
Ending balance		0		0	0		0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,250		0
Gross Additions							0
Gross Reductions							0
Ending balance		7,000		0	7,000		0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		0			0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(706)
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions							11,446
Gross Reductions							706
Ending balance		0		10,740	0		10,740
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					1,867
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,250
Gross Additions					1,868
Gross Reductions					2,118
Ending balance		7,000			7,000
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 3
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10%			10%			10%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					106
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,100
Gross Additions					0
Gross Reductions					0
Ending balance		$ 2,100			2,100
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				10%			10%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							54
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							2,100
Gross Reductions							0
Ending balance				$ 2,100			2,100
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							(3,188)
Amount of Unrealized Gain/(Loss)							1,821
Amount of Interest, Fees or Dividends Credited to Income							166
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							14,914
Gross Additions							0
Gross Reductions							14,914
Ending balance				0			0
Investment, Identifier [Axis]: Volusion, LLC, Unsecured Convertible Debt
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							(409)
Amount of Unrealized Gain/(Loss)							409
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							409
Gross Reductions							409
Ending balance				0			0
Investment, Identifier [Axis]: Volusion, LLC, Warrants
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							2,576
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							0
Gross Reductions							0
Ending balance				0			0
Investment, Identifier [Axis]: Wall Street Prep, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				731
Ending balance	[11]	$ 880			$ 880
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		7%	[11],[12],[13]		7%	[11],[12],[13]		7%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ (4)
Ending balance	[11],[12],[13]	$ (3)			$ (3)
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.45%	[11],[13]		12.45%	[11],[13]		12.54%	[14],[16]
Spread		7%	[11],[13]		7%	[11],[13]		7%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 3,723
Ending balance	[11],[13]	$ 3,414			$ 3,414
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.73%	[11],[13]		11.73%	[11],[13]		11.50%	[14],[16],[56]
Spread		6.25%	[11],[13]		6.25%	[11],[13]		6%	[14],[16],[56]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[56]				$ 1,853
Ending balance	[11],[13]	$ 2,223			$ 2,223
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.73%	[11],[13]		11.73%	[11],[13]		11.50%	[14],[16]
Spread		6.25%	[11],[13]		6.25%	[11],[13]		6%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 386
Ending balance	[11],[13]	$ 384			$ 384
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.73%	[11],[13]		11.73%	[11],[13]		11.50%	[14],[16]
Spread		6.25%	[11],[13]		6.25%	[11],[13]		6%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 15,886
Ending balance	[11],[13]	$ 15,805			$ 15,805
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		11.73%	[11],[13]		11.73%	[11],[13]		11.50%	[14],[16]
Spread		6.25%	[11],[13]		6.25%	[11],[13]		6%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 12,707
Ending balance	[11],[13]	$ 12,642			12,642
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				2,990
Ending balance	[11],[19]	$ 4,580			$ 4,580
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.33%	[11],[13],[17]		10.33%	[11],[13],[17]		11.34%	[14],[16],[66]
Spread		5%	[11],[13],[17]		5%	[11],[13],[17]		6%	[14],[16],[66]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[66]				$ 2,405
Ending balance	[11],[13],[17]	$ 2,393			$ 2,393
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.33%	[11],[13]		10.33%	[11],[13]		11.35%	[14],[16]
Spread		5%	[11],[13]		5%	[11],[13]		6%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 10,658
Ending balance	[11],[13]	$ 10,604			$ 10,604
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.33%	[11],[13]		10.33%	[11],[13]		11.35%	[14],[16]
Spread		5%	[11],[13]		5%	[11],[13]		6%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 5,303
Ending balance	[11],[13]	$ 5,277			$ 5,277
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.56%	[11],[13]		13.56%	[11],[13]		12.64%	[14],[16],[67]
Spread		8%	[11],[13]		8%	[11],[13]		7%	[14],[16],[67]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[67]				$ 2,222
Ending balance	[11],[13]	$ 655			$ 655
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.56%	[11],[13]		13.56%	[11],[13]		12.66%	[14],[16]
Spread		8%	[11],[13]		8%	[11],[13]		7%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 2,067
Ending balance	[11],[13]	$ 1,841			$ 1,841
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.56%	[11],[13]		12.56%	[11],[13]		12.66%	[14],[16]
Spread		7%	[11],[13]		7%	[11],[13]		7%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 9,300
Ending balance	[11],[13]	$ 7,112			$ 7,112
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[13]	14.56%			14.56%
Spread	[11],[13]	9%			9%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 7,112			$ 7,112
Investment, Identifier [Axis]: World Micro Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		139
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,845	[18]	3,845
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 3,845	[19]	$ 3,845	$ 3,845	[19]	$ 3,845
Investment, Identifier [Axis]: World Micro Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%		13%	13%		13%	13%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					778		948
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					12,028		14,140
Gross Additions					12		14
Gross Reductions					0		0
Ending balance		$ 12,040		$ 14,154	$ 12,040		14,154
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.44%			11.44%
Spread		6%	[11],[13]		6%	[11],[13]		5.25%	[14],[15],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16]				$ 0
Ending balance	[11],[13]	$ 23,935			$ 23,935
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.43%	[11],[13]		11.43%	[11],[13]		11.22%	[14],[16]
Spread		6%	[11],[13]		6%	[11],[13]		5.75%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 24,057
Ending balance	[11],[13]	$ 37,635			37,635
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[14],[16]							11.25%
Spread	[14],[16]							5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]				$ 37,828
Investment, Identifier [Axis]: YS Garments, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.92%	[8],[13]		12.92%	[8],[13]		13%	[7],[16]
Spread		7.50%	[8],[13]		7.50%	[8],[13]		7.50%	[7],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				$ 10,220
Ending balance	[8],[13]	$ 10,290			$ 10,290
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	6%			6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (206)			$ (206)
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	6%			6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (181)			$ (181)
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.26%			11.26%
Spread	[11],[13]	6%			6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 6,496			$ 6,496
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.33%			11.33%
Spread	[11],[13]	6%			6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 46,564			$ 46,564
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(170)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		240
Gross Additions					0		0
Gross Reductions					0		170
Ending balance		$ 0		$ 70	$ 0		$ 70
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%		12%	12%		12%	12%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					27		27
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					450		450
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 450		$ 450	$ 450		$ 450
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		6.50%		6.50%	6.50%		6.50%	6.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					33		33
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					945		945
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 945		$ 945	$ 945		$ 945
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		14%		14%	14%		14%	14%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(369)		(215)
Amount of Interest, Fees or Dividends Credited to Income					195		194
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,080		2,676
Gross Additions					0		0
Gross Reductions					370		215
Ending balance		$ 1,710		$ 2,461	1,710		2,461
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Warrants
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[9]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[10]	$ 0	$ 0	[10]	$ 0
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.69%	[11],[13]		12.69%	[11],[13]		12.71%	[14],[16],[68]
Spread		7.25%	[11],[13]		7.25%	[11],[13]		7.25%	[14],[16],[68]
PIK Rate	[11],[13]	1.50%			1.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[68]				$ 16,380
Ending balance	[11],[13]	$ 16,633			$ 16,633
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.69%	[11],[13]		12.69%	[11],[13]		12.71%	[14],[16],[68]
Spread		7.25%	[11],[13]		7.25%	[11],[13]		7.25%	[14],[16],[68]
PIK Rate	[11],[13]	1.50%			1.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[68]				$ 4,067
Ending balance	[11],[13]	$ 4,164			$ 4,164
[1] Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. Control investments are defined by the 1940 Act as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained. Control investments are defined by the 1940 Act as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained. Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments. Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments. Middle Market portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Middle Market portfolio investments. Middle Market portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Middle Market portfolio investments. Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit. (27) Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit. Private Loan portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Private Loan portfolio investments. The position is unfunded and no interest income is being earned as of June 30, 2024. The position may earn a nominal unused facility fee on committed amounts. Index based floating interest rate is subject to contractual minimum interest rate. As noted in this schedule, 93% of the loans (based on the par amount) contain Term SOFR (“SOFR”) floors which range between 0.50% and 5.25%, with a weighted-average floor of 1.24%. Private Loan portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Private Loan portfolio investments. The position is unfunded and no interest income is being earned as of December 31, 2023. The position may earn a nominal unused facility fee on committed amounts. Index based floating interest rate is subject to contractual minimum interest rate. As noted in this schedule, 96% of these floating rate loans (based on the par amount) contain LIBOR or SOFR floors which range between 0.50% and 2.00%, with a weighted-average floor of 1.20%. Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of June 30, 2024. Income producing through dividends or distributions. Income producing through dividends or distributions. RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of June 30, 2024. Non-accrual and non-income producing debt investment. Non-accrual and non-income producing debt investment. Warrants are presented in equivalent shares/units with a strike price of $1.00 per share/unit. (35) Warrants are presented in equivalent shares/units with a strike price of $1.00 per share/unit. (33) Index based floating interest rate is subject to contractual maximum base rate of 3.00%. Index based floating interest rate is subject to contractual maximum base rate of 3.00%. Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable. Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable. Shares/Units represent ownership in a related Real Estate or HoldCo entity. (29) Shares/Units represent ownership in a related Real Estate or HoldCo entity. The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of SOFR plus 8.00% (Floor 1.50%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of SOFR+8.00% (Floor 1.50%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. Portfolio company headquarters are located outside of the United States. Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. Portfolio company headquarters are located outside of the United States. Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated. Other Portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Other Portfolio investments. (30) Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated. Other Portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Other Portfolio investments. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.00% (Floor 2.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+8.00% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. Effective yield as of December 31, 2023 was approximately 4.98% on the Dreyfus Government Cash Management. (36) Effective yield as of June 30, 2024 was approximately 4.94% on the Dreyfus Government Cash Management. (37) Effective yield as of June 30, 2024 was approximately 4.97% on the Fidelity Government Fund. Effective yield as of December 31, 2023 was approximately 5.01% on the Fidelity Government Fund. Effective yield as of December 31, 2023 was approximately 4.99% on the Fidelity Treasury. (31) Effective yield as of June 30, 2024 was approximately 4.95% on the Fidelity Treasury. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.50% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+5.75% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. Index based floating interest rate is subject to contractual maximum base rate of 1.50%. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.75% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+8.00% (Floor 2.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+10.00%. RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.00% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.00% (Floor 1.00%). Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. External Investment Manager. Investment is not encumbered as security for the Company’s Credit Facilities or in support of the SBA-guaranteed debentures issued by the Funds. External Investment Manager. Investment is not encumbered as security for the Company's Credit Facilities or in support of the SBA-guaranteed debentures issued by the Funds. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+5.75% (1.00%). Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.50% (Floor 2.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of 11.75% per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of 11.25% per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.00% (0.75%). Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.00% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.25% (Floor 1.00%). Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2023.

Consolidated Schedule of Inve_6

Consolidated Schedule of Investments In and Advances to Affiliates - Footnotes (Details) - USD ($) $ in Thousands	Jun. 30, 2024		Dec. 31, 2023	[2]	Jun. 30, 2023	Dec. 31, 2022
Schedule of Investments [Line Items]
Fair value	$ 4,737,511	[1]	$ 4,286,271
Control investments
Schedule of Investments [Line Items]
Fair value	2,075,429	[1],[3]	2,006,698	[4]	$ 1,883,699	$ 1,703,172
Control investments | Midwest
Schedule of Investments [Line Items]
Fair value	$ 514,812				$ 453,692
Net assets, percentage (as a percent)	20%				20.10%
Control investments | Northeast Region and Canada
Schedule of Investments [Line Items]
Fair value	$ 294,943
Net assets, percentage (as a percent)	11.40%
Control investments | Northeast
Schedule of Investments [Line Items]
Fair value					$ 283,469
Net assets, percentage (as a percent)					12.60%
Control investments | Southeast
Schedule of Investments [Line Items]
Fair value	$ 49,880				$ 51,394
Net assets, percentage (as a percent)	1.90%				2.30%
Control investments | Southwest
Schedule of Investments [Line Items]
Fair value	$ 826,500				$ 655,449
Net assets, percentage (as a percent)	32%				29.10%
Control investments | West
Schedule of Investments [Line Items]
Fair value	$ 389,294				$ 439,695
Net assets, percentage (as a percent)	15.10%				19.50%
Affiliate investments
Schedule of Investments [Line Items]
Fair value	$ 752,764	[1],[5]	$ 615,002	[6]	$ 563,125	$ 618,359
Affiliate investments | Midwest
Schedule of Investments [Line Items]
Fair value	$ 199,928				$ 78,205
Net assets, percentage (as a percent)	7.80%				3.50%
Affiliate investments | Northeast Region and Canada
Schedule of Investments [Line Items]
Fair value	$ 80,600
Net assets, percentage (as a percent)	3.10%
Affiliate investments | Northeast
Schedule of Investments [Line Items]
Fair value					$ 102,097
Net assets, percentage (as a percent)					4.50%
Affiliate investments | Southeast
Schedule of Investments [Line Items]
Fair value	$ 171,957				$ 172,637
Net assets, percentage (as a percent)	6.70%				7.70%
Affiliate investments | Southwest
Schedule of Investments [Line Items]
Fair value	$ 153,574				$ 79,676
Net assets, percentage (as a percent)	6%				3.50%
Affiliate investments | West
Schedule of Investments [Line Items]
Fair value	$ 146,705				$ 130,510
Net assets, percentage (as a percent)	5.70%				5.80%
[1] Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. Control investments are defined by the 1940 Act as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained. Control investments are defined by the 1940 Act as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained. Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments. Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments.