MSC Income Fund (MSIF) 10-K 8 Mar 24 2023 FY Annual report Financial data

Cover

Cover - USD ($)	12 Months Ended
	Dec. 31, 2023	Mar. 01, 2024	Jun. 30, 2023
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	814-00939
Entity Registrant Name	MSC Income Fund, Inc.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	45-3999996
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(g) Security	Common Stock, par value $0.001 per share
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction	false
Entity Shell Company	false
Entity Public Float			$ 0
Entity Common Stock, Shares Outstanding		80,469,732
Documents Incorporated by Reference	None.
Document Fiscal Year Focus	2023
Entity Central Index Key	0001535778
Amendment Flag	false
Document Fiscal Period Focus	FY

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2023
Auditor Information [Abstract]
Auditor Firm ID	248
Auditor Name	GRANT THORNTON LLP
Auditor Location	Houston, Texas

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023		Dec. 31, 2022
ASSETS
Investments at fair value:	$ 1,092,895	[1]	$ 1,068,143	[2]
Cash and cash equivalents	30,786		21,312
Interest and dividend receivable	10,541		11,917
Receivable for securities sold	171		464
Deferred financing costs (net of accumulated amortization of $4,168 and $2,413 as of December 31, 2023 and December 31, 2022, respectively)	3,416		2,908
Prepaids and other assets	2,091		2,420
Total assets	1,139,900		1,107,164
LIABILITIES
Debt	484,843		470,544
Accounts payable and other liabilities	255		1,292
Payable for securities purchased	206		0
Interest payable	6,266		5,443
Dividend payable	14,019		12,816
Management and incentive fees payable	8,745		7,042
Deferred tax liability, net	3,259		362
Total liabilities	517,593		497,499
Commitments and contingencies (Note J)
NET ASSETS
Common stock, $0.001 par value per share (450,000,000 shares authorized; 80,108,865 and 80,105,999 shares issued and outstanding as of December 31, 2023 and December 31, 2022, respectively)	80		80
Additional paid‑in capital	686,136		684,165
Total overdistributed earnings	(63,909)		(74,580)
Total net assets	622,307		609,665
Total liabilities and net assets	$ 1,139,900		$ 1,107,164
NET ASSET VALUE PER SHARE (in dollars per share)	$ 7.77		$ 7.61
Line of Credit | Revolving Credit Facility
LIABILITIES
Debt	$ 335,688		$ 321,688
Unsecured Debt | Series A Notes due 2026
LIABILITIES
Debt	149,155		148,856
Control investments
ASSETS
Investments at fair value:	53,644	[1],[3]	50,303	[2],[4]
Affiliate investments
ASSETS
Investments at fair value:	291,279	[1],[5]	277,000	[2],[6]
Non‑Control/Non‑Affiliate investments
ASSETS
Investments at fair value:	$ 747,972	[1],[7]	$ 740,840	[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 ($)	Dec. 31, 2023		Dec. 31, 2022
Investment, cost	$ 1,038,318,000	[1]	$ 1,059,886,000	[2]
Deferred financing costs, accumulated amortization	$ 4,168,000		$ 2,413,000
Common stock, par value (in dollars per share)	$ 0.001		$ 0.001
Common stock, shares authorized (in shares)	450,000,000		450,000,000
Common stock, shares issued (in shares)	80,108,865		80,105,999
Common stock, shares outstanding (in shares)	80,108,865		80,105,999
Unsecured Debt | Series A Notes due 2026
Debt instrument, par value	$ 150,000,000		$ 150,000,000
Control investments
Investment, cost	43,159,000	[1],[3]	31,120,000	[2],[4]
Affiliate investments
Investment, cost	231,378,000	[1],[5]	241,565,000	[2],[6]
Non‑Control/Non‑Affiliate investments
Investment, cost	$ 763,781,000	[1],[7]	$ 787,201,000	[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. 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	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
INVESTMENT INCOME:
Interest, fee and dividend income	$ 131,386	$ 103,765	$ 90,128
EXPENSES:
Interest	(36,458)	(24,423)	(14,469)
Base management fees	(19,828)	(19,831)	(17,316)
Incentive fees	(12,569)	(2,130)	(557)
Internal administrative services expenses	(8,916)	(5,147)	(4,317)
General and administrative	(4,254)	(3,905)	(4,427)
Total expenses before expense waivers	(82,025)	(55,436)	(41,086)
Waiver of internal administrative services expenses	8,308	4,540	4,317
Total expenses, net of expense waivers	(73,717)	(50,896)	(36,769)
NET INVESTMENT INCOME	57,669	52,869	53,359
NET REALIZED GAIN (LOSS):
Total net realized gain (loss)	(34,010)	(3,936)	(498)
Realized loss on extinguishment of debt	0	0	(2,430)
Total net realized loss	(34,010)	(3,936)	(2,928)
NET UNREALIZED APPRECIATION (DEPRECIATION):
Total net unrealized appreciation (depreciation)	46,319	(1,702)	25,095
INCOME TAXES:
Federal and state income, excise and other taxes	(872)	(1,281)	(1,890)
Deferred taxes	(2,897)	(362)	0
Income tax provision	(3,769)	(1,643)	(1,890)
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS	$ 66,209	$ 45,588	$ 73,636
NET INVESTMENT INCOME PER SHARE— BASIC (in dollars per share)	$ 0.72	$ 0.66	$ 0.67
NET INVESTMENT INCOME PER SHARE— DILUTED (in dollars per share)	0.72	0.66	0.67
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS PER SHARE—BASIC (in dollars per share)	0.82	0.57	0.92
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS PER SHARE—DILUTED (in dollars per share)	$ 0.82	$ 0.57	$ 0.92
WEIGHTED AVERAGE SHARES OUTSTANDING-BASIC (in shares)	80,269,002	79,993,040	79,873,537
WEIGHTED AVERAGE SHARES OUTSTANDING-DITUTED (in shares)	80,269,002	79,993,040	79,873,537
Control investments
INVESTMENT INCOME:
Interest, fee and dividend income	$ 3,101	$ 3,223	$ 2,810
NET REALIZED GAIN (LOSS):
Total net realized gain (loss)	2,223	0	0
NET UNREALIZED APPRECIATION (DEPRECIATION):
Total net unrealized appreciation (depreciation)	(1,289)	1,503	2,001
Affiliate investments
INVESTMENT INCOME:
Interest, fee and dividend income	29,805	24,057	18,244
NET REALIZED GAIN (LOSS):
Total net realized gain (loss)	(7,188)	(7,327)	(2,673)
NET UNREALIZED APPRECIATION (DEPRECIATION):
Total net unrealized appreciation (depreciation)	25,116	15,689	10,237
Non‑Control/Non‑Affiliate investments
INVESTMENT INCOME:
Interest, fee and dividend income	98,480	76,485	69,074
NET REALIZED GAIN (LOSS):
Total net realized gain (loss)	(29,045)	3,391	2,175
NET UNREALIZED APPRECIATION (DEPRECIATION):
Total net unrealized appreciation (depreciation)	$ 22,492	$ (18,894)	$ 12,857

Consolidated Statements of Chan

Consolidated Statements of Changes in Net Assets - USD ($) $ in Thousands	3 Months Ended					12 Months Ended			33 Months Ended
	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2023
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period (in shares)		80,105,999				80,105,999
Balance at beginning of period		$ 609,665		$ 613,170		$ 609,665	$ 613,170	$ 579,624
Issuance of common stock						$ 8,500	$ 750	$ 674
Dividend reinvestment (in shares)						2,345,246	2,259,611	1,461,776
Dividend reinvestment						$ 18,417	$ 17,750	$ 11,160
Common stock repurchased (in shares)	(958,928)	(519,489)	(522,310)	(489,031)	(511,314)				(6,830,597)
Common stock repurchased						(24,427)	(15,986)	(10,065)
Net increase resulting from operations						66,209	45,588	73,636
Dividends to stockholders						(56,057)	(51,607)	(41,859)
Reclassification for certain permanent book-to-tax differences						$ 0	$ 0	0
Balance at ending of period (in shares)	80,108,865		80,105,999			80,108,865	80,105,999		80,108,865
Balance at ending of period	$ 622,307		$ 609,665		$ 613,170	$ 622,307	$ 609,665	$ 613,170	$ 622,307
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period (in shares)		80,105,999		79,826,605		80,105,999	79,826,605	79,608,304
Balance at beginning of period		$ 80		$ 80		$ 80	$ 80	$ 80
Issuance of common stock (in shares)						1,080,185	94,697	89,705
Issuance of common stock						$ 1
Dividend reinvestment (in shares)						2,345,246	2,259,611	1,461,714
Dividend reinvestment						$ 2	$ 2	$ 1
Common stock repurchased (in shares)						(3,422,565)	(2,074,914)	(1,333,118)
Common stock repurchased						$ (3)	$ (2)	$ (1)
Balance at ending of period (in shares)	80,108,865		80,105,999		79,826,605	80,108,865	80,105,999	79,826,605	80,108,865
Balance at ending of period	$ 80		$ 80		$ 80	$ 80	$ 80	$ 80	$ 80
Additional Paid-In Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		684,165		682,426		684,165	682,426	682,028
Issuance of common stock						8,499	750	674
Dividend reinvestment						18,415	17,748	11,159
Common stock repurchased						(24,424)	(15,984)	(10,064)
Reclassification for certain permanent book-to-tax differences						(519)	(775)	(1,371)
Balance at ending of period	686,136		684,165		682,426	686,136	684,165	682,426	686,136
Total Overdistributed Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period		$ (74,580)		$ (69,336)		(74,580)	(69,336)	(102,484)
Net increase resulting from operations						66,209	45,588	73,636
Dividends to stockholders						(56,057)	(51,607)	(41,859)
Reclassification for certain permanent book-to-tax differences						519	775	1,371
Balance at ending of period	$ (63,909)		$ (74,580)		$ (69,336)	$ (63,909)	$ (74,580)	$ (69,336)	$ (63,909)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net increase in net assets resulting from operations	$ 66,209	$ 45,588	$ 73,636
Adjustments to reconcile net increase in net assets resulting from operations to net cash provided by (used in) operating activities:
Investments in portfolio companies	(236,404)	(217,226)	(546,882)
Proceeds from sales and repayments of debt investments in portfolio companies	223,154	247,455	312,806
Proceeds from sales and return of capital of equity investments in portfolio companies	15,595	0	0
Net unrealized (appreciation) depreciation	(46,319)	1,702	(25,095)
Net realized loss on portfolio investments	34,010	3,936	498
Realized loss on extinguishment of debt	0	0	2,430
Amortization of deferred financing costs	2,053	1,463	1,277
Amortization of deferred offering costs	129	276	230
Accretion of unearned income	(7,833)	(5,054)	(5,139)
Payment-in-kind interest	(5,023)	(4,057)	(5,361)
Cumulative dividends	(172)	(669)	0
Deferred tax provision	2,897	362	0
Changes in other assets and liabilities:
Interest and dividend receivable	116	1,074	(4,688)
Prepaid and other assets	329	(361)	380
Management and incentive fees payable	1,703	1,853	1,137
Interest payable	823	2,350	2,807
Accounts payable and other liabilities	(1,037)	(2,016)	816
Net cash provided by (used in) operating activities	50,230	76,676	(191,148)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of common stock	8,500	750	674
Redemption of common stock	(24,427)	(15,984)	(10,065)
Payment of offering costs	(129)	(276)	(230)
Dividends paid	(36,438)	(33,018)	(18,725)
Proceeds from Credit Facilities	150,000	115,000	489,688
Repayments on Credit Facilities	(136,000)	(220,000)	(364,816)
Proceeds from Series A Notes due 2026	0	72,500	77,500
Proceeds from Main Street Term Loan	0	0	60,000
Repayments of Main Street Term Loan	0	0	(60,000)
Payment of deferred financing costs	(2,262)	(149)	(6,131)
Net cash provided by (used in) financing activities	(40,756)	(81,177)	167,895
Net increase (decrease) in cash and cash equivalents	9,474	(4,501)	(23,253)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	21,312	25,813	49,066
CASH AND CASH EQUIVALENTS AT END OF PERIOD	30,786	21,312	25,813
Supplemental cash flow disclosures:
Interest paid	33,594	20,610	10,385
Taxes paid	2,003	2,469	1,324
Non-cash financing activities:
Dividends declared and unpaid	14,019	12,816	11,974
Value of shares issued pursuant to the DRIP	$ 18,417	$ 17,750	$ 11,160

Consolidated Schedule of Invest

Consolidated Schedule of Investments - USD ($) $ in Thousands		Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
Schedule of Investments [Line Items]
Cost		$ 1,038,318	[1]	$ 1,059,886	[2]
Fair value		$ 1,092,895	[3]	$ 1,068,143	[4]
Investment owned, percent of net assets		175.60%		175.20%
Money market accounts and money market funds
Schedule of Investments [Line Items]
Cost	[1],[5]	$ 20,844
Fair value	[3],[5]	20,844
Short-term investments
Schedule of Investments [Line Items]
Cost	[2],[6]			$ 8,347
Fair value	[4],[6]			8,347
GRT Rubber Technologies LLC
Schedule of Investments [Line Items]
Cost		27,411		26,512
Fair value		43,016		42,163
Volusion, LLC
Schedule of Investments [Line Items]
Cost		11,710		14,451
Fair value		4,010		6,392
Analytical Systems Keco Holdings, LLC
Schedule of Investments [Line Items]
Cost		2,560		2,619
Fair value		2,284		2,013
Batjer TopCo, LLC
Schedule of Investments [Line Items]
Cost		1,644		1,659
Fair value		1,885		1,659
Brewer Crane Holdings, LLC
Schedule of Investments [Line Items]
Cost		2,445		2,561
Fair value		2,774		3,261
Centre Technologies Holdings, LLC
Schedule of Investments [Line Items]
Cost		5,895		5,262
Fair value		7,154		5,901
Chamberlin Holding LLC
Schedule of Investments [Line Items]
Cost		7,157		7,531
Fair value		11,950		10,642
Clad-Rex Steel, LLC
Schedule of Investments [Line Items]
Cost		4,338		4,753
Fair value		3,936		5,092
Cody Pools, Inc.
Schedule of Investments [Line Items]
Cost		9,166		9,126
Fair value		25,231		21,705
Colonial Electric Company LLC
Schedule of Investments [Line Items]
Cost		7,608		7,649
Fair value		7,927		8,019
Compass Systems & Sales, LLC
Schedule of Investments [Line Items]
Cost		6,038
Fair value		6,038
Datacom, LLC
Schedule of Investments [Line Items]
Cost		1,226		1,210
Fair value		903		1,190
Digital Products Holdings LLC
Schedule of Investments [Line Items]
Cost		6,064		6,253
Fair value		6,132		6,337
Direct Marketing Solutions, Inc.
Schedule of Investments [Line Items]
Cost		7,287		7,401
Fair value		10,399		10,910
Gamber-Johnson Holdings, LLC
Schedule of Investments [Line Items]
Cost		17,759		20,170
Fair value		37,700		28,740
GFG Group, LLC
Schedule of Investments [Line Items]
Cost		3,529		4,004
Fair value		5,206		4,626
Gulf Publishing Holdings, LLC
Schedule of Investments [Line Items]
Cost		2,920		2,920
Fair value		1,191		1,521
IG Investor, LLC
Schedule of Investments [Line Items]
Cost		12,642
Fair value		12,642
Integral Energy Services
Schedule of Investments [Line Items]
Cost	[7]	18,586
Fair value	[7]	16,772
Kickhaefer Manufacturing Company, LLC
Schedule of Investments [Line Items]
Cost		9,192		9,344
Fair value		8,987		8,567
MH Corbin Holding LLC
Schedule of Investments [Line Items]
Cost		3,950		4,139
Fair value		1,336		1,137
Mystic Logistics Holdings, LLC
Schedule of Investments [Line Items]
Cost		2,116		2,116
Fair value		8,034		7,144
NexRev LLC
Schedule of Investments [Line Items]
Cost		4,488		4,881
Fair value		4,025		2,399
NuStep, LLC
Schedule of Investments [Line Items]
Cost		8,570		8,765
Fair value		9,105		9,003
Oneliance, LLC
Schedule of Investments [Line Items]
Cost		1,628		1,644
Fair value		1,621		1,644
Orttech Holdings, LLC
Schedule of Investments [Line Items]
Cost		7,950		8,312
Fair value		9,770		8,752
Pinnacle TopCo, LLC
Schedule of Investments [Line Items]
Cost		10,712
Fair value		10,712
Robbins Bros. Jewelry, Inc.
Schedule of Investments [Line Items]
Cost		4,969		5,124
Fair value		3,415		5,544
SI East, LLC
Schedule of Investments [Line Items]
Cost		18,897		30,201
Fair value		24,944		34,479
Student Resource Center, LLC
Schedule of Investments [Line Items]
Cost		5,426	[7]	5,063	[8]
Fair value		3,543	[7]	5,063	[8]
Tedder Industries, LLC
Schedule of Investments [Line Items]
Cost		6,877		6,568
Fair value		3,997		6,160
Trantech Radiator Topco, LLC
Schedule of Investments [Line Items]
Cost		3,138		3,121
Fair value		5,160		3,930
VVS Holdco LLC
Schedule of Investments [Line Items]
Cost		9,986		10,376
Fair value		9,986		10,406
AAC Holdings, Inc.
Schedule of Investments [Line Items]
Cost		8,185	[9]	7,111	[10]
Fair value		5,107	[9]	4,110	[10]
AB Centers Acquisition Corporation
Schedule of Investments [Line Items]
Cost		4,008	[7]	2,002	[8]
Fair value		4,157	[7]	2,064	[8]
Acumera, Inc.
Schedule of Investments [Line Items]
Cost		11,817	[7]	5,859	[8]
Fair value		12,004	[7]	5,995	[8]
Adams Publishing Group, LLC
Schedule of Investments [Line Items]
Cost		3,463	[7]	3,384	[8]
Fair value		3,398	[7]	3,391	[8]
AMEREQUIP LLC.
Schedule of Investments [Line Items]
Cost		1,621	[7]	2,106	[8]
Fair value		1,638	[7]	2,105	[8]
American Health Staffing Group, Inc.
Schedule of Investments [Line Items]
Cost		8,130	[7]	8,193	[8]
Fair value		8,178	[7]	8,258	[8]
American Nuts, LLC
Schedule of Investments [Line Items]
Cost		9,056	[7]	8,833	[8]
Fair value		6,624	[7]	8,309	[8]
American Teleconferencing Services, Ltd.
Schedule of Investments [Line Items]
Cost		13,826	[9]	13,826	[10]
Fair value		635	[9]	794	[10]
ArborWorks, LLC
Schedule of Investments [Line Items]
Cost		12,364	[7]	18,091	[8]
Fair value		12,240	[7]	15,408	[8]
ATS Operating, LLC
Schedule of Investments [Line Items]
Cost		1,972	[7]	1,914	[8]
Fair value		1,990	[7]	1,920	[8]
AVEX Aviation Holdings, LLC
Schedule of Investments [Line Items]
Cost		3,438	[7]	3,918	[8]
Fair value		3,463	[7]	3,924	[8]
Berry Aviation, Inc.
Schedule of Investments [Line Items]
Cost		0	[7]	1,350	[8]
Fair value		2,760	[7]	5,021	[8]
Bettercloud, Inc.
Schedule of Investments [Line Items]
Cost		8,401	[7]	7,826	[8]
Fair value		7,980	[7]	7,969	[8]
Bluestem Brands, Inc.
Schedule of Investments [Line Items]
Cost		6,451	[9]	3,566	[10]
Fair value		6,264	[9]	9,247	[10]
Boccella Precast Products LLC
Schedule of Investments [Line Items]
Cost		644		644
Fair value		578		821
Bond Brand Loyalty ULC
Schedule of Investments [Line Items]
Cost	[7],[11],[12]	8,284
Fair value	[7],[11],[12]	8,374
Brightwood Capital Fund Investments
Schedule of Investments [Line Items]
Cost		11,007	[11],[13]	11,186	[14],[15]
Fair value		10,076	[11],[13]	10,658	[14],[15]
Buca C, LLC
Schedule of Investments [Line Items]
Cost		14,530		14,780
Fair value		8,218		8,345
Burning Glass Intermediate Holding Company, Inc.
Schedule of Investments [Line Items]
Cost		13,266	[7]	13,051	[8]
Fair value		13,431	[7]	13,255	[8]
CAI Software LLC
Schedule of Investments [Line Items]
Cost		379		379
Fair value		379		379
Career Team Holdings, LLC
Schedule of Investments [Line Items]
Cost		2,781		2,693
Fair value		2,781		2,693
CaseWorthy, Inc.
Schedule of Investments [Line Items]
Cost		4,609	[7]	4,627	[8]
Fair value		4,643	[7]	4,645	[8]
Channel Partners Intermediateco, LLC
Schedule of Investments [Line Items]
Cost		4,116	[7]	3,692	[8]
Fair value		4,018	[7]	3,708	[8]
Classic H&G Holdings, LLC
Schedule of Investments [Line Items]
Cost		7,354		7,321
Fair value		9,959		12,119
Computer Data Source, LLC
Schedule of Investments [Line Items]
Cost		19,221	[7]	19,480	[8]
Fair value		18,837	[7]	18,272	[8]
CQ Fluency, LLC
Schedule of Investments [Line Items]
Cost	[7]	7,192
Fair value	[7]	7,192
DMA Industries, LLC
Schedule of Investments [Line Items]
Cost		6,128		6,703
Fair value		6,620		7,120
DTE Enterprises, LLC
Schedule of Investments [Line Items]
Cost		2,060	[7]	8,046	[8]
Fair value		1,543	[7]	7,518	[8]
Dynamic Communities, LLC
Schedule of Investments [Line Items]
Cost		3,919	[7]	3,487	[8]
Fair value		3,831	[7]	3,487	[8]
Elgin AcquireCo, LLC
Schedule of Investments [Line Items]
Cost		2,085		2,201
Fair value		2,108		2,201
Engineering Research & Consulting, LLC
Schedule of Investments [Line Items]
Cost		5,012	[7]	5,097	[8],[16]
Fair value		5,095	[7]	5,200	[8],[16]
Escalent, Inc.
Schedule of Investments [Line Items]
Cost	[7]	6,907
Fair value	[7]	7,105
Event Holdco, LLC
Schedule of Investments [Line Items]
Cost		3,965	[7]	3,968	[8]
Fair value		3,916	[7]	3,799	[8]
Garyline, LLC
Schedule of Investments [Line Items]
Cost	[7]	9,518
Fair value	[7]	9,518
Hawk Ridge Systems, LLC
Schedule of Investments [Line Items]
Cost		10,940		9,694
Fair value		14,838		13,596
HDC/HW Intermediate Holdings
Schedule of Investments [Line Items]
Cost		2,241	[7]	1,951	[8]
Fair value		2,035	[7]	1,906	[8]
HEADLANDS OP-CO LLC
Schedule of Investments [Line Items]
Cost		6,802	[7]	4,848	[8]
Fair value		6,906	[7]	4,939	[8]
IG Parent Corporation
Schedule of Investments [Line Items]
Cost		8,108	[9]	8,633	[10]
Fair value		8,208	[9]	8,756	[10]
Imaging Business Machines, L.L.C.
Schedule of Investments [Line Items]
Cost	[7]	11,439
Fair value	[7]	11,654
Industrial Services Acquisition, LLC
Schedule of Investments [Line Items]
Cost		14,725	[7]	13,713	[8]
Fair value		14,492	[7]	13,213	[8]
Infinity X1 Holdings, LLC
Schedule of Investments [Line Items]
Cost		5,314
Fair value		5,314
Infolinks Media Buyco, LLC
Schedule of Investments [Line Items]
Cost		11,408	[7]	10,528	[8]
Fair value		11,571	[7]	10,694	[8]
Insight Borrower Corporation
Schedule of Investments [Line Items]
Cost	[7]	8,309
Fair value	[7]	8,453
Inspire Aesthetics Management, LLC
Schedule of Investments [Line Items]
Cost	[7]	8,327
Fair value	[7]	8,235
Interface Security Systems, L.L.C
Schedule of Investments [Line Items]
Cost		9,089	[7]	8,936	[8]
Fair value		2,214	[7]	2,767	[8]
Invincible Boat Company, LLC.
Schedule of Investments [Line Items]
Cost		17,267	[7]	17,668	[8]
Fair value		17,024	[7]	17,770	[8]
Iron-Main Investments, LLC
Schedule of Investments [Line Items]
Cost		12,095		9,377
Fair value		12,076		9,377
Isagenix International, LLC
Schedule of Investments [Line Items]
Cost	[9]	2,374
Fair value	[9]	2,301
ITA Holdings Group, LLC
Schedule of Investments [Line Items]
Cost		2,588
Fair value		2,588
Jackmont Hospitality, Inc.
Schedule of Investments [Line Items]
Cost		5,813		5,333	[8]
Fair value		7,813		6,373	[8]
Joerns Healthcare, LLC
Schedule of Investments [Line Items]
Cost		9,062	[9]	8,938	[10]
Fair value		1,985	[9]	2,353	[10]
Johnson Downie Opco, LLC
Schedule of Investments [Line Items]
Cost		3,045		1,440
Fair value		3,760		1,731
JorVet Holdings, LLC
Schedule of Investments [Line Items]
Cost		4,007		3,995
Fair value		4,007		3,995
JTI Electrical & Mechanical, LLC
Schedule of Investments [Line Items]
Cost		3,356	[7]	3,139	[8]
Fair value		3,401	[7]	3,288	[8]
KMS, LLC
Schedule of Investments [Line Items]
Cost		10,440	[7]	10,488	[8]
Fair value		9,655	[7]	10,022	[8]
LL Management, Inc.
Schedule of Investments [Line Items]
Cost		22,810	[7]	22,944	[8]
Fair value		22,899	[7]	22,884	[8]
Mako Steel, LP
Schedule of Investments [Line Items]
Cost		16,532	[7]	20,240	[8]
Fair value		16,721	[7]	20,385	[8]
MB2 Dental Solutions, LLC
Schedule of Investments [Line Items]
Cost		17,800	[9]	16,006	[10]
Fair value		17,988	[9]	16,235	[10]
Metalforming Holdings, LLC
Schedule of Investments [Line Items]
Cost		2,263		2,250
Fair value		2,260		2,250
Microbe Formulas, LLC
Schedule of Investments [Line Items]
Cost		2,626	[7]	3,078	[8]
Fair value		2,665	[7]	3,027	[8]
Mini Melts of America, LLC
Schedule of Investments [Line Items]
Cost	[7]	6,557
Fair value	[7]	6,557
MonitorUS Holding, LLC
Schedule of Investments [Line Items]
Cost		9,122	[7],[11],[12]	7,885	[8],[14],[17]
Fair value		9,471	[7],[11],[12]	8,282	[8],[14],[17]
NinjaTrader, LLC
Schedule of Investments [Line Items]
Cost		14,679	[7]	11,500	[8]
Fair value		14,854	[7]	11,611	[8]
Paragon Healthcare, Inc.
Schedule of Investments [Line Items]
Cost		2,815	[7]	2,704	[8]
Fair value		2,863	[7]	2,736	[8]
Power System Solutions
Schedule of Investments [Line Items]
Cost	[7]	8,191
Fair value	[7]	8,369
PrimeFlight Aviation Services
Schedule of Investments [Line Items]
Cost	[7]	6,366
Fair value	[7]	6,540
PTL US Bidco, Inc
Schedule of Investments [Line Items]
Cost		1,896	[7],[11],[12]	1,805	[14],[18]
Fair value		1,916	[7],[11],[12]	1,816	[14],[18]
Purge Rite, LLC
Schedule of Investments [Line Items]
Cost	[7]	5,096
Fair value	[7]	5,096
RA Outdoors LLC
Schedule of Investments [Line Items]
Cost		13,618	[7]	12,778	[8]
Fair value		12,834	[7]	11,674	[8]
Richardson Sales Solutions
Schedule of Investments [Line Items]
Cost	[7]	11,042
Fair value	[7]	11,180
Roof Opco, LLC
Schedule of Investments [Line Items]
Cost		8,290	[7]	7,116	[8]
Fair value		8,224	[7]	7,273	[8]
Rug Doctor, LLC.
Schedule of Investments [Line Items]
Cost		15,380	[7]	15,402	[8]
Fair value		15,367	[7]	13,890	[8]
Slick Innovations, LLC
Schedule of Investments [Line Items]
Cost		2,891		3,448
Fair value		3,460		3,860
South Coast Terminals Holdings, LLC
Schedule of Investments [Line Items]
Cost		3,038	[7]	3,522	[8]
Fair value		3,072	[7]	3,609	[8]
SPAU Holdings, LLC
Schedule of Investments [Line Items]
Cost		5,043	[7]	5,069	[8]
Fair value		5,085	[7]	5,157	[8]
The Affiliati Network, LLC
Schedule of Investments [Line Items]
Cost		3,538		3,967
Fair value		3,521		3,967
U.S. TelePacific Corp.
Schedule of Investments [Line Items]
Cost	[9]	2,638
Fair value	[9]	2,438
USA DeBusk LLC
Schedule of Investments [Line Items]
Cost	[7]	19,518
Fair value	[7]	19,745
Wall Street Prep, Inc.
Schedule of Investments [Line Items]
Cost		5,095	[7]	5,745	[8]
Fair value		5,559	[7]	5,739	[8]
Watterson Brands, LLC
Schedule of Investments [Line Items]
Cost		4,378	[7]	4,180	[8]
Fair value		4,427	[7]	4,245	[8]
West Star Aviation Acquisition, LLC
Schedule of Investments [Line Items]
Cost		5,199	[7]	3,120	[8]
Fair value		5,469	[7]	3,192	[8]
Winter Services LLC
Schedule of Investments [Line Items]
Cost		16,752	[7]	12,219	[8]
Fair value		16,986	[7]	12,444	[8]
World Micro Holdings, LLC
Schedule of Investments [Line Items]
Cost		2,131		2,460
Fair value		2,131		2,460
Xenon Arc, Inc.
Schedule of Investments [Line Items]
Cost		3,479	[7]	3,495	[8]
Fair value		3,540	[7]	3,540	[8]
Zips Car Wash, LLC
Schedule of Investments [Line Items]
Cost		2,941	[7]	2,951	[8]
Fair value		2,789	[7]	2,985	[8]
ATX Networks Corp.
Schedule of Investments [Line Items]
Cost	[10]			8,603
Fair value	[10]			12,272
Flame King Holdings, LLC
Schedule of Investments [Line Items]
Cost				9,660
Fair value				11,600
Market Force Information, LLC
Schedule of Investments [Line Items]
Cost				10,623
Fair value				403
Sonic Systems International, LLC
Schedule of Investments [Line Items]
Cost	[8]			19,727
Fair value	[8]			19,915
Archer Systems, LLC
Schedule of Investments [Line Items]
Cost	[8]			2,223
Fair value	[8]			2,228
BBB Tank Services, LLC
Schedule of Investments [Line Items]
Cost				1,441
Fair value				722
Dalton US Inc.
Schedule of Investments [Line Items]
Cost	[8]			1,088
Fair value	[8]			1,107
Flip Electronics LLC
Schedule of Investments [Line Items]
Cost	[8]			12,873
Fair value	[8]			13,145
Independent Pet Partners Intermediate Holdings, LLC
Schedule of Investments [Line Items]
Cost	[8]			14,564
Fair value	[8]			4,974
NWN Corporation
Schedule of Investments [Line Items]
Cost	[8]			25,060
Fair value	[8]			24,167
RM Bidder, LLC
Schedule of Investments [Line Items]
Cost	[8]			315
Fair value	[8]			13
SIB Holdings, LLC
Schedule of Investments [Line Items]
Cost	[8]			12,245
Fair value	[8]			11,451
Control investments
Schedule of Investments [Line Items]
Cost		43,159	[1],[19]	31,120	[2],[20]
Fair value		$ 53,644	[3],[19]	$ 50,303	[4],[20]	$ 46,583
Investment owned, percent of net assets		8.60%		8.30%
Affiliate investments
Schedule of Investments [Line Items]
Cost		$ 231,378	[1],[21]	$ 241,565	[2],[22]
Fair value		$ 291,279	[3],[21]	$ 277,000	[4],[22]	234,158
Investment owned, percent of net assets		46.80%		45.40%
Non‑Control/Non‑Affiliate investments
Schedule of Investments [Line Items]
Cost		$ 763,781	[1],[23]	$ 787,201	[2],[24]
Fair value		$ 747,972	[3],[23]	$ 740,840	[4],[24]
Investment owned, percent of net assets		120.20%		121.50%
Investment, Identifier [Axis]: Flame King Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Fair value		$ 6,970		$ 4,400
Investment, Identifier [Axis]: AAC Holdings, Inc., Common Stock
Schedule of Investments [Line Items]
Units (in shares)		593,927	[9]	593,927	[10]
Cost		$ 3,148	[9]	$ 3,148	[10]
Fair value		$ 0	[9]	$ 0	[10]
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[10]			18%
PIK Rate	[10]			18%
Principal	[10]			$ 4,173
Cost	[10]			3,963
Fair value	[10]			$ 4,110
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[9]	18%
PIK Rate	[9]	18%
Principal	[9]	$ 151
Cost	[9]	149
Fair value	[9]	$ 149
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[9]	18%
PIK Rate	[9]	18%
Principal	[9]	$ 5,014
Cost	[9]	4,888
Fair value	[9]	$ 4,958
Investment, Identifier [Axis]: AAC Holdings, Inc., Warrants
Schedule of Investments [Line Items]
Units (in shares)		197,717	[9],[25]	197,717	[10],[26]
Cost		$ 0	[9],[25]	$ 0	[10],[26]
Fair value		$ 0	[9],[25]	$ 0	[10],[26]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		5%	[7],[27],[28]	6%	[8],[16]
Principal		$ 0	[7],[27],[28]	$ 0	[8],[16]
Cost		(20)	[7],[27],[28]	(5)	[8],[16]
Fair value		$ 0	[7],[27],[28]	$ (5)	[8],[16]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.43%	[7],[28]	10.20%	[8],[16]
Reference Rate and Spread		6%	[7],[28]	6%	[8],[16]
Principal		$ 1,081	[7],[28]	$ 86	[8],[16]
Cost		1,066	[7],[28]	77	[8],[16]
Fair value		$ 1,081	[7],[28]	$ 86	[8],[16]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.43%	[7],[28]	10.58%	[8],[16]
Reference Rate and Spread		6%	[7],[28]	6%	[8],[16]
Principal		$ 2,304	[7],[28]	$ 1,983	[8],[16]
Cost		2,219	[7],[28]	1,930	[8],[16]
Fair value		$ 2,304	[7],[28]	$ 1,983	[8],[16]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[7],[28]	11.43%
Reference Rate and Spread	[7],[28]	6%
Principal	[7],[28]	$ 772
Cost	[7],[28]	743
Fair value	[7],[28]	$ 772
Investment, Identifier [Axis]: ADS Tactical, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.22%	[9],[28]	10.14%	[10],[16]
Reference Rate and Spread		5.75%	[9],[28]	5.75%	[10],[16]
Principal		$ 4,250	[9],[28]	$ 9,125	[10],[16]
Cost		4,210	[9],[28]	8,996	[10],[16]
Fair value		4,214	[9],[28]	$ 8,213	[10],[16]
Investment, Identifier [Axis]: AFG Capital Group, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)	[29]			46
Cost	[29]			$ 300
Fair value		$ 0		$ 2,350	[29]	1,930
Investment, Identifier [Axis]: AFG Capital Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate				10%
Fair value				$ 0		36
Investment, Identifier [Axis]: AMEREQUIP LLC., Common Stock
Schedule of Investments [Line Items]
Units (in shares)		11	[7],[30]	11	[8]
Cost		$ 83	[7],[30]	$ 80	[8]
Fair value		$ 100	[7],[30]	$ 80	[8]
Investment, Identifier [Axis]: AMEREQUIP LLC., Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		7.40%	[7],[27],[28]	7.40%	[8],[16]
Principal		$ 0	[7],[27],[28]	$ 0	[8],[16]
Cost		0	[7],[27],[28]	0	[8],[16]
Fair value		$ 0	[7],[27],[28]	$ 0	[8],[16]
Investment, Identifier [Axis]: AMEREQUIP LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.76%	[7],[28]	11.72%	[8],[16]
Reference Rate and Spread		7.40%	[7],[28]	7.40%	[8],[16]
Principal		$ 1,538	[7],[28]	$ 2,026	[8],[16]
Cost		1,538	[7],[28]	2,026	[8],[16]
Fair value		$ 1,538	[7],[28]	$ 2,025	[8],[16]
Investment, Identifier [Axis]: ATS Operating, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		100,000	[7]	100,000	[8]
Cost		$ 100	[7]	$ 100	[8]
Fair value		$ 90	[7]	$ 90	[8]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[28]	12.16%
Reference Rate and Spread		6.50%	[7],[28]	5.50%	[8],[16]
Principal		$ 50	[7],[28]	$ 0	[8],[16]
Cost		50	[7],[28]	0	[8],[16]
Fair value		$ 50	[7],[28]	$ 0	[8],[16]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.16%	[7],[28]	9.32%	[8],[16]
Reference Rate and Spread		5.50%	[7],[28]	5.50%	[8],[16]
Principal		$ 925	[7],[28]	$ 925	[8],[16]
Cost		911	[7],[28]	907	[8],[16]
Fair value		$ 925	[7],[28]	$ 914	[8],[16]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.16%	[7],[28]	11.32%	[8],[16]
Reference Rate and Spread		7.50%	[7],[28]	7.50%	[8],[16]
Principal		$ 925	[7],[28]	$ 925	[8],[16]
Cost		911	[7],[28]	907	[8],[16]
Fair value		925	[7],[28]	$ 916	[8],[16]
Investment, Identifier [Axis]: ATX Networks Corp., Common Stock
Schedule of Investments [Line Items]
Units (in shares)	[10]			585
Cost	[10]			$ 0
Fair value		$ 0		$ 3,290	[10]	0
Investment, Identifier [Axis]: ATX Networks Corp., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[10],[16]			12.23%
Reference Rate and Spread		7.50%		7.50%	[10],[16]
Principal	[10],[16]			$ 6,811
Cost	[10],[16]			6,266
Fair value		$ 0		$ 6,368	[10],[16]	7,121
Investment, Identifier [Axis]: ATX Networks Corp., Unsecured Debt
Schedule of Investments [Line Items]
Total Rate		10%		10%	[10]
PIK Rate	[10]			10%
Principal	[10]			$ 3,417
Cost	[10]			2,337
Fair value		$ 0		$ 2,614	[10]	1,977
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		137	[7],[30]	50	[8]
Cost		$ 134	[7],[30]	$ 50	[8]
Fair value		$ 124	[7],[30]	$ 56	[8]
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		7.25%	[7],[27],[28]	7.25%	[8],[16]
Principal		$ 0	[7],[27],[28]	$ 0	[8],[16]
Cost		(17)	[7],[27],[28]	(8)	[8],[16]
Fair value		$ (5)	[7],[27],[28]	$ (8)	[8],[16]
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.76%	[7],[28]	12.17%	[8],[16]
Reference Rate and Spread		7.25%	[7],[28]	7.25%	[8],[16]
Principal		$ 3,417	[7],[28]	$ 4,038	[8],[16]
Cost		3,321	[7],[28]	3,876	[8],[16]
Fair value		$ 3,344	[7],[28]	$ 3,876	[8],[16]
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8],[16]			13.88%
Reference Rate and Spread		7.50%	[7],[27],[28]	9.50%	[8],[16]
Principal		$ 0	[7],[27],[28]	$ 4,616	[8],[16]
Cost		(8)	[7],[27],[28]	4,511	[8],[16]
Fair value		$ (8)	[7],[27],[28]	$ 4,616	[8],[16]
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.98%	[7],[28]	13.57%	[8],[16]
Reference Rate and Spread		7.50%	[7],[28]	9%	[8],[16]
Principal		$ 11,922	[7],[28]	$ 1,379	[8],[16]
Cost		11,825	[7],[28]	1,348	[8],[16]
Fair value		$ 11,922	[7],[28]	$ 1,379	[8],[16]
Investment, Identifier [Axis]: Acumera, Inc., Warrants
Schedule of Investments [Line Items]
Units (in shares)	[7],[31]	14,953
Cost	[7],[31]	$ 0
Fair value	[7],[31]	$ 90
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11%	[7],[28],[32]	10%	[8],[16],[33]
Reference Rate and Spread		7%	[7],[28],[32]	6%	[8],[16],[33]
PIK Rate	[7],[28],[32]	1%
Principal		$ 936	[7],[28],[32]	$ 565	[8],[16],[33]
Cost		936	[7],[28],[32]	565	[8],[16],[33]
Fair value		$ 917	[7],[28],[32]	$ 565	[8],[16],[33]
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11%	[7],[28],[32]	10%	[8],[16],[33]
Reference Rate and Spread		7%	[7],[28],[32]	7.50%	[8],[16],[33]
PIK Rate	[7],[28],[32]	1%
Principal		$ 2,531	[7],[28],[32]	$ 2,826	[8],[16],[33]
Cost		2,527	[7],[28],[32]	2,819	[8],[16],[33]
Fair value		$ 2,481	[7],[28],[32]	$ 2,826	[8],[16],[33]
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		5%	[7],[27],[28]	6%	[8],[16]
Principal		$ 0	[7],[27],[28]	$ 0	[8],[16]
Cost		(10)	[7],[27],[28]	(13)	[8],[16]
Fair value		$ (10)	[7],[27],[28]	$ (13)	[8],[16]
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%	[7],[28]	11.12%	[8],[16]
Reference Rate and Spread		5%	[7],[28]	6%	[8],[16]
Principal		$ 8,188	[7],[28]	$ 8,271	[8],[16]
Cost		8,140	[7],[28]	8,206	[8],[16]
Fair value		$ 8,188	[7],[28]	$ 8,271	[8],[16]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.29%	[7],[28]	10.46%	[8],[16]
Reference Rate and Spread		9.75%	[7],[28]	6.75%	[8],[16]
PIK Rate	[7],[28]	15.29%
Principal		$ 4,833	[7],[28]	$ 4,438	[8],[16]
Cost		4,812	[7],[28]	4,416	[8],[16]
Fair value		$ 4,102	[7],[28]	$ 4,148	[8],[16]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.29%	[7],[28]	12.46%	[8],[16]
Reference Rate and Spread		9.75%	[7],[28]	8.75%	[8],[16]
PIK Rate	[7],[28]	15.29%
Principal		$ 0	[7],[28]	$ 4,438	[8],[16]
Cost		0	[7],[28]	4,417	[8],[16]
Fair value		$ 0	[7],[28]	$ 4,161	[8],[16]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[7],[28],[34]	17.29%
Reference Rate and Spread	[7],[28],[34]	11.75%
PIK Rate	[7],[28],[34]	17.29%
Principal	[7],[28],[34]	$ 4,270
Cost	[7],[28],[34]	4,244
Fair value	[7],[28],[34]	$ 2,522
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[7],[28],[34]	17.29%
Reference Rate and Spread	[7],[28],[34]	11.75%
PIK Rate	[7],[28],[34]	17.29%
Principal	[7],[28],[34]	$ 0
Cost	[7],[28],[34]	0
Fair value	[7],[28],[34]	0
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[10],[35]			7.50%
Reference Rate and Spread	[10],[35]			6.50%
Principal		2,425	[9],[34],[36]	$ 2,425	[10],[35]
Cost		2,375	[9],[34],[36]	2,375	[10],[35]
Fair value		109	[9],[34],[36]	$ 136	[10],[35]
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[10],[16],[35]			7.50%
Reference Rate and Spread	[10],[16],[35]			6.50%
Principal		11,693	[9],[34],[36]	$ 11,693	[10],[16],[35]
Cost		11,451	[9],[34],[36]	11,451	[10],[16],[35]
Fair value		$ 526	[9],[34],[36]	658	[10],[16],[35]
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		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]
Fair value				$ 0		0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		607		607
Cost		$ 607		$ 607
Fair value		$ 1,210		$ 880
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Total Rate		14.13%		14.13%
Fair value		$ 0		$ 0		0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		800		800
Total Rate		14.13%		14.13%
Cost		$ 800		$ 800
Fair value		0		0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Fair value		$ 1,210		$ 880		1,220
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[28]	15.38%
Reference Rate and Spread		10%	[28]	10%	[16]
Principal		$ 55	[28]	$ 0	[16]
Cost		54	[28]	(2)	[16]
Fair value		$ 54	[28]	$ (2)	[16]	(4)
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.38%	[28]	14.13%	[16]
Reference Rate and Spread		10%	[28]	10%	[16]
Principal		$ 1,031	[28]	$ 1,166	[16]
Cost		1,020	[28]	1,135	[16]
Fair value		$ 1,020	[28]	$ 1,135	[16]	1,182
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Warrants
Schedule of Investments [Line Items]
Units (in shares)		105	[25]	105	[26]
Cost		$ 79	[25]	$ 79	[26]
Fair value		$ 0	[25]	$ 0	[26]	0
Investment, Identifier [Axis]: ArborWorks, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		2,070	[7]	124	[8]
Cost		$ 124	[7]	$ 124	[8]
Fair value		$ 0	[7]	$ 0	[8]
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 1
Schedule of Investments [Line Items]
Units (in shares)	[7]	17,265
Cost	[7]	$ 7,468
Fair value	[7]	$ 7,468
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 2
Schedule of Investments [Line Items]
Units (in shares)	[7]	17,265
Cost	[7]	$ 0
Fair value	[7]	$ 0
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15%	[7]	13.41%	[8],[16]
Reference Rate and Spread	[8],[16]			9%
PIK Rate	[7]	15%
Principal		$ 1,007	[7]	$ 2,484	[8],[16]
Cost		1,007	[7]	2,427	[8],[16]
Fair value		$ 1,007	[7]	$ 2,095	[8],[16]
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.04%	[7],[28]	13.56%	[8],[16]
Reference Rate and Spread		6.50%	[7],[28]	9%	[8],[16]
PIK Rate	[7],[28]	12.04%
Principal		$ 3,765	[7],[28]	$ 15,786	[8],[16]
Cost		3,765	[7],[28]	15,540	[8],[16]
Fair value		$ 3,765	[7],[28]	$ 13,313	[8],[16]
Investment, Identifier [Axis]: Archer Systems, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		62,402	[7]	62,402	[8]
Cost		$ 62	[7]	$ 62	[8]
Fair value		$ 100	[7]	$ 62	[8]
Investment, Identifier [Axis]: Archer Systems, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread	[8],[16]			6.50%
Principal	[8],[16]			$ 0
Cost	[8],[16]			(4)
Fair value	[8],[16]			$ (4)
Investment, Identifier [Axis]: Archer Systems, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[8],[16]			10.92%
Reference Rate and Spread	[8],[16]			6.50%
Principal	[8],[16]			$ 2,205
Cost	[8],[16]			2,165
Fair value	[8],[16]			$ 2,170
Investment, Identifier [Axis]: BBB Tank Services, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)				200,000
Cost				$ 200
Fair value				$ 0
Investment, Identifier [Axis]: BBB Tank Services, LLC, Preferred Stock (non-voting)
Schedule of Investments [Line Items]
Total Rate				15%
Cost				$ 41
Fair value				$ 0
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 1
Schedule of Investments [Line Items]
Total Rate	[16],[37]			15.12%
Reference Rate and Spread	[16],[37]			11%
Principal	[16],[37]			$ 200
Cost	[16],[37]			200
Fair value	[16],[37]			$ 200
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 2
Schedule of Investments [Line Items]
Total Rate	[16],[37]			15.12%
Reference Rate and Spread	[16],[37]			11%
Principal	[16],[37]			$ 1,000
Cost	[16],[37]			1,000
Fair value	[16],[37]			$ 522
Investment, Identifier [Axis]: Barfly Ventures, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		12	[7]	12	[8]
Cost		$ 528	[7]	$ 528	[8]
Fair value		$ 1,380	[7]	$ 1,107	[8]	643
Investment, Identifier [Axis]: Batjer TopCo, LLC, Preferred Stock
Schedule of Investments [Line Items]
Units (in shares)		453	[30]	453	[29]
Cost		$ 455	[30]	$ 455	[29]
Fair value		$ 680	[30]	455	[29]	0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10%
Principal		$ 0	[27]	0
Cost		(1)	[27]	(1)
Fair value		$ 0	[27]	$ (1)		0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		11%
Principal		$ 30		$ 1,225
Cost		30		1,205
Fair value		$ 30		1,205
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		10%
Fair value		$ 30		$ 0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2.2
Schedule of Investments [Line Items]
Total Rate				11%
Fair value				$ 1,205		0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10%
Principal		$ 1,175
Cost		1,160
Fair value		$ 1,175		$ 1,205
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		122,416	[7],[38]	122,416	[8],[29],[39]
PIK Rate	[8],[29],[39]			16%
Cost		$ 0	[7],[38]	$ 0	[8],[29],[39]
Fair value		$ 200	[7],[38]	$ 270	[8],[29],[39]
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		1,548,387	[7],[30],[38]	1,548,387	[8],[29],[39]
Total Rate	[8],[29],[39]			8%
PIK Rate	[8],[29],[39]			8%
Cost		$ 0	[7],[30],[38]	$ 1,161	[8],[29],[39]
Fair value		$ 2,560	[7],[30],[38]	$ 4,561	[8],[29],[39]
Investment, Identifier [Axis]: Berry Aviation, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[8]			12%
PIK Rate	[8]			1.50%
Principal	[8]			$ 190
Cost	[8]			189
Fair value	[8]			$ 190
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		7.25%	[7],[27],[28]	1%	[8],[16]
PIK Rate	[8],[16]			6%
Principal		$ 0	[7],[27],[28]	$ 0	[8],[16]
Cost		(18)	[7],[27],[28]	(22)	[8],[16]
Fair value		$ (18)	[7],[27],[28]	$ (22)	[8],[16]
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.64%	[7],[28]	11.40%	[8],[16]
Reference Rate and Spread		7.25%	[7],[28]	1%	[8],[16]
PIK Rate		6.25%	[7],[28]	6%	[8],[16]
Principal		$ 8,535	[7],[28]	$ 7,991	[8],[16]
Cost		8,419	[7],[28]	7,848	[8],[16]
Fair value		$ 7,998	[7],[28]	$ 7,991	[8],[16]
Investment, Identifier [Axis]: Binswanger Enterprises, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		1,050,000	[7]	1,050,000	[8]
Cost		$ 1,050	[7]	$ 1,050	[8]
Fair value		$ 120	[7]	$ 420	[8]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Common Stock
Schedule of Investments [Line Items]
Units (in shares)		700,446	[9]	700,446	[10],[29]
Cost		$ 0	[9]	$ 0	[10],[29]
Fair value		$ 533	[9]	$ 4,708	[10],[29]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[9],[28]	16%
Reference Rate and Spread		7.50%	[9],[28]	8.50%	[10],[16]
PIK Rate	[9],[28]	15%
Principal		$ 2,035	[9],[28]	$ 0	[10],[16]
Cost		2,035	[9],[28]	0	[10],[16]
Fair value		$ 1,907	[9],[28]	$ 0	[10],[16]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.96%	[9],[28]	12.94%	[10],[16]
Reference Rate and Spread		8.50%	[9],[28]	8.50%	[10],[16]
PIK Rate	[9],[28]	12.96%
Principal		$ 3,941	[9],[28]	$ 3,473	[10],[16]
Cost		3,305	[9],[28]	2,455	[10],[16]
Fair value		$ 3,695	[9],[28]	$ 3,366	[10],[16]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Warrants
Schedule of Investments [Line Items]
Units (in shares)		175,110	[9],[25]	175,110	[10],[26]
Cost		$ 1,111	[9],[25]	$ 1,111	[10],[26]
Fair value		$ 129	[9],[25]	$ 1,173	[10],[26]
Investment, Identifier [Axis]: Boccella Precast Products LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		540,000		540,000	[29]
Cost		$ 564		$ 564	[29]
Fair value		$ 498		$ 741	[29]
Investment, Identifier [Axis]: Boccella Precast Products LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10%		10%
Principal		$ 80		$ 80
Cost		80		80
Fair value		$ 80		$ 80
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)	[7],[11],[12]	360
Cost	[7],[11],[12]	$ 0
Fair value	[7],[11],[12]	$ 0
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)	[7],[11],[12]	360
Cost	[7],[11],[12]	$ 360
Fair value	[7],[11],[12]	$ 310
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread	[7],[11],[12],[27],[28]	7%
Principal	[7],[11],[12],[27],[28]	$ 0
Cost	[7],[11],[12],[27],[28]	(16)
Fair value	[7],[11],[12],[27],[28]	$ (16)
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[11],[12],[28]	11.54%
Reference Rate and Spread	[7],[11],[12],[28]	6%
Principal	[7],[11],[12],[28]	$ 4,040
Cost	[7],[11],[12],[28]	3,970
Fair value	[7],[11],[12],[28]	$ 4,040
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[7],[11],[12],[28]	13.54%
Reference Rate and Spread	[7],[11],[12],[28]	8%
Principal	[7],[11],[12],[28]	$ 4,040
Cost	[7],[11],[12],[28]	3,970
Fair value	[7],[11],[12],[28]	$ 4,040
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		737	[30]	737	[29]
Cost		$ 1,070	[30]	$ 1,070	[29]
Fair value		$ 1,400	[30]	$ 1,770	[29]	1,930
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.46%	[28]	14.12%	[16]
Reference Rate and Spread		10%	[28]	10%	[16]
Principal		$ 1,375	[28]	$ 1,491	[16]
Cost		1,375	[28]	1,491	[16]
Fair value		$ 1,374	[28]	$ 1,491	[16]	2,005
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund III, LP)
Schedule of Investments [Line Items]
Units (percentage)		0.50%	[11],[13],[40]	0.50%	[14],[15],[29],[41]
Cost		$ 2,270	[11],[13],[40]	$ 2,449	[14],[15],[29],[41]
Fair value		$ 1,360	[11],[13],[40]	$ 1,576	[14],[15],[29],[41]
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund IV, LP)
Schedule of Investments [Line Items]
Units (percentage)		1.20%	[11],[13],[30],[40]	1.20%	[14],[15],[29],[41]
Cost		$ 8,737	[11],[13],[30],[40]	$ 8,737	[14],[15],[29],[41]
Fair value		$ 8,716	[11],[13],[30],[40]	$ 9,082	[14],[15],[29],[41]
Investment, Identifier [Axis]: Buca C, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		4		4
Total Rate		6%		6%
PIK Rate		6%		6%
Cost		$ 3,040		$ 3,040
Fair value		$ 0		$ 0
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12%	[36]	9%
Principal		$ 11,490	[36]	$ 11,740
Cost		11,490	[36]	11,740
Fair value		$ 8,218	[36]	$ 8,345
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[28]	10.46%
Reference Rate and Spread		5%	[7],[28]	5%	[8],[16]
Principal		$ 310	[7],[28]	$ 0	[8],[16]
Cost		296	[7],[28]	(19)	[8],[16]
Fair value		$ 310	[7],[28]	$ 0	[8],[16]
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.46%	[7],[28]	8.91%	[8],[16]
Reference Rate and Spread		5%	[7],[28]	5%	[8],[16]
Principal		$ 13,121	[7],[28]	$ 13,255	[8],[16]
Cost		12,970	[7],[28]	13,070	[8],[16]
Fair value		$ 13,121	[7],[28]	$ 13,255	[8],[16]
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 1
Schedule of Investments [Line Items]
Units (in shares)		379,338		379,338	[29]
Cost		$ 379		$ 379	[29]
Fair value		$ 379		$ 379	[29]
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 2
Schedule of Investments [Line Items]
Units (in shares)		126,446		126,446
Cost		$ 0		$ 0
Fair value		$ 0		$ 0
Investment, Identifier [Axis]: CQ Fluency, LLC, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread	[7],[27],[28]	7%
Principal	[7],[27],[28]	$ 0
Cost	[7],[27],[28]	(44)
Fair value	[7],[27],[28]	$ (44)
Investment, Identifier [Axis]: CQ Fluency, LLC, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Reference Rate and Spread	[7],[27],[28]	7%
Principal	[7],[27],[28]	$ 0
Cost	[7],[27],[28]	(44)
Fair value	[7],[27],[28]	$ (44)
Investment, Identifier [Axis]: CQ Fluency, LLC, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[7],[28]	12.45%
Reference Rate and Spread	[7],[28]	7%
Principal	[7],[28]	$ 7,500
Cost	[7],[28]	7,280
Fair value	[7],[28]	$ 7,280
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[8],[16],[42]			11.99%
Reference Rate and Spread	[8],[16],[42]			8.50%
PIK Rate	[8],[16],[42]			0.01%
Principal	[8],[16],[42]			$ 20,112
Cost	[8],[16],[42]			20,066
Fair value	[8],[16],[42]			$ 20,112
Investment, Identifier [Axis]: Camin Cargo Control, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[10],[16]			10.88%
Reference Rate and Spread	[10],[16]			6.50%
Principal	[10],[16]			$ 7,609
Cost	[10],[16]			7,553
Fair value	[10],[16]			$ 7,342
Investment, Identifier [Axis]: Career Team Holdings, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		50,000		50,000
Cost		$ 500		$ 500
Fair value		$ 500		$ 500
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[28]	11.38%
Reference Rate and Spread		6%	[28]	6%	[16]
Principal		$ 100	[28]	$ 0	[16]
Cost		96	[28]	(3)	[16]
Fair value		$ 96	[28]	$ (3)	[16]
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%		12.50%
Principal		$ 2,225		$ 2,250
Cost		2,185		2,196
Fair value		$ 2,185		$ 2,196
Investment, Identifier [Axis]: CaseWorthy, Inc., Common Equity
Schedule of Investments [Line Items]
Units (in shares)		80,000	[7]	80,000	[8]
Cost		$ 80	[7]	$ 80	[8]
Fair value		$ 80	[7]	$ 80	[8]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		6%	[7],[27],[28]	6%	[8],[16]
Principal		$ 0	[7],[27],[28]	$ 0	[8],[16]
Cost		(3)	[7],[27],[28]	(4)	[8],[16]
Fair value		$ (3)	[7],[27],[28]	$ (4)	[8],[16]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.61%	[7],[28]	10.73%	[8],[16]
Reference Rate and Spread		6%	[7],[28]	6%	[8],[16]
Principal		$ 2,581	[7],[28]	$ 2,600	[8],[16]
Cost		2,561	[7],[28]	2,574	[8],[16]
Fair value		$ 2,581	[7],[28]	$ 2,574	[8],[16]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.61%	[7],[28]	10.48%	[8],[16]
Reference Rate and Spread		6%	[7],[28]	5.75%	[8],[16]
Principal		$ 1,985	[7],[28]	$ 1,995	[8],[16]
Cost		1,971	[7],[28]	1,977	[8],[16]
Fair value		$ 1,985	[7],[28]	$ 1,995	[8],[16]
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		3,327		3,327
Cost		$ 1,531		$ 1,531
Fair value		$ 2,760		$ 2,170		1,460
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		9%	[27],[28]	9%	[16]
Principal		$ 0	[27],[28]	$ 0	[16]
Cost		0	[27],[28]	0	[16]
Fair value		$ 0	[27],[28]	$ 0	[16]	0
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.48%	[28]	13.13%	[16]
Reference Rate and Spread		9%	[28]	9%	[16]
Principal		$ 4,394	[28]	$ 3,758	[16]
Cost		4,364	[28]	3,731	[16]
Fair value		$ 4,394	[28]	$ 3,731	[16]	2,216
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		1,087	[30]	1,087	[29]
Cost		$ 2,860	[30]	$ 2,860	[29]
Fair value		$ 7,330	[30]	$ 5,728	[29]	6,030
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		261,786	[30],[38]	261,786	[29],[39]
Cost		$ 443	[30],[38]	$ 443	[29],[39]
Fair value		$ 715	[30],[38]	$ 678	[29],[39]	385
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		6%	[27],[28]	6%	[16]
Principal		$ 0	[27],[28]	$ 0	[16]
Cost		(49)	[27],[28]	0	[16]
Fair value		$ 0	[27],[28]	$ 0	[16]	0
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.49%	[28]	12.13%	[16]
Reference Rate and Spread		8%	[28]	8%	[16]
Principal		$ 3,905	[28]	$ 4,236	[16]
Cost		3,903	[28]	4,228	[16]
Fair value		$ 3,905	[28]	$ 4,236	[16]	4,454
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.60%	[7],[28],[43]	10.72%	[8],[16],[44]
Reference Rate and Spread		7%	[7],[28],[43]	6.25%	[8],[16],[44]
Principal		$ 190	[7],[28],[43]	$ 172	[8],[16],[44]
Cost		175	[7],[28],[43]	162	[8],[16],[44]
Fair value		$ 183	[7],[28],[43]	$ 169	[8],[16],[44]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.66%	[7],[28]	10.71%	[8],[16],[45]
Reference Rate and Spread		7%	[7],[28]	6.25%	[8],[16],[45]
Principal		$ 3,360	[7],[28]	$ 3,591	[8],[16],[45]
Cost		3,317	[7],[28]	3,530	[8],[16],[45]
Fair value		$ 3,224	[7],[28]	$ 3,539	[8],[16],[45]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[7],[28]	12.66%
Reference Rate and Spread	[7],[28]	7%
Principal	[7],[28]	$ 186
Cost	[7],[28]	184
Fair value	[7],[28]	$ 179
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[7],[28]	12.66%
Reference Rate and Spread	[7],[28]	7%
Principal	[7],[28]	$ 450
Cost	[7],[28]	440
Fair value	[7],[28]	$ 432
Investment, Identifier [Axis]: Charps, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		457	[30]	457	[29]
Cost		$ 491	[30]	$ 491	[29]
Fair value		$ 3,920	[30]	$ 3,330	[29]	3,500
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		179	[30]	179	[29]
Cost		$ 1,820	[30]	$ 1,820	[29]
Fair value		$ 1,300	[30]	$ 2,060	[29]	2,560
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		200	[38]	200	[39]
Cost		$ 127	[38]	$ 53	[39]
Fair value		$ 282	[38]	$ 152	[39]	133
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.50%		13.23%	[16]
Reference Rate and Spread	[16]			9%
Principal		$ 2,140		$ 2,620	[16]
Cost		2,140		2,620	[16]
Fair value		$ 2,103		$ 2,620	[16]
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1.1
Schedule of Investments [Line Items]
Total Rate		11.50%
Reference Rate and Spread				9%
Fair value		$ 0		$ 0		0
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		10%
Principal		$ 253		$ 262
Cost		251		260
Fair value		$ 251		$ 260
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		11.50%		13.23%
Reference Rate and Spread				9%
Fair value		$ 2,103		$ 2,620		2,620
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10%		10%
Fair value		$ 251		$ 260		268
Investment, Identifier [Axis]: Clarius BIGS, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[8],[35],[37]			15%
PIK Rate	[8],[35],[37]			15%
Principal		2,694	[7],[34],[36]	$ 2,747	[8],[35],[37]
Cost		2,350	[7],[34],[36]	2,403	[8],[35],[37]
Fair value		$ 16	[7],[34],[36]	$ 19	[8],[35],[37]
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		39	[30]	39	[29]
Cost		$ 1,440	[30]	$ 1,440	[29]
Fair value		$ 4,000	[30]	$ 6,160	[29]
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.69%	[28]	9.75%	[16]
Reference Rate and Spread		6%	[28]	6%	[16]
Principal		$ 1,140	[28]	$ 1,140	[16]
Cost		1,133	[28]	1,127	[16]
Fair value		$ 1,140	[28]	$ 1,140	[16]
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		8%		8%
Principal		$ 4,819		$ 4,819
Cost		4,781		4,754
Fair value		$ 4,819		$ 4,819
Investment, Identifier [Axis]: Cody Pools, Inc., Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		147	[30],[38]	147	[29],[39]
Cost		$ 2,079	[30],[38]	$ 2,079	[29],[39]
Fair value		18,120	[30],[38]	$ 14,550	[29],[39]
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[16]			15.38%
Reference Rate and Spread	[16]			10.50%
Principal		0	[27]	$ 273	[16]
Cost		(2)	[27]	261	[16]
Fair value		$ 0	[27]	273	[16]
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1.1
Schedule of Investments [Line Items]
Total Rate		12.50%
Fair value		$ 0		$ 0
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1.2
Schedule of Investments [Line Items]
Total Rate				15.38%
Reference Rate and Spread				10.50%
Fair value				$ 273		(6)
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%		15.38%	[16]
Reference Rate and Spread	[16]			10.50%
Principal		$ 7,111		$ 6,882	[16]
Cost		7,089		6,786	[16]
Fair value		$ 7,111		6,882	[16]
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		12.50%
Fair value		$ 7,111		$ 0
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2.2
Schedule of Investments [Line Items]
Total Rate				15.38%
Reference Rate and Spread				10.50%
Fair value				$ 6,882		7,187
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Reference Rate and Spread		10.50%
Fair value		$ 0		273
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Reference Rate and Spread		10.50%
Fair value		$ 0		6,882
Investment, Identifier [Axis]: Cody Pools, Inc.,Preferred Member Units
Schedule of Investments [Line Items]
Fair value				$ 14,550		11,910
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)	[29]			4,320
Cost	[29]			$ 1,920
Fair value				2,290	[29]	2,280
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		240
Cost		$ 240
Fair value		$ 600		0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		4,320
Cost		$ 1,920
Fair value		1,920		2,290
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 1
Schedule of Investments [Line Items]
Principal		0	[27]	0
Cost		0	[27]	0
Fair value		$ 0	[27]	$ 0		0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%		12%
Principal		$ 5,513		$ 5,828
Cost		5,448		5,729
Fair value		$ 5,407		5,729		6,007
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		1,863
Cost		$ 1,863
Fair value		$ 1,863		0
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.50%
Principal	[27]	$ 0
Cost	[27]	0
Fair value		$ 0	[27]	0
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%
Principal		$ 4,300
Cost		4,175
Fair value		$ 4,175		$ 0
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.52%	[7],[28],[46]	12.56%	[8],[16],[47]
Reference Rate and Spread		8%	[7],[28],[46]	8%	[8],[16],[47]
Principal		$ 4,167	[7],[28],[46]	$ 4,167	[8],[16],[47]
Cost		4,123	[7],[28],[46]	4,106	[8],[16],[47]
Fair value		$ 4,040	[7],[28],[46]	$ 3,851	[8],[16],[47]
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.52%	[7],[28]	12.56%	[8],[16]
Reference Rate and Spread		8%	[7],[28]	8%	[8],[16]
Principal		$ 15,260	[7],[28]	$ 15,604	[8],[16]
Cost		15,098	[7],[28]	15,374	[8],[16]
Fair value		$ 14,797	[7],[28]	$ 14,421	[8],[16]
Investment, Identifier [Axis]: Construction Supply Investments, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		861,618	[7]	861,618	[8],[29]
Cost		$ 3,335	[7]	$ 3,335	[8],[29]
Fair value		$ 23,135	[7]	$ 21,165	[8],[29]
Investment, Identifier [Axis]: Copper Trail Fund Investments, LP Interests (CTMH, LP)
Schedule of Investments [Line Items]
Units (percentage)		38.80%	[11],[13],[30],[40]	39%	[14],[15],[41]
Cost		$ 693	[11],[13],[30],[40]	$ 713	[14],[15],[41]
Fair value		$ 568	[11],[13],[30],[40]	$ 588	[14],[15],[41]	710
Investment, Identifier [Axis]: DMA Industries, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		1,486		1,486
Cost		$ 1,486		$ 1,486
Fair value		$ 1,920		$ 1,820
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12%		12%
Principal		$ 4,700		$ 5,300
Cost		4,642		5,217
Fair value		$ 4,700		$ 5,300
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class A Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		776,316	[7]	776,316	[8]
Total Rate		8%	[7]	8%	[8]
PIK Rate		8%	[7]	8%	[8]
Cost		$ 776	[7]	$ 776	[8]
Fair value		$ 260	[7]	$ 380	[8]
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class AA Preferred Member Units (non-voting)
Schedule of Investments [Line Items]
Total Rate		10%	[7],[30]	10%	[8],[29]
PIK Rate		10%	[7],[30]	10%	[8],[29]
Cost		$ 1,284	[7],[30]	$ 1,161	[8],[29]
Fair value		1,283	[7],[30]	$ 1,161	[8],[29]
Investment, Identifier [Axis]: DTE Enterprises, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread	[8],[16]			7.50%
Principal	[8],[16]			$ 0
Cost	[8],[16]			(1)
Fair value	[8],[16]			$ (1)
Investment, Identifier [Axis]: DTE Enterprises, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[8],[16]			12.24%
Reference Rate and Spread	[8],[16]			7.50%
Principal	[8],[16]			$ 6,119
Cost	[8],[16]			6,110
Fair value	[8],[16]			$ 5,978
Investment, Identifier [Axis]: Dalton US Inc., Common Stock
Schedule of Investments [Line Items]
Units (in shares)	[8]			14
Cost	[8]			$ 14
Fair value	[8]			$ 14
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt
Schedule of Investments [Line Items]
Cost	[7]	52
Fair value	[7]	$ 60
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8],[16]			11.90%
Reference Rate and Spread	[8],[16]			8%
Principal	[8],[16]			$ 79
Cost	[8],[16]			63
Fair value	[8],[16]			$ 78
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 2
Schedule of Investments [Line Items]
Reference Rate and Spread	[8],[16]			8%
Principal	[8],[16]			$ 0
Cost	[8],[16]			(5)
Fair value	[8],[16]			$ (5)
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[8],[16]			12.56%
Reference Rate and Spread	[8],[16]			8%
Principal	[8],[16]			$ 1,035
Cost	[8],[16]			1,016
Fair value	[8],[16]			$ 1,020
Investment, Identifier [Axis]: Datacom, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		1,000		1,000	[29]
Cost		$ 290		$ 290	[29]
Fair value		$ 10		$ 300	[29]	290
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		7.50%		7.50%
Principal		$ 50		$ 25
Cost		49		25
Fair value		$ 49		$ 25		0
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		7.50%
Principal		$ 928		$ 958
Cost		887		895
Fair value		$ 844		$ 865		852
Investment, Identifier [Axis]: Digital Products Holdings LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		964	[30]	964	[29]
Cost		$ 2,375	[30]	$ 2,375	[29]
Fair value		$ 2,459	[30]	$ 2,459	[29]	2,459
Investment, Identifier [Axis]: Digital Products Holdings LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.38%	[28]	14.13%	[16]
Reference Rate and Spread		10%	[28]	10%	[16]
Principal		$ 3,718	[28]	$ 3,883	[16]
Cost		3,689	[28]	3,878	[16]
Fair value		$ 3,673	[28]	$ 3,878	[16]	4,186
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Preferred Stock
Schedule of Investments [Line Items]
Units (in shares)		2,100	[30]	2,100	[29]
Cost		$ 2,100	[30]	$ 2,100	[29]
Fair value		$ 5,180	[30]	$ 5,558	[29]	4,590
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		14%
Reference Rate and Spread	[16]			11%
Principal		$ 217		$ 0	[16]
Cost		213		(5)	[16]
Fair value		$ 217		$ 0	[16]	(7)
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14%		15.13%	[16]
Reference Rate and Spread	[16]			11%
Principal		$ 5,002		$ 5,352	[16]
Cost		4,974		5,306	[16]
Fair value		$ 5,002		$ 5,352	[16]	0
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Reference Rate and Spread				11%
Fair value				$ 0		4,705
Investment, Identifier [Axis]: Dynamic Communities, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		1,250,000	[7]	1,250,000	[8]
Cost		$ 0	[7]	$ 0	[8]
Fair value		$ 0	[7]	$ 0	[8]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 1
Schedule of Investments [Line Items]
Units (in shares)		125,000	[7]	125,000	[8]
Cost		$ 128	[7]	$ 128	[8]
Fair value		$ 60	[7]	$ 128	[8]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 2
Schedule of Investments [Line Items]
Units (in shares)		2,376,241	[7]	2,376,241	[8]
Cost		$ 0	[7]	$ 0	[8]
Fair value		$ 0	[7]	$ 0	[8]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.45%	[7],[28]	9.18%	[8],[16]
Reference Rate and Spread		5%	[7],[28]	4.50%	[8],[16]
PIK Rate		10.45%	[7],[28]	9.18%	[8],[16]
Principal		$ 2,070	[7],[28]	$ 1,875	[8],[16]
Cost		1,912	[7],[28]	1,717	[8],[16]
Fair value		$ 1,912	[7],[28]	$ 1,717	[8],[16]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.45%	[7],[28]	11.18%	[8],[16]
Reference Rate and Spread		7%	[7],[28]	6.50%	[8],[16]
PIK Rate		12.45%	[7],[28]	11.18%	[8],[16]
Principal		$ 2,113	[7],[28]	$ 1,875	[8],[16]
Cost		1,879	[7],[28]	1,642	[8],[16]
Fair value		$ 1,859	[7],[28]	$ 1,642	[8],[16]
Investment, Identifier [Axis]: EPIC Y-Grade Services, LP, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[10],[16]			10.70%
Reference Rate and Spread	[10],[16]			6%
Principal	[10],[16]			$ 6,840
Cost	[10],[16]			6,777
Fair value	[10],[16]			$ 6,156
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 1
Schedule of Investments [Line Items]
Units (in shares)		19		25
Cost		$ 374		$ 497
Fair value		$ 390		$ 497
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 2
Schedule of Investments [Line Items]
Units (in shares)		61	[38]	61	[39]
Cost		$ 102	[38]	$ 102	[39]
Fair value		$ 109	[38]	$ 102	[39]
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		6%	[27],[28]	6%	[16]
Principal		$ 0	[27],[28]	$ 0	[16]
Cost		0	[27],[28]	(1)	[16]
Fair value		$ 0	[27],[28]	$ (1)	[16]
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%		12%
Principal		$ 1,227		$ 1,227
Cost		1,200		1,192
Fair value		$ 1,200		$ 1,192
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		9%		9%
Principal		$ 412		$ 415
Cost		409		411
Fair value		$ 409		$ 411
Investment, Identifier [Axis]: Emerald Technologies Acquisition Co, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.79%	[9],[28]	10.67%	[10],[16]
Reference Rate and Spread		6.25%	[9],[28]	6.25%	[10],[16]
Principal		$ 2,391	[9],[28]	$ 2,453	[10],[16]
Cost		2,357	[9],[28]	2,411	[10],[16]
Fair value		$ 2,175	[9],[28]	$ 2,328	[10],[16]
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8],[16]			11.68%
Reference Rate and Spread		5.50%	[7],[27],[28]	6.50%	[8],[16]
Principal		$ 0	[7],[27],[28]	$ 41	[8],[16]
Cost		(11)	[7],[27],[28]	27	[8],[16]
Fair value		$ 0	[7],[27],[28]	$ 41	[8],[16]
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.98%	[7],[28]	10.92%	[8],[16]
Reference Rate and Spread		6.50%	[7],[28]	6.50%	[8],[16]
Principal		$ 5,095	[7],[28]	$ 5,159	[8],[16]
Cost		5,023	[7],[28]	5,070	[8],[16]
Fair value		$ 5,095	[7],[28]	$ 5,159	[8],[16]
Investment, Identifier [Axis]: Escalent, Inc., Common Equity
Schedule of Investments [Line Items]
Units (in shares)	[7]	170,998
Cost	[7]	$ 174
Fair value	[7]	$ 190
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread	[7],[27],[28]	8%
Principal	[7],[27],[28]	$ 0
Cost	[7],[27],[28]	(9)
Fair value	[7],[27],[28]	$ (9)
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[28]	13.45%
Reference Rate and Spread	[7],[28]	8%
Principal	[7],[28]	$ 6,924
Cost	[7],[28]	6,742
Fair value	[7],[28]	$ 6,924
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.61%	[7],[28]	10.67%	[8],[16],[39]
Reference Rate and Spread		7%	[7],[28]	7%	[8],[16],[39]
Principal		$ 308	[7],[28]	$ 308	[8],[16],[39]
Cost		306	[7],[28]	305	[8],[16],[39]
Fair value		$ 302	[7],[28]	$ 292	[8],[16],[39]
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.61%	[7],[28]	10.67%	[8],[16],[39]
Reference Rate and Spread		7%	[7],[28]	7%	[8],[16],[39]
Principal		$ 3,681	[7],[28]	$ 3,692	[8],[16],[39]
Cost		3,659	[7],[28]	3,663	[8],[16],[39]
Fair value		$ 3,614	[7],[28]	$ 3,507	[8],[16],[39]
Investment, Identifier [Axis]: Fidelity Government Portfolio Class III Fund
Schedule of Investments [Line Items]
Total Rate		5.25%
Cost	[48]	$ 3,188
Fair value	[48]	$ 3,188
Investment, Identifier [Axis]: First American Treasury Obligations Fund Class Z
Schedule of Investments [Line Items]
Total Rate		5.23%
Cost	[49]	$ 17,656
Fair value	[49]	$ 17,656
Investment, Identifier [Axis]: Flame King Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		2,340	[30]	2,340	[29]
Cost		$ 2,600	[30]	$ 2,600	[29]
Fair value		$ 6,970	[30]	$ 4,400	[29]	2,600
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[16]			10.75%
Reference Rate and Spread		6.50%		6.50%	[16]
Principal	[16]			$ 1,900
Cost	[16]			1,885
Fair value		$ 0		$ 1,900	[16]	1,581
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[16]			13.25%
Reference Rate and Spread		9%		9%	[16]
Principal	[16]			$ 5,300
Cost	[16]			5,175
Fair value		$ 0		$ 5,300	[16]	5,145
Investment, Identifier [Axis]: Flip Electronics LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8],[16]			11.21%
Reference Rate and Spread	[8],[16]			7.50%
Principal	[8],[16]			$ 818
Cost	[8],[16]			818
Fair value	[8],[16]			$ 818
Investment, Identifier [Axis]: Flip Electronics LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[8],[16]			12.19%
Reference Rate and Spread	[8],[16]			7.50%
Principal	[8],[16]			$ 12,327
Cost	[8],[16]			12,055
Fair value	[8],[16]			$ 12,327
Investment, Identifier [Axis]: Freeport Financial Funds, LP Interests (Freeport First Lien Loan Fund III LP)
Schedule of Investments [Line Items]
Units (percentage)		6%	[11],[13],[30],[40]	6%	[14],[15],[29],[41]
Cost		$ 4,160	[11],[13],[30],[40]	$ 6,303	[14],[15],[29],[41]
Fair value		$ 3,705	[11],[13],[30],[40]	5,848	[14],[15],[29],[41]	7,231
Investment, Identifier [Axis]: GFG Group, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)	[30]	56
Cost	[30]	$ 1,225
Fair value		$ 2,870	[30]	$ 1,790		1,750
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		8%		9%
Principal		$ 2,336
Cost		2,304
Fair value		$ 2,336		$ 2,836		3,136
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		8%
Fair value		$ 2,336		$ 2,836
Investment, Identifier [Axis]: GFG Group, LLC., Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)	[29]			56
Cost	[29]			$ 1,225
Fair value	[29]			$ 1,790
Investment, Identifier [Axis]: GFG Group, LLC., Secured Debt
Schedule of Investments [Line Items]
Total Rate				9%
Principal				$ 2,836
Cost				2,779
Fair value				$ 2,836
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		2,896		2,896	[29]
Cost		$ 6,435		$ 6,435	[29]
Fair value		$ 21,890		$ 21,890	[29]	22,750
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.48%		10.12%
Reference Rate and Spread		6%		6%
Principal		$ 1,182		$ 330
Cost		1,173		324
Fair value		$ 1,182		$ 330		0
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.48%		12.12%
Reference Rate and Spread		8%		8%
Principal		$ 19,944		$ 19,944
Cost		19,803		19,753
Fair value		$ 19,944		$ 19,943		19,152
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		2,261		2,261	[29]
Cost		$ 4,423		$ 4,423	[29]
Fair value		$ 24,180		$ 12,720	[29]	12,430
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		7.50%	[27],[28],[32]	8.50%	[16]
Principal		$ 0	[27],[28],[32]	$ 0	[16]
Cost		0	[27],[28],[32]	0	[16]
Fair value		$ 0	[27],[28],[32]	$ 0	[16]	0
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.50%	[28],[32]	11.50%	[16]
Reference Rate and Spread		7.50%	[28],[32]	8.50%	[16]
Principal		$ 13,520	[28],[32]	$ 16,020	[16]
Cost		13,336	[28],[32]	15,747	[16]
Fair value		13,520	[28],[32]	$ 16,020	[16]	0
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Reference Rate and Spread				7.50%
Fair value				$ 0		5,400
Investment, Identifier [Axis]: Garyline, LLC, Common Equity
Schedule of Investments [Line Items]
Cost	[7]	210
Fair value	[7]	$ 210
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread	[7],[27],[28]	6.75%
Principal	[7],[27],[28]	$ 0
Cost	[7],[27],[28]	(76)
Fair value	[7],[27],[28]	$ (76)
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[28]	12.22%
Reference Rate and Spread	[7],[28]	6.75%
Principal	[7],[28]	$ 9,664
Cost	[7],[28]	9,384
Fair value	[7],[28]	$ 9,384
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		920		920
Cost		$ 920		$ 920
Fair value		$ 0		$ 0		0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		15,930		15,930
Cost		$ 1,400		$ 1,400
Fair value		$ 620		$ 950		0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		9.50%	[27],[28]	9.50%	[16]
Principal		$ 0	[27],[28]	$ 0	[16]
Cost		0	[27],[28]	0	[16]
Fair value		$ 0	[27],[28]	$ 0	[16]	64
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%		12.50%
Principal		$ 600		$ 600
Cost		600		600
Fair value		$ 571		571
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		12.50%
Fair value		$ 571		$ 571
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2.2
Schedule of Investments [Line Items]
PIK Rate				6.25%
Fair value				$ 0		2,429
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate				12.50%
Fair value				$ 571		0
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		14.34%	[7],[28],[36]	14.34%	[8],[16]
Reference Rate and Spread		9.50%	[7],[28],[36]	9.50%	[8],[16]
PIK Rate		14.34%	[7],[28],[36]	2%	[8],[16]
Principal		$ 205	[7],[28],[36]	$ 180	[8],[16]
Cost		205	[7],[28],[36]	179	[8],[16]
Fair value		$ 186	[7],[28],[36]	$ 175	[8],[16]
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.34%	[7],[28],[36]	14.34%	[8],[16]
Reference Rate and Spread		9.50%	[7],[28],[36]	9.50%	[8],[16]
PIK Rate		14.34%	[7],[28],[36]	2%	[8],[16]
Principal		$ 2,036	[7],[28],[36]	$ 1,780	[8],[16]
Cost		2,036	[7],[28],[36]	1,772	[8],[16]
Fair value		$ 1,849	[7],[28],[36]	$ 1,731	[8],[16]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		6.50%	[7],[27],[28]	6.50%	[8],[16]
Principal		$ 0	[7],[27],[28]	$ 0	[8],[16]
Cost		(14)	[7],[27],[28]	(18)	[8],[16]
Fair value		$ (14)	[7],[27],[28]	$ (18)	[8],[16]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[28]	11.86%
Reference Rate and Spread		6.50%	[7],[28]	6.50%	[8],[16]
Principal		$ 1,995	[7],[28]	$ 0	[8],[16]
Cost		1,962	[7],[28]	(18)	[8],[16]
Fair value		$ 1,995	[7],[28]	$ (18)	[8],[16]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.86%	[7],[28]	10.62%	[8],[16]
Reference Rate and Spread		6.50%	[7],[28]	6.50%	[8],[16]
Principal		$ 4,925	[7],[28]	$ 4,975	[8],[16]
Cost		4,854	[7],[28]	4,884	[8],[16]
Fair value		4,925	[7],[28]	4,975	[8],[16]
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 3, L.P.)
Schedule of Investments [Line Items]
Fair value		$ 4,225		$ 4,331		4,712
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 MH, L.P.)
Schedule of Investments [Line Items]
Units (percentage)		49.30%	[11],[13],[30],[40]	49.30%	[14],[15],[41]
Cost		$ 3,345	[11],[13],[30],[40]	$ 3,895	[14],[15],[41]
Fair value		$ 6,050	[11],[13],[30],[40]	$ 7,552	[14],[15],[41]	3,971
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (HPEP 3, L.P.)
Schedule of Investments [Line Items]
Units (percentage)		8.20%	[11],[13],[40]	8.20%	[14],[15],[41]
Cost		$ 2,296	[11],[13],[40]	$ 2,558	[14],[15],[41]
Fair value		$ 4,225	[11],[13],[40]	$ 4,331	[14],[15],[41]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		56		56	[29]
Cost		$ 713		$ 713	[29]
Fair value		$ 4,370		$ 4,370	[29]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		56	[38]	56	[39]
Cost		$ 38	[38]	$ 38	[39]
Fair value		$ 230	[38]	$ 230	[39]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.65%	[28]	10.13%	[16]
Reference Rate and Spread		6%	[28]	6%	[16]
Principal		$ 494	[28]	$ 796	[16]
Cost		492	[28]	796	[16]
Fair value		$ 494	[28]	$ 796	[16]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%		9%
Principal		$ 9,744		$ 8,200
Cost		9,697		8,147
Fair value		$ 9,744		$ 8,200
Investment, Identifier [Axis]: Hybrid Promotions, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.91%	[7],[28]	12.07%	[8]
Reference Rate and Spread		8.25%	[7],[28]	8.25%	[8]
PIK Rate	[7],[28]	2%
Principal		$ 7,964	[7],[28]	$ 7,875	[8]
Cost		7,813	[7],[28]	7,762	[8]
Fair value		$ 7,313	[7],[28]	6,826	[8]
Investment, Identifier [Axis]: IG Investor, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		3,600
Cost		$ 3,600
Fair value		3,600		0
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Principal	[27]	0
Cost	[27]	(27)
Fair value		$ (27)	[27]	0
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%
Principal		$ 9,316
Cost		9,069
Fair value		$ 9,069		$ 0
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[10],[16],[50]			10.17%
Reference Rate and Spread		5.75%	[9],[27],[28]	5.75%	[10],[16],[50]
Principal		$ 0	[9],[27],[28]	$ 465	[10],[16],[50]
Cost		(13)	[9],[27],[28]	447	[10],[16],[50]
Fair value		$ 0	[9],[27],[28]	$ 465	[10],[16],[50]
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.96%	[9],[28]	10.17%	[10],[16]
Reference Rate and Spread		5.50%	[9],[28]	5.75%	[10],[16]
Principal		$ 6,266	[9],[28]	$ 8,291	[10],[16]
Cost		6,200	[9],[28]	8,186	[10],[16]
Fair value		$ 6,266	[9],[28]	$ 8,291	[10],[16]
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[9],[28]	10.96%
Reference Rate and Spread	[9],[28]	5.50%
Principal	[9],[28]	$ 1,942
Cost	[9],[28]	1,921
Fair value	[9],[28]	$ 1,942
Investment, Identifier [Axis]: INW Manufacturing, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.36%	[9],[28]	10.48%	[10],[16]
Reference Rate and Spread		5.75%	[9],[28]	5.75%	[10],[16]
Principal		$ 6,656	[9],[28]	$ 6,984	[10],[16]
Cost		6,537	[9],[28]	6,825	[10],[16]
Fair value		$ 5,325	[9],[28]	$ 5,972	[10],[16]
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[28]	16.59%
Reference Rate and Spread	[28]	9%
PIK Rate	[28]	2%
Principal	[28]	$ 207
Cost	[28]	201
Fair value	[28]	$ 201
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[28]	16.59%
Reference Rate and Spread	[28]	9%
PIK Rate	[28]	2%
Principal	[28]	$ 178
Cost	[28]	174
Fair value	[28]	$ 174
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[28]	15.59%
Reference Rate and Spread	[28]	8%
PIK Rate	[28]	2%
Principal	[28]	$ 1,084
Cost	[28]	842
Fair value	[28]	$ 842
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[28]	17.59%
Reference Rate and Spread	[28]	10%
PIK Rate	[28]	2%
Principal	[28]	$ 1,091
Cost	[28]	848
Fair value	[28]	$ 848
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Warrants
Schedule of Investments [Line Items]
Units (in shares)	[25]	48,327
Cost	[25]	$ 523
Fair value	[25]	$ 523
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Common Equity
Schedule of Investments [Line Items]
Units (in shares)	[7]	422
Cost	[7]	$ 580
Fair value	[7]	$ 550
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[28],[51]	12.41%
Reference Rate and Spread	[7],[28],[51]	7%
Principal	[7],[28],[51]	$ 791
Cost	[7],[28],[51]	791
Fair value	[7],[28],[51]	$ 786
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[28]	12.45%
Reference Rate and Spread	[7],[28]	7%
Principal	[7],[28]	$ 10,384
Cost	[7],[28]	10,068
Fair value	[7],[28]	$ 10,318
Investment, Identifier [Axis]: Implus Footcare, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14.25%	[7],[28]	13.98%	[8],[16]
Reference Rate and Spread		7.75%	[7],[28]	7.75%	[8],[16]
PIK Rate		1%	[7],[28]	1.50%	[8],[16]
Principal		$ 17,012	[7],[28]	$ 16,921	[8],[16]
Cost		17,010	[7],[28]	16,914	[8],[16]
Fair value		$ 15,816	[7],[28]	15,961	[8],[16]
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)	[7]	6,436,566
Cost	[7]	$ 6,540
Fair value		$ 6,320	[7]	$ 0
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)	[8]			1,191,667
Cost	[8]			$ 1,192
Fair value	[8]			$ 0
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Preferred Stock (non-voting) 1
Schedule of Investments [Line Items]
Total Rate	[8]			6%
PIK Rate	[8]			6%
Cost	[8]			$ 2,470
Fair value	[8]			0
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Preferred Stock (non-voting) 2
Schedule of Investments [Line Items]
Cost	[8]			0
Fair value	[8]			$ 0
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8]			14.42%
Reference Rate and Spread	[8]			10%
PIK Rate	[8]			14.42%
Principal	[8]			$ 481
Cost	[8]			459
Fair value	[8]			$ 459
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[8],[35]			6%
PIK Rate	[8],[35]			6%
Principal	[8],[35]			$ 10,902
Cost	[8],[35]			10,443
Fair value	[8],[35]			$ 4,515
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Warrants
Schedule of Investments [Line Items]
Units (in shares)	[8]			185,757
Cost	[8]			$ 0
Fair value	[8]			$ 0
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		2,100	[7],[38]	2,100	[8],[39]
Cost		$ 2,100	[7],[38]	$ 2,100	[8],[39]
Fair value		$ 1,610	[7],[38]	$ 1,400	[8],[39]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		336	[7],[30],[38]	336	[8],[29],[39]
Total Rate		10%	[7],[30],[38]	10%	[8],[29],[39]
PIK Rate		10%	[7],[30],[38]	10%	[8],[29],[39]
Cost		$ 321	[7],[30],[38]	$ 301	[8],[29],[39]
Fair value		$ 415	[7],[30],[38]	$ 338	[8],[29],[39]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		187	[7],[30],[38]	187	[8],[29],[39]
Total Rate		20%	[7],[30],[38]	20%	[8],[29],[39]
PIK Rate		20%	[7],[30],[38]	20%	[8],[29],[39]
Cost		$ 240	[7],[30],[38]	$ 215	[8],[29],[39]
Fair value		$ 279	[7],[30],[38]	$ 217	[8],[29],[39]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.22%	[7],[28],[52]	11.50%	[8],[16]
Reference Rate and Spread		6.75%	[7],[28],[52]	6.75%	[8],[16]
Principal		$ 752	[7],[28],[52]	$ 387	[8],[16]
Cost		734	[7],[28],[52]	359	[8],[16]
Fair value		$ 752	[7],[28],[52]	$ 387	[8],[16]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.22%	[7],[28]	11.50%	[8],[16]
Reference Rate and Spread		6.75%	[7],[28]	6.75%	[8],[16]
Principal		$ 11,436	[7],[28]	$ 10,871	[8],[16]
Cost		11,330	[7],[28]	10,738	[8],[16]
Fair value		$ 11,436	[7],[28]	$ 10,871	[8],[16]
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		20,000
Cost		$ 1,000
Fair value		$ 1,000
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%
Principal		$ 4,388
Cost		4,314
Fair value		$ 4,314
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[28]	11.21%
Reference Rate and Spread		5.75%	[7],[28]	5.50%	[8],[16]
Principal		$ 1,881	[7],[28]	$ 0	[8],[16]
Cost		1,829	[7],[28]	(48)	[8],[16]
Fair value		$ 1,881	[7],[28]	$ (48)	[8],[16]
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.21%	[7],[28]	10.23%	[8],[16]
Reference Rate and Spread		5.75%	[7],[28]	5.50%	[8],[16]
Principal		$ 9,690	[7],[28]	$ 10,742	[8],[16]
Cost		9,579	[7],[28]	10,576	[8],[16]
Fair value		$ 9,690	[7],[28]	10,742	[8],[16]
Investment, Identifier [Axis]: Insight Borrower Corporation, Common Equity
Schedule of Investments [Line Items]
Units (in shares)	[7]	47,847
Cost	[7]	$ 239
Fair value	[7]	$ 239
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread	[7],[27],[28]	6.25%
Principal	[7],[27],[28]	$ 0
Cost	[7],[27],[28]	(40)
Fair value	[7],[27],[28]	$ (40)
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Reference Rate and Spread	[7],[27],[28]	6.25%
Principal	[7],[27],[28]	$ 0
Cost	[7],[27],[28]	(33)
Fair value	[7],[27],[28]	$ (33)
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[7],[28]	11.65%
Reference Rate and Spread	[7],[28]	6.25%
Principal	[7],[28]	$ 8,373
Cost	[7],[28]	8,143
Fair value	[7],[28]	$ 8,287
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)	[7]	101,719
Cost	[7]	$ 322
Fair value	[7]	$ 190
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[28],[53]	13.53%
Reference Rate and Spread	[7],[28],[53]	8%
Principal	[7],[28],[53]	$ 676
Cost	[7],[28],[53]	659
Fair value	[7],[28],[53]	$ 664
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[28]	13.55%
Reference Rate and Spread	[7],[28]	8%
Principal	[7],[28]	$ 6,256
Cost	[7],[28]	6,115
Fair value	[7],[28]	$ 6,144
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[7],[28]	13.55%
Reference Rate and Spread	[7],[28]	8%
Principal	[7],[28]	$ 1,260
Cost	[7],[28]	1,231
Fair value	[7],[28]	$ 1,237
Investment, Identifier [Axis]: Integral Energy Services, Common Stock
Schedule of Investments [Line Items]
Units (in shares)	[7]	11,647
Cost	[7]	$ 1,584
Fair value		$ 190	[7]	1,490
Investment, Identifier [Axis]: Integral Energy Services, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)	[7]	3,725
Total Rate	[7]	10%
PIK Rate	[7]	10%
Cost	[7]	$ 265
Fair value		$ 350	[7]	0
Investment, Identifier [Axis]: Integral Energy Services, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7],[28]	13.16%
Reference Rate and Spread	[7],[28]	7.50%
Principal	[7],[28]	$ 16,925
Cost	[7],[28]	16,737
Fair value		$ 16,232	[7],[28]	$ 18,425
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		2,143	[7]	2,143	[8]
Cost		$ 0	[7]	$ 0	[8]
Fair value		$ 0	[7]	$ 0	[8]
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.48%	[7],[36],[54]	14.22%	[8],[55]
Reference Rate and Spread		10%	[7],[36],[54]	10%	[8],[55]
Principal		$ 1,835	[7],[36],[54]	$ 1,682	[8],[55]
Cost		1,835	[7],[36],[54]	1,682	[8],[55]
Fair value		$ 1,781	[7],[36],[54]	$ 1,682	[8],[55]
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.46%	[7],[34],[36]	12.07%	[8],[16],[35]
Reference Rate and Spread		7%	[7],[34],[36]	7%	[8],[16],[35]
PIK Rate		12.46%	[7],[34],[36]	1%	[8],[16],[35]
Principal		$ 7,334	[7],[34],[36]	$ 7,334	[8],[16],[35]
Cost		7,254	[7],[34],[36]	7,254	[8],[16],[35]
Fair value		$ 433	[7],[34],[36]	$ 1,085	[8],[16],[35]
Investment, Identifier [Axis]: Intermedia Holdings, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.47%	[9],[28]	10.38%	[10],[16]
Reference Rate and Spread		6%	[9],[28]	6%	[10],[16]
Principal		$ 5,544	[9],[28]	$ 5,621	[10],[16]
Cost		5,539	[9],[28]	5,613	[10],[16]
Fair value		$ 5,370	[9],[28]	$ 4,342	[10],[16]
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%	[7],[28]	10.14%	[8],[16]
Reference Rate and Spread		6.50%	[7],[28]	6.50%	[8],[16]
Principal		$ 519	[7],[28]	$ 622	[8],[16]
Cost		516	[7],[28]	618	[8],[16]
Fair value		$ 509	[7],[28]	$ 622	[8],[16]
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%	[7],[28]	10.17%	[8],[16]
Reference Rate and Spread		6.50%	[7],[28]	6.50%	[8],[16]
Principal		$ 16,812	[7],[28]	$ 17,148	[8],[16]
Cost		16,751	[7],[28]	17,050	[8],[16]
Fair value		$ 16,515	[7],[28]	$ 17,148	[8],[16]
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		50,753		44,944
Cost		$ 689		$ 449
Fair value		$ 670		$ 449
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.50%		12.50%
Principal		$ 1,128		$ 1,133
Cost		1,108		1,108
Fair value		$ 1,108		$ 1,108
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%		12.50%
Principal		$ 735		$ 788
Cost		722		771
Fair value		$ 722		$ 771
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.50%		12.50%
Principal		$ 2,236		$ 2,236
Cost		2,236		2,236
Fair value		$ 2,236		$ 2,236
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		13.50%		12.50%
Principal		$ 4,906		$ 4,928
Cost		4,815		4,813
Fair value		$ 4,815		$ 4,813
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate		13.50%
Principal		$ 2,641
Cost		2,525
Fair value		$ 2,525
Investment, Identifier [Axis]: Isagenix International, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)	[9]	186,322
Cost	[9]	$ 0
Fair value	[9]	$ 0
Investment, Identifier [Axis]: Isagenix International, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.04%	[9],[28]	9.93%	[10],[16],[35]
Reference Rate and Spread		5.50%	[9],[28]	7.75%	[10],[16],[35]
PIK Rate	[9],[28]	8.54%
Principal		$ 2,615	[9],[28]	$ 5,053	[10],[16],[35]
Cost		2,374	[9],[28]	5,034	[10],[16],[35]
Fair value		$ 2,301	[9],[28]	$ 1,537	[10],[16],[35]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		140,351	[7]	140,351	[8]
Cost		$ 140	[7]	$ 140	[8]
Fair value		$ 140	[7]	$ 240	[8]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[28],[56]	11.64%
Reference Rate and Spread		6%	[7],[28],[56]	6%	[8],[16]
Principal		$ 261	[7],[28],[56]	$ 0	[8],[16]
Cost		253	[7],[28],[56]	(11)	[8],[16]
Fair value		$ 261	[7],[28],[56]	$ (11)	[8],[16]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.61%	[7],[28]	10.73%	[8],[16]
Reference Rate and Spread		6%	[7],[28]	6%	[8],[16]
Principal		$ 3,000	[7],[28]	$ 3,059	[8],[16]
Cost		2,963	[7],[28]	3,010	[8],[16]
Fair value		$ 3,000	[7],[28]	$ 3,059	[8],[16]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		5,653,333	[7]	5,653,333	[8],[29]
Total Rate	[8],[29]			12%
PIK Rate	[8],[29]			12%
Cost		$ 216	[7]	$ 242	[8],[29]
Fair value		$ 2,190	[7]	$ 1,247	[8],[29]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.46%	[7]	12.23%	[8],[16]
Reference Rate and Spread		7%	[7]	7.50%	[8],[16]
Principal		$ 1,675	[7]	$ 1,000	[8],[16]
Cost		1,649	[7]	965	[8],[16]
Fair value		$ 1,675	[7]	$ 1,000	[8],[16]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.46%	[7]	12.23%	[8],[16]
Reference Rate and Spread		7%	[7]	7.50%	[8],[16]
Principal		$ 3,948	[7]	$ 4,126	[8],[16]
Cost		3,948	[7]	4,126	[8],[16]
Fair value		$ 3,948	[7]	$ 4,126	[8],[16]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		392,514	[9]	392,514	[10]
Cost		$ 3,678	[9]	$ 3,678	[10]
Fair value		$ 0	[9]	$ 0	[10]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		23.63%	[9],[28],[34]	18%	[10]
Reference Rate and Spread	[9],[28],[34]	18%
PIK Rate	[9],[28],[34]	23.63%
Principal		$ 2,048	[9],[28],[34]	$ 1,935	[10]
Cost		2,048	[9],[28],[34]	1,935	[10]
Fair value		$ 1,747	[9],[28],[34]	$ 1,935	[10]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		21.63%	[9],[28],[34]	19.75%	[10],[35]
Reference Rate and Spread	[9],[28],[34]	16%
PIK Rate		21.63%	[9],[28],[34]	19.75%	[10],[35]
Principal		$ 1,708	[9],[28],[34]	$ 3,351	[10],[35]
Cost		1,701	[9],[28],[34]	3,325	[10],[35]
Fair value		$ 121	[9],[28],[34]	$ 418	[10],[35]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[9],[28],[34]	21.63%
Reference Rate and Spread	[9],[28],[34]	16%
PIK Rate	[9],[28],[34]	21.63%
Principal	[9],[28],[34]	$ 1,643
Cost	[9],[28],[34]	1,635
Fair value	[9],[28],[34]	$ 117
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		368		350	[29]
Cost		$ 404		$ 350	[29]
Fair value		1,070		$ 620	[29]
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread	[16]			11.50%
Principal		0	[27]	$ 0	[16]
Cost		(4)	[27]	(3)	[16]
Fair value		$ 0	[27]	$ 0	[16]
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15%		15.63%	[16]
Reference Rate and Spread	[16]			11.50%
Principal		$ 2,690		$ 1,111	[16]
Cost		2,645		1,093	[16]
Fair value		$ 2,690		$ 1,111	[16]
Investment, Identifier [Axis]: JorVet Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		11,934	[30]	11,934	[29]
Cost		$ 1,193	[30]	$ 1,193	[29]
Fair value		$ 1,193	[30]	$ 1,193	[29]
Investment, Identifier [Axis]: JorVet Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12%		12%
Principal		$ 2,850		$ 2,850
Cost		2,814		2,802
Fair value		$ 2,814		$ 2,802
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		14.75%	[7],[28]	12%	[8],[16]
Reference Rate and Spread		9.25%	[7],[28]	7.25%	[8],[16]
Principal		$ 1,292	[7],[28]	$ 1,330	[8],[16]
Cost		1,235	[7],[28]	1,250	[8],[16]
Fair value		$ 1,180	[7],[28]	$ 1,244	[8],[16]
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.75%	[7],[28]	12%	[8],[16]
Reference Rate and Spread		9.25%	[7],[28]	7.25%	[8],[16]
Principal		$ 9,310	[7],[28]	$ 9,381	[8],[16]
Cost		9,205	[7],[28]	9,238	[8],[16]
Fair value		$ 8,475	[7],[28]	$ 8,778	[8],[16]
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)		200	[38]	200	[29],[39]
Cost		$ 248	[38]	$ 248	[29],[39]
Fair value		$ 683	[38]	$ 713	[29],[39]	615
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		145		145
Cost		$ 3,060		$ 3,060
Fair value		$ 2,420		$ 1,800		3,080
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%		11.50%
Principal		$ 4,950		$ 5,104
Cost		4,933		5,075
Fair value		$ 4,933		$ 5,093		5,040
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9%		9%
Principal		$ 960		$ 970
Cost		951		961
Fair value		$ 951		$ 961		970
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.71%	[7],[28]	11.21%	[8],[16]
Reference Rate and Spread		7.25%	[7],[28]	7.25%	[8],[16]
Principal		$ 7,960	[7],[28]	$ 8,003	[8],[16]
Cost		7,933	[7],[28]	7,987	[8],[16]
Fair value		$ 7,960	[7],[28]	$ 7,945	[8],[16]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.71%	[7],[28]	11.67%	[8],[16]
Reference Rate and Spread		7.25%	[7],[28]	7.25%	[8],[16]
Principal		$ 5,246	[7],[28]	$ 6,164	[8],[16]
Cost		5,228	[7],[28]	6,148	[8],[16]
Fair value		$ 5,246	[7],[28]	$ 6,119	[8],[16]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.71%	[7],[28]	11.67%	[8],[16]
Reference Rate and Spread		7.25%	[7],[28]	7.25%	[8],[16]
Principal		$ 0	[7],[28]	$ 8,884	[8],[16]
Cost		0	[7],[28]	8,809	[8],[16]
Fair value		$ 0	[7],[28]	$ 8,820	[8],[16]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[7],[28]	12.71%
Reference Rate and Spread	[7],[28]	7.25%
Principal	[7],[28]	$ 871
Cost	[7],[28]	868
Fair value	[7],[28]	$ 871
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 5
Schedule of Investments [Line Items]
Total Rate	[7],[28]	12.71%
Reference Rate and Spread	[7],[28]	7.25%
Principal	[7],[28]	$ 8,822
Cost	[7],[28]	8,781
Fair value	[7],[28]	$ 8,822
Investment, Identifier [Axis]: LLFlex, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.54%	[7],[28]	12.74%	[8],[16]
Reference Rate and Spread		9%	[7],[28]	9%	[8],[16]
PIK Rate	[7],[28]	1%
Principal		$ 4,920	[7],[28]	$ 4,938	[8],[16]
Cost		4,861	[7],[28]	4,856	[8],[16]
Fair value		$ 4,417	[7],[28]	$ 4,833	[8],[16]
Investment, Identifier [Axis]: Lightbox Holdings, L.P., Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.62%	[9]	9.73%	[10]
Reference Rate and Spread		5%	[9]	5%	[10]
Principal		$ 5,765	[9]	$ 5,826	[10]
Cost		5,736	[9]	5,783	[10]
Fair value		$ 5,592	[9]	$ 5,622	[10]
Investment, Identifier [Axis]: Logix Acquisition Company, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.25%	[7],[28]	10.13%	[8],[16]
Reference Rate and Spread		4.75%	[7],[28]	5.75%	[8],[16]
Principal		$ 11,552	[7],[28]	$ 9,506	[8],[16]
Cost		11,285	[7],[28]	9,476	[8],[16]
Fair value		$ 9,069	[7],[28]	$ 7,843	[8],[16]
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.46%	[9],[28]	10.42%	[10],[16]
Reference Rate and Spread		6%	[9],[28]	6%	[10],[16]
Principal		$ 2,803	[9],[28]	$ 8,359	[10],[16]
Cost		2,771	[9],[28]	8,223	[10],[16]
Fair value		$ 2,803	[9],[28]	$ 8,359	[10],[16]
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.46%	[9],[28]	10.42%	[10],[16]
Reference Rate and Spread		6%	[9],[28]	6%	[10],[16]
Principal		$ 3,925	[9],[28]	$ 7,876	[10],[16]
Cost		3,880	[9],[28]	7,783	[10],[16]
Fair value		$ 3,925	[9],[28]	$ 7,876	[10],[16]
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[9],[28]	11.46%
Reference Rate and Spread	[9],[28]	6%
Principal	[9],[28]	$ 3,464
Cost	[9],[28]	3,424
Fair value	[9],[28]	$ 3,464
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[9],[28]	11.46%
Reference Rate and Spread	[9],[28]	6%
Principal	[9],[28]	$ 7,796
Cost	[9],[28]	7,725
Fair value	[9],[28]	$ 7,796
Investment, Identifier [Axis]: MH Corbin Holding LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		16,500		16,500
Cost		$ 1,100		$ 1,100
Fair value		$ 80		$ 0		0
Investment, Identifier [Axis]: MH Corbin Holding LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		1,000		1,000
Cost		$ 1,500		$ 1,500
Fair value		$ 0		$ 0		0
Investment, Identifier [Axis]: MH Corbin Holding LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%	[36]	13%
Principal		$ 1,350	[36]	$ 1,539
Cost		1,350	[36]	1,539
Fair value		$ 1,256	[36]	$ 1,137		1,484
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8],[16],[57]			11.79%
Reference Rate and Spread		6.75%	[7],[27],[28]	7.25%	[8],[16],[57]
Principal		$ 0	[7],[27],[28]	$ 3,448	[8],[16],[57]
Cost		(36)	[7],[27],[28]	3,395	[8],[16],[57]
Fair value		$ 0	[7],[27],[28]	$ 3,426	[8],[16],[57]
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.28%	[7],[28]	11.09%	[8],[16]
Reference Rate and Spread		6.75%	[7],[28]	7.25%	[8],[16]
Principal		$ 16,721	[7],[28]	$ 17,070	[8],[16]
Cost		16,568	[7],[28]	16,845	[8],[16]
Fair value		16,721	[7],[28]	$ 16,959	[8],[16]
Investment, Identifier [Axis]: Market Force Information, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)				185,980
Cost				$ 4,160
Fair value		$ 0		$ 0		0
Investment, Identifier [Axis]: Market Force Information, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[35]			12%
Reference Rate and Spread		11%
PIK Rate	[35]			12%
Principal	[35]			$ 6,520
Cost	[35]			6,463
Fair value		$ 0		$ 403	[35]	2,234
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)				112,865
Cost				$ 113
Fair value				$ 113
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)	[29]			434,331
Total Rate	[29]			8%
PIK Rate	[29]			8%
Cost	[29]			$ 441
Fair value	[29]			441
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Principal				0
Cost				(1)
Fair value				$ (1)
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				12.75%
Principal				$ 1,748
Cost				1,697
Fair value				$ 1,697
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		112,865
Cost		$ 113
Fair value		$ 110
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)	[30]	434,331
Total Rate	[30]	8%
PIK Rate	[30]	8%
Cost	[30]	$ 443
Fair value	[30]	443
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Principal	[27]	0
Cost	[27]	0
Fair value	[27]	$ 0
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.75%
Principal		$ 1,748
Cost		1,707
Fair value		$ 1,707
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		6.25%	[7],[27],[28]	6.25%	[8],[16]
Principal		$ 0	[7],[27],[28]	$ 0	[8],[16]
Cost		(6)	[7],[27],[28]	(7)	[8],[16]
Fair value		$ (6)	[7],[27],[28]	$ (7)	[8],[16]
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.46%	[7],[28]	9.86%	[8],[16]
Reference Rate and Spread		6%	[7],[28]	6.25%	[8],[16]
Principal		$ 2,671	[7],[28]	$ 3,142	[8],[16]
Cost		2,632	[7],[28]	3,085	[8],[16]
Fair value		$ 2,671	[7],[28]	$ 3,034	[8],[16]
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.52%	[7],[28]	10.66%	[8],[16]
Reference Rate and Spread		7%	[7],[28]	6.25%	[8],[16]
Principal		$ 18,152	[7],[28]	$ 18,769	[8],[16]
Cost		17,863	[7],[28]	18,559	[8],[16]
Fair value		$ 17,524	[7],[28]	$ 18,338	[8],[16]
Investment, Identifier [Axis]: Mini Melts of America, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)	[7]	300,000
Cost	[7]	$ 300
Fair value	[7]	$ 300
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread	[7],[27],[28]	6.25%
Principal	[7],[27],[28]	$ 0
Cost	[7],[27],[28]	(28)
Fair value	[7],[27],[28]	$ (28)
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Reference Rate and Spread	[7],[27],[28]	6.25%
Principal	[7],[27],[28]	$ 0
Cost	[7],[27],[28]	(10)
Fair value	[7],[27],[28]	$ (10)
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[7],[28]	10.64%
Reference Rate and Spread	[7],[28]	5.25%
Principal	[7],[28]	$ 3,225
Cost	[7],[28]	3,149
Fair value	[7],[28]	$ 3,149
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[7],[28]	12.64%
Reference Rate and Spread	[7],[28]	7.25%
Principal	[7],[28]	$ 3,225
Cost	[7],[28]	3,146
Fair value	[7],[28]	$ 3,146
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		12,798,820	[7],[11],[12]	12,798,820	[8],[14],[17]
Cost		$ 256	[7],[11],[12]	$ 256	[8],[14],[17]
Fair value		$ 197	[7],[11],[12]	$ 256	[8],[14],[17]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[11],[12]	14%
Reference Rate and Spread	[8],[14],[16],[17]			7%
PIK Rate	[7],[11],[12]	4%
Principal		$ 1,120	[7],[11],[12]	$ 0	[8],[14],[16],[17]
Cost		1,106	[7],[11],[12]	(19)	[8],[14],[16],[17]
Fair value		$ 1,133	[7],[11],[12]	$ (19)	[8],[14],[16],[17]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14%	[7],[11],[12]	11.73%	[8],[14],[16],[17]
Reference Rate and Spread	[8],[14],[16],[17]			7%
PIK Rate	[7],[11],[12]	4%
Principal		$ 2,912	[7],[11],[12]	$ 2,882	[8],[14],[16],[17]
Cost		2,870	[7],[11],[12]	2,828	[8],[14],[16],[17]
Fair value		$ 3,184	[7],[11],[12]	$ 3,139	[8],[14],[16],[17]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		14%	[7],[11],[12]	11.73%	[8],[14],[16],[17]
Reference Rate and Spread	[8],[14],[16],[17]			7%
PIK Rate	[7],[11],[12]	4%
Principal		$ 4,957	[7],[11],[12]	$ 4,906	[8],[14],[16],[17]
Cost		4,890	[7],[11],[12]	4,820	[8],[14],[16],[17]
Fair value		$ 4,957	[7],[11],[12]	$ 4,906	[8],[14],[16],[17]
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		1,468	[30]	1,468	[29]
Cost		$ 680	[30]	$ 680	[29]
Fair value		6,598	[30]	5,708	[29]	2,210
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Principal		0	[27]	0
Cost		0	[27]	0
Fair value		$ 0	[27]	$ 0		0
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		10%
Principal		$ 1,436		$ 1,436
Cost		1,436		1,436
Fair value		$ 1,436		$ 1,436		1,595
Investment, Identifier [Axis]: NTM Acquisition Corp., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[10],[16]			9.50%
Reference Rate and Spread	[10],[16]			6.25%
PIK Rate	[10],[16]			1%
Principal	[10],[16]			$ 4,036
Cost	[10],[16]			4,034
Fair value	[10],[16]			$ 3,915
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8],[16],[58]			10.85%
Reference Rate and Spread	[8],[16],[58]			8%
Principal	[8],[16],[58]			$ 1,570
Cost	[8],[16],[58]			1,519
Fair value	[8],[16],[58]			$ 1,482
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[8],[16]			12.56%
Reference Rate and Spread	[8],[16]			8%
Principal	[8],[16]			$ 20,786
Cost	[8],[16]			20,476
Fair value	[8],[16]			$ 19,620
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[8]			20%
PIK Rate	[8]			20%
Principal	[8]			$ 3,226
Cost	[8]			3,065
Fair value	[8]			$ 3,065
Investment, Identifier [Axis]: NexRev LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		25,786,046	[30]	25,786,046	[29]
Cost		$ 2,053	[30]	$ 2,053	[29]
Fair value		$ 1,590	[30]	280	[29]	670
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10%
Principal		$ 0	[27]	0
Cost		0	[27]	0
Fair value		$ 0	[27]	$ 0		199
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		11%
Principal		$ 2,453		$ 2,866
Cost		2,435		2,828
Fair value		$ 2,435		$ 2,119		3,311
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		7%	[7],[27],[28]	6.25%	[8],[16]
Principal		$ 0	[7],[27],[28]	$ 0	[8],[16]
Cost		(4)	[7],[27],[28]	(1)	[8],[16]
Fair value		$ (3)	[7],[27],[28]	$ 0	[8],[16]
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Reference Rate and Spread		7%	[7],[27],[28]	6.25%	[8],[16]
Principal		$ 0	[7],[27],[28]	$ 0	[8],[16]
Cost		(12)	[7],[27],[28]	(23)	[8],[16]
Fair value		$ (12)	[7],[27],[28]	$ (23)	[8],[16]
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.54%	[7],[28]	9.99%	[8],[16]
Reference Rate and Spread		7%	[7],[28]	6.25%	[8],[16]
Principal		$ 10,991	[7],[28]	$ 11,634	[8],[16]
Cost		10,888	[7],[28]	11,524	[8],[16]
Fair value		$ 10,991	[7],[28]	$ 11,634	[8],[16]
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[7],[28]	12.52%
Reference Rate and Spread	[7],[28]	7%
Principal	[7],[28]	$ 3,878
Cost	[7],[28]	3,807
Fair value	[7],[28]	$ 3,878
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		515		515
Cost		$ 515		$ 515
Fair value		1,290		1,290
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Fair value		$ 2,310		$ 2,010		3,380
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		102		102
Cost		$ 2,550		$ 2,550
Fair value		2,310		2,010
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Fair value		$ 1,290		$ 1,290		0
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.98%	[28]	10.63%	[16]
Reference Rate and Spread		6.50%	[28]	6.50%	[16]
Principal		$ 900	[28]	$ 1,100	[16]
Cost		899	[28]	1,097	[16]
Fair value		$ 899	[28]	$ 1,100	[16]	430
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%		12%
Principal		$ 4,610		$ 4,610
Cost		4,606		4,603
Fair value		$ 4,606		$ 4,603		4,310
Investment, Identifier [Axis]: OVG Business Services, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[8],[16]			10.64%
Reference Rate and Spread	[8],[16]			6.25%
Principal	[8],[16]			$ 17,413
Cost	[8],[16]			17,265
Fair value	[8],[16]			$ 16,368
Investment, Identifier [Axis]: Obra Capital, Inc. (f/k/a Vida Capital, Inc.), Secured Debt
Schedule of Investments [Line Items]
Total Rate	[9]	11.47%
Reference Rate and Spread	[9]	6%
Principal	[9]	$ 7,043
Cost	[9]	6,711
Fair value	[9]	$ 6,039
Investment, Identifier [Axis]: Oneliance, LLC, Preferred Stock
Schedule of Investments [Line Items]
Units (in shares)		282		264
Cost		$ 282		$ 264
Fair value		$ 282		$ 264		264
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		16.48%	[28]	15.13%	[16]
Reference Rate and Spread		11%	[28]	11%	[16]
Principal		$ 1,360	[28]	$ 1,400	[16]
Cost		1,346	[28]	1,380	[16]
Fair value		$ 1,339	[28]	$ 1,380	[16]	1,374
Investment, Identifier [Axis]: Orttech Holdings, LLC, Preferred Stock
Schedule of Investments [Line Items]
Units (in shares)		2,500	[30],[38]	2,500	[29],[39]
Cost		$ 2,500	[30],[38]	$ 2,500	[29],[39]
Fair value		$ 4,260	[30],[38]	$ 2,940	[29],[39]	2,500
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		11%	[27],[28]	11%	[16]
Principal		$ 0	[27],[28]	$ 0	[16]
Cost		(2)	[27],[28]	(2)	[16]
Fair value		$ 0	[27],[28]	$ (2)	[16]	41
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		16.48%	[28]	15.13%	[16]
Reference Rate and Spread		11%	[28]	11%	[16]
Principal		$ 5,510	[28]	$ 5,900	[16]
Cost		5,452	[28]	5,814	[16]
Fair value		5,510	[28]	5,814	[16]	5,937
Investment, Identifier [Axis]: Other 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		0
Investment, Identifier [Axis]: Other 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		$ (6,392)
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[11],[12],[28],[59]	12.80%
Reference Rate and Spread		7.25%	[7],[11],[12],[28],[59]	7.25%	[14],[16],[18]
Principal		$ 198	[7],[11],[12],[28],[59]	$ 0	[14],[16],[18]
Cost		189	[7],[11],[12],[28],[59]	(12)	[14],[16],[18]
Fair value		$ 196	[7],[11],[12],[28],[59]	$ (12)	[14],[16],[18]
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.88%	[7],[11],[12],[28]	11.80%	[14],[16],[18]
Reference Rate and Spread		7.25%	[7],[11],[12],[28]	7.25%	[14],[16],[18]
Principal		$ 1,734	[7],[11],[12],[28]	$ 1,852	[14],[16],[18]
Cost		1,707	[7],[11],[12],[28]	1,817	[14],[16],[18]
Fair value		$ 1,720	[7],[11],[12],[28]	$ 1,828	[14],[16],[18]
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8],[16]			10.26%
Reference Rate and Spread		5.75%	[7],[27],[28]	5.75%	[8],[16]
Principal		$ 0	[7],[27],[28]	$ 71	[8],[16]
Cost		(11)	[7],[27],[28]	57	[8],[16]
Fair value		$ 0	[7],[27],[28]	$ 70	[8],[16]
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.24%	[7],[28],[60]	9.96%	[8],[16],[61]
Reference Rate and Spread		5.75%	[7],[28],[60]	5.75%	[8],[16],[61]
Principal		$ 423	[7],[28],[60]	$ 356	[8],[16],[61]
Cost		414	[7],[28],[60]	343	[8],[16],[61]
Fair value		$ 421	[7],[28],[60]	$ 349	[8],[16],[61]
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.25%	[7],[28]	9.81%	[8],[16]
Reference Rate and Spread		5.75%	[7],[28]	5.75%	[8],[16]
Principal		$ 2,456	[7],[28]	$ 2,363	[8],[16]
Cost		2,412	[7],[28]	2,304	[8],[16]
Fair value		$ 2,442	[7],[28]	2,317	[8],[16]
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		110
Cost		$ 3,135
Fair value		$ 3,135		0
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		8%
Principal		$ 115
Cost		105
Fair value		$ 105		0
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%
Principal		$ 7,660
Cost		7,472
Fair value		$ 7,472		$ 0
Investment, Identifier [Axis]: Power System Solutions, Common Equity
Schedule of Investments [Line Items]
Units (in shares)	[7]	532
Cost	[7]	$ 532
Fair value	[7]	$ 500
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread	[7],[27],[28]	6.75%
Principal	[7],[27],[28]	$ 0
Cost	[7],[27],[28]	(35)
Fair value	[7],[27],[28]	$ (35)
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Reference Rate and Spread	[7],[27],[28]	6.75%
Principal	[7],[27],[28]	$ 0
Cost	[7],[27],[28]	(35)
Fair value	[7],[27],[28]	$ (35)
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[7],[28]	12.12%
Reference Rate and Spread	[7],[28]	6.75%
Principal	[7],[28]	$ 7,939
Cost	[7],[28]	7,729
Fair value	[7],[28]	$ 7,939
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[28]	12.28%
Reference Rate and Spread	[7],[28]	6.85%
Principal	[7],[28]	$ 5,970
Cost	[7],[28]	5,813
Fair value	[7],[28]	$ 5,970
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[28]	12.20%
Reference Rate and Spread	[7],[28]	6.85%
Principal	[7],[28]	$ 570
Cost	[7],[28]	553
Fair value	[7],[28]	$ 570
Investment, Identifier [Axis]: Purge Rite, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)	[7]	1,302,083
Cost	[7]	$ 1,302
Fair value	[7]	$ 1,302
Investment, Identifier [Axis]: Purge Rite, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread	[7],[27],[28]	8%
Principal	[7],[27],[28]	$ 0
Cost	[7],[27],[28]	(19)
Fair value	[7],[27],[28]	$ (19)
Investment, Identifier [Axis]: Purge Rite, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[28]	13.70%
Reference Rate and Spread	[7],[28]	8%
Principal	[7],[28]	$ 3,906
Cost	[7],[28]	3,813
Fair value	[7],[28]	$ 3,813
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[28],[52]	12.22%
Reference Rate and Spread		6.75%	[7],[28],[52]	6.75%	[8],[16]
Principal		$ 796	[7],[28],[52]	$ 0	[8],[16]
Cost		789	[7],[28],[52]	(11)	[8],[16]
Fair value		$ 745	[7],[28],[52]	$ (11)	[8],[16]
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.21%	[7],[28]	10.56%	[8],[16]
Reference Rate and Spread		6.75%	[7],[28]	6.75%	[8],[16]
Principal		$ 12,917	[7],[28]	$ 12,917	[8],[16]
Cost		12,829	[7],[28]	12,789	[8],[16]
Fair value		$ 12,089	[7],[28]	$ 11,685	[8],[16]
Investment, Identifier [Axis]: RM Bidder, LLC, Member Units
Schedule of Investments [Line Items]
Units (in shares)	[8]			1,854
Cost	[8]			$ 31
Fair value	[8]			$ 13
Investment, Identifier [Axis]: RM Bidder, LLC, Warrants
Schedule of Investments [Line Items]
Units (in shares)	[8],[62]			218,601
Cost	[8],[62]			$ 284
Fair value	[8],[62]			$ 0
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.14%	[9],[28]	8.84%	[10],[16]
Reference Rate and Spread		5.50%	[9],[28]	5.50%	[10],[16]
Principal		$ 9,691	[9],[28]	$ 9,820	[10],[16]
Cost		9,691	[9],[28]	9,820	[10],[16]
Fair value		$ 7,237	[9],[28]	$ 7,434	[10],[16]
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[28],[63]	18.47%
Reference Rate and Spread	[7],[28],[63]	6.50%
Principal	[7],[28],[63]	$ 833
Cost	[7],[28],[63]	781
Fair value	[7],[28],[63]	$ 818
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[28]	11.88%
Reference Rate and Spread	[7],[28]	6.50%
Principal	[7],[28]	$ 10,553
Cost	[7],[28]	10,261
Fair value	[7],[28]	$ 10,362
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		1,230		1,230
Cost		$ 1,230		$ 1,230
Fair value		$ 0		1,650		0
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.50%
Principal		$ 0	[27]	0	[16]
Cost		(6)	[27]	(8)	[16]
Fair value		$ (6)	[27]	$ (8)	[16]	0
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%		12.50%	[16]
Principal		$ 3,790		$ 3,965	[16]
Cost		3,745		3,902	[16]
Fair value		$ 3,421		$ 3,902	[16]	0
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8],[16]			10.97%
Reference Rate and Spread		6.50%	[7],[27],[28]	6.50%	[8],[16]
Principal		$ 0	[7],[27],[28]	$ 389	[8],[16]
Cost		(10)	[7],[27],[28]	375	[8],[16]
Fair value		$ 0	[7],[27],[28]	$ 389	[8],[16]
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.16%	[7],[28]	10.32%	[8],[16]
Reference Rate and Spread		6.50%	[7],[28]	6.50%	[8],[16]
Principal		$ 4,219	[7],[28]	$ 2,917	[8],[16]
Cost		4,150	[7],[28]	2,835	[8],[16]
Fair value		$ 4,142	[7],[28]	$ 2,917	[8],[16]
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		14.16%	[7],[28]	10.32%	[8],[16]
Reference Rate and Spread		8.50%	[7],[28]	6.50%	[8],[16]
Principal		$ 4,219	[7],[28]	$ 3,967	[8],[16]
Cost		4,150	[7],[28]	3,906	[8],[16]
Fair value		$ 4,082	[7],[28]	$ 3,967	[8],[16]
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.54%	[7],[28]	13.02%	[8],[16]
Reference Rate and Spread		6%	[7],[28]	6.25%	[8],[16]
PIK Rate		2%	[7],[28]	2%	[8],[16]
Principal		$ 6,410	[7],[28]	$ 6,250	[8],[16]
Cost		6,389	[7],[28]	6,212	[8],[16]
Fair value		$ 6,383	[7],[28]	$ 5,597	[8],[16]
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.54%	[7],[28]	13.02%	[8],[16]
Reference Rate and Spread		6%	[7],[28]	6.25%	[8],[16]
PIK Rate		2%	[7],[28]	2%	[8],[16]
Principal		$ 9,022	[7],[28]	$ 9,250	[8],[16]
Cost		8,991	[7],[28]	9,190	[8],[16]
Fair value		$ 8,984	[7],[28]	$ 8,293	[8],[16]
Investment, Identifier [Axis]: SI East, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)		55	[30]	52	[29]
Cost		$ 508	[30]	$ 406	[29]
Fair value		$ 6,390	[30]	4,550	[29]	3,860
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.25%
Principal		$ 375		0
Cost		370		0
Fair value		$ 375		$ 0		750
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.47%		9.50%
Principal		$ 18,179		$ 29,929
Cost		18,019		29,795
Fair value		$ 18,179		29,929
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		12.47%
Fair value		$ 18,179		$ 0
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2.2
Schedule of Investments [Line Items]
Total Rate				9.50%
Fair value				$ 29,929		21,200
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		9.50%
Fair value		$ 0		$ 29,929
Investment, Identifier [Axis]: SIB Holdings, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)	[8]			119,048
Cost	[8]			$ 250
Fair value	[8]			$ 183
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8],[16]			11.01%
Reference Rate and Spread	[8],[16]			6.25%
Principal	[8],[16]			$ 522
Cost	[8],[16]			511
Fair value	[8],[16]			$ 491
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[8],[16]			11.01%
Reference Rate and Spread	[8],[16]			6.25%
Principal	[8],[16]			$ 1,954
Cost	[8],[16]			1,908
Fair value	[8],[16]			$ 1,803
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[8],[16]			11.01%
Reference Rate and Spread	[8],[16]			6.25%
Principal	[8],[16]			$ 9,726
Cost	[8],[16]			9,576
Fair value	[8],[16]			$ 8,974
Investment, Identifier [Axis]: SPAU Holdings, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		200,000	[7]	200,000	[8]
Cost		$ 200	[7]	$ 200	[8]
Fair value		$ 160	[7]	$ 200	[8]
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		8%	[7],[27],[28]	7.50%	[8],[16]
Principal		$ 0	[7],[27],[28]	$ 0	[8],[16]
Cost		(14)	[7],[27],[28]	(18)	[8],[16]
Fair value		$ 0	[7],[27],[28]	$ (18)	[8],[16]
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.72%	[7],[28]	11.06%	[8],[16]
Reference Rate and Spread		8%	[7],[28]	7.50%	[8],[16]
Principal		$ 4,925	[7],[28]	$ 4,975	[8],[16]
Cost		4,857	[7],[28]	4,887	[8],[16]
Fair value		$ 4,925	[7],[28]	$ 4,975	[8],[16]
Investment, Identifier [Axis]: Savers, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[10],[16]			10.34%
Reference Rate and Spread	[10],[16]			5.50%
Principal	[10],[16]			$ 4,281
Cost	[10],[16]			4,270
Fair value	[10],[16]			$ 4,149
Investment, Identifier [Axis]: Slick Innovations, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		17,500		17,500	[29]
Cost		$ 114		$ 114	[29]
Fair value		$ 600		$ 400	[29]
Investment, Identifier [Axis]: Slick Innovations, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14%		14%
Principal		$ 2,860		$ 3,460
Cost		2,777		3,334
Fair value		$ 2,860		$ 3,460
Investment, Identifier [Axis]: Sonic Systems International, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)	[8]			11,647
Cost	[8]			$ 1,584
Fair value				$ 1,490	[8]	1,250
Investment, Identifier [Axis]: Sonic Systems International, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[8],[16]			11.24%
Reference Rate and Spread	[8],[16]			7.50%
Principal	[8],[16]			$ 18,425
Cost	[8],[16]			18,143
Fair value				$ 18,425	[8],[16]	13,738
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		60,606	[7]	60,606	[8]
Cost		$ 61	[7]	$ 61	[8]
Fair value		$ 59	[7]	$ 92	[8]
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[28]	11.46%
Reference Rate and Spread		6%	[7],[28]	5.75%	[8],[16]
Principal		$ 38	[7],[28]	$ 0	[8],[16]
Cost		34	[7],[28]	(6)	[8],[16]
Fair value		$ 34	[7],[28]	$ (6)	[8],[16]
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.70%	[7],[28]	9.69%	[8],[16]
Reference Rate and Spread		6%	[7],[28]	5.75%	[8],[16]
Principal		$ 2,979	[7],[28]	$ 3,523	[8],[16]
Cost		2,943	[7],[28]	3,467	[8],[16]
Fair value		$ 2,979	[7],[28]	$ 3,523	[8],[16]
Investment, Identifier [Axis]: Student Resource Center, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		6,564,055	[7]	6,564,055	[8]
Cost		$ 0	[7]	$ 0	[8]
Fair value		$ 0	[7]	$ 0	[8]	0
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		8.50%	[7],[34]	13.27%	[8]
Reference Rate and Spread	[8]			8.50%
PIK Rate	[7],[34]	8.50%
Principal		$ 5,918	[7],[34]	$ 5,556	[8]
Cost		5,426	[7],[34]	5,063	[8]
Fair value		$ 3,543	[7],[34]	$ 5,063	[8]
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				13.27%
Reference Rate and Spread				8.50%
Fair value				$ 5,063		0
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Fair value				$ 0		0
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)				136
Cost				$ 2,311
Fair value				1,920		2,145
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		1,651
Cost		$ 165
Fair value		$ 0		1,920
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Units (in shares)		1,411
Cost		$ 141
Fair value		$ 0		0
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 3
Schedule of Investments [Line Items]
Units (in shares)		136
Cost		$ 2,311
Fair value		$ 0		$ 0
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%	[36]	12%
Principal		$ 460	[36]	$ 460
Cost		460	[36]	460
Fair value		$ 432	[36]	$ 460		259
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%	[36]	12%
Principal		$ 3,800	[36]	$ 3,800
Cost		3,800	[36]	3,797
Fair value		$ 3,565	[36]	$ 3,780		3,754
Investment, Identifier [Axis]: Tex Tech Tennis, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		1,000,000	[7],[38]	1,000,000	[8],[39]
Cost		$ 1,000	[7],[38]	$ 1,000	[8],[39]
Fair value		$ 2,840	[7],[38]	$ 1,830	[8],[39]
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock
Schedule of Investments [Line Items]
Units (in shares)	[29]			320,000
Cost	[29]			$ 1,600
Fair value	[29]			$ 1,600
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 1
Schedule of Investments [Line Items]
Units (in shares)		43,027
Cost		$ 43
Fair value		$ 43
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 2
Schedule of Investments [Line Items]
Units (in shares)	[30]	320,000
Cost	[30]	$ 1,600
Fair value	[30]	$ 1,600
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13%		13%
Principal		$ 40		$ 30
Cost		37		26
Fair value		$ 37		$ 26
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%		13%
Principal		$ 1,880		$ 2,380
Cost		1,858		2,341
Fair value		$ 1,841		$ 2,341
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		154	[30]	154	[29]
Cost		$ 1,164	[30]	$ 1,164	[29]
Fair value		$ 3,180	[30]	1,950	[29]	2,160
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		8%
Principal		$ 0	[27]	0
Cost		(1)	[27]	(3)
Fair value		$ 0	[27]	$ 0		(6)
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%		12%
Principal		$ 1,980		$ 1,980
Cost		1,975		1,960
Fair value		$ 1,980		$ 1,980		2,180
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[10],[16]			11.57%
Reference Rate and Spread	[10],[16]			1.25%
PIK Rate	[10],[16]			7.25%
Principal	[10],[16]			$ 13,425
Cost	[10],[16]			13,358
Fair value	[10],[16]			$ 5,018
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[9],[28],[34]	12.53%
Reference Rate and Spread	[9],[28],[34]	7.15%
PIK Rate	[9],[28],[34]	6%
Principal	[9],[28],[34]	$ 6,802
Cost	[9],[28],[34]	2,623
Fair value	[9],[28],[34]	2,438
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 2
Schedule of Investments [Line Items]
Principal	[9],[34]	692
Cost	[9],[34]	15
Fair value	[9],[34]	$ 0
Investment, Identifier [Axis]: US Bank Money Market Account
Schedule of Investments [Line Items]
Total Rate				0.005%
Cost	[17]			$ 8,347
Fair value	[17]			$ 8,347
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[8],[16]			9.82%
Reference Rate and Spread	[8],[16]			5.75%
Principal	[8],[16]			$ 18,013
Cost	[8],[16]			17,828
Fair value	[8],[16]			$ 18,013
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[28]	11.46%
Reference Rate and Spread	[7],[28]	6%
Principal	[7],[28]	$ 12,405
Cost	[7],[28]	12,308
Fair value	[7],[28]	$ 12,405
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[28]	11.96%
Reference Rate and Spread	[7],[28]	6.50%
Principal	[7],[28]	$ 4,825
Cost	[7],[28]	4,742
Fair value	[7],[28]	$ 4,825
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[7],[28]	11.96%
Reference Rate and Spread	[7],[28]	6.50%
Principal	[7],[28]	$ 2,515
Cost	[7],[28]	2,468
Fair value	[7],[28]	$ 2,515
Investment, Identifier [Axis]: UserZoom Technologies, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7],[28]	12.99%
Reference Rate and Spread	[7],[28]	7.50%
Principal	[7],[28]	$ 3,000
Cost	[7],[28]	2,923
Fair value	[7],[28]	$ 3,000
Investment, Identifier [Axis]: VORTEQ Coil Finishers, LLC, Common Equity
Schedule of Investments [Line Items]
Units (in shares)		769,231	[7],[30]	769,231	[8],[29]
Cost		$ 769	[7],[30]	$ 769	[8],[29]
Fair value		$ 1,911	[7],[30]	$ 2,910	[8],[29]
Investment, Identifier [Axis]: VVS Holdco LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		3,060	[30],[38]	2,960	[29],[39]
Cost		$ 3,060	[30],[38]	$ 2,960	[29],[39]
Fair value		$ 3,060	[30],[38]	$ 2,990	[29],[39]	2,960
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		6%	[27],[28],[36]	6%	[16],[39]
Principal		$ 0	[27],[28],[36]	$ 0	[16],[39]
Cost		0	[27],[28],[36]	(5)	[16],[39]
Fair value		$ 0	[27],[28],[36]	$ (5)	[16],[39]	292
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.50%		11.50%	[39]
Principal		$ 7,050		$ 7,600	[39]
Cost		6,926		7,421	[39]
Fair value		$ 6,926		$ 7,421	[39]	$ 7,375
Investment, Identifier [Axis]: Vida Capital, Inc, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[10]			10.38%
Reference Rate and Spread	[10]			6%
Principal	[10]			$ 6,263
Cost	[10]			6,208
Fair value	[10]			$ 4,885
Investment, Identifier [Axis]: Vistar Media, Inc., Preferred Stock
Schedule of Investments [Line Items]
Units (in shares)		70,207	[7]	70,207	[8]
Cost		$ 767	[7]	$ 767	[8]
Fair value		$ 2,180	[7]	2,250	[8]
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7],[28]	12.63%
Reference Rate and Spread	[7],[28]	7%
Principal	[7],[28]	$ 12,500
Cost	[7],[28]	12,193
Fair value	[7],[28]	$ 12,193
Investment, Identifier [Axis]: Volusion, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		772,620
Cost		$ 1,104
Fair value		$ 0		$ 0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Units (in shares)				2,090,001
Cost				$ 6,000
Fair value				0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Units (in shares)		2,184,683
Cost		$ 3,706
Fair value		3,110
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)		61,077
Cost		$ 0
Fair value		0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Fair value		$ 3,110		0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 3
Schedule of Investments [Line Items]
Units (in shares)		2,090,001
Cost		$ 6,000
Fair value		$ 0		$ 0
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10%		11.50%	[37]
Principal		$ 900		$ 7,172	[37]
Cost		900		7,172	[37]
Fair value		$ 900		6,392	[37]
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10%
Fair value		$ 900		0
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.50%
Fair value		$ 0		$ 6,392
Investment, Identifier [Axis]: Volusion, LLC, Unsecured Convertible Debt
Schedule of Investments [Line Items]
Total Rate		8%		8%
Principal				$ 175
Cost				175
Fair value		$ 0		$ 0
Investment, Identifier [Axis]: Volusion, LLC, Warrants
Schedule of Investments [Line Items]
Units (in shares)	[26]			784,867
Cost	[26]			$ 1,104
Fair value		$ 0		$ 0	[26]
Investment, Identifier [Axis]: Wall Street Prep, Inc., Common Stock
Schedule of Investments [Line Items]
Units (in shares)		500,000	[7]	500,000	[8]
Cost		$ 500	[7]	$ 500	[8]
Fair value		$ 910	[7]	$ 530	[8]
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		7%	[7],[27],[28]	7%	[8],[16]
Principal		$ 0	[7],[27],[28]	$ 0	[8],[16]
Cost		(5)	[7],[27],[28]	(7)	[8],[16]
Fair value		$ (5)	[7],[27],[28]	$ (7)	[8],[16]
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.54%	[7],[28]	10.74%	[8],[16]
Reference Rate and Spread		7%	[7],[28]	7%	[8],[16]
Principal		$ 4,654	[7],[28]	$ 5,328	[8],[16]
Cost		4,600	[7],[28]	5,252	[8],[16]
Fair value		$ 4,654	[7],[28]	$ 5,216	[8],[16]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.50%	[7],[28],[56]	10.73%	[8],[16]
Reference Rate and Spread		6%	[7],[28],[56]	6%	[8],[16]
Principal		$ 253	[7],[28],[56]	$ 51	[8],[16]
Cost		249	[7],[28],[56]	46	[8],[16]
Fair value		$ 253	[7],[28],[56]	$ 51	[8],[16]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.50%	[7],[28]	10.73%	[8],[16]
Reference Rate and Spread		6%	[7],[28]	6%	[8],[16]
Principal		$ 53	[7],[28]	$ 53	[8],[16]
Cost		47	[7],[28]	45	[8],[16]
Fair value		$ 53	[7],[28]	$ 53	[8],[16]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.50%	[7],[28]	10.73%	[8],[16]
Reference Rate and Spread		6%	[7],[28]	6%	[8],[16]
Principal		$ 2,166	[7],[28]	$ 4,142	[8],[16]
Cost		2,146	[7],[28]	4,089	[8],[16]
Fair value		$ 2,166	[7],[28]	$ 4,141	[8],[16]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[7],[28]	11.50%
Reference Rate and Spread	[7],[28]	6%
Principal	[7],[28]	$ 1,955
Cost	[7],[28]	1,936
Fair value	[7],[28]	$ 1,955
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Common Stock
Schedule of Investments [Line Items]
Units (in shares)		200,000	[7]	200,000	[8]
Cost		$ 200	[7]	$ 200	[8]
Fair value		$ 390	[7]	$ 250	[8]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[28],[64]	11.34%
Reference Rate and Spread		6%	[7],[28],[64]	6%	[8],[16]
Principal		$ 665	[7],[28],[64]	$ 0	[8],[16]
Cost		654	[7],[28],[64]	(6)	[8],[16]
Fair value		$ 665	[7],[28],[64]	$ (6)	[8],[16]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.35%	[7],[28]	8.59%	[8],[16]
Reference Rate and Spread		6%	[7],[28]	6%	[8],[16]
Principal		$ 2,948	[7],[28]	$ 2,978	[8],[16]
Cost		2,907	[7],[28]	2,926	[8],[16]
Fair value		$ 2,947	[7],[28]	$ 2,948	[8],[16]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[7],[28]	11.35%
Reference Rate and Spread	[7],[28]	6%
Principal	[7],[28]	$ 1,467
Cost	[7],[28]	1,438
Fair value	[7],[28]	$ 1,467
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[28],[65]	12.64%
Reference Rate and Spread		7%	[7],[28],[65]	7%	[8],[16]
Principal		$ 2,778	[7],[28],[65]	$ 0	[8],[16]
Cost		2,745	[7],[28],[65]	(43)	[8],[16]
Fair value		$ 2,778	[7],[28],[65]	$ 0	[8],[16]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[28]	12.66%
Reference Rate and Spread		7%	[7],[28]	7%	[8],[16]
Principal		$ 2,583	[7],[28]	$ 0	[8],[16]
Cost		2,528	[7],[28]	(43)	[8],[16]
Fair value		$ 2,583	[7],[28]	$ (43)	[8],[16]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.66%	[7],[28]	10.74%	[8],[16]
Reference Rate and Spread		7%	[7],[28]	7%	[8],[16]
Principal		$ 11,625	[7],[28]	$ 12,500	[8],[16]
Cost		11,479	[7],[28]	12,305	[8],[16]
Fair value		$ 11,625	[7],[28]	$ 12,487	[8],[16]
Investment, Identifier [Axis]: World Micro Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Units (in shares)		530	[30]	530
Cost		$ 530	[30]	$ 530
Fair value		$ 530	[30]	$ 530
Investment, Identifier [Axis]: World Micro Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%		13%
Principal		$ 1,627		$ 1,970
Cost		1,601		1,930
Fair value		$ 1,601		$ 1,930
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Reference Rate and Spread		5.25%	[7],[27],[28]	5.25%	[8]
Principal		$ 0	[7],[27],[28]	$ 0	[8]
Cost		(5)	[7],[27],[28]	(6)	[8]
Fair value		$ 0	[7],[27],[28]	$ (6)	[8]
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.22%	[7],[28]	10.84%	[8]
Reference Rate and Spread		5.75%	[7],[28]	5.25%	[8]
Principal		$ 1,188	[7],[28]	$ 1,200	[8]
Cost		1,163	[7],[28]	1,169	[8]
Fair value		$ 1,188	[7],[28]	$ 1,192	[8]
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.25%	[7],[28]	8.63%	[8]
Reference Rate and Spread		5.75%	[7],[28]	5.25%	[8]
Principal		$ 2,352	[7],[28]	$ 2,370	[8]
Cost		2,321	[7],[28]	2,332	[8]
Fair value		$ 2,352	[7],[28]	$ 2,354	[8]
Investment, Identifier [Axis]: YS Garments, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%	[9],[28]	9.51%	[10],[16]
Reference Rate and Spread		7.50%	[9],[28]	5.50%	[10],[16]
Principal		$ 5,584	[9],[28]	$ 6,329	[10],[16]
Cost		5,485	[9],[28]	6,310	[10],[16]
Fair value		$ 5,110	[9],[28]	$ 6,064	[10],[16]
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.71%	[7],[28],[66]	11.67%	[8],[16]
Reference Rate and Spread		7.25%	[7],[28],[66]	7.25%	[8],[16]
Principal		$ 2,356	[7],[28],[66]	$ 2,388	[8],[16]
Cost		2,352	[7],[28],[66]	2,357	[8],[16]
Fair value		$ 2,234	[7],[28],[66]	$ 2,388	[8],[16]
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.71%	[7],[28],[66]	11.67%	[8],[16],[67]
Reference Rate and Spread		7.25%	[7],[28],[66]	7.25%	[8],[16],[67]
Principal		$ 591	[7],[28],[66]	$ 599	[8],[16],[67]
Cost		589	[7],[28],[66]	594	[8],[16],[67]
Fair value		$ 555	[7],[28],[66]	$ 597	[8],[16],[67]
[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. 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. Money market fund interests included in cash and cash equivalents. Short-term investments represent an investment in a fund that invests in highly liquid investments with average original maturity dates of three months or less. These short-term investments are included as Cash and cash equivalents on the Consolidated Balance Sheets. 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. 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. 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. 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. 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 LIBOR floors which range between 0.50% and 2.00%, with a weighted-average LIBOR floor of 1.04%. Effective yield as of December 31, 2022 was approximately 0.005% on the US Bank Money Market Account. Portfolio company headquarters are located outside of the United States. 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. 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 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, 95% of these floating rate loans (based on the par amount) contain LIBOR or Term SOFR ("SOFR") floors which range between 0.75% and 2.00%, with a weighted-average floor of 1.17%. Income producing through dividends or distributions. Income producing through dividends or distributions. Warrants are presented in equivalent shares/units with a strike price of $1.00 per share/unit. 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 2.50%. Non-accrual and non-income producing debt investment. Non-accrual and non-income producing debt investment. 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. Shares/Units represent ownership in a related Real Estate or HoldCo entity. 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. The security has an effective contractual interest rate of 2.00% PIK + LIBOR+6.50%, Floor 1.00%,but the issuer may, in its discretion, elect to pay the PIK interest in cash. The rate presented represents the effective current yield based on actual payments received during the period. 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, 2022, borrowings under the loan facility bore interest at SOFR+6.25% (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, 2022. As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+6.25% (Floor 1.00%). Due to an amendment and subsequent funding during the quarter, the term loan facility has different floating rate reset dates. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022. 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, 2022, borrowings under the loan facility bore interest at LIBOR+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, 2022. Effective yield as of December 31, 2023 was approximately 5.25% on the Fidelity Government Portfolio Class III Fund. Effective yield as of December 31, 2023 was approximately 5.23% on the First American Treasury Obligations Fund Class Z. As of December 31, 2022, 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, 2022. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.00% (Floor 1.50%). 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+6.75% (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, 2022, borrowings under the loan facility bore interest at LIBOR+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, 2022. 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, 2022, borrowings under the loan facility bore interest at LIBOR+7.25% (Floor 0.75%). 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, 2022. As of December 31, 2022, 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, 2022. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.25% (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%). 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, 2022, borrowings under the loan facility bore interest at SOFR+5.75% (Floor 1.00%). Delayed draw term loan 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, 2022. Warrants are presented in equivalent units with a strike price of $14.28 per unit. 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. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.00% (Floor 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. As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+7.25% (Floor 1.00%). Each new draw on the delayed draw term loan 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, 2022.

Consolidated Schedule of Inve_2

Consolidated Schedule of Investments (Parenthetical) - $ / shares		12 Months Ended
		Dec. 31, 2023		Dec. 31, 2022
Schedule of Investments [Line Items]
Percentage of loans with variable rate floors		95%		93%
Strike price (in dollars per share)		$ 1		$ 0.01
Jackmont Hospitality, Inc.
Schedule of Investments [Line Items]
Floor rate		1%
Imaging Business Machines, L.L.C.
Schedule of Investments [Line Items]
Floor rate		1.50%
Computer Data Source, LLC
Schedule of Investments [Line Items]
Floor rate		1%		1%
Inspire Aesthetics Management, LLC
Schedule of Investments [Line Items]
Floor rate		2%
Industrial Services Acquisition, LLC
Schedule of Investments [Line Items]
Floor rate		1%
RA Outdoors LLC
Schedule of Investments [Line Items]
Floor rate		1%
Zips Car Wash, LLC
Schedule of Investments [Line Items]
Floor rate		1%		1%
Richardson Sales Solutions
Schedule of Investments [Line Items]
Floor rate		2%
Winter Services LLC
Schedule of Investments [Line Items]
Floor rate		1%
Watterson Brands, LLC
Schedule of Investments [Line Items]
Floor rate		1%
JTI Electrical & Mechanical, LLC
Schedule of Investments [Line Items]
Floor rate		1%
West Star Aviation Acquisition, LLC
Schedule of Investments [Line Items]
Floor rate		0.75%
Paragon Healthcare, Inc.
Schedule of Investments [Line Items]
Floor rate		1%		1%
Channel Partners Intermediateco, LLC
Schedule of Investments [Line Items]
Floor rate		2%		1%
PTL US Bidco, Inc
Schedule of Investments [Line Items]
Floor rate		1%
Cadence Aerospace LLC
Schedule of Investments [Line Items]
Floor rate				1%
PIK rate				2%
Mako Steel, LP
Schedule of Investments [Line Items]
Floor rate				0.75%
Channel Partners Intermediateco, LLC
Schedule of Investments [Line Items]
Floor rate				1%
IG Parent Corporation
Schedule of Investments [Line Items]
Floor rate				1%
NWN Corporation
Schedule of Investments [Line Items]
Floor rate				1%
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt
Schedule of Investments [Line Items]
Effective yield	[1]			18%
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[2]	18%
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield	[2]	18%
Investment, Identifier [Axis]: AAC Holdings, Inc., Warrants
Schedule of Investments [Line Items]
Strike price (in dollars per share)		$ 0.01
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		5%	[3],[4],[5]	6%	[6],[7]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		6%	[3],[5]	6%	[6],[7]
Effective yield		11.43%	[3],[5]	10.20%	[6],[7]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate		6%	[3],[5]	6%	[6],[7]
Effective yield		11.43%	[3],[5]	10.58%	[6],[7]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 4
Schedule of Investments [Line Items]
Variable rate	[3],[5]	6%
Effective yield	[3],[5]	11.43%
Investment, Identifier [Axis]: ADS Tactical, Inc., Secured Debt
Schedule of Investments [Line Items]
Variable rate		5.75%	[2],[5]	5.75%	[1],[7]
Effective yield		11.22%	[2],[5]	10.14%	[1],[7]
Investment, Identifier [Axis]: AFG Capital Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield				10%
Investment, Identifier [Axis]: AMEREQUIP LLC., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		7.40%	[3],[4],[5]	7.40%	[6],[7]
Investment, Identifier [Axis]: AMEREQUIP LLC., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		7.40%	[3],[5]	7.40%	[6],[7]
Effective yield		12.76%	[3],[5]	11.72%	[6],[7]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6.50%	[3],[5]	5.50%	[6],[7]
Effective yield	[3],[5]	12.16%
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		5.50%	[3],[5]	5.50%	[6],[7]
Effective yield		11.16%	[3],[5]	9.32%	[6],[7]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate		7.50%	[3],[5]	7.50%	[6],[7]
Effective yield		13.16%	[3],[5]	11.32%	[6],[7]
Investment, Identifier [Axis]: ATX Networks Corp., Secured Debt
Schedule of Investments [Line Items]
Variable rate		7.50%		7.50%	[1],[7]
Effective yield	[1],[7]			12.23%
Investment, Identifier [Axis]: ATX Networks Corp., Unsecured Debt
Schedule of Investments [Line Items]
Effective yield		10%		10%	[1]
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		7.25%	[3],[4],[5]	7.25%	[6],[7]
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		7.25%	[3],[5]	7.25%	[6],[7]
Effective yield		12.76%	[3],[5]	12.17%	[6],[7]
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		7.50%	[3],[4],[5]	9.50%	[6],[7]
Effective yield	[6],[7]			13.88%
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		7.50%	[3],[5]	9%	[6],[7]
Effective yield		12.98%	[3],[5]	13.57%	[6],[7]
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		7%	[3],[5],[8]	6%	[6],[7],[9]
Interest rate		3%		2.50%
Effective yield		11%	[3],[5],[8]	10%	[6],[7],[9]
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		7%	[3],[5],[8]	7.50%	[6],[7],[9]
Interest rate		3%		2.50%
Effective yield		11%	[3],[5],[8]	10%	[6],[7],[9]
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		5%	[3],[4],[5]	6%	[6],[7]
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		5%	[3],[5]	6%	[6],[7]
Effective yield		13.50%	[3],[5]	11.12%	[6],[7]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		9.75%	[3],[5]	6.75%	[6],[7]
Effective yield		15.29%	[3],[5]	10.46%	[6],[7]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		9.75%	[3],[5]	8.75%	[6],[7]
Effective yield		15.29%	[3],[5]	12.46%	[6],[7]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate	[3],[5],[10]	11.75%
Effective yield	[3],[5],[10]	17.29%
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Variable rate	[3],[5],[10]	11.75%
Effective yield	[3],[5],[10]	17.29%
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[1],[11]			6.50%
Effective yield	[1],[11]			7.50%
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[1],[7],[11]			6.50%
Effective yield	[1],[7],[11]			7.50%
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Effective yield		14.13%		14.13%
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Effective yield		14.13%		14.13%
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		10%	[5]	10%	[7]
Effective yield	[5]	15.38%
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		10%	[5]	10%	[7]
Effective yield		15.38%	[5]	14.13%	[7]
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Warrants
Schedule of Investments [Line Items]
Strike price (in dollars per share)		$ 0.01
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[6],[7]			9%
Effective yield		15%	[3]	13.41%	[6],[7]
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		6.50%	[3],[5]	9%	[6],[7]
Effective yield		12.04%	[3],[5]	13.56%	[6],[7]
Investment, Identifier [Axis]: Archer Systems, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[6],[7]			6.50%
Investment, Identifier [Axis]: Archer Systems, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[6],[7]			6.50%
Effective yield	[6],[7]			10.92%
Investment, Identifier [Axis]: BBB Tank Services, LLC, Preferred Stock (non-voting)
Schedule of Investments [Line Items]
Effective yield				15%
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 1
Schedule of Investments [Line Items]
Variable rate	[7],[12]			11%
Effective yield	[7],[12]			15.12%
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 2
Schedule of Investments [Line Items]
Variable rate	[7],[12]			11%
Effective yield	[7],[12]			15.12%
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		10%
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		10%		11%
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Effective yield		10%
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2.2
Schedule of Investments [Line Items]
Effective yield				11%
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		10%
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 2
Schedule of Investments [Line Items]
Effective yield	[6],[13],[14]			8%
Investment, Identifier [Axis]: Berry Aviation, Inc., Secured Debt
Schedule of Investments [Line Items]
Effective yield	[6]			12%
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		7.25%	[3],[4],[5]	1%	[6],[7]
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		7.25%	[3],[5]	1%	[6],[7]
Effective yield		12.64%	[3],[5]	11.40%	[6],[7]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		7.50%	[2],[5]	8.50%	[1],[7]
Effective yield	[2],[5]	16%
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		8.50%	[2],[5]	8.50%	[1],[7]
Effective yield		13.96%	[2],[5]	12.94%	[1],[7]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Warrants
Schedule of Investments [Line Items]
Strike price (in dollars per share)		$ 0.01
Investment, Identifier [Axis]: Boccella Precast Products LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		10%		10%
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[3],[4],[5],[15],[16]	7%
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[3],[5],[15],[16]	6%
Effective yield	[3],[5],[15],[16]	11.54%
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate	[3],[5],[15],[16]	8%
Effective yield	[3],[5],[15],[16]	13.54%
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate		10%	[5]	10%	[7]
Effective yield		15.46%	[5]	14.12%	[7]
Investment, Identifier [Axis]: Buca C, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Effective yield		6%		6%
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		12%	[17]	9%
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		5%	[3],[5]	5%	[6],[7]
Effective yield	[3],[5]	10.46%
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		5%	[3],[5]	5%	[6],[7]
Effective yield		10.46%	[3],[5]	8.91%	[6],[7]
Investment, Identifier [Axis]: CQ Fluency, LLC, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[3],[4],[5]	7%
Investment, Identifier [Axis]: CQ Fluency, LLC, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[3],[4],[5]	7%
Investment, Identifier [Axis]: CQ Fluency, LLC, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate	[3],[5]	7%
Effective yield	[3],[5]	12.45%
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate	[6],[7],[18]			8.50%
Effective yield	[6],[7],[18]			11.99%
Investment, Identifier [Axis]: Camin Cargo Control, Inc., Secured Debt
Schedule of Investments [Line Items]
Variable rate	[1],[7]			6.50%
Effective yield	[1],[7]			10.88%
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6%	[5]	6%	[7]
Effective yield	[5]	11.38%
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		13%		12.50%
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6%	[3],[4],[5]	6%	[6],[7]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		6%	[3],[5]	6%	[6],[7]
Effective yield		11.61%	[3],[5]	10.73%	[6],[7]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Variable rate		6%	[3],[5]	5.75%	[6],[7]
Effective yield		11.61%	[3],[5]	10.48%	[6],[7]
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		9%	[4],[5]	9%	[7]
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		9%	[5]	9%	[7]
Effective yield		14.48%	[5]	13.13%	[7]
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6%	[4],[5]	6%	[7]
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		8%	[5]	8%	[7]
Effective yield		13.49%	[5]	12.13%	[7]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		7%	[3],[5],[19]	6.25%	[6],[7],[20]
Effective yield		12.60%	[3],[5],[19]	10.72%	[6],[7],[20]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		7%	[3],[5]	6.25%	[6],[7],[21]
Effective yield		12.66%	[3],[5]	10.71%	[6],[7],[21]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate	[3],[5]	7%
Effective yield	[3],[5]	12.66%
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Variable rate	[3],[5]	7%
Effective yield	[3],[5]	12.66%
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[7]			9%
Effective yield		11.50%		13.23%	[7]
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1.1
Schedule of Investments [Line Items]
Variable rate				9%
Effective yield		11.50%
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		10%		10%
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Variable rate				9%
Effective yield		11.50%		13.23%
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		10%		10%
Investment, Identifier [Axis]: Clarius BIGS, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield	[6],[11],[12]			15%
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6%	[5]	6%	[7]
Effective yield		11.69%	[5]	9.75%	[7]
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		8%		8%
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[7]			10.50%
Effective yield	[7]			15.38%
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1.1
Schedule of Investments [Line Items]
Effective yield		12.50%
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1.2
Schedule of Investments [Line Items]
Variable rate				10.50%
Effective yield				15.38%
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[7]			10.50%
Effective yield		12.50%		15.38%	[7]
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2.1
Schedule of Investments [Line Items]
Effective yield		12.50%
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2.2
Schedule of Investments [Line Items]
Variable rate				10.50%
Effective yield				15.38%
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Variable rate		10.50%
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Variable rate		10.50%
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12%		12%
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		13.50%
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		13.50%
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		8%	[3],[5],[22]	8%	[6],[7],[23]
Effective yield		13.52%	[3],[5],[22]	12.56%	[6],[7],[23]
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		8%	[3],[5]	8%	[6],[7]
Effective yield		13.52%	[3],[5]	12.56%	[6],[7]
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		12%		12%
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class A Preferred Member Units
Schedule of Investments [Line Items]
Effective yield		8%	[3]	8%	[6]
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class AA Preferred Member Units (non-voting)
Schedule of Investments [Line Items]
Effective yield		10%	[3],[24]	10%	[6],[14]
Investment, Identifier [Axis]: DTE Enterprises, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[6],[7]			7.50%
Investment, Identifier [Axis]: DTE Enterprises, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[6],[7]			7.50%
Effective yield	[6],[7]			12.24%
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[6],[7]			8%
Effective yield	[6],[7]			11.90%
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[6],[7]			8%
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 3
Schedule of Investments [Line Items]
Variable rate	[6],[7]			8%
Effective yield	[6],[7]			12.56%
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		7.50%		7.50%
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		10%		7.50%
Investment, Identifier [Axis]: Digital Products Holdings LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate		10%	[5]	10%	[7]
Effective yield		15.38%	[5]	14.13%	[7]
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[7]			11%
Effective yield		14%
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[7]			11%
Effective yield		14%		15.13%	[7]
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Variable rate				11%
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		5%	[3],[5]	4.50%	[6],[7]
Effective yield		10.45%	[3],[5]	9.18%	[6],[7]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		7%	[3],[5]	6.50%	[6],[7]
Effective yield		12.45%	[3],[5]	11.18%	[6],[7]
Investment, Identifier [Axis]: EPIC Y-Grade Services, LP, Secured Debt
Schedule of Investments [Line Items]
Variable rate	[1],[7]			6%
Effective yield	[1],[7]			10.70%
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6%	[4],[5]	6%	[7]
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12%		12%
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		9%		9%
Investment, Identifier [Axis]: Emerald Technologies Acquisition Co, Inc., Secured Debt
Schedule of Investments [Line Items]
Variable rate		6.25%	[2],[5]	6.25%	[1],[7]
Effective yield		11.79%	[2],[5]	10.67%	[1],[7]
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		5.50%	[3],[4],[5]	6.50%	[6],[7]
Effective yield	[6],[7]			11.68%
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		6.50%	[3],[5]	6.50%	[6],[7]
Effective yield		11.98%	[3],[5]	10.92%	[6],[7]
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[3],[4],[5]	8%
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[3],[5]	8%
Effective yield	[3],[5]	13.45%
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		7%	[3],[5]	7%	[6],[7],[13]
Effective yield		12.61%	[3],[5]	10.67%	[6],[7],[13]
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		7%	[3],[5]	7%	[6],[7],[13]
Effective yield		12.61%	[3],[5]	10.67%	[6],[7],[13]
Investment, Identifier [Axis]: Fidelity Government Portfolio Class III Fund
Schedule of Investments [Line Items]
Effective yield		5.25%
Investment, Identifier [Axis]: First American Treasury Obligations Fund Class Z
Schedule of Investments [Line Items]
Effective yield		5.23%
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6.50%		6.50%	[7]
Effective yield	[7]			10.75%
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		9%		9%	[7]
Effective yield	[7]			13.25%
Investment, Identifier [Axis]: Flip Electronics LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[6],[7]			7.50%
Effective yield	[6],[7]			11.21%
Investment, Identifier [Axis]: Flip Electronics LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[6],[7]			7.50%
Effective yield	[6],[7]			12.19%
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		8%		9%
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		8%
Investment, Identifier [Axis]: GFG Group, LLC., Secured Debt
Schedule of Investments [Line Items]
Effective yield				9%
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6%		6%
Effective yield		11.48%		10.12%
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		8%		8%
Effective yield		13.48%		12.12%
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		7.50%	[4],[5],[8]	8.50%	[7]
Interest rate		3%
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		7.50%	[5],[8]	8.50%	[7]
Interest rate		3%
Effective yield		10.50%	[5],[8]	11.50%	[7]
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate				7.50%
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[3],[4],[5]	6.75%
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[3],[5]	6.75%
Effective yield	[3],[5]	12.22%
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		9.50%	[4],[5]	9.50%	[7]
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.50%		12.50%
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Effective yield		12.50%
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield				12.50%
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		9.50%	[3],[5],[17]	9.50%	[6],[7]
Effective yield		14.34%	[3],[5],[17]	14.34%	[6],[7]
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		9.50%	[3],[5],[17]	9.50%	[6],[7]
Effective yield		14.34%	[3],[5],[17]	14.34%	[6],[7]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6.50%	[3],[4],[5]	6.50%	[6],[7]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		6.50%	[3],[5]	6.50%	[6],[7]
Effective yield	[3],[5]	11.86%
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate		6.50%	[3],[5]	6.50%	[6],[7]
Effective yield		11.86%	[3],[5]	10.62%	[6],[7]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6%	[5]	6%	[7]
Effective yield		11.65%	[5]	10.13%	[7]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.50%		9%
Investment, Identifier [Axis]: Hybrid Promotions, LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate		8.25%	[3],[5]	8.25%	[6]
Effective yield		15.91%	[3],[5]	12.07%	[6]
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		13%
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		5.75%	[2],[4],[5]	5.75%	[1],[7],[25]
Effective yield	[1],[7],[25]			10.17%
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		5.50%	[2],[5]	5.75%	[1],[7]
Effective yield		10.96%	[2],[5]	10.17%	[1],[7]
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate	[2],[5]	5.50%
Effective yield	[2],[5]	10.96%
Investment, Identifier [Axis]: INW Manufacturing, LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate		5.75%	[2],[5]	5.75%	[1],[7]
Effective yield		11.36%	[2],[5]	10.48%	[1],[7]
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[5]	9%
Effective yield	[5]	16.59%
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[5]	9%
Effective yield	[5]	16.59%
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate	[5]	8%
Effective yield	[5]	15.59%
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Variable rate	[5]	10%
Effective yield	[5]	17.59%
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Warrants
Schedule of Investments [Line Items]
Strike price (in dollars per share)		$ 0.01
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[3],[5],[26]	7%
Effective yield	[3],[5],[26]	12.41%
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[3],[5]	7%
Effective yield	[3],[5]	12.45%
Investment, Identifier [Axis]: Implus Footcare, LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate		7.75%	[3],[5]	7.75%	[6],[7]
Effective yield		14.25%	[3],[5]	13.98%	[6],[7]
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Preferred Stock (non-voting) 1
Schedule of Investments [Line Items]
Effective yield	[6]			6%
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[6]			10%
Effective yield	[6]			14.42%
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield	[6],[11]			6%
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Effective yield		10%	[3],[24],[27]	10%	[6],[13],[14]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Effective yield		20%	[3],[24],[27]	20%	[6],[13],[14]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6.75%	[3],[5],[28]	6.75%	[6],[7]
Effective yield		12.22%	[3],[5],[28]	11.50%	[6],[7]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		6.75%	[3],[5]	6.75%	[6],[7]
Effective yield		12.22%	[3],[5]	11.50%	[6],[7]
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		13%
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		5.75%	[3],[5]	5.50%	[6],[7]
Effective yield	[3],[5]	11.21%
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		5.75%	[3],[5]	5.50%	[6],[7]
Effective yield		11.21%	[3],[5]	10.23%	[6],[7]
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[3],[4],[5]	6.25%
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[3],[4],[5]	6.25%
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate	[3],[5]	6.25%
Effective yield	[3],[5]	11.65%
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[3],[5],[29]	8%
Effective yield	[3],[5],[29]	13.53%
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[3],[5]	8%
Effective yield	[3],[5]	13.55%
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate	[3],[5]	8%
Effective yield	[3],[5]	13.55%
Investment, Identifier [Axis]: Integral Energy Services, Preferred Equity
Schedule of Investments [Line Items]
Effective yield	[3]	10%
Investment, Identifier [Axis]: Integral Energy Services, Secured Debt
Schedule of Investments [Line Items]
Variable rate	[3],[5]	7.50%
Effective yield	[3],[5]	13.16%
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		10%	[3],[17],[30]	10%	[6],[31]
Effective yield		15.48%	[3],[17],[30]	14.22%	[6],[31]
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		7%	[3],[10],[17]	7%	[6],[7],[11]
Effective yield		12.46%	[3],[10],[17]	12.07%	[6],[7],[11]
Investment, Identifier [Axis]: Intermedia Holdings, Inc., Secured Debt
Schedule of Investments [Line Items]
Variable rate		6%	[2],[5]	6%	[1],[7]
Effective yield		11.47%	[2],[5]	10.38%	[1],[7]
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6.50%	[3],[5]	6.50%	[6],[7]
Effective yield		12%	[3],[5]	10.14%	[6],[7]
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		6.50%	[3],[5]	6.50%	[6],[7]
Effective yield		12%	[3],[5]	10.17%	[6],[7]
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		13.50%		12.50%
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		13.50%		12.50%
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		13.50%		12.50%
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Effective yield		13.50%		12.50%
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Effective yield		13.50%
Investment, Identifier [Axis]: Isagenix International, LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate		5.50%	[2],[5]	7.75%	[1],[7],[11]
Effective yield		11.04%	[2],[5]	9.93%	[1],[7],[11]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6%	[3],[5],[32]	6%	[6],[7]
Effective yield	[3],[5],[32]	11.64%
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		6%	[3],[5]	6%	[6],[7]
Effective yield		11.61%	[3],[5]	10.73%	[6],[7]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Preferred Equity
Schedule of Investments [Line Items]
Effective yield	[6],[14]			12%
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		7%	[3]	7.50%	[6],[7]
Effective yield		12.46%	[3]	12.23%	[6],[7]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		7%	[3]	7.50%	[6],[7]
Effective yield		12.46%	[3]	12.23%	[6],[7]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[2],[5],[10]	18%
Effective yield		23.63%	[2],[5],[10]	18%	[1]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[2],[5],[10]	16%
Effective yield		21.63%	[2],[5],[10]	19.75%	[1],[11]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate	[2],[5],[10]	16%
Effective yield	[2],[5],[10]	21.63%
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[7]			11.50%
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[7]			11.50%
Effective yield		15%		15.63%	[7]
Investment, Identifier [Axis]: JorVet Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		12%		12%
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		9.25%	[3],[5]	7.25%	[6],[7]
Effective yield		14.75%	[3],[5]	12%	[6],[7]
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		9.25%	[3],[5]	7.25%	[6],[7]
Effective yield		14.75%	[3],[5]	12%	[6],[7]
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		12%		11.50%
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		9%		9%
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		7.25%	[3],[5]	7.25%	[6],[7]
Effective yield		12.71%	[3],[5]	11.21%	[6],[7]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		7.25%	[3],[5]	7.25%	[6],[7]
Effective yield		12.71%	[3],[5]	11.67%	[6],[7]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Variable rate		7.25%	[3],[5]	7.25%	[6],[7]
Effective yield		12.71%	[3],[5]	11.67%	[6],[7]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Variable rate	[3],[5]	7.25%
Effective yield	[3],[5]	12.71%
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 5
Schedule of Investments [Line Items]
Variable rate	[3],[5]	7.25%
Effective yield	[3],[5]	12.71%
Investment, Identifier [Axis]: LLFlex, LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate		9%	[3],[5]	9%	[6],[7]
Effective yield		15.54%	[3],[5]	12.74%	[6],[7]
Investment, Identifier [Axis]: Lightbox Holdings, L.P., Secured Debt
Schedule of Investments [Line Items]
Variable rate		5%	[2]	5%	[1]
Effective yield		10.62%	[2]	9.73%	[1]
Investment, Identifier [Axis]: Logix Acquisition Company, LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate		4.75%	[3],[5]	5.75%	[6],[7]
Effective yield		13.25%	[3],[5]	10.13%	[6],[7]
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6%	[2],[5]	6%	[1],[7]
Effective yield		11.46%	[2],[5]	10.42%	[1],[7]
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		6%	[2],[5]	6%	[1],[7]
Effective yield		11.46%	[2],[5]	10.42%	[1],[7]
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate	[2],[5]	6%
Effective yield	[2],[5]	11.46%
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Variable rate	[2],[5]	6%
Effective yield	[2],[5]	11.46%
Investment, Identifier [Axis]: MH Corbin Holding LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		13%	[17]	13%
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6.75%	[3],[4],[5]	7.25%	[6],[7],[33]
Effective yield	[6],[7],[33]			11.79%
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		6.75%	[3],[5]	7.25%	[6],[7]
Effective yield		12.28%	[3],[5]	11.09%	[6],[7]
Investment, Identifier [Axis]: Market Force Information, LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate		11%
Effective yield	[11]			12%
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Preferred Equity
Schedule of Investments [Line Items]
Effective yield	[14]			8%
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield				12.75%
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Effective yield	[24]	8%
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.75%
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6.25%	[3],[4],[5]	6.25%	[6],[7]
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		6%	[3],[5]	6.25%	[6],[7]
Effective yield		11.46%	[3],[5]	9.86%	[6],[7]
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate		7%	[3],[5]	6.25%	[6],[7]
Effective yield		12.52%	[3],[5]	10.66%	[6],[7]
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[3],[4],[5]	6.25%
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[3],[4],[5]	6.25%
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate	[3],[5]	5.25%
Effective yield	[3],[5]	10.64%
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Variable rate	[3],[5]	7.25%
Effective yield	[3],[5]	12.64%
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[6],[7],[34],[35]			7%
Effective yield	[3],[15],[16]	14%
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[6],[7],[34],[35]			7%
Effective yield		14%	[3],[15],[16]	11.73%	[6],[7],[34],[35]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate	[6],[7],[34],[35]			7%
Effective yield		14%	[3],[15],[16]	11.73%	[6],[7],[34],[35]
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		10%		10%
Investment, Identifier [Axis]: NTM Acquisition Corp., Secured Debt
Schedule of Investments [Line Items]
Variable rate	[1],[7]			6.25%
Effective yield	[1],[7]			9.50%
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[6],[7],[36]			8%
Effective yield	[6],[7],[36]			10.85%
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[6],[7]			8%
Effective yield	[6],[7]			12.56%
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield	[6]			20%
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		10%
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		10%		11%
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		7%	[3],[4],[5]	6.25%	[6],[7]
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		7%	[3],[4],[5]	6.25%	[6],[7]
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate		7%	[3],[5]	6.25%	[6],[7]
Effective yield		12.54%	[3],[5]	9.99%	[6],[7]
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Variable rate	[3],[5]	7%
Effective yield	[3],[5]	12.52%
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6.50%	[5]	6.50%	[7]
Effective yield		11.98%	[5]	10.63%	[7]
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12%		12%
Investment, Identifier [Axis]: OVG Business Services, LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate	[6],[7]			6.25%
Effective yield	[6],[7]			10.64%
Investment, Identifier [Axis]: Obra Capital, Inc. (f/k/a Vida Capital, Inc.), Secured Debt
Schedule of Investments [Line Items]
Variable rate	[2]	6%
Effective yield	[2]	11.47%
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate		11%	[5]	11%	[7]
Effective yield		16.48%	[5]	15.13%	[7]
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		11%	[4],[5]	11%	[7]
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		11%	[5]	11%	[7]
Effective yield		16.48%	[5]	15.13%	[7]
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		7.25%	[3],[5],[15],[16],[37]	7.25%	[7],[35],[38]
Effective yield	[3],[5],[15],[16],[37]	12.80%
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		7.25%	[3],[5],[15],[16]	7.25%	[7],[35],[38]
Effective yield		12.88%	[3],[5],[15],[16]	11.80%	[7],[35],[38]
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		5.75%	[3],[4],[5]	5.75%	[6],[7]
Effective yield	[6],[7]			10.26%
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		5.75%	[3],[5],[39]	5.75%	[6],[7],[40]
Effective yield		11.24%	[3],[5],[39]	9.96%	[6],[7],[40]
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Variable rate		5.75%	[3],[5]	5.75%	[6],[7]
Effective yield		11.25%	[3],[5]	9.81%	[6],[7]
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		8%
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		13%
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[3],[4],[5]	6.75%
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[3],[4],[5]	6.75%
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate	[3],[5]	6.75%
Effective yield	[3],[5]	12.12%
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[3],[5]	6.85%
Effective yield	[3],[5]	12.28%
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[3],[5]	6.85%
Effective yield	[3],[5]	12.20%
Investment, Identifier [Axis]: Purge Rite, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[3],[4],[5]	8%
Investment, Identifier [Axis]: Purge Rite, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[3],[5]	8%
Effective yield	[3],[5]	13.70%
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6.75%	[3],[5],[28]	6.75%	[6],[7]
Effective yield	[3],[5],[28]	12.22%
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		6.75%	[3],[5]	6.75%	[6],[7]
Effective yield		12.21%	[3],[5]	10.56%	[6],[7]
Investment, Identifier [Axis]: RM Bidder, LLC, Warrants
Schedule of Investments [Line Items]
Strike price (in dollars per share)				$ 14.28
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate		5.50%	[2],[5]	5.50%	[1],[7]
Effective yield		11.14%	[2],[5]	8.84%	[1],[7]
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[3],[5],[41]	6.50%
Effective yield	[3],[5],[41]	18.47%
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[3],[5]	6.50%
Effective yield	[3],[5]	11.88%
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		12.50%
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.50%		12.50%	[7]
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6.50%	[3],[4],[5]	6.50%	[6],[7]
Effective yield	[6],[7]			10.97%
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		6.50%	[3],[5]	6.50%	[6],[7]
Effective yield		12.16%	[3],[5]	10.32%	[6],[7]
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate		8.50%	[3],[5]	6.50%	[6],[7]
Effective yield		14.16%	[3],[5]	10.32%	[6],[7]
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6%	[3],[5]	6.25%	[6],[7]
Effective yield		13.54%	[3],[5]	13.02%	[6],[7]
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		6%	[3],[5]	6.25%	[6],[7]
Effective yield		13.54%	[3],[5]	13.02%	[6],[7]
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		11.25%
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.47%		9.50%
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Effective yield		12.47%
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2.2
Schedule of Investments [Line Items]
Effective yield				9.50%
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		9.50%
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[6],[7]			6.25%
Effective yield	[6],[7]			11.01%
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[6],[7]			6.25%
Effective yield	[6],[7]			11.01%
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate	[6],[7]			6.25%
Effective yield	[6],[7]			11.01%
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		8%	[3],[4],[5]	7.50%	[6],[7]
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		8%	[3],[5]	7.50%	[6],[7]
Effective yield		13.72%	[3],[5]	11.06%	[6],[7]
Investment, Identifier [Axis]: Savers, Inc., Secured Debt
Schedule of Investments [Line Items]
Variable rate	[1],[7]			5.50%
Effective yield	[1],[7]			10.34%
Investment, Identifier [Axis]: Slick Innovations, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		14%		14%
Investment, Identifier [Axis]: Sonic Systems International, LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate	[6],[7]			7.50%
Effective yield	[6],[7]			11.24%
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6%	[3],[5]	5.75%	[6],[7]
Effective yield	[3],[5]	11.46%
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		6%	[3],[5]	5.75%	[6],[7]
Effective yield		11.70%	[3],[5]	9.69%	[6],[7]
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate	[6]			8.50%
Effective yield		8.50%	[3],[10]	13.27%	[6]
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate				8.50%
Effective yield				13.27%
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		12%	[17]	12%
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12%	[17]	12%
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		13%		13%
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		13%		13%
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		8%
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12%		12%
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt
Schedule of Investments [Line Items]
Variable rate	[1],[7]			1.25%
Effective yield	[1],[7]			11.57%
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[2],[5],[10]	7.15%
Effective yield	[2],[5],[10]	12.53%
Investment, Identifier [Axis]: US Bank Money Market Account
Schedule of Investments [Line Items]
Effective yield				0.005%
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate	[6],[7]			5.75%
Effective yield	[6],[7]			9.82%
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate	[3],[5]	6%
Effective yield	[3],[5]	11.46%
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate	[3],[5]	6.50%
Effective yield	[3],[5]	11.96%
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate	[3],[5]	6.50%
Effective yield	[3],[5]	11.96%
Investment, Identifier [Axis]: UserZoom Technologies, Inc., Secured Debt
Schedule of Investments [Line Items]
Variable rate	[3],[5]	7.50%
Effective yield	[3],[5]	12.99%
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6%	[4],[5],[17]	6%	[7],[13]
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		11.50%		11.50%	[13]
Investment, Identifier [Axis]: Vida Capital, Inc, Secured Debt
Schedule of Investments [Line Items]
Variable rate	[1]			6%
Effective yield	[1]			10.38%
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt
Schedule of Investments [Line Items]
Variable rate	[3],[5]	7%
Effective yield	[3],[5]	12.63%
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		10%		11.50%	[12]
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		10%
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		11.50%
Investment, Identifier [Axis]: Volusion, LLC, Unsecured Convertible Debt
Schedule of Investments [Line Items]
Effective yield		8%		8%
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		7%	[3],[4],[5]	7%	[6],[7]
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		7%	[3],[5]	7%	[6],[7]
Effective yield		12.54%	[3],[5]	10.74%	[6],[7]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6%	[3],[5],[32]	6%	[6],[7]
Effective yield		11.50%	[3],[5],[32]	10.73%	[6],[7]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		6%	[3],[5]	6%	[6],[7]
Effective yield		11.50%	[3],[5]	10.73%	[6],[7]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate		6%	[3],[5]	6%	[6],[7]
Effective yield		11.50%	[3],[5]	10.73%	[6],[7]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Variable rate	[3],[5]	6%
Effective yield	[3],[5]	11.50%
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		6%	[3],[5],[42]	6%	[6],[7]
Effective yield	[3],[5],[42]	11.34%
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		6%	[3],[5]	6%	[6],[7]
Effective yield		11.35%	[3],[5]	8.59%	[6],[7]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate	[3],[5]	6%
Effective yield	[3],[5]	11.35%
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		7%	[3],[5],[43]	7%	[6],[7]
Effective yield	[3],[5],[43]	12.64%
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		7%	[3],[5]	7%	[6],[7]
Effective yield	[3],[5]	12.66%
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 3
Schedule of Investments [Line Items]
Variable rate		7%	[3],[5]	7%	[6],[7]
Effective yield		12.66%	[3],[5]	10.74%	[6],[7]
Investment, Identifier [Axis]: World Micro Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		13%		13%
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		5.25%	[3],[4],[5]	5.25%	[6]
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		5.75%	[3],[5]	5.25%	[6]
Effective yield		11.22%	[3],[5]	10.84%	[6]
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Variable rate		5.75%	[3],[5]	5.25%	[6]
Effective yield		11.25%	[3],[5]	8.63%	[6]
Investment, Identifier [Axis]: YS Garments, LLC, Secured Debt
Schedule of Investments [Line Items]
Variable rate		7.50%	[2],[5]	5.50%	[1],[7]
Effective yield		13%	[2],[5]	9.51%	[1],[7]
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Variable rate		7.25%	[3],[5],[44]	7.25%	[6],[7]
Effective yield		12.71%	[3],[5],[44]	11.67%	[6],[7]
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Variable rate		7.25%	[3],[5],[44]	7.25%	[6],[7],[45]
Effective yield		12.71%	[3],[5],[44]	11.67%	[6],[7],[45]
SOFR | Jackmont Hospitality, Inc.
Schedule of Investments [Line Items]
Variable rate		7%
SOFR | Interface Security Systems, L.L.C
Schedule of Investments [Line Items]
Variable rate		10%
SOFR | Imaging Business Machines, L.L.C.
Schedule of Investments [Line Items]
Variable rate		7%
SOFR | Computer Data Source, LLC
Schedule of Investments [Line Items]
Variable rate		8%
SOFR | Inspire Aesthetics Management, LLC
Schedule of Investments [Line Items]
Variable rate		8%
SOFR | Industrial Services Acquisition, LLC
Schedule of Investments [Line Items]
Variable rate		6.75%
SOFR | RA Outdoors LLC
Schedule of Investments [Line Items]
Variable rate		6.75%
SOFR | Zips Car Wash, LLC
Schedule of Investments [Line Items]
Variable rate		7.25%		7.25%
SOFR | Richardson Sales Solutions
Schedule of Investments [Line Items]
Variable rate		6.50%
SOFR | Winter Services LLC
Schedule of Investments [Line Items]
Variable rate		7%
SOFR | Watterson Brands, LLC
Schedule of Investments [Line Items]
Variable rate		6%
SOFR | JTI Electrical & Mechanical, LLC
Schedule of Investments [Line Items]
Variable rate		6%
SOFR | West Star Aviation Acquisition, LLC
Schedule of Investments [Line Items]
Variable rate		6%
SOFR | Paragon Healthcare, Inc.
Schedule of Investments [Line Items]
Variable rate		5.75%		5.75%
SOFR | Channel Partners Intermediateco, LLC
Schedule of Investments [Line Items]
Variable rate		7%		6.25%
SOFR | PTL US Bidco, Inc
Schedule of Investments [Line Items]
Variable rate		7.25%
SOFR | Channel Partners Intermediateco, LLC
Schedule of Investments [Line Items]
Variable rate				6.25%
SOFR | IG Parent Corporation
Schedule of Investments [Line Items]
Variable rate				5.75%
SOFR | NWN Corporation
Schedule of Investments [Line Items]
Variable rate				8%
LIBOR | Interface Security Systems, L.L.C
Schedule of Investments [Line Items]
Variable rate				10%
LIBOR | Computer Data Source, LLC
Schedule of Investments [Line Items]
Variable rate				8%
LIBOR | Cadence Aerospace LLC
Schedule of Investments [Line Items]
Variable rate				6.50%
LIBOR | Mako Steel, LP
Schedule of Investments [Line Items]
Variable rate				7.25%
Minimum
Schedule of Investments [Line Items]
Variable rate		0.10%		0.10%
Minimum | LIBOR or SOFR
Schedule of Investments [Line Items]
Variable rate		0.75%
Minimum | LIBOR
Schedule of Investments [Line Items]
Variable rate				0.50%
Maximum
Schedule of Investments [Line Items]
Variable rate		0.43%		0.26%
Maximum | LIBOR or SOFR
Schedule of Investments [Line Items]
Variable rate		2%
Maximum | LIBOR
Schedule of Investments [Line Items]
Variable rate				2%
Weighted Average | LIBOR or SOFR
Schedule of Investments [Line Items]
Floor rate		1.17%
Weighted Average | LIBOR
Schedule of Investments [Line Items]
Floor rate				1.04%
[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 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, 95% of these floating rate loans (based on the par amount) contain LIBOR or Term SOFR ("SOFR") floors which range between 0.75% and 2.00%, with a weighted-average floor of 1.17%. Private Loan portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Private Loan portfolio investments. 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 LIBOR floors which range between 0.50% and 2.00%, with a weighted-average LIBOR floor of 1.04%. 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 2.50%. Non-accrual and non-income producing debt investment. Non-accrual and non-income producing debt investment. 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. Income producing through dividends or distributions. 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. The security has an effective contractual interest rate of 2.00% PIK + LIBOR+6.50%, Floor 1.00%,but the issuer may, in its discretion, elect to pay the PIK interest in cash. The rate presented represents the effective current yield based on actual payments received during the period. 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, 2022, borrowings under the loan facility bore interest at SOFR+6.25% (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, 2022. As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+6.25% (Floor 1.00%). Due to an amendment and subsequent funding during the quarter, the term loan facility has different floating rate reset dates. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022. 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, 2022, borrowings under the loan facility bore interest at LIBOR+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, 2022. Income producing through dividends or distributions. As of December 31, 2022, 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, 2022. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.00% (Floor 1.50%). 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. 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, 2022, borrowings under the loan facility bore interest at LIBOR+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, 2022. 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, 2022, borrowings under the loan facility bore interest at LIBOR+7.25% (Floor 0.75%). 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, 2022. Effective yield as of December 31, 2022 was approximately 0.005% on the US Bank Money Market Account. 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. As of December 31, 2022, 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, 2022. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.25% (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. Portfolio company headquarters are located outside of the United States. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+5.75% (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. As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+5.75% (Floor 1.00%). Delayed draw term loan 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, 2022. 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. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.00% (Floor 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. As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+7.25% (Floor 1.00%). Each new draw on the delayed draw term loan 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, 2022.

ORGANIZATION AND BASIS OF PRESE

ORGANIZATION AND BASIS OF PRESENTATION	12 Months Ended
	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION AND BASIS OF PRESENTATION	ORGANIZATION AND BASIS OF PRESENTATION 1. Organization MSC Income Fund, Inc. (“MSIF” or, together with its consolidated subsidiaries, “MSC Income Fund” or the “Company”) is a principal investment firm primarily focused on providing debt capital to middle market (“Middle Market”) companies and customized debt and equity financing to lower middle market (“LMM”) companies. MSC Income Fund’s portfolio investments are typically made to support leveraged buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in a variety of industry sectors. MSC Income Fund seeks to partner with private equity funds in its Private Loan (as defined below) and Middle Market investment strategies. MSC Income Fund invests primarily in secured debt investments of Middle Market companies generally headquartered in the United States and in secured debt investments, equity investments, warrants and other securities of LMM companies based in the United States. MSC Income Fund seeks to partner with entrepreneurs, business owners and management teams and generally provides “one-stop” financing alternatives within its LMM investment strategy. MSIF was formed in November 2011 to operate as an externally managed business development company (“BDC”) under the Investment Company Act of 1940, as amended (the “1940 Act”). MSIF 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, MSIF 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. On October 28, 2020, MSIF’s stockholders approved the appointment of MSC Adviser I, LLC (the “Adviser”), which is wholly-owned by Main Street Capital Corporation (“Main Street”), a New York Stock Exchange listed BDC, as MSIF’s investment adviser and administrator under an Investment Advisory and Administrative Services Agreement dated October 30, 2020 (the “Investment Advisory Agreement”). In such role, the Adviser has the responsibility to manage the business of MSC Income Fund, including the responsibility to identify, evaluate, negotiate and structure prospective investments, make investment and portfolio management decisions, monitor MSC Income Fund’s investment portfolio and provide ongoing administrative services. MSIF 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 MSIF to hold equity investments in portfolio companies which are “pass-through” entities for tax purposes. MSIF 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 “MSC Income Fund” refer to MSIF and its consolidated subsidiaries, which include the Taxable Subsidiaries and the Structured Subsidiaries. 2. Basis of Presentation MSC Income Fund’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, MSC Income Fund’s consolidated financial statements include the accounts of MSIF and its consolidated subsidiaries. The Investment Portfolio, as used herein, refers to all of MSC Income Fund’s investments in Private Loan portfolio companies, investments in LMM portfolio companies, investments in Middle Market portfolio companies and Other Portfolio investments (see Note C — Fair Value Hierarchy for Investments — Portfolio Composition — Investment Portfolio Composition for additional discussion of MSC Income Fund’s Investment Portfolio and definitions for the defined terms Private Loan and Other Portfolio). MSC Income Fund’s results of operations and cash flows for the years ended December 31, 2023, 2022 and 2021 and financial position as of December 31, 2023 and 2022, are presented on a consolidated basis. The effects of all intercompany transactions between MSIF and its consolidated subsidiaries have been eliminated in consolidation. Principles of Consolidation Under ASC 946, MSC Income Fund is precluded from consolidating other entities in which MSC Income Fund 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 MSC Income Fund holds a controlling interest in an operating company that provides all or substantially all of its services directly to MSC Income Fund. Accordingly, as noted above, MSC Income Fund’s consolidated financial statements include the financial position and operating results for the Taxable Subsidiaries and the Structured Subsidiaries. MSC Income Fund has determined that none of its portfolio investments qualify for this exception. Therefore, MSC Income Fund’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 MSC Income Fund 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 MSC Income Fund 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 MSC Income Fund 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, MSC Income Fund has excluded consideration of any voting securities or board appointment rights held by Main Street and third-party investment funds advised by the Adviser.

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 1. Valuation of the Investment Portfolio MSC Income Fund accounts for its Investment Portfolio at fair value. As a result, MSC Income Fund 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 MSC Income Fund 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. MSC Income Fund’s portfolio strategy calls for it to invest primarily in debt securities issued by Middle Market companies and illiquid debt and equity securities issued by privately held, LMM companies. The Middle Market companies in which MSC Income Fund invests are generally larger in size than the LMM companies and their debt securities can be more liquid than the debt securities issued by LMM companies. MSC Income Fund categorizes some of its investments in Middle Market companies and LMM companies as Private Loan portfolio investments, which are primarily debt securities in privately held companies that have primarily been originated directly by our Adviser or, to a lesser extent, through our Adviser’s 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, MSC Income Fund’s Private Loan investments are typically made to support 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 generally consistent with the size of companies MSC Income Fund invests in through its Middle Market portfolio and LMM portfolio. MSC Income Fund’s portfolio also includes Other Portfolio investments which primarily consist of investments that are not consistent with the typical profiles for its Private Loan, LMM or Middle Market portfolio investments, including investments which may be managed by third parties. MSC Income Fund’s portfolio investments may be subject to restrictions on resale. Private Loan investments may include investments which have no established market or have established markets that are not active, while LMM investments and Other Portfolio investments generally have no established trading market. Middle Market portfolio investments generally have established markets that are not active. MSC Income Fund 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. MSC Income Fund’s valuation policies and processes are intended to provide a consistent basis for determining the fair value of MSC Income Fund’s Investment Portfolio. 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, MSC Income Fund 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 model (“Yield-to-Maturity”) valuation method. For LMM portfolio investments, MSC Income Fund 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 valuation method for its LMM debt investments. For Middle Market portfolio investments in debt securities for which it has determined that third-party quotes or other independent prices are available, MSC Income Fund primarily uses quoted prices in the valuation process. MSC Income Fund 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, MSC Income Fund 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 MSC Income Fund’s portfolio investments estimate the value of the investment as if MSC Income Fund was to sell, or exit, the investment as of the measurement date. These valuation approaches consider the value associated with MSC Income Fund’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 MSC Income Fund 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 MSC Income Fund 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, MSC Income Fund 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, MSC Income Fund analyzes various factors including the portfolio company’s historical and projected financial results. Due to SEC deadlines for MSC Income Fund’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, MSC Income Fund also analyzes the impact of exposure to litigation, loss of customers or other contingencies. After determining the appropriate enterprise value, MSC Income Fund 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, MSC Income Fund assumes the loans are paid-off at the principal amount in a change in control transaction and are not assumed by the buyer, which MSC Income Fund believes is consistent with its past transaction history and standard industry practices. Under the Yield-to-Maturity valuation method, MSC Income Fund 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. MSC Income Fund’s estimate of the expected repayment date of its debt securities is generally the maturity date of the instrument, as MSC Income Fund 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. MSC Income Fund will generally use the value determined by the Yield-to-Maturity analysis as the fair value for that security; however, because of MSC Income Fund’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 MSC Income Fund 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, MSC Income Fund 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, MSC Income Fund 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 MSC Income Fund that would affect that fund’s NAV, including, but not limited to, fair values for individual investments held by the fund if MSC Income Fund holds the same investment or for a publicly traded investment. In addition, in determining the fair value of the investment, MSC Income Fund considers whether adjustments to the NAV are necessary in certain circumstances, based on the analysis of any restrictions on redemption of MSC Income Fund’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 MSC Income Fund’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, MSC Income Fund 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 Private Loan portfolio companies, MSC Income Fund, 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 and recommendations and an assurance certification regarding MSC Income Fund’s determinations of the fair value of its Private Loan portfolio company investments. The Financial Advisory Firm is generally consulted relative to MSC Income Fund’s investments in each Private Loan portfolio company at least once every calendar year, and for MSC Income Fund’s investments in new Private Loan portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, MSC Income Fund 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 MSC Income Fund’s investment in a Private Loan portfolio company is determined to be insignificant relative to the total Investment Portfolio. MSC Income Fund 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 55 and 51 Private Loan portfolio companies during the years ended December 31, 2023 and 2022, respectively, representing 79% and 83% of the total Private Loan portfolio at fair value as of December 31, 2023 and 2022, respectively. Excluding its investments in Private Loan portfolio companies that, as of December 31, 2023 and 2022, as applicable, 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, 90% and 94% of the Private Loan portfolio at fair value was reviewed and certified by the Financial Advisory Firm for the years ended December 31, 2023 and 2022, respectively. For valuation purposes, all of MSC Income Fund’s Private Loan portfolio investments are either non-control or affiliate investments. For Private Loan portfolio investments for which it has determined that third-party quotes or other independent pricing are not available or appropriate, MSC Income Fund 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 LMM portfolio companies, MSC Income Fund, among other things, consults with the Financial Advisory Firm. The Financial Advisory Firm analyzes and provides observations, recommendations and an assurance certification regarding MSC Income Fund’s determinations of the fair value of its LMM portfolio company investments. The Financial Advisory Firm is generally consulted relative to MSC Income Fund’s investments in each LMM portfolio company at least once every calendar year, and for MSC Income Fund’s investments in new LMM portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, MSC Income Fund 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 MSC Income Fund’s investment in a LMM portfolio company is determined to be insignificant relative to the total Investment Portfolio. MSC Income Fund consulted with and received an assurance certification from the Financial Advisory Firm in arriving at MSC Income Fund’s determination of fair value for its investments in a total of 46 and 44 LMM portfolio companies during the years ended December 31, 2023 and 2022, respectively, representing 95% and 97% of the total LMM portfolio at fair value as of December 31, 2023 and 2022, respectively. Excluding its investments in LMM portfolio companies that, as of December 31, 2023 and 2022, as applicable, 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, over 99% of the LMM portfolio at fair value was reviewed and certified by the Financial Advisory Firm for both of the years ended December 31, 2023 and December 31, 2022. For valuation purposes, all of MSC Income Fund’s Middle Market portfolio investments are non-control investments. To the extent sufficient observable inputs are available to determine fair value, MSC Income Fund 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, MSC Income Fund 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. MSC Income Fund 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 (97% and 91% as of December 31, 2023 and 2022, respectively) of the Middle Market portfolio investments (i) are valued using third-party quotes or other independent pricing services or (ii) MSC Income Fund has consulted with and received an assurance certification from the Financial Advisory Firm within the last twelve months. For valuation purposes, all of MSC Income Fund’s Other Portfolio investments are non-control, affiliate or control investments. MSC Income Fund’s Other Portfolio investments comprised 2.3% and 2.7% of MSC Income Fund’s Investment Portfolio at fair value as of December 31, 2023 and 2022, 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, MSC Income Fund generally determines the fair value of these investments using the NAV valuation method. Due to the inherent uncertainty in the valuation process, MSC Income Fund’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. MSC Income Fund determines the fair value of each individual investment and records changes in fair value as unrealized appreciation or depreciation. MSC Income Fund uses an internally developed portfolio investment rating system in connection with its investment oversight, portfolio management and analysis and investment valuation procedures for its Private Loan, LMM and Middle Market portfolio companies. This system takes into account both quantitative and qualitative factors of each Private Loan, LMM 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. MSC Income Fund’s Board of Directors has approved policies and procedures pursuant to Rule 2a-5 (the “Valuation Procedures”) and has designated the Adviser, led by a group of Main Street’s and the Adviser’s executive officers, to serve as the Board of Directors’ valuation designee. MSC Income Fund believes its Investment Portfolio as of December 31, 2023 and 2022 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 MSC Income Fund pursuant to valuation policies and procedures approved and overseen by MSC Income Fund’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 MSC Income Fund’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 MSC Income Fund’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 December 31, 2023, the Company had $20.8 million of cash equivalents invested in AAA-rated money market funds. These highly liquid, short-term investments are included in the Consolidated Schedule of Investments. At December 31, 2023 and December 31, 2022, cash balances totaling $9.0 million and $11.7 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 MSC Income Fund 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. MSC Income Fund evaluates accrued interest and dividend income periodically for collectability. When a loan or debt security becomes 90 days or more past due, and if MSC Income Fund otherwise does not expect the debtor to be able to service its debt obligation, MSC Income Fund 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, MSC Income Fund removes it from non-accrual status. As of December 31, 2023, investments on non-accrual status comprised 1.1% of MSC Income Fund’s total Investment Portfolio at fair value and 4.0% at cost. As of December 31, 2022, investments on non-accrual status comprised 0.8% of MSC Income Fund’s total Investment Portfolio at fair value and 4.8% at cost. Interest income from investments in the “equity” class of security of collateralized loan obligation (“CLO”) funds (typically subordinated notes) is recorded based upon an estimation of an effective yield to expected maturity utilizing estimated projected cash flows in accordance with ASC 325-40, Beneficial Interests in Securitized Financial Assets . MSC Income Fund monitors the expected cash inflows from its investment in a CLO, including the expected residual payments, and the effective yield is determined and updated periodically. MSC Income Fund holds certain debt and preferred equity instruments in its Investment Portfolio that contain payment-in-kind (“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.7. — 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 MSC Income Fund may not have collected the PIK interest and cumulative dividends in cash. MSC Income Fund 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 years ended December 31, 2023, 2022 and 2021, (i) 3.8%, 2.5% and 2.3%, respectively, of MSC Income Fund’s total investment income was attributable to PIK interest income not paid currently in cash and (ii) 0.1%, 0.6% and 0.3%, respectively, of MSC Income Fund’s total investment income was attributable to cumulative dividend income not paid currently in cash. MSC Income Fund 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. Fees received in connection with debt financing transactions are generally deferred and accreted into income over the life of the financing. A presentation of total investment income MSC Income Fund received from its Investment Portfolio in each of the periods presented is as follows: Year Ended 2023 2022 2021 (dollars in thousands) Interest, fee and dividend income: Interest income $ 116,976 $ 90,811 $ 72,536 Dividend income 11,255 9,442 15,880 Fee income 3,155 3,512 1,712 Total interest, fee and dividend income $ 131,386 $ 103,765 $ 90,128 5. Deferred Financing Costs Deferred financing costs include commitment fees and other direct costs incurred in connection with arranging MSC Income Fund’s borrowings. These costs were incurred in connection with MSC Income Fund’s multi-year revolving Credit Facilities (as defined below in Note E — Debt ) and have been capitalized as an asset and reflected in the Consolidated Balance Sheets as Deferred financing costs. Deferred financing costs incurred in connection with the Series A Notes (as defined below in Note E — Debt ) are a direct deduction from the principal amount outstanding. 6. Unearned Income — Debt Origination Fees and Original Issue Discount and Discounts / Premiums to Par Value MSC Income Fund 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, MSC Income Fund 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 MSC Income Fund 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. MSC Income Fund 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, MSC Income Fund 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, MSC Income Fund 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. To maintain RIC tax treatment (as discussed in Note B.7. — 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 MSC Income Fund may not have collected the interest income. For the years ended December 31, 2023, 2022 and 2021, 2.5%, 2.5%, and 5.7%, respectively, of MSC Income Fund’s total investment income was attributable to interest income from the accretion of discounts associated with debt investments, net of any premium amortization. 7. Income Taxes MSIF has elected to be treated for U.S. federal income tax purposes as a RIC. MSIF’s taxable income includes the taxable income generated by MSIF and certain of its subsidiaries, including the Structured Subsidiaries, which are treated as disregarded entities for tax purposes. As a RIC, MSIF generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that MSIF distributes to its stockholders. MSIF 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 MSC Income Fund. The Taxable Subsidiaries permit MSC Income Fund 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 MSC Income Fund for U.S. GAAP financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries are included in MSC Income Fund’s consolidated financial statements as portfolio investments and recorded at fair value. The Tax

FAIR VALUE HIERARCHY FOR INVEST

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION	12 Months Ended
	Dec. 31, 2023
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. MSC Income Fund accounts for its investments at fair value. Fair Value Hierarchy In accordance with ASC 820, MSC Income Fund 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 MSC Income Fund’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 MSC Income Fund 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 December 31, 2023 and 2022, MSC Income Fund’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 MSC Income Fund’s Private Loan portfolio investments were categorized as Level 3 as of December 31, 2023 and 2022. As of December 31, 2023 and 2022, all of MSC Income Fund’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 MSC Income Fund’s LMM portfolio investments were categorized as Level 3 as of December 31, 2023 and 2022. As of December 31, 2023 and 2022, MSC Income Fund’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 MSC Income Fund’s Middle Market portfolio investments were categorized as Level 3 as of December 31, 2023 and 2022. As of December 31, 2023 and 2022, MSC Income Fund’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 MSC Income Fund’s Other Portfolio investments were categorized as Level 3 as of December 31, 2023 and 2022. As of 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 MSC Income Fund’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 MSC Income Fund’s Private Loan, LMM and Middle Market 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 MSC Income Fund’s Level 3 portfolio investments as of December 31, 2023 and 2022: Type of Fair Value as of December 31, 2023 (in thousands) Valuation Technique Significant Range(3) Weighted Average(3) Median(3) Equity investments $ 254,770 Discounted cash flow WACC 10.9% - 22.5% 14.4 % 15.5 % Market comparable / Enterprise value EBITDA multiple (1) 4.9x - 9.2x (2) 7.3x 6.5x Debt investments $ 777,003 Discounted cash flow Risk adjusted discount factor (4) 9.8% - 16.8% (2) 13.1 % 12.8 % Expected principal recovery percentage 0.6% - 100.0% 99.6 % 100.0 % Debt investments $ 61,122 Market approach Third-party quote 4.5 - 99.2 85.0 89.5 Total Level 3 investments $ 1,092,895 _____________________________ (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 8.0% - 27.3%. (3) Does not include investments for which the valuation technique does not include the use of the applicable fair value input. (4) Discount rate includes the effect of the standard SOFR base rate, as applicable. Type of Fair Value as of December 31, 2022 (in thousands) Valuation Technique Significant Range(3) Weighted Median(3) Equity investments $ 215,861 Discounted cash flow WACC 10.4% - 22.5% 14.3 % 15.7 % Market comparable / Enterprise value EBITDA multiple (1) 4.3x - 8.5x (2) 7.2x 6.4x Debt investments $ 743,887 Discounted cash flow Risk adjusted discount factor (4) 8.5% - 18.2% (2) 13.0 % 12.4 % Expected principal recovery percentage 0.7% - 100.0% 99.1 % 100.0 % Debt investments $ 108,395 Market approach Third-party quote 5.6 - 98.5 85.7 90.0 Total Level 3 investments $ 1,068,143 _____________________________ (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 6.5% - 43.3%. (3) Does not include investments for which the valuation technique does not include the use of the applicable fair value input. (4) Discount rate includes the effect of the standard LIBOR and SOFR base rate, as applicable. The following tables provide a summary of changes in fair value of MSC Income Fund’s Level 3 portfolio investments for the years ended December 31, 2023 and 2022 (amounts in thousands): Type of Fair Value as of December 31, Transfers Redemptions/ New Net Net Other(1) Fair Value as of December 31, 2023 Debt $ 852,282 $ — $ (253,517) $ 230,663 $ 33,078 $ (5,467) $ (18,914) $ 838,125 Equity 214,687 — (15,329) 16,377 923 17,352 20,019 254,029 Equity Warrant 1,174 — (284) 523 284 149 (1,105) 741 $ 1,068,143 $ — $ (269,130) $ 247,563 $ 34,285 $ 12,034 $ — $ 1,092,895 _____________________________ (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 Fair Value as of December 31, 2021 Transfers Redemptions/ New Net Net Other(1) Fair Value as of December 31, Debt $ 879,970 $ — $ (205,481) $ 211,631 $ 10,645 $ (42,747) $ (1,736) $ 852,282 Equity 196,374 — (22,234) 7,728 (7,037) 38,120 1,736 214,687 Equity Warrant 792 — (45) 1,111 (305) (379) — 1,174 $ 1,077,136 $ — $ (227,760) $ 220,470 $ 3,303 $ (5,006) $ — $ 1,068,143 _____________________________ (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 December 31, 2023 and 2022, MSC Income Fund’s investments at fair value were categorized as follows in the fair value hierarchy for ASC 820 purposes: Fair Value Measurements (in thousands) At December 31, 2023 Fair Value Quoted Prices in Significant Other Significant Private Loan portfolio investments $ 595,326 $ — $ — $ 595,326 LMM portfolio investments 386,956 — — 386,956 Middle Market portfolio investments 85,990 — — 85,990 Other Portfolio investments 24,623 — — 24,623 Total investments $ 1,092,895 $ — $ — $ 1,092,895 Fair Value Measurements (in thousands) At December 31, 2022 Fair Value Quoted Prices in Significant Other Significant Private Loan portfolio investments $ 559,763 $ — $ — $ 559,763 LMM portfolio investments 352,661 — — 352,661 Middle Market portfolio investments 126,744 — — 126,744 Other Portfolio investments 28,975 — — 28,975 Total investments $ 1,068,143 $ — $ — $ 1,068,143 Investment Portfolio Composition MSC Income Fund’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. MSC Income Fund seeks to achieve its investment objective through its Private Loan, LMM and Middle Market investment strategies. MSC Income Fund’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 $1 million to $20 million. MSC Income Fund’s Private Loan investments primarily consist of debt securities that have primarily been originated directly by the Adviser or, to a lesser extent, through the Adviser’s 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 support a company owned by or in the process of being acquired by a private equity sponsor. MSC Income Fund’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 MSC Income Fund’s LMM investment strategy is focused on investments in secured debt, equity warrants and direct equity investments in privately held, LMM companies based in the United States. MSC Income Fund’s LMM portfolio companies generally have annual revenues between $10 million and $150 million, and its LMM investments generally range in size from $1 million to $20 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 MSC Income Fund’s Middle Market investment strategy is focused on investments in syndicated loans to or debt securities in Middle Market companies, which MSC Income Fund defines as companies with annual revenues between $150 million and $1.5 billion, and its Middle Market investments generally range in size from $1 million to $20 million. MSC Income Fund’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 MSC Income Fund’s other portfolio (“Other Portfolio”) investments primarily consist of investments that are not consistent with the typical profiles for its Private Loan, LMM or Middle Market portfolio investments, including investments which may be managed by third parties. In the Other Portfolio, MSC Income Fund 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, MSC Income Fund generally receives distributions related to the assets held by the portfolio company. Those assets are typically expected to be liquidated over a five 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 years ended December 31, 2023, 2022 and 2021, MSC Income Fund 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 MSC Income Fund’s investments in the Private Loan, LMM and Middle Market portfolios as of December 31, 2023 and 2022 (this information excludes Other Portfolio investments, which are discussed further below): As of December 31, 2023 Private Loan LMM (a) Middle Market (dollars in millions) Number of portfolio companies 78 50 16 Fair value $ 595.3 $ 387.0 $ 86.0 Cost $ 586.4 $ 315.7 $ 114.7 Debt investments as a % of portfolio (at cost) 94.1 % 70.2 % 93.1 % Equity investments as a % of portfolio (at cost) 5.9 % 29.8 % 6.9 % % of debt investments at cost secured by first priority lien 100.0 % 99.9 % 100.0 % Weighted-average annual effective yield (b) 13.1 % 13.0 % 13.0 % Average EBITDA (c) $ 30.5 $ 8.8 $ 74.2 _____________________________ (a) At December 31, 2023, MSC Income Fund had equity ownership in all of its LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was 9%. (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 MSC Income Fund’s debt portfolio as of December 31, 2023 including debt investments on non-accrual status was 12.6% for its Private Loan portfolio, 13.0% for its LMM portfolio and 9.9% for its Middle Market portfolio. The weighted-average annual effective yield is not reflective of what an investor in shares of MSC Income Fund’s common stock will realize on its investment because it does not reflect MSC Income Fund’s utilization of debt capital in its capital structure, MSC Income Fund’s expenses or any sales load paid by an investor. (c) The average EBITDA is calculated using a weighted-average for the Private Loan and Middle Market portfolios and a simple average for the LMM portfolio. These calculations exclude one Private Loan portfolio company, as EBITDA is not a meaningful valuation metric for MSC Income Fund’s investment in this portfolio company and those portfolio companies whose primary purpose is to own real estate. As of December 31, 2022 Private Loan LMM (a) Middle Market (dollars in millions) Number of portfolio companies 70 48 21 Fair value $ 559.8 $ 352.7 $ 126.7 Cost $ 563.0 $ 312.5 $ 159.7 Debt investments as a % of portfolio (at cost) 96.2 % 73.2 % 95.0 % Equity investments as a % of portfolio (at cost) 3.8 % 26.8 % 5.0 % % of debt investments at cost secured by first priority lien 99.4 % 99.9 % 98.5 % Weighted-average annual effective yield (b) 11.8 % 12.1 % 11.3 % Average EBITDA (c) $ 36.8 $ 8.6 $ 79.2 _____________________________ (a) At December 31, 2022, MSC Income Fund had equity ownership in all of its LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was 9%. (b) The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2022, 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 MSC Income Fund’s debt portfolio as of December 31, 2022 including debt investments on non-accrual status was 11.4% for its Private Loan portfolio, 11.7% for its LMM portfolio and 9.7% for its Middle Market portfolio. The weighted-average annual effective yield is not reflective of what an investor in shares of MSC Income Fund’s common stock will realize on its investment because it does not reflect MSC Income Fund’s utilization of debt capital in its capital structure, MSC Income Fund’s expenses or any sales load paid by an investor. (c) The average EBITDA is calculated using a weighted-average for the Private Loan and Middle Market portfolios and a simple average for the LMM portfolio. These calculations exclude certain portfolio companies, including one Private Loan portfolio company, as EBITDA is not a meaningful valuation metric for MSC Income Fund’s investment in this portfolio company, and those portfolio companies whose primary purpose is to own real estate. For the years ended December 31, 2023 and 2022, MSC Income Fund achieved a total return on investments of 13.6% and 9.1%, respectively. 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. MSC Income Fund’s total return on investments is not reflective of what an investor in shares of MSC Income Fund’s common stock will realize on its investment because it does not reflect MSC Income Fund’s utilization of debt capital in its capital structure, MSC Income Fund’s expenses or any sales load paid by an investor. As of December 31, 2023, MSC Income Fund had Other Portfolio investments in four entities, collectively totaling $24.6 million in fair value and $21.5 million in cost basis and which comprised 2.3% and 2.1% of MSC Income Fund’s Investment Portfolio at fair value and cost, respectively. As of December 31, 2022, MSC Income Fund had Other Portfolio investments in four entities, collectively totaling $29.0 million in fair value and $24.7 million in cost basis and which comprised 2.7% and 2.3% of MSC Income Fund’s Investment Portfolio at fair value and cost, respectively. The following tables summarize the composition of MSC Income Fund’s total combined Private Loan, LMM and Middle Market portfolio investments at cost and fair value by type of investment as a percentage of the total combined Private Loan, LMM and Middle Market portfolio investments, as of December 31, 2023 and 2022 (this information excludes Other Portfolio investments). Cost: December 31, 2023 December 31, 2022 First lien debt 86.5 % 88.5 % Equity 13.3 10.8 Second lien debt — 0.3 Equity warrants 0.2 0.2 Other — 0.2 100.0 % 100.0 % Fair Value: December 31, 2023 December 31, 2022 First lien debt 78.4 % 81.4 % Equity 21.5 17.9 Second lien debt — 0.3 Equity warrants 0.1 0.1 Other — 0.3 100.0 % 100.0 % The following tables summarize the composition of MSC Income Fund’s total combined Private Loan, LMM 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 Private Loan, LMM and Middle Market portfolio investments, as of December 31, 2023 and 2022 (this information excludes Other Portfolio investments). The geographic composition is determined by the location of the corporate headquarters of the portfolio company. Cost: December 31, 2023 December 31, 2022 Southwest 23.8 % 22.2 % Northeast 21.9 20.3 Southeast 17.8 17.8 Midwest 17.6 15.1 West 17.0 22.9 Canada 0.8 0.8 Other Non-United States 1.1 0.9 100.0 % 100.0 % Fair Value: December 31, 2023 December 31, 2022 Southwest 26.8 % 25.3 % Northeast 21.6 20.3 Midwest 18.3 15.9 West 16.4 21.1 Southeast 15.0 15.2 Canada 0.8 1.2 Other Non-United States 1.1 1.0 100.0 % 100.0 % MSC Income Fund’s Private Loan, LMM and Middle Market portfolio investments are in companies conducting business in a variety of industries. The following tables summarize the composition of MSC Income Fund’s total combined Private Loan, LMM and Middle Market portfolio investments by industry at cost and fair value as of December 31, 2023 and 2022 (this information excludes Other Portfolio investments). Cost: December 31, 2023 December 31, 2022 Internet Software & Services 8.8 % 7.8 % Commercial Services & Supplies 8.5 11.3 Health Care Providers & Services 6.5 4.9 Machinery 6.0 5.9 Professional Services 5.7 3.7 Diversified Consumer Services 5.4 4.7 IT Services 5.2 4.9 Distributors 4.4 5.0 Containers & Packaging 4.3 3.4 Leisure Equipment & Products 3.7 3.7 Textiles, Apparel & Luxury Goods 3.1 2.0 Computers & Peripherals 2.9 1.9 Specialty Retail 2.7 4.0 Communications Equipment 2.7 3.5 Aerospace & Defense 2.6 3.6 Media 2.5 2.4 Construction & Engineering 2.5 2.5 Electrical Equipment 2.2 1.8 Building Products 2.1 2.4 Hotels, Restaurants & Leisure 2.1 2.0 Diversified Financial Services 2.1 1.7 Household Products 2.0 1.5 Internet & Catalog Retail 1.6 1.3 Food & Staples Retailing 1.5 0.9 Software 1.4 1.3 Health Care Equipment & Supplies 1.3 1.2 Food Products 0.9 1.1 Energy Equipment & Services 0.5 1.2 Diversified Telecommunication Services 0.1 3.4 Other (1) 4.7 5.0 100.0 % 100.0 % _____________________________ (1) Includes various industries with each industry individually less than 1.0% of the total combined Private Loan, LMM and Middle Market portfolio investments at each date. Fair Value: December 31, 2023 December 31, 2022 Machinery 7.4 % 7.5 % Commercial Services & Supplies 7.3 10.3 Internet Software & Services 7.3 6.7 Diversified Consumer Services 6.5 5.9 Health Care Providers & Services 6.0 4.6 Professional Services 5.5 2.8 IT Services 5.0 4.7 Distributors 4.6 5.5 Computers & Peripherals 4.6 2.8 Containers & Packaging 4.6 3.8 Leisure Equipment & Products 3.3 3.7 Construction & Engineering 3.1 2.9 Textiles, Apparel & Luxury Goods 2.9 2.0 Specialty Retail 2.7 3.1 Media 2.6 2.6 Aerospace & Defense 2.5 3.5 Electrical Equipment 2.3 1.9 Construction Materials 2.2 2.1 Diversified Financial Services 2.0 1.8 Building Products 1.9 2.5 Household Products 1.9 1.3 Software 1.7 1.7 Air Freight & Logistics 1.6 1.2 Hotels, Restaurants & Leisure 1.6 1.5 Internet & Catalog Retail 1.5 1.9 Food & Staples Retailing 1.2 0.8 Communications Equipment 1.1 1.3 Energy Equipment & Services 0.3 1.0 Diversified Telecommunication Services 0.1 3.6 Other (1) 4.7 5.0 100.0 % 100.0 % _____________________________ (1) Includes various industries with each industry individually less than 1.0% of the total combined Private Loan, LMM and Middle Market portfolio investments at each date. At December 31, 2023 and 2022, MSC Income Fund 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, MSC Income Fund 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 MSC Income Fund must utilize to determine if any of MSC Income Fund’s Control Investments (as defined in Note A — Organization and Basis of Presentation , including those unconsolidated portfolio companies defined as Control Investments in which MSC Income Fund 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 MSC Income Fund’s investment in the Control Investment by the value of MSC Income Fund’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 value of MSC Income Fund’s change in net assets resulting from operations for the same period. Rules 3-09 and 4-08(g) of Regulation S-X require MSC Income Fund to include (1) separate audited financial statements of an unconsolidated majority-owned subsidiary (Control Investments in which MSC Income Fund owns greater than 50% of the voting securities) in an annual report and (2) summarized financial information of a Control Investment in a quarterly report, respectively, if certain thresholds of the investment or income tests are exceeded and the unconsolidated portfolio company qualifies as a significant subsidiary. As of December 31, 2023, 2022 and 2021, MSC Income Fund had no single investment that qualified as a significant subsidiary under either the investment or income tests.

INVESTMENT IN SIGNAL PEAK CLO 7

INVESTMENT IN SIGNAL PEAK CLO 7, LTD.	12 Months Ended
	Dec. 31, 2023
Equity Method Investments and Joint Ventures [Abstract]
INVESTMENT IN SIGNAL PEAK CLO 7, LTD.	INVESTMENT IN SIGNAL PEAK CLO 7, LTD. On December 16, 2021, MSC Income Fund sold its entire position in the Signal Peak CLO 7, Ltd., a limited liability company which invested primarily in broadly-syndicated loans, for $17.4 million, resulting in a realized loss of $3.7 million. For the year December 31, 2021, MSC Income Fund recognized $2.2 million of interest income in respect of its investment in Signal Peak CLO.

DEBT

DEBT	12 Months Ended
	Dec. 31, 2023
Debt Disclosure [Abstract]
DEBT	DEBT Summary of MSC Income Fund’s debt as of December 31, 2023 is as follows: Outstanding Balance Unamortized Debt Issuance Costs (1) Recorded Value Estimated Fair Value (2) (dollars in thousands) SPV Facility $ 203,688 $ — $ 203,688 $ 203,688 Series A Notes 150,000 (845) 149,155 141,531 Corporate Facility 132,000 — 132,000 132,000 Total Debt $ 485,688 $ (845) $ 484,843 $ 477,219 _____________________________ (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 Series A Notes are reflected as a contra-liability to the Series A Notes on the Consolidated Balance Sheets. (2) Estimated fair value for outstanding debt if MSC Income Fund had adopted the fair value option under ASC 825. See discussion of the methods used to estimate the fair value of MSC Income Fund’s debt in Note B.9. — Summary of Significant Accounting Policies — Fair Value of Financial Instruments . Summary of MSC Income Fund’s debt as of December 31, 2022 is as follows: Outstanding Balance Unamortized Debt Issuance Costs (1) Recorded Value Estimated Fair Value (2) (dollars in thousands) SPV Facility $ 223,688 $ — $ 223,688 $ 223,688 Series A Notes 150,000 (1,144) 148,856 132,955 Corporate Facility 98,000 — 98,000 98,000 Total Debt $ 471,688 $ (1,144) $ 470,544 $ 454,643 _____________________________ (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 Series A Notes are reflected as a contra-liability to the Series A Notes on the Consolidated Balance Sheets. (2) Estimated fair value for outstanding debt if MSC Income Fund had adopted the fair value option under ASC 825. See discussion of the methods used to estimate the fair value of MSC Income Fund’s debt in Note B.9. — Summary of Significant Accounting Policies — Fair Value of Financial Instruments . Summarized interest expense for the years ended December 31, 2023, 2022 and 2021 is as follows: Year Ended December 31, 2023 2022 2021 (dollars in thousands) SPV Facility $ 22,184 $ 13,856 $ 8,255 Series A Notes 6,358 6,167 653 Corporate Facility 7,916 4,400 2,681 Deutsche Bank Credit Facility (1) — — 1,045 Main Street Term Loan (2) — — 1,835 Total Interest Expense $ 36,458 $ 24,423 $ 14,469 _____________________________ (1) Deutsche Bank Credit Facility was fully repaid and extinguished on February 3, 2021. (2) Main Street Term Loan was fully repaid and extinguished on October 22, 2021. Corporate Facility MSC Income Fund is a party to a senior secured revolving credit agreement dated March 6, 2017 (as amended, the “Corporate Facility”) with EverBank (formerly known as TIAA Bank), as administrative agent, and with EverBank and other financial institutions as lenders. As of December 31, 2023, the Corporate Facility included (i) total commitments of $165.0 million, (ii) an accordion feature with the right to request an increase in commitments under the facility from new and existing lenders on the same terms and conditions as the existing commitments up to $200.0 million of total commitments and (iii) a revolving period and maturity date to September 1, 2025 and March 1, 2026, respectively, with two, one-year extension options subject to lender approval. Borrowings under the Corporate Facility bear interest, subject to MSC Income Fund’s election, on a per annum basis at a rate equal to (i) SOFR plus 2.50% or (ii) the base rate plus 1.40%. The base rate is defined as the higher of (a) the Prime rate, (b) the Federal Funds Rate (as defined in the credit agreement) plus 0.5% or (c) SOFR plus 1.1%. Additionally, MSC Income Fund pays an annual unused commitment fee of 0.30% per annum on the unused lender commitments if more than 50% or more of the lender commitments are being used and an annual unused commitment fee of 0.625% per annum on the unused lender commitments if less than 50% of the lender commitments are being used. Borrowings under the Corporate Facility are secured by a first lien on all of the assets of MSIF and its subsidiaries, excluding the assets of Structured Subsidiaries or immaterial subsidiaries, as well as all of the assets, and a pledge of equity ownership interests, of any future subsidiaries of MSIF (other than Structured Subsidiaries or immaterial subsidiaries). In connection with the Corporate Facility, MSIF has made customary representations and warranties and is required to comply with various covenants, reporting requirements and other customary requirements for similar credit facilities. Effective April 27, 2023, the reference rate under the Corporate Facility was amended from LIBOR to SOFR plus an applicable credit spread adjustment of 0.10%. As of December 31, 2023, the interest rate on the Corporate Facility was 7.84%. The average interest rate for borrowings under the Corporate Facility was 7.54% and 4.11% for the years ended December 31, 2023 and 2022, respectively. As of December 31, 2023, MSC Income Fund was in compliance with all financial covenants of the Corporate Facility. SPV Facility MSIF Funding LLC (“MSIF Funding”), a wholly-owned Structured Subsidiary that primarily holds originated loan investments, is party to a senior secured revolving credit facility dated February 3, 2021 (as amended, the “SPV Facility” and, together with the Corporate Facility, the “Credit Facilities”) with JPMorgan Chase Bank, National Association (“JPM”), as administrative agent, and U.S. Bank, N.A., as collateral agent and collateral administrator, JPM and other financial institutions as lenders and MSIF as portfolio manager. In August 2023, the SPV facility was amended to extend the revolving period expiration date from February 3, 2024 to February 3, 2027 and the maturity date from February 3, 2025 to February 3, 2028. Additionally, total commitments were reduced from $325.0 million to $300.0 million. Advances under the SPV Facility bear interest at a per annum rate equal to the three month SOFR in effect, plus the applicable margin of 3.00%. MSIF Funding also pays a commitment fee of 0.75% per annum on the average daily unused amount of the financing commitments until February 2, 2027. As of December 31, 2023, the SPV Facility included total commitments of $300.0 million and an accordion feature, with the right to request an increase of total commitments and borrowing availability up to $450.0 million. The SPV Facility is secured by a collateral loan on the assets of MSIF Funding. In connection with the SPV Facility, MSIF 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 December 31, 2023, the interest rate on the SPV Facility was 8.39%. The average interest rate for borrowings under the SPV Facility was 8.09% and 4.71% for the years ended December 31, 2023 and 2022, respectively. As of December 31, 2023, MSIF Funding was in compliance with all financial covenants of the SPV Facility. Series A Notes Pursuant to a Master Note Purchase Agreement dated October 21, 2021 (the “Note Purchase Agreement”), MSC Income Fund issued $77.5 million of 4.04% Series A Senior Notes due 2026 (the “Series A Notes”) upon entering into the Note Purchase Agreement and an additional $72.5 million on January 21, 2022. The Series A Notes bear a fixed interest rate of 4.04% per year and will mature on October 30, 2026, unless redeemed, purchased or prepaid prior to such date by the Company in accordance with their terms. Interest on the Series A Notes is due semiannually on April 30 and October 30 each year, beginning on April 30, 2022. The Series A Notes may be redeemed in whole or in part at any time or from time to time at MSC Income Fund’s option at par plus accrued interest to the prepayment date and, if applicable, a make-whole premium. In addition, MSC Income Fund is obligated to offer to prepay the Series A Notes at par plus accrued and unpaid interest up to, but excluding, the date of prepayment, if certain change in control events occur. In the event that a Below Investment Grade Event (as defined in the Note Purchase Agreement) occurs, the Series A Notes will bear interest at a fixed rate of 5.04% per year from the date of the occurrence of the Below Investment Grade Event to and until the date on which the Below Investment Grade Event ends. The Series A Notes are general unsecured obligations of MSIF that rank pari passu with all outstanding and future unsecured unsubordinated indebtedness issued by MSIF. The Note Purchase Agreement also contains customary events of default with customary cure and notice periods, including, without limitation, nonpayment, incorrect representation in any material respect, breach of covenant, cross-default under other indebtedness of MSIF or subsidiary guarantors subject to a cure pass-through, certain judgments and orders and certain events of bankruptcy. As of December 31, 2023, MSC Income Fund was in compliance with all financial covenants of the Note Purchase Agreement. Main Street Term Loan On January 27, 2021, the Company entered into a term loan agreement (the “Main Street Term Loan”) with Main Street, which initially provided up to an aggregate principal amount of $40.0 million in borrowings. The Company paid a 1.0% upfront fee to Main Street on the closing date. On July 27, 2021, the Company entered into an amendment to the Main Street Term Loan that allowed the Company to draw an additional $20.0 million, with another $15.0 million available to be drawn in two separate $7.5 million tranches (each a “Delayed Draw Term Loan”) at a later date. Borrowings under the Main Street Term Loan were expressly subordinated and junior in right of payment to all secured indebtedness of the Company. On October 22, 2021, in connection with the issuance of the Series A Notes (discussed above), the Company fully repaid all borrowings outstanding under the Main Street Term Loan, and the Main Street Term Loan was extinguished. As a result, the Company recorded a loss on the extinguishment of debt in the amount of $0.3 million, which represented the write-off of the unamortized deferred financing fees related to the Main Street Term Loan. Deutsche Bank Credit Facility On May 18, 2015, HMS Funding I LLC (“HMS Funding”), a wholly-owned Structured Subsidiary, entered into an amended and restated credit agreement (as amended, the “Deutsche Bank Credit Facility”) among HMS Funding, as borrower, MSC Income Fund, as equity holder and as servicer, Deutsche Bank AG, New York Branch (“Deutsche Bank”), as administrative agent, the financial institutions party thereto as lenders (together with Deutsche Bank, the “HMS Funding Lenders”), and U.S. Bank National Association, as collateral agent and collateral custodian. On February 3, 2021, the total amount outstanding on the facility under the Deutsche Bank Credit Facility was fully repaid. As a result, MSC Income Fund recorded a loss on the extinguishment of debt in the amount of $2.1 million, which represented the write-off of the unamortized deferred financing fees related to the Deutsche Bank Credit Facility. For the year ended December 31, 2021, the average interest rate for borrowings under the Deutsche Bank Credit Facility, excluding amortization of deferred financing costs was 2.93% per annum. A summary of the Company’s contractual payment obligations for the repayment of outstanding indebtedness at December 31, 2023 is as follows: 2024 2025 2026 2027 2028 Thereafter Total (dollars in thousands) SPV Facility (1) $ — $ — $ — $ — $ 203,688 $ — $ 203,688 Series A Notes (2) — — 150,000 — — — 150,000 Corporate Facility (3) — — 132,000 — — — 132,000 Total $ — $ — $ 282,000 $ — $ 203,688 $ — $ 485,688 _____________________________ (1) At December 31, 2023, MSIF Funding had $96.3 million of undrawn lender commitments under the SPV Facility; however, MSIF Funding’s borrowing ability is limited by leverage and borrowing base restrictions imposed by the SPV Facility and the 1940 Act, as discussed above. (2) MSC Income Fund issued $77.5 million of Series A Notes upon entering into the Note Purchase Agreement on October 22, 2021 and an additional $72.5 million on January 21, 2022. (3) At December 31, 2023, MSC Income Fund had $33.0 million of undrawn lender commitments under the Corporate Facility; however, MSC Income Fund’s borrowing ability is limited by leverage and borrowing base restrictions imposed by the Corporate Facility and the 1940 Act, as discussed above.

FINANCIAL HIGHLIGHTS

FINANCIAL HIGHLIGHTS	12 Months Ended
	Dec. 31, 2023
Investment Company [Abstract]
FINANCIAL HIGHLIGHTS	FINANCIAL HIGHLIGHTS The following is a schedule of financial highlights of MSC Income Fund for the years ended December 31, 2023, 2022, 2021, 2020 and 2019: Year Ended December 31, Per Share Data: 2023 2022 2021 2020 2019 NAV at the beginning of the period $ 7.61 $ 7.68 $ 7.28 $ 7.77 $ 7.96 Net investment income (1)(6) 0.72 0.66 0.67 0.59 0.71 Net realized loss (1)(2) (0.42) (0.05) (0.04) (0.66) (0.23) Net unrealized appreciation (depreciation) (1)(2) 0.58 (0.02) 0.31 (0.03) 0.04 Income tax provision (1)(2) (0.05) (0.02) (0.02) (0.02) (0.01) Net increase (decrease) in net assets resulting from operations (1) 0.83 0.57 0.92 (0.12) 0.51 Dividends paid from net investment income (0.70) (0.65) (0.53) (0.35) (0.68) Dividends paid from capital gains — — — — (0.02) Dividends paid or accrued (3) (0.70) (0.65) (0.53) (0.35) (0.70) Accretive effect of stock repurchases (repurchasing shares below NAV) (4) 0.03 — — — — Other (5)(6) — 0.01 0.01 (0.02) — NAV at the end of the period $ 7.77 $ 7.61 $ 7.68 $ 7.28 $ 7.77 Shares outstanding at the end of the period 80,108,865 80,105,999 79,826,605 79,608,304 78,463,377 _____________________________ (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) Represents stockholder dividends paid or accrued for the period. (4) Shares repurchased in connection with the modified Dutch auction tender offers. See Note H — Share Repurchases for additional information. (5) 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. (6) Reclassifications have been made to certain prior year per share data. The 2020 “Other” and 2019 “Net investment income” per share amounts have been adjusted to reflect the income tax provision effect separately rather than as a component of these values. Year Ended December 31, 2023 2022 2021 2020 2019 (dollars in thousands) NAV at end of period $ 622,307 $ 609,665 $ 613,170 $ 579,624 $ 609,305 Average NAV $ 613,525 $ 611,214 $ 593,440 $ 557,382 $ 622,708 Average outstanding debt $ 487,271 $ 494,957 $ 321,973 $ 386,084 $ 474,000 Ratio of total expenses, including income tax expense, to average NAV(1)(2)(4) 12.63 % 8.60 % 6.51 % 7.38 % 9.11 % Ratio of operating expenses to average NAV(2)(4) 12.02 % 8.33 % 6.20 % 7.16 % 9.11 % Ratio of operating expenses, excluding interest expense, to average NAV(2)(4) 6.07 % 4.33 % 3.76 % 4.07 % 4.86 % Ratio of operating expenses, excluding interest expense and incentive fees, to average NAV(2)(4) 4.02 % 3.98 % 3.66 % 4.07 % 4.22 % Ratio of net investment income to average NAV(4) 9.40 % 8.65 % 8.99 % 8.40 % 8.84 % Portfolio turnover ratio 21.82 % 18.92 % 35.39 % 8.93 % 33.30 % Total return based on change in NAV(3)(4) 10.86 % 7.43 % 12.71 % (1.80) % 6.41 % _____________________________ (1) Total expenses are the sum of operating expenses and net income tax provision or benefit. Net income tax provision or benefit includes the accrual of net deferred tax provision or benefit relating to the net unrealized appreciation or depreciation on portfolio investments held in the 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. MSC Income Fund is required to include net deferred tax provision or benefit in calculating its total expenses even though these net deferred taxes are not currently payable or receivable. (2) Unless otherwise noted, operating expenses include interest, management fees, incentive fees and general and administrative expenses. (3) Total return is calculated based on the change in NAV per share and stockholder distributions declared per share during the reporting period, divided by the NAV per share at the beginning of the period. The total return does not reflect the sales load from the sale of MSC Income Fund’s common stock. (4) Net of expense waivers of $8.3 million, $4.5 million, $4.3 million, $3.6 million and $3.1 million in 2023, 2022, 2021, 2020 and 2019, respectively. Excluding these expense waivers, the expense and income ratios are as follows: Year Ended December 31, 2023 2022 2021 2020 2019 Ratio of total expenses, including income tax expense, to average NAV(1)(2) 13.98 % 9.33 % 7.24 % 8.11 % 9.84 % Ratio of operating expenses to average NAV(2) 13.37 % 9.06 % 6.92 % 7.89 % 9.84 % Ratio of operating expenses, excluding interest expense, to average NAV(2) 7.43 % 5.07 % 4.49 % 4.80 % 5.58 % Ratio of operating expenses, excluding interest expense and incentive fees, to average NAV(2) 5.38 % 4.72 % 4.39 % 4.80 % 4.95 % Ratio of net investment income to average NAV 8.05 % 7.90 % 8.26 % 7.67 % 8.11 % Total return based on change in NAV(3) 9.50 % 6.69 % 11.98 % (2.20) % 5.85 % _____________________________ See footnotes (1), (2), (3) and (4) immediately prior to this table.

DIVIDENDS, DISTRIBUTIONS AND TA

DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME	12 Months Ended
	Dec. 31, 2023
Income Tax Disclosure [Abstract]
DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME	DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME MSC Income Fund currently pays quarterly dividends to its stockholders. Future quarterly dividends, if any, will be determined by its Board of Directors on a quarterly basis. MSC Income Fund paid or accrued dividends to its common stockholders of $56.1 million, or $0.700 per share, during the year ended December 31, 2023, compared to $51.6 million, or $0.645 per share, during the year ended December 31, 2022. For tax purposes, the 2023 dividends, which included the effects of dividends on an accrual basis, totaled $56.1 million, or $0.700 per share, and were comprised of (i) ordinary income totaling $0.596 per share and (ii) qualified dividend income totaling $0.104 per share. As of December 31, 2023, MSC Income Fund estimates that it has generated undistributed taxable income of $14.7 million, or $0.18 per share, that will be carried forward toward distributions to be paid in 2024. MSIF has elected to be treated for U.S. federal income tax purposes as a RIC. MSIF’s taxable income includes the taxable income generated by MSIF and certain of its subsidiaries, including the Structured Subsidiaries, which are treated as disregarded entities for tax purposes. As a RIC, MSIF generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that MSIF distributes to its stockholders. MSIF 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 MSC Income Fund’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. The tax character of distributions paid for the years ended December 31, 2023, 2022 and 2021 was as follows: Year Ended December 31, 2023 2022 2021 (dollars in thousands) Ordinary income (1) $ 47,756 $ 61,854 $ 29,797 Qualified dividends 8,301 1,727 92 Distributions on tax basis $ 56,057 $ 63,581 $ 29,889 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 years ended December 31, 2023, 2022 and 2021. Year Ended December 31, 2023 2022 2021 (estimated, dollars in thousands) Net increase in net assets resulting from operations $ 66,209 $ 45,588 $ 73,636 Net unrealized (appreciation) depreciation (46,319) 1,702 (25,095) Income tax provision 3,769 1,643 1,890 Pre-tax book (income) loss not consolidated for tax purposes 4,241 (9,748) (17,640) Book income and tax income differences, including debt origination, structuring fees, dividends, realized gains and changes in estimates 22,228 9,820 3,171 Estimated taxable income (1) 50,128 49,005 35,962 Taxable income earned in prior year and carried forward for distribution in current year 20,674 23,276 29,173 Taxable income earned prior to period end and carried forward for distribution next period (28,764) (33,491) (35,250) Dividend accrued as of period end and paid in the following period 14,019 12,817 11,974 Taxable income earned to be carried forward (14,745) (20,674) (23,276) Total distributions accrued or paid to common stockholders $ 56,057 $ 51,607 $ 41,859 _____________________________ (1) MSIF’s taxable income for each period is an estimate and will not be finally determined until MSIF 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 MSC Income Fund. The Taxable Subsidiaries permit MSC Income Fund 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 MSIF for U.S. GAAP financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries are included in MSC Income Fund’s consolidated financial statements as portfolio investments and recorded at fair value. The Taxable Subsidiaries are not consolidated with MSIF 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 MSC Income Fund’s consolidated financial statements. The income tax provision for MSC Income Fund is generally composed of (i) deferred tax expense (benefit), 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, changes in valuation allowance 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 MSC Income Fund’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 MSC Income Fund’s Consolidated Statements of Operations. MSC Income Fund’s provision for income taxes was comprised of the following for the years ended December 31, 2023, 2022 and 2021: Year Ended December 31, 2023 2022 2021 (dollars in thousands) Current tax expense: Federal $ 13 $ 33 $ — State 340 495 495 Excise 519 753 1,395 Total current tax expense 872 1,281 1,890 Deferred tax expense (benefit): Federal 3,450 351 — State (553) 11 — Total deferred tax expense 2,897 362 — Total income tax provision $ 3,769 $ 1,643 $ 1,890 MSIF operates in a manner to maintain its RIC status and to eliminate corporate-level U.S. federal income tax (other than the 4% excise tax) by distributing sufficient investment company taxable income and long-term capital gains. As a result, MSIF will have an effective tax rate equal to 0% before the excise tax and income taxes incurred by the Taxable Subsidiaries. As such, a reconciliation of the differences between MSC Income Fund’s reported income tax expense and its tax expense at the federal statutory rate of 21% is not meaningful. As of December 31, 2023, the cost of investments for U.S. federal income tax purposes was $1,035.0 million, with such investments having an estimated net unrealized appreciation of $57.9 million, composed of gross unrealized appreciation of $154.3 million and gross unrealized depreciation of $96.4 million. As of December 31, 2022, the cost basis of investments for tax purposes was $1,059.9 million, with such investments having an estimated net unrealized appreciation of $8.3 million, composed of gross unrealized appreciation of $122.6 million and gross unrealized depreciation of $114.3 million. The following table sets forth the significant components of net deferred tax assets and liabilities as of December 31, 2023 and 2022: Year Ended 2023 2022 (dollars in thousands) Deferred tax assets: Net operating loss carryforwards $ 671 $ 398 Interest expense carryforwards 3,258 1,426 General business and foreign tax credit carryforwards 329 156 Capital loss carryforwards 6,041 10,013 Total deferred tax assets 10,299 11,993 Deferred tax liabilities: Net basis differences in portfolio investments (1,484) (3,777) Net unrealized appreciation of portfolio investments (12,074) (8,578) Total deferred tax liabilities (13,558) (12,355) Total deferred tax liabilities, net $ (3,259) $ (362) The net deferred tax liability at December 31, 2023 was $3.3 million. The net deferred tax liability at December 31, 2022 was $0.4 million. Management believes that the realization of the deferred tax assets is more likely than not based on expectations as to future taxable income and scheduled reversals of temporary differences. Accordingly, MSC Income Fund did not record a valuation allowance related to its deferred tax assets as of December 31, 2023 and 2022.

SHARE REPURCHASES

SHARE REPURCHASES	12 Months Ended
	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
SHARE REPURCHASES	SHARE REPURCHASES Under the terms of its share repurchase program, MSC Income Fund offers to purchase shares at the NAV per share on the repurchase date. The amount of shares of MSC Income Fund’s common stock to be repurchased during any calendar quarter may be equal to the lesser of (i) the number of shares of common stock MSC Income Fund could repurchase with the proceeds it received from the issuance of common stock under MSC Income Fund’s dividend reinvestment plan or (ii) 2.5% of the weighted-average number of shares of common stock outstanding in the prior four calendar quarters. Repurchase offers are currently limited to the number of shares of common stock MSC Income Fund can repurchase with 90% of the cash retained as a result of issuances of common stock under its dividend reinvestment plan. At the discretion of the Board of Directors, MSC Income Fund may also use cash on hand, cash available from borrowings and cash from the sale of investments as of the end of the applicable period to repurchase shares. MSC Income Fund’s Board of Directors may amend, suspend or terminate the share repurchase program upon 30 days’ notice. In addition to its share repurchase program, during the fiscal year ended December 31, 2023, MSC Income Fund used proceeds from the sale of their shares during 2023 to complete three modified Dutch auction tender offers, pursuant to which MSC Income Fund offered to purchase up to a specified amount of shares of its common stock at the lowest clearing purchase price elected by participating stockholders within a specified range that allowed MSC Income Fund to purchase the maximum amount offered. All shares purchased in a “Dutch auction” tender offer were purchased at the clearing purchase price. SEC rules permitted MSC Income Fund to increase the number of shares accepted for purchase in any offer by up to 2% of MSC Income Fund’s outstanding shares without amending the offer. Since inception of its share repurchase program, MSC Income Fund has funded the repurchase of $153.5 million in shares of common stock, including the shares repurchased by MSC Income Fund under the “Dutch auction” tender offers, as of December 31, 2023. For the years ended December 31, 2023, 2022 and 2021, MSC Income Fund funded $24.4 million, $16.0 million and $10.1 million, respectively, for shares of its common stock tendered for repurchase under the plan. For the year ended December 31, 2023, MSC Income Fund purchased 1,267,667 shares of its common stock for $7.8 million through its modified Dutch auction tender offers. Repurchases of MSC Income Fund’s common stock pursuant to its share repurchase program and modified Dutch auction tender offers for the years ended December 31, 2023, 2022 and 2021 are as follows: Period Total number of shares purchased Average price paid per share Total number of shares purchased as part of publicly announced plans or programs Approximate dollar value of shares that may yet be purchased under the plans or programs April 1 through June 30, 2021 383,513 $ 7.46 383,513 N/A July 1 through September 30, 2021 438,292 7.57 438,292 N/A October 1 through December 31, 2021 511,314 7.60 511,314 N/A January 1 through March 31, 2022 489,031 7.75 489,031 N/A April 1 through June 30, 2022 536,065 7.77 536,065 N/A July 1 through September 30, 2022 527,508 7.64 527,508 N/A October 1 through December 31, 2022 522,310 7.66 522,310 N/A January 1 through March 31, 2023 519,489 7.67 519,489 N/A April 1 through June 30, 2023 (1) 965,568 6.59 965,568 N/A July 1 through September 30, 2023 (2) 978,579 7.12 978,579 N/A October 1 through December 31, 2023 (3) 958,928 7.12 958,928 N/A Total 6,830,597 6,830,597 _____________________________ (1) Includes 406,904 shares repurchased under the Dutch auction tender offer pursuant to the to the tender offer statement and Offer to Purchase filed with the SEC on May 15, 2023 at a price of $5.50 per share for an aggregate cost of $2.2 million. (2) Includes 432,920 shares repurchased under the Dutch auction tender offer pursuant to the to the tender offer statement and Offer to Purchase filed with the SEC on June 14, 2023 at a price of $6.50 per share for an aggregate cost of $2.8 million. (3) Includes 427,843 shares repurchased under the Dutch auction tender offer pursuant to the to the tender offer statement and Offer to Purchase filed with the SEC on November 15, 2023 at a price of $6.50 per share for an aggregate cost of $2.8 million

DIVIDEND REINVESTMENT PLAN

DIVIDEND REINVESTMENT PLAN	12 Months Ended
	Dec. 31, 2023
Equity [Abstract]
DIVIDEND REINVESTMENT PLAN	DIVIDEND REINVESTMENT PLAN MSC Income Fund’s dividend reinvestment plan (the “DRIP”) provides for the reinvestment of dividends on behalf of stockholders. As a result, if MSC Income Fund declares a cash dividend, stockholders who have “opted in” to the DRIP will have their cash dividend automatically reinvested into additional shares of MSC Income Fund common stock. The number of shares of common stock to be issued to a stockholder under the DRIP shall be determined by dividing the total dollar amount of the distribution payable to such stockholder by a price per share of common stock determined by MSC Income Fund’s Board of Directors or a committee thereof, in its sole discretion, that is (i) not less than the NAV per share of common stock determined in good faith by the Board of Directors or a committee thereof, in its sole discretion, within 48 hours prior to the payment of the distribution and (ii) not more than 2.5% greater than the NAV per share as of such date. Summarized DRIP information for the years ended December 31, 2023, 2022 and 2021 is as follows: Year Ended December 31, 2023 2022 2021 (dollars in thousands) DRIP participation $ 18,417 $ 17,750 $ 11,160 Shares issued for DRIP 2,345,246 2,259,611 1,461,776

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	12 Months Ended
	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES At December 31, 2023, MSC Income Fund had the following outstanding commitments (in thousands): Investments with equity capital commitments that have not yet funded: Amount Brightwood Capital Fund III, LP $ 216 Freeport First Lien Loan Fund III LP 8,340 HPEP 3, L.P. 1,308 Total Equity Commitments $ 9,864 Investments with commitments to fund revolving loans that have not been fully drawn or term loans with additional commitments not yet funded: CQ fluency, LLC $ 4,500 Mako Steel, LP 4,057 Power System Solutions 3,989 Insight Borrower Corporation 3,888 AB Centers Acquisition Corporation 2,810 Garyline, LLC 2,626 SI East, LLC 2,125 Mini Melts of America, LLC 1,988 Bluestem Brands, Inc. 1,840 American Health Staffing Group, Inc. 1,667 IG Parent Corporation 1,667 ArborWorks, LLC 1,481 Infolinks Media Buyco, LLC 1,260 Burning Glass Intermediate Holding Company, Inc. 1,239 Bettercloud, Inc. 1,216 Richardson Sales Solutions 1,061 HEADLANDS OP-CO LLC 1,000 IG Investor, LLC 1,000 NexRev LLC 1,000 SPAU Holdings, LLC 1,000 Roof Opco, LLC 972 Bond Brand Loyalty ULC 900 Classic H&G Holdco, LLC 860 Engineering Research & Consulting, LLC 828 VVS Holdco, LLC 800 Cody Pools, Inc. 786 Purge Rite, LLC 781 Acumera, Inc. 768 NinjaTrader, LLC 750 Imaging Business Machines, L.L.C. 692 Centre Technologies Holdings, LLC 600 Paragon Healthcare, Inc. 571 Invincible Boat Company, LLC. 561 AVEX Aviation Holdings, LLC 512 Evergreen North America Acquisitions, LLC 501 Wall Street Prep, Inc. 500 Watterson Brands, LLC 484 GRT Rubber Technologies LLC 468 JTI Electrical & Mechanical, LLC 440 RA Outdoors LLC 438 Microbe Formulas, LLC 434 PTL US Bidco, Inc 427 CaseWorthy, Inc. 400 Trantech Radiator Topco, LLC 400 Chamberlin Holding LLC 400 Johnson Downie Opco, LLC 400 Channel Partners Intermediateco, LLC 381 ITA Holdings Group, LLC 366 Escalent, Inc. 349 South Coast Terminals Holdings, LLC 343 Gamber-Johnson Holdings, LLC 300 Pinnacle TopCo, LLC 285 Batjer TopCo, LLC 230 Metalforming Holdings, LLC 205 Career Team Holdings, LLC 200 ATS Operating, LLC 200 Mystic Logistics Holdings, LLC 200 Orttech Holdings, LLC 200 Analytical Systems Keco Holdings, LLC 145 Elgin AcquireCo, LLC 123 Clad-Rex Steel, LLC 100 Gulf Publishing Holdings, LLC 100 AAC Holdings, Inc. 71 Inspire Aesthetics Management, LLC 43 Adams Publishing Group, LLC 5 Interface Security Systems, L.L.C 1 Total Loan Commitments $ 60,934 Total Commitments $ 70,798 MSC Income Fund 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). MSC Income Fund follows a process to manage its liquidity and ensure that it has available capital to fund its unfunded commitments as necessary. MSC Income Fund had no unrealized appreciation or depreciation on the outstanding unfunded commitments as of December 31, 2023. MSC Income Fund 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 MSC Income Fund 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, MSC Income Fund 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 MSC Income Fund’s financial condition or results of operations in any future reporting period.

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	12 Months Ended
	Dec. 31, 2023
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS	RELATED PARTY TRANSACTIONS 1. Advisory Agreements and Conditional Expense Reimbursement Waivers On October 30, 2020, MSC Income Fund entered into the Investment Advisory Agreement with the Adviser, which states that the Adviser will oversee the management of MSC Income Fund’s activities and is responsible for making investment decisions with respect to, and providing day‑to‑day management and administration of, MSC Income Fund’s Investment Portfolio. The Investment Advisory Agreement was most recently re-approved by the Board of Directors, including a majority of members who are not “interested” persons (as defined by the 1940 Act) of MSC Income Fund or the Adviser, on August 10, 2023. Pursuant to the Investment Advisory Agreement, MSC Income Fund pays the Adviser a base management fee and incentive fees as compensation for the services described above. The base management fee is calculated at an annual rate of 1.75% of MSC Income Fund’s average gross assets. The term “gross assets” means total assets of MSC Income Fund as disclosed on MSC Income Fund’s Consolidated Balance Sheets. “Average gross assets” are calculated based on MSC Income Fund’s gross assets at the end of the two most recently completed calendar quarters. The base management fee is payable quarterly in arrears. The base management fee is expensed as incurred. The incentive fee under the Investment Advisory Agreement consists of two parts. The first part, referred to as the subordinated incentive fee on income, is calculated and payable quarterly in arrears based on Pre-Incentive Fee Net Investment Income (as defined below) for the immediately preceding quarter. The subordinated incentive fee on income is equal to 20.0% of MSC Income Fund’s Pre-Incentive Fee Net Investment Income for the immediately preceding quarter, expressed as a quarterly rate of return on adjusted capital at the beginning of the most recently completed calendar quarter, exceeding 1.875% (or 7.5% annualized), subject to a “catch up” feature (as described below). For this purpose, Pre-Incentive Fee Net Investment Income means interest income, dividend income and any other income (including any other fees such as commitment, origination, structuring, diligence and consulting fees or other fees that MSC Income Fund receives from portfolio companies) accrued during the calendar quarter, minus MSC Income Fund’s operating expenses for the quarter (including the management fee, expenses payable under any proposed administration agreement and any interest expense and dividends paid on any issued and outstanding preferred stock, but excluding taxes and the incentive fee). Pre-Incentive Fee Net Investment Income includes, in the case of investments with a deferred interest feature (such as original issue discount debt instruments and PIK interest and zero coupon securities), accrued income that MSC Income Fund has not yet received in cash. Pre-Incentive Fee Net Investment Income does not include any realized capital gains, realized capital losses or unrealized capital appreciation or depreciation. For purposes of this fee, adjusted capital means cumulative gross proceeds generated from sales of MSC Income Fund’s common stock (including proceeds from MSC Income Fund’s DRIP) reduced for non-liquidating distributions, other than distributions of profits, paid to MSC Income Fund’s stockholders and amounts paid for share repurchases pursuant to MSC Income Fund’s share repurchase program. The subordinated incentive fee on income is expensed in the quarter in which it is incurred. The calculation of the subordinated incentive fee on income for each quarter is as follows: • No subordinated incentive fee on income shall be payable to the Adviser in any calendar quarter in which MSC Income Fund’s Pre-Incentive Fee Net Investment Income does not exceed the hurdle rate of 1.875% (or 7.5% annualized) on adjusted capital; • 100% of MSC Income Fund’s Pre-Incentive Fee Net Investment Income, if any, that exceeds the hurdle rate but is less than or equal to 2.34375% in any calendar quarter (9.375% annualized) shall be payable to the Adviser. This portion of the subordinated incentive fee on income is referred to as the “catch up” and is intended to provide the Adviser with an incentive fee of 20.0% on all of MSC Income Fund’s Pre-Incentive Fee Net Investment Income as if the hurdle rate did not apply when the Pre-Incentive Fee Net Investment Income exceeds 2.34375% (9.375% annualized) in any calendar quarter; and • For any quarter in which MSC Income Fund’s Pre-Incentive Fee Net Investment Income exceeds 2.34375% (9.375% annualized), the subordinated incentive fee on income shall equal 20.0% of the amount of MSC Income Fund’s Pre-Incentive Fee Net Investment Income, as the hurdle rate and catch-up will have been achieved. The second part of the incentive fee, referred to as the incentive fee on capital gains, is an incentive fee on realized capital gains earned from the portfolio of MSC Income Fund and is determined and payable in arrears as of the end of each calendar year (or upon termination of the Investment Advisory Agreement). This fee equals 20.0% of MSC Income Fund’s incentive fee capital gains, which equals MSC Income Fund’s realized capital gains on a cumulative basis from inception, calculated as of the end of each calendar year, computed net of all realized capital losses and unrealized capital depreciation on a cumulative basis, less the aggregate amount of any previously paid capital gain incentive fees. At the end of each reporting period, MSC Income Fund estimates the incentive fee on capital gains and accrues the fee based on a hypothetical liquidation of its portfolio. Therefore, the accrual includes both net realized gains and net unrealized gains (the net unrealized difference between the fair value and the par value of its portfolio), if any. The incentive fee accrued pertaining to the unrealized gain is neither earned nor payable to the Adviser until such time it is realized. For the years ended December 31, 2023, 2022 and 2021, MSC Income Fund incurred base management fees of $19.8 million, $19.8 million and $17.3 million, respectively. For the years ended December 31, 2023, 2022 and 2021, MSC Income Fund incurred subordinated incentive fees on income of $12.6 million, $2.1 million and $0.6 million, respectively. For the years ended December 31, 2023, 2022 and 2021, MSC Income Fund did not incur any capital gains incentive fees. Pursuant to the Investment Advisory Agreement, MSC Income Fund is required to pay or reimburse the Adviser for administrative services expenses, which include all costs and expenses related to MSC Income Fund’s day-to-day administration and management not related to advisory services, whether such administrative services were performed by a third-party service provider or the Adviser or its affiliates (to the extent performed by the Adviser or its affiliates, the “Internal Administrative Services”). Internal Administrative Services include, but are not limited to, the cost of an Adviser’s personnel performing accounting and compliance functions and other administrative services on behalf of MSC Income Fund. The Adviser waived reimbursement of all Internal Administrative Services expenses from October 30, 2020 through December 31, 2021. On January 1, 2022, the Adviser assumed responsibility of certain administrative services that were previously provided for MSC Income Fund by a third-party sub-administrator. After December 31, 2021, the Adviser continued to waive reimbursement of all Internal Administrative Services expenses, except for the cost of the services previously provided by the sub-administrator. For the years ended December 31, 2023, 2022 and 2021, MSC Income Fund incurred Internal Administrative Services Expenses of $8.9 million, $5.1 million and $4.3 million, respectively. For the years ended December 31, 2023, 2022 and 2021, the Adviser waived the reimbursements of Internal Administrative Services expenses of $8.3 million, $4.5 million and $4.3 million, respectively. Waived Internal Administrative Services expenses are permanently waived and are not subject to future reimbursement. 2. Offering Costs In accordance with MSC Income Fund’s previous investment advisory agreement with the previous investment adviser (“HMS Adviser”), MSC Income Fund reimbursed HMS Adviser for any offering costs that were paid on MSC Income Fund’s behalf, which consisted of, among other costs, actual legal, accounting, bona fide out-of-pocket itemized and detailed due diligence costs, printing, filing fees, transfer agent costs, postage, escrow fees, advertising and sales literature and other costs incurred in connection with the offering of MSC Income Fund’s common stock, including through MSC Income Fund’s DRIP. HMS Adviser was responsible for the payment of offering costs to the extent they exceeded 1.5% of the aggregate gross stock offering proceeds. Pursuant to the transaction whereby the Adviser became the investment adviser to MSC Income Fund, HMS Adviser agreed to permanently waive reimbursement of organizational and offering expenses except for $0.6 million which remained payable to HMS Adviser and would be reimbursed as part of future issuances of common stock by MSC Income Fund. For the years ended December 31, 2023 and 2022, MSC Income Fund reimbursed HMS Adviser $0.1 million and $0.3 million, respectively, in connection with stock issuances. As of June 30, 2023, MSC Income Fund’s reimbursement obligation to HMS Adviser for organizational and offering expenses was fully repaid. 3. Indemnification The Investment Advisory Agreement provides that the Adviser and its officers, directors, controlling persons and any other person or entity affiliated with it acting as MSC Income Fund’s agent are entitled to indemnification (including reasonable attorneys’ fees and amounts reasonably paid in settlement) for any liability or loss suffered by such indemnitee, and such indemnitee will be held harmless for any loss or liability suffered by MSC Income Fund, if (i) the indemnitee has determined, in good faith, that the course of conduct which caused the loss or liability was in MSC Income Fund’s best interests, (ii) the indemnitee was acting on behalf of or performing services for MSC Income Fund, (iii) the liability or loss suffered was not the result of negligence, willful malfeasance, bad faith or misconduct by the indemnitee or an affiliate thereof acting as MSC Income Fund’s agent and (iv) the indemnification or agreement to hold the indemnitee harmless is only recoverable out of MSC Income Fund’s net assets and not from MSC Income Fund’s stockholders. 4. Co-Investment In the ordinary course of business, MSC Income Fund enters into transactions with other parties that may be considered related party transactions. MSC Income Fund has implemented certain policies and procedures, both written and unwritten, to ensure that it does not engage in any prohibited transactions with any persons affiliated with MSC Income Fund. If such affiliations are found to exist, MSC Income Fund seeks the Board of Directors and/or appropriate Board of Directors committee review and approval for such transactions and otherwise comply with, or seek, orders for exemptive relief from the SEC, as appropriate. MSC Income Fund has received an exemptive order from the SEC permitting co-investments among MSC Income Fund, Main Street and other funds and clients advised by the Adviser in certain negotiated transactions where co-investing would otherwise be prohibited under the 1940 Act. MSC Income Fund has made co-investments, and in the future intends to continue to make co-investments with Main Street and other funds and clients advised by the Adviser, in accordance with the conditions of the order. The order requires, among other things, that the Adviser and Main Street consider whether each such investment opportunity is appropriate for MSC Income Fund, Main Street and the other funds and clients advised by the Adviser, as applicable, and if it is appropriate, to propose an allocation of the investment opportunity between such parties. Because the Adviser is wholly-owned by Main Street and is not managing MSC Income Fund’s investment activities as its sole activity, this may provide the Adviser an incentive to allocate opportunities to other participating funds and clients instead of MSC Income Fund. However, the Adviser has policies and procedures in place to manage this conflict, including oversight by the independent members of the Board of Directors. Additional information regarding the operation of the co-investment program is set forth in the order granting exemptive relief, which may be reviewed on the SEC’s website at www.sec.gov. In addition to the co-investment program described above, MSC Income Fund also co-invests in syndicated deals and other transactions where price is the only negotiated point by MSC Income Fund and its affiliates. 5. Other Related Party Transactions On January 27, 2021, MSC Income Fund entered into the Main Street Term Loan, which initially provided for an aggregate principal amount of $40.0 million in borrowings. MSC Income Fund paid a 1.0% upfront fee to Main Street on the closing date. On July 27, 2021, MSC Income Fund entered into an amendment to the Main Street Term Loan that allowed MSC Income Fund to initially draw an additional $20.0 million, with another $15.0 million available to be drawn in two separate $7.5 million tranches at a later date. Following the amendment, as of September 30, 2021, the aggregate principal amount outstanding under the Main Street Term Loan was $60.0 million bearing interest at a fixed rate of 5.00% per annum and maturing on January 27, 2026. Borrowings under the Main Street Term Loan were expressly subordinated and junior in right of payment to all secured indebtedness of MSC Income Fund. The Main Street Term Loan 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, of MSC Income Fund or the Adviser. On October 22, 2021, MSC Income Fund fully repaid all borrowings outstanding under the Main Street Term Loan and the Main Street Term Loan was extinguished. On May 2, 2022, the Company sold 94,697 shares of its common stock to Main Street at $7.92 per share, the price at which the Company issued new shares in connection with reinvestments of the May 2, 2022 dividend pursuant to the DRIP, for total proceeds to the Company of $750,000. The issuance and sale were made pursuant to the exemption from registration under Section 4(a)(2) of the Securities Act of 1933, as amended (the “Securities Act”), and were 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, of the Company or the Adviser. On May 1, 2023, the Company sold 255,754 shares of its common stock to Main Street at $7.82 per share, the price at which the Company issued new shares in connection with reinvestments of the May 1, 2023 dividend pursuant to the DRIP, for total proceeds to the Company of $2.0 million. The issuance and sale were made pursuant to the exemption from registration under Section 4(a)(2) of the Securities Act and were 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, of the Company or the Adviser. On August 1, 2023, the Company sold 348,542 shares of its common stock to Main Street at $7.89 per share, the price at which the Company issued new shares in connection with reinvestments of the August 1, 2023 dividend pursuant to the DRIP, for total proceeds to the Company of $2.8 million. The issuance and sale were made pursuant to the exemption from registration under Section 4(a)(2) of the Securities Act and were 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, of the Company or the Adviser. On November 1, 2023, the Company sold 475,888 shares of its common stock to Main Street at $7.88 per share, the price at which the Company issued new shares in connection with reinvestments of the November 1, 2023 dividend pursuant to the DRIP, for total proceeds to the Company of $3,750,000. The issuance and sale were made pursuant to the exemption from registration under Section 4(a)(2) of the Securities Act and were 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, of the Company or the Adviser. In September 2023, pursuant to the August Dutch auction tender offer, Main Street purchased 115,385 shares of MSC Income Fund common stock from MSC Income Fund stockholders at the August Clearing Price, or $6.50 per share, for an aggregate cost of $0.8 million. See Note H – Share Repurchases for more information. The August Dutch auction tender offer, including Main Street’s participation, were 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, of the Company or the Adviser.

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	12 Months Ended
	Dec. 31, 2023
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS On January 31, 2024, the Company sold 314,070 shares of its common stock to Main Street at $7.96 per share, the price at which the Company issued new shares in connection with reinvestments of the January 31, 2024 dividend pursuant to the DRIP, for total proceeds to the Company of $2.5 million. The issuance and sale were made pursuant to the exemption from registration under Section 4(a)(2) of the Securities Act and were 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, of the Company or the Adviser. On January 31, 2024, MSC Income Fund repurchased 518,173 shares of its common stock validly tendered and not withdrawn on the terms set forth in the tender offer statement on Schedule TO and Offer to Purchase filed with the SEC on December 21, 2023. The shares were repurchased at a price of $7.81 per share, which was MSC Income Fund’s NAV per share as of January 31, 2024, for an aggregate purchase price of $4.0 million (an amount equal to 90% of the proceeds MSC Income Fund received from the issuance of shares under MSC Income Fund’s DRIP from the January 31, 2024 dividend payment). On February 5, 2024, MSC Income Fund commenced a modified “Dutch Auction” tender offer (the “February Dutch Auction Tender Offer”) pursuant to the Offer to Purchase, dated February 5, 2024, which expired on March 4, 2024. Pursuant to the February Dutch Auction Tender Offer, MSC Income Fund repurchased 357,143 shares on March 8, 2024, at a price of $7.00 per share for an aggregate cost of $2.5 million, excluding fees and expenses related to the February Dutch Auction Tender Offer. On March 7, 2024, the Board of Directors declared a quarterly cash dividend of $0.185 per share payable May 1, 2024 to stockholders of record as of March 29, 2024. Additionally, the Board of Directors approved a repurchase offer pursuant to the Company’s share repurchase program in an amount equal to 90% of the proceeds resulting from shares issued in lieu of cash distributions from the May 1, 2024 dividend payment.

Consolidated Schedule of Inve_3

Consolidated Schedule of Investments In and Advances to Affiliates	12 Months Ended
	Dec. 31, 2023
Investments in and Advances to Affiliates [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 December 31, Control Investments Copper Trail Fund Investments LP Interests (CTMH, LP) (9) $ — $ — $ 38 $ 588 $ — $ 20 $ 568 GRT Rubber Technologies LLC 11.48% SF+ 6.00% Secured Debt (12) (8) — 3 88 330 852 — 1,182 13.48% SF+ 8.00% Secured Debt (8) — (50) 2,696 19,943 51 50 19,944 Member Units (8) — — 90 21,890 — — 21,890 Harris Preston Fund Investments LP Interests (2717 MH, L.P.) (8) 2,223 (952) 142 7,552 2,796 4,298 6,050 Volusion, LLC 10.00% Secured Debt (8) — — 69 — 900 — 900 11.50% Secured Debt (8) (1,366) 780 71 6,392 — 6,392 — 8.00% Unsecured Convertible Debt (8) (175) 175 — — 175 175 — Preferred Member Units (8) — — 1 — — — — Preferred Member Units (8) — (596) — — 4,906 1,796 3,110 Preferred Member Units (8) — — — — — — — Common Stock (8) — (1,104) — — 1,104 1,104 — Warrants (8) — 1,104 — — — — — Other 1,541 (649) (94) (6,392) 6,392 — — Total Control Investments $ 2,223 $ (1,289) $ 3,101 $ 50,303 $ 17,176 $ 13,835 $ 53,644 Affiliate Investments AFG Capital Group, LLC Preferred Member Units (8) $ 1,800 $ (2,050) $ — $ 2,350 $ 1,800 $ 4,150 $ — Analytical Systems Keco Holdings, LLC 15.38% SF+ 10.00% Secured Debt (12) (8) — — 4 (2) 56 — 54 15.38% SF+ 10.00% Secured Debt (8) — — 188 1,135 21 136 1,020 14.13% Preferred Member Units (8) — — — — — — — Preferred Member Units (8) — 330 — 880 330 — 1,210 Warrants (8) — — — — — — — ATX Networks Corp. L+ 7.50% Secured Debt (6) — (102) 856 6,368 545 6,913 — 10.00% Unsecured Debt (6) — (276) 1,135 2,614 1,135 3,749 — Common Stock (6) 3,178 (3,290) — 3,290 3,178 6,468 — Barfly Ventures, LLC Member Units (5) — 273 — 1,107 273 — 1,380 Batjer TopCo, LLC 10.00% Secured Debt (12) (8) — 1 — (1) 1 — — 10.00% Secured Debt (12) (8) — — 2 — 70 40 30 10.00% Secured Debt (8) — 15 129 1,205 21 51 1,175 Preferred Stock (8) — 225 76 455 225 — 680 Brewer Crane Holdings, LLC 15.46% L+ 10.00% Secured Debt (9) — — 224 1,491 8 125 1,374 Preferred Member Units (9) — (370) 30 1,770 — 370 1,400 Centre Technologies Holdings, LLC SF+ 9.00% Secured Debt (12) (8) — — 3 — — — — 14.48% SF+ 9.00% Secured Debt (8) — 29 572 3,731 663 — 4,394 Preferred Member Units (8) — 590 30 2,170 590 — 2,760 Chamberlin Holding LLC SF+ 6.00% Secured Debt (12) (8) — 49 11 — — — — 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 December 31, 13.49% SF+ 8.00% Secured Debt (8) — (4) 553 4,236 4 335 3,905 Member Units (8) — 1,599 1,045 5,728 1,602 — 7,330 Member Units (8) — 37 23 678 38 1 715 Charps, LLC Preferred Member Units (5) — 590 366 3,330 590 — 3,920 Clad-Rex Steel, LLC 11.50% Secured Debt (12) (5) — — — — — — — 11.50% Secured Debt (5) — (37) 284 2,620 — 517 2,103 10.00% Secured Debt (5) — — 26 260 — 9 251 Member Units (5) — (760) 69 2,060 — 760 1,300 Member Units (5) — 55 — 152 130 — 282 Cody Pools, Inc. 12.50% Secured Debt (12) (8) — 2 1 — — — — 12.50% Secured Debt (8) — 22 562 — 7,872 761 7,111 L+ 10.50% Secured Debt (8) — (11) 26 273 14 287 — L+ 10.50% Secured Debt (8) — (96) 500 6,882 — 6,882 — Preferred Member Units (8) — 3,570 1,219 14,550 3,570 — 18,120 Colonial Electric Company LLC Secured Debt (6) — — 12 — 400 400 — 12.00% Secured Debt (6) — (41) 471 5,729 34 356 5,407 Preferred Member Units (6) — 360 — — 600 — 600 Preferred Member Units (6) — (370) — 2,290 — 370 1,920 Compass Systems & Sales, LLC 13.50% Secured Debt (5) — — — — — — — 13.50% Secured Debt (5) — — 69 — 4,175 — 4,175 Preferred Equity (5) — — — — 1,863 — 1,863 Datacom, LLC 7.50% Secured Debt (8) — — 4 25 89 65 49 10.00% Secured Debt (8) — (14) 107 865 22 43 844 Preferred Member Units (8) — (290) — 300 — 290 10 Digital Products Holdings LLC 15.38% SF+ 10.00% Secured Debt (5) — (17) 586 3,878 — 205 3,673 Preferred Member Units (5) — — 50 2,459 — — 2,459 Direct Marketing Solutions, Inc. 14.00% Secured Debt (9) — (2) 13 — 227 10 217 14.00% Secured Debt (9) — (19) 730 5,352 19 369 5,002 Preferred Stock (9) — (380) 43 5,558 — 378 5,180 Flame King Holdings, LLC L+ 6.50% Secured Debt (9) — (15) 121 1,900 15 1,915 — L+ 9.00% Secured Debt (9) — (123) 478 5,300 123 5,423 — Preferred Equity (9) — 2,570 814 4,400 2,570 — 6,970 Freeport Financial Funds LP Interests (Freeport First Lien Loan Fund III LP) (12) (5) — — 598 5,848 — 2,143 3,705 Gamber-Johnson Holdings, LLC SF+ 7.50% Secured Debt (12) (5) — — 2 — — — — 10.50% SF+ 7.50% Secured Debt (5) — (88) 1,727 16,020 88 2,588 13,520 Member Units (5) — 11,460 1,491 12,720 11,460 — 24,180 GFG Group, LLC 8.00% Secured Debt (5) — (25) 263 2,836 25 525 2,336 Preferred Member Units (5) — 1,080 200 1,790 1,080 — 2,870 Gulf Publishing Holdings, LLC SF+ 9.50% Secured Debt (12) (8) — — — — — — — 12.50% Secured Debt (8) — — 73 571 — — 571 Preferred Equity (8) — (330) — 950 — 330 620 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 December 31, HPEP 3, L.P. LP Interests (HPEP 3, L.P.) (12) (8) — 156 4 4,331 403 509 4,225 IG Investor, LLC Secured Debt (12) (6) — — 5 — 173 200 (27) 13.00% Secured Debt (6) — — 692 — 9,179 110 9,069 Common Equity (6) — — — — 3,774 174 3,600 Independent Pet Partners Intermediate Holdings, LLC Common Equity (6) — (220) — — 6,540 220 6,320 Integral Energy Services 13.16% SF+ 7.50% Secured Debt (8) — (787) 2,773 18,425 94 2,287 16,232 10.00% 10.00% Preferred Equity (8) — 85 — — 350 — 350 Common Stock (8) — (1,300) 50 1,490 — 1,300 190 Kickhaefer Manufacturing Company, LLC 12.00% Secured Debt (5) — (18) 668 5,093 58 218 4,933 9.00% Secured Debt (5) — — 86 961 — 10 951 Preferred Equity (5) — 620 — 1,800 620 — 2,420 Member Units (5) — (30) 29 713 — 30 683 Market Force Information, LLC L+ 11.00% Secured Debt (9) (6,465) 6,060 — 403 6,060 6,463 — Member Units (9) (4,160) 4,160 — — 4,160 4,160 — MH Corbin Holding LLC 13.00% Secured Debt (5) — 307 190 1,137 308 189 1,256 Preferred Member Units (5) — 80 — — 80 — 80 Preferred Member Units (5) — — — — — — — Mystic Logistics Holdings, LLC Secured Debt (12) (6) — — 1 — — — — 10.00% Secured Debt (6) — — 146 1,436 — — 1,436 Common Stock (6) — 890 1,131 5,708 890 — 6,598 NexRev LLC 10.00% Secured Debt (12) (8) — — — — — — — 10.00% Secured Debt (8) — 708 289 2,119 729 413 2,435 Preferred Member Units (8) — 1,310 166 280 1,310 — 1,590 NuStep, LLC 11.98% SF+ 6.50% Secured Debt (5) — (2) 120 1,100 1 202 899 12.00% Secured Debt (5) — — 564 4,603 3 — 4,606 Preferred Member Units (5) — 300 — 2,010 300 — 2,310 Preferred Member Units (5) — — — 1,290 — — 1,290 Oneliance, LLC 16.48% SF+ 11.00% Secured Debt (7) — (7) 231 1,380 6 47 1,339 Preferred Stock (7) — — — 264 18 — 282 Orttech Holdings, LLC SF+ 11.00% Secured Debt (12) (5) — 2 1 (2) 2 — — 16.48% SF+ 11.00% Secured Debt (5) — 58 955 5,814 86 390 5,510 Preferred Stock (5) — 1,320 274 2,940 1,320 — 4,260 Pinnacle TopCo, LLC 8.00% Secured Debt (12) (8) — — 1 — 105 — 105 13.00% Secured Debt (8) — — 34 — 7,472 — 7,472 Preferred Equity (8) — — — — 3,135 — 3,135 Robbins Bros. Jewelry, Inc. 12.50% Secured Debt (9) — — 4 (8) 2 — (6) 12.50% Secured Debt (9) — (323) 507 3,902 18 499 3,421 Preferred Equity (9) — (1,650) — 1,650 — 1,650 — SI East, LLC 11.25% Secured Debt (12) (7) — 6 28 — 625 250 375 12.47% Secured Debt (7) — 161 1,278 — 18,179 — 18,179 9.50% Secured Debt (7) — (134) 1,403 29,929 — 29,929 — Preferred Member Units (7) — 1,737 399 4,550 1,840 — 6,390 Student Resource Center, LLC 8.50% 8.50% Secured Debt (6) — (1,881) 364 5,063 244 1,764 3,543 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 December 31, Preferred Equity (6) — — — — — — — Tedder Industries, LLC 12.00% Secured Debt (9) — (28) 56 460 — 28 432 12.00% Secured Debt (9) — (218) 466 3,780 3 218 3,565 Preferred Member Units (9) — (1,920) — 1,920 — 1,920 — Preferred Member Units (9) — (141) — — 124 124 — Preferred Member Units (9) — (165) — — 165 165 — Trantech Radiator Topco, LLC 8.00% Secured Debt (12) (7) — (2) 3 — 2 2 — 12.00% Secured Debt (7) — (14) 255 1,980 14 14 1,980 Common Stock (7) — 1,230 29 1,950 1,230 — 3,180 VVS Holdco LLC SF+ 6.00% Secured Debt (12) (5) — — 10 (5) 5 — — 11.50% Secured Debt (5) — — 904 7,421 55 550 6,926 Preferred Equity (5) — (30) 54 2,990 100 30 3,060 Other (1,541) 649 (151) — — — — Total Affiliate investments $ (7,188) $ 25,116 $ 29,805 $ 277,000 $ 115,308 $ 101,029 $ 291,279 ___________________________________________________ (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 8. Consolidated Financial Statements of this Annual Report on Form 10-K. (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 to or 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 December 31, 2023 for affiliate investments located in this region was $107,201. This represented 17.2% of net assets as of December 31, 2023. (6) Portfolio company located in the Northeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2023 for affiliate investments located in this region was $38,466. This represented 6.2% of net assets as of December 31, 2023. (7) Portfolio company located in the Southeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2023 for affiliate investments located in this region was $31,725. This represented 5.1% of net assets as of December 31, 2023. (8) Portfolio company located in the Southwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2023 for control investments located in this region was $53,076. This represented 8.5% of net assets as of December 31, 2023. The fair value as of December 31, 2023 for affiliate investments located in this region was $86,332. This represented 13.9% of net assets as of December 31, 2023. (9) Portfolio company located in the West region as determined by location of the corporate headquarters. The fair value as of December 31, 2023 for control investments located in this region was $568. This represented 0.1% of net assets as of December 31, 2023. The fair value as of December 31, 2023 for affiliate investments located in this region was $27,555. This represented 4.4% of net assets as of December 31, 2023. (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 8. Consolidated Financial Statements of this Annual Report on Form 10-K. 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 December 31, 2023 (see Note J — Commitments and Contingencies in Item 8. Consolidated Financial Statements of this Annual Report on Form 10-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 December 31, Control Investments GRT Rubber Technologies LLC 10.12% L+ 6.00% Secured Debt (8) $ — $ 6 $ 7 $ — $ 330 $ — $ 330 12.12% L+ 8.00% Secured Debt (8) — (32) 1,972 19,152 824 33 19,943 Member Units (8) — (860) 1,244 22,750 — 860 21,890 Harris Preston Fund Investments LP Interests (2717 MH, L.P.) (8) — 2,389 — 3,971 3,581 — 7,552 Copper Trail Fund Investments LP Interests (CTMH, LP) (9) — — — 710 — 122 588 Other — — — — — — — Total Control Investments $ — $ 1,503 $ 3,223 $ 46,583 $ 4,735 $ 1,015 $ 50,303 Affiliate Investments AFG Capital Group, LLC 10.00% Secured Debt (8) $ — $ — $ 1 $ 36 $ — $ 36 $ — Preferred Member Units (8) — 420 50 1,930 420 — 2,350 Analytical Systems Keco Holdings, LLC L+ 10.00% Secured Debt (8) — — 2 (4) 2 — (2) 14.13% L+ 10.00% Secured Debt (8) — — 174 1,182 23 70 1,135 14.13% Preferred Member Units (8) — — — — — — — Preferred Member Units (8) — (340) — 1,220 — 340 880 Warrants (8) — — — — — — — ATX Networks Corp. 12.23% L+ 7.50% Secured Debt (6) — 135 756 7,121 364 1,117 6,368 10.00% 10.00% Unsecured Debt (6) — 309 327 1,977 637 — 2,614 Common Stock (6) — 3,290 — — 3,290 — 3,290 Barfly Ventures, LLC Member Units (5) — 463 — 643 464 — 1,107 Batjer TopCo, LLC Secured Debt (8) — — — — 50 51 (1) 11.00% Secured Debt (8) — — 116 — 1,205 — 1,205 Preferred Stock (8) — — 70 — 455 — 455 Brewer Crane Holdings, LLC 14.12% L+ 10.00% Secured Debt (9) — — 220 2,005 10 524 1,491 Preferred Member Units (9) — (160) 207 1,930 — 160 1,770 Centre Technologies Holdings, LLC L+ 9.00% Secured Debt (8) — — 7 — 360 360 — 13.13% L+ 9.00% Secured Debt (8) — 115 445 2,216 1,612 97 3,731 Preferred Member Units (8) — 639 30 1,460 710 — 2,170 Chamberlin Holding LLC L+ 6.00% Secured Debt (8) — — 2 — — — — 12.13% L+ 8.00% Secured Debt (8) — (42) 486 4,454 42 260 4,236 Member Units (8) — (300) 463 6,030 — 302 5,728 Member Units (8) — 180 19 385 293 — 678 Charps, LLC Preferred Member Units (5) — (170) 190 3,500 — 170 3,330 Clad-Rex Steel, LLC SF+ 9.00% Secured Debt (5) — — 1 — — — — 13.23% SF+ 9.00% Secured Debt (5) — — 304 2,620 — — 2,620 10.00% Secured Debt (5) — — 27 268 — 8 260 Member Units (5) — (500) 190 2,560 — 500 2,060 Member Units (5) — 20 — 133 19 — 152 Cody Pools, Inc. 15.38% L+ 10.50% Secured Debt (8) — 11 20 (6) 1,033 754 273 15.38% L+ 10.50% Secured Debt (8) — (30) 963 7,187 30 335 6,882 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 December 31, Preferred Member Units (8) — 2,640 1,004 11,910 2,640 — 14,550 Colonial Electric Company LLC Secured Debt (6) — — 12 — 400 400 — 12.00% Secured Debt (6) — — 761 6,007 37 315 5,729 Preferred Member Units (6) — 10 349 2,280 10 — 2,290 Datacom, LLC 7.50% Secured Debt (8) — — — — 25 — 25 7.50% Secured Debt (8) — 20 98 852 43 30 865 Preferred Member Units (8) — 10 11 290 10 — 300 Digital Products Holdings LLC 14.13% L+ 10.00% Secured Debt (5) — — 510 4,186 22 330 3,878 Preferred Member Units (5) — — 50 2,459 — — 2,459 Direct Marketing Solutions, Inc. L+ 11.00% Secured Debt (9) — 5 42 (7) 757 750 — 15.13% L+ 11.00% Secured Debt (9) — 46 — — 5,352 — 5,352 L+ 11.00% Secured Debt (9) — (54) 661 4,705 — 4,705 — Preferred Stock (9) — 970 343 4,590 968 — 5,558 Flame King Holdings, LLC 10.75% L+ 6.50% Secured Debt (9) — 15 167 1,581 319 — 1,900 13.25% L+ 9.00% Secured Debt (9) — 123 706 5,145 155 — 5,300 Preferred Equity (9) — 1,800 538 2,600 1,800 — 4,400 Freeport Financial Funds LP Interests (Freeport First Lien Loan Fund III LP) (5) — (57) 421 7,231 — 1,383 5,848 Gamber-Johnson Holdings, LLC SF+ 8.50% Secured Debt (5) — — 2 — — — — 11.50% SF+ 8.50% Secured Debt (5) — 272 113 — 16,020 — 16,020 L+ 7.50% Secured Debt (5) — (17) 559 5,400 — 5,400 — Member Units (5) — 290 224 12,430 290 — 12,720 GFG Group, LLC 9.00% Secured Debt (5) — (26) 329 3,136 26 326 2,836 Preferred Member Units (5) — 40 144 1,750 40 — 1,790 Gulf Publishing Holdings, LLC L+ 9.50% Secured Debt (8) — — 2 64 — 64 — 6.25% Secured Debt (8) (1,455) 962 126 2,429 — 2,429 — 12.50% Secured Debt (8) — (29) 19 — 600 29 571 Member Units (8) — — — — — — — Preferred Equity (8) — (450) — — 1,400 450 950 HPEP 3, L.P. LP Interests (HPEP 3, L.P.) (8) 779 254 (50) 4,712 587 968 4,331 Kickhaefer Manufacturing Company, LLC 11.50% Secured Debt (5) — 18 630 5,040 53 — 5,093 9.00% Secured Debt (5) — — 88 970 — 9 961 Preferred Equity (5) — (1,280) — 3,080 — 1,280 1,800 Member Units (5) — 98 28 615 99 1 713 Market Force Information, LLC 12.00% 12.00% Secured Debt (9) — (1,831) — 2,234 — 1,831 403 Member Units (9) — — — — — — — MH Corbin Holding LLC 13.00% Secured Debt (5) — 175 250 1,484 177 524 1,137 Preferred Member Units (5) — — — — — — — Preferred Member Units (5) — — — — — — — Mystic Logistics Holdings, LLC Secured Debt (6) — — 1 — — — — 10.00% Secured Debt (6) — — 152 1,595 — 159 1,436 Common Stock (6) — 3,500 1,050 2,210 3,498 — 5,708 NexRev LLC Secured Debt (8) — — 7 199 — 199 — 11.00% Secured Debt (8) — (188) 486 3,311 — 1,192 2,119 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 December 31, Preferred Member Units (8) — (723) 20 670 333 723 280 NuStep, LLC 10.63% L+ 6.50% Secured Debt (5) — 2 78 430 670 — 1,100 12.00% Secured Debt (5) — (1) 545 4,310 294 1 4,603 Preferred Member Units (5) — (1,370) — 3,380 — 1,370 2,010 Preferred Member Units (5) — 775 — — 1,290 — 1,290 Oneliance, LLC 15.13% L+ 11.00% Secured Debt (7) — — 190 1,374 6 — 1,380 Preferred Stock (7) — — 1 264 — — 264 Orttech Holdings, LLC L+ 11.00% Secured Debt (5) — — 5 41 1 44 (2) 15.13% L+ 11.00% Secured Debt (5) — — 815 5,937 27 150 5,814 Preferred Stock (5) — 440 225 2,500 440 — 2,940 Robbins Bros. Jewelry, Inc. Secured Debt (9) — — 5 — 2 10 (8) 12.50% Secured Debt (9) — — 529 — 3,977 75 3,902 Preferred Equity (9) — 420 62 — 1,650 — 1,650 SI East, LLC Secured Debt (7) — — 78 750 1,250 2,000 — 9.50% Secured Debt (7) — 76 2,708 21,200 10,375 1,646 29,929 Preferred Member Units (7) — 690 216 3,860 690 — 4,550 Sonic Systems International, LLC 11.24% L+ 7.50% Secured Debt (8) — 282 1,676 13,738 4,687 — 18,425 Common Stock (8) — (94) 50 1,250 334 94 1,490 Student Resource Center, LLC 13.27% L+ 8.50% Secured Debt (6) — — — — 5,063 — 5,063 Secured Debt (6) (6,651) 4,438 12 — 6,524 6,524 — Preferred Equity (6) — — — — — — — Tedder Industries, LLC 12.00% Secured Debt (9) — — 55 259 201 — 460 12.00% Secured Debt (9) — (17) 505 3,754 43 17 3,780 Preferred Member Units (9) — (391) — 2,145 166 391 1,920 Trantech Radiator Topco, LLC Secured Debt (7) — 3 3 (6) 6 — — 12.00% Secured Debt (7) — (17) 273 2,180 17 217 1,980 Common Stock (7) — (210) 29 2,160 — 210 1,950 VVS Holdco LLC L+ 6.00% Secured Debt (5) — — 13 292 203 500 (5) 11.50% Secured Debt (5) — — 932 7,375 46 — 7,421 Preferred Equity (5) — 30 129 2,960 30 — 2,990 Other — — — — — — — Total Affiliate investments $ (7,327) $ 15,689 $ 24,057 $ 234,158 $ 84,672 $ 41,830 $ 277,000 ___________________________________________________ (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 8. Consolidated Financial Statements of this Annual Report on Form 10-K. (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 to or 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 December 31, 2022 for affiliate investments located in this region was $92,945. This represented 15.2% of net assets as of December 31, 2022. (6) Portfolio company located in the Northeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2022 for affiliate investments located in this region was $32,498. This represented 5.3% of net assets as of December 31, 2022. (7) Portfolio company located in the Southeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2022 for affiliate investments located in this region was $40,053. This represented 6.6% of net assets as of December 31, 2022. (8) Portfolio company located in the Southwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2022 for control investments located in this region was $49,715. This represented 8.2% of net assets as of December 31, 2022. The fair value as of December 31, 2022 for affiliate investments located in this region was $73,626. This represented 12.1% of net assets as of December 31, 2022. (9) Portfolio company located in the West region as determined by location of the corporate headquarters. The fair value as of December 31, 2022 for control investments located in this region was $588. This represented 0.1% of net assets as of December 31, 2022. The fair value as of December 31, 2022 for affiliate investments located in this region was $37,878. This represented 6.2% of net assets as of December 31, 2022. (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 8. Consolidated Financial Statements of this Annual Report on Form 10-K. 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 December 31, 2022 (see Note J — Commitments and Contingencies in Item 8. Consolidated Financial Statements of this Annual Report on Form 10-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.

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N-2 - $ / shares		12 Months Ended
	Dec. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cover [Abstract]
Entity Central Index Key		0001535778
Amendment Flag		false
Securities Act File Number		814-00939
Document Type		10-K
Entity Registrant Name		MSC Income Fund, Inc.
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 Well-known Seasoned Issuer		No
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 Private Loan (as defined below), LMM and Middle Market investment strategies. 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. Our LMM investment strategy involves investments in companies that generally have annual revenues between $10 million and $150 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. Our Private Loan, LMM and Middle Market investments generally range in size from $1 million to $20 million. Private Loan investments primarily consist of debt securities that have primarily been originated directly by our Adviser or, to a lesser extent, through our Adviser’s 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 support 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 Main Street and the private equity sponsors in the equity securities of our Private Loan portfolio companies. 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. 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 by the issuer 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. Our other portfolio (“Other Portfolio”) investments primarily consist of investments that are not consistent with the typical profiles for our Private Loan, LMM 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. Our portfolio investments are generally made through MSIF, the Taxable Subsidiaries and the Structured Subsidiaries. MSIF, the Taxable Subsidiaries and the Structured Subsidiaries share the same investment strategies and criteria. An investor’s return in MSIF will depend, in part, on the Taxable Subsidiaries’ and the Structured Subsidiaries’ investment returns as they are wholly-owned subsidiaries of MSIF. 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 and our available liquidity. 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. We have received an exemptive order from the SEC permitting co-investments among us, Main Street and other funds and clients advised by our Adviser 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 Main Street and other funds and clients advised by our Adviser, in accordance with the conditions of the order. The order requires, among other things, that we and our Adviser consider whether each such investment opportunity is appropriate for us, Main Street and the other funds and clients advised by our Adviser, as applicable, and if it is appropriate, to propose an allocation of the investment opportunity between such parties. Because our Adviser is wholly-owned by Main Street and is not managing our investment activities as its sole activity, this may provide our Adviser an incentive to allocate opportunities to Main Street, other participating funds and other clients instead of us. However, our Adviser has 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 Investing in our securities involves a number of significant risks. In addition to the other information contained in this Annual Report on Form 10-K, you should consider carefully the following information before making an investment in our securities. The risks set out below are not the only risks we face. Additional risks and uncertainties not presently known to us or not presently deemed material by us might also impair our operations and performance. If any of the following events occur, our business, financial condition and results of operations could be materially and adversely affected. In such case, our NAV and the value of our other securities could decline, and you may lose all or part of your investment. SUMMARY OF RISK FACTORS The following is a summary of the principal risk factors associated with an investment in our securities. Further details regarding each risk included in the below summary list can be found further below. Risks Related to our Business and Structure • Because our Investment Portfolio is recorded at fair value, there is and will continue to be uncertainty as to the value of our portfolio investments. • Our financial condition and results of operations depends on our Adviser’s ability to effectively manage and deploy capital. • We are subject to risks associated with the interest rate environment and changes in interest rates will affect our cost of capital, net investment income and the value of our investments. • We face increasing competition for investment opportunities. • We are dependent upon our Adviser’s key investment personnel for our future success. • Our success depends on our Adviser’s ability to attract and retain qualified personnel in a competitive environment. • We may not replicate the historical results achieved by Main Street or by other entities managed by our Adviser. • Our business model depends to a significant extent upon strong referral relationships. • Our Board of Directors may change our operating policies and strategies without prior notice or stockholder approval, the effects of which may be adverse. Risks Related to our Investments • The types of portfolio companies in which we invest involve significant risks and we could lose all or part of our investment. • Economic recessions or downturns could impair our portfolio companies’ performance and defaults by our portfolio companies will harm our operating results. • Rising credit spreads could affect the value of our investments, and rising interest rates make it more difficult for portfolio companies to make periodic payments on their loans. • Inflation could adversely affect the business, results of operations and financial condition of our portfolio companies. • We may be exposed to higher risks with respect to our investments that include original issue discount or PIK interest. • The lack of liquidity in our investments may adversely affect our business. • We may not have the funds or ability to make additional investments in our portfolio companies. • There may be circumstances where our debt investments could be subordinated to claims of other creditors or we could be subject to lender liability claims. • We generally will not control our portfolio companies. • Defaults by our portfolio companies will harm our operating results. • Any unrealized depreciation that we experience in our portfolio may be an indication of future realized losses, which could reduce our income and gains available for distribution. • Prepayments of our debt investments by our portfolio companies could adversely impact our results of operations and reduce our return on equity. • The discontinuation and replacement of LIBOR may adversely affect the value of floating-rate debt securities in our portfolio or issued by us. • We may be subject to risks associated with “covenant-lite” loans. • We may not realize gains from our equity investments. Risks Related to Leverage • Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us. • All of our assets are subject to security interests under our senior securities and if we default on our obligations under our senior securities, we may suffer adverse consequences, including foreclosure on our assets. • We are subject to risks associated with any revolving credit facility that utilizes a Structured Subsidiary as our interests in any Structured Subsidiary are subordinated and we could be prevented from receiving cash on our equity interests from a Structured Subsidiary. Risks Related to our Adviser and its Affiliates • Our Adviser has conflicts of interest that may create an incentive for the Adviser to enter into investments that are riskier or more speculative than would otherwise be the case and our Adviser may have an incentive to increase portfolio leverage in order to earn higher management fees. • We may be obligated to pay our Adviser incentive compensation even if we incur a net loss due to a decline in the value of our portfolio. • Our Adviser may face conflicts of interest in allocating investment opportunities between us, Main Street and the other funds and accounts managed by our Adviser. • Our Adviser’s liability is limited under the Investment Advisory Agreement, and we have agreed to indemnify our Adviser against certain liabilities, which may lead our Adviser to act in a riskier manner on our behalf than it would when acting for its own account. • Our Adviser can resign on 120 days’ notice and we may not be able to find a suitable replacement within that time, resulting in a disruption in our operations that could adversely affect our financial condition, business and results of operations. Risks Related to BDCs • Operating under the constraints imposed on us as a BDC and RIC may hinder the achievement of our investment objectives. Risks Related to our Securities • Investing in our securities may involve a high degree of risk. • Our shares of common stock are not listed on an exchange or quoted through a quotation system and may not be listed in the foreseeable future, if ever. Therefore, our stockholders will have limited liquidity and may not receive a full return of their invested capital if they sell their shares of common stock. • Our share repurchase program allows us to repurchase our stockholders’ shares on a quarterly basis, subject to certain restrictions and limitations. As a result, our stockholders will have limited opportunities to sell their shares and, to the extent they are able to sell their shares under the program, our stockholders may not be able to recover the amount of their investment in our shares. • Our repurchase offers pursuant to our share repurchase program may be at prices lower than the price paid by our stockholders to purchase our common stock. • We may not be able to pay distributions to our stockholders, our distributions may not grow over time, and a portion of distributions paid to our stockholders may be a return of capital. Federal Income Tax Risks • We will be subject to corporate-level U.S. federal income tax if we are unable to qualify as a RIC under Subchapter M of the Code. • We may have difficulty paying the distributions required to maintain RIC tax treatment under the Code if we recognize income before or without receiving cash representing such income. General Risk Factors • Events outside of our control, including public health crises, supply chain disruptions and inflation, could negatively affect our portfolio companies and the results of our operations. • We are currently operating in a period of capital markets disruption and economic uncertainty, and capital markets may experience periods of disruption and instability in the future. • Failure to comply with applicable laws or regulations and changes in laws or regulations governing our operations may adversely affect our business or cause us to alter our business strategy. • We are highly dependent on information systems and systems failures could significantly disrupt our business. RISKS RELATED TO OUR BUSINESS AND STRUCTURE Because our Investment Portfolio is recorded at fair value, there is and will continue to be uncertainty as to the value of our portfolio investments. Under the 1940 Act, we are required to carry our portfolio investments at market value or, if there is no readily available market value, at fair value as determined by us pursuant to procedures established and overseen by our Board of Directors. Typically, there is not a public market for the securities of the privately held companies in which we invest through our Private Loan and LMM investment strategies. As a result, we value these securities quarterly at fair value based on inputs from management and a nationally recognized independent financial advisory services firm (on a rotational basis) pursuant to Valuation Procedures approved by our Board of Directors. In addition, the market for investments in companies that we invest through our Middle Market investment strategy is generally not a liquid market, and therefore, we primarily use 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, pursuant to our Valuation Procedures. See Note B.1. — Summary of Significant Accounting Policies — Valuation of the Investment Portfolio included in Item 8. Consolidated Financial Statements and Supplementary Data of this Annual Report on Form 10-K for a detailed discussion of our Investment Portfolio valuation process and procedures. The determination of fair value and consequently, the amount of unrealized gains and losses in our portfolio, are to a certain degree, subjective and dependent on a valuation process approved by our Board of Directors. Certain factors that may be considered in determining the fair value of our investments include external events, such as private mergers, sales and acquisitions involving comparable companies. Because such valuations, and particularly valuations of securities in privately held companies, are inherently uncertain, may fluctuate over short periods of time and may be based on estimates, our determinations of fair value may differ materially from the values that would have been used if a ready market for these securities existed. Due to this uncertainty, our fair value determinations may cause our NAV on a given date to materially understate or overstate the value that we may ultimately realize on one or more of our investments. As a result, investors purchasing our securities based on an overstated NAV would pay a higher price than the value of our investments might warrant. Conversely, investors selling our securities during a period in which the NAV understates the value of our investments may receive a lower price for their securities than the value of our investments might warrant. Our financial condition and results of operations depends on our Adviser’s ability to effectively manage and deploy capital. Our ability to achieve our investment objective of maximizing 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, depends on our Adviser’s ability to effectively manage and deploy capital, which depends, in turn, on our Adviser’s investment team’s ability to identify, evaluate and monitor, and our ability to finance and invest in, companies that meet our investment criteria. Accomplishing our investment objective on a cost-effective basis is largely a function of our investment team’s handling of the investment process, its ability to provide competent, attentive and efficient services and our access to investments offering acceptable terms. In addition to monitoring the performance of our existing investments, members of our investment team are also called upon, from time to time, to provide managerial assistance to some of our portfolio companies. These demands on their time may distract them or slow the rate of investment. Even if we are able to grow and build upon our investment operations, any failure to manage our growth effectively could have a material adverse effect on our business, financial condition, results of operations and prospects. The results of our operations will depend on many factors, including the availability of opportunities for investment, readily accessible short and long-term funding alternatives in the financial markets and economic conditions. Furthermore, if our Adviser cannot successfully operate our business or implement our investment policies and strategies as described herein, it could negatively impact our ability to pay dividends. We are subject to risks associated with the interest rate environment and changes in interest rates will affect our cost of capital, net investment income and the value of our investments. To the extent we borrow money or issue debt securities or preferred stock to make investments, our net investment income will depend, in part, upon the difference between the rate at which we borrow funds or pay interest or dividends on such debt securities or preferred stock and the rate at which we invest these funds. In addition, many of our debt investments and borrowings have floating interest rates that reset on a periodic basis, and many of our investments are subject to interest rate floors. As a result, a change in market interest rates could have a material adverse effect on our net investment income. In periods of rising interest rates, our cost of funds will increase because the interest rates on the amounts borrowed under our credit facilities are floating, and any new fixed rate debt may be issued at higher coupon rates, which could reduce our net investment income to the extent any debt investments have either fixed interest rates, or in periods when debt investments with floating interest rates are subject to an interest rate floor above then current levels. In periods of declining interest rates, our interest income and our net investment income could be reduced as the interest income earned on our floating rate debt investments declines and any new fixed rate debt may be issued at lower coupon rates. See further discussion and analysis at Item 7A. Quantitative and Qualitative Disclosures about Market Risk . We can use interest rate risk management techniques in an effort to limit our exposure to interest rate fluctuations. Such techniques could include various interest rate hedging activities to the extent permitted by the 1940 Act and applicable commodities laws. These activities could limit our ability to participate in the benefits of lower interest rates with respect to the hedged borrowings. Adverse developments resulting from changes in interest rates or hedging transactions could have a material adverse effect on our business, financial condition and results of operations. An increase in the market pricing of the spreads charged over index rates on floating rate investments could lead to a decline in the fair value of the debt securities we own, which would adversely affect our NAV. Also, an increase in interest rates available to investors could make an investment in our common stock less attractive if we are not able to increase our dividends, which could reduce the value of our common stock. We face increasing competition for investment opportunities. We compete for investments with other investment funds (including private equity funds, debt funds, mezzanine funds, collateralized loan obligation funds, or CLOs, BDCs and SBICs), as well as traditional financial services companies such as commercial banks and other sources of funding. Many of our competitors are substantially larger and have considerably greater financial, technical and marketing resources than we do. For example, some competitors may have a lower cost of capital and access to funding sources that are not available to us. In addition, some of our competitors may have higher risk tolerances or different risk assessments than we have. These characteristics could allow our competitors to consider a wider variety of investments, establish more relationships and offer better pricing and more flexible structuring than we are able to do. We may lose investment opportunities if we do not match our competitors’ pricing, terms and structure. If we are forced to match our competitors’ pricing, terms and structure, we may not be able to achieve acceptable returns on our investments or may bear substantial risk of capital loss. A significant part of our competitive advantage stems from the fact that the market for investments in LMM companies is underserved by traditional commercial banks and other financing sources. A significant increase in the number and/or the size of our competitors in this target market could force us to accept less attractive investment terms. Furthermore, many of our competitors are not subject to the regulatory restrictions that the 1940 Act imposes on us as a BDC. We are dependent upon our Adviser’s key investment personnel for our future success. We depend on the members of our Adviser’s investment team, particularly Dwayne L. Hyzak, David L. Magdol, Jesse E. Morris, Jaime Arreola, K. Colton Braud, III, Damian T. Burke, Samuel A. Cashiola, Diego Fernandez and Nicholas T. Meserve for the identification, review, final selection, structuring, closing and monitoring of our investments. These individuals have significant investment expertise and relationships that we rely on to implement our business plan. Although these executive officers and other key personnel have entered into non-compete arrangements with our Adviser or an affiliate of our Adviser, we cannot guarantee that any of these individuals will remain available to us. If we lose the services of the individuals mentioned above, we may not be able to operate our business as we expect, and our ability to compete could be harmed, which could cause our operating results to suffer. Our success depends on our Adviser’s ability to attract and retain qualified personnel in a competitive environment. Our growth will require that our Adviser is able to retain new investment and administrative personnel in a competitive market. Our Adviser’s ability to attract and retain personnel with the requisite credentials, experience and skills depends on several factors including, but not limited to, our ability to offer competitive wages, benefits and professional growth opportunities. Many of the entities, including investment funds (such as private equity funds, debt funds and mezzanine funds) and traditional financial services companies, with which our Adviser competes for experienced personnel have greater resources than our Adviser has. The competitive environment for qualified personnel may require our Adviser to take certain measures to ensure that it is able to attract and retain experienced personnel. Such measures may include increasing the attractiveness of its overall compensation packages, altering the structure of its compensation packages through the use of additional forms of compensation, or other steps. The inability of our Adviser to attract and retain experienced personnel would have a material adverse effect on our business. We may not replicate the historical results achieved by Main Street or by other entities managed by our Adviser. Although our primary focus in making investments is similar to that of Main Street, the parent company of our Adviser, we cannot assure stockholders that we will be able to replicate the historical results achieved by Main Street or other investment funds or accounts managed by our Adviser. Because of the differences in our business structure and portfolio composition, our investment returns could be substantially lower than the returns achieved by Main Street or other investment funds or accounts managed by our Adviser in prior periods. Additionally, all or a portion of the prior results may have been achieved in particular market conditions that may never be repeated. Moreover, current or future market volatility and regulatory uncertainty may have an adverse impact on our future performance. Our business model depends to a significant extent upon strong referral relationships. We expect that members of our management team will maintain their relationships with intermediaries, financial institutions, investment bankers, commercial bankers, financial advisors, attorneys, accountants, consultants and other individuals within our network, and we will rely to a significant extent upon these relationships to provide us with potential investment opportunities. If our management team fails to maintain its existing relationships or develop new relationships with sources of investment opportunities, we will not be able to grow our Investment Portfolio. In addition, individuals with whom members of our management team have relationships are not obligated to provide us with investment opportunities, and, therefore, there is no assurance that such relationships will generate investment opportunities for us. Our Board of Directors may change our operating policies and strategies without prior notice or stockholder approval, the effects of which may be adverse. Our Board of Directors has the authority to modify or waive our current operating policies, investment criteria and strategies without prior notice and without stockholder approval. We cannot predict the effect any changes to our current operating policies, investment criteria and strategies would have on our business, NAV, operating results and value of our stock. However, the effects might be adverse, which could negatively impact our ability to pay interest and principal payments to holders of our debt instruments and dividends to our stockholders and cause our investors to lose all or part of their investment in us. We are a non-diversified investment company within the meaning of the 1940 Act, and therefore we are not limited with respect to the proportion of our assets that may be invested in securities of a single issuer. We are classified as a non-diversified investment company within the meaning of the 1940 Act, which means that we are not limited by the 1940 Act with respect to the proportion of our assets that we may invest in securities of a single issuer. Under the 1940 Act, a “diversified” investment company is required to invest at least 75% of the value of its total assets in cash and cash items, government securities, securities of other investment companies and other securities limited in respect of any one issuer to an amount not greater than 5% of the value of the total assets of such company and no more than 10% of the outstanding voting securities of such issuer. As a non-diversified investment company, we are not subject to this requirement. To the extent that we assume large positions in the securities of a small number of issuers, our NAV may fluctuate to a greater extent than that of a diversified investment company as a result of changes in the financial condition or the market’s assessment of the issuer. We may also be more susceptible to any single economic or regulatory occurrence than a diversified investment company. Beyond our RIC asset diversification requirements, we do not have fixed guidelines for diversification, and our investments could be concentrated in relatively few portfolio companies. See Risk Factors — Federal Income Tax Risks — We will be subject to corporate-level U.S. federal income tax if we are unable to qualify as a RIC under Subchapter M of the Code. We and our portfolio companies may maintain cash balances at financial institutions that exceed federally insured limits and may otherwise be materially affected by adverse developments affecting the financial services industry, such as actual events or concerns involving liquidity, defaults or non-performance by financial institutions or transactional counterparties. Cash held by us and by our portfolio companies in non-interest-bearing and interest-bearing operating accounts may exceed the Federal Deposit Insurance Corporation (“FDIC”) insurance limits. If such banking institutions were to fail, we or our portfolio companies could lose all or a portion of those amounts held in excess of such insurance limitations. In addition, actual events involving limited liquidity, defaults, non-performance or other adverse developments that affect financial institutions, transactional counterparties or other companies in the financial services industry or the financial services industry generally, or concerns or rumors about any events of these kinds or other similar risks, have in the past and may in the future lead to market-wide liquidity problems, which could adversely affect our and our portfolio companies’ business, financial condition, results of operations or prospects. Although we assess our portfolio companies’ banking relationships as we believe necessary or appropriate, our and our portfolio companies’ access to funding sources and other credit arrangements in amounts adequate to finance or capitalize our respective current and projected future business operations could be significantly impaired by factors that affect us or our portfolio companies, the financial institutions with which we or our portfolio companies have arrangements directly or the financial services industry or economy in general. These factors could include, among others, events such as liquidity constraints or failures, the ability to perform obligations under various types of financial, credit or liquidity agreements or arrangements, disruptions or instability in the financial services industry or financial markets or concerns or negative expectations about the prospects for companies in the financial services industry. These factors could involve financial institutions or financial services industry companies with which we or our portfolio companies have financial or business relationships, but could also include factors involving financial markets or the financial services industry generally. In addition, investor concerns regarding the U.S. or international financial systems could result in less favorable commercial financing terms, including higher interest rates or costs and tighter financial and operating covenants or systemic limitations on access to credit and liquidity sources, thereby making it more difficult for us or our portfolio companies to acquire financing on acceptable terms or at all. We are subject to risks related to corporate social responsibility. Our business faces increasing public scrutiny related to environmental, social and governance (“ESG”) activities. We risk damage to our brand and reputation if we or our Adviser fail to act responsibly in a number of areas, such as diversity and inclusion, environmental stewardship, support for local communities, corporate governance and transparency and considering ESG factors in our investment processes. Adverse incidents with respect to ESG activities could impact the value of our brand, the cost of our operations and relationships with investors, all of which could adversely affect our business and results of operations. Additionally, new regulatory initiatives related to ESG could adversely affect our business. RISKS RELATED TO OUR INVESTMENTS The types of portfolio companies in which we invest involve significant risks and we could lose all or part of our investment. Investing in the types of companies that comprise our portfolio companies exposes us to a number of significant risks. Among other things, these companies: • may have limited financial resources and may be unable to meet their obligations under their debt instruments that we hold, which may be accompanied by a deterioration in the value of any collateral and a reduction in the likelihood of us realizing any guarantees from subsidiaries or affiliates of our portfolio companies that we may have obtained in connection with our investment, as well as a corresponding decrease in the value of the equity components of our investments; • may have shorter operating histories, narrower product lines, smaller market shares and/or significant customer concentrations than larger businesses, which tend to render them more vulnerable to competitors’ actions and market conditions, as well as general economic downturns; • are more likely to depend on the management talents and efforts of a small group of persons; therefore, the death, disability, resignation, termination or significant under-performance of one or more of these persons could have a material adverse impact on our portfolio company and, in turn, on us; • generally have less predictable operating results, may from time to time be parties to litigation, may be engaged in rapidly changing businesses with products subject to a substantial risk of obsolescence, and may require substantial additional capital to support their operations, finance expansion or maintain their competitive position; and • generally have less publicly available information about their businesses, operations and financial condition. We are required to rely on the ability of our Adviser’s management team and investment professionals to obtain adequate information to evaluate the potential returns from investing in these companies. If we are unable to uncover all material information about these companies, we may not make a fully informed investment decision, and may lose all or part of our investment. In addition certain of our officers and directors or officers and directors of our Adviser may serve as directors on the boards of our portfolio companies. To the extent that litigation arises out of our investments in these companies, our officers and directors or officers and directors of our Adviser may be named as defendants in such litigation, which could result in an expenditure of funds (through our indemnification of such officers and directors) and the diversion of management time and resources. Economic recessions or downturns could impair our portfolio companies’ performance and defaults by our portfolio companies will harm our operating results. Many of our portfolio companies are susceptible to economic slowdowns or recessions and could be unable to repay our loans during these periods. Therefore, the number of non-performing assets are likely to increase and the value of our portfolio is likely to decrease during these periods. Adverse economic conditions could decrease the value of collateral securing any of our loans and the value of any equity investments. A severe recession could further decrease the value of such collateral and result in losses of value in our portfolio and a decrease in our revenues, net income, assets and net worth. Economic slowdowns or recessions could lead to financial losses in our portfolio and a decrease in revenues, net income and assets. Unfavorable economic conditions also could increase our funding costs, limit our access to the capital markets or result in a decision by lenders not to extend credit to us. These events could prevent us from increasing our investments and harm our operating results. Any deterioration of general economic conditions could lead to significant declines in corporate earnings or loan performance, and the ability of corporate borrowers to service their debt, any of which could trigger a period of global economic slowdown, and have an adverse impact on our performance and financial results, and the value and the liquidity of our investments. In an economic downturn, we could have non-performing assets or an increase in non-performing assets, and we would anticipate that the value of our portfolio would decrease during these periods. Failure to satisfy financial or operating covenants imposed by lenders, including us, to a portfolio company could lead to defaults and, potentially, acceleration of payments on such loans and foreclosure on the assets representing collateral for the portfolio company’s obligations. Cross default provisions under other agreements could be triggered and thus limit the portfolio company’s ability to satisfy its obligations under any debt that we hold and affect the value of any equity securities we own. We would expect to incur expenses to the extent necessary to seek recovery upon default or to negotiate new terms with a portfolio company following or in anticipation of a default. Rising credit spreads
Effects of Leverage [Text Block]		The following table illustrates the effect of leverage on returns from an investment in our common stock assuming various annual returns, net of expenses. The calculations in the table below are hypothetical and actual returns may be higher or lower than those appearing below. Assumed Return on Our Portfolio (1) (net of expenses) (10.0)% (5.0)% 0.0% 5.0% 10.0% Corresponding Net Return to Common Stock Holder (2) (23.8)% (14.7)% (5.5)% 3.6% 12.8% _____________________________ (1) Assumes, as of December 31, 2023, $1,139.9 million in total assets, $485.7 million in debt outstanding, $622.3 million in net assets and a weighted-average interest rate of 7.1%. Actual interest payments may be different. (2) In order for us to cover our annual interest payments on indebtedness, we must achieve annual returns on our December 31, 2023 total assets of at least 3.0%.
Annual Interest Rate [Percent]	7.10%
Annual Coverage Return Rate [Percent]		3%
Return at Minus Ten [Percent]		(23.80%)
Return at Minus Five [Percent]		(14.70%)
Return at Zero [Percent]		(5.50%)
Return at Plus Five [Percent]		3.60%
Return at Plus Ten [Percent]		12.80%
NAV Per Share	$ 7.77	$ 7.77	$ 7.61	$ 7.68	$ 7.28	$ 7.77	$ 7.96
Because our Investment Portfolio is recorded at fair value, there is and will continue to be uncertainty as to the value of our portfolio investments. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Because our Investment Portfolio is recorded at fair value, there is and will continue to be uncertainty as to the value of our portfolio investments. Under the 1940 Act, we are required to carry our portfolio investments at market value or, if there is no readily available market value, at fair value as determined by us pursuant to procedures established and overseen by our Board of Directors. Typically, there is not a public market for the securities of the privately held companies in which we invest through our Private Loan and LMM investment strategies. As a result, we value these securities quarterly at fair value based on inputs from management and a nationally recognized independent financial advisory services firm (on a rotational basis) pursuant to Valuation Procedures approved by our Board of Directors. In addition, the market for investments in companies that we invest through our Middle Market investment strategy is generally not a liquid market, and therefore, we primarily use 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, pursuant to our Valuation Procedures. See Note B.1. — Summary of Significant Accounting Policies — Valuation of the Investment Portfolio included in Item 8. Consolidated Financial Statements and Supplementary Data of this Annual Report on Form 10-K for a detailed discussion of our Investment Portfolio valuation process and procedures. The determination of fair value and consequently, the amount of unrealized gains and losses in our portfolio, are to a certain degree, subjective and dependent on a valuation process approved by our Board of Directors. Certain factors that may be considered in determining the fair value of our investments include external events, such as private mergers, sales and acquisitions involving comparable companies. Because such valuations, and particularly valuations of securities in privately held companies, are inherently uncertain, may fluctuate over short periods of time and may be based on estimates, our determinations of fair value may differ materially from the values that would have been used if a ready market for these securities existed. Due to this uncertainty, our fair value determinations may cause our NAV on a given date to materially understate or overstate the value that we may ultimately realize on one or more of our investments. As a result, investors purchasing our securities based on an overstated NAV would pay a higher price than the value of our investments might warrant. Conversely, investors selling our securities during a period in which the NAV understates the value of our investments may receive a lower price for their securities than the value of our investments might warrant.
Our financial condition and results of operations depends on our ability to effectively manage and deploy capital. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Our financial condition and results of operations depends on our Adviser’s ability to effectively manage and deploy capital. Our ability to achieve our investment objective of maximizing 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, depends on our Adviser’s ability to effectively manage and deploy capital, which depends, in turn, on our Adviser’s investment team’s ability to identify, evaluate and monitor, and our ability to finance and invest in, companies that meet our investment criteria. Accomplishing our investment objective on a cost-effective basis is largely a function of our investment team’s handling of the investment process, its ability to provide competent, attentive and efficient services and our access to investments offering acceptable terms. In addition to monitoring the performance of our existing investments, members of our investment team are also called upon, from time to time, to provide managerial assistance to some of our portfolio companies. These demands on their time may distract them or slow the rate of investment. Even if we are able to grow and build upon our investment operations, any failure to manage our growth effectively could have a material adverse effect on our business, financial condition, results of operations and prospects. The results of our operations will depend on many factors, including the availability of opportunities for investment, readily accessible short and long-term funding alternatives in the financial markets and economic conditions. Furthermore, if our Adviser cannot successfully operate our business or implement our investment policies and strategies as described herein, it could negatively impact our ability to pay dividends.
We are subject to risks associated with the interest rate environment and changes in interest rates will affect our cost of capital, net investment income and the value of our investments. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We are subject to risks associated with the interest rate environment and changes in interest rates will affect our cost of capital, net investment income and the value of our investments. To the extent we borrow money or issue debt securities or preferred stock to make investments, our net investment income will depend, in part, upon the difference between the rate at which we borrow funds or pay interest or dividends on such debt securities or preferred stock and the rate at which we invest these funds. In addition, many of our debt investments and borrowings have floating interest rates that reset on a periodic basis, and many of our investments are subject to interest rate floors. As a result, a change in market interest rates could have a material adverse effect on our net investment income. In periods of rising interest rates, our cost of funds will increase because the interest rates on the amounts borrowed under our credit facilities are floating, and any new fixed rate debt may be issued at higher coupon rates, which could reduce our net investment income to the extent any debt investments have either fixed interest rates, or in periods when debt investments with floating interest rates are subject to an interest rate floor above then current levels. In periods of declining interest rates, our interest income and our net investment income could be reduced as the interest income earned on our floating rate debt investments declines and any new fixed rate debt may be issued at lower coupon rates. See further discussion and analysis at Item 7A. Quantitative and Qualitative Disclosures about Market Risk . We can use interest rate risk management techniques in an effort to limit our exposure to interest rate fluctuations. Such techniques could include various interest rate hedging activities to the extent permitted by the 1940 Act and applicable commodities laws. These activities could limit our ability to participate in the benefits of lower interest rates with respect to the hedged borrowings. Adverse developments resulting from changes in interest rates or hedging transactions could have a material adverse effect on our business, financial condition and results of operations. An increase in the market pricing of the spreads charged over index rates on floating rate investments could lead to a decline in the fair value of the debt securities we own, which would adversely affect our NAV. Also, an increase in interest rates available to investors could make an investment in our common stock less attractive if we are not able to increase our dividends, which could reduce the value of our common stock.
We face increasing competition for investment opportunities. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We face increasing competition for investment opportunities. We compete for investments with other investment funds (including private equity funds, debt funds, mezzanine funds, collateralized loan obligation funds, or CLOs, BDCs and SBICs), as well as traditional financial services companies such as commercial banks and other sources of funding. Many of our competitors are substantially larger and have considerably greater financial, technical and marketing resources than we do. For example, some competitors may have a lower cost of capital and access to funding sources that are not available to us. In addition, some of our competitors may have higher risk tolerances or different risk assessments than we have. These characteristics could allow our competitors to consider a wider variety of investments, establish more relationships and offer better pricing and more flexible structuring than we are able to do. We may lose investment opportunities if we do not match our competitors’ pricing, terms and structure. If we are forced to match our competitors’ pricing, terms and structure, we may not be able to achieve acceptable returns on our investments or may bear substantial risk of capital loss. A significant part of our competitive advantage stems from the fact that the market for investments in LMM companies is underserved by traditional commercial banks and other financing sources. A significant increase in the number and/or the size of our competitors in this target market could force us to accept less attractive investment terms. Furthermore, many of our competitors are not subject to the regulatory restrictions that the 1940 Act imposes on us as a BDC.
We are dependent upon our key investment personnel for our future success. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We are dependent upon our Adviser’s key investment personnel for our future success. We depend on the members of our Adviser’s investment team, particularly Dwayne L. Hyzak, David L. Magdol, Jesse E. Morris, Jaime Arreola, K. Colton Braud, III, Damian T. Burke, Samuel A. Cashiola, Diego Fernandez and Nicholas T. Meserve for the identification, review, final selection, structuring, closing and monitoring of our investments. These individuals have significant investment expertise and relationships that we rely on to implement our business plan. Although these executive officers and other key personnel have entered into non-compete arrangements with our Adviser or an affiliate of our Adviser, we cannot guarantee that any of these individuals will remain available to us. If we lose the services of the individuals mentioned above, we may not be able to operate our business as we expect, and our ability to compete could be harmed, which could cause our operating results to suffer.
Our success depends on our Adviser’s ability to attract and retain qualified personnel in a competitive environment. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Our success depends on our Adviser’s ability to attract and retain qualified personnel in a competitive environment. Our growth will require that our Adviser is able to retain new investment and administrative personnel in a competitive market. Our Adviser’s ability to attract and retain personnel with the requisite credentials, experience and skills depends on several factors including, but not limited to, our ability to offer competitive wages, benefits and professional growth opportunities. Many of the entities, including investment funds (such as private equity funds, debt funds and mezzanine funds) and traditional financial services companies, with which our Adviser competes for experienced personnel have greater resources than our Adviser has. The competitive environment for qualified personnel may require our Adviser to take certain measures to ensure that it is able to attract and retain experienced personnel. Such measures may include increasing the attractiveness of its overall compensation packages, altering the structure of its compensation packages through the use of additional forms of compensation, or other steps. The inability of our Adviser to attract and retain experienced personnel would have a material adverse effect on our business.
We may not replicate the historical results achieved by Main Street or by other entities managed by our Adviser. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We may not replicate the historical results achieved by Main Street or by other entities managed by our Adviser. Although our primary focus in making investments is similar to that of Main Street, the parent company of our Adviser, we cannot assure stockholders that we will be able to replicate the historical results achieved by Main Street or other investment funds or accounts managed by our Adviser. Because of the differences in our business structure and portfolio composition, our investment returns could be substantially lower than the returns achieved by Main Street or other investment funds or accounts managed by our Adviser in prior periods. Additionally, all or a portion of the prior results may have been achieved in particular market conditions that may never be repeated. Moreover, current or future market volatility and regulatory uncertainty may have an adverse impact on our future performance.
Our business model depends to a significant extent upon strong referral relationships. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Our business model depends to a significant extent upon strong referral relationships. We expect that members of our management team will maintain their relationships with intermediaries, financial institutions, investment bankers, commercial bankers, financial advisors, attorneys, accountants, consultants and other individuals within our network, and we will rely to a significant extent upon these relationships to provide us with potential investment opportunities. If our management team fails to maintain its existing relationships or develop new relationships with sources of investment opportunities, we will not be able to grow our Investment Portfolio. In addition, individuals with whom members of our management team have relationships are not obligated to provide us with investment opportunities, and, therefore, there is no assurance that such relationships will generate investment opportunities for us.
Our Board of Directors may change our operating policies and strategies without prior notice or stockholder approval, the effects of which may be adverse. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Our Board of Directors may change our operating policies and strategies without prior notice or stockholder approval, the effects of which may be adverse. Our Board of Directors has the authority to modify or waive our current operating policies, investment criteria and strategies without prior notice and without stockholder approval. We cannot predict the effect any changes to our current operating policies, investment criteria and strategies would have on our business, NAV, operating results and value of our stock. However, the effects might be adverse, which could negatively impact our ability to pay interest and principal payments to holders of our debt instruments and dividends to our stockholders and cause our investors to lose all or part of their investment in us.
We are a non-diversified investment company within the meaning of the 1940 Act. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We are a non-diversified investment company within the meaning of the 1940 Act, and therefore we are not limited with respect to the proportion of our assets that may be invested in securities of a single issuer. We are classified as a non-diversified investment company within the meaning of the 1940 Act, which means that we are not limited by the 1940 Act with respect to the proportion of our assets that we may invest in securities of a single issuer. Under the 1940 Act, a “diversified” investment company is required to invest at least 75% of the value of its total assets in cash and cash items, government securities, securities of other investment companies and other securities limited in respect of any one issuer to an amount not greater than 5% of the value of the total assets of such company and no more than 10% of the outstanding voting securities of such issuer. As a non-diversified investment company, we are not subject to this requirement. To the extent that we assume large positions in the securities of a small number of issuers, our NAV may fluctuate to a greater extent than that of a diversified investment company as a result of changes in the financial condition or the market’s assessment of the issuer. We may also be more susceptible to any single economic or regulatory occurrence than a diversified investment company. Beyond our RIC asset diversification requirements, we do not have fixed guidelines for diversification, and our investments could be concentrated in relatively few portfolio companies. See Risk Factors — Federal Income Tax Risks — We will be subject to corporate-level U.S. federal income tax if we are unable to qualify as a RIC under Subchapter M of the Code.
We and our portfolio companies may maintain cash balances at financial institutions that exceed federally insured limits. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We and our portfolio companies may maintain cash balances at financial institutions that exceed federally insured limits and may otherwise be materially affected by adverse developments affecting the financial services industry, such as actual events or concerns involving liquidity, defaults or non-performance by financial institutions or transactional counterparties. Cash held by us and by our portfolio companies in non-interest-bearing and interest-bearing operating accounts may exceed the Federal Deposit Insurance Corporation (“FDIC”) insurance limits. If such banking institutions were to fail, we or our portfolio companies could lose all or a portion of those amounts held in excess of such insurance limitations. In addition, actual events involving limited liquidity, defaults, non-performance or other adverse developments that affect financial institutions, transactional counterparties or other companies in the financial services industry or the financial services industry generally, or concerns or rumors about any events of these kinds or other similar risks, have in the past and may in the future lead to market-wide liquidity problems, which could adversely affect our and our portfolio companies’ business, financial condition, results of operations or prospects. Although we assess our portfolio companies’ banking relationships as we believe necessary or appropriate, our and our portfolio companies’ access to funding sources and other credit arrangements in amounts adequate to finance or capitalize our respective current and projected future business operations could be significantly impaired by factors that affect us or our portfolio companies, the financial institutions with which we or our portfolio companies have arrangements directly or the financial services industry or economy in general. These factors could include, among others, events such as liquidity constraints or failures, the ability to perform obligations under various types of financial, credit or liquidity agreements or arrangements, disruptions or instability in the financial services industry or financial markets or concerns or negative expectations about the prospects for companies in the financial services industry. These factors could involve financial institutions or financial services industry companies with which we or our portfolio companies have financial or business relationships, but could also include factors involving financial markets or the financial services industry generally. In addition, investor concerns regarding the U.S. or international financial systems could result in less favorable commercial financing terms, including higher interest rates or costs and tighter financial and operating covenants or systemic limitations on access to credit and liquidity sources, thereby making it more difficult for us or our portfolio companies to acquire financing on acceptable terms or at all.
We are subject to risks related to corporate social responsibility. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We are subject to risks related to corporate social responsibility. Our business faces increasing public scrutiny related to environmental, social and governance (“ESG”) activities. We risk damage to our brand and reputation if we or our Adviser fail to act responsibly in a number of areas, such as diversity and inclusion, environmental stewardship, support for local communities, corporate governance and transparency and considering ESG factors in our investment processes. Adverse incidents with respect to ESG activities could impact the value of our brand, the cost of our operations and relationships with investors, all of which could adversely affect our business and results of operations. Additionally, new regulatory initiatives related to ESG could adversely affect our business.
The types of portfolio companies in which we invest involve significant risks and we could lose all or part of our investment. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		The types of portfolio companies in which we invest involve significant risks and we could lose all or part of our investment. Investing in the types of companies that comprise our portfolio companies exposes us to a number of significant risks. Among other things, these companies: • may have limited financial resources and may be unable to meet their obligations under their debt instruments that we hold, which may be accompanied by a deterioration in the value of any collateral and a reduction in the likelihood of us realizing any guarantees from subsidiaries or affiliates of our portfolio companies that we may have obtained in connection with our investment, as well as a corresponding decrease in the value of the equity components of our investments; • may have shorter operating histories, narrower product lines, smaller market shares and/or significant customer concentrations than larger businesses, which tend to render them more vulnerable to competitors’ actions and market conditions, as well as general economic downturns; • are more likely to depend on the management talents and efforts of a small group of persons; therefore, the death, disability, resignation, termination or significant under-performance of one or more of these persons could have a material adverse impact on our portfolio company and, in turn, on us; • generally have less predictable operating results, may from time to time be parties to litigation, may be engaged in rapidly changing businesses with products subject to a substantial risk of obsolescence, and may require substantial additional capital to support their operations, finance expansion or maintain their competitive position; and • generally have less publicly available information about their businesses, operations and financial condition. We are required to rely on the ability of our Adviser’s management team and investment professionals to obtain adequate information to evaluate the potential returns from investing in these companies. If we are unable to uncover all material information about these companies, we may not make a fully informed investment decision, and may lose all or part of our investment. In addition certain of our officers and directors or officers and directors of our Adviser may serve as directors on the boards of our portfolio companies. To the extent that litigation arises out of our investments in these companies, our officers and directors or officers and directors of our Adviser may be named as defendants in such litigation, which could result in an expenditure of funds (through our indemnification of such officers and directors) and the diversion of management time and resources.
Economic recessions or downturns could impair our portfolio companies’ performance and defaults by our portfolio companies will harm our operating results. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Economic recessions or downturns could impair our portfolio companies’ performance and defaults by our portfolio companies will harm our operating results. Many of our portfolio companies are susceptible to economic slowdowns or recessions and could be unable to repay our loans during these periods. Therefore, the number of non-performing assets are likely to increase and the value of our portfolio is likely to decrease during these periods. Adverse economic conditions could decrease the value of collateral securing any of our loans and the value of any equity investments. A severe recession could further decrease the value of such collateral and result in losses of value in our portfolio and a decrease in our revenues, net income, assets and net worth. Economic slowdowns or recessions could lead to financial losses in our portfolio and a decrease in revenues, net income and assets. Unfavorable economic conditions also could increase our funding costs, limit our access to the capital markets or result in a decision by lenders not to extend credit to us. These events could prevent us from increasing our investments and harm our operating results. Any deterioration of general economic conditions could lead to significant declines in corporate earnings or loan performance, and the ability of corporate borrowers to service their debt, any of which could trigger a period of global economic slowdown, and have an adverse impact on our performance and financial results, and the value and the liquidity of our investments. In an economic downturn, we could have non-performing assets or an increase in non-performing assets, and we would anticipate that the value of our portfolio would decrease during these periods. Failure to satisfy financial or operating covenants imposed by lenders, including us, to a portfolio company could lead to defaults and, potentially, acceleration of payments on such loans and foreclosure on the assets representing collateral for the portfolio company’s obligations. Cross default provisions under other agreements could be triggered and thus limit the portfolio company’s ability to satisfy its obligations under any debt that we hold and affect the value of any equity securities we own. We would expect to incur expenses to the extent necessary to seek recovery upon default or to negotiate new terms with a portfolio company following or in anticipation of a default.
Rising credit spreads could affect the value of our investments, and rising interest rates make it more difficult for portfolio companies to make periodic payments on their loans. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Rising credit spreads could affect the value of our investments, and rising interest rates make it more difficult for portfolio companies to make periodic payments on their loans. Some of our portfolio investments are debt securities that bear interest at variable rates and may be negatively affected by changes in market interest rates. Rising interest rates make it more difficult for borrowers to repay debt, which could increase the risk of payment defaults and cause the portfolio companies to defer or cancel needed investment. Any failure of one or more portfolio companies to repay or refinance its debt at or prior to maturity or the inability of one or more portfolio companies to make ongoing payments following an increase in contractual interest rates could have a material adverse effect on our business, financial condition, results of operations and cash flows. The value of our securities could also be reduced from an increase in market credit spreads as rates available to investors could make an investment in our securities less attractive than alternative investments.
Inflation could adversely affect the business, results of operations and financial condition of our portfolio companies. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Inflation could adversely affect the business, results of operations and financial condition of our portfolio companies. Certain of our portfolio companies are in industries that could be impacted by inflation. If such portfolio companies are unable to pass any increases in their costs of operations along to their customers, it could adversely affect their operating results and impact their ability to pay dividends on our equity investments and/or interest and principal on our loans, particularly if interest rates rise in response to inflation. In addition, any projected future decreases in our portfolio companies’ operating results due to inflation could adversely impact the fair value of those investments. Any decreases in the fair value of our investments could result in future realized or unrealized losses and therefore reduce our net increase (decrease) in net assets resulting from operations.
We may be exposed to higher risks with respect to our investments that include original issue discount or PIK interest. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We may be exposed to higher risks with respect to our investments that include original issue discount or PIK interest. Our investments may include original issue discount and contractual PIK interest, which represents contractual interest added to a loan balance and due at the end of such loan’s term. To the extent original issue discount or PIK interest constitute a portion of our income, we are exposed to typical risks associated with such income being required to be included in taxable and accounting income prior to receipt of cash, including the following: • original issue discount and PIK instruments may have higher yields, which reflect the payment deferral and credit risk associated with these instruments; • for accounting purposes, cash distributions to investors representing original issue discount income are not derived from paid in capital, although they may be effectively paid from any offering proceeds during any given period; thus, although the source for the cash used to pay a distribution of original issue discount income may come from the cash invested by investors, the 1940 Act does not require that investors be given notice of this fact; • original issue discount and PIK instruments may have unreliable valuations because their continuing accruals require continuing judgments about the collectability of the deferred payments and the value of the collateral; and • original issue discount and PIK instruments may represent a higher credit risk than coupon loans; even if the conditions for income accrual under U.S. GAAP are satisfied, a borrower could still default when actual payment is due upon the maturity of such loan.
The lack of liquidity in our investments may adversely affect our business. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		The lack of liquidity in our investments may adversely affect our business. We generally invest in companies whose securities are not publicly traded and whose securities will be subject to legal and other restrictions on resale or will otherwise be less liquid than publicly traded securities. The illiquidity of these investments may make it difficult for us to sell these investments when desired. In addition, if we are required to liquidate all or a portion of our portfolio quickly, we may realize significantly less than the value at which we had previously recorded these investments. As a result, we do not expect to achieve liquidity in our investments in the near-term. Our investments are usually subject to contractual or legal restrictions on resale or are otherwise illiquid because there is usually no established trading market for such investments. The illiquidity of most of our investments may make it difficult for us to dispose of them at a favorable price and, as a result, we may suffer losses.
We may not have the funds or ability to make additional investments in our portfolio companies. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We may not have the funds or ability to make additional investments in our portfolio companies. We may not have the funds or ability to make additional investments in our portfolio companies. After our initial investment in a portfolio company, we may be called upon from time to time to provide additional funds to such company or have the opportunity to increase our investment through the extension of additional loans, the exercise of a warrant to purchase equity securities, or the funding of additional equity investments. There is no assurance that we will make, or will have sufficient funds to make, follow-on investments. Any decisions not to make a follow-on investment or any inability on our part to make such an investment may have a negative impact on a portfolio company in need of such an investment, may result in a missed opportunity for us to increase our participation in a successful operation, may reduce our ability to protect an existing investment or may reduce the expected yield on the investment.
There may be circumstances where our debt investments could be subordinated to claims of other creditors or we could be subject to lender liability claims. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		There may be circumstances where our debt investments could be subordinated to claims of other creditors or we could be subject to lender liability claims. Our portfolio companies may have, or may be permitted to incur, other debt that ranks equally with, or senior to, the debt in which we invest. By their terms, such debt instruments may entitle the holders to receive payment of interest or principal on or before the dates on which we are entitled to receive payments with respect to the debt instruments in which we invest. Also, in the event of insolvency, liquidation, dissolution, reorganization or bankruptcy of a portfolio company, holders of debt instruments ranking senior to our investment in that portfolio company would typically be entitled to receive payment in full before we receive any distribution. After repaying such senior creditors, such portfolio company may not have any remaining assets to use for repaying its obligation to us. In the case of debt ranking equally with debt instruments in which we invest, we would have to share on an equal basis any distributions with other creditors holding such debt in the event of an insolvency, liquidation, dissolution, reorganization or bankruptcy of the relevant portfolio company. Even if our investment is structured as a senior-secured loan, principles of equitable subordination, as defined by existing case law, could lead a bankruptcy court to subordinate all or a portion of our claim to that of other creditors and transfer any lien securing such subordinated claim to the bankruptcy estate. The principles of equitable subordination defined by case law have generally indicated that a claim may be subordinated only if its holder is guilty of misconduct or where the senior loan is re-characterized as an equity investment and the senior lender has actually provided significant managerial assistance to the bankrupt debtor. We may also be subject to lender liability claims for actions taken by us with respect to a borrower’s business or instances where we exercise control over the borrower. It is possible that we could become subject to a lender liability claim, including as a result of actions taken in rendering significant managerial assistance or actions to compel and collect payments from the borrower outside the ordinary course of business.
We generally will not control our portfolio companies. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We generally will not control our portfolio companies. We do not, and do not expect to, control the decision making in many of our portfolio companies, even though we may have board representation or board observation rights, and our debt agreements may contain certain restrictive covenants. As a result, we are subject to the risk that a portfolio company in which we invest will make business decisions with which we disagree and the management of such company will take risks or otherwise act in ways that do not serve our interests as debt investors or minority equity holders. Due to the lack of liquidity for our investments in non-traded companies, we may not be able to dispose of our interests in our portfolio companies as readily as we would like or at an appropriate valuation. As a result, a portfolio company may make decisions that would decrease the value of our portfolio holdings.
Defaults by our portfolio companies will harm our operating results. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Defaults by our portfolio companies will harm our operating results. A portfolio company’s failure to satisfy financial or operating covenants imposed by us or other lenders could lead to non-payment of interest and other defaults and, potentially, termination of its loans and foreclosure on its secured assets, which could trigger cross-defaults under other agreements and jeopardize a portfolio company’s ability to meet its obligations under the debt or equity securities that we hold. We may incur expenses to the extent necessary to seek recovery upon default or to negotiate new terms, which may include the waiver of certain financial covenants, with a defaulting portfolio company.
Any unrealized depreciation that we experience in our portfolio may be an indication of future realized losses, which could reduce our income and gains available for distribution. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Any unrealized depreciation that we experience in our portfolio may be an indication of future realized losses, which could reduce our income and gains available for distribution. As a BDC, we are required to carry our investments at market value or, if no market value is ascertainable, at the fair value as determined in accordance with our Valuation Procedures adopted pursuant to Rule 2a-5 under the 1940 Act. Decreases in the market values or fair values of our investments will be recorded as unrealized depreciation. Any unrealized depreciation in our portfolio could be an indication of a portfolio company’s inability to meet its repayment obligations to us with respect to affected loans or a potential impairment of the value of affected equity investments. This could result in realized losses in the future and ultimately in reductions of our income and gains available for distribution in future periods.
Prepayments of our debt investments by our portfolio companies could adversely impact our results of operations and reduce our return on equity. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Prepayments of our debt investments by our portfolio companies could adversely impact our results of operations and reduce our return on equity. We are subject to the risk that the investments we make in our portfolio companies may be repaid prior to maturity. When this occurs, we will generally reinvest these proceeds in temporary investments, pending their future investment in new portfolio companies. These temporary investments will typically have substantially lower yields than the debt being prepaid and we could experience significant delays in reinvesting these amounts. Any future investment in a new portfolio company may also be at lower yields than the debt that was repaid. As a result, our results of operations could be materially adversely affected if one or more of our portfolio companies elect to prepay amounts owed to us. Additionally, prepayments could negatively impact our return on equity, which could result in a decline in the market price of our securities.
The discontinuation and replacement of LIBOR may adversely affect the value of floating-rate debt securities in our portfolio or issued by us. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		The discontinuation and replacement of LIBOR may adversely affect the value of floating-rate debt securities in our portfolio or issued by us. As of June 30, 2023, no settings of LIBOR continue to be published on a representative basis and publication of many non-U.S. dollar LIBOR settings have been entirely discontinued. On July 29, 2021, the U.S. Federal Reserve, in conjunction with the Alternative Reference Rates Committee, a steering committee comprised of large U.S. financial institutions, recommended replacing U.S. dollar LIBOR with alternative reference rates based on the Secured Overnight Financing Rate (“SOFR”). SOFR significantly differs from LIBOR, both in the actual rate and how it is calculated. Further, on March 15, 2022, the Consolidated Appropriations Act of 2022, which includes the Adjustable Interest Rate (LIBOR) Act (“LIBOR Act”), was signed into law in the United States. This legislation established a uniform benchmark replacement process for certain financial contracts that mature after June 30, 2023 that do not contain clearly defined or practicable LIBOR fallback provisions. The legislation also created a safe harbor that shields lenders from litigation if they choose to utilize a replacement rate recommended by the Board of Governors of the U.S. Federal Reserve. In addition, the U.K. Financial Conduct Authority, which regulates the publisher of LIBOR (ICR Benchmark Administration) has announced that it required the continued publication of one, three and six month tenors of U.S. dollar LIBOR on a non-representative synthetic basis until the end of September 2024, which may result in certain non-U.S. law-governed contracts and U.S. law-governed contracts not being covered by the federal legislation remaining on synthetic U.S. dollar LIBOR until the end of this period. The transition from LIBOR as a result of certain statutory regimes (e.g., N.Y. Gen. Oblig. Law § 18-401 or the Adjustable Interest Rate (LIBOR) Act) or the use of synthetic LIBOR in floating-rate debt securities in our portfolio or issued by us and could have a material and adverse impact on the value or liquidity of those instruments. Given the inherent difference between LIBOR and SOFR, or any other alternative benchmark rate established, there are many uncertainties regarding a transition from LIBOR, including, but not limited to, the need to amend contracts which continue to reference LIBOR and how the transition from LIBOR will impact the cost of variable rate debt and certain derivative financial instruments. In addition, SOFR or other replacement rates may fail to gain market acceptance. Any failure of SOFR or alternative reference rates to gain market acceptance could adversely affect the return on or value of the market for securities linked to such rates. The elimination of LIBOR, the replacement of LIBOR with any alternative reference rate, such as SOFR (or an alternative reference rate based on SOFR) or any other changes or reforms to floating rate benchmarks could have an adverse impact on the market value of and/or transfer ability of any floating-rate debt securities in our portfolio or issued by us.
We may be subject to risks associated with “covenant-lite” loans. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We may be subject to risks associated with “covenant-lite” loans. Some of the loans in which we invest may be “covenant-lite” loans, which means the loans contain fewer maintenance covenants than other loans (in some cases, none) and do not include terms which allow the lender to monitor the performance of the borrower and declare a default if certain criteria are breached. Generally, “covenant-lite” loans provide borrower companies more freedom to negatively impact lenders because their covenants are incurrence-based, which means they are only tested and can only be breached following an affirmative action of the borrower, rather than by a deterioration in the borrower’s financial condition. To the extent we invest in covenant-lite loans, we may have fewer rights against a borrower and may have a greater risk of loss on such investments as compared to investments in loans with finance maintenance covenants.
We may not realize gains from our equity investments. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We may not realize gains from our equity investments. Certain investments that we have made in the past and may make in the future include warrants or other equity securities. Investments in equity securities involve a number of significant risks, including the risk of further dilution as a result of additional issuances, inability to access additional capital and failure to pay current distributions. Investments in preferred securities involve special risks, such as the risk of deferred distributions, credit risk, illiquidity and limited voting rights. In addition, we may from time to time make non-control, equity investments in portfolio companies. Our goal is ultimately to realize gains upon our disposition of such equity interests. However, the equity interests we receive may not appreciate in value and, in fact, may decline in value. Accordingly, we may not be able to realize gains from our equity interests, and any gains that we do realize on the disposition of any equity interests may not be sufficient to offset any other losses we experience. We also may be unable to realize any value if a portfolio company does not have a liquidity event, such as a sale of the business, recapitalization or public offering, which would allow us to sell the underlying equity interests. We often seek puts or similar rights to give us the right to sell our equity securities back to the portfolio company issuer; however, we may be unable to exercise these put rights for the consideration provided in our investment documents if the issuer is in financial distress.
Our investments in foreign securities may involve significant risks in addition to the risks inherent in U.S. investments. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Our investments in foreign securities may involve significant risks in addition to the risks inherent in U.S. investments. Our investment strategy contemplates potential investments in debt securities of foreign companies. Investing in foreign companies may expose us to additional risks not typically associated with investing in securities of U.S. companies. These risks include changes in exchange control regulations, political and social instability, expropriation, imposition of foreign taxes, less liquid markets and less available information than is generally the case in the U.S., higher transaction costs, less government supervision of exchanges, brokers and issuers, less developed bankruptcy laws, difficulty in enforcing contractual obligations, lack of uniform accounting and auditing standards and greater price volatility. Although most of our investments will be U.S. dollar denominated, any investments denominated in a foreign currency will be subject to the risk that the value of a particular currency will change in relation to one or more other currencies. Among the factors that may affect currency values are trade balances, the level of short-term interest rates, differences in relative values of similar assets in different currencies, long-term opportunities for investment and capital appreciation, and political developments.
Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us. Borrowings, also known as leverage, magnify the potential for loss on investments in our indebtedness and gain or loss on investments in our equity capital. As we use leverage to partially finance our investments, you will experience increased risks of investing in our securities. Accordingly, any event that adversely affects the value of an investment would be magnified to the extent we use leverage. Such events could result in a substantial loss to us, which would be greater than if leverage had not been used. In addition, our investment objectives are dependent on the continued availability of leverage at attractive relative interest rates. We may also borrow from banks and other lenders and may issue debt securities or enter into other types of borrowing arrangements in the future. Lenders of these senior securities will have fixed dollar claims on our assets that are superior to the claims of our common stockholders, and we would expect such lenders to seek recovery against our assets in the event of a default. We have the ability to pledge up to 100% of our assets and can grant a security interest in all of our assets under the terms of any debt instruments we could enter into with lenders. The terms of our existing indebtedness require us to comply with certain financial and operational covenants, and we expect similar covenants in future debt instruments. Failure to comply with such covenants could result in a default under the applicable credit facility or debt instrument if we are unable to obtain a waiver from the applicable lender or holder, and such lender or holder could accelerate repayment under such indebtedness and negatively affect our business, financial condition, results of operations and cash flows. In addition, under the terms of any credit facility or other debt instrument we enter into, in the event of a default, we are likely to be required by its terms to use the net proceeds of any investments that we sell to repay a portion of the amount borrowed under such facility or instrument before applying such net proceeds to any other uses. See Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources — Capital Resources for a discussion regarding our outstanding indebtedness. If the value of our assets decreases, leveraging would cause NAV to decline more sharply than it otherwise would have had we not leveraged our business. Similarly, any decrease in our income would cause net investment income to decline more sharply than it would have had we not leveraged our business. Such a decline could negatively affect our ability to pay common stock dividends, scheduled debt payments or other payments related to our securities. Illustration: The following table illustrates the effect of leverage on returns from an investment in our common stock assuming various annual returns, net of expenses. The calculations in the table below are hypothetical and actual returns may be higher or lower than those appearing below. Assumed Return on Our Portfolio (1) (net of expenses) (10.0)% (5.0)% 0.0% 5.0% 10.0% Corresponding Net Return to Common Stock Holder (2) (23.8)% (14.7)% (5.5)% 3.6% 12.8% _____________________________ (1) Assumes, as of December 31, 2023, $1,139.9 million in total assets, $485.7 million in debt outstanding, $622.3 million in net assets and a weighted-average interest rate of 7.1%. Actual interest payments may be different. (2) In order for us to cover our annual interest payments on indebtedness, we must achieve annual returns on our December 31, 2023 total assets of at least 3.0%. Our ability to achieve our investment objective may depend in part on our ability to access additional leverage on favorable terms and there can be no assurance that such additional leverage can in fact be achieved. If we are unable to obtain leverage or if the interest rates of such leverage are not attractive, we could experience diminished returns. The number of leverage providers and the total amount of financing available could decrease or remain static.
All of our assets are subject to security interests under our senior securities, we may suffer adverse consequences, including foreclosure on our assets. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		All of our assets are subject to security interests under our senior securities and if we default on our obligations under our senior securities, we may suffer adverse consequences, including foreclosure on our assets. Substantially all of our assets are currently pledged as collateral under our senior securities, including any credit facilities or notes. If we default on our obligations under our senior securities, our lenders may have the right to foreclose upon and sell, or otherwise transfer, the collateral subject to their security interests or their superior claim. In such event, we may be forced to sell our investments to raise funds to repay our outstanding borrowings in order to avoid foreclosure and these forced sales may be at times and at prices we would not consider advantageous. Moreover, such deleveraging of our company could significantly impair our ability to effectively operate our business in the manner in which we have historically operated. As a result, we could be forced to curtail or cease new investment activities and lower or eliminate the dividends that we have historically paid to our stockholders. In addition, if the lenders exercise their right to sell the assets pledged under our senior securities, such sales may be completed at distressed sale prices, thereby diminishing or potentially eliminating the amount of cash available to us after repayment of the amounts outstanding under the senior securities. If our operating performance declines and we are not able to generate sufficient cash flow to service our debt obligations, we may in the future need to refinance or restructure our debt, sell assets, reduce or delay capital investments, seek to raise additional capital or seek to obtain waivers from the required lenders under our senior securities to avoid being in default. If we are unable to implement one or more of these alternatives, we may not be able to meet our payment obligations under our senior securities. If we breach our covenants under our senior securities and seek a waiver, we may not be able to obtain a waiver from the required lenders or debt holders. If this occurs, we would be in default under our senior securities, the lenders or debt holders could exercise their rights as described above, and we could be forced into bankruptcy or liquidation. If we are unable to repay debt, lenders having secured obligations could proceed against the collateral securing the debt. Because certain of our senior securities have customary cross-default provisions, if the indebtedness under our senior securities is accelerated, we may be unable to repay or finance the amounts due.
We are subject to risks associated with any revolving credit facility that utilizes a Structured Subsidiary. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We are subject to risks associated with any revolving credit facility that utilizes a Structured Subsidiary as our interests in any Structured Subsidiary are subordinated and we could be prevented from receiving cash on our equity interests from a Structured Subsidiary. We own directly or indirectly 100% of the equity interests in MSIF Funding, LLC (“MSIF Funding”), a special purpose Structured Subsidiary utilized in our senior secured special purpose vehicle revolving credit facility (the “SPV Facility”). We consolidate the financial statements of the MSIF Funding in our consolidated financial statements and treat the indebtedness under the SPV Facility as our leverage. Our interest in MSIF Funding is subordinated in priority of payment to every other obligation of MSIF Funding and is subject to certain payment restrictions set forth in the SPV Facility. We receive cash from MSIF Funding only to the extent that we receive distributions on our equity interests therein. MSIF Funding could make distributions on its equity interests only to the extent permitted by the payment priority provisions of the SPV Facility. The SPV Facility generally provides that payments on the respective interests could not be made on any payment date unless all amounts owing to the lenders and other secured parties are paid in full. In addition, if MSIF Funding does not meet the leverage and borrowing base requirements set forth in the agreement governing the SPV Facility, a default could occur. In the event of a default under the SPV Facility credit agreement, cash would be diverted from us to pay the applicable lenders and other secured parties in amounts sufficient to cause such tests to be satisfied. In the event that we fail to receive cash from MSIF Funding, we could be unable to make distributions to our stockholders in amounts sufficient to maintain our status as a RIC, or at all. We also could be forced to sell investments in portfolio companies at less than their fair value in order to continue making such distributions. We cannot assure you that distributions on the assets held by MSIF Funding will be sufficient to make any distributions to us or that such distributions will meet our expectations. Our equity interest in MSIF Funding ranks behind all of the secured and unsecured creditors, known or unknown, including the lenders in the SPV Facility. Consequently, to the extent that the value of MSIF Funding’s portfolio of loan investments has been reduced as a result of conditions in the credit markets, defaulted loans, capital gains and losses on the underlying assets, prepayment or changes in interest rates, the returns on our investments in MSIF Funding could be reduced. Accordingly, our investments in MSIF Funding could be subject to up to 100% loss.
The ability to sell investments held by a Structured Subsidiary is limited. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		The ability to sell investments held by a Structured Subsidiary is limited. The credit agreement governing the SPV Facility places significant restrictions on our ability, as servicer, to sell investments. As a result, there could be times or circumstances during which we are unable to sell investments or take other actions that might be in our best interests.
We may invest in derivatives or other assets that expose us to certain risks, including market risk, liquidity risk and other risks similar to those associated with the use of leverage. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We may invest in derivatives or other assets that expose us to certain risks, including market risk, liquidity risk and other risks similar to those associated with the use of leverage. We may invest in derivatives and other assets that are subject to many of the same types of risks related to the use of leverage. Derivative transactions, if any, will generally create leverage for us and involve significant risks. The primary risks related to derivative transactions include counterparty, correlation, liquidity, leverage, volatility, over-the-counter trading, operational and legal risks. In addition, a small investment in derivatives could have a large potential impact on our performance, effecting a form of investment leverage on our portfolio. In certain types of derivative transactions, we could lose the entire amount of our investment; in other types of derivative transactions the potential loss is theoretically unlimited. Under SEC Rule 18f-4 under the 1940 Act (“Rule 18f-4”), related to use of derivatives, short sales, reverse repurchase agreements and certain other transactions by registered investment companies, we are permitted to enter into derivatives and other transactions that create future payment or delivery obligations, including short sales, notwithstanding the senior security provision of the 1940 Act if we comply with certain value-at-risk leverage limits, a derivatives risk management program and board oversight and reporting requirements or comply with a “limited derivatives users” exception. Rule 18f-4 also permits us to enter into reverse repurchase agreements or similar financing transactions notwithstanding the senior security provision of the 1940 Act if we aggregate the amount of indebtedness associated with our reverse repurchase agreements or similar financing transactions with the aggregate amount of any other senior securities representing indebtedness when calculating the asset coverage ratios as discussed herein. In addition, we are permitted to invest in a security on a when-issued or forward-settling basis, or with a non-standard settlement cycle, and the transaction will be deemed not to involve a senior security under the 1940 Act, provided that (i) we intend to physically settle the transaction and (ii) the transaction will settle within 35 days of its trade date (the “Delayed-Settlement Securities Provision”). We may otherwise engage in such transaction as a “derivatives transaction” for purposes of compliance with the rule. Furthermore, we are permitted to enter into an unfunded commitment agreement, and such unfunded commitment agreement will not be subject to the asset coverage requirements under the 1940 Act if we reasonably believe, at the time we enter into such agreement, that we will have sufficient cash and cash equivalents to meet our obligations with respect to all such agreements as they come due. We cannot predict the effects of these requirements. We have adopted updated policies and procedures in compliance with Rule 18f-4. We expect to qualify as a “limited derivatives user.” Future legislation or rules may modify how we treat derivatives and other financial arrangements for purposes of our compliance with the leverage limitations of the 1940 Act. Future legislation or rules may modify how leverage is calculated under the 1940 Act and, therefore, may increase or decrease the amount of leverage currently available to us under the 1940 Act, which may be materially adverse to us and our investors.
Our Adviser has conflicts of interest that may create an incentive for the Adviser. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Our Adviser has conflicts of interest that may create an incentive for the Adviser to enter into investments that are riskier or more speculative than would otherwise be the case and our Adviser may have an incentive to increase portfolio leverage in order to earn higher management fees. Our Adviser and its affiliates, including our officers, may have conflicts of interest as a result of compensation arrangements, time constraints and competition for investments, which they will attempt to resolve in a fair and equitable manner, but which may result in actions that are not in the best interests of our stockholders. Our Adviser receives substantial fees from us in return for its services and these fees could influence the investment and other decisions they make on our behalf. Among other matters, the compensation arrangements could affect its judgment with respect to public offerings of equity by us, which may allow our Adviser to earn increased management fees. The incentive fee payable by us to our Adviser may create an incentive for it to make investments on our behalf that are risky or more speculative than would be the case in the absence of such compensation arrangement. The way in which the incentive fee payable to our Adviser is determined may encourage it to use leverage to increase the return on our investments. In addition, the fact that our management fee is payable based upon our gross assets, which includes any borrowings for investment purposes, may encourage our Adviser to use leverage to make additional investments. Under certain circumstances, the use of leverage (or an investment in companies that are highly leveraged) may increase the likelihood of default, which would result in higher investment losses.
We may be obligated to pay our Adviser incentive compensation even if we incur a net loss due to a decline in the value of our portfolio. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We may be obligated to pay our Adviser incentive compensation even if we incur a net loss due to a decline in the value of our portfolio. The Investment Advisory Agreement entitles our Adviser to receive incentive compensation on income regardless of any capital losses. In such case, we may be required to pay our Adviser incentive compensation for a fiscal quarter even if there is a decline in the value of our portfolio or if we incur a net loss for that quarter. Any incentive fee payable by us that relates to our net investment income may be computed and paid on income that may include interest that has been accrued but not yet received. If a portfolio company defaults on a loan that is structured to provide accrued interest, it is possible that accrued interest previously included in the calculation of the incentive fee will become uncollectible. Pursuant to the Investment Advisory Agreement, our Adviser will not be under any obligation to reimburse us for any part of the incentive fee it received that was based on accrued income that we never received in cash as a result of a default by an entity on the obligation that resulted in the accrual of such income and such circumstances would result in our paying an incentive fee on income we never received.
Our Adviser may face conflicts of interest in allocating investment opportunities between us, Main Street and the other funds and accounts managed by our Adviser. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Our Adviser may face conflicts of interest in allocating investment opportunities between us, Main Street and the other funds and accounts managed by our Adviser. The investment professionals utilized by our Adviser are also the investment professionals responsible for investing and managing Main Street’s investment portfolio as well as the investment portfolios of other funds and accounts managed by our Adviser. These professionals are responsible for allocating investment opportunities between us, Main Street and other funds and accounts managed by it. We have made and, in the future, intend to make co-investments with Main Street and other funds or clients advised by the Adviser in accordance with the conditions of an exemptive relief order from the SEC permitting such co-investment transactions. The order requires, among other things, that Main Street and the Adviser consider whether each such investment opportunity is appropriate for us, Main Street and the Adviser’s advised clients and, if it is appropriate, to propose an allocation of the investment opportunity between such other parties. As a consequence, it may be more difficult for us to maintain or increase the size of our Investment Portfolio in the future. Although the Adviser and Main Street will endeavor to allocate investment opportunities in a fair and equitable manner, including in accordance with the conditions set forth in the order issued by the SEC when relying on such order, we may face conflicts in allocating investment opportunities between us, Main Street and other funds and accounts managed by the Adviser. Because our Adviser may receive performance-based fee compensation from the other funds and accounts it manages, this may provide our Adviser an incentive to allocate opportunities to other funds and accounts our Adviser manages, instead of us. Our Adviser and Main Street have implemented an allocation policy to ensure the equitable distribution of investment opportunities and, as a result, we may be unable to participate in certain investments based upon such allocation policy.
Our Adviser’s liability is limited under the Investment Advisory Agreements. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Our Adviser’s liability is limited under the Investment Advisory Agreement, and we have agreed to indemnify our Adviser against certain liabilities, which may lead our Adviser to act in a riskier manner on our behalf than it would when acting for its own account. Under the Investment Advisory Agreement, our Adviser and officers, directors, employees, agents and certain other affiliates are not liable to us for acts or omissions performed by our Adviser in accordance with and pursuant to the Investment Advisory Agreement, except those resulting from acts constituting negligence, willful misfeasance, bad faith or misconduct. In addition, we have agreed to indemnify our Adviser and officers, directors, employees, agents and certain other affiliates from and against any claims or liabilities, including reasonable legal fees, arising out of or in connection with any action taken or omitted on our behalf pursuant to authority granted by the Investment Advisory Agreement, except where attributable to gross negligence, willful misfeasance, bad faith or misconduct. These protections may lead our Adviser to act in a riskier manner when acting on our behalf than they would when acting for their own account.
Our Adviser can resign on 120 days’ notice. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Our Adviser can resign on 120 days’ notice and we may not be able to find a suitable replacement within that time, resulting in a disruption in our operations that could adversely affect our financial condition, business and results of operations. Our Adviser has the right, under the Investment Advisory Agreement, to resign at any time upon not less than 120 days’ written notice, whether we have found a replacement or not. If our Adviser resigns, we may not be able to find a replacement or hire internal management with similar expertise and ability to provide the same or equivalent services on acceptable terms within 120 days or at all. If we are unable to do so quickly, our operations are likely to experience a disruption, our financial condition, business and results of operations as well as our ability to pay distributions are likely to be adversely affected and the value of our shares may decline. Even if we are able to retain comparable management, whether internal or external, the integration of such management and their lack of familiarity with our investment objective may result in additional costs and time delays that may adversely affect our business, financial condition, results of operations and cash flows.
Failure to maintain our status as a BDC would reduce our operating flexibility. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Failure to maintain our status as a BDC would reduce our operating flexibility. If we do not remain a BDC, we might be regulated as a closed-end investment company under the 1940 Act, which would subject us to substantially more regulatory restrictions under the 1940 Act and correspondingly decrease our operating flexibility.
Operating under the constraints imposed on us as a BDC and RIC may hinder the achievement of our investment objectives. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Operating under the constraints imposed on us as a BDC and RIC may hinder the achievement of our investment objectives. The 1940 Act and the Code impose numerous constraints on the operations of BDCs and RICs that do not apply to certain of the other investment vehicles that we may compete with. BDCs are required, for example, to invest at least 70% of their total assets in certain qualifying assets, including U.S. private or thinly traded public companies, cash, cash equivalents, U.S. government securities and other high-quality debt instruments that mature in one year or less from the date of investment. Moreover, qualification for taxation as a RIC requires satisfaction of source-of-income, asset diversification and distribution requirements. Operating under these constraints may hinder our ability to take advantage of attractive investment opportunities and to achieve our investment objective. Any failure to do so could subject us to enforcement action by the SEC, cause us to fail to satisfy the requirements associated with RIC status and subject us to entity-level corporate income taxation, cause us to fail the 70% test described above or otherwise have a material adverse effect on our business, financial condition or results of operations.
Regulations governing our operation as a BDC will affect our ability to, and the way in which we, raise additional capital. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Regulations governing our operation as a BDC will affect our ability to, and the way in which we, raise additional capital. Our business will require capital to operate and grow. We may acquire such additional capital from the following sources: Senior Securities We may issue debt securities or preferred stock and/or borrow money from banks or other financial institutions, which we refer to collectively as senior securities. As a result of issuing senior securities, we will be exposed to additional risks, including the following: • Under the provisions of the 1940 Act, we are permitted, as a BDC, to issue senior securities only in amounts such that our asset coverage, as defined in the 1940 Act, equals at least 200% (or 150% if certain requirements are met) immediately after each issuance of senior securities. If the value of our assets declines, we may be unable to satisfy this test. If that happens, we will be prohibited from issuing debt securities or preferred stock and/or borrowing money from banks or other financial institutions and may not be permitted to declare a dividend or make any distribution to stockholders or repurchase shares until such time as we satisfy this test. • Any amounts that we use to service our debt or make payments on preferred stock will not be available for dividends to our common stockholders. • It is likely that any senior securities or other indebtedness we issue will be governed by an indenture or other instrument containing covenants restricting our operating flexibility. Additionally, some of these securities or other indebtedness may be rated by rating agencies, and in obtaining a rating for such securities and other indebtedness, we may be required to abide by operating and investment guidelines that further restrict operating and financial flexibility. • We and, indirectly, our stockholders will bear the cost of issuing and servicing such securities and other indebtedness. • Preferred stock or any convertible or exchangeable securities that we issue in the future may have rights, preferences and privileges more favorable than those of our common stock, including separate voting rights and could delay or prevent a transaction or a change in control to the detriment of the holders of our common stock. • Any unsecured debt issued by us would generally rank (i) pari passu with our current and future unsecured indebtedness and effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, and (ii) structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries. Additional Common Stock We are not generally able to issue and sell our common stock at a price below NAV per share. We may, however, sell our common stock, warrants, options or rights to acquire our common stock, at a price below the current NAV of the common stock if our Board of Directors determines that such sale is in the best interests of our stockholders, and our stockholders approve such sale. Moreover, we can offer no assurance that we will be able to issue and sell additional equity securities in the future, on favorable terms or at all.
Previously enacted legislation may allow us to incur additional leverage. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Previously enacted legislation may allow us to incur additional leverage . The 1940 Act generally prohibits us from incurring indebtedness unless immediately after such borrowing we have an asset coverage for total borrowings of at least 200% (i.e., the amount of debt may not exceed 50% of the value of our assets). However, legislation passed in March 2018 modified the 1940 Act by allowing a BDC to increase the maximum amount of leverage it may incur by lowering the required asset coverage ratio of 200% to an asset coverage ratio of 150% (i.e., the amount of debt may not exceed 66 2 / 3 % of the value of our assets), if certain requirements are met. Under the legislation, we are allowed to increase our leverage capacity if stockholders representing at least a majority of the votes cast, when a quorum is met, approve a proposal to do so. If we receive stockholder approval, we would be allowed to increase our leverage capacity on the first day after such approval. Alternatively, the legislation allows a “required majority” (as defined in Section 57(o) of the 1940 Act) of the members of our Board of Directors to approve an increase in our leverage capacity, and such approval would become effective after one year from the date of approval. In either case, because our common stock is not listed on a national securities exchange, we would be required to offer to repurchase 100% of the shares of our stockholders as of the date of the requisite approval over the following year (25% in each of the following four quarters). In addition, we would be required to make certain disclosures on our website and in SEC filings regarding, among other things, the receipt of approval to increase our leverage, our leverage capacity and usage, and risks related to leverage. As a result of this legislation, we may be able to increase our leverage up to an amount that reduces our asset coverage ratio from 200% to 150%. See Risk Factors — Risks Related to Leverage — Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us for a discussion of the risks associated with leverage.
Investing in our securities may involve a high degree of risk. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Investing in our securities may involve a high degree of risk. The investments we make in accordance with our investment objective may result in a higher amount of risk than alternative investment options and a higher risk of volatility or loss of principal. Our investments in portfolio companies involve higher levels of risk, and therefore, an investment in our securities may not be suitable for someone with lower risk tolerance.
Our shares of common stock are not listed on an exchange or quoted through a quotation system. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Our shares of common stock are not listed on an exchange or quoted through a quotation system and may not be listed in the foreseeable future, if ever. Therefore, our stockholders will have limited liquidity and may not receive a full return of their invested capital if they sell their shares of common stock. Our shares of common stock are illiquid assets for which there is not a secondary market, nor is it expected that any secondary market will develop in the future. We intend to explore potential liquidity event for our stockholders from time to time. However, there can be no assurance that we will complete a liquidity event. If our shares of common stock are listed, stockholders cannot be assured a public trading market will develop. Since a portion of the offering price from any sale of common stock will be used to pay expenses and fees, the full offering price paid by stockholders will not be invested in portfolio companies. As a result, even if we do complete a liquidity event, stockholders may not receive a return of all of their invested capital. Stockholders should also be aware that shares of publicly traded closed-end investment companies, including BDCs, may trade at a discount to their NAV. If our shares of common stock are eventually listed on a national securities exchange, we would not be able to predict whether our common stock would trade above, at or below NAV per share. This risk is separate and distinct from the risk that our NAV per share may decline.
Our share repurchase program allows us to repurchase our stockholders’ shares on a quarterly basis. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Our share repurchase program allows us to repurchase our stockholders’ shares on a quarterly basis, subject to certain restrictions and limitations. As a result, our stockholders will have limited opportunities to sell their shares and, to the extent they are able to sell their shares under the program, our stockholders may not be able to recover the amount of their investment in our shares. We have a share repurchase program that currently allows us to repurchase during any calendar quarter shares of common stock in an amount equal to the number of shares we can repurchase with 90% of the proceeds we receive from the issuance of shares of our common stock under our dividend reinvestment plan. Our Board of Directors may amend, suspend or terminate the share repurchase program at any time. Our share repurchase program allows stockholders to sell back their shares of common stock to us on a quarterly basis at a price equal to the NAV per share, as determined within 48 hours of the repurchase date. The share repurchase program includes numerous restrictions that limit stockholders’ the ability to sell shares back to us. At the discretion of our Board of Directors, we may make changes to the share repurchase program without prior stockholder approval. To the extent that the number of shares put to us for repurchase exceeds the number of shares that we offered to purchase, we will repurchase shares on a pro-rata basis, subject to limited exceptions, not on a first-come, first-served basis. Further, we will have no obligation to repurchase shares if the repurchase would violate the restrictions on distributions under federal law or Maryland law, which prohibit distributions that would cause a corporation to fail to meet statutory tests of solvency. These limits may prevent us from accommodating all repurchase requests made in any quarter. In addition, our Board of Directors may suspend or terminate the share repurchase program and therefore should not be relied upon as a method to sell shares promptly and at a desired price.
Our repurchase offers pursuant to our share repurchase program may be at prices lower than the price paid by our stockholders to purchase our common stock. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Our repurchase offers pursuant to our share repurchase program may be at prices lower than the price paid by our stockholders to purchase our common stock. When we make quarterly repurchase offers pursuant to the share repurchase program, we offer to repurchase shares of common stock at the NAV per share, as determined within 48 hours prior to the repurchase date. As a result, to the extent an investor paid an offering price that included the related sales load, then the price at which such investor may sell shares of common stock pursuant to our share repurchase program may be lower than what such investor paid in connection with the purchase of shares of common stock.
We may not be able to pay distributions to our stockholders, our distributions may not grow over time, and a portion of distributions paid to our stockholders may be a return of capital. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We may not be able to pay distributions to our stockholders, our distributions may not grow over time, and a portion of distributions paid to our stockholders may be a return of capital. We intend to pay distributions to our stockholders out of assets legally available for distribution. We cannot assure you that we will achieve investment results that will allow us to pay a specified level of cash distributions, previously projected distributions for future periods, or year-to-year increases in cash distributions. Our ability to pay distributions might be adversely affected by, among other things, the impact of one or more of the risk factors described herein. In addition, the inability to satisfy the asset coverage test applicable to us as a BDC could limit our ability to pay distributions. All distributions will be paid at the discretion of our Board of Directors and will depend on our earnings, our financial condition, maintenance of our RIC status, compliance with applicable BDC regulations, compliance with our debt covenants and such other factors as our Board of Directors may deem relevant from time to time. We cannot assure you that we will pay distributions to our stockholders in the future. When we make distributions, we will be required to determine the extent to which such distributions are paid out of current or accumulated taxable earnings, recognized capital gains or capital. To the extent there is a return of capital, investors will be required to reduce their basis in our stock for U.S. federal income tax purposes, which may result in higher tax liability when the shares are sold, even if they have not increased in value or have lost value. In addition, any return of capital will be net of any sales load and offering expenses associated with sales of shares of our common stock. In the future, our distributions may include a return of capital.
Our common stockholders’ interest in us will be diluted if we issue additional shares, which could reduce the overall value of their investment. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Our common stockholders’ interest in us will be diluted if we issue additional shares, which could reduce the overall value of their investment. Our investors do not have preemptive rights to any shares we issue in the future. Our Articles of Incorporation authorize us to issue 450,000,000 shares of common stock. Pursuant to our Articles of Incorporation, a majority of our entire Board of Directors may amend our Articles of Incorporation from time to time to increase or decrease the aggregate number of authorized shares of stock or the number of authorized shares of stock of any class or series without stockholder approval. Our Board of Directors may elect to sell additional shares in future public offerings or issue equity interests in private offerings. To the extent we issue additional equity interests, our stockholders’ percentage ownership interest in us will be diluted. In addition, depending upon the terms and pricing of any additional offerings and the value of our investments, stockholders may also experience dilution in the book value and fair value of their shares of common stock.
Our stockholders could experience dilution in their ownership percentage if they do not participate in our dividend reinvestment plan. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Our stockholders could experience dilution in their ownership percentage if they do not participate in our dividend reinvestment plan. All dividends declared to stockholders that have “opted in” to our dividend reinvestment plan are automatically reinvested in shares of our common stock. As a result, our stockholders that do not participate in our dividend reinvestment plan could experience dilution in their ownership percentage of our common stock over time if we issue additional shares of our common stock.
Provisions of the Maryland General Corporation Law and our articles of incorporation and bylaws could deter takeover attempts and have an adverse impact on the price of our common stock. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Provisions of the Maryland General Corporation Law and our articles of incorporation and bylaws could deter takeover attempts and have an adverse impact on the price of our common stock. The Maryland General Corporation Law and our articles of incorporation and bylaws contain provisions that may have the effect of discouraging, delaying or making difficult a change in control of our company or the removal of our incumbent directors. The existence of these provisions, among others, may have a negative impact on the price of our common stock and may discourage third-party bids for ownership of our company. These provisions may prevent any premiums being offered to you for our common stock.
We may in the future determine to issue preferred stock, which could adversely affect the value of our common stock. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We may in the future determine to issue preferred stock, which could adversely affect the value of our common stock. The issuance of shares of preferred stock with dividend or conversion rights, liquidation preferences or other economic terms favorable to the holders of preferred stock could adversely affect the value for our common stock by making an investment in the common stock less attractive. In addition, the dividends on any preferred stock we issue must be cumulative. Payment of dividends and repayment of the liquidation preference of preferred stock must take preference over any dividends or other payments to our common stockholders, and holders of preferred stock are not subject to any of our expenses or losses and are not entitled to participate in any income or appreciation in excess of their stated preference (other than convertible preferred stock that converts into common stock). In addition, under the 1940 Act, preferred stock constitutes a “senior security” for purposes of the asset coverage test.
We will be subject to corporate-level U.S. federal income tax if we are unable to qualify as a RIC under Subchapter M of the Code. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We will be subject to corporate-level U.S. federal income tax if we are unable to qualify as a RIC under Subchapter M of the Code. To maintain RIC tax treatment under the Code, we must meet the following annual distribution, income source and asset diversification requirements: • The Annual Distribution Requirement for a RIC will be satisfied if we distribute to our stockholders on an annual basis at least 90% of our net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses, if any. Depending on the level of taxable income earned in a tax year, we may choose to carry forward taxable income in excess of current year distributions into the next tax year and pay a 4% U.S. federal excise tax on such income. Any such carryover taxable income must be distributed through a dividend declared prior to filing the final tax return related to the year which generated such taxable income. For more information regarding tax treatment, see Business — Regulation — Taxation as a Regulated Investment Company. Because we use debt financing, we are subject to certain asset coverage ratio requirements under the 1940 Act and are (and may in the future become) subject to certain financial covenants under loan and credit agreements that could, under certain circumstances, restrict us from making distributions necessary to satisfy the distribution requirement. In addition, because we receive non-cash sources of income such as PIK interest which involves us recognizing taxable income without receiving the cash representing such income, we may have difficulty meeting the distribution requirement. If we are unable to obtain cash from other sources, we could fail to qualify for RIC tax treatment and thus become subject to corporate-level U.S. federal income tax. • The source-of-income requirement will be satisfied if we obtain at least 90% of our gross income for each year from distributions, interest, gains from the sale of stock or securities or similar sources. • The asset diversification requirement will be satisfied if we meet certain asset diversification requirements at the end of each quarter of our taxable year. To satisfy this requirement, at least 50% of the value of our assets must consist of cash, cash equivalents, U.S. government securities, securities of other RICs, and other acceptable securities; and no more than 25% of the value of our assets can be invested in the securities, other than U.S. government securities or securities of other RICs, (i) of one issuer, (ii) of two or more issuers that are controlled, as determined under applicable Code rules, by us and that are engaged in the same or similar or related trades or businesses or (iii) of certain “qualified publicly traded partnerships.” Failure to meet these requirements may result in our having to dispose of certain investments quickly in order to prevent the loss of RIC status. Because most of our investments are in privately held companies, and therefore illiquid, any such dispositions could be made at disadvantageous prices and could result in substantial losses. Moreover, if we fail to maintain RIC tax treatment for any reason and are subject to corporate income tax, the resulting corporate taxes could substantially reduce our net assets, the amount of income available for distribution and the amount of our distributions.
We may have difficulty paying the distributions required to maintain RIC tax treatment under the Code if we recognize income before or without receiving cash representing such income. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We may have difficulty paying the distributions required to maintain RIC tax treatment under the Code if we recognize income before or without receiving cash representing such income. We will include in income certain amounts that we have not yet received in cash, such as: (i) amortization of original issue discount, which may arise if we receive warrants in connection with the origination of a loan such that ascribing a value to the warrants creates original issue discount in the debt instrument, if we invest in a debt investment at a discount to the par value of the debt security or possibly in other circumstances; (ii) contractual payment-in-kind, or PIK, interest, which represents contractual interest added to the loan balance and due at the end of the loan term; (iii) contractual preferred dividends, which represents contractual dividends added to the preferred stock and due at the end of the preferred stock term, subject to adequate profitability at the portfolio company; or (iv) amortization of market discount, which is associated with loans purchased in the secondary market at a discount to par value. Such amortization of original issue discounts increases in loan balances as a result of contractual PIK arrangements, cumulative preferred dividends, or amortization of market discount will be included in income before we receive the corresponding cash payments. We also may be required to include in income certain other amounts before we receive such amounts in cash. Investments structured with these features may represent a higher level of credit risk compared to investments generating income which must be paid in cash on a current basis. Since, in certain cases, we may recognize taxable income before or without receiving cash representing such income, we may have difficulty meeting the Annual Distribution Requirement necessary to maintain RIC tax treatment under the Code. Accordingly, we may have to sell some of our investments at times and/or at prices we would not consider advantageous, raise additional debt or equity capital or forgo new investment opportunities for this purpose. If we are not able to obtain cash from other sources, we may fail to qualify for RIC tax treatment and thus become subject to corporate-level U.S. federal income tax. For additional discussion regarding the tax implications of a RIC, please see Item 1. Business — Regulation — Taxation as a Regulated Investment Company.
We may in the future choose to pay dividends in our own stock, in which case you may be required to pay tax in excess of the cash you receive. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We may in the future choose to pay dividends in our own stock, in which case you may be required to pay tax in excess of the cash you receive. We may distribute taxable dividends that are payable in part in our stock. Under certain applicable provisions of the Code and the Treasury regulations, distributions payable by us in cash or in shares of stock (at the stockholders’ election) would satisfy the Annual Distribution Requirement. The Internal Revenue Service has issued guidance providing that a dividend payable in stock or in cash at the election of the stockholders will be treated as a taxable dividend eligible for the dividends paid deduction provided at least 20% of the total distribution is payable in cash and certain other requirements are satisfied. Taxable stockholders receiving such dividends will be required to include the full amount of the dividend as ordinary income (or as long-term capital gain to the extent such dividend is properly reported as a capital gain dividend) to the extent of our current and accumulated earnings and profits for U.S. federal income tax purposes. As a result, a U.S. stockholder may be required to pay tax with respect to such dividends in excess of any cash received. If a U.S. stockholder sells the stock it receives as a dividend in order to pay this tax, the sales proceeds may be less than the amount included in income with respect to the dividend, depending on the market price of our stock at the time of the sale. Furthermore, with respect to non-U.S. stockholders, we may be required to withhold U.S. tax with respect to such dividends, including in respect of all or a portion of such dividend that is payable in stock. In addition, if a significant number of our stockholders determine to sell shares of our stock in order to pay taxes owed on dividends, it may put downward pressure on the trading price of our stock.
Stockholders may have current tax liability on dividends they elect to reinvest in our common stock but would not receive cash from such dividends to pay such tax liability. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Stockholders may have current tax liability on dividends they elect to reinvest in our common stock but would not receive cash from such dividends to pay such tax liability. If stockholders participate in our dividend reinvestment plan, they will be deemed to have received, and for federal income tax purposes will be taxed on, the amount reinvested in our common stock to the extent the amount reinvested was not a tax-free return of capital. As a result, unless a stockholder is a tax-exempt entity, it may have to use funds from other sources to pay its tax liability on the value of the dividend that they have elected to have reinvested in our common stock.
Legislative or regulatory tax changes could adversely affect our stockholders. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Legislative or regulatory tax changes could adversely affect our stockholders. At any time, the federal income tax laws governing RICs or the administrative interpretations of those laws or regulations may be amended. Any new laws, regulations or interpretations may take effect retroactively and could adversely affect the taxation of us or our stockholders. Therefore, changes in tax laws, regulations or administrative interpretations or any amendments thereto could diminish the value of an investment in our shares or the value or the resale potential of our investments. If we do not comply with applicable laws and regulations, we could lose any licenses that we then hold for the conduct of our business and may be subject to civil fines and criminal penalties.
Events outside of our control, including public health crises, supply chain disruptions and inflation, could negatively affect our portfolio companies and the results of our operations. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Events outside of our control, including public health crises, supply chain disruptions and inflation, could negatively affect our portfolio companies and the results of our operations. Periods of market volatility could occur in response to pandemics or other events outside of our control. We and the portfolio companies in which we invest in could be affected by force majeure events (i.e., events beyond the control of the party claiming that the event has occurred, such as acts of God, fire, flood, earthquakes, outbreaks of an infectious disease, pandemic or any other serious public health concern, war, terrorism, labor strikes, major plant breakdowns, pipeline or electricity line ruptures, failure of technology, defective design and construction, accidents, demographic changes, government macroeconomic policies, social instability, etc.). Some force majeure events could adversely affect the ability of a party (including us, a portfolio company or a counterparty to us) to perform its obligations until it is able to remedy the force majeure event. In addition, force majeure events, such as the cessation of the operation of equipment for repair or upgrade, could similarly lead to the unavailability of essential equipment and technologies. These risks could, among other effects, adversely impact the cash flows available from a portfolio company, cause personal injury or loss of life, including to an officer, director or a member of our investment team, damage property, or instigate disruptions of service. In addition, the cost to a portfolio company or us of repairing or replacing damaged assets resulting from such force majeure event could be considerable. It will not be possible to insure against all such events, and insurance proceeds received, if any, could be inadequate to completely or even partially cover any loss of revenues or investments, any increases in operating and maintenance expenses, or any replacements or rehabilitation of property. Certain events causing catastrophic loss could be either uninsurable, or insurable at such high rates as to adversely impact us or portfolio companies, as applicable. Force majeure events that are incapable of or are too costly to cure could have permanent adverse effects. Certain force majeure events (such as war or an outbreak of an infectious disease) could have a broader negative impact on the world economy and international business activity generally, or in any of the countries in which we invest or our portfolio companies operate specifically. Such force majeure events could result in or coincide with: increased volatility in the global securities, derivatives and currency markets; a decrease in the reliability of market prices and difficulty in valuing assets; greater fluctuations in currency exchange rates; increased risk of default (by both government and private issuers); further social, economic, and political instability; nationalization of private enterprise; greater governmental involvement in the economy or in social factors that impact the economy; less governmental regulation and supervision of the securities markets and market participants and decreased monitoring of the markets by governments or self-regulatory organizations and reduced enforcement of regulations; limited, or limitations on, the activities of investors in such markets; controls or restrictions on foreign investment, capital controls and limitations on repatriation of invested capital; inability to purchase and sell investments or otherwise settle security or derivative transactions (i.e., a market freeze); unavailability of currency hedging techniques; substantial, and in some periods extremely high, rates of inflation, which can last many years and have substantial negative effects on credit and securities markets as well as the economy as a whole; recessions; and difficulties in obtaining and/or enforcing legal judgments.
We are currently operating in a period of capital markets disruption and economic uncertainty. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We are currently operating in a period of capital markets disruption and economic uncertainty, and capital markets may experience periods of disruption and instability in the future. These market conditions may materially and adversely affect debt and equity capital markets in the United States and abroad, which may have a negative impact on our business and operations. The success of our activities is affected by general economic and market conditions, including, among others, interest rates, availability of credit, inflation rates, economic uncertainty, changes in laws, and trade barriers. These factors could affect the level and volatility of securities prices and the liquidity of our investments. Volatility or illiquidity could impair our profitability or result in losses. These factors also could adversely affect the availability or cost of our leverage, which would result in lower returns. These disruptions in the capital markets have increased the spread between the yields realized on risk-free and higher risk securities, resulting in illiquidity in parts of the capital markets. Such disruptions could adversely affect our business, financial condition, results of operations and cash flows, and future market disruptions and/or illiquidity could negatively impact us. These unfavorable economic conditions could increase our funding costs and limit our access to the capital markets, and could result in a decision by lenders not to extend credit to us in the future. These events could limit our investments, our ability to grow and could negatively impact our operating results and the fair values of our debt and equity investments.
Failure to comply with applicable laws or regulations and changes in laws or regulations governing our operations may adversely affect our business or cause us to alter our business strategy. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Failure to comply with applicable laws or regulations and changes in laws or regulations governing our operations may adversely affect our business or cause us to alter our business strategy. We, our Adviser and our portfolio companies are subject to applicable local, state and federal laws and regulations. Failure to comply with any applicable local, state or federal law or regulation could negatively impact our reputation and our business results. New legislation may also be enacted or new interpretations, rulings or regulations could be adopted, including those governing the types of investments we are permitted to make, any of which could harm us and our stockholders, potentially with retroactive effect. Additionally, any changes to the laws and regulations governing our operations relating to permitted investments may cause us to alter our investment strategy in order to avail ourselves of new or different opportunities. Such changes could result in material differences to the strategies and plans set forth herein and may result in our investment focus shifting from the areas of expertise of our Adviser’s investment team to other types of investments in which our Adviser’s investment team may have less expertise or little or no experience. Thus, any such changes, if they occur, could have a material adverse effect on our results of operations and the value of your investment.
We may experience fluctuations in our operating results. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We may experience fluctuations in our operating results. We could experience fluctuations in our operating results due to a number of factors, including our ability or inability to make investments in companies that meet our investment criteria, the interest rate payable on the debt securities we acquire, the level of portfolio dividend and fee income, the level of our expenses, variations in and the timing of the recognition of realized and unrealized gains or losses, the degree to which we encounter competition in our markets and general economic conditions. As a result of these factors, operating results for any period should not be relied upon as being indicative of performance in future periods.
Technological innovations and industry disruptions may negatively impact us. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		Technological innovations and industry disruptions may negatively impact us. Technological innovations have disrupted traditional approaches in multiple industries and can permit younger companies to achieve success and in the process disrupt markets and market practices. We can provide no assurance that new businesses and approaches will not be created that would compete with us and/or our portfolio companies or alter the market practices in which we have been designed to function within and on which we depend on for our investment return. New approaches could damage our investments, disrupt the market in which we operate and subject us to increased competition, which could materially and adversely affect our business, financial condition and results of investments.
We are highly dependent on information systems and systems failures could significantly disrupt our business. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		We are highly dependent on information systems and systems failures could significantly disrupt our business, which may, in turn, negatively affect the market price of our common stock and our ability to pay dividends. Our business is highly dependent on our and third parties’ communications and information systems. Any failure or interruption of those systems, including as a result of the termination of an agreement with any third-party service providers, could cause delays or other problems in our activities. Our and our Adviser’s financial, accounting, data processing, backup or other operating systems and facilities may fail to operate properly or become disabled or damaged as a result of a number of factors including events that are wholly or partially beyond our control and adversely affect our business. There could be: • sudden electrical or telecommunications outages; • natural disasters such as earthquakes, tornadoes and hurricanes; • disease pandemics; • events arising from local or larger scale political or social matters, including terrorist acts; and • cyber-attacks, including software viruses, ransomware, malware and phishing and vishing schemes.
The failure in cyber security systems could impair our ability to conduct business effectively. [Member]
General Description of Registrant [Abstract]
Risk [Text Block]		The failure in cybersecurity systems, as well as the occurrence of events unanticipated in our and our Adviser’s disaster recovery systems and management continuity planning could impair our ability to conduct business effectively. The occurrence of a disaster such as a cyber-attack, a natural catastrophe, an industrial accident, a terrorist attack or war, events unanticipated in our and our Adviser’s disaster recovery systems, or a support failure from external providers, could have an adverse effect on our ability to conduct business and on our results of operations and financial condition, particularly if those events affect our computer-based data processing, transmission, storage, and retrieval systems or destroy data. If a significant number of our managers were unavailable in the event of a disaster, our ability to effectively conduct our business could be severely compromised. We depend heavily upon computer systems to perform necessary business functions. Despite our implementation of a variety of security measures, our and our Adviser’s computer systems could be subject to cyber-attacks and unauthorized access, such as physical and electronic break-ins or unauthorized tampering. Like other companies, we may experience threats to our data and systems, including malware and computer virus attacks, unauthorized access, system failures and disruptions. If one or more of these events occurs, it could potentially jeopardize the confidential, proprietary and other information processed and stored in, and transmitted through, our computer systems and networks, or otherwise cause interruptions or malfunctions in our operations, which could result in damage to our reputation, financial losses, litigation, increased costs, regulatory penalties and/or customer dissatisfaction or loss. Third parties with which we do business (including, but not limited to, service providers, such as accountants, custodians, transfer agents and administrators, and the issuers of securities in which we invest) may also be sources or targets of cybersecurity or other technological risks. While we engage in actions to reduce our exposure resulting from outsourcing, we cannot control the cybersecurity plans and systems put in place by these third parties and ongoing threats may result in unauthorized access, loss, exposure or destruction of data, or other cybersecurity incidents, with increased costs and other consequences, including those described above. Privacy and information security laws and regulation changes, and compliance with those changes, may also result in cost increases due to system changes and the development of new administrative processes.

SUMMARY OF SIGNIFICANT ACCOUN_2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation MSC Income Fund’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, MSC Income Fund’s consolidated financial statements include the accounts of MSIF and its consolidated subsidiaries. The Investment Portfolio, as used herein, refers to all of MSC Income Fund’s investments in Private Loan portfolio companies, investments in LMM portfolio companies, investments in Middle Market portfolio companies and Other Portfolio investments (see Note C — Fair Value Hierarchy for Investments — Portfolio Composition — Investment Portfolio Composition for additional discussion of MSC Income Fund’s Investment Portfolio and definitions for the defined terms Private Loan and Other Portfolio). MSC Income Fund’s results of operations and cash flows for the years ended December 31, 2023, 2022 and 2021 and financial position as of December 31, 2023 and 2022, are presented on a consolidated basis. The effects of all intercompany transactions between MSIF and its consolidated subsidiaries have been eliminated in consolidation.
Principles of Consolidation	Principles of Consolidation Under ASC 946, MSC Income Fund is precluded from consolidating other entities in which MSC Income Fund 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 MSC Income Fund holds a controlling interest in an operating company that provides all or substantially all of its services directly to MSC Income Fund. Accordingly, as noted above, MSC Income Fund’s consolidated financial statements include the financial position and operating results for the Taxable Subsidiaries and the Structured Subsidiaries. MSC Income Fund has determined that none of its portfolio investments qualify for this exception. Therefore, MSC Income Fund’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 MSC Income Fund 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 MSC Income Fund 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 MSC Income Fund 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, MSC Income Fund has excluded consideration of any voting securities or board appointment rights held by Main Street and third-party investment funds advised by the Adviser. Valuation of the Investment Portfolio MSC Income Fund accounts for its Investment Portfolio at fair value. As a result, MSC Income Fund 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 MSC Income Fund 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. MSC Income Fund’s portfolio strategy calls for it to invest primarily in debt securities issued by Middle Market companies and illiquid debt and equity securities issued by privately held, LMM companies. The Middle Market companies in which MSC Income Fund invests are generally larger in size than the LMM companies and their debt securities can be more liquid than the debt securities issued by LMM companies. MSC Income Fund categorizes some of its investments in Middle Market companies and LMM companies as Private Loan portfolio investments, which are primarily debt securities in privately held companies that have primarily been originated directly by our Adviser or, to a lesser extent, through our Adviser’s 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, MSC Income Fund’s Private Loan investments are typically made to support 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 generally consistent with the size of companies MSC Income Fund invests in through its Middle Market portfolio and LMM portfolio. MSC Income Fund’s portfolio also includes Other Portfolio investments which primarily consist of investments that are not consistent with the typical profiles for its Private Loan, LMM or Middle Market portfolio investments, including investments which may be managed by third parties. MSC Income Fund’s portfolio investments may be subject to restrictions on resale. Private Loan investments may include investments which have no established market or have established markets that are not active, while LMM investments and Other Portfolio investments generally have no established trading market. Middle Market portfolio investments generally have established markets that are not active. MSC Income Fund 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. MSC Income Fund’s valuation policies and processes are intended to provide a consistent basis for determining the fair value of MSC Income Fund’s Investment Portfolio. 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, MSC Income Fund 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 model (“Yield-to-Maturity”) valuation method. For LMM portfolio investments, MSC Income Fund 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 valuation method for its LMM debt investments. For Middle Market portfolio investments in debt securities for which it has determined that third-party quotes or other independent prices are available, MSC Income Fund primarily uses quoted prices in the valuation process. MSC Income Fund 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, MSC Income Fund 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 MSC Income Fund’s portfolio investments estimate the value of the investment as if MSC Income Fund was to sell, or exit, the investment as of the measurement date. These valuation approaches consider the value associated with MSC Income Fund’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 MSC Income Fund 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 MSC Income Fund 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, MSC Income Fund 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, MSC Income Fund analyzes various factors including the portfolio company’s historical and projected financial results. Due to SEC deadlines for MSC Income Fund’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, MSC Income Fund also analyzes the impact of exposure to litigation, loss of customers or other contingencies. After determining the appropriate enterprise value, MSC Income Fund 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, MSC Income Fund assumes the loans are paid-off at the principal amount in a change in control transaction and are not assumed by the buyer, which MSC Income Fund believes is consistent with its past transaction history and standard industry practices. Under the Yield-to-Maturity valuation method, MSC Income Fund 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. MSC Income Fund’s estimate of the expected repayment date of its debt securities is generally the maturity date of the instrument, as MSC Income Fund 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. MSC Income Fund will generally use the value determined by the Yield-to-Maturity analysis as the fair value for that security; however, because of MSC Income Fund’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 MSC Income Fund 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, MSC Income Fund 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, MSC Income Fund 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 MSC Income Fund that would affect that fund’s NAV, including, but not limited to, fair values for individual investments held by the fund if MSC Income Fund holds the same investment or for a publicly traded investment. In addition, in determining the fair value of the investment, MSC Income Fund considers whether adjustments to the NAV are necessary in certain circumstances, based on the analysis of any restrictions on redemption of MSC Income Fund’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 MSC Income Fund’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, MSC Income Fund 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 Private Loan portfolio companies, MSC Income Fund, 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 and recommendations and an assurance certification regarding MSC Income Fund’s determinations of the fair value of its Private Loan portfolio company investments. The Financial Advisory Firm is generally consulted relative to MSC Income Fund’s investments in each Private Loan portfolio company at least once every calendar year, and for MSC Income Fund’s investments in new Private Loan portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, MSC Income Fund 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 MSC Income Fund’s investment in a Private Loan portfolio company is determined to be insignificant relative to the total Investment Portfolio. MSC Income Fund 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 55 and 51 Private Loan portfolio companies during the years ended December 31, 2023 and 2022, respectively, representing 79% and 83% of the total Private Loan portfolio at fair value as of December 31, 2023 and 2022, respectively. Excluding its investments in Private Loan portfolio companies that, as of December 31, 2023 and 2022, as applicable, 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, 90% and 94% of the Private Loan portfolio at fair value was reviewed and certified by the Financial Advisory Firm for the years ended December 31, 2023 and 2022, respectively. For valuation purposes, all of MSC Income Fund’s Private Loan portfolio investments are either non-control or affiliate investments. For Private Loan portfolio investments for which it has determined that third-party quotes or other independent pricing are not available or appropriate, MSC Income Fund 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 LMM portfolio companies, MSC Income Fund, among other things, consults with the Financial Advisory Firm. The Financial Advisory Firm analyzes and provides observations, recommendations and an assurance certification regarding MSC Income Fund’s determinations of the fair value of its LMM portfolio company investments. The Financial Advisory Firm is generally consulted relative to MSC Income Fund’s investments in each LMM portfolio company at least once every calendar year, and for MSC Income Fund’s investments in new LMM portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, MSC Income Fund 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 MSC Income Fund’s investment in a LMM portfolio company is determined to be insignificant relative to the total Investment Portfolio. MSC Income Fund consulted with and received an assurance certification from the Financial Advisory Firm in arriving at MSC Income Fund’s determination of fair value for its investments in a total of 46 and 44 LMM portfolio companies during the years ended December 31, 2023 and 2022, respectively, representing 95% and 97% of the total LMM portfolio at fair value as of December 31, 2023 and 2022, respectively. Excluding its investments in LMM portfolio companies that, as of December 31, 2023 and 2022, as applicable, 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, over 99% of the LMM portfolio at fair value was reviewed and certified by the Financial Advisory Firm for both of the years ended December 31, 2023 and December 31, 2022. For valuation purposes, all of MSC Income Fund’s Middle Market portfolio investments are non-control investments. To the extent sufficient observable inputs are available to determine fair value, MSC Income Fund 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, MSC Income Fund 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. MSC Income Fund 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 (97% and 91% as of December 31, 2023 and 2022, respectively) of the Middle Market portfolio investments (i) are valued using third-party quotes or other independent pricing services or (ii) MSC Income Fund has consulted with and received an assurance certification from the Financial Advisory Firm within the last twelve months. For valuation purposes, all of MSC Income Fund’s Other Portfolio investments are non-control, affiliate or control investments. MSC Income Fund’s Other Portfolio investments comprised 2.3% and 2.7% of MSC Income Fund’s Investment Portfolio at fair value as of December 31, 2023 and 2022, 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, MSC Income Fund generally determines the fair value of these investments using the NAV valuation method. Due to the inherent uncertainty in the valuation process, MSC Income Fund’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. MSC Income Fund determines the fair value of each individual investment and records changes in fair value as unrealized appreciation or depreciation. MSC Income Fund uses an internally developed portfolio investment rating system in connection with its investment oversight, portfolio management and analysis and investment valuation procedures for its Private Loan, LMM and Middle Market portfolio companies. This system takes into account both quantitative and qualitative factors of each Private Loan, LMM 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. MSC Income Fund’s Board of Directors has approved policies and procedures pursuant to Rule 2a-5 (the “Valuation Procedures”) and has designated the Adviser, led by a group of Main Street’s and the Adviser’s executive officers, to serve as the Board of Directors’ valuation designee. MSC Income Fund believes its Investment Portfolio as of December 31, 2023 and 2022 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 MSC Income Fund pursuant to valuation policies and procedures approved and overseen by MSC Income Fund’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 MSC Income Fund’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 MSC Income Fund’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 December 31, 2023, the Company had $20.8 million of cash equivalents invested in AAA-rated money market funds. These highly liquid, short-term investments are included in the Consolidated Schedule of Investments. At December 31, 2023 and December 31, 2022, cash balances totaling $9.0 million and $11.7 million, respectively, exceeded Federal Deposit Insurance Corporation insurance protection levels, subjecting the Company to risk related to the uninsured balance.
Interest	MSC Income Fund 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. MSC Income Fund evaluates accrued interest and dividend income periodically for collectability. When a loan or debt security becomes 90 days or more past due, and if MSC Income Fund otherwise does not expect the debtor to be able to service its debt obligation, MSC Income Fund 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, MSC Income Fund removes it from non-accrual status. Interest income from investments in the “equity” class of security of collateralized loan obligation (“CLO”) funds (typically subordinated notes) is recorded based upon an estimation of an effective yield to expected maturity utilizing estimated projected cash flows in accordance with ASC 325-40, Beneficial Interests in Securitized Financial Assets . MSC Income Fund monitors the expected cash inflows from its investment in a CLO, including the expected residual payments, and the effective yield is determined and updated periodically.
Dividend	MSC Income Fund holds certain debt and preferred equity instruments in its Investment Portfolio that contain payment-in-kind (“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.7. — Summary of Significant Accounting Policies — Income Taxes
Fee Income	MSC Income Fund 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. Fees received in connection with debt financing transactions 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 incurred in connection with arranging MSC Income Fund’s borrowings. These costs were incurred in connection with MSC Income Fund’s multi-year revolving Credit Facilities (as defined below in Note E — Debt ) and have been capitalized as an asset and reflected in the Consolidated Balance Sheets as Deferred financing costs. Deferred financing costs incurred in connection with the Series A Notes (as defined below in Note E — Debt ) are a direct deduction from the principal amount outstanding.
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 MSC Income Fund 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, MSC Income Fund 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 MSC Income Fund 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. MSC Income Fund 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, MSC Income Fund 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, MSC Income Fund 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. To maintain RIC tax treatment (as discussed in Note B.7. — 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 MSC Income Fund may not have collected the interest income. For the years ended December 31, 2023, 2022 and 2021, 2.5%, 2.5%, and 5.7%, respectively, of MSC Income Fund’s total investment income was attributable to interest income from the accretion of discounts associated with debt investments, net of any premium amortization.
Income Taxes	Income Taxes MSIF has elected to be treated for U.S. federal income tax purposes as a RIC. MSIF’s taxable income includes the taxable income generated by MSIF and certain of its subsidiaries, including the Structured Subsidiaries, which are treated as disregarded entities for tax purposes. As a RIC, MSIF generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that MSIF distributes to its stockholders. MSIF 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 MSC Income Fund. The Taxable Subsidiaries permit MSC Income Fund 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 MSC Income Fund for U.S. GAAP financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries are included in MSC Income Fund’s consolidated financial statements as portfolio investments and recorded at fair value. The Taxable Subsidiaries are not consolidated with MSIF 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 MSC Income Fund’s consolidated financial statements. The Taxable Subsidiaries 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. MSC Income Fund’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. MSC Income Fund 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. To estimate the fair value of MSC Income Fund’s Series A Notes as disclosed in Note E — Debt , MSC Income Fund 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 MSC Income Fund’s debt instrument are considered to be Level 2 according to the ASC 820 fair value hierarchy.
Earnings per Share	Earnings per Share Net increase in net assets resulting from operations per share and net investment income per share are computed utilizing the weighted-average number of shares of common stock outstanding for the period.
Recently Issued or Adopted Accounting Standards	Recently Issued or Adopted Accounting Standards In March 2020, the FASB issued ASU 2020-04, Reference rate reform (Topic 848) — Facilitation of the effects of reference rate reform on financial reporting . The amendments in this update provide optional expedients and exceptions for applying U.S. GAAP to certain contracts and hedging relationships that reference LIBOR or another reference rate expected to be discontinued due to reference rate reform and became effective upon issuance for all entities. The Company has agreements that have LIBOR as a reference rate with certain portfolio companies and also with certain lenders. Many of these agreements include language for choosing an alternative successor rate if LIBOR reference is no longer considered to be appropriate. Contract modifications are required to be evaluated in determining whether the modifications result in the establishment of new contracts or the continuation of existing contracts. The Company adopted this amendment in March 2020 and plans to apply the amendments in this update to account for contract modifications due to changes in reference rates when LIBOR reference is no longer used. 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 years ended December 31, 2023 and 2022, the effect of which was not material to the consolidated financial statements and the notes thereto. The Company will continue to utilize the optional expedients provided by ASU 2020-04 and extended by ASU 2022-06 through December 31, 2024. The Company does not expect ASU 2022-06 to have a material impact to the consolidated financial statements and the notes thereto. In June 2022, the FASB issued ASU 2022-03, Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions. The amendments in this update provide that a contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security and, therefore, is not considered in measuring fair value. The amendments in this update also require additional disclosures for equity securities subject to contractual sales restrictions. ASU 2022-03 is effective for years beginning after December 15, 2023, though early adoption is permitted. The Company elected to early adopt ASU 2022-03 as of December 31, 2022 and it 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. MSC Income Fund accounts for its investments at fair value. Fair Value Hierarchy In accordance with ASC 820, MSC Income Fund 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 MSC Income Fund’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 MSC Income Fund 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 December 31, 2023 and 2022, MSC Income Fund’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 MSC Income Fund’s Private Loan portfolio investments were categorized as Level 3 as of December 31, 2023 and 2022. As of December 31, 2023 and 2022, all of MSC Income Fund’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 MSC Income Fund’s LMM portfolio investments were categorized as Level 3 as of December 31, 2023 and 2022. As of December 31, 2023 and 2022, MSC Income Fund’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 MSC Income Fund’s Middle Market portfolio investments were categorized as Level 3 as of December 31, 2023 and 2022. As of December 31, 2023 and 2022, MSC Income Fund’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 MSC Income Fund’s Other Portfolio investments were categorized as Level 3 as of December 31, 2023 and 2022. As of 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.

SUMMARY OF SIGNIFICANT ACCOUN_3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Schedule of Investment Income	A presentation of total investment income MSC Income Fund received from its Investment Portfolio in each of the periods presented is as follows: Year Ended 2023 2022 2021 (dollars in thousands) Interest, fee and dividend income: Interest income $ 116,976 $ 90,811 $ 72,536 Dividend income 11,255 9,442 15,880 Fee income 3,155 3,512 1,712 Total interest, fee and dividend income $ 131,386 $ 103,765 $ 90,128

FAIR VALUE HIERARCHY FOR INVE_2

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION (Tables)	12 Months Ended
	Dec. 31, 2023
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 MSC Income Fund’s Level 3 portfolio investments as of December 31, 2023 and 2022: Type of Fair Value as of December 31, 2023 (in thousands) Valuation Technique Significant Range(3) Weighted Average(3) Median(3) Equity investments $ 254,770 Discounted cash flow WACC 10.9% - 22.5% 14.4 % 15.5 % Market comparable / Enterprise value EBITDA multiple (1) 4.9x - 9.2x (2) 7.3x 6.5x Debt investments $ 777,003 Discounted cash flow Risk adjusted discount factor (4) 9.8% - 16.8% (2) 13.1 % 12.8 % Expected principal recovery percentage 0.6% - 100.0% 99.6 % 100.0 % Debt investments $ 61,122 Market approach Third-party quote 4.5 - 99.2 85.0 89.5 Total Level 3 investments $ 1,092,895 _____________________________ (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 8.0% - 27.3%. (3) Does not include investments for which the valuation technique does not include the use of the applicable fair value input. (4) Discount rate includes the effect of the standard SOFR base rate, as applicable. Type of Fair Value as of December 31, 2022 (in thousands) Valuation Technique Significant Range(3) Weighted Median(3) Equity investments $ 215,861 Discounted cash flow WACC 10.4% - 22.5% 14.3 % 15.7 % Market comparable / Enterprise value EBITDA multiple (1) 4.3x - 8.5x (2) 7.2x 6.4x Debt investments $ 743,887 Discounted cash flow Risk adjusted discount factor (4) 8.5% - 18.2% (2) 13.0 % 12.4 % Expected principal recovery percentage 0.7% - 100.0% 99.1 % 100.0 % Debt investments $ 108,395 Market approach Third-party quote 5.6 - 98.5 85.7 90.0 Total Level 3 investments $ 1,068,143 _____________________________ (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 6.5% - 43.3%. (3) Does not include investments for which the valuation technique does not include the use of the applicable fair value input. (4) Discount rate includes the effect of the standard LIBOR and SOFR base rate, as applicable.
Schedule of MSC Income Fund’s Level 3 Portfolio Investments	The following tables provide a summary of changes in fair value of MSC Income Fund’s Level 3 portfolio investments for the years ended December 31, 2023 and 2022 (amounts in thousands): Type of Fair Value as of December 31, Transfers Redemptions/ New Net Net Other(1) Fair Value as of December 31, 2023 Debt $ 852,282 $ — $ (253,517) $ 230,663 $ 33,078 $ (5,467) $ (18,914) $ 838,125 Equity 214,687 — (15,329) 16,377 923 17,352 20,019 254,029 Equity Warrant 1,174 — (284) 523 284 149 (1,105) 741 $ 1,068,143 $ — $ (269,130) $ 247,563 $ 34,285 $ 12,034 $ — $ 1,092,895 _____________________________ (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 Fair Value as of December 31, 2021 Transfers Redemptions/ New Net Net Other(1) Fair Value as of December 31, Debt $ 879,970 $ — $ (205,481) $ 211,631 $ 10,645 $ (42,747) $ (1,736) $ 852,282 Equity 196,374 — (22,234) 7,728 (7,037) 38,120 1,736 214,687 Equity Warrant 792 — (45) 1,111 (305) (379) — 1,174 $ 1,077,136 $ — $ (227,760) $ 220,470 $ 3,303 $ (5,006) $ — $ 1,068,143 _____________________________ (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 MSC Income Fund's Investments at Fair Value Hierarchy	At December 31, 2023 and 2022, MSC Income Fund’s investments at fair value were categorized as follows in the fair value hierarchy for ASC 820 purposes: Fair Value Measurements (in thousands) At December 31, 2023 Fair Value Quoted Prices in Significant Other Significant Private Loan portfolio investments $ 595,326 $ — $ — $ 595,326 LMM portfolio investments 386,956 — — 386,956 Middle Market portfolio investments 85,990 — — 85,990 Other Portfolio investments 24,623 — — 24,623 Total investments $ 1,092,895 $ — $ — $ 1,092,895 Fair Value Measurements (in thousands) At December 31, 2022 Fair Value Quoted Prices in Significant Other Significant Private Loan portfolio investments $ 559,763 $ — $ — $ 559,763 LMM portfolio investments 352,661 — — 352,661 Middle Market portfolio investments 126,744 — — 126,744 Other Portfolio investments 28,975 — — 28,975 Total investments $ 1,068,143 $ — $ — $ 1,068,143
Schedule of Investment Holdings	The following tables provide a summary of MSC Income Fund’s investments in the Private Loan, LMM and Middle Market portfolios as of December 31, 2023 and 2022 (this information excludes Other Portfolio investments, which are discussed further below): As of December 31, 2023 Private Loan LMM (a) Middle Market (dollars in millions) Number of portfolio companies 78 50 16 Fair value $ 595.3 $ 387.0 $ 86.0 Cost $ 586.4 $ 315.7 $ 114.7 Debt investments as a % of portfolio (at cost) 94.1 % 70.2 % 93.1 % Equity investments as a % of portfolio (at cost) 5.9 % 29.8 % 6.9 % % of debt investments at cost secured by first priority lien 100.0 % 99.9 % 100.0 % Weighted-average annual effective yield (b) 13.1 % 13.0 % 13.0 % Average EBITDA (c) $ 30.5 $ 8.8 $ 74.2 _____________________________ (a) At December 31, 2023, MSC Income Fund had equity ownership in all of its LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was 9%. (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 MSC Income Fund’s debt portfolio as of December 31, 2023 including debt investments on non-accrual status was 12.6% for its Private Loan portfolio, 13.0% for its LMM portfolio and 9.9% for its Middle Market portfolio. The weighted-average annual effective yield is not reflective of what an investor in shares of MSC Income Fund’s common stock will realize on its investment because it does not reflect MSC Income Fund’s utilization of debt capital in its capital structure, MSC Income Fund’s expenses or any sales load paid by an investor. (c) The average EBITDA is calculated using a weighted-average for the Private Loan and Middle Market portfolios and a simple average for the LMM portfolio. These calculations exclude one Private Loan portfolio company, as EBITDA is not a meaningful valuation metric for MSC Income Fund’s investment in this portfolio company and those portfolio companies whose primary purpose is to own real estate. As of December 31, 2022 Private Loan LMM (a) Middle Market (dollars in millions) Number of portfolio companies 70 48 21 Fair value $ 559.8 $ 352.7 $ 126.7 Cost $ 563.0 $ 312.5 $ 159.7 Debt investments as a % of portfolio (at cost) 96.2 % 73.2 % 95.0 % Equity investments as a % of portfolio (at cost) 3.8 % 26.8 % 5.0 % % of debt investments at cost secured by first priority lien 99.4 % 99.9 % 98.5 % Weighted-average annual effective yield (b) 11.8 % 12.1 % 11.3 % Average EBITDA (c) $ 36.8 $ 8.6 $ 79.2 _____________________________ (a) At December 31, 2022, MSC Income Fund had equity ownership in all of its LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was 9%. (b) The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2022, 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 MSC Income Fund’s debt portfolio as of December 31, 2022 including debt investments on non-accrual status was 11.4% for its Private Loan portfolio, 11.7% for its LMM portfolio and 9.7% for its Middle Market portfolio. The weighted-average annual effective yield is not reflective of what an investor in shares of MSC Income Fund’s common stock will realize on its investment because it does not reflect MSC Income Fund’s utilization of debt capital in its capital structure, MSC Income Fund’s expenses or any sales load paid by an investor. (c) The average EBITDA is calculated using a weighted-average for the Private Loan and Middle Market portfolios and a simple average for the LMM portfolio. These calculations exclude certain portfolio companies, including one Private Loan portfolio company, as EBITDA is not a meaningful valuation metric for MSC Income Fund’s investment in this portfolio company, and those portfolio companies whose primary purpose is to own real estate. The following tables summarize the composition of MSC Income Fund’s total combined Private Loan, LMM and Middle Market portfolio investments at cost and fair value by type of investment as a percentage of the total combined Private Loan, LMM and Middle Market portfolio investments, as of December 31, 2023 and 2022 (this information excludes Other Portfolio investments). Cost: December 31, 2023 December 31, 2022 First lien debt 86.5 % 88.5 % Equity 13.3 10.8 Second lien debt — 0.3 Equity warrants 0.2 0.2 Other — 0.2 100.0 % 100.0 % Fair Value: December 31, 2023 December 31, 2022 First lien debt 78.4 % 81.4 % Equity 21.5 17.9 Second lien debt — 0.3 Equity warrants 0.1 0.1 Other — 0.3 100.0 % 100.0 % The following tables summarize the composition of MSC Income Fund’s total combined Private Loan, LMM 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 Private Loan, LMM and Middle Market portfolio investments, as of December 31, 2023 and 2022 (this information excludes Other Portfolio investments). The geographic composition is determined by the location of the corporate headquarters of the portfolio company. Cost: December 31, 2023 December 31, 2022 Southwest 23.8 % 22.2 % Northeast 21.9 20.3 Southeast 17.8 17.8 Midwest 17.6 15.1 West 17.0 22.9 Canada 0.8 0.8 Other Non-United States 1.1 0.9 100.0 % 100.0 % Fair Value: December 31, 2023 December 31, 2022 Southwest 26.8 % 25.3 % Northeast 21.6 20.3 Midwest 18.3 15.9 West 16.4 21.1 Southeast 15.0 15.2 Canada 0.8 1.2 Other Non-United States 1.1 1.0 100.0 % 100.0 % MSC Income Fund’s Private Loan, LMM and Middle Market portfolio investments are in companies conducting business in a variety of industries. The following tables summarize the composition of MSC Income Fund’s total combined Private Loan, LMM and Middle Market portfolio investments by industry at cost and fair value as of December 31, 2023 and 2022 (this information excludes Other Portfolio investments). Cost: December 31, 2023 December 31, 2022 Internet Software & Services 8.8 % 7.8 % Commercial Services & Supplies 8.5 11.3 Health Care Providers & Services 6.5 4.9 Machinery 6.0 5.9 Professional Services 5.7 3.7 Diversified Consumer Services 5.4 4.7 IT Services 5.2 4.9 Distributors 4.4 5.0 Containers & Packaging 4.3 3.4 Leisure Equipment & Products 3.7 3.7 Textiles, Apparel & Luxury Goods 3.1 2.0 Computers & Peripherals 2.9 1.9 Specialty Retail 2.7 4.0 Communications Equipment 2.7 3.5 Aerospace & Defense 2.6 3.6 Media 2.5 2.4 Construction & Engineering 2.5 2.5 Electrical Equipment 2.2 1.8 Building Products 2.1 2.4 Hotels, Restaurants & Leisure 2.1 2.0 Diversified Financial Services 2.1 1.7 Household Products 2.0 1.5 Internet & Catalog Retail 1.6 1.3 Food & Staples Retailing 1.5 0.9 Software 1.4 1.3 Health Care Equipment & Supplies 1.3 1.2 Food Products 0.9 1.1 Energy Equipment & Services 0.5 1.2 Diversified Telecommunication Services 0.1 3.4 Other (1) 4.7 5.0 100.0 % 100.0 % _____________________________ (1) Includes various industries with each industry individually less than 1.0% of the total combined Private Loan, LMM and Middle Market portfolio investments at each date. Fair Value: December 31, 2023 December 31, 2022 Machinery 7.4 % 7.5 % Commercial Services & Supplies 7.3 10.3 Internet Software & Services 7.3 6.7 Diversified Consumer Services 6.5 5.9 Health Care Providers & Services 6.0 4.6 Professional Services 5.5 2.8 IT Services 5.0 4.7 Distributors 4.6 5.5 Computers & Peripherals 4.6 2.8 Containers & Packaging 4.6 3.8 Leisure Equipment & Products 3.3 3.7 Construction & Engineering 3.1 2.9 Textiles, Apparel & Luxury Goods 2.9 2.0 Specialty Retail 2.7 3.1 Media 2.6 2.6 Aerospace & Defense 2.5 3.5 Electrical Equipment 2.3 1.9 Construction Materials 2.2 2.1 Diversified Financial Services 2.0 1.8 Building Products 1.9 2.5 Household Products 1.9 1.3 Software 1.7 1.7 Air Freight & Logistics 1.6 1.2 Hotels, Restaurants & Leisure 1.6 1.5 Internet & Catalog Retail 1.5 1.9 Food & Staples Retailing 1.2 0.8 Communications Equipment 1.1 1.3 Energy Equipment & Services 0.3 1.0 Diversified Telecommunication Services 0.1 3.6 Other (1) 4.7 5.0 100.0 % 100.0 % _____________________________ (1) Includes various industries with each industry individually less than 1.0% of the total combined Private Loan, LMM and Middle Market portfolio investments at each date.

DEBT (Tables)

DEBT (Tables)	12 Months Ended
	Dec. 31, 2023
Debt Disclosure [Abstract]
Schedule of Debt	Summary of MSC Income Fund’s debt as of December 31, 2023 is as follows: Outstanding Balance Unamortized Debt Issuance Costs (1) Recorded Value Estimated Fair Value (2) (dollars in thousands) SPV Facility $ 203,688 $ — $ 203,688 $ 203,688 Series A Notes 150,000 (845) 149,155 141,531 Corporate Facility 132,000 — 132,000 132,000 Total Debt $ 485,688 $ (845) $ 484,843 $ 477,219 _____________________________ (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 Series A Notes are reflected as a contra-liability to the Series A Notes on the Consolidated Balance Sheets. (2) Estimated fair value for outstanding debt if MSC Income Fund had adopted the fair value option under ASC 825. See discussion of the methods used to estimate the fair value of MSC Income Fund’s debt in Note B.9. — Summary of Significant Accounting Policies — Fair Value of Financial Instruments . Summary of MSC Income Fund’s debt as of December 31, 2022 is as follows: Outstanding Balance Unamortized Debt Issuance Costs (1) Recorded Value Estimated Fair Value (2) (dollars in thousands) SPV Facility $ 223,688 $ — $ 223,688 $ 223,688 Series A Notes 150,000 (1,144) 148,856 132,955 Corporate Facility 98,000 — 98,000 98,000 Total Debt $ 471,688 $ (1,144) $ 470,544 $ 454,643 _____________________________ (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 Series A Notes are reflected as a contra-liability to the Series A Notes on the Consolidated Balance Sheets. (2) Estimated fair value for outstanding debt if MSC Income Fund had adopted the fair value option under ASC 825. See discussion of the methods used to estimate the fair value of MSC Income Fund’s debt in Note B.9. — Summary of Significant Accounting Policies — Fair Value of Financial Instruments .
Schedule of Interest Expense	Summarized interest expense for the years ended December 31, 2023, 2022 and 2021 is as follows: Year Ended December 31, 2023 2022 2021 (dollars in thousands) SPV Facility $ 22,184 $ 13,856 $ 8,255 Series A Notes 6,358 6,167 653 Corporate Facility 7,916 4,400 2,681 Deutsche Bank Credit Facility (1) — — 1,045 Main Street Term Loan (2) — — 1,835 Total Interest Expense $ 36,458 $ 24,423 $ 14,469 _____________________________ (1) Deutsche Bank Credit Facility was fully repaid and extinguished on February 3, 2021. (2) Main Street Term Loan was fully repaid and extinguished on October 22, 2021.
Schedule of Contractual Payment Obligations	A summary of the Company’s contractual payment obligations for the repayment of outstanding indebtedness at December 31, 2023 is as follows: 2024 2025 2026 2027 2028 Thereafter Total (dollars in thousands) SPV Facility (1) $ — $ — $ — $ — $ 203,688 $ — $ 203,688 Series A Notes (2) — — 150,000 — — — 150,000 Corporate Facility (3) — — 132,000 — — — 132,000 Total $ — $ — $ 282,000 $ — $ 203,688 $ — $ 485,688 _____________________________ (1) At December 31, 2023, MSIF Funding had $96.3 million of undrawn lender commitments under the SPV Facility; however, MSIF Funding’s borrowing ability is limited by leverage and borrowing base restrictions imposed by the SPV Facility and the 1940 Act, as discussed above. (2) MSC Income Fund issued $77.5 million of Series A Notes upon entering into the Note Purchase Agreement on October 22, 2021 and an additional $72.5 million on January 21, 2022. (3) At December 31, 2023, MSC Income Fund had $33.0 million of undrawn lender commitments under the Corporate Facility; however, MSC Income Fund’s borrowing ability is limited by leverage and borrowing base restrictions imposed by the Corporate Facility and the 1940 Act, as discussed above.

FINANCIAL HIGHLIGHTS (Tables)

FINANCIAL HIGHLIGHTS (Tables)	12 Months Ended
	Dec. 31, 2023
Investment Company [Abstract]
Schedule of Financial Highlights of MSC Income Fund	The following is a schedule of financial highlights of MSC Income Fund for the years ended December 31, 2023, 2022, 2021, 2020 and 2019: Year Ended December 31, Per Share Data: 2023 2022 2021 2020 2019 NAV at the beginning of the period $ 7.61 $ 7.68 $ 7.28 $ 7.77 $ 7.96 Net investment income (1)(6) 0.72 0.66 0.67 0.59 0.71 Net realized loss (1)(2) (0.42) (0.05) (0.04) (0.66) (0.23) Net unrealized appreciation (depreciation) (1)(2) 0.58 (0.02) 0.31 (0.03) 0.04 Income tax provision (1)(2) (0.05) (0.02) (0.02) (0.02) (0.01) Net increase (decrease) in net assets resulting from operations (1) 0.83 0.57 0.92 (0.12) 0.51 Dividends paid from net investment income (0.70) (0.65) (0.53) (0.35) (0.68) Dividends paid from capital gains — — — — (0.02) Dividends paid or accrued (3) (0.70) (0.65) (0.53) (0.35) (0.70) Accretive effect of stock repurchases (repurchasing shares below NAV) (4) 0.03 — — — — Other (5)(6) — 0.01 0.01 (0.02) — NAV at the end of the period $ 7.77 $ 7.61 $ 7.68 $ 7.28 $ 7.77 Shares outstanding at the end of the period 80,108,865 80,105,999 79,826,605 79,608,304 78,463,377 _____________________________ (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) Represents stockholder dividends paid or accrued for the period. (4) Shares repurchased in connection with the modified Dutch auction tender offers. See Note H — Share Repurchases for additional information. (5) 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. (6) Reclassifications have been made to certain prior year per share data. The 2020 “Other” and 2019 “Net investment income” per share amounts have been adjusted to reflect the income tax provision effect separately rather than as a component of these values. Year Ended December 31, 2023 2022 2021 2020 2019 (dollars in thousands) NAV at end of period $ 622,307 $ 609,665 $ 613,170 $ 579,624 $ 609,305 Average NAV $ 613,525 $ 611,214 $ 593,440 $ 557,382 $ 622,708 Average outstanding debt $ 487,271 $ 494,957 $ 321,973 $ 386,084 $ 474,000 Ratio of total expenses, including income tax expense, to average NAV(1)(2)(4) 12.63 % 8.60 % 6.51 % 7.38 % 9.11 % Ratio of operating expenses to average NAV(2)(4) 12.02 % 8.33 % 6.20 % 7.16 % 9.11 % Ratio of operating expenses, excluding interest expense, to average NAV(2)(4) 6.07 % 4.33 % 3.76 % 4.07 % 4.86 % Ratio of operating expenses, excluding interest expense and incentive fees, to average NAV(2)(4) 4.02 % 3.98 % 3.66 % 4.07 % 4.22 % Ratio of net investment income to average NAV(4) 9.40 % 8.65 % 8.99 % 8.40 % 8.84 % Portfolio turnover ratio 21.82 % 18.92 % 35.39 % 8.93 % 33.30 % Total return based on change in NAV(3)(4) 10.86 % 7.43 % 12.71 % (1.80) % 6.41 % _____________________________ (1) Total expenses are the sum of operating expenses and net income tax provision or benefit. Net income tax provision or benefit includes the accrual of net deferred tax provision or benefit relating to the net unrealized appreciation or depreciation on portfolio investments held in the 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. MSC Income Fund is required to include net deferred tax provision or benefit in calculating its total expenses even though these net deferred taxes are not currently payable or receivable. (2) Unless otherwise noted, operating expenses include interest, management fees, incentive fees and general and administrative expenses. (3) Total return is calculated based on the change in NAV per share and stockholder distributions declared per share during the reporting period, divided by the NAV per share at the beginning of the period. The total return does not reflect the sales load from the sale of MSC Income Fund’s common stock. (4) Net of expense waivers of $8.3 million, $4.5 million, $4.3 million, $3.6 million and $3.1 million in 2023, 2022, 2021, 2020 and 2019, respectively. Excluding these expense waivers, the expense and income ratios are as follows: Year Ended December 31, 2023 2022 2021 2020 2019 Ratio of total expenses, including income tax expense, to average NAV(1)(2) 13.98 % 9.33 % 7.24 % 8.11 % 9.84 % Ratio of operating expenses to average NAV(2) 13.37 % 9.06 % 6.92 % 7.89 % 9.84 % Ratio of operating expenses, excluding interest expense, to average NAV(2) 7.43 % 5.07 % 4.49 % 4.80 % 5.58 % Ratio of operating expenses, excluding interest expense and incentive fees, to average NAV(2) 5.38 % 4.72 % 4.39 % 4.80 % 4.95 % Ratio of net investment income to average NAV 8.05 % 7.90 % 8.26 % 7.67 % 8.11 % Total return based on change in NAV(3) 9.50 % 6.69 % 11.98 % (2.20) % 5.85 % _____________________________ See footnotes (1), (2), (3) and (4) immediately prior to this table.

DIVIDENDS, DISTRIBUTIONS AND _2

DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME (Tables)	12 Months Ended
	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Schedule of Investment Company, Distribution To Shareholders	The tax character of distributions paid for the years ended December 31, 2023, 2022 and 2021 was as follows: Year Ended December 31, 2023 2022 2021 (dollars in thousands) Ordinary income (1) $ 47,756 $ 61,854 $ 29,797 Qualified dividends 8,301 1,727 92 Distributions on tax basis $ 56,057 $ 63,581 $ 29,889
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 years ended December 31, 2023, 2022 and 2021. Year Ended December 31, 2023 2022 2021 (estimated, dollars in thousands) Net increase in net assets resulting from operations $ 66,209 $ 45,588 $ 73,636 Net unrealized (appreciation) depreciation (46,319) 1,702 (25,095) Income tax provision 3,769 1,643 1,890 Pre-tax book (income) loss not consolidated for tax purposes 4,241 (9,748) (17,640) Book income and tax income differences, including debt origination, structuring fees, dividends, realized gains and changes in estimates 22,228 9,820 3,171 Estimated taxable income (1) 50,128 49,005 35,962 Taxable income earned in prior year and carried forward for distribution in current year 20,674 23,276 29,173 Taxable income earned prior to period end and carried forward for distribution next period (28,764) (33,491) (35,250) Dividend accrued as of period end and paid in the following period 14,019 12,817 11,974 Taxable income earned to be carried forward (14,745) (20,674) (23,276) Total distributions accrued or paid to common stockholders $ 56,057 $ 51,607 $ 41,859 _____________________________ (1) MSIF’s taxable income for each period is an estimate and will not be finally determined until MSIF 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 Provision for Income Taxes	MSC Income Fund’s provision for income taxes was comprised of the following for the years ended December 31, 2023, 2022 and 2021: Year Ended December 31, 2023 2022 2021 (dollars in thousands) Current tax expense: Federal $ 13 $ 33 $ — State 340 495 495 Excise 519 753 1,395 Total current tax expense 872 1,281 1,890 Deferred tax expense (benefit): Federal 3,450 351 — State (553) 11 — Total deferred tax expense 2,897 362 — Total income tax provision $ 3,769 $ 1,643 $ 1,890
Schedule of Deferred Tax Assets and Liabilities	The following table sets forth the significant components of net deferred tax assets and liabilities as of December 31, 2023 and 2022: Year Ended 2023 2022 (dollars in thousands) Deferred tax assets: Net operating loss carryforwards $ 671 $ 398 Interest expense carryforwards 3,258 1,426 General business and foreign tax credit carryforwards 329 156 Capital loss carryforwards 6,041 10,013 Total deferred tax assets 10,299 11,993 Deferred tax liabilities: Net basis differences in portfolio investments (1,484) (3,777) Net unrealized appreciation of portfolio investments (12,074) (8,578) Total deferred tax liabilities (13,558) (12,355) Total deferred tax liabilities, net $ (3,259) $ (362)

SHARE REPURCHASES (Tables)

SHARE REPURCHASES (Tables)	12 Months Ended
	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Schedule of Common Stock Pursuant	Repurchases of MSC Income Fund’s common stock pursuant to its share repurchase program and modified Dutch auction tender offers for the years ended December 31, 2023, 2022 and 2021 are as follows: Period Total number of shares purchased Average price paid per share Total number of shares purchased as part of publicly announced plans or programs Approximate dollar value of shares that may yet be purchased under the plans or programs April 1 through June 30, 2021 383,513 $ 7.46 383,513 N/A July 1 through September 30, 2021 438,292 7.57 438,292 N/A October 1 through December 31, 2021 511,314 7.60 511,314 N/A January 1 through March 31, 2022 489,031 7.75 489,031 N/A April 1 through June 30, 2022 536,065 7.77 536,065 N/A July 1 through September 30, 2022 527,508 7.64 527,508 N/A October 1 through December 31, 2022 522,310 7.66 522,310 N/A January 1 through March 31, 2023 519,489 7.67 519,489 N/A April 1 through June 30, 2023 (1) 965,568 6.59 965,568 N/A July 1 through September 30, 2023 (2) 978,579 7.12 978,579 N/A October 1 through December 31, 2023 (3) 958,928 7.12 958,928 N/A Total 6,830,597 6,830,597 _____________________________ (1) Includes 406,904 shares repurchased under the Dutch auction tender offer pursuant to the to the tender offer statement and Offer to Purchase filed with the SEC on May 15, 2023 at a price of $5.50 per share for an aggregate cost of $2.2 million. (2) Includes 432,920 shares repurchased under the Dutch auction tender offer pursuant to the to the tender offer statement and Offer to Purchase filed with the SEC on June 14, 2023 at a price of $6.50 per share for an aggregate cost of $2.8 million. (3) Includes 427,843 shares repurchased under the Dutch auction tender offer pursuant to the to the tender offer statement and Offer to Purchase filed with the SEC on November 15, 2023 at a price of $6.50 per share for an aggregate cost of $2.8 million

DIVIDEND REINVESTMENT PLAN (Tab

DIVIDEND REINVESTMENT PLAN (Tables)	12 Months Ended
	Dec. 31, 2023
Equity [Abstract]
Schedule of Summarized Dividend Reinvestment Plan Information	Summarized DRIP information for the years ended December 31, 2023, 2022 and 2021 is as follows: Year Ended December 31, 2023 2022 2021 (dollars in thousands) DRIP participation $ 18,417 $ 17,750 $ 11,160 Shares issued for DRIP 2,345,246 2,259,611 1,461,776

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Tables)	12 Months Ended
	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Schedule of Outstanding Commitments	At December 31, 2023, MSC Income Fund had the following outstanding commitments (in thousands): Investments with equity capital commitments that have not yet funded: Amount Brightwood Capital Fund III, LP $ 216 Freeport First Lien Loan Fund III LP 8,340 HPEP 3, L.P. 1,308 Total Equity Commitments $ 9,864 Investments with commitments to fund revolving loans that have not been fully drawn or term loans with additional commitments not yet funded: CQ fluency, LLC $ 4,500 Mako Steel, LP 4,057 Power System Solutions 3,989 Insight Borrower Corporation 3,888 AB Centers Acquisition Corporation 2,810 Garyline, LLC 2,626 SI East, LLC 2,125 Mini Melts of America, LLC 1,988 Bluestem Brands, Inc. 1,840 American Health Staffing Group, Inc. 1,667 IG Parent Corporation 1,667 ArborWorks, LLC 1,481 Infolinks Media Buyco, LLC 1,260 Burning Glass Intermediate Holding Company, Inc. 1,239 Bettercloud, Inc. 1,216 Richardson Sales Solutions 1,061 HEADLANDS OP-CO LLC 1,000 IG Investor, LLC 1,000 NexRev LLC 1,000 SPAU Holdings, LLC 1,000 Roof Opco, LLC 972 Bond Brand Loyalty ULC 900 Classic H&G Holdco, LLC 860 Engineering Research & Consulting, LLC 828 VVS Holdco, LLC 800 Cody Pools, Inc. 786 Purge Rite, LLC 781 Acumera, Inc. 768 NinjaTrader, LLC 750 Imaging Business Machines, L.L.C. 692 Centre Technologies Holdings, LLC 600 Paragon Healthcare, Inc. 571 Invincible Boat Company, LLC. 561 AVEX Aviation Holdings, LLC 512 Evergreen North America Acquisitions, LLC 501 Wall Street Prep, Inc. 500 Watterson Brands, LLC 484 GRT Rubber Technologies LLC 468 JTI Electrical & Mechanical, LLC 440 RA Outdoors LLC 438 Microbe Formulas, LLC 434 PTL US Bidco, Inc 427 CaseWorthy, Inc. 400 Trantech Radiator Topco, LLC 400 Chamberlin Holding LLC 400 Johnson Downie Opco, LLC 400 Channel Partners Intermediateco, LLC 381 ITA Holdings Group, LLC 366 Escalent, Inc. 349 South Coast Terminals Holdings, LLC 343 Gamber-Johnson Holdings, LLC 300 Pinnacle TopCo, LLC 285 Batjer TopCo, LLC 230 Metalforming Holdings, LLC 205 Career Team Holdings, LLC 200 ATS Operating, LLC 200 Mystic Logistics Holdings, LLC 200 Orttech Holdings, LLC 200 Analytical Systems Keco Holdings, LLC 145 Elgin AcquireCo, LLC 123 Clad-Rex Steel, LLC 100 Gulf Publishing Holdings, LLC 100 AAC Holdings, Inc. 71 Inspire Aesthetics Management, LLC 43 Adams Publishing Group, LLC 5 Interface Security Systems, L.L.C 1 Total Loan Commitments $ 60,934 Total Commitments $ 70,798

Consolidated Schedule of Inve_4

Consolidated Schedule of Investments In and Advances to Affiliates (Tables)	12 Months Ended
	Dec. 31, 2023
Investments in and Advances to Affiliates [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 December 31, Control Investments Copper Trail Fund Investments LP Interests (CTMH, LP) (9) $ — $ — $ 38 $ 588 $ — $ 20 $ 568 GRT Rubber Technologies LLC 11.48% SF+ 6.00% Secured Debt (12) (8) — 3 88 330 852 — 1,182 13.48% SF+ 8.00% Secured Debt (8) — (50) 2,696 19,943 51 50 19,944 Member Units (8) — — 90 21,890 — — 21,890 Harris Preston Fund Investments LP Interests (2717 MH, L.P.) (8) 2,223 (952) 142 7,552 2,796 4,298 6,050 Volusion, LLC 10.00% Secured Debt (8) — — 69 — 900 — 900 11.50% Secured Debt (8) (1,366) 780 71 6,392 — 6,392 — 8.00% Unsecured Convertible Debt (8) (175) 175 — — 175 175 — Preferred Member Units (8) — — 1 — — — — Preferred Member Units (8) — (596) — — 4,906 1,796 3,110 Preferred Member Units (8) — — — — — — — Common Stock (8) — (1,104) — — 1,104 1,104 — Warrants (8) — 1,104 — — — — — Other 1,541 (649) (94) (6,392) 6,392 — — Total Control Investments $ 2,223 $ (1,289) $ 3,101 $ 50,303 $ 17,176 $ 13,835 $ 53,644 Affiliate Investments AFG Capital Group, LLC Preferred Member Units (8) $ 1,800 $ (2,050) $ — $ 2,350 $ 1,800 $ 4,150 $ — Analytical Systems Keco Holdings, LLC 15.38% SF+ 10.00% Secured Debt (12) (8) — — 4 (2) 56 — 54 15.38% SF+ 10.00% Secured Debt (8) — — 188 1,135 21 136 1,020 14.13% Preferred Member Units (8) — — — — — — — Preferred Member Units (8) — 330 — 880 330 — 1,210 Warrants (8) — — — — — — — ATX Networks Corp. L+ 7.50% Secured Debt (6) — (102) 856 6,368 545 6,913 — 10.00% Unsecured Debt (6) — (276) 1,135 2,614 1,135 3,749 — Common Stock (6) 3,178 (3,290) — 3,290 3,178 6,468 — Barfly Ventures, LLC Member Units (5) — 273 — 1,107 273 — 1,380 Batjer TopCo, LLC 10.00% Secured Debt (12) (8) — 1 — (1) 1 — — 10.00% Secured Debt (12) (8) — — 2 — 70 40 30 10.00% Secured Debt (8) — 15 129 1,205 21 51 1,175 Preferred Stock (8) — 225 76 455 225 — 680 Brewer Crane Holdings, LLC 15.46% L+ 10.00% Secured Debt (9) — — 224 1,491 8 125 1,374 Preferred Member Units (9) — (370) 30 1,770 — 370 1,400 Centre Technologies Holdings, LLC SF+ 9.00% Secured Debt (12) (8) — — 3 — — — — 14.48% SF+ 9.00% Secured Debt (8) — 29 572 3,731 663 — 4,394 Preferred Member Units (8) — 590 30 2,170 590 — 2,760 Chamberlin Holding LLC SF+ 6.00% Secured Debt (12) (8) — 49 11 — — — — 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 December 31, 13.49% SF+ 8.00% Secured Debt (8) — (4) 553 4,236 4 335 3,905 Member Units (8) — 1,599 1,045 5,728 1,602 — 7,330 Member Units (8) — 37 23 678 38 1 715 Charps, LLC Preferred Member Units (5) — 590 366 3,330 590 — 3,920 Clad-Rex Steel, LLC 11.50% Secured Debt (12) (5) — — — — — — — 11.50% Secured Debt (5) — (37) 284 2,620 — 517 2,103 10.00% Secured Debt (5) — — 26 260 — 9 251 Member Units (5) — (760) 69 2,060 — 760 1,300 Member Units (5) — 55 — 152 130 — 282 Cody Pools, Inc. 12.50% Secured Debt (12) (8) — 2 1 — — — — 12.50% Secured Debt (8) — 22 562 — 7,872 761 7,111 L+ 10.50% Secured Debt (8) — (11) 26 273 14 287 — L+ 10.50% Secured Debt (8) — (96) 500 6,882 — 6,882 — Preferred Member Units (8) — 3,570 1,219 14,550 3,570 — 18,120 Colonial Electric Company LLC Secured Debt (6) — — 12 — 400 400 — 12.00% Secured Debt (6) — (41) 471 5,729 34 356 5,407 Preferred Member Units (6) — 360 — — 600 — 600 Preferred Member Units (6) — (370) — 2,290 — 370 1,920 Compass Systems & Sales, LLC 13.50% Secured Debt (5) — — — — — — — 13.50% Secured Debt (5) — — 69 — 4,175 — 4,175 Preferred Equity (5) — — — — 1,863 — 1,863 Datacom, LLC 7.50% Secured Debt (8) — — 4 25 89 65 49 10.00% Secured Debt (8) — (14) 107 865 22 43 844 Preferred Member Units (8) — (290) — 300 — 290 10 Digital Products Holdings LLC 15.38% SF+ 10.00% Secured Debt (5) — (17) 586 3,878 — 205 3,673 Preferred Member Units (5) — — 50 2,459 — — 2,459 Direct Marketing Solutions, Inc. 14.00% Secured Debt (9) — (2) 13 — 227 10 217 14.00% Secured Debt (9) — (19) 730 5,352 19 369 5,002 Preferred Stock (9) — (380) 43 5,558 — 378 5,180 Flame King Holdings, LLC L+ 6.50% Secured Debt (9) — (15) 121 1,900 15 1,915 — L+ 9.00% Secured Debt (9) — (123) 478 5,300 123 5,423 — Preferred Equity (9) — 2,570 814 4,400 2,570 — 6,970 Freeport Financial Funds LP Interests (Freeport First Lien Loan Fund III LP) (12) (5) — — 598 5,848 — 2,143 3,705 Gamber-Johnson Holdings, LLC SF+ 7.50% Secured Debt (12) (5) — — 2 — — — — 10.50% SF+ 7.50% Secured Debt (5) — (88) 1,727 16,020 88 2,588 13,520 Member Units (5) — 11,460 1,491 12,720 11,460 — 24,180 GFG Group, LLC 8.00% Secured Debt (5) — (25) 263 2,836 25 525 2,336 Preferred Member Units (5) — 1,080 200 1,790 1,080 — 2,870 Gulf Publishing Holdings, LLC SF+ 9.50% Secured Debt (12) (8) — — — — — — — 12.50% Secured Debt (8) — — 73 571 — — 571 Preferred Equity (8) — (330) — 950 — 330 620 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 December 31, HPEP 3, L.P. LP Interests (HPEP 3, L.P.) (12) (8) — 156 4 4,331 403 509 4,225 IG Investor, LLC Secured Debt (12) (6) — — 5 — 173 200 (27) 13.00% Secured Debt (6) — — 692 — 9,179 110 9,069 Common Equity (6) — — — — 3,774 174 3,600 Independent Pet Partners Intermediate Holdings, LLC Common Equity (6) — (220) — — 6,540 220 6,320 Integral Energy Services 13.16% SF+ 7.50% Secured Debt (8) — (787) 2,773 18,425 94 2,287 16,232 10.00% 10.00% Preferred Equity (8) — 85 — — 350 — 350 Common Stock (8) — (1,300) 50 1,490 — 1,300 190 Kickhaefer Manufacturing Company, LLC 12.00% Secured Debt (5) — (18) 668 5,093 58 218 4,933 9.00% Secured Debt (5) — — 86 961 — 10 951 Preferred Equity (5) — 620 — 1,800 620 — 2,420 Member Units (5) — (30) 29 713 — 30 683 Market Force Information, LLC L+ 11.00% Secured Debt (9) (6,465) 6,060 — 403 6,060 6,463 — Member Units (9) (4,160) 4,160 — — 4,160 4,160 — MH Corbin Holding LLC 13.00% Secured Debt (5) — 307 190 1,137 308 189 1,256 Preferred Member Units (5) — 80 — — 80 — 80 Preferred Member Units (5) — — — — — — — Mystic Logistics Holdings, LLC Secured Debt (12) (6) — — 1 — — — — 10.00% Secured Debt (6) — — 146 1,436 — — 1,436 Common Stock (6) — 890 1,131 5,708 890 — 6,598 NexRev LLC 10.00% Secured Debt (12) (8) — — — — — — — 10.00% Secured Debt (8) — 708 289 2,119 729 413 2,435 Preferred Member Units (8) — 1,310 166 280 1,310 — 1,590 NuStep, LLC 11.98% SF+ 6.50% Secured Debt (5) — (2) 120 1,100 1 202 899 12.00% Secured Debt (5) — — 564 4,603 3 — 4,606 Preferred Member Units (5) — 300 — 2,010 300 — 2,310 Preferred Member Units (5) — — — 1,290 — — 1,290 Oneliance, LLC 16.48% SF+ 11.00% Secured Debt (7) — (7) 231 1,380 6 47 1,339 Preferred Stock (7) — — — 264 18 — 282 Orttech Holdings, LLC SF+ 11.00% Secured Debt (12) (5) — 2 1 (2) 2 — — 16.48% SF+ 11.00% Secured Debt (5) — 58 955 5,814 86 390 5,510 Preferred Stock (5) — 1,320 274 2,940 1,320 — 4,260 Pinnacle TopCo, LLC 8.00% Secured Debt (12) (8) — — 1 — 105 — 105 13.00% Secured Debt (8) — — 34 — 7,472 — 7,472 Preferred Equity (8) — — — — 3,135 — 3,135 Robbins Bros. Jewelry, Inc. 12.50% Secured Debt (9) — — 4 (8) 2 — (6) 12.50% Secured Debt (9) — (323) 507 3,902 18 499 3,421 Preferred Equity (9) — (1,650) — 1,650 — 1,650 — SI East, LLC 11.25% Secured Debt (12) (7) — 6 28 — 625 250 375 12.47% Secured Debt (7) — 161 1,278 — 18,179 — 18,179 9.50% Secured Debt (7) — (134) 1,403 29,929 — 29,929 — Preferred Member Units (7) — 1,737 399 4,550 1,840 — 6,390 Student Resource Center, LLC 8.50% 8.50% Secured Debt (6) — (1,881) 364 5,063 244 1,764 3,543 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 December 31, Preferred Equity (6) — — — — — — — Tedder Industries, LLC 12.00% Secured Debt (9) — (28) 56 460 — 28 432 12.00% Secured Debt (9) — (218) 466 3,780 3 218 3,565 Preferred Member Units (9) — (1,920) — 1,920 — 1,920 — Preferred Member Units (9) — (141) — — 124 124 — Preferred Member Units (9) — (165) — — 165 165 — Trantech Radiator Topco, LLC 8.00% Secured Debt (12) (7) — (2) 3 — 2 2 — 12.00% Secured Debt (7) — (14) 255 1,980 14 14 1,980 Common Stock (7) — 1,230 29 1,950 1,230 — 3,180 VVS Holdco LLC SF+ 6.00% Secured Debt (12) (5) — — 10 (5) 5 — — 11.50% Secured Debt (5) — — 904 7,421 55 550 6,926 Preferred Equity (5) — (30) 54 2,990 100 30 3,060 Other (1,541) 649 (151) — — — — Total Affiliate investments $ (7,188) $ 25,116 $ 29,805 $ 277,000 $ 115,308 $ 101,029 $ 291,279 ___________________________________________________ (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 8. Consolidated Financial Statements of this Annual Report on Form 10-K. (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 to or 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 December 31, 2023 for affiliate investments located in this region was $107,201. This represented 17.2% of net assets as of December 31, 2023. (6) Portfolio company located in the Northeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2023 for affiliate investments located in this region was $38,466. This represented 6.2% of net assets as of December 31, 2023. (7) Portfolio company located in the Southeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2023 for affiliate investments located in this region was $31,725. This represented 5.1% of net assets as of December 31, 2023. (8) Portfolio company located in the Southwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2023 for control investments located in this region was $53,076. This represented 8.5% of net assets as of December 31, 2023. The fair value as of December 31, 2023 for affiliate investments located in this region was $86,332. This represented 13.9% of net assets as of December 31, 2023. (9) Portfolio company located in the West region as determined by location of the corporate headquarters. The fair value as of December 31, 2023 for control investments located in this region was $568. This represented 0.1% of net assets as of December 31, 2023. The fair value as of December 31, 2023 for affiliate investments located in this region was $27,555. This represented 4.4% of net assets as of December 31, 2023. (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 8. Consolidated Financial Statements of this Annual Report on Form 10-K. 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 December 31, 2023 (see Note J — Commitments and Contingencies in Item 8. Consolidated Financial Statements of this Annual Report on Form 10-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 December 31, Control Investments GRT Rubber Technologies LLC 10.12% L+ 6.00% Secured Debt (8) $ — $ 6 $ 7 $ — $ 330 $ — $ 330 12.12% L+ 8.00% Secured Debt (8) — (32) 1,972 19,152 824 33 19,943 Member Units (8) — (860) 1,244 22,750 — 860 21,890 Harris Preston Fund Investments LP Interests (2717 MH, L.P.) (8) — 2,389 — 3,971 3,581 — 7,552 Copper Trail Fund Investments LP Interests (CTMH, LP) (9) — — — 710 — 122 588 Other — — — — — — — Total Control Investments $ — $ 1,503 $ 3,223 $ 46,583 $ 4,735 $ 1,015 $ 50,303 Affiliate Investments AFG Capital Group, LLC 10.00% Secured Debt (8) $ — $ — $ 1 $ 36 $ — $ 36 $ — Preferred Member Units (8) — 420 50 1,930 420 — 2,350 Analytical Systems Keco Holdings, LLC L+ 10.00% Secured Debt (8) — — 2 (4) 2 — (2) 14.13% L+ 10.00% Secured Debt (8) — — 174 1,182 23 70 1,135 14.13% Preferred Member Units (8) — — — — — — — Preferred Member Units (8) — (340) — 1,220 — 340 880 Warrants (8) — — — — — — — ATX Networks Corp. 12.23% L+ 7.50% Secured Debt (6) — 135 756 7,121 364 1,117 6,368 10.00% 10.00% Unsecured Debt (6) — 309 327 1,977 637 — 2,614 Common Stock (6) — 3,290 — — 3,290 — 3,290 Barfly Ventures, LLC Member Units (5) — 463 — 643 464 — 1,107 Batjer TopCo, LLC Secured Debt (8) — — — — 50 51 (1) 11.00% Secured Debt (8) — — 116 — 1,205 — 1,205 Preferred Stock (8) — — 70 — 455 — 455 Brewer Crane Holdings, LLC 14.12% L+ 10.00% Secured Debt (9) — — 220 2,005 10 524 1,491 Preferred Member Units (9) — (160) 207 1,930 — 160 1,770 Centre Technologies Holdings, LLC L+ 9.00% Secured Debt (8) — — 7 — 360 360 — 13.13% L+ 9.00% Secured Debt (8) — 115 445 2,216 1,612 97 3,731 Preferred Member Units (8) — 639 30 1,460 710 — 2,170 Chamberlin Holding LLC L+ 6.00% Secured Debt (8) — — 2 — — — — 12.13% L+ 8.00% Secured Debt (8) — (42) 486 4,454 42 260 4,236 Member Units (8) — (300) 463 6,030 — 302 5,728 Member Units (8) — 180 19 385 293 — 678 Charps, LLC Preferred Member Units (5) — (170) 190 3,500 — 170 3,330 Clad-Rex Steel, LLC SF+ 9.00% Secured Debt (5) — — 1 — — — — 13.23% SF+ 9.00% Secured Debt (5) — — 304 2,620 — — 2,620 10.00% Secured Debt (5) — — 27 268 — 8 260 Member Units (5) — (500) 190 2,560 — 500 2,060 Member Units (5) — 20 — 133 19 — 152 Cody Pools, Inc. 15.38% L+ 10.50% Secured Debt (8) — 11 20 (6) 1,033 754 273 15.38% L+ 10.50% Secured Debt (8) — (30) 963 7,187 30 335 6,882 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 December 31, Preferred Member Units (8) — 2,640 1,004 11,910 2,640 — 14,550 Colonial Electric Company LLC Secured Debt (6) — — 12 — 400 400 — 12.00% Secured Debt (6) — — 761 6,007 37 315 5,729 Preferred Member Units (6) — 10 349 2,280 10 — 2,290 Datacom, LLC 7.50% Secured Debt (8) — — — — 25 — 25 7.50% Secured Debt (8) — 20 98 852 43 30 865 Preferred Member Units (8) — 10 11 290 10 — 300 Digital Products Holdings LLC 14.13% L+ 10.00% Secured Debt (5) — — 510 4,186 22 330 3,878 Preferred Member Units (5) — — 50 2,459 — — 2,459 Direct Marketing Solutions, Inc. L+ 11.00% Secured Debt (9) — 5 42 (7) 757 750 — 15.13% L+ 11.00% Secured Debt (9) — 46 — — 5,352 — 5,352 L+ 11.00% Secured Debt (9) — (54) 661 4,705 — 4,705 — Preferred Stock (9) — 970 343 4,590 968 — 5,558 Flame King Holdings, LLC 10.75% L+ 6.50% Secured Debt (9) — 15 167 1,581 319 — 1,900 13.25% L+ 9.00% Secured Debt (9) — 123 706 5,145 155 — 5,300 Preferred Equity (9) — 1,800 538 2,600 1,800 — 4,400 Freeport Financial Funds LP Interests (Freeport First Lien Loan Fund III LP) (5) — (57) 421 7,231 — 1,383 5,848 Gamber-Johnson Holdings, LLC SF+ 8.50% Secured Debt (5) — — 2 — — — — 11.50% SF+ 8.50% Secured Debt (5) — 272 113 — 16,020 — 16,020 L+ 7.50% Secured Debt (5) — (17) 559 5,400 — 5,400 — Member Units (5) — 290 224 12,430 290 — 12,720 GFG Group, LLC 9.00% Secured Debt (5) — (26) 329 3,136 26 326 2,836 Preferred Member Units (5) — 40 144 1,750 40 — 1,790 Gulf Publishing Holdings, LLC L+ 9.50% Secured Debt (8) — — 2 64 — 64 — 6.25% Secured Debt (8) (1,455) 962 126 2,429 — 2,429 — 12.50% Secured Debt (8) — (29) 19 — 600 29 571 Member Units (8) — — — — — — — Preferred Equity (8) — (450) — — 1,400 450 950 HPEP 3, L.P. LP Interests (HPEP 3, L.P.) (8) 779 254 (50) 4,712 587 968 4,331 Kickhaefer Manufacturing Company, LLC 11.50% Secured Debt (5) — 18 630 5,040 53 — 5,093 9.00% Secured Debt (5) — — 88 970 — 9 961 Preferred Equity (5) — (1,280) — 3,080 — 1,280 1,800 Member Units (5) — 98 28 615 99 1 713 Market Force Information, LLC 12.00% 12.00% Secured Debt (9) — (1,831) — 2,234 — 1,831 403 Member Units (9) — — — — — — — MH Corbin Holding LLC 13.00% Secured Debt (5) — 175 250 1,484 177 524 1,137 Preferred Member Units (5) — — — — — — — Preferred Member Units (5) — — — — — — — Mystic Logistics Holdings, LLC Secured Debt (6) — — 1 — — — — 10.00% Secured Debt (6) — — 152 1,595 — 159 1,436 Common Stock (6) — 3,500 1,050 2,210 3,498 — 5,708 NexRev LLC Secured Debt (8) — — 7 199 — 199 — 11.00% Secured Debt (8) — (188) 486 3,311 — 1,192 2,119 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 December 31, Preferred Member Units (8) — (723) 20 670 333 723 280 NuStep, LLC 10.63% L+ 6.50% Secured Debt (5) — 2 78 430 670 — 1,100 12.00% Secured Debt (5) — (1) 545 4,310 294 1 4,603 Preferred Member Units (5) — (1,370) — 3,380 — 1,370 2,010 Preferred Member Units (5) — 775 — — 1,290 — 1,290 Oneliance, LLC 15.13% L+ 11.00% Secured Debt (7) — — 190 1,374 6 — 1,380 Preferred Stock (7) — — 1 264 — — 264 Orttech Holdings, LLC L+ 11.00% Secured Debt (5) — — 5 41 1 44 (2) 15.13% L+ 11.00% Secured Debt (5) — — 815 5,937 27 150 5,814 Preferred Stock (5) — 440 225 2,500 440 — 2,940 Robbins Bros. Jewelry, Inc. Secured Debt (9) — — 5 — 2 10 (8) 12.50% Secured Debt (9) — — 529 — 3,977 75 3,902 Preferred Equity (9) — 420 62 — 1,650 — 1,650 SI East, LLC Secured Debt (7) — — 78 750 1,250 2,000 — 9.50% Secured Debt (7) — 76 2,708 21,200 10,375 1,646 29,929 Preferred Member Units (7) — 690 216 3,860 690 — 4,550 Sonic Systems International, LLC 11.24% L+ 7.50% Secured Debt (8) — 282 1,676 13,738 4,687 — 18,425 Common Stock (8) — (94) 50 1,250 334 94 1,490 Student Resource Center, LLC 13.27% L+ 8.50% Secured Debt (6) — — — — 5,063 — 5,063 Secured Debt (6) (6,651) 4,438 12 — 6,524 6,524 — Preferred Equity (6) — — — — — — — Tedder Industries, LLC 12.00% Secured Debt (9) — — 55 259 201 — 460 12.00% Secured Debt (9) — (17) 505 3,754 43 17 3,780 Preferred Member Units (9) — (391) — 2,145 166 391 1,920 Trantech Radiator Topco, LLC Secured Debt (7) — 3 3 (6) 6 — — 12.00% Secured Debt (7) — (17) 273 2,180 17 217 1,980 Common Stock (7) — (210) 29 2,160 — 210 1,950 VVS Holdco LLC L+ 6.00% Secured Debt (5) — — 13 292 203 500 (5) 11.50% Secured Debt (5) — — 932 7,375 46 — 7,421 Preferred Equity (5) — 30 129 2,960 30 — 2,990 Other — — — — — — — Total Affiliate investments $ (7,327) $ 15,689 $ 24,057 $ 234,158 $ 84,672 $ 41,830 $ 277,000 ___________________________________________________ (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 8. Consolidated Financial Statements of this Annual Report on Form 10-K. (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 to or 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 December 31, 2022 for affiliate investments located in this region was $92,945. This represented 15.2% of net assets as of December 31, 2022. (6) Portfolio company located in the Northeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2022 for affiliate investments located in this region was $32,498. This represented 5.3% of net assets as of December 31, 2022. (7) Portfolio company located in the Southeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2022 for affiliate investments located in this region was $40,053. This represented 6.6% of net assets as of December 31, 2022. (8) Portfolio company located in the Southwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2022 for control investments located in this region was $49,715. This represented 8.2% of net assets as of December 31, 2022. The fair value as of December 31, 2022 for affiliate investments located in this region was $73,626. This represented 12.1% of net assets as of December 31, 2022. (9) Portfolio company located in the West region as determined by location of the corporate headquarters. The fair value as of December 31, 2022 for control investments located in this region was $588. This represented 0.1% of net assets as of December 31, 2022. The fair value as of December 31, 2022 for affiliate investments located in this region was $37,878. This represented 6.2% of net assets as of December 31, 2022. (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 8. Consolidated Financial Statements of this Annual Report on Form 10-K. 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 December 31, 2022 (see Note J — Commitments and Contingencies in Item 8. Consolidated Financial Statements of this Annual Report on Form 10-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.

SUMMARY OF SIGNIFICANT ACCOUN_4

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) company	Dec. 31, 2022 USD ($) company	Dec. 31, 2021
Schedule of Investments [Line Items]
Cash equivalents | $	$ 20.8
Cash balances exceeded Federal Deposit Insurance Corporation insurance protection levels | $	$ 9	$ 11.7
Percentage of total investment income, attributable to noncash paid-in-kind interest income	3.80%	2.50%	2.30%
Percentage of total investment come, attributable to noncash cumulative dividend income	0.10%	0.60%	0.30%
Percentage of total investment income, attributable to interest income, debt investments, net	2.50%	2.50%	5.70%
Investment Owned, At Fair Value | Investment Type Concentration Risk
Schedule of Investments [Line Items]
Concentration risk, percentage	100%	100%
Investment Owned, At Fair Value | Investment Type Concentration Risk | Nonperforming Financial Instruments
Schedule of Investments [Line Items]
Concentration risk, percentage	1.10%	0.80%
Investment Owned, At Cost | Investment Type Concentration Risk
Schedule of Investments [Line Items]
Concentration risk, percentage	100%	100%
Investment Owned, At Cost | Investment Type Concentration Risk | Nonperforming Financial Instruments
Schedule of Investments [Line Items]
Concentration risk, percentage	4%	4.80%
Private Loan portfolio investments
Schedule of Investments [Line Items]
Consultation period subsequent to initial investment	12 months
Investment company, number of portfolio companies with annual third-party appraisal was obtained, reviewed and certified | company	55	51
Percentage of portfolio with annual third-party appraisal was obtained, reviewed and certified	90%	94%
Private Loan portfolio investments | Investment Owned, At Fair Value | Investment Type Concentration Risk
Schedule of Investments [Line Items]
Concentration risk, percentage	79%	83%
LMM portfolio investments
Schedule of Investments [Line Items]
Consultation period subsequent to initial investment	12 months
Investment company, number of portfolio companies with annual third-party appraisal was obtained, reviewed and certified | company	46	44
Percentage of portfolio with annual third-party appraisal was obtained, reviewed and certified	99%	99%
LMM portfolio investments | Investment Owned, At Fair Value | Investment Type Concentration Risk
Schedule of Investments [Line Items]
Concentration risk, percentage	95%	97%
Middle Market portfolio investments
Schedule of Investments [Line Items]
Percentage of portfolio investments containing limited consultation with financial advisory services firm	97%	91%
Other Portfolio investments | Investment Owned, At Fair Value | Investment Type Concentration Risk
Schedule of Investments [Line Items]
Concentration risk, percentage	2.30%	2.70%
Other Portfolio investments | Investment Owned, At Cost | Investment Type Concentration Risk
Schedule of Investments [Line Items]
Concentration risk, percentage	2.10%	2.30%

SUMMARY OF SIGNIFICANT ACCOUN_5

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Investment Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounting Policies [Abstract]
Interest income	$ 116,976	$ 90,811	$ 72,536
Dividend income	11,255	9,442	15,880
Fee income	3,155	3,512	1,712
Total interest, fee and dividend income	$ 131,386	$ 103,765	$ 90,128

FAIR VALUE HIERARCHY FOR INVE_3

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Schedule of Fair Value Measurement Inputs and Valuation Techniques (Details) $ in Thousands	Dec. 31, 2023 USD ($)		Dec. 31, 2022 USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Level 3 investments	$ 1,092,895	[1]	$ 1,068,143	[2]
Significant Unobservable Inputs
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Level 3 investments	$ 1,092,895		$ 1,068,143
Significant Unobservable Inputs | Minimum | EBITDA multiple, outlier
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	2		2
Significant Unobservable Inputs | Minimum | Risk adjusted discount factor, outlier
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.080		0.065
Significant Unobservable Inputs | Maximum | EBITDA multiple, outlier
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	15.7		15.7
Significant Unobservable Inputs | Maximum | Risk adjusted discount factor, outlier
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.273		0.433
Significant Unobservable Inputs | Equity investments | Discounted cash flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Level 3 investments	$ 254,770		$ 215,861
Significant Unobservable Inputs | Equity investments | Discounted cash flow | Minimum | WACC
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.109		0.104
Significant Unobservable Inputs | Equity investments | Discounted cash flow | Maximum | WACC
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.225		0.225
Significant Unobservable Inputs | Equity investments | Discounted cash flow | Weighted Average | WACC
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.144		0.143
Significant Unobservable Inputs | Equity investments | Discounted cash flow | Median | WACC
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.155		0.157
Significant Unobservable Inputs | Equity investments | Market comparable / Enterprise value | Minimum | EBITDA multiple
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	4.9		4.3
Significant Unobservable Inputs | Equity investments | Market comparable / Enterprise value | Maximum | EBITDA multiple
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	9.2		8.5
Significant Unobservable Inputs | Equity investments | Market comparable / Enterprise value | Weighted Average | EBITDA multiple
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	7.3		7.2
Significant Unobservable Inputs | Equity investments | Market comparable / Enterprise value | Median | EBITDA multiple
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	6.5		6.4
Significant Unobservable Inputs | Debt investments | Discounted cash flow
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Level 3 investments	$ 777,003		$ 743,887
Significant Unobservable Inputs | Debt investments | Discounted cash flow | Minimum | Risk adjusted discount factor
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.098		0.085
Significant Unobservable Inputs | Debt investments | Discounted cash flow | Minimum | Expected principal recovery percentage
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.006		0.007
Significant Unobservable Inputs | Debt investments | Discounted cash flow | Maximum | Risk adjusted discount factor
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.168		0.182
Significant Unobservable Inputs | Debt investments | Discounted cash flow | Maximum | Expected principal recovery percentage
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	1		1
Significant Unobservable Inputs | Debt investments | Discounted cash flow | Weighted Average | Risk adjusted discount factor
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.131		0.130
Significant Unobservable Inputs | Debt investments | Discounted cash flow | Weighted Average | Expected principal recovery percentage
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.996		0.991
Significant Unobservable Inputs | Debt investments | Discounted cash flow | Median | Risk adjusted discount factor
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.128		0.124
Significant Unobservable Inputs | Debt investments | Discounted cash flow | Median | Expected principal recovery percentage
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	1		1
Significant Unobservable Inputs | Debt investments | Market approach
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Level 3 investments	$ 61,122		$ 108,395
Significant Unobservable Inputs | Debt investments | Market approach | Minimum | Third-party quote
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	4.5		5.6
Significant Unobservable Inputs | Debt investments | Market approach | Maximum | Third-party quote
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	99.2		98.5
Significant Unobservable Inputs | Debt investments | Market approach | Weighted Average | Third-party quote
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	85		85.7
Significant Unobservable Inputs | Debt investments | Market approach | Median | Third-party quote
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	89.5		90
[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_4

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Schedule of Level 3 Portfolio Investments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 1,068,143	$ 1,077,136
Transfers Into Level 3 Hierarchy	0	0
Redemptions/ Repayments	(269,130)	(227,760)
New Investments	247,563	220,470
Other	0	0
Ending balance	1,092,895	1,068,143
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	34,285	3,303
Investments | Net Unrealized Appreciation (Depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Gain (loss) included in earnings	12,034	(5,006)
Debt investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	852,282	879,970
Transfers Into Level 3 Hierarchy	0	0
Redemptions/ Repayments	(253,517)	(205,481)
New Investments	230,663	211,631
Other	(18,914)	(1,736)
Ending balance	838,125	852,282
Debt 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	33,078	10,645
Debt investments | Net Unrealized Appreciation (Depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Gain (loss) included in earnings	(5,467)	(42,747)
Equity investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	214,687	196,374
Transfers Into Level 3 Hierarchy	0	0
Redemptions/ Repayments	(15,329)	(22,234)
New Investments	16,377	7,728
Other	20,019	1,736
Ending balance	254,029	214,687
Equity 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	923	(7,037)
Equity investments | Net Unrealized Appreciation (Depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Gain (loss) included in earnings	17,352	38,120
Equity Warrant
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	1,174	792
Transfers Into Level 3 Hierarchy	0	0
Redemptions/ Repayments	(284)	(45)
New Investments	523	1,111
Other	(1,105)	0
Ending balance	741	1,174
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	284	(305)
Equity Warrant | Net Unrealized Appreciation (Depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Gain (loss) included in earnings	$ 149	$ (379)

FAIR VALUE HIERARCHY FOR INVE_5

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Schedule of Investments at Fair Value Hierarchy (Details) - USD ($) $ in Thousands	Dec. 31, 2023		Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	$ 1,092,895	[1]	$ 1,068,143	[2]
Private Loan portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	595,326		559,763
LMM portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	386,956		352,661
Middle Market portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	85,990		126,744
Other Portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	24,623		28,975
Quoted Prices in Active Markets for Identical Assets (Level 1)
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) | 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) | 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) | 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) | 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, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	0		0
Significant Other Observable Inputs (Level 2) | 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) | 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) | 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) | Other Portfolio investments
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:	1,092,895		1,068,143
Significant Unobservable Inputs (Level 3) | Private Loan portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	595,326		559,763
Significant Unobservable Inputs (Level 3) | LMM portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	386,956		352,661
Significant Unobservable Inputs (Level 3) | Middle Market portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	85,990		126,744
Significant Unobservable Inputs (Level 3) | Other Portfolio investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value:	$ 24,623		$ 28,975
[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_6

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) company entity		Dec. 31, 2022 USD ($) entity company
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Achieved total return on investments	0.136		0.091
Fair value	$ 1,092,895	[1]	$ 1,068,143	[2]
Cost	$ 1,038,318	[3]	$ 1,059,886	[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, percentage	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, percentage	100%		100%
Private Loan portfolio investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of portfolio companies | company	78		70
Fair value	$ 595,300		$ 559,800
Cost	$ 586,400		$ 563,000
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, percentage	79%		83%
Private Loan portfolio investments | Debt investments | Investment Owned, At Cost | Investment Type Concentration Risk
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Concentration risk, percentage	94.10%		96.20%
Private Loan portfolio investments | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, made	$ 1,000
Private Loan portfolio investments | Minimum | Debt investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment, term	3 years
Private Loan portfolio investments | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, made	$ 20,000
Private Loan portfolio investments | Maximum | Debt investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment, term	7 years
LMM portfolio investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of portfolio companies | company	50		48
Fair value	$ 387,000		$ 352,700
Cost	$ 315,700		$ 312,500
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, percentage	95%		97%
LMM portfolio investments | Debt investments | Investment Owned, At Cost | Investment Type Concentration Risk
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Concentration risk, percentage	70.20%		73.20%
LMM portfolio investments | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, made	$ 1,000
Investments, annual revenues per company	$ 10,000
LMM portfolio investments | Minimum | Debt investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment, term	5 years
LMM portfolio investments | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, made			$ 20,000
Investments, annual revenues per company			$ 150,000
LMM portfolio investments | Maximum | Debt investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment, term	7 years
Middle Market portfolio investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of portfolio companies | company	16		21
Fair value	$ 86,000		$ 126,700
Cost	$ 114,700		$ 159,700
Middle Market portfolio investments | Debt investments | Investment Owned, At Cost | Investment Type Concentration Risk
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Concentration risk, percentage	93.10%		95%
Middle Market portfolio investments | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, made	$ 1,000
Investments, annual revenues per company	$ 150,000
Middle Market portfolio investments | Minimum | Debt investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment, term	3 years
Middle Market portfolio investments | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, made	$ 20,000
Investments, annual revenues per company	$ 1,500,000
Middle Market portfolio investments | Maximum | Debt investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment, term	7 years
Other Portfolio investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of portfolio companies | entity	4		4
Fair value	$ 24,600		$ 29,000
Cost	$ 21,500		$ 24,700
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, percentage	2.30%		2.70%
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, percentage	2.10%		2.30%
Other Portfolio investments | Minimum | Debt investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment, term	5 years
Other Portfolio investments | Maximum | Debt investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment, term	10 years
[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.

FAIR VALUE HIERARCHY FOR INVE_7

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Schedule of Investments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) company		Dec. 31, 2022 USD ($) company
Summary of Investment Holdings [Line Items]
Fair value	$ 1,092,895	[1]	$ 1,068,143	[2]
Cost	$ 1,038,318	[3]	$ 1,059,886	[4]
Investment Owned, At Cost | Investment Type Concentration Risk
Summary of Investment Holdings [Line Items]
Concentration risk, percentage	100%		100%
Investment Owned, At Cost | Investment Type Concentration Risk | Nonperforming Financial Instruments
Summary of Investment Holdings [Line Items]
Concentration risk, percentage	4%		4.80%
Investment Owned, At Cost | Investment Type Concentration Risk | Equity investments
Summary of Investment Holdings [Line Items]
Concentration risk, percentage	13.30%		10.80%
Investment Owned, At Cost | Investment Type Concentration Risk | First lien debt
Summary of Investment Holdings [Line Items]
Concentration risk, percentage	86.50%		88.50%
Private Loan portfolio investments
Summary of Investment Holdings [Line Items]
Number of portfolio companies | company	78		70
Fair value	$ 595,300		$ 559,800
Cost	$ 586,400		$ 563,000
Weighted-average annual effective yield	13.10%		11.80%
Average EBITDA	$ 30,500		$ 36,800
Investment company, number of companies within portfolio excluded from EBITDA calculation | company	1		1
Private Loan portfolio investments | Nonperforming Financial Instruments
Summary of Investment Holdings [Line Items]
Weighted-average annual effective yield	12.60%		11.40%
Private Loan portfolio investments | Investment Owned, At Cost | Investment Type Concentration Risk | Debt investments
Summary of Investment Holdings [Line Items]
Concentration risk, percentage	94.10%		96.20%
Private Loan portfolio investments | Investment Owned, At Cost | Investment Type Concentration Risk | Equity investments
Summary of Investment Holdings [Line Items]
Concentration risk, percentage	5.90%		3.80%
Private Loan portfolio investments | Investment Owned, At Cost | Investment Type Concentration Risk | First lien debt
Summary of Investment Holdings [Line Items]
Concentration risk, percentage	100%		99.40%
LMM portfolio investments
Summary of Investment Holdings [Line Items]
Number of portfolio companies | company	50		48
Fair value	$ 387,000		$ 352,700
Cost	$ 315,700		$ 312,500
Weighted-average annual effective yield	13%		12.10%
Average EBITDA	$ 8,800		$ 8,600
Diluted equity ownership percentage	9%		9%
LMM portfolio investments | Nonperforming Financial Instruments
Summary of Investment Holdings [Line Items]
Weighted-average annual effective yield	13%		11.70%
LMM portfolio investments | Investment Owned, At Cost | Investment Type Concentration Risk | Debt investments
Summary of Investment Holdings [Line Items]
Concentration risk, percentage	70.20%		73.20%
LMM portfolio investments | Investment Owned, At Cost | Investment Type Concentration Risk | Equity investments
Summary of Investment Holdings [Line Items]
Concentration risk, percentage	29.80%		26.80%
LMM portfolio investments | Investment Owned, At Cost | Investment Type Concentration Risk | First lien debt
Summary of Investment Holdings [Line Items]
Concentration risk, percentage	99.90%		99.90%
Middle Market portfolio investments
Summary of Investment Holdings [Line Items]
Number of portfolio companies | company	16		21
Fair value	$ 86,000		$ 126,700
Cost	$ 114,700		$ 159,700
Weighted-average annual effective yield	13%		11.30%
Average EBITDA	$ 74,200		$ 79,200
Middle Market portfolio investments | Nonperforming Financial Instruments
Summary of Investment Holdings [Line Items]
Weighted-average annual effective yield	9.90%		9.70%
Middle Market portfolio investments | Investment Owned, At Cost | Investment Type Concentration Risk | Debt investments
Summary of Investment Holdings [Line Items]
Concentration risk, percentage	93.10%		95%
Middle Market portfolio investments | Investment Owned, At Cost | Investment Type Concentration Risk | Equity investments
Summary of Investment Holdings [Line Items]
Concentration risk, percentage	6.90%		5%
Middle Market portfolio investments | Investment Owned, At Cost | Investment Type Concentration Risk | First lien debt
Summary of Investment Holdings [Line Items]
Concentration risk, percentage	100%		98.50%
[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.

FAIR VALUE HIERARCHY FOR INVE_8

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Percentage of Portfolio Investments by Type of Investment (Details) - Investment Type Concentration Risk	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Investment Owned, At Cost
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	100%	100%
Investment Owned, At Cost | First lien debt
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	86.50%	88.50%
Investment Owned, At Cost | Equity
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	13.30%	10.80%
Investment Owned, At Cost | Second lien debt
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	0%	0.30%
Investment Owned, At Cost | Equity warrants
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	0.20%	0.20%
Investment Owned, At Cost | Other
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	0%	0.20%
Investment Owned, At Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	100%	100%
Investment Owned, At Fair Value | First lien debt
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	78.40%	81.40%
Investment Owned, At Fair Value | Equity
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	21.50%	17.90%
Investment Owned, At Fair Value | Second lien debt
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	0%	0.30%
Investment Owned, At Fair Value | Equity warrants
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	0.10%	0.10%
Investment Owned, At Fair Value | Other
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	0%	0.30%

FAIR VALUE HIERARCHY FOR INVE_9

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Percentage of Portfolio Investments by Geographical Regions (Details) - Geographic Concentration Risk	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Investment Owned, At Cost
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	100%	100%
Investment Owned, At Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	100%	100%
Southwest | Investment Owned, At Cost
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	23.80%	22.20%
Southwest | Investment Owned, At Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	26.80%	25.30%
Northeast | Investment Owned, At Cost
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	21.90%	20.30%
Northeast | Investment Owned, At Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	21.60%	20.30%
Southeast | Investment Owned, At Cost
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	17.80%	17.80%
Southeast | Investment Owned, At Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	15%	15.20%
Midwest | Investment Owned, At Cost
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	17.60%	15.10%
Midwest | Investment Owned, At Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	18.30%	15.90%
West | Investment Owned, At Cost
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	17%	22.90%
West | Investment Owned, At Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	16.40%	21.10%
Canada | Investment Owned, At Cost
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	0.80%	0.80%
Canada | Investment Owned, At Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	0.80%	1.20%
Other Non-United States | Investment Owned, At Cost
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	1.10%	0.90%
Other Non-United States | Investment Owned, At Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	1.10%	1%

FAIR VALUE HIERARCHY FOR INV_10

FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Percentage of Portfolio Investments by Industry Sector (Details) - Industry Concentration Risk	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Investment Owned, At Cost
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	100%	100%
Investment Owned, At Cost | Internet Software & Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	8.80%	7.80%
Investment Owned, At Cost | Commercial Services & Supplies
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	8.50%	11.30%
Investment Owned, At Cost | Health Care Providers & Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	6.50%	4.90%
Investment Owned, At Cost | Machinery
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	6%	5.90%
Investment Owned, At Cost | Professional Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	5.70%	3.70%
Investment Owned, At Cost | Diversified Consumer Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	5.40%	4.70%
Investment Owned, At Cost | IT Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	5.20%	4.90%
Investment Owned, At Cost | Distributors
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	4.40%	5%
Investment Owned, At Cost | Containers & Packaging
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	4.30%	3.40%
Investment Owned, At Cost | Leisure Equipment & Products
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	3.70%	3.70%
Investment Owned, At Cost | Textiles, Apparel & Luxury Goods
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	3.10%	2%
Investment Owned, At Cost | Computers & Peripherals
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2.90%	1.90%
Investment Owned, At Cost | Specialty Retail
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2.70%	4%
Investment Owned, At Cost | Communications Equipment
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2.70%	3.50%
Investment Owned, At Cost | Aerospace & Defense
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2.60%	3.60%
Investment Owned, At Cost | Media
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2.50%	2.40%
Investment Owned, At Cost | Construction & Engineering
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2.50%	2.50%
Investment Owned, At Cost | Electrical Equipment
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2.20%	1.80%
Investment Owned, At Cost | Building Products
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2.10%	2.40%
Investment Owned, At Cost | Hotels, Restaurants & Leisure
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2.10%	2%
Investment Owned, At Cost | Diversified Financial Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2.10%	1.70%
Investment Owned, At Cost | Household Products
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2%	1.50%
Investment Owned, At Cost | Internet & Catalog Retail
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	1.60%	1.30%
Investment Owned, At Cost | Food & Staples Retailing
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	1.50%	0.90%
Investment Owned, At Cost | Software
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	1.40%	1.30%
Investment Owned, At Cost | Health Care Equipment & Supplies
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	1.30%	1.20%
Investment Owned, At Cost | Food Products
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	0.90%	1.10%
Investment Owned, At Cost | Energy Equipment & Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	0.50%	1.20%
Investment Owned, At Cost | Diversified Telecommunication Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	0.10%	3.40%
Investment Owned, At Cost | Other
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	4.70%	5%
Investment Owned, At Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	100%	100%
Investment Owned, At Fair Value | Internet Software & Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	7.30%	6.70%
Investment Owned, At Fair Value | Commercial Services & Supplies
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	7.30%	10.30%
Investment Owned, At Fair Value | Health Care Providers & Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	6%	4.60%
Investment Owned, At Fair Value | Machinery
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	7.40%	7.50%
Investment Owned, At Fair Value | Professional Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	5.50%	2.80%
Investment Owned, At Fair Value | Diversified Consumer Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	6.50%	5.90%
Investment Owned, At Fair Value | IT Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	5%	4.70%
Investment Owned, At Fair Value | Distributors
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	4.60%	5.50%
Investment Owned, At Fair Value | Containers & Packaging
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	4.60%	3.80%
Investment Owned, At Fair Value | Leisure Equipment & Products
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	3.30%	3.70%
Investment Owned, At Fair Value | Textiles, Apparel & Luxury Goods
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2.90%	2%
Investment Owned, At Fair Value | Computers & Peripherals
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	4.60%	2.80%
Investment Owned, At Fair Value | Specialty Retail
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2.70%	3.10%
Investment Owned, At Fair Value | Communications Equipment
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	1.10%	1.30%
Investment Owned, At Fair Value | Aerospace & Defense
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2.50%	3.50%
Investment Owned, At Fair Value | Media
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2.60%	2.60%
Investment Owned, At Fair Value | Construction & Engineering
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	3.10%	2.90%
Investment Owned, At Fair Value | Electrical Equipment
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2.30%	1.90%
Investment Owned, At Fair Value | Building Products
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	1.90%	2.50%
Investment Owned, At Fair Value | Hotels, Restaurants & Leisure
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	1.60%	1.50%
Investment Owned, At Fair Value | Diversified Financial Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2%	1.80%
Investment Owned, At Fair Value | Household Products
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	1.90%	1.30%
Investment Owned, At Fair Value | Internet & Catalog Retail
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	1.50%	1.90%
Investment Owned, At Fair Value | Food & Staples Retailing
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	1.20%	0.80%
Investment Owned, At Fair Value | Software
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	1.70%	1.70%
Investment Owned, At Fair Value | Energy Equipment & Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	0.30%	1%
Investment Owned, At Fair Value | Diversified Telecommunication Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	0.10%	3.60%
Investment Owned, At Fair Value | Other
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	4.70%	5%
Investment Owned, At Fair Value | Construction Materials
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	2.20%	2.10%
Investment Owned, At Fair Value | Air Freight & Logistics
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Concentration risk, percentage	1.60%	1.20%

INVESTMENT IN SIGNAL PEAK CLO_2

INVESTMENT IN SIGNAL PEAK CLO 7, LTD. (Details) - USD ($) $ in Thousands		12 Months Ended
	Dec. 16, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Interest income		$ 116,976	$ 90,811	$ 72,536
Signal Peak CLO 7, Ltd (Formerly Known As HMS-ORIX SLF LLC, then HMS-ORIX Holdings Merger, then Mariner CLO, then Signal Peak CLO 7, Ltd.)
Schedule of Equity Method Investments [Line Items]
Proceeds from sale of investments	$ 17,400
Realized loss on sale	$ 3,700
Interest income				$ 2,200

DEBT - Schedule of Debt (Detail

DEBT - Schedule of Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Outstanding Balance	$ 485,688	$ 471,688
Unamortized Debt Issuance Costs	(845)	(1,144)
Recorded Value	484,843	470,544
Estimated Fair Value	477,219	454,643
Unsecured Debt | Series A Notes
Debt Instrument [Line Items]
Outstanding Balance	150,000	150,000
Unamortized Debt Issuance Costs	(845)	(1,144)
Recorded Value	149,155	148,856
Estimated Fair Value	141,531	132,955
Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Recorded Value	335,688	321,688
Revolving Credit Facility | Line of Credit | SPV Facility
Debt Instrument [Line Items]
Outstanding Balance	203,688	223,688
Unamortized Debt Issuance Costs	0	0
Recorded Value	203,688	223,688
Estimated Fair Value	203,688	223,688
Revolving Credit Facility | Line of Credit | Corporate Facility
Debt Instrument [Line Items]
Outstanding Balance	132,000	98,000
Unamortized Debt Issuance Costs	0	0
Recorded Value	132,000	98,000
Estimated Fair Value	$ 132,000	$ 98,000

DEBT - Schedule of Interest Exp

DEBT - Schedule of Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total Interest Expense	$ 36,458	$ 24,423	$ 14,469
Unsecured Debt | Series A Notes
Debt Instrument [Line Items]
Total Interest Expense	6,358	6,167	653
Unsecured Debt | Main Street Term Loan
Debt Instrument [Line Items]
Total Interest Expense	0	0	1,835
Revolving Credit Facility | Line of Credit | SPV Facility
Debt Instrument [Line Items]
Total Interest Expense	22,184	13,856	8,255
Revolving Credit Facility | Line of Credit | Corporate Facility
Debt Instrument [Line Items]
Total Interest Expense	7,916	4,400	2,681
Revolving Credit Facility | Line of Credit | Deutsche Bank Credit Facility
Debt Instrument [Line Items]
Total Interest Expense	$ 0	$ 0	$ 1,045

DEBT - Corporate Facility (Deta

DEBT - Corporate Facility (Details) - Revolving Credit Facility - Line of Credit - Corporate Facility			12 Months Ended
	Apr. 27, 2023	Mar. 06, 2017	Dec. 31, 2023 USD ($) extensionOption	Dec. 31, 2022
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			$ 165,000,000
Line of credit facility, maximum borrowing capacity including accordion feature			$ 200,000,000
Debt instrument, number of extension options | extensionOption			2
Debt instrument, extension option term			1 year
Debt instrument effective interest rate			7.84%
Debt Instrument, average interest rate			7.54%	4.11%
Minimum
Debt Instrument [Line Items]
Line of credit facility, unused capacity, commitment fee percentage		0.30%
Line of credit facility, commitment fee percentage		50%
Maximum
Debt Instrument [Line Items]
Line of credit facility, unused capacity, commitment fee percentage		0.625%
Line of credit facility, commitment fee percentage		50%
SOFR
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	0.10%
SOFR | Debt Variable Rate Component One
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		2.50%
SOFR | Debt Variable Rate Component Two
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		1.10%
Base Rate | Debt Variable Rate Component Two
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		1.40%
Federal Funds Rate | Debt Variable Rate Component Two
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		0.50%

DEBT - SPV Facility (Details)

DEBT - SPV Facility (Details) - Revolving Credit Facility - SPV Facility - Line of Credit - USD ($)		12 Months Ended
	Feb. 03, 2021	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 325,000,000	$ 300,000,000
Line of credit facility, unused capacity, commitment fee percentage	0.75%
Line of credit facility, maximum borrowing capacity including accordion feature		$ 450,000,000
Debt instrument effective interest rate		8.39%
Debt Instrument, average interest rate		8.09%	4.71%
SOFR
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	3%

DEBT - Series A Notes (Details)

DEBT - Series A Notes (Details) - Series A Notes - Unsecured Debt - USD ($)	Dec. 31, 2023	Dec. 31, 2022	Jan. 21, 2022	Oct. 22, 2021	Oct. 21, 2021
Debt Instrument [Line Items]
Aggregate principal amount	$ 150,000,000	$ 150,000,000	$ 72,500,000	$ 77,500,000	$ 77,500,000
Debt instrument, interest rate, stated					4.04%
Debt instrument, interest rate, below investment grade rating, stated percentage					5.04%

DEBT - Main Street Term Loan (D

DEBT - Main Street Term Loan (Details) - USD ($)			12 Months Ended
	Oct. 22, 2021	Jan. 27, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jul. 27, 2021
Debt Instrument [Line Items]
Loss on extinguishment of debt			$ 0	$ 0	$ 2,430,000
Unsecured Debt | Main Street Term Loan
Debt Instrument [Line Items]
Debt instrument, par value		$ 40,000,000
Debt instrument, fee		1%
Debt instrument, increase (decrease) in face amount						$ 20,000,000
Loss on extinguishment of debt	$ 300,000
Unsecured Debt | Main Street Term Loan, Delayed
Debt Instrument [Line Items]
Debt instrument, par value						15,000,000
Unsecured Debt | Main Street Term Loan, Delayed | Debt Instrument, Tranche One
Debt Instrument [Line Items]
Debt instrument, par value						7,500,000
Unsecured Debt | Main Street Term Loan, Delayed | Debt Instrument, Tranche Two
Debt Instrument [Line Items]
Debt instrument, par value						$ 7,500,000

DEBT - Deutsche Bank Credit Fac

DEBT - Deutsche Bank Credit Facility (Details) - USD ($) $ in Thousands		12 Months Ended
	Feb. 03, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Loss on extinguishment of debt		$ 0	$ 0	$ 2,430
Deutsche Bank Credit Facility | Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Loss on extinguishment of debt	$ 2,100
Debt Instrument, average interest rate				2.93%

DEBT - Schedule of Contractual

DEBT - Schedule of Contractual Payment Obligations (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022	Jan. 21, 2022	Oct. 22, 2021	Oct. 21, 2021
Debt Instrument [Line Items]
2024	$ 0
2025	0
2026	282,000,000
2027	0
2028	203,688,000
Thereafter	0
Total	485,688,000	$ 471,688,000
Series A Notes due 2026 | Unsecured Debt
Debt Instrument [Line Items]
2024	0
2025	0
2026	150,000,000
2027	0
2028	0
Thereafter	0
Total	150,000,000	150,000,000
Debt instrument, par value	150,000,000	150,000,000	$ 72,500,000	$ 77,500,000	$ 77,500,000
Revolving Credit Facility | SPV Facility | Line of Credit
Debt Instrument [Line Items]
2024	0
2025	0
2026	0
2027	0
2028	203,688,000
Thereafter	0
Total	203,688,000	223,688,000
Line of credit facility, remaining borrowing capacity	96,300,000
Revolving Credit Facility | Corporate Facility | Line of Credit
Debt Instrument [Line Items]
2024	0
2025	0
2026	132,000,000
2027	0
2028	0
Thereafter	0
Total	132,000,000	$ 98,000,000
Line of credit facility, remaining borrowing capacity	$ 33,000,000

FINANCIAL HIGHLIGHTS (Details)

FINANCIAL HIGHLIGHTS (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Investment Company, Financial Highlights [Roll Forward]
NAV at the beginning of the period (in dollars per share)	$ 7.61	$ 7.68	$ 7.28	$ 7.77	$ 7.96
Net investment income (in dollars per share)	0.72	0.66	0.67	0.59	0.71
Net realized loss (in dollars per share)	(0.42)	(0.05)	(0.04)	(0.66)	(0.23)
Net unrealized appreciation (depreciation) (in dollars per share)	0.58	(0.02)	0.31	(0.03)	0.04
Income tax provision (in dollars per share)	(0.05)	(0.02)	(0.02)	(0.02)	(0.01)
Net increase (decrease) in net assets resulting from operations (in dollars per share)	0.83	0.57	0.92	(0.12)	0.51
Dividends paid from net investment income (in dollars per share)	(0.70)	(0.65)	(0.53)	(0.35)	(0.68)
Dividends from capital gains (in dollars per share)	0	0	0	0	(0.02)
Dividends paid or accrued (in dollars per share)	(0.70)	(0.65)	(0.53)	(0.35)	(0.70)
Accretive effect of stock repurchases (repurchasing shares below NAV) (in dollars per share)	0.03	0	0	0	0
Other (in dollars per share)	0	0.01	0.01	(0.02)	0
NAV at the end of the period (in dollars per share)	$ 7.77	$ 7.61	$ 7.68	$ 7.28	$ 7.77
Shares outstanding at the end of the period (in shares)	80,108,865	80,105,999	79,826,605	79,608,304	78,463,377
NAV at end of period	$ 622,307	$ 609,665	$ 613,170	$ 579,624	$ 609,305
Average NAV	613,525	611,214	593,440	557,382	622,708
Average outstanding debt	$ 487,271	$ 494,957	$ 321,973	$ 386,084	$ 474,000
Investment Company, Ratio To Average Net Assets [Abstract]
Ratio of total expenses, including income tax expense, to average NAV	12.63%	8.60%	6.51%	7.38%	9.11%
Ratio of operating expenses to average NAV	12.02%	8.33%	6.20%	7.16%	9.11%
Ratio of operating expenses excluding interest expense, to average NAV	6.07%	4.33%	3.76%	4.07%	4.86%
Ratio of operating expenses, excluding interest expense and incentive fees to average NAV	4.02%	3.98%	3.66%	4.07%	4.22%
Ratio of net investment income to average NAV	9.40%	8.65%	8.99%	8.40%	8.84%
Portfolio turnover ratio	21.82%	18.92%	35.39%	8.93%	33.30%
Total return based on change in NAV	10.86%	7.43%	12.71%	(1.80%)	6.41%
Expense waivers	$ 8,300	$ 4,500	$ 4,300	$ 3,600	$ 3,100
Investment Company, Ratio To Average Net Assets Excluding Expense Waivers [Abstract]
Ratio of total expenses, including income tax expense, to average NAV	13.98%	9.33%	7.24%	8.11%	9.84%
Ratio of operating expenses to average NAV	13.37%	9.06%	6.92%	7.89%	9.84%
Ratio of operating expenses, excluding interest expense, to average NAV	7.43%	5.07%	4.49%	4.80%	5.58%
Ratio of operating expenses, excluding interest expense and incentive fees, to average NAV	0.0538	0.0472	0.0439	0.0480	0.0495
Ratio of net investment income to average NAV	8.05%	7.90%	8.26%	7.67%	8.11%
Total return based on change in NAV	9.50%	6.69%	11.98%	(2.20%)	5.85%

DIVIDENDS, DISTRIBUTIONS AND _3

DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Quarterly dividend	$ 56,100,000	$ 51,600,000
Dividends, per share (in dollars per share)	$ 0.700	$ 0.645
Dividends on accrual basis	$ 56,100,000
Dividends on accrual basis, per share (in dollars per share)	$ 0.700
Ordinary income totaling (in dollars per share)	0.596
Qualified dividend income totaling (in dollars per share)	$ 0.104
Undistributed taxable income	$ 14,700,000
Undistributed taxable income (in dollars per share)	$ 0.18
Tax basis, cost	$ 1,035,000,000	$ 1,059,900,000
Net unrealized appreciation	57,900,000	8,300,000
Gross unrealized appreciation	96,400,000	122,600,000
Gross unrealized depreciation	154,300,000	114,300,000
Net deferred tax liabilities	3,259,000	362,000
Deferred tax assets, valuation allowance	0	$ 0
Net capital loss carryforwards	$ 0

DIVIDENDS, DISTRIBUTIONS AND _4

DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME - Schedule of Tax Distribution (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Ordinary income	$ 47,756	$ 61,854	$ 29,797
Qualified dividends	8,301	1,727	92
Distributions on tax basis	$ 56,057	$ 63,581	$ 29,889

DIVIDENDS, DISTRIBUTIONS AND _5

DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME - Schedule of Taxable Income and to Total Distributions Declared to Common Stock Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Net increase in net assets resulting from operations	$ 66,209	$ 45,588	$ 73,636
Net unrealized (appreciation) depreciation	(46,319)	1,702	(25,095)
Income tax provision	3,769	1,643	1,890
Pre-tax book (income) loss not consolidated for tax purposes	4,241	(9,748)	(17,640)
Book income and tax income differences, including debt origination, structuring fees, dividends, realized gains and changes in estimates	22,228	9,820	3,171
Estimated taxable income	50,128	49,005	35,962
Taxable income earned in prior year and carried forward for distribution in current year	20,674	23,276	29,173
Taxable income earned prior to period end and carried forward for distribution next period	(28,764)	(33,491)	(35,250)
Dividend accrued as of period end and paid in the following period	14,019	12,817	11,974
Taxable income earned to be carried forward	(14,745)	(20,674)	(23,276)
Total distributions accrued or paid to common stockholders	$ 56,057	$ 51,607	$ 41,859

DIVIDENDS, DISTRIBUTIONS AND _6

DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME - Schedule of Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current tax expense (benefit):
Federal	$ 13	$ 33	$ 0
State	340	495	495
Excise	519	753	1,395
Total current tax expense	872	1,281	1,890
Deferred tax expense (benefit):
Federal	3,450	351	0
State	(553)	11	0
Total deferred tax expense	2,897	362	0
Income tax provision	$ 3,769	$ 1,643	$ 1,890

DIVIDENDS, DISTRIBUTIONS AND _7

DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Net operating loss carryforwards	$ 671	$ 398
Interest expense carryforwards	3,258	1,426
General business and foreign tax credit carryforwards	329	156
Capital loss carryforwards	6,041	10,013
Total deferred tax assets	10,299	11,993
Deferred tax liabilities:
Net basis differences in portfolio investments	(1,484)	(3,777)
Net unrealized appreciation of portfolio investments	(12,074)	(8,578)
Total deferred tax liabilities	(13,558)	(12,355)
Total deferred tax liabilities, net	$ (3,259)	$ (362)

SHARE REPURCHASES - Narrative (

SHARE REPURCHASES - Narrative (Details) $ in Thousands				3 Months Ended											12 Months Ended			33 Months Ended
	Nov. 15, 2023 USD ($) shares	Jun. 14, 2023 USD ($) shares	May 15, 2023 USD ($) shares	Dec. 31, 2023 USD ($) offer shares	Sep. 30, 2023 shares	Jun. 30, 2023 shares	Mar. 31, 2023 shares	Dec. 31, 2022 shares	Sep. 30, 2022 shares	Jun. 30, 2022 shares	Mar. 31, 2022 shares	Dec. 31, 2021 shares	Sep. 30, 2021 shares	Jun. 30, 2021 shares	Dec. 31, 2023 USD ($) offer shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2023 USD ($) offer shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Payments for repurchase of common stock															$ 24,427	$ 15,984	$ 10,065
Common stock repurchased (in shares) | shares				958,928	978,579	965,568	519,489	522,310	527,508	536,065	489,031	511,314	438,292	383,513				6,830,597
Stock repurchased															$ 24,427	$ 15,986	$ 10,065
Dutch Auction
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of offerings completed | offer				3											3			3
Payments for repurchase of common stock, cumulative				$ 153,500											$ 153,500			$ 153,500
Payments for repurchase of common stock	$ 2,800	$ 2,800	$ 2,200
Common stock repurchased (in shares) | shares	427,843	432,920	406,904												1,267,667
Stock repurchased															$ 7,800
Common Stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Weighted-average number of shares of common stock outstanding, percentage															2.50%
Percentage of cash retained dividend reinvestment plan															90%
Common stock repurchased (in shares) | shares															3,422,565	2,074,914	1,333,118
Stock repurchased															$ 3	$ 2	$ 1

SHARE REPURCHASES - Schedule of

SHARE REPURCHASES - Schedule of Repurchases of Common Stock (Details) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended											12 Months Ended			33 Months Ended
	Nov. 15, 2023	Jun. 14, 2023	May 15, 2023	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total number of shares purchased (in shares)				958,928	978,579	965,568	519,489	522,310	527,508	536,065	489,031	511,314	438,292	383,513				6,830,597
Average price paid per share (in dollars per share)				$ 7.12	$ 7.12	$ 6.59	$ 7.67	$ 7.66	$ 7.64	$ 7.77	$ 7.75	$ 7.60	$ 7.57	$ 7.46
Payments for repurchase of common stock															$ 24,427	$ 15,984	$ 10,065
Dutch Auction
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total number of shares purchased (in shares)	427,843	432,920	406,904												1,267,667
Price paid per share (in dollars per share)	$ 6.50	$ 6.50	$ 5.50
Payments for repurchase of common stock	$ 2,800	$ 2,800	$ 2,200
Common Stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total number of shares purchased (in shares)															3,422,565	2,074,914	1,333,118

DIVIDEND REINVESTMENT PLAN (Det

DIVIDEND REINVESTMENT PLAN (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Equity [Abstract]
Percentage of shares to be issued under ceiling limit of net asset value per share	2.50%
DRIP participation	$ 18,417	$ 17,750	$ 11,160
Shares issued for DRIP (in shares)	2,345,246	2,259,611	1,461,776

COMMITMENTS AND CONTINGENCIES_2

COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Other Commitments [Line Items]
Committed capital	$ 70,798
Equity
Other Commitments [Line Items]
Committed capital	9,864
Debt
Other Commitments [Line Items]
Committed capital	60,934
Investment, Identifier [Axis]: AAC Holdings, Inc.
Other Commitments [Line Items]
Committed capital	71
Investment, Identifier [Axis]: AB Centers Acquisition Corporation
Other Commitments [Line Items]
Committed capital	2,810
Investment, Identifier [Axis]: ATS Operating, LLC
Other Commitments [Line Items]
Committed capital	200
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC
Other Commitments [Line Items]
Committed capital	512
Investment, Identifier [Axis]: Acumera, Inc.
Other Commitments [Line Items]
Committed capital	768
Investment, Identifier [Axis]: Adams Publishing Group, LLC
Other Commitments [Line Items]
Committed capital	5
Investment, Identifier [Axis]: American Health Staffing Group, Inc.
Other Commitments [Line Items]
Committed capital	1,667
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC
Other Commitments [Line Items]
Committed capital	145
Investment, Identifier [Axis]: ArborWorks, LLC
Other Commitments [Line Items]
Committed capital	1,481
Investment, Identifier [Axis]: Batjer TopCo, LLC
Other Commitments [Line Items]
Committed capital	230
Investment, Identifier [Axis]: Bettercloud, Inc.
Other Commitments [Line Items]
Committed capital	1,216
Investment, Identifier [Axis]: Bluestem Brands, Inc.
Other Commitments [Line Items]
Committed capital	1,840
Investment, Identifier [Axis]: Bond Brand Loyalty ULC
Other Commitments [Line Items]
Committed capital	900
Investment, Identifier [Axis]: Brightwood Capital Fund III, LP
Other Commitments [Line Items]
Committed capital	216
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc.
Other Commitments [Line Items]
Committed capital	1,239
Investment, Identifier [Axis]: CQ fluency, LLC
Other Commitments [Line Items]
Committed capital	4,500
Investment, Identifier [Axis]: Career Team Holdings, LLC
Other Commitments [Line Items]
Committed capital	200
Investment, Identifier [Axis]: CaseWorthy, Inc.
Other Commitments [Line Items]
Committed capital	400
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC
Other Commitments [Line Items]
Committed capital	600
Investment, Identifier [Axis]: Chamberlin Holding LLC
Other Commitments [Line Items]
Committed capital	400
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC
Other Commitments [Line Items]
Committed capital	381
Investment, Identifier [Axis]: Clad-Rex Steel, LLC
Other Commitments [Line Items]
Committed capital	100
Investment, Identifier [Axis]: Classic H&G Holdco, LLC
Other Commitments [Line Items]
Committed capital	860
Investment, Identifier [Axis]: Cody Pools, Inc.
Other Commitments [Line Items]
Committed capital	786
Investment, Identifier [Axis]: Elgin AcquireCo, LLC
Other Commitments [Line Items]
Committed capital	123
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC
Other Commitments [Line Items]
Committed capital	828
Investment, Identifier [Axis]: Escalent, Inc.
Other Commitments [Line Items]
Committed capital	349
Investment, Identifier [Axis]: Evergreen North America Acquisitions, LLC
Other Commitments [Line Items]
Committed capital	501
Investment, Identifier [Axis]: Freeport First Lien Loan Fund III LP
Other Commitments [Line Items]
Committed capital	8,340
Investment, Identifier [Axis]: GRT Rubber Technologies LLC
Other Commitments [Line Items]
Committed capital	468
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC
Other Commitments [Line Items]
Committed capital	300
Investment, Identifier [Axis]: Garyline, LLC
Other Commitments [Line Items]
Committed capital	2,626
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC
Other Commitments [Line Items]
Committed capital	100
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC
Other Commitments [Line Items]
Committed capital	1,000
Investment, Identifier [Axis]: HPEP 3, L.P.
Other Commitments [Line Items]
Committed capital	1,308
Investment, Identifier [Axis]: IG Investor, LLC
Other Commitments [Line Items]
Committed capital	1,000
Investment, Identifier [Axis]: IG Parent Corporation
Other Commitments [Line Items]
Committed capital	1,667
Investment, Identifier [Axis]: ITA Holdings Group, LLC
Other Commitments [Line Items]
Committed capital	366
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C.
Other Commitments [Line Items]
Committed capital	692
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC
Other Commitments [Line Items]
Committed capital	1,260
Investment, Identifier [Axis]: Insight Borrower Corporation
Other Commitments [Line Items]
Committed capital	3,888
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC
Other Commitments [Line Items]
Committed capital	43
Investment, Identifier [Axis]: Interface Security Systems, L.L.C
Other Commitments [Line Items]
Committed capital	1
Investment, Identifier [Axis]: Invincible Boat Company, LLC.
Other Commitments [Line Items]
Committed capital	561
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC
Other Commitments [Line Items]
Committed capital	440
Investment, Identifier [Axis]: Johnson Downie Opco, LLC
Other Commitments [Line Items]
Committed capital	400
Investment, Identifier [Axis]: Mako Steel, LP
Other Commitments [Line Items]
Committed capital	4,057
Investment, Identifier [Axis]: Metalforming Holdings, LLC
Other Commitments [Line Items]
Committed capital	205
Investment, Identifier [Axis]: Microbe Formulas, LLC
Other Commitments [Line Items]
Committed capital	434
Investment, Identifier [Axis]: Mini Melts of America, LLC
Other Commitments [Line Items]
Committed capital	1,988
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC
Other Commitments [Line Items]
Committed capital	200
Investment, Identifier [Axis]: NexRev LLC
Other Commitments [Line Items]
Committed capital	1,000
Investment, Identifier [Axis]: NinjaTrader, LLC
Other Commitments [Line Items]
Committed capital	750
Investment, Identifier [Axis]: Orttech Holdings, LLC
Other Commitments [Line Items]
Committed capital	200
Investment, Identifier [Axis]: PTL US Bidco, Inc
Other Commitments [Line Items]
Committed capital	427
Investment, Identifier [Axis]: Paragon Healthcare, Inc.
Other Commitments [Line Items]
Committed capital	571
Investment, Identifier [Axis]: Pinnacle TopCo, LLC
Other Commitments [Line Items]
Committed capital	285
Investment, Identifier [Axis]: Power System Solutions
Other Commitments [Line Items]
Committed capital	3,989
Investment, Identifier [Axis]: Purge Rite, LLC
Other Commitments [Line Items]
Committed capital	781
Investment, Identifier [Axis]: RA Outdoors LLC
Other Commitments [Line Items]
Committed capital	438
Investment, Identifier [Axis]: Richardson Sales Solutions
Other Commitments [Line Items]
Committed capital	1,061
Investment, Identifier [Axis]: Roof Opco, LLC
Other Commitments [Line Items]
Committed capital	972
Investment, Identifier [Axis]: SI East, LLC
Other Commitments [Line Items]
Committed capital	2,125
Investment, Identifier [Axis]: SPAU Holdings, LLC
Other Commitments [Line Items]
Committed capital	1,000
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC
Other Commitments [Line Items]
Committed capital	343
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC
Other Commitments [Line Items]
Committed capital	400
Investment, Identifier [Axis]: VVS Holdco, LLC
Other Commitments [Line Items]
Committed capital	800
Investment, Identifier [Axis]: Wall Street Prep, Inc.
Other Commitments [Line Items]
Committed capital	500
Investment, Identifier [Axis]: Watterson Brands, LLC
Other Commitments [Line Items]
Committed capital	$ 484

RELATED PARTY TRANSACTIONS (Det

RELATED PARTY TRANSACTIONS (Details)								1 Months Ended	12 Months Ended
	Nov. 01, 2023 USD ($) $ / shares shares	Aug. 01, 2023 USD ($) $ / shares shares	May 01, 2023 USD ($) $ / shares shares	May 02, 2022 USD ($) $ / shares shares	Jul. 27, 2021 USD ($)	Jan. 27, 2021 USD ($)	Oct. 30, 2020 component	Sep. 30, 2023 USD ($) $ / shares shares	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Related Party Transaction [Line Items]
Service expense									$ 19,828,000	$ 19,831,000	$ 17,316,000
Waiver of internal administrative services expenses									8,308,000	4,540,000	4,317,000
Accounts payable and other liabilities									255,000	1,292,000
Related Party | MSC Income | Advisory Agreement
Related Party Transaction [Line Items]
Base fee rate							1.75%
Number of components related to incentive fee | component							2
Related Party | MSC Income | Advisory Agreement, Incentive Rate, Pre-Incentive Fee Net Investment Income
Related Party Transaction [Line Items]
Incentive fee rate							20%
Related Party | MSC Income | Advisory Agreement - Incentive Rate, Quarterly Hurdle Rate
Related Party Transaction [Line Items]
Incentive fee rate							1.875%
Related Party | MSC Income | Advisory Agreement - Incentive Rate, Annualized Hurdle Rate
Related Party Transaction [Line Items]
Incentive fee rate							7.50%
Related Party | MSC Income | Advisory Agreement, Incentive Rate, Pre-Incentive Fee Net Investment Income Below Catch-Up Threshold
Related Party Transaction [Line Items]
Incentive fee rate							100%
Related Party | MSC Income | Advisory Agreement - Incentive Rate, Quarterly Catch-Up Threshold
Related Party Transaction [Line Items]
Incentive fee rate							2.34375%
Related Party | MSC Income | Advisory Agreement - Incentive Rate, Annualized Catch-Up Threshold
Related Party Transaction [Line Items]
Incentive fee rate							9.375%
Related Party | MSC Income | Advisory Agreement - Incentive Rate, Pre-Incentive Fee Net Investment Income Exceeds Catch-Up Threshold
Related Party Transaction [Line Items]
Incentive fee rate							20%
Related Party | MSC Income | Advisory Agreement - Base Management Fees
Related Party Transaction [Line Items]
Service expense									19,800,000	19,800,000	17,300,000
Related Party | MSC Income | Advisory Agreement - Subordinated Incentive Fees
Related Party Transaction [Line Items]
Service expense									12,600,000	2,100,000	600,000
Related Party | MSC Income | Advisory Agreement - Incentive Fees, Capital Gains Fees
Related Party Transaction [Line Items]
Service expense									0	0	0
Related Party | MSC Income | Advisory Agreement - Internal Administrative Services
Related Party Transaction [Line Items]
Service expense									8,900,000	5,100,000	4,300,000
Waiver of internal administrative services expenses									$ 8,300,000	4,500,000	$ 4,300,000
Related Party | MSC Income - HMS Adviser | Offering Costs
Related Party Transaction [Line Items]
Percentage of payment of offering costs									1.50%
Accounts payable and other liabilities									$ 600,000
Fee paid indirectly									$ 100,000	$ 300,000
Related Party | Main Street | Dividend Reinvestment Plan
Related Party Transaction [Line Items]
Sale of stock, number of shares (in shares) | shares	475,888	348,542	255,754	94,697
Sale of stock, price per share (in dollars per share) | $ / shares	$ 7.88	$ 7.89	$ 7.82	$ 7.92
Sale of stock, proceeds	$ 3,750,000	$ 2,800,000	$ 2,000,000	$ 750,000
Related Party | Main Street | Dutch Auction Tender Offer
Related Party Transaction [Line Items]
Sale of stock, number of shares (in shares) | shares								115,385
Sale of stock, price per share (in dollars per share) | $ / shares								$ 6.50
Sale of stock, proceeds								$ 800,000
Related Party | Main Street | Main Street Term Loan | Unsecured Debt
Related Party Transaction [Line Items]
Amounts of transaction					$ 60,000,000	$ 40,000,000
Upfront fees rate						1%
Amounts of transaction, increase (decrease)					$ 20,000,000
Rate					5%
Related Party | Main Street | Main Street Term Loan, Delayed | Unsecured Debt
Related Party Transaction [Line Items]
Amounts of transaction					$ 15,000,000
Related Party | Main Street | Main Street Term Loan, Delayed | Unsecured Debt | Debt Instrument, Tranche One
Related Party Transaction [Line Items]
Amounts of transaction					7,500,000
Related Party | Main Street | Main Street Term Loan, Delayed | Unsecured Debt | Debt Instrument, Tranche Two
Related Party Transaction [Line Items]
Amounts of transaction					$ 7,500,000

SUBSEQUENT EVENTS (Details)

SUBSEQUENT EVENTS (Details) - USD ($) $ / shares in Units, $ in Millions

3 Months Ended

33 Months Ended

Mar. 07, 2024

Feb. 05, 2024

Jan. 31, 2024

Dec. 31, 2023

Sep. 30, 2023

Jun. 30, 2023

Mar. 31, 2023

Dec. 31, 2022

Sep. 30, 2022

Jun. 30, 2022

Mar. 31, 2022

Dec. 31, 2021

Sep. 30, 2021

Jun. 30, 2021

Dec. 31, 2023

Subsequent Event [Line Items]

Common stock repurchased (in shares)

958,928

978,579

965,568

519,489

522,310

527,508

536,065

489,031

511,314

438,292

383,513

6,830,597

Subsequent Event

Subsequent Event [Line Items]

Sale of stock, proceeds

$ 4

Common stock repurchased (in shares)

518,173

Common stock repurchased price per share (in dollars per share)

$ 7.81

Proceeds from issuance of shares, percentage

90%

90%

Cash dividend (in dollars per share)

$ 0.185

Dividend Reinvestment Plan | Subsequent Event

Subsequent Event [Line Items]

Sale of stock, number of shares (in shares)

314,070

Sale of stock, price per share (in dollars per share)

$ 7.96

Sale of stock, proceeds

$ 2.5

Dutch Auction | Subsequent Event

Subsequent Event [Line Items]

Sale of stock, proceeds

$ 2.5

Common stock repurchased (in shares)

357,143

Common stock repurchased price per share (in dollars per share)

$ 7

Consolidated Schedule of Inve_5

Consolidated Schedule of Investments In and Advances to Affiliates (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		$ (34,010)		$ (3,936)		$ (498)
Amount of Unrealized Gain/(Loss)		46,319		(1,702)		25,095
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]	1,068,143
Ending balance		1,092,895	[2]	1,068,143	[1]
Control investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		2,223		0		0
Amount of Unrealized Gain/(Loss)		(1,289)		1,503		2,001
Amount of Interest, Fees or Dividends Credited to Income		3,101		3,223
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		50,303	[1],[3]	46,583
Gross Additions		17,176		4,735
Gross Reductions		13,835		1,015
Ending balance		53,644	[2],[4]	50,303	[1],[3]	46,583
Affiliate investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		(7,188)		(7,327)		(2,673)
Amount of Unrealized Gain/(Loss)		25,116		15,689		10,237
Amount of Interest, Fees or Dividends Credited to Income		29,805		24,057
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		277,000	[1],[5]	234,158
Gross Additions		115,308		84,672
Gross Reductions		101,029		41,830
Ending balance		291,279	[2],[6]	277,000	[1],[5]	234,158
Investment, Identifier [Axis]: Flame King Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0
Amount of Unrealized Gain/(Loss)		2,570
Amount of Interest, Fees or Dividends Credited to Income		814
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		4,400
Gross Additions		2,570
Gross Reductions		0
Ending balance		6,970		4,400
Investment, Identifier [Axis]: AAC Holdings, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]	0
Ending balance		0	[8]	$ 0	[7]
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7]			18%
PIK Rate	[7]			18%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]	$ 4,110
Ending balance	[7]			$ 4,110
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8]	18%
PIK Rate	[8]	18%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8]	$ 149
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[8]	18%
PIK Rate	[8]	18%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8]	$ 4,958
Investment, Identifier [Axis]: AAC Holdings, Inc., Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[9]	0
Ending balance		$ 0	[8],[10]	$ 0	[7],[9]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread		5%	[11],[12],[13]	6%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ (5)
Ending balance		$ 0	[11],[12],[13]	$ (5)	[14],[15]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.43%	[11],[13]	10.20%	[14],[15]
Spread		6%	[11],[13]	6%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 86
Ending balance		$ 1,081	[11],[13]	$ 86	[14],[15]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.43%	[11],[13]	10.58%	[14],[15]
Spread		6%	[11],[13]	6%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 1,983
Ending balance		$ 2,304	[11],[13]	$ 1,983	[14],[15]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.43%
Spread	[11],[13]	6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 772
Investment, Identifier [Axis]: ADS Tactical, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.22%	[8],[13]	10.14%	[7],[15]
Spread		5.75%	[8],[13]	5.75%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]	$ 8,213
Ending balance		4,214	[8],[13]	$ 8,213	[7],[15]
Investment, Identifier [Axis]: AFG Capital Group, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		1,800		0
Amount of Unrealized Gain/(Loss)		(2,050)		420
Amount of Interest, Fees or Dividends Credited to Income		0		50
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,350	[16]	1,930
Gross Additions		1,800		420
Gross Reductions		4,150		0
Ending balance		0		$ 2,350	[16]	1,930
Investment, Identifier [Axis]: AFG Capital Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate				10%
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		36
Gross Additions				0
Gross Reductions				36
Ending balance				0		36
Investment, Identifier [Axis]: AMEREQUIP LLC., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	80
Ending balance		$ 100	[11],[17]	$ 80	[14]
Investment, Identifier [Axis]: AMEREQUIP LLC., Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.40%	[11],[12],[13]	7.40%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 0
Ending balance		$ 0	[11],[12],[13]	$ 0	[14],[15]
Investment, Identifier [Axis]: AMEREQUIP LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.76%	[11],[13]	11.72%	[14],[15]
Spread		7.40%	[11],[13]	7.40%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 2,025
Ending balance		1,538	[11],[13]	$ 2,025	[14],[15]
Investment, Identifier [Axis]: ATS Operating, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	90
Ending balance		$ 90	[11]	$ 90	[14]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.16%
Spread		6.50%	[11],[13]	5.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 0
Ending balance		$ 50	[11],[13]	$ 0	[14],[15]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.16%	[11],[13]	9.32%	[14],[15]
Spread		5.50%	[11],[13]	5.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 914
Ending balance		$ 925	[11],[13]	$ 914	[14],[15]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.16%	[11],[13]	11.32%	[14],[15]
Spread		7.50%	[11],[13]	7.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 916
Ending balance		925	[11],[13]	$ 916	[14],[15]
Investment, Identifier [Axis]: ATX Networks Corp., Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		3,178		0
Amount of Unrealized Gain/(Loss)		(3,290)		3,290
Amount of Interest, Fees or Dividends Credited to Income		0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		3,290	[7]	0
Gross Additions		3,178		3,290
Gross Reductions		6,468		0
Ending balance		$ 0		$ 3,290	[7]	0
Investment, Identifier [Axis]: ATX Networks Corp., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7],[15]			12.23%
Spread		7.50%		7.50%	[7],[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(102)		135
Amount of Interest, Fees or Dividends Credited to Income		856		756
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		6,368	[7],[15]	7,121
Gross Additions		545		364
Gross Reductions		6,913		1,117
Ending balance		$ 0		$ 6,368	[7],[15]	7,121
Investment, Identifier [Axis]: ATX Networks Corp., Unsecured Debt
Schedule of Investments [Line Items]
Total Rate		10%		10%	[7]
PIK Rate	[7]			10%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(276)		309
Amount of Interest, Fees or Dividends Credited to Income		1,135		327
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,614	[7]	1,977
Gross Additions		1,135		637
Gross Reductions		3,749		0
Ending balance		0		2,614	[7]	1,977
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	56
Ending balance		$ 124	[11],[17]	$ 56	[14]
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.25%	[11],[12],[13]	7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ (8)
Ending balance		$ (5)	[11],[12],[13]	$ (8)	[14],[15]
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.76%	[11],[13]	12.17%	[14],[15]
Spread		7.25%	[11],[13]	7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 3,876
Ending balance		$ 3,344	[11],[13]	$ 3,876	[14],[15]
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[15]			13.88%
Spread		7.50%	[11],[12],[13]	9.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 4,616
Ending balance		$ (8)	[11],[12],[13]	$ 4,616	[14],[15]
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.98%	[11],[13]	13.57%	[14],[15]
Spread		7.50%	[11],[13]	9%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 1,379
Ending balance		11,922	[11],[13]	$ 1,379	[14],[15]
Investment, Identifier [Axis]: Acumera, Inc., Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[18]	$ 90
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11%	[11],[13],[19]	10%	[14],[15],[20]
Spread		7%	[11],[13],[19]	6%	[14],[15],[20]
PIK Rate	[11],[13],[19]	1%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[20]	$ 565
Ending balance		$ 917	[11],[13],[19]	$ 565	[14],[15],[20]
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11%	[11],[13],[19]	10%	[14],[15],[20]
Spread		7%	[11],[13],[19]	7.50%	[14],[15],[20]
PIK Rate	[11],[13],[19]	1%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[20]	$ 2,826
Ending balance		$ 2,481	[11],[13],[19]	$ 2,826	[14],[15],[20]
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		5%	[11],[12],[13]	6%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ (13)
Ending balance		$ (10)	[11],[12],[13]	$ (13)	[14],[15]
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%	[11],[13]	11.12%	[14],[15]
Spread		5%	[11],[13]	6%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 8,271
Ending balance		$ 8,188	[11],[13]	$ 8,271	[14],[15]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.29%	[11],[13]	10.46%	[14],[15]
Spread		9.75%	[11],[13]	6.75%	[14],[15]
PIK Rate	[11],[13]	15.29%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 4,148
Ending balance		$ 4,102	[11],[13]	$ 4,148	[14],[15]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.29%	[11],[13]	12.46%	[14],[15]
Spread		9.75%	[11],[13]	8.75%	[14],[15]
PIK Rate	[11],[13]	15.29%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 4,161
Ending balance		$ 0	[11],[13]	$ 4,161	[14],[15]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13],[21]	17.29%
Spread	[11],[13],[21]	11.75%
PIK Rate	[11],[13],[21]	17.29%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13],[21]	$ 2,522
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[13],[21]	17.29%
Spread	[11],[13],[21]	11.75%
PIK Rate	[11],[13],[21]	17.29%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13],[21]	$ 0
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[22]			7.50%
Spread	[7],[22]			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[22]	136
Ending balance		109	[8],[21],[23]	$ 136	[7],[22]
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[15],[22]			7.50%
Spread	[7],[15],[22]			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15],[22]	658
Ending balance		526	[8],[21],[23]	$ 658	[7],[15],[22]
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
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		0
Gross Additions				0
Gross Reductions				0
Ending balance				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
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		0
Gross Additions				0
Gross Reductions				0
Ending balance				0		0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		880
Ending balance		$ 1,210		$ 880
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		$ 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
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Total Rate		14.13%		14.13%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 0
Ending balance		0		$ 0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0		0
Amount of Unrealized Gain/(Loss)		330		(340)
Amount of Interest, Fees or Dividends Credited to Income		0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		880		1,220
Gross Additions		330		0
Gross Reductions		0		340
Ending balance		$ 1,210		$ 880		1,220
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[13]	15.38%
Spread		10%	[13]	10%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		4		2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		(2)	[15]	(4)
Gross Additions		56		2
Gross Reductions		0		0
Ending balance		$ 54	[13]	$ (2)	[15]	(4)
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.38%	[13]	14.13%	[15]
Spread		10%	[13]	10%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		188		174
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,135	[15]	1,182
Gross Additions		21		23
Gross Reductions		136		70
Ending balance		1,020	[13]	1,135	[15]	1,182
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	[9]	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		0	[11]	$ 0	[14]
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	7,468
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	$ 0
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15%	[11]	13.41%	[14],[15]
Spread	[14],[15]			9%
PIK Rate	[11]	15%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 2,095
Ending balance		$ 1,007	[11]	$ 2,095	[14],[15]
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.04%	[11],[13]	13.56%	[14],[15]
Spread		6.50%	[11],[13]	9%	[14],[15]
PIK Rate	[11],[13]	12.04%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 13,313
Ending balance		3,765	[11],[13]	$ 13,313	[14],[15]
Investment, Identifier [Axis]: Archer Systems, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	62
Ending balance		100	[11]	$ 62	[14]
Investment, Identifier [Axis]: Archer Systems, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[14],[15]			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	(4)
Ending balance	[14],[15]			$ (4)
Investment, Identifier [Axis]: Archer Systems, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[14],[15]			10.92%
Spread	[14],[15]			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	2,170
Ending balance	[14],[15]			$ 2,170
Investment, Identifier [Axis]: BBB Tank Services, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0
Ending balance				$ 0
Investment, Identifier [Axis]: BBB Tank Services, LLC, Preferred Stock (non-voting)
Schedule of Investments [Line Items]
Total Rate				15%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0
Ending balance				$ 0
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15],[24]			15.12%
Spread	[15],[24]			11%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[24]	200
Ending balance	[15],[24]			$ 200
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 2
Schedule of Investments [Line Items]
Total Rate	[15],[24]			15.12%
Spread	[15],[24]			11%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[24]	522
Ending balance	[15],[24]			$ 522
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)		273		463
Amount of Interest, Fees or Dividends Credited to Income		0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,107	[14]	643
Gross Additions		273		464
Gross Reductions		0		0
Ending balance		1,380	[11]	1,107	[14]	643
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)		225		0
Amount of Interest, Fees or Dividends Credited to Income		76		70
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		455	[16]	0
Gross Additions		225		455
Gross Reductions		0		0
Ending balance		$ 680	[17]	455	[16]	0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10%
Amount of Realized Gain/(Loss)		$ 0		0
Amount of Unrealized Gain/(Loss)		1		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)		0
Gross Additions		1		50
Gross Reductions		0		51
Ending balance		$ 0	[12]	$ (1)		0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		11%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 1,205
Ending balance		$ 30		$ 1,205
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		10%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		0
Amount of Interest, Fees or Dividends Credited to Income		2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0
Gross Additions		70
Gross Reductions		40
Ending balance		30		$ 0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2.2
Schedule of Investments [Line Items]
Total Rate				11%
Amount of Realized Gain/(Loss)				$ 0
Amount of Unrealized Gain/(Loss)				0
Amount of Interest, Fees or Dividends Credited to Income				116
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 1,205		0
Gross Additions				1,205
Gross Reductions				0
Ending balance				1,205		0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		15
Amount of Interest, Fees or Dividends Credited to Income		129
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,205
Gross Additions		21
Gross Reductions		51
Ending balance		1,175		$ 1,205
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 1
Schedule of Investments [Line Items]
PIK Rate	[14],[16],[25]			16%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[25]	270
Ending balance		200	[11],[26]	$ 270	[14],[16],[25]
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 2
Schedule of Investments [Line Items]
Total Rate	[14],[16],[25]			8%
PIK Rate	[14],[16],[25]			8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[25]	4,561
Ending balance		2,560	[11],[17],[26]	$ 4,561	[14],[16],[25]
Investment, Identifier [Axis]: Berry Aviation, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[14]			12%
PIK Rate	[14]			1.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	$ 190
Ending balance	[14]			$ 190
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.25%	[11],[12],[13]	1%	[14],[15]
PIK Rate	[14],[15]			6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ (22)
Ending balance		$ (18)	[11],[12],[13]	$ (22)	[14],[15]
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.64%	[11],[13]	11.40%	[14],[15]
Spread		7.25%	[11],[13]	1%	[14],[15]
PIK Rate		6.25%	[11],[13]	6%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 7,991
Ending balance		7,998	[11],[13]	$ 7,991	[14],[15]
Investment, Identifier [Axis]: Binswanger Enterprises, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	420
Ending balance		120	[11]	420	[14]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]	4,708
Ending balance		$ 533	[8]	$ 4,708	[7],[16]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8],[13]	16%
Spread		7.50%	[8],[13]	8.50%	[7],[15]
PIK Rate	[8],[13]	15%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]	$ 0
Ending balance		$ 1,907	[8],[13]	$ 0	[7],[15]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.96%	[8],[13]	12.94%	[7],[15]
Spread		8.50%	[8],[13]	8.50%	[7],[15]
PIK Rate	[8],[13]	12.96%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]	$ 3,366
Ending balance		3,695	[8],[13]	$ 3,366	[7],[15]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[9]	1,173
Ending balance		129	[8],[10]	1,173	[7],[9]
Investment, Identifier [Axis]: Boccella Precast Products LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[16]	741
Ending balance		$ 498		$ 741	[16]
Investment, Identifier [Axis]: Boccella Precast Products LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10%		10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 80
Ending balance		80		$ 80
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[27],[28]	0
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[27],[28]	$ 310
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13],[27],[28]	7%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13],[27],[28]	$ (16)
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13],[27],[28]	11.54%
Spread	[11],[13],[27],[28]	6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13],[27],[28]	$ 4,040
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13],[27],[28]	13.54%
Spread	[11],[13],[27],[28]	8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13],[27],[28]	$ 4,040
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)		(370)		(160)
Amount of Interest, Fees or Dividends Credited to Income		30		207
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,770	[16]	1,930
Gross Additions		0		0
Gross Reductions		370		160
Ending balance		$ 1,400	[17]	$ 1,770	[16]	1,930
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.46%	[13]	14.12%	[15]
Spread		10%	[13]	10%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		224		220
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,491	[15]	2,005
Gross Additions		8		10
Gross Reductions		125		524
Ending balance		1,374	[13]	1,491	[15]	2,005
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	[16],[29],[30],[31]	1,576
Ending balance		1,360	[27],[32],[33]	1,576	[16],[29],[30],[31]
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	[16],[29],[30],[31]	9,082
Ending balance		$ 8,716	[17],[27],[32],[33]	$ 9,082	[16],[29],[30],[31]
Investment, Identifier [Axis]: Buca C, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		6%		6%
PIK Rate		6%		6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 0
Ending balance		$ 0		$ 0
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12%	[23]	9%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 8,345
Ending balance		$ 8,218	[23]	$ 8,345
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13]	10.46%
Spread		5%	[11],[13]	5%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 0
Ending balance		$ 310	[11],[13]	$ 0	[14],[15]
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.46%	[11],[13]	8.91%	[14],[15]
Spread		5%	[11],[13]	5%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 13,255
Ending balance		13,121	[11],[13]	$ 13,255	[14],[15]
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[16]	379
Ending balance		379		379	[16]
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]: CQ Fluency, LLC, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	7%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (44)
Investment, Identifier [Axis]: CQ Fluency, LLC, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	7%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (44)
Investment, Identifier [Axis]: CQ Fluency, LLC, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.45%
Spread	[11],[13]	7%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 7,280
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[14],[15],[34]			11.99%
Spread	[14],[15],[34]			8.50%
PIK Rate	[14],[15],[34]			0.01%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[34]	20,112
Ending balance	[14],[15],[34]			$ 20,112
Investment, Identifier [Axis]: Camin Cargo Control, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7],[15]			10.88%
Spread	[7],[15]			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]	7,342
Ending balance	[7],[15]			$ 7,342
Investment, Identifier [Axis]: Career Team Holdings, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		500
Ending balance		$ 500		$ 500
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[13]	11.38%
Spread		6%	[13]	6%	[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	$ (3)
Ending balance		$ 96	[13]	$ (3)	[15]
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%		12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 2,196
Ending balance		2,185		$ 2,196
Investment, Identifier [Axis]: CaseWorthy, Inc., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	80
Ending balance		$ 80	[11]	$ 80	[14]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		6%	[11],[12],[13]	6%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ (4)
Ending balance		$ (3)	[11],[12],[13]	$ (4)	[14],[15]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.61%	[11],[13]	10.73%	[14],[15]
Spread		6%	[11],[13]	6%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 2,574
Ending balance		$ 2,581	[11],[13]	$ 2,574	[14],[15]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.61%	[11],[13]	10.48%	[14],[15]
Spread		6%	[11],[13]	5.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 1,995
Ending balance		1,985	[11],[13]	$ 1,995	[14],[15]
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)		590		639
Amount of Interest, Fees or Dividends Credited to Income		30		30
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,170		1,460
Gross Additions		590		710
Gross Reductions		0		0
Ending balance		$ 2,760		$ 2,170		1,460
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		9%	[12],[13]	9%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		3		7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0	[15]	0
Gross Additions		0		360
Gross Reductions		0		360
Ending balance		$ 0	[12],[13]	$ 0	[15]	0
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.48%	[13]	13.13%	[15]
Spread		9%	[13]	9%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		29		115
Amount of Interest, Fees or Dividends Credited to Income		572		445
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		3,731	[15]	2,216
Gross Additions		663		1,612
Gross Reductions		0		97
Ending balance		4,394	[13]	3,731	[15]	2,216
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)		1,599		(300)
Amount of Interest, Fees or Dividends Credited to Income		1,045		463
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		5,728	[16]	6,030
Gross Additions		1,602		0
Gross Reductions		0		302
Ending balance		7,330	[17]	5,728	[16]	6,030
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)		37		180
Amount of Interest, Fees or Dividends Credited to Income		23		19
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		678	[16],[25]	385
Gross Additions		38		293
Gross Reductions		1		0
Ending balance		$ 715	[17],[26]	$ 678	[16],[25]	385
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6%	[12],[13]	6%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		49		0
Amount of Interest, Fees or Dividends Credited to Income		11		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],[13]	$ 0	[15]	0
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.49%	[13]	12.13%	[15]
Spread		8%	[13]	8%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(4)		(42)
Amount of Interest, Fees or Dividends Credited to Income		553		486
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		4,236	[15]	4,454
Gross Additions		4		42
Gross Reductions		335		260
Ending balance		$ 3,905	[13]	$ 4,236	[15]	4,454
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.60%	[11],[13],[35]	10.72%	[14],[15],[36]
Spread		7%	[11],[13],[35]	6.25%	[14],[15],[36]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[36]	$ 169
Ending balance		$ 183	[11],[13],[35]	$ 169	[14],[15],[36]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.66%	[11],[13]	10.71%	[14],[15],[37]
Spread		7%	[11],[13]	6.25%	[14],[15],[37]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[37]	$ 3,539
Ending balance		$ 3,224	[11],[13]	$ 3,539	[14],[15],[37]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.66%
Spread	[11],[13]	7%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 179
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.66%
Spread	[11],[13]	7%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 432
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)		590		(170)
Amount of Interest, Fees or Dividends Credited to Income		366		190
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		3,330	[16]	3,500
Gross Additions		590		0
Gross Reductions		0		170
Ending balance		3,920	[17]	3,330	[16]	3,500
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)		(760)		(500)
Amount of Interest, Fees or Dividends Credited to Income		69		190
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,060	[16]	2,560
Gross Additions		0		0
Gross Reductions		760		500
Ending balance		1,300	[17]	2,060	[16]	2,560
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)		55		20
Amount of Interest, Fees or Dividends Credited to Income		0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		152	[25]	133
Gross Additions		130		19
Gross Reductions		0		0
Ending balance		$ 282	[26]	$ 152	[25]	133
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.50%		13.23%	[15]
Spread	[15]			9%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	$ 2,620
Ending balance		$ 2,103		$ 2,620	[15]
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1.1
Schedule of Investments [Line Items]
Total Rate		11.50%
Spread				9%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		0		1
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
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 260
Ending balance		$ 251		$ 260
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		11.50%		13.23%
Spread				9%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(37)		0
Amount of Interest, Fees or Dividends Credited to Income		284		304
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,620		2,620
Gross Additions		0		0
Gross Reductions		517		0
Ending balance		$ 2,103		$ 2,620		2,620
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 3
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		26		27
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		260		268
Gross Additions		0		0
Gross Reductions		9		8
Ending balance		251		$ 260		268
Investment, Identifier [Axis]: Clarius BIGS, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[14],[22],[24]			15%
PIK Rate	[14],[22],[24]			15%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[22],[24]	19
Ending balance		16	[11],[21],[23]	$ 19	[14],[22],[24]
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[16]	6,160
Ending balance		$ 4,000	[17]	$ 6,160	[16]
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.69%	[13]	9.75%	[15]
Spread		6%	[13]	6%	[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	$ 1,140
Ending balance		$ 1,140	[13]	$ 1,140	[15]
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		8%		8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 4,819
Ending balance		4,819		$ 4,819
Investment, Identifier [Axis]: Cody Pools, Inc., Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0
Amount of Unrealized Gain/(Loss)		3,570
Amount of Interest, Fees or Dividends Credited to Income		1,219
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[16],[25]	14,550
Gross Additions		3,570
Gross Reductions		0
Ending balance		18,120	[17],[26]	$ 14,550	[16],[25]
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15]			15.38%
Spread	[15]			10.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	273
Ending balance		$ 0	[12]	$ 273	[15]
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1.1
Schedule of Investments [Line Items]
Total Rate		12.50%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		2
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		$ 0
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1.2
Schedule of Investments [Line Items]
Total Rate				15.38%
Spread				10.50%
Amount of Realized Gain/(Loss)				$ 0
Amount of Unrealized Gain/(Loss)				11
Amount of Interest, Fees or Dividends Credited to Income				20
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 273		(6)
Gross Additions				1,033
Gross Reductions				754
Ending balance				$ 273		(6)
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%		15.38%	[15]
Spread	[15]			10.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	$ 6,882
Ending balance		$ 7,111		$ 6,882	[15]
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		12.50%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		22
Amount of Interest, Fees or Dividends Credited to Income		562
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0
Gross Additions		7,872
Gross Reductions		761
Ending balance		7,111		$ 0
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2.2
Schedule of Investments [Line Items]
Total Rate				15.38%
Spread				10.50%
Amount of Realized Gain/(Loss)				$ 0
Amount of Unrealized Gain/(Loss)				(30)
Amount of Interest, Fees or Dividends Credited to Income				963
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 6,882		7,187
Gross Additions				30
Gross Reductions				335
Ending balance				6,882		7,187
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Spread		10.50%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		(11)
Amount of Interest, Fees or Dividends Credited to Income		26
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		273
Gross Additions		14
Gross Reductions		287
Ending balance		$ 0		273
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Spread		10.50%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		(96)
Amount of Interest, Fees or Dividends Credited to Income		500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		6,882
Gross Additions		0
Gross Reductions		6,882
Ending balance		0		6,882
Investment, Identifier [Axis]: Cody Pools, Inc.,Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)				0
Amount of Unrealized Gain/(Loss)				2,640
Amount of Interest, Fees or Dividends Credited to Income				1,004
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		14,550		11,910
Gross Additions				2,640
Gross Reductions				0
Ending balance				14,550		11,910
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)				0
Amount of Unrealized Gain/(Loss)				10
Amount of Interest, Fees or Dividends Credited to Income				349
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,290	[16]	2,280
Gross Additions				10
Gross Reductions				0
Ending balance				2,290	[16]	2,280
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0
Amount of Unrealized Gain/(Loss)		360
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		600
Gross Reductions		0
Ending balance		600		0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0
Amount of Unrealized Gain/(Loss)		(370)
Amount of Interest, Fees or Dividends Credited to Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,290
Gross Additions		0
Gross Reductions		370
Ending balance		1,920		2,290
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		12		12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0		0
Gross Additions		400		400
Gross Reductions		400		400
Ending balance		$ 0	[12]	$ 0		0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%		12%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(41)		0
Amount of Interest, Fees or Dividends Credited to Income		471		761
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		5,729		6,007
Gross Additions		34		37
Gross Reductions		356		315
Ending balance		5,407		5,729		6,007
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)		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		1,863
Gross Reductions		0
Ending balance		$ 1,863		0
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.50%
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	[12]	0
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		0
Amount of Interest, Fees or Dividends Credited to Income		69
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0
Gross Additions		4,175
Gross Reductions		0
Ending balance		$ 4,175		$ 0
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.52%	[11],[13],[38]	12.56%	[14],[15],[39]
Spread		8%	[11],[13],[38]	8%	[14],[15],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[39]	$ 3,851
Ending balance		$ 4,040	[11],[13],[38]	$ 3,851	[14],[15],[39]
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.52%	[11],[13]	12.56%	[14],[15]
Spread		8%	[11],[13]	8%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 14,421
Ending balance		14,797	[11],[13]	$ 14,421	[14],[15]
Investment, Identifier [Axis]: Construction Supply Investments, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]	21,165
Ending balance		23,135	[11]	21,165	[14],[16]
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		38		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		588	[29],[30],[31]	710
Gross Additions		0		0
Gross Reductions		20		122
Ending balance		568	[17],[27],[32],[33]	588	[29],[30],[31]	710
Investment, Identifier [Axis]: DMA Industries, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,820
Ending balance		$ 1,920		$ 1,820
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12%		12%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 5,300
Ending balance		$ 4,700		$ 5,300
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class A Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		8%	[11]	8%	[14]
PIK Rate		8%	[11]	8%	[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	$ 380
Ending balance		$ 260	[11]	$ 380	[14]
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class AA Preferred Member Units (non-voting)
Schedule of Investments [Line Items]
Total Rate		10%	[11],[17]	10%	[14],[16]
PIK Rate		10%	[11],[17]	10%	[14],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]	$ 1,161
Ending balance		1,283	[11],[17]	$ 1,161	[14],[16]
Investment, Identifier [Axis]: DTE Enterprises, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[14],[15]			7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	(1)
Ending balance	[14],[15]			$ (1)
Investment, Identifier [Axis]: DTE Enterprises, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[14],[15]			12.24%
Spread	[14],[15]			7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	5,978
Ending balance	[14],[15]			$ 5,978
Investment, Identifier [Axis]: Dalton US Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	14
Ending balance	[14]			$ 14
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	60
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[15]			11.90%
Spread	[14],[15]			8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	78
Ending balance	[14],[15]			$ 78
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread	[14],[15]			8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	(5)
Ending balance	[14],[15]			$ (5)
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[14],[15]			12.56%
Spread	[14],[15]			8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	1,020
Ending balance	[14],[15]			$ 1,020
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)		(290)		10
Amount of Interest, Fees or Dividends Credited to Income		0		11
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		300	[16]	290
Gross Additions		0		10
Gross Reductions		290		0
Ending balance		$ 10		$ 300	[16]	290
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		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		4		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		25		0
Gross Additions		89		25
Gross Reductions		65		0
Ending balance		$ 49		$ 25		0
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		7.50%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(14)		20
Amount of Interest, Fees or Dividends Credited to Income		107		98
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		865		852
Gross Additions		22		43
Gross Reductions		43		30
Ending balance		844		865		852
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		50		50
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,459	[16]	2,459
Gross Additions		0		0
Gross Reductions		0		0
Ending balance		$ 2,459	[17]	$ 2,459	[16]	2,459
Investment, Identifier [Axis]: Digital Products Holdings LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.38%	[13]	14.13%	[15]
Spread		10%	[13]	10%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(17)		0
Amount of Interest, Fees or Dividends Credited to Income		586		510
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		3,878	[15]	4,186
Gross Additions		0		22
Gross Reductions		205		330
Ending balance		3,673	[13]	3,878	[15]	4,186
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)		(380)		970
Amount of Interest, Fees or Dividends Credited to Income		43		343
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		5,558	[16]	4,590
Gross Additions		0		968
Gross Reductions		378		0
Ending balance		$ 5,180	[17]	$ 5,558	[16]	4,590
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		14%
Spread	[15]			11%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(2)		5
Amount of Interest, Fees or Dividends Credited to Income		13		42
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0	[15]	(7)
Gross Additions		227		757
Gross Reductions		10		750
Ending balance		$ 217		$ 0	[15]	(7)
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14%		15.13%	[15]
Spread	[15]			11%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(19)		46
Amount of Interest, Fees or Dividends Credited to Income		730		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		5,352	[15]	0
Gross Additions		19		5,352
Gross Reductions		369		0
Ending balance		5,002		$ 5,352	[15]	0
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Spread				11%
Amount of Realized Gain/(Loss)				$ 0
Amount of Unrealized Gain/(Loss)				(54)
Amount of Interest, Fees or Dividends Credited to Income				661
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0		4,705
Gross Additions				0
Gross Reductions				4,705
Ending balance				0		4,705
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		0	[11]	0	[14]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	128
Ending balance		60	[11]	128	[14]
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		$ 0	[11]	$ 0	[14]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.45%	[11],[13]	9.18%	[14],[15]
Spread		5%	[11],[13]	4.50%	[14],[15]
PIK Rate		10.45%	[11],[13]	9.18%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 1,717
Ending balance		$ 1,912	[11],[13]	$ 1,717	[14],[15]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.45%	[11],[13]	11.18%	[14],[15]
Spread		7%	[11],[13]	6.50%	[14],[15]
PIK Rate		12.45%	[11],[13]	11.18%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 1,642
Ending balance		1,859	[11],[13]	$ 1,642	[14],[15]
Investment, Identifier [Axis]: EPIC Y-Grade Services, LP, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7],[15]			10.70%
Spread	[7],[15]			6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]	6,156
Ending balance	[7],[15]			$ 6,156
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		497
Ending balance		390		497
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[25]	102
Ending balance		$ 109	[26]	$ 102	[25]
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6%	[12],[13]	6%	[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	$ (1)
Ending balance		$ 0	[12],[13]	$ (1)	[15]
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%		12%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 1,192
Ending balance		$ 1,200		$ 1,192
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		9%		9%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 411
Ending balance		$ 409		$ 411
Investment, Identifier [Axis]: Emerald Technologies Acquisition Co, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.79%	[8],[13]	10.67%	[7],[15]
Spread		6.25%	[8],[13]	6.25%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]	$ 2,328
Ending balance		$ 2,175	[8],[13]	$ 2,328	[7],[15]
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[15]			11.68%
Spread		5.50%	[11],[12],[13]	6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 41
Ending balance		$ 0	[11],[12],[13]	$ 41	[14],[15]
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.98%	[11],[13]	10.92%	[14],[15]
Spread		6.50%	[11],[13]	6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 5,159
Ending balance		5,095	[11],[13]	$ 5,159	[14],[15]
Investment, Identifier [Axis]: Escalent, Inc., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	$ 190
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (9)
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	13.45%
Spread	[11],[13]	8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 6,924
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.61%	[11],[13]	10.67%	[14],[15],[25]
Spread		7%	[11],[13]	7%	[14],[15],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[25]	$ 292
Ending balance		$ 302	[11],[13]	$ 292	[14],[15],[25]
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.61%	[11],[13]	10.67%	[14],[15],[25]
Spread		7%	[11],[13]	7%	[14],[15],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[25]	$ 3,507
Ending balance		$ 3,614	[11],[13]	$ 3,507	[14],[15],[25]
Investment, Identifier [Axis]: Fidelity Government Portfolio Class III Fund
Schedule of Investments [Line Items]
Total Rate		5.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[40]	$ 3,188
Investment, Identifier [Axis]: First American Treasury Obligations Fund Class Z
Schedule of Investments [Line Items]
Total Rate		5.23%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[41]	$ 17,656
Investment, Identifier [Axis]: Flame King Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)				0
Amount of Unrealized Gain/(Loss)				1,800
Amount of Interest, Fees or Dividends Credited to Income				538
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		4,400	[16]	2,600
Gross Additions				1,800
Gross Reductions				0
Ending balance		$ 6,970	[17]	$ 4,400	[16]	2,600
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15]			10.75%
Spread		6.50%		6.50%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(15)		15
Amount of Interest, Fees or Dividends Credited to Income		121		167
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,900	[15]	1,581
Gross Additions		15		319
Gross Reductions		1,915		0
Ending balance		$ 0		$ 1,900	[15]	1,581
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[15]			13.25%
Spread		9%		9%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(123)		123
Amount of Interest, Fees or Dividends Credited to Income		478		706
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		5,300	[15]	5,145
Gross Additions		123		155
Gross Reductions		5,423		0
Ending balance		0		$ 5,300	[15]	5,145
Investment, Identifier [Axis]: Flip Electronics LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[15]			11.21%
Spread	[14],[15]			7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	818
Ending balance	[14],[15]			$ 818
Investment, Identifier [Axis]: Flip Electronics LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[14],[15]			12.19%
Spread	[14],[15]			7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	12,327
Ending balance	[14],[15]			$ 12,327
Investment, Identifier [Axis]: Freeport Financial Funds, 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		(57)
Amount of Interest, Fees or Dividends Credited to Income		598		421
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		5,848	[16],[29],[30],[31]	7,231
Gross Additions		0		0
Gross Reductions		2,143		1,383
Ending balance		3,705	[17],[27],[32],[33]	5,848	[16],[29],[30],[31]	7,231
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)		1,080		40
Amount of Interest, Fees or Dividends Credited to Income		200		144
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,790		1,750
Gross Additions		1,080		40
Gross Reductions		0		0
Ending balance		$ 2,870	[17]	$ 1,790		1,750
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		8%		9%
Amount of Realized Gain/(Loss)				$ 0
Amount of Unrealized Gain/(Loss)				(26)
Amount of Interest, Fees or Dividends Credited to Income				329
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 2,836		3,136
Gross Additions				26
Gross Reductions				326
Ending balance		$ 2,336		2,836		3,136
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		8%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		(25)
Amount of Interest, Fees or Dividends Credited to Income		263
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,836
Gross Additions		25
Gross Reductions		525
Ending balance		2,336		2,836
Investment, Identifier [Axis]: GFG Group, LLC., Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[16]	1,790
Ending balance	[16]			$ 1,790
Investment, Identifier [Axis]: GFG Group, LLC., Secured Debt
Schedule of Investments [Line Items]
Total Rate				9%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,836
Ending balance				$ 2,836
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		(860)
Amount of Interest, Fees or Dividends Credited to Income		90		1,244
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		21,890	[16]	22,750
Gross Additions		0		0
Gross Reductions		0		860
Ending balance		$ 21,890		$ 21,890	[16]	22,750
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.48%		10.12%
Spread		6%		6%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		3		6
Amount of Interest, Fees or Dividends Credited to Income		88		7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		330		0
Gross Additions		852		330
Gross Reductions		0		0
Ending balance		$ 1,182		$ 330		0
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.48%		12.12%
Spread		8%		8%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(50)		(32)
Amount of Interest, Fees or Dividends Credited to Income		2,696		1,972
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		19,943		19,152
Gross Additions		51		824
Gross Reductions		50		33
Ending balance		19,944		19,943		19,152
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)		11,460		290
Amount of Interest, Fees or Dividends Credited to Income		1,491		224
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		12,720	[16]	12,430
Gross Additions		11,460		290
Gross Reductions		0		0
Ending balance		$ 24,180		$ 12,720	[16]	12,430
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.50%	[12],[13],[19]	8.50%	[15]
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],[13],[19]	$ 0	[15]	0
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.50%	[13],[19]	11.50%	[15]
Spread		7.50%	[13],[19]	8.50%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(88)		272
Amount of Interest, Fees or Dividends Credited to Income		1,727		113
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		16,020	[15]	0
Gross Additions		88		16,020
Gross Reductions		2,588		0
Ending balance		13,520	[13],[19]	$ 16,020	[15]	0
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread				7.50%
Amount of Realized Gain/(Loss)				$ 0
Amount of Unrealized Gain/(Loss)				(17)
Amount of Interest, Fees or Dividends Credited to Income				559
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0		5,400
Gross Additions				0
Gross Reductions				5,400
Ending balance				0		5,400
Investment, Identifier [Axis]: Garyline, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	$ 210
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (76)
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.22%
Spread	[11],[13]	6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 9,384
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
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)		(330)		(450)
Amount of Interest, Fees or Dividends Credited to Income		0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		950		0
Gross Additions		0		1,400
Gross Reductions		330		450
Ending balance		$ 620		$ 950		0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		9.50%	[12],[13]	9.50%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		0		2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0	[15]	64
Gross Additions		0		0
Gross Reductions		0		64
Ending balance		$ 0	[12],[13]	$ 0	[15]	64
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%		12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 571
Ending balance		$ 571		$ 571
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		12.50%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		0
Amount of Interest, Fees or Dividends Credited to Income		73
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		571
Gross Additions		0
Gross Reductions		0
Ending balance		571		$ 571
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2.2
Schedule of Investments [Line Items]
PIK Rate				6.25%
Amount of Realized Gain/(Loss)				$ (1,455)
Amount of Unrealized Gain/(Loss)				962
Amount of Interest, Fees or Dividends Credited to Income				126
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0		2,429
Gross Additions				0
Gross Reductions				2,429
Ending balance				$ 0		2,429
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate				12.50%
Amount of Realized Gain/(Loss)				$ 0
Amount of Unrealized Gain/(Loss)				(29)
Amount of Interest, Fees or Dividends Credited to Income				19
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 571		0
Gross Additions				600
Gross Reductions				29
Ending balance				$ 571		0
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		14.34%	[11],[13],[23]	14.34%	[14],[15]
Spread		9.50%	[11],[13],[23]	9.50%	[14],[15]
PIK Rate		14.34%	[11],[13],[23]	2%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 175
Ending balance		$ 186	[11],[13],[23]	$ 175	[14],[15]
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.34%	[11],[13],[23]	14.34%	[14],[15]
Spread		9.50%	[11],[13],[23]	9.50%	[14],[15]
PIK Rate		14.34%	[11],[13],[23]	2%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 1,731
Ending balance		$ 1,849	[11],[13],[23]	$ 1,731	[14],[15]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.50%	[11],[12],[13]	6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ (18)
Ending balance		$ (14)	[11],[12],[13]	$ (18)	[14],[15]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.86%
Spread		6.50%	[11],[13]	6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ (18)
Ending balance		$ 1,995	[11],[13]	$ (18)	[14],[15]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.86%	[11],[13]	10.62%	[14],[15]
Spread		6.50%	[11],[13]	6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 4,975
Ending balance		4,925	[11],[13]	$ 4,975	[14],[15]
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 3, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0		779
Amount of Unrealized Gain/(Loss)		156		254
Amount of Interest, Fees or Dividends Credited to Income		4		(50)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		4,331		4,712
Gross Additions		403		587
Gross Reductions		509		968
Ending balance		4,225		4,331		4,712
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 MH, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		2,223		0
Amount of Unrealized Gain/(Loss)		(952)		2,389
Amount of Interest, Fees or Dividends Credited to Income		142		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		7,552	[29],[30],[31]	3,971
Gross Additions		2,796		3,581
Gross Reductions		4,298		0
Ending balance		6,050	[17],[27],[32],[33]	7,552	[29],[30],[31]	3,971
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	[29],[30],[31]	4,331
Ending balance		4,225	[27],[32],[33]	4,331	[29],[30],[31]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[16]	4,370
Ending balance		4,370		4,370	[16]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[25]	230
Ending balance		$ 230	[26]	$ 230	[25]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.65%	[13]	10.13%	[15]
Spread		6%	[13]	6%	[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	$ 796
Ending balance		$ 494	[13]	$ 796	[15]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%		9%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 8,200
Ending balance		$ 9,744		$ 8,200
Investment, Identifier [Axis]: Hybrid Promotions, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.91%	[11],[13]	12.07%	[14]
Spread		8.25%	[11],[13]	8.25%	[14]
PIK Rate	[11],[13]	2%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	$ 6,826
Ending balance		7,313	[11],[13]	$ 6,826	[14]
Investment, Identifier [Axis]: IG Investor, 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		3,774
Gross Reductions		174
Ending balance		3,600		0
Investment, Identifier [Axis]: IG Investor, 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		173
Gross Reductions		200
Ending balance		$ (27)	[12]	0
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		0
Amount of Interest, Fees or Dividends Credited to Income		692
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0
Gross Additions		9,179
Gross Reductions		110
Ending balance		$ 9,069		$ 0
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[15],[42]			10.17%
Spread		5.75%	[8],[12],[13]	5.75%	[7],[15],[42]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15],[42]	$ 465
Ending balance		$ 0	[8],[12],[13]	$ 465	[7],[15],[42]
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.96%	[8],[13]	10.17%	[7],[15]
Spread		5.50%	[8],[13]	5.75%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]	$ 8,291
Ending balance		$ 6,266	[8],[13]	$ 8,291	[7],[15]
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[8],[13]	10.96%
Spread	[8],[13]	5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[13]	$ 1,942
Investment, Identifier [Axis]: INW Manufacturing, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.36%	[8],[13]	10.48%	[7],[15]
Spread		5.75%	[8],[13]	5.75%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]	$ 5,972
Ending balance		$ 5,325	[8],[13]	$ 5,972	[7],[15]
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[13]	16.59%
Spread	[13]	9%
PIK Rate	[13]	2%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[13]	$ 201
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[13]	16.59%
Spread	[13]	9%
PIK Rate	[13]	2%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[13]	$ 174
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[13]	15.59%
Spread	[13]	8%
PIK Rate	[13]	2%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[13]	$ 842
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[13]	17.59%
Spread	[13]	10%
PIK Rate	[13]	2%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[13]	$ 848
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[10]	523
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	$ 550
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13],[43]	12.41%
Spread	[11],[13],[43]	7%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13],[43]	$ 786
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.45%
Spread	[11],[13]	7%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 10,318
Investment, Identifier [Axis]: Implus Footcare, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14.25%	[11],[13]	13.98%	[14],[15]
Spread		7.75%	[11],[13]	7.75%	[14],[15]
PIK Rate		1%	[11],[13]	1.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 15,961
Ending balance		15,816	[11],[13]	$ 15,961	[14],[15]
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0
Amount of Unrealized Gain/(Loss)		(220)
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		6,540
Gross Reductions		220
Ending balance		6,320	[11]	0
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	0
Ending balance	[14]			$ 0
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Preferred Stock (non-voting) 1
Schedule of Investments [Line Items]
Total Rate	[14]			6%
PIK Rate	[14]			6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	0
Ending balance	[14]			$ 0
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Preferred Stock (non-voting) 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	0
Ending balance	[14]			$ 0
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14]			14.42%
Spread	[14]			10%
PIK Rate	[14]			14.42%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	459
Ending balance	[14]			$ 459
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[14],[22]			6%
PIK Rate	[14],[22]			6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[22]	4,515
Ending balance	[14],[22]			$ 4,515
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	0
Ending balance	[14]			0
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[25]	1,400
Ending balance		$ 1,610	[11],[26]	$ 1,400	[14],[25]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Total Rate		10%	[11],[17],[26]	10%	[14],[16],[25]
PIK Rate		10%	[11],[17],[26]	10%	[14],[16],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[25]	$ 338
Ending balance		$ 415	[11],[17],[26]	$ 338	[14],[16],[25]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Total Rate		20%	[11],[17],[26]	20%	[14],[16],[25]
PIK Rate		20%	[11],[17],[26]	20%	[14],[16],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16],[25]	$ 217
Ending balance		$ 279	[11],[17],[26]	$ 217	[14],[16],[25]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.22%	[11],[13],[44]	11.50%	[14],[15]
Spread		6.75%	[11],[13],[44]	6.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 387
Ending balance		$ 752	[11],[13],[44]	$ 387	[14],[15]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.22%	[11],[13]	11.50%	[14],[15]
Spread		6.75%	[11],[13]	6.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 10,871
Ending balance		11,436	[11],[13]	$ 10,871	[14],[15]
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 1,000
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 4,314
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.21%
Spread		5.75%	[11],[13]	5.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ (48)
Ending balance		$ 1,881	[11],[13]	$ (48)	[14],[15]
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.21%	[11],[13]	10.23%	[14],[15]
Spread		5.75%	[11],[13]	5.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 10,742
Ending balance		9,690	[11],[13]	$ 10,742	[14],[15]
Investment, Identifier [Axis]: Insight Borrower Corporation, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	$ 239
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (40)
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (33)
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.65%
Spread	[11],[13]	6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 8,287
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	$ 190
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13],[45]	13.53%
Spread	[11],[13],[45]	8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13],[45]	$ 664
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	13.55%
Spread	[11],[13]	8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 6,144
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	13.55%
Spread	[11],[13]	8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 1,237
Investment, Identifier [Axis]: Integral Energy Services, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0
Amount of Unrealized Gain/(Loss)		(1,300)
Amount of Interest, Fees or Dividends Credited to Income		50
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,490
Gross Additions		0
Gross Reductions		1,300
Ending balance		$ 190	[11]	1,490
Investment, Identifier [Axis]: Integral Energy Services, Preferred Equity
Schedule of Investments [Line Items]
Total Rate	[11]	10%
PIK Rate	[11]	10%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		85
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		350
Gross Reductions		0
Ending balance		$ 350	[11]	0
Investment, Identifier [Axis]: Integral Energy Services, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[11],[13]	13.16%
Spread	[11],[13]	7.50%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		(787)
Amount of Interest, Fees or Dividends Credited to Income		2,773
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		18,425
Gross Additions		94
Gross Reductions		2,287
Ending balance		16,232	[11],[13]	18,425
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		$ 0	[11]	$ 0	[14]
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.48%	[11],[23],[46]	14.22%	[14],[47]
Spread		10%	[11],[23],[46]	10%	[14],[47]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[47]	$ 1,682
Ending balance		$ 1,781	[11],[23],[46]	$ 1,682	[14],[47]
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.46%	[11],[21],[23]	12.07%	[14],[15],[22]
Spread		7%	[11],[21],[23]	7%	[14],[15],[22]
PIK Rate		12.46%	[11],[21],[23]	1%	[14],[15],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[22]	$ 1,085
Ending balance		$ 433	[11],[21],[23]	$ 1,085	[14],[15],[22]
Investment, Identifier [Axis]: Intermedia Holdings, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.47%	[8],[13]	10.38%	[7],[15]
Spread		6%	[8],[13]	6%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]	$ 4,342
Ending balance		$ 5,370	[8],[13]	$ 4,342	[7],[15]
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%	[11],[13]	10.14%	[14],[15]
Spread		6.50%	[11],[13]	6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 622
Ending balance		$ 509	[11],[13]	$ 622	[14],[15]
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%	[11],[13]	10.17%	[14],[15]
Spread		6.50%	[11],[13]	6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 17,148
Ending balance		16,515	[11],[13]	$ 17,148	[14],[15]
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		449
Ending balance		$ 670		$ 449
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.50%		12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 1,108
Ending balance		$ 1,108		$ 1,108
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%		12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 771
Ending balance		$ 722		$ 771
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.50%		12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 2,236
Ending balance		$ 2,236		$ 2,236
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		13.50%		12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 4,813
Ending balance		$ 4,815		$ 4,813
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate		13.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 2,525
Investment, Identifier [Axis]: Isagenix International, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8]	$ 0
Investment, Identifier [Axis]: Isagenix International, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.04%	[8],[13]	9.93%	[7],[15],[22]
Spread		5.50%	[8],[13]	7.75%	[7],[15],[22]
PIK Rate	[8],[13]	8.54%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15],[22]	$ 1,537
Ending balance		2,301	[8],[13]	$ 1,537	[7],[15],[22]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	240
Ending balance		$ 140	[11]	$ 240	[14]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13],[48]	11.64%
Spread		6%	[11],[13],[48]	6%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ (11)
Ending balance		$ 261	[11],[13],[48]	$ (11)	[14],[15]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.61%	[11],[13]	10.73%	[14],[15]
Spread		6%	[11],[13]	6%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 3,059
Ending balance		3,000	[11],[13]	$ 3,059	[14],[15]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Preferred Equity
Schedule of Investments [Line Items]
Total Rate	[14],[16]			12%
PIK Rate	[14],[16]			12%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]	1,247
Ending balance		$ 2,190	[11]	$ 1,247	[14],[16]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.46%	[11]	12.23%	[14],[15]
Spread		7%	[11]	7.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 1,000
Ending balance		$ 1,675	[11]	$ 1,000	[14],[15]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.46%	[11]	12.23%	[14],[15]
Spread		7%	[11]	7.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 4,126
Ending balance		3,948	[11]	$ 4,126	[14],[15]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]	0
Ending balance		$ 0	[8]	$ 0	[7]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		23.63%	[8],[13],[21]	18%	[7]
Spread	[8],[13],[21]	18%
PIK Rate	[8],[13],[21]	23.63%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]	$ 1,935
Ending balance		$ 1,747	[8],[13],[21]	$ 1,935	[7]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		21.63%	[8],[13],[21]	19.75%	[7],[22]
Spread	[8],[13],[21]	16%
PIK Rate		21.63%	[8],[13],[21]	19.75%	[7],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[22]	$ 418
Ending balance		$ 121	[8],[13],[21]	$ 418	[7],[22]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[8],[13],[21]	21.63%
Spread	[8],[13],[21]	16%
PIK Rate	[8],[13],[21]	21.63%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[13],[21]	$ 117
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[16]	620
Ending balance		1,070		$ 620	[16]
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[15]			11.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	0
Ending balance		$ 0	[12]	$ 0	[15]
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15%		15.63%	[15]
Spread	[15]			11.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	$ 1,111
Ending balance		2,690		$ 1,111	[15]
Investment, Identifier [Axis]: JorVet Holdings, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[16]	1,193
Ending balance		$ 1,193	[17]	$ 1,193	[16]
Investment, Identifier [Axis]: JorVet Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12%		12%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 2,802
Ending balance		$ 2,814		$ 2,802
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		14.75%	[11],[13]	12%	[14],[15]
Spread		9.25%	[11],[13]	7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 1,244
Ending balance		$ 1,180	[11],[13]	$ 1,244	[14],[15]
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.75%	[11],[13]	12%	[14],[15]
Spread		9.25%	[11],[13]	7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 8,778
Ending balance		8,475	[11],[13]	$ 8,778	[14],[15]
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)		(30)		98
Amount of Interest, Fees or Dividends Credited to Income		29		28
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		713	[16],[25]	615
Gross Additions		0		99
Gross Reductions		30		1
Ending balance		683	[26]	713	[16],[25]	615
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)		620		(1,280)
Amount of Interest, Fees or Dividends Credited to Income		0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,800		3,080
Gross Additions		620		0
Gross Reductions		0		1,280
Ending balance		$ 2,420		$ 1,800		3,080
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%		11.50%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(18)		18
Amount of Interest, Fees or Dividends Credited to Income		668		630
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		5,093		5,040
Gross Additions		58		53
Gross Reductions		218		0
Ending balance		$ 4,933		$ 5,093		5,040
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		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		86		88
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		961		970
Gross Additions		0		0
Gross Reductions		10		9
Ending balance		$ 951		$ 961		970
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.71%	[11],[13]	11.21%	[14],[15]
Spread		7.25%	[11],[13]	7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 7,945
Ending balance		$ 7,960	[11],[13]	$ 7,945	[14],[15]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.71%	[11],[13]	11.67%	[14],[15]
Spread		7.25%	[11],[13]	7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 6,119
Ending balance		$ 5,246	[11],[13]	$ 6,119	[14],[15]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.71%	[11],[13]	11.67%	[14],[15]
Spread		7.25%	[11],[13]	7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 8,820
Ending balance		$ 0	[11],[13]	$ 8,820	[14],[15]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.71%
Spread	[11],[13]	7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 871
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 5
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.71%
Spread	[11],[13]	7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 8,822
Investment, Identifier [Axis]: LLFlex, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.54%	[11],[13]	12.74%	[14],[15]
Spread		9%	[11],[13]	9%	[14],[15]
PIK Rate	[11],[13]	1%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 4,833
Ending balance		$ 4,417	[11],[13]	$ 4,833	[14],[15]
Investment, Identifier [Axis]: Lightbox Holdings, L.P., Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.62%	[8]	9.73%	[7]
Spread		5%	[8]	5%	[7]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]	$ 5,622
Ending balance		$ 5,592	[8]	$ 5,622	[7]
Investment, Identifier [Axis]: Logix Acquisition Company, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.25%	[11],[13]	10.13%	[14],[15]
Spread		4.75%	[11],[13]	5.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 7,843
Ending balance		$ 9,069	[11],[13]	$ 7,843	[14],[15]
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.46%	[8],[13]	10.42%	[7],[15]
Spread		6%	[8],[13]	6%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]	$ 8,359
Ending balance		$ 2,803	[8],[13]	$ 8,359	[7],[15]
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.46%	[8],[13]	10.42%	[7],[15]
Spread		6%	[8],[13]	6%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]	$ 7,876
Ending balance		$ 3,925	[8],[13]	$ 7,876	[7],[15]
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[8],[13]	11.46%
Spread	[8],[13]	6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[13]	$ 3,464
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[8],[13]	11.46%
Spread	[8],[13]	6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[13]	$ 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)		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		0		0
Gross Additions		80		0
Gross Reductions		0		0
Ending balance		80		0		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
Investment, Identifier [Axis]: MH Corbin Holding LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%	[23]	13%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		307		175
Amount of Interest, Fees or Dividends Credited to Income		190		250
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,137		1,484
Gross Additions		308		177
Gross Reductions		189		524
Ending balance		$ 1,256	[23]	$ 1,137		1,484
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[15],[49]			11.79%
Spread		6.75%	[11],[12],[13]	7.25%	[14],[15],[49]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[49]	$ 3,426
Ending balance		$ 0	[11],[12],[13]	$ 3,426	[14],[15],[49]
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.28%	[11],[13]	11.09%	[14],[15]
Spread		6.75%	[11],[13]	7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 16,959
Ending balance		16,721	[11],[13]	$ 16,959	[14],[15]
Investment, Identifier [Axis]: Market Force Information, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		(4,160)		0
Amount of Unrealized Gain/(Loss)		4,160		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		4,160		0
Gross Reductions		4,160		0
Ending balance		$ 0		$ 0		0
Investment, Identifier [Axis]: Market Force Information, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[22]			12%
Spread		11%
PIK Rate	[22]			12%
Amount of Realized Gain/(Loss)		$ (6,465)		$ 0
Amount of Unrealized Gain/(Loss)		6,060		(1,831)
Amount of Interest, Fees or Dividends Credited to Income		0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		403	[22]	2,234
Gross Additions		6,060		0
Gross Reductions		6,463		1,831
Ending balance		0		403	[22]	2,234
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		113
Ending balance				$ 113
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Preferred Equity
Schedule of Investments [Line Items]
Total Rate	[16]			8%
PIK Rate	[16]			8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[16]	441
Ending balance	[16]			$ 441
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		(1)
Ending balance				$ (1)
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				12.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,697
Ending balance				$ 1,697
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 110
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Total Rate	[17]	8%
PIK Rate	[17]	8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[17]	$ 443
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[12]	$ 0
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 1,707
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.25%	[11],[12],[13]	6.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ (7)
Ending balance		$ (6)	[11],[12],[13]	$ (7)	[14],[15]
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.46%	[11],[13]	9.86%	[14],[15]
Spread		6%	[11],[13]	6.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 3,034
Ending balance		$ 2,671	[11],[13]	$ 3,034	[14],[15]
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.52%	[11],[13]	10.66%	[14],[15]
Spread		7%	[11],[13]	6.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 18,338
Ending balance		17,524	[11],[13]	$ 18,338	[14],[15]
Investment, Identifier [Axis]: Mini Melts of America, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	$ 300
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (28)
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (10)
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	10.64%
Spread	[11],[13]	5.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 3,149
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.64%
Spread	[11],[13]	7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 3,146
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[29],[50]	256
Ending balance		$ 197	[11],[27],[28]	$ 256	[14],[29],[50]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[27],[28]	14%
Spread	[14],[15],[29],[50]			7%
PIK Rate	[11],[27],[28]	4%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[29],[50]	$ (19)
Ending balance		$ 1,133	[11],[27],[28]	$ (19)	[14],[15],[29],[50]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14%	[11],[27],[28]	11.73%	[14],[15],[29],[50]
Spread	[14],[15],[29],[50]			7%
PIK Rate	[11],[27],[28]	4%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[29],[50]	$ 3,139
Ending balance		$ 3,184	[11],[27],[28]	$ 3,139	[14],[15],[29],[50]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		14%	[11],[27],[28]	11.73%	[14],[15],[29],[50]
Spread	[14],[15],[29],[50]			7%
PIK Rate	[11],[27],[28]	4%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[29],[50]	$ 4,906
Ending balance		4,957	[11],[27],[28]	$ 4,906	[14],[15],[29],[50]
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)		890		3,500
Amount of Interest, Fees or Dividends Credited to Income		1,131		1,050
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		5,708	[16]	2,210
Gross Additions		890		3,498
Gross Reductions		0		0
Ending balance		6,598	[17]	5,708	[16]	2,210
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		1		1
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	[12]	$ 0		0
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 2
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		146		152
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,436		1,595
Gross Additions		0		0
Gross Reductions		0		159
Ending balance		1,436		$ 1,436		1,595
Investment, Identifier [Axis]: NTM Acquisition Corp., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7],[15]			9.50%
Spread	[7],[15]			6.25%
PIK Rate	[7],[15]			1%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]	3,915
Ending balance	[7],[15]			$ 3,915
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[15],[51]			10.85%
Spread	[14],[15],[51]			8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[51]	1,482
Ending balance	[14],[15],[51]			$ 1,482
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[14],[15]			12.56%
Spread	[14],[15]			8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	19,620
Ending balance	[14],[15]			$ 19,620
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[14]			20%
PIK Rate	[14]			20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	3,065
Ending balance	[14]			$ 3,065
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)		1,310		(723)
Amount of Interest, Fees or Dividends Credited to Income		166		20
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		280	[16]	670
Gross Additions		1,310		333
Gross Reductions		0		723
Ending balance		$ 1,590	[17]	280	[16]	670
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10%
Amount of Realized Gain/(Loss)		$ 0		0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		0		7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0		199
Gross Additions		0		0
Gross Reductions		0		199
Ending balance		$ 0	[12]	$ 0		199
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10%		11%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		708		(188)
Amount of Interest, Fees or Dividends Credited to Income		289		486
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,119		3,311
Gross Additions		729		0
Gross Reductions		413		1,192
Ending balance		$ 2,435		$ 2,119		3,311
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7%	[11],[12],[13]	6.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 0
Ending balance		$ (3)	[11],[12],[13]	$ 0	[14],[15]
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread		7%	[11],[12],[13]	6.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ (23)
Ending balance		$ (12)	[11],[12],[13]	$ (23)	[14],[15]
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.54%	[11],[13]	9.99%	[14],[15]
Spread		7%	[11],[13]	6.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 11,634
Ending balance		$ 10,991	[11],[13]	$ 11,634	[14],[15]
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.52%
Spread	[11],[13]	7%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 3,878
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,290
Ending balance		1,290		1,290
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0		0
Amount of Unrealized Gain/(Loss)		300		(1,370)
Amount of Interest, Fees or Dividends Credited to Income		0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,010		3,380
Gross Additions		300		0
Gross Reductions		0		1,370
Ending balance		2,310		2,010		3,380
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,010
Ending balance		2,310		2,010
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0		0
Amount of Unrealized Gain/(Loss)		0		775
Amount of Interest, Fees or Dividends Credited to Income		0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,290		0
Gross Additions		0		1,290
Gross Reductions		0		0
Ending balance		$ 1,290		$ 1,290		0
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.98%	[13]	10.63%	[15]
Spread		6.50%	[13]	6.50%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(2)		2
Amount of Interest, Fees or Dividends Credited to Income		120		78
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,100	[15]	430
Gross Additions		1		670
Gross Reductions		202		0
Ending balance		$ 899	[13]	$ 1,100	[15]	430
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%		12%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		(1)
Amount of Interest, Fees or Dividends Credited to Income		564		545
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		4,603		4,310
Gross Additions		3		294
Gross Reductions		0		1
Ending balance		4,606		$ 4,603		4,310
Investment, Identifier [Axis]: OVG Business Services, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[14],[15]			10.64%
Spread	[14],[15]			6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 16,368
Ending balance	[14],[15]			$ 16,368
Investment, Identifier [Axis]: Obra Capital, Inc. (f/k/a Vida Capital, Inc.), Secured Debt
Schedule of Investments [Line Items]
Total Rate	[8]	11.47%
Spread	[8]	6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8]	$ 6,039
Investment, Identifier [Axis]: Oneliance, 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		1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		264		264
Gross Additions		18		0
Gross Reductions		0		0
Ending balance		$ 282		$ 264		264
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		16.48%	[13]	15.13%	[15]
Spread		11%	[13]	11%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(7)		0
Amount of Interest, Fees or Dividends Credited to Income		231		190
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,380	[15]	1,374
Gross Additions		6		6
Gross Reductions		47		0
Ending balance		1,339	[13]	1,380	[15]	1,374
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)		1,320		440
Amount of Interest, Fees or Dividends Credited to Income		274		225
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,940	[16],[25]	2,500
Gross Additions		1,320		440
Gross Reductions		0		0
Ending balance		$ 4,260	[17],[26]	$ 2,940	[16],[25]	2,500
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		11%	[12],[13]	11%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		2		0
Amount of Interest, Fees or Dividends Credited to Income		1		5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		(2)	[15]	41
Gross Additions		2		1
Gross Reductions		0		44
Ending balance		$ 0	[12],[13]	$ (2)	[15]	41
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		16.48%	[13]	15.13%	[15]
Spread		11%	[13]	11%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		58		0
Amount of Interest, Fees or Dividends Credited to Income		955		815
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		5,814	[15]	5,937
Gross Additions		86		27
Gross Reductions		390		150
Ending balance		5,510	[13]	5,814	[15]	5,937
Investment, Identifier [Axis]: Other 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)		(1,541)
Amount of Unrealized Gain/(Loss)		649
Amount of Interest, Fees or Dividends Credited to Income		(151)
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]: Other 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)		1,541
Amount of Unrealized Gain/(Loss)		(649)
Amount of Interest, Fees or Dividends Credited to Income		(94)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		(6,392)
Gross Additions		6,392
Gross Reductions		0
Ending balance		$ 0		$ (6,392)
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13],[27],[28],[52]	12.80%
Spread		7.25%	[11],[13],[27],[28],[52]	7.25%	[15],[29],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[29],[53]	$ (12)
Ending balance		$ 196	[11],[13],[27],[28],[52]	$ (12)	[15],[29],[53]
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.88%	[11],[13],[27],[28]	11.80%	[15],[29],[53]
Spread		7.25%	[11],[13],[27],[28]	7.25%	[15],[29],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[29],[53]	$ 1,828
Ending balance		$ 1,720	[11],[13],[27],[28]	$ 1,828	[15],[29],[53]
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[15]			10.26%
Spread		5.75%	[11],[12],[13]	5.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 70
Ending balance		$ 0	[11],[12],[13]	$ 70	[14],[15]
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.24%	[11],[13],[54]	9.96%	[14],[15],[55]
Spread		5.75%	[11],[13],[54]	5.75%	[14],[15],[55]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[55]	$ 349
Ending balance		$ 421	[11],[13],[54]	$ 349	[14],[15],[55]
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.25%	[11],[13]	9.81%	[14],[15]
Spread		5.75%	[11],[13]	5.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 2,317
Ending balance		2,442	[11],[13]	$ 2,317	[14],[15]
Investment, Identifier [Axis]: Pinnacle TopCo, 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		3,135
Gross Reductions		0
Ending balance		$ 3,135		0
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		1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0
Gross Additions		105
Gross Reductions		0
Ending balance		$ 105		0
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		0
Amount of Interest, Fees or Dividends Credited to Income		34
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0
Gross Additions		7,472
Gross Reductions		0
Ending balance		7,472		$ 0
Investment, Identifier [Axis]: Power System Solutions, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	$ 500
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (35)
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (35)
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.12%
Spread	[11],[13]	6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 7,939
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.28%
Spread	[11],[13]	6.85%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 5,970
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.20%
Spread	[11],[13]	6.85%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 570
Investment, Identifier [Axis]: Purge Rite, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	$ 1,302
Investment, Identifier [Axis]: Purge Rite, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (19)
Investment, Identifier [Axis]: Purge Rite, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	13.70%
Spread	[11],[13]	8%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 3,813
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13],[44]	12.22%
Spread		6.75%	[11],[13],[44]	6.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ (11)
Ending balance		$ 745	[11],[13],[44]	$ (11)	[14],[15]
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.21%	[11],[13]	10.56%	[14],[15]
Spread		6.75%	[11],[13]	6.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 11,685
Ending balance		12,089	[11],[13]	$ 11,685	[14],[15]
Investment, Identifier [Axis]: RM Bidder, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	13
Ending balance	[14]			13
Investment, Identifier [Axis]: RM Bidder, LLC, Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[56]	$ 0
Ending balance	[14],[56]			$ 0
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.14%	[8],[13]	8.84%	[7],[15]
Spread		5.50%	[8],[13]	5.50%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]	$ 7,434
Ending balance		$ 7,237	[8],[13]	$ 7,434	[7],[15]
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13],[57]	18.47%
Spread	[11],[13],[57]	6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13],[57]	$ 818
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.88%
Spread	[11],[13]	6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 10,362
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)		(1,650)		420
Amount of Interest, Fees or Dividends Credited to Income		0		62
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,650		0
Gross Additions		0		1,650
Gross Reductions		1,650		0
Ending balance		$ 0		1,650		0
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.50%
Amount of Realized Gain/(Loss)		$ 0		0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		4		5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		(8)	[15]	0
Gross Additions		2		2
Gross Reductions		0		10
Ending balance		$ (6)	[12]	$ (8)	[15]	0
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%		12.50%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(323)		0
Amount of Interest, Fees or Dividends Credited to Income		507		529
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		3,902	[15]	0
Gross Additions		18		3,977
Gross Reductions		499		75
Ending balance		$ 3,421		$ 3,902	[15]	0
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[15]			10.97%
Spread		6.50%	[11],[12],[13]	6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 389
Ending balance		$ 0	[11],[12],[13]	$ 389	[14],[15]
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.16%	[11],[13]	10.32%	[14],[15]
Spread		6.50%	[11],[13]	6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 2,917
Ending balance		$ 4,142	[11],[13]	$ 2,917	[14],[15]
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		14.16%	[11],[13]	10.32%	[14],[15]
Spread		8.50%	[11],[13]	6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 3,967
Ending balance		$ 4,082	[11],[13]	$ 3,967	[14],[15]
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.54%	[11],[13]	13.02%	[14],[15]
Spread		6%	[11],[13]	6.25%	[14],[15]
PIK Rate		2%	[11],[13]	2%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 5,597
Ending balance		$ 6,383	[11],[13]	$ 5,597	[14],[15]
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.54%	[11],[13]	13.02%	[14],[15]
Spread		6%	[11],[13]	6.25%	[14],[15]
PIK Rate		2%	[11],[13]	2%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 8,293
Ending balance		8,984	[11],[13]	$ 8,293	[14],[15]
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)		1,737		690
Amount of Interest, Fees or Dividends Credited to Income		399		216
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		4,550	[16]	3,860
Gross Additions		1,840		690
Gross Reductions		0		0
Ending balance		$ 6,390	[17]	4,550	[16]	3,860
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.25%
Amount of Realized Gain/(Loss)		$ 0		0
Amount of Unrealized Gain/(Loss)		6		0
Amount of Interest, Fees or Dividends Credited to Income		28		78
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0		750
Gross Additions		625		1,250
Gross Reductions		250		2,000
Ending balance		$ 375		$ 0		750
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.47%		9.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 29,929
Ending balance		$ 18,179		$ 29,929
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		12.47%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		161
Amount of Interest, Fees or Dividends Credited to Income		1,278
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0
Gross Additions		18,179
Gross Reductions		0
Ending balance		18,179		$ 0
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2.2
Schedule of Investments [Line Items]
Total Rate				9.50%
Amount of Realized Gain/(Loss)				$ 0
Amount of Unrealized Gain/(Loss)				76
Amount of Interest, Fees or Dividends Credited to Income				2,708
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 29,929		21,200
Gross Additions				10,375
Gross Reductions				1,646
Ending balance				29,929		21,200
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		9.50%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		(134)
Amount of Interest, Fees or Dividends Credited to Income		1,403
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		29,929
Gross Additions		0
Gross Reductions		29,929
Ending balance		0		29,929
Investment, Identifier [Axis]: SIB Holdings, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	183
Ending balance	[14]			$ 183
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[15]			11.01%
Spread	[14],[15]			6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	491
Ending balance	[14],[15]			$ 491
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[14],[15]			11.01%
Spread	[14],[15]			6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	1,803
Ending balance	[14],[15]			$ 1,803
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[14],[15]			11.01%
Spread	[14],[15]			6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	8,974
Ending balance	[14],[15]			$ 8,974
Investment, Identifier [Axis]: SPAU Holdings, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	200
Ending balance		$ 160	[11]	$ 200	[14]
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		8%	[11],[12],[13]	7.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ (18)
Ending balance		$ 0	[11],[12],[13]	$ (18)	[14],[15]
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.72%	[11],[13]	11.06%	[14],[15]
Spread		8%	[11],[13]	7.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 4,975
Ending balance		4,925	[11],[13]	$ 4,975	[14],[15]
Investment, Identifier [Axis]: Savers, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7],[15]			10.34%
Spread	[7],[15]			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]	4,149
Ending balance	[7],[15]			$ 4,149
Investment, Identifier [Axis]: Slick Innovations, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[16]	400
Ending balance		$ 600		$ 400	[16]
Investment, Identifier [Axis]: Slick Innovations, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14%		14%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 3,460
Ending balance		2,860		$ 3,460
Investment, Identifier [Axis]: Sonic Systems International, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)				0
Amount of Unrealized Gain/(Loss)				(94)
Amount of Interest, Fees or Dividends Credited to Income				50
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,490	[14]	1,250
Gross Additions				334
Gross Reductions				94
Ending balance				$ 1,490	[14]	1,250
Investment, Identifier [Axis]: Sonic Systems International, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[14],[15]			11.24%
Spread	[14],[15]			7.50%
Amount of Realized Gain/(Loss)				$ 0
Amount of Unrealized Gain/(Loss)				282
Amount of Interest, Fees or Dividends Credited to Income				1,676
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		18,425	[14],[15]	13,738
Gross Additions				4,687
Gross Reductions				0
Ending balance				18,425	[14],[15]	13,738
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	92
Ending balance		$ 59	[11]	$ 92	[14]
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.46%
Spread		6%	[11],[13]	5.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ (6)
Ending balance		$ 34	[11],[13]	$ (6)	[14],[15]
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.70%	[11],[13]	9.69%	[14],[15]
Spread		6%	[11],[13]	5.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 3,523
Ending balance		2,979	[11],[13]	$ 3,523	[14],[15]
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	[14]	0
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		8.50%	[11],[21]	13.27%	[14]
Spread	[14]			8.50%
PIK Rate	[11],[21]	8.50%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		(1,881)
Amount of Interest, Fees or Dividends Credited to Income		364
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	5,063
Gross Additions		244
Gross Reductions		1,764
Ending balance		3,543	[11],[21]	$ 5,063	[14]
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				13.27%
Spread				8.50%
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		5,063		0
Gross Additions				5,063
Gross Reductions				0
Ending balance				5,063		0
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)				(6,651)
Amount of Unrealized Gain/(Loss)				4,438
Amount of Interest, Fees or Dividends Credited to Income				12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0		0
Gross Additions				6,524
Gross Reductions				6,524
Ending balance				0		0
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)				0
Amount of Unrealized Gain/(Loss)				(391)
Amount of Interest, Fees or Dividends Credited to Income				0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,920		2,145
Gross Additions				166
Gross Reductions				391
Ending balance				1,920		2,145
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0
Amount of Unrealized Gain/(Loss)		(1,920)
Amount of Interest, Fees or Dividends Credited to Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,920
Gross Additions		0
Gross Reductions		1,920
Ending balance		0		1,920
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0
Amount of Unrealized Gain/(Loss)		(141)
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		124
Gross Reductions		124
Ending balance		0		0
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)		(165)
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		165
Gross Reductions		165
Ending balance		$ 0		$ 0
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12%	[23]	12%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(28)		0
Amount of Interest, Fees or Dividends Credited to Income		56		55
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		460		259
Gross Additions		0		201
Gross Reductions		28		0
Ending balance		$ 432	[23]	$ 460		259
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%	[23]	12%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(218)		(17)
Amount of Interest, Fees or Dividends Credited to Income		466		505
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		3,780		3,754
Gross Additions		3		43
Gross Reductions		218		17
Ending balance		3,565	[23]	3,780		3,754
Investment, Identifier [Axis]: Tex Tech Tennis, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[25]	1,830
Ending balance		2,840	[11],[26]	1,830	[14],[25]
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[16]	1,600
Ending balance	[16]			$ 1,600
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		43
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[17]	$ 1,600
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13%		13%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 26
Ending balance		$ 37		$ 26
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13%		13%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 2,341
Ending balance		1,841		$ 2,341
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)		1,230		(210)
Amount of Interest, Fees or Dividends Credited to Income		29		29
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,950	[16]	2,160
Gross Additions		1,230		0
Gross Reductions		0		210
Ending balance		$ 3,180	[17]	1,950	[16]	2,160
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		8%
Amount of Realized Gain/(Loss)		$ 0		0
Amount of Unrealized Gain/(Loss)		(2)		3
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		(6)
Gross Additions		2		6
Gross Reductions		2		0
Ending balance		$ 0	[12]	$ 0		(6)
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12%		12%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(14)		(17)
Amount of Interest, Fees or Dividends Credited to Income		255		273
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,980		2,180
Gross Additions		14		17
Gross Reductions		14		217
Ending balance		1,980		$ 1,980		2,180
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7],[15]			11.57%
Spread	[7],[15]			1.25%
PIK Rate	[7],[15]			7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]	$ 5,018
Ending balance	[7],[15]			$ 5,018
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8],[13],[21]	12.53%
Spread	[8],[13],[21]	7.15%
PIK Rate	[8],[13],[21]	6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[13],[21]	$ 2,438
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[21]	0
Investment, Identifier [Axis]: US Bank Money Market Account
Schedule of Investments [Line Items]
Total Rate				0.005%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[50]	8,347
Ending balance	[50]			$ 8,347
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[14],[15]			9.82%
Spread	[14],[15]			5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 18,013
Ending balance	[14],[15]			$ 18,013
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.46%
Spread	[11],[13]	6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 12,405
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.96%
Spread	[11],[13]	6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 4,825
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.96%
Spread	[11],[13]	6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 2,515
Investment, Identifier [Axis]: UserZoom Technologies, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.99%
Spread	[11],[13]	7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 3,000
Investment, Identifier [Axis]: VORTEQ Coil Finishers, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[16]	2,910
Ending balance		1,911	[11],[17]	2,910	[14],[16]
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)		(30)		30
Amount of Interest, Fees or Dividends Credited to Income		54		129
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,990	[16],[25]	2,960
Gross Additions		100		30
Gross Reductions		30		0
Ending balance		$ 3,060	[17],[26]	$ 2,990	[16],[25]	2,960
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6%	[12],[13],[23]	6%	[15],[25]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		10		13
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		(5)	[15],[25]	292
Gross Additions		5		203
Gross Reductions		0		500
Ending balance		$ 0	[12],[13],[23]	$ (5)	[15],[25]	292
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.50%		11.50%	[25]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		904		932
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		7,421	[25]	7,375
Gross Additions		55		46
Gross Reductions		550		0
Ending balance		6,926		$ 7,421	[25]	$ 7,375
Investment, Identifier [Axis]: Vida Capital, Inc, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7]			10.38%
Spread	[7]			6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]	4,885
Ending balance	[7]			$ 4,885
Investment, Identifier [Axis]: Vistar Media, Inc., Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	2,250
Ending balance		$ 2,180	[11]	2,250	[14]
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.63%
Spread	[11],[13]	7%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 12,193
Investment, Identifier [Axis]: Volusion, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0
Amount of Unrealized Gain/(Loss)		(1,104)
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		1,104
Gross Reductions		1,104
Ending balance		0		0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0
Ending balance				0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		3,110
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		1
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
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		0
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)		(596)
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		4,906
Gross Reductions		1,796
Ending balance		3,110		0
Investment, Identifier [Axis]: Volusion, 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]: Volusion, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10%		11.50%	[24]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[24]	$ 6,392
Ending balance		$ 900		$ 6,392	[24]
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		0
Amount of Interest, Fees or Dividends Credited to Income		69
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0
Gross Additions		900
Gross Reductions		0
Ending balance		$ 900		0
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.50%
Amount of Realized Gain/(Loss)		$ (1,366)
Amount of Unrealized Gain/(Loss)		780
Amount of Interest, Fees or Dividends Credited to Income		71
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		6,392
Gross Additions		0
Gross Reductions		6,392
Ending balance		$ 0		$ 6,392
Investment, Identifier [Axis]: Volusion, LLC, Unsecured Convertible Debt
Schedule of Investments [Line Items]
Total Rate		8%		8%
Amount of Realized Gain/(Loss)		$ (175)
Amount of Unrealized Gain/(Loss)		175
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		175
Gross Reductions		175
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)		1,104
Amount of Interest, Fees or Dividends Credited to Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[9]	0
Gross Additions		0
Gross Reductions		0
Ending balance		0		0	[9]
Investment, Identifier [Axis]: Wall Street Prep, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	530
Ending balance		$ 910	[11]	$ 530	[14]
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		7%	[11],[12],[13]	7%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ (7)
Ending balance		$ (5)	[11],[12],[13]	$ (7)	[14],[15]
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.54%	[11],[13]	10.74%	[14],[15]
Spread		7%	[11],[13]	7%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 5,216
Ending balance		$ 4,654	[11],[13]	$ 5,216	[14],[15]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.50%	[11],[13],[48]	10.73%	[14],[15]
Spread		6%	[11],[13],[48]	6%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 51
Ending balance		$ 253	[11],[13],[48]	$ 51	[14],[15]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.50%	[11],[13]	10.73%	[14],[15]
Spread		6%	[11],[13]	6%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 53
Ending balance		$ 53	[11],[13]	$ 53	[14],[15]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.50%	[11],[13]	10.73%	[14],[15]
Spread		6%	[11],[13]	6%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 4,141
Ending balance		$ 2,166	[11],[13]	$ 4,141	[14],[15]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.50%
Spread	[11],[13]	6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 1,955
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	250
Ending balance		$ 390	[11]	$ 250	[14]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13],[58]	11.34%
Spread		6%	[11],[13],[58]	6%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ (6)
Ending balance		$ 665	[11],[13],[58]	$ (6)	[14],[15]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.35%	[11],[13]	8.59%	[14],[15]
Spread		6%	[11],[13]	6%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 2,948
Ending balance		$ 2,947	[11],[13]	$ 2,948	[14],[15]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.35%
Spread	[11],[13]	6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 1,467
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13],[59]	12.64%
Spread		7%	[11],[13],[59]	7%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 0
Ending balance		$ 2,778	[11],[13],[59]	$ 0	[14],[15]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.66%
Spread		7%	[11],[13]	7%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ (43)
Ending balance		$ 2,583	[11],[13]	$ (43)	[14],[15]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.66%	[11],[13]	10.74%	[14],[15]
Spread		7%	[11],[13]	7%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 12,487
Ending balance		11,625	[11],[13]	$ 12,487	[14],[15]
Investment, Identifier [Axis]: World Micro Holdings, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		530
Ending balance		$ 530	[17]	$ 530
Investment, Identifier [Axis]: World Micro Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%		13%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 1,930
Ending balance		$ 1,601		$ 1,930
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		5.25%	[11],[12],[13]	5.25%	[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	$ (6)
Ending balance		$ 0	[11],[12],[13]	$ (6)	[14]
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.22%	[11],[13]	10.84%	[14]
Spread		5.75%	[11],[13]	5.25%	[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	$ 1,192
Ending balance		$ 1,188	[11],[13]	$ 1,192	[14]
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.25%	[11],[13]	8.63%	[14]
Spread		5.75%	[11],[13]	5.25%	[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]	$ 2,354
Ending balance		$ 2,352	[11],[13]	$ 2,354	[14]
Investment, Identifier [Axis]: YS Garments, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13%	[8],[13]	9.51%	[7],[15]
Spread		7.50%	[8],[13]	5.50%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]	$ 6,064
Ending balance		$ 5,110	[8],[13]	$ 6,064	[7],[15]
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.71%	[11],[13],[60]	11.67%	[14],[15]
Spread		7.25%	[11],[13],[60]	7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]	$ 2,388
Ending balance		$ 2,234	[11],[13],[60]	$ 2,388	[14],[15]
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.71%	[11],[13],[60]	11.67%	[14],[15],[61]
Spread		7.25%	[11],[13],[60]	7.25%	[14],[15],[61]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[61]	$ 597
Ending balance		$ 555	[11],[13],[60]	$ 597	[14],[15],[61]
[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. 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 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, 95% of these floating rate loans (based on the par amount) contain LIBOR or Term SOFR ("SOFR") floors which range between 0.75% and 2.00%, with a weighted-average floor of 1.17%. Private Loan portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Private Loan portfolio investments. 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 LIBOR floors which range between 0.50% and 2.00%, with a weighted-average LIBOR floor of 1.04%. Income producing through dividends or distributions. Income producing through dividends or distributions. Warrants are presented in equivalent shares/units with a strike price of $1.00 per share/unit. 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 2.50%. Non-accrual and non-income producing debt investment. Non-accrual and non-income producing debt investment. 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. Shares/Units represent ownership in a related Real Estate or HoldCo entity. 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. 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. 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. The security has an effective contractual interest rate of 2.00% PIK + LIBOR+6.50%, Floor 1.00%,but the issuer may, in its discretion, elect to pay the PIK interest in cash. The rate presented represents the effective current yield based on actual payments received during the period. 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, 2022, borrowings under the loan facility bore interest at SOFR+6.25% (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, 2022. As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+6.25% (Floor 1.00%). Due to an amendment and subsequent funding during the quarter, the term loan facility has different floating rate reset dates. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022. 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, 2022, borrowings under the loan facility bore interest at LIBOR+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, 2022. Effective yield as of December 31, 2023 was approximately 5.25% on the Fidelity Government Portfolio Class III Fund. Effective yield as of December 31, 2023 was approximately 5.23% on the First American Treasury Obligations Fund Class Z. As of December 31, 2022, 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, 2022. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.00% (Floor 1.50%). 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+6.75% (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, 2022, borrowings under the loan facility bore interest at LIBOR+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, 2022. 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, 2022, borrowings under the loan facility bore interest at LIBOR+7.25% (Floor 0.75%). 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, 2022. Effective yield as of December 31, 2022 was approximately 0.005% on the US Bank Money Market Account. As of December 31, 2022, 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, 2022. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.25% (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. Portfolio company headquarters are located outside of the United States. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+5.75% (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. As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+5.75% (Floor 1.00%). Delayed draw term loan 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, 2022. Warrants are presented in equivalent units with a strike price of $14.28 per unit. 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. As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.00% (Floor 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. As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+7.25% (Floor 1.00%). Each new draw on the delayed draw term loan 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, 2022.

Consolidated Schedule of Inve_6

Consolidated Schedule of Investments In and Advances to Affiliates - Footnotes (Details) - USD ($) $ in Thousands	Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
Schedule of Investments [Line Items]
Fair value	$ 1,092,895	[1]	$ 1,068,143	[2]
Affiliate investments
Schedule of Investments [Line Items]
Fair value	291,279	[1],[3]	277,000	[2],[4]	$ 234,158
Affiliate investments | Midwest
Schedule of Investments [Line Items]
Fair value	$ 107,201		$ 92,945
Net assets, percentage	17.20%		15.20%
Affiliate investments | Northeast
Schedule of Investments [Line Items]
Fair value	$ 38,466		$ 32,498
Net assets, percentage	6.20%		5.30%
Affiliate investments | Southeast
Schedule of Investments [Line Items]
Fair value	$ 31,725		$ 40,053
Net assets, percentage	5.10%		6.60%
Affiliate investments | Southwest
Schedule of Investments [Line Items]
Fair value	$ 86,332		$ 73,626
Net assets, percentage	13.90%		12.10%
Affiliate investments | West
Schedule of Investments [Line Items]
Fair value	$ 27,555		$ 37,878
Net assets, percentage	4.40%		6.20%
Control investments
Schedule of Investments [Line Items]
Fair value	$ 53,644	[1],[5]	$ 50,303	[2],[6]	$ 46,583
Control investments | Southwest
Schedule of Investments [Line Items]
Fair value	$ 53,076		$ 49,715
Net assets, percentage	8.50%		8.20%
Control investments | West
Schedule of Investments [Line Items]
Fair value	$ 568		$ 588
Net assets, percentage	0.10%		0.10%
[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. 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. 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.