FS Specialty Lending Fund (FSEN) 10-Q 13 Nov 24 2024 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2024	Nov. 01, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2024
Document Transition Report	false
Entity File Number	814-00841
Entity Registrant Name	FS Specialty Lending Fund
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	27-6822130
Entity Address, Address Line One	201 Rouse Boulevard
Entity Address, City or Town	Philadelphia
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	19112
City Area Code	215
Local Phone Number	495-1150
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
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		455,506,155
Entity Central Index Key	0001501729
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands		Sep. 30, 2024		Dec. 31, 2023
Assets
Investments, at fair value		$ 1,692,052	[1],[2]	$ 1,523,196	[3],[4]
Cash and cash equivalents		235,083	[1],[2],[5]	486,059	[3],[4],[6]
Restricted cash		39,244		6,699
Receivable for investments sold and repaid		1,487		27,860
Interest receivable		17,346		15,093
Dividends receivable		352		360
Swap income receivable		628		36
Prepaid expenses and other assets		128		254
Total assets		1,986,320		2,059,557
Liabilities
Payable for investments purchased		21,087		61,596
Unrealized depreciation on swap contracts		13		0
Swap income payable		263		259
Shareholder distributions payable		0		27,740
Management fees payable		8,761		8,416
Administrative services expense payable		1,186		108
Interest payable		1,341		1,603
Trustees' fees payable		164		164
Other accrued expenses and liabilities		2,524		3,179
Total liabilities		431,331		497,502
Commitments and contingencies	[7]
Shareholders' equity
Preferred shares, $0.001 par value, 50,000,000 shares authorized, none issued and outstanding		0		0
Common shares, $0.001 par value, 700,000,000 shares authorized, 455,506,155 and 455,506,155 shares issued and outstanding, respectively		456		456
Capital in excess of par value		3,185,784		3,185,784
Accumulated earnings (deficit)		(1,631,251)		(1,624,185)
Total shareholders' equity		1,554,989		1,562,055
Total liabilities and shareholders' equity		$ 1,986,320		$ 2,059,557
Net asset value per common share at period end (in USD per share)		$ 3.41		$ 3.43
Repurchase Facility
Liabilities
Repurchase facility payable (net of deferred financing costs of $4,008 and $5,563, respectively)	[8]	$ 395,992		$ 394,437
Non-controlled/unaffiliated Investments
Assets
Investments, at fair value		1,613,523		1,414,684
Non-controlled/affiliated investments
Assets
Investments, at fair value		32,205		7,496
Controlled/affiliated investments
Assets
Investments, at fair value		$ 46,324		$ 101,016
[1]Security may be an obligation of one or more entities affiliated with the named company.[2]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.[3]Security may be an obligation of one or more entities affiliated with the named company.[4]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.[5]Includes $33,275 held in Allspring Government Money Market Fund with a 7-day yield of 4.86% as of September 30, 2024.[6]Includes $23,098 held in Allspring Government Money Market Fund with a 7-day yield of 5.3% as of December 31, 2023.[7]See Note 10 for a discussion of the Company's commitments and contingencies.[8]See Note 9 for a discussion of the Company's financing arrangements.

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2024		Dec. 31, 2023
Amortized cost	$ 1,756,453	[1]	$ 1,543,925	[2]
Preferred stock, par value (in USD per share)	$ 0.001		$ 0.001
Preferred stock, shares authorized (in shares)	50,000,000		50,000,000
Preferred stock, shares issued (in shares)	0		0
Preferred stock, shares outstanding (in shares)	0		0
Common stock, par value (in USD per share)	$ 0.001		$ 0.001
Common stock, shares authorized (in shares)	700,000,000		700,000,000
Common stock, shares issued (in shares)	455,506,155		455,506,155
Common stock, shares outstanding (in shares)	455,506,155		455,506,155
Repurchase Facility
Deferred financing cost on facilities payable	$ 4,008		$ 5,563
Non-controlled/unaffiliated Investments
Amortized cost	1,660,913		1,358,793
Non-Controlled/Affiliated
Amortized cost	52,390		25,601
Controlled/affiliated
Amortized cost	$ 43,150		$ 159,531
[1]Security may be an obligation of one or more entities affiliated with the named company.[2]Security may be an obligation of one or more entities affiliated with the named company.

Unaudited Consolidated Statemen

Unaudited Consolidated Statements of Operations - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024		Sep. 30, 2023
Investment income
Paid-in-kind interest income				$ 8,681		$ 14,174
Fee income				0		0
Total investment income		$ 52,738	$ 30,443	172,274		115,014
Operating expenses
Management fees		8,764	7,778	26,841		26,957
Administrative services expenses		1,552	1,887	4,622		4,566
Share transfer agent fees		929	820	2,767		2,365
Accounting and administrative fees		148	82	452		444
Interest expense	[1]	9,086	738	27,210		19,066
Trustees' fees		164	163	492		503
Other general and administrative expenses		1,050	1,486	3,375		3,524
Total operating expenses		21,693	12,954	65,759		57,425
Less: Management fee offset	[2]	(3)	(63)	(6)		(337)
Net expenses		21,690	12,891	65,753		57,088
Net investment income before taxes		31,048	17,552	106,521		57,926
Federal and state taxes		114	834	923		2,150
Net investment income		30,934	16,718	105,598		55,776
Realized and unrealized gain/loss
Net realized gain (loss) on investments:				4,461		(56,305)
Net realized gain (loss) on foreign currency		0	(3)	0		(123)
Net realized gain (loss) on swap contracts		830	(138)	7,057		88
Net change in unrealized (appreciation) depreciation on investments				(43,672)		(84,491)
Net change in unrealized appreciation (depreciation) on swap contracts		(238)	(803)	(13)		400
Net change in unrealized appreciation (depreciation) on foreign currency		4	(7)	(9)		27
Total net realized and unrealized gain (loss)		(17,097)	(44,141)	(32,176)		(140,404)
Net increase (decrease) in net assets resulting from operations		$ 13,837	$ (27,423)	$ 73,422		$ (84,628)
Per share information—basic and diluted
Net increase (decrease) in net assets resulting from operations (Earnings per Share), basic (in USD per share)		$ 0.03	$ (0.06)	$ 0.16		$ (0.19)
Net increase (decrease) in net assets resulting from operations (Earnings per Share), diluted (in USD per share)		$ 0.03	$ (0.06)	$ 0.16		$ (0.19)
Weighted average shares outstanding, basic (in shares)		455,506,155	455,401,486	455,506,155		454,052,204
Weighted average shares outstanding, diluted (in shares)		455,506,155	455,401,486	455,506,155		454,052,204
Non-controlled/unaffiliated Investments
Investment income
Interest income		$ 41,412	$ 26,497	$ 146,088		$ 78,286
Paid-in-kind interest income		2,979	2,232	7,793		13,783
Fee income		1,977	586	3,622		1,712
Dividend income		5,181	334	10,221		14,757
Realized and unrealized gain/loss
Net realized gain (loss) on investments:		(4,303)	6,553	67,664		(23,242)
Net change in unrealized (appreciation) depreciation on investments		(10,008)	3,530	(103,281)		(36,013)
Non-Controlled/Affiliated
Investment income
Interest income		1,122	74	2,154		398
Paid-in-kind interest income		55	25	828	[3]	73
Realized and unrealized gain/loss
Net realized gain (loss) on investments:		77	(163)	148		(33,063)
Net change in unrealized (appreciation) depreciation on investments		(1,552)	253	(2,080)		15,781
Controlled/affiliated
Investment income
Interest income		12	609	1,508		5,687
Paid-in-kind interest income		0	86	60	[4]	318
Realized and unrealized gain/loss
Net realized gain (loss) on investments:		(3,604)	0	(63,351)		0
Net change in unrealized (appreciation) depreciation on investments		$ 1,697	$ (53,363)	$ 61,689		$ (64,259)
[1]See Note 9 for a discussion of the Company's financing arrangements.[2]See Note 4 for a discussion of the offset by FS/EIG Advisor, LLC, the Company's investment adviser, of certain management fees to which it was otherwise entitled during the applicable period.[3]Interest and PIK income presented for the nine months ended September 30, 2024.[4]Interest and PIK income presented for the nine months ended September 30, 2024.

Unaudited Consolidated Statem_2

Unaudited Consolidated Statements of Changes in Net Assets - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Operations
Net investment income		$ 30,934	$ 16,718	$ 105,598	$ 55,776
Net realized gain (loss) on investments, foreign currency and swap contracts		(7,000)	6,249	11,518	(56,340)
Net change in unrealized appreciation (depreciation) on investments		(9,863)	(49,580)	(43,672)	(84,491)
Net change in unrealized appreciation (depreciation) on swap contracts		(238)	(803)	(13)	400
Net change in unrealized appreciation (depreciation) on foreign currency		4	(7)	(9)	27
Net increase (decrease) in net assets resulting from operations		13,837	(27,423)	73,422	(84,628)
Shareholder distributions
Distributions to shareholders	[1]	(39,492)	0	(80,488)	(27,208)
Net decrease in net assets resulting from shareholder distributions	[1]	(39,492)	0	(80,488)	(27,208)
Capital share transactions
Reinvestment of shareholder distributions	[2]	0	5,161	0	15,549
Net increase in net assets resulting from capital share transactions	[2]	0	5,161	0	15,549
Total increase (decrease) in net assets		(25,655)	(22,262)	(7,066)	(96,287)
Net assets at beginning of period		1,580,644	1,679,723	1,562,055	1,753,748
Net assets at end of period		$ 1,554,989	$ 1,657,461	$ 1,554,989	$ 1,657,461
[1] See Note 5 for a discussion of the sources of distributions paid by the Company. See Note 3 for a discussion of the Company's common share transactions.

Unaudited Consolidated Statem_3

Unaudited Consolidated Statements of Cash Flows - USD ($) $ in Thousands		3 Months Ended				9 Months Ended				12 Months Ended
		Sep. 30, 2024		Sep. 30, 2023		Sep. 30, 2024		Sep. 30, 2023		Dec. 31, 2023
Cash flows from operating activities
Net increase (decrease) in net assets resulting from operations		$ 13,837		$ (27,423)		$ 73,422		$ (84,628)
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:
Purchases of long-term investments						(922,131)		(253,471)
Paid-in-kind interest						(8,681)		(14,174)
Proceeds from sales and repayments of long-term investments						706,762		685,682
Net proceeds from sales (purchases) of short-term investments						22,865		0
Net realized (gain) loss on investments						(4,461)		56,305
Net change in unrealized (appreciation) depreciation on investments						43,672		84,491
Net change in unrealized (appreciation) depreciation on swap contracts		238		803		13		(400)
Accretion of discount						(6,882)		(4,484)
Amortization of deferred financing costs and discount						1,555		2,903
(Increase) decrease in receivable for investments sold and repaid						26,373		6,246
(Increase) decrease in interest receivable						(2,253)		11,413
(Increase) decrease in dividends receivable						8		527
(Increase) decrease in swap income receivable						(592)		54
(Increase) decrease in prepaid expenses and other assets						126		47
Increase (decrease) in payable for investments purchased						(40,509)		50,847
Increase (decrease) in swap income payable						4		144
Increase (decrease) in management fees payable						345		(3,470)
Increase (decrease) in administrative services expense payable						1,078		18
Increase (decrease) in interest payable	[1]					(262)		(12,758)
Increase (decrease) in trustees' fees payable						0		(1)
Increase (decrease) in other accrued expenses and liabilities						(655)		(1,621)
Net cash provided by (used in) operating activities						(110,203)		523,670
Cash flows from financing activities
Shareholder distributions paid						(108,228)		(25,202)
Borrowings under repurchase facility	[1]					0		80,000
Repayments of credit facilities	[1]					0		(305,676)
Repayments under senior secured notes	[1]					0		(457,075)
Deferred financing costs paid						0		(5,634)
Net cash provided by (used in) financing activities						(108,228)		(713,587)
Total increase (decrease) in cash, cash equivalents and restricted cash						(218,431)		(189,917)
Cash, cash equivalents and restricted cash at beginning of period						492,758		481,655		$ 481,655
Cash, cash equivalents and restricted cash at end of period		$ 274,327	[2]	$ 291,738	[2]	274,327	[2]	291,738	[2]	$ 492,758
Supplemental disclosure
Non-cash reinvestment of shareholder distributions						0		15,549
Non-cash purchases of investments						(71,247)		(3,284)
Non-cash sales of investments						71,247		3,284
Federal and state taxes paid						$ 1,374		$ 3,596
[1]See Note 9 for a discussion of the Company's financing arrangements. During the nine months ended September 30, 2024 and 2023, the Company paid $25,917 and $28,921, respectively, in interest expense on the financing arrangements and Senior Secured Notes.[2]Includes $235,083 and $289,738 of cash and cash equivalents and $39,244 and $2,000 of restricted cash as of September 30, 2024 and 2023, respectively. Restricted cash is the cash collateral required to be posted pursuant to the Company’s derivative contracts.

Unaudited Consolidated Statem_4

Unaudited Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024		Sep. 30, 2023
Statement of Cash Flows [Abstract]
Interest expense paid	$ 25,917		$ 28,921
Cash and cash equivalents	235,083	[1],[2],[3]	289,738
Restricted cash	$ 39,244		$ 2,000
[1]Includes $33,275 held in Allspring Government Money Market Fund with a 7-day yield of 4.86% as of September 30, 2024.[2]Security may be an obligation of one or more entities affiliated with the named company.[3]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.

Unaudited Consolidated Schedule

Unaudited Consolidated Schedule of Investments - USD ($) $ in Thousands		Sep. 30, 2024		Dec. 31, 2023		Dec. 31, 2022
Percent of net assets		108.90%	[1]	97.50%	[2]
Amortized Cost		$ 1,756,453	[1]	$ 1,543,925	[2]
Fair Value		$ 1,692,052	[1],[3]	$ 1,523,196	[2],[4]
Liabilities in excess of other assets percentage		(24.00%)	[1],[5]	(28.60%)	[2],[6]
Cash and other assets		$ 235,083	[1],[3],[7]	$ 486,059	[2],[4],[8]
Liabilities in Excess of Other Assets		(372,146)	[1],[3],[5]	(447,200)	[2],[4],[6]
Net Assets		1,554,989	[1],[3]	1,562,055	[2],[4]
Nomura Total Return Swap
Unrealized Appreciation (Depreciation)		$ (13)		$ 0
Nomura Total Return Swap | Nomura Total Return Swap
Number of Shares		5,661,957		6,756,299
Interest Rate		1.15%	[9]	1.15%	[10]
Notional Amount		$ 36,520		$ 38,308
Unrealized Appreciation (Depreciation)		$ 0		$ 0
Nomura Total Return Swap | BNP Paribas, Aretec Group, Inc
Number of Shares		0
Interest Rate	[9]	4.50%
Notional Amount		$ 7,444
Unrealized Appreciation (Depreciation)		$ (160)
Nomura Total Return Swap | BNP Paribas, BCPE Empire Holdings, Inc.
Number of Shares		0
Interest Rate	[9]	4%
Notional Amount		$ 7,463
Unrealized Appreciation (Depreciation)		$ 10
Nomura Total Return Swap | BNP Paribas, Charlotte Buyer, Inc.
Number of Shares		0
Interest Rate	[9]	5.25%
Notional Amount		$ 7,462
Unrealized Appreciation (Depreciation)		$ 56
Nomura Total Return Swap | BNP Paribas, Clear Channel Outdoor Holdings, Inc.
Number of Shares		0
Interest Rate	[9]	3.50%
Notional Amount		$ 7,500
Unrealized Appreciation (Depreciation)		$ 61
Nomura Total Return Swap | BNP Paribas, Pro Mach Group, Inc.
Number of Shares		0
Interest Rate	[9]	3.75%
Notional Amount		$ 7,481
Unrealized Appreciation (Depreciation)		$ 20
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., Capital Goods
Variable rate (percent)	[9],[11]	3.50%
Floor Rate (percent)	[9],[11]	0.50%
Principal Amount	[11],[12]	$ 19,950
Amortized Cost	[11]	19,818
Fair Value	[3],[11]	$ 19,949
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., Capital Goods 1
Variable rate (percent)	[10],[13],[14]			4.25%
Floor Rate (percent)	[10],[13],[14]			0.50%
Principal Amount	[13],[14],[15]			$ 16,522
Amortized Cost	[13],[14]			16,398
Fair Value	[4],[13],[14]			$ 16,625
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., Capital Goods 2
Variable rate (percent)	[10],[14],[16]			4.25%
Floor Rate (percent)	[10],[14],[16]			0.50%
Principal Amount	[14],[15],[16]			$ 3,478
Amortized Cost	[14],[16]			3,452
Fair Value	[4],[14],[16]			$ 3,500
Investment, Identifier [Axis]: AIRRO (Mauritius) Holdings II, Energy—Power
Variable rate (percent)	[10],[17],[18],[19]			4%
PIK Rate (percent)	[10],[17],[18],[19]			3%
Floor Rate (percent)	[10],[17],[18],[19]			1.50%
Principal Amount	[15],[17],[18],[19]			$ 22,856
Amortized Cost	[17],[18],[19]			20,779
Fair Value	[4],[17],[18],[19]			$ 23,050
Investment, Identifier [Axis]: AIRRO (Mauritius) Holdings II, Energy—Power | Maximum
PIK Rate (percent)	[10],[17],[18],[19]			3%
Investment, Identifier [Axis]: AIRRO (Mauritius) Holdings II, Warrants, Strike: $1.00, Energy—Power
Number of Shares	[17],[18],[19],[20]			35
Amortized Cost	[17],[18],[19],[20]			$ 2,652
Fair Value	[4],[17],[18],[19],[20]			$ 0
Strike price (in dollars per share)	[2],[17],[18],[19],[20]			$ 1
Investment, Identifier [Axis]: APTIM Corp., Commercial & Professional Services
Variable rate (percent)	[9],[11]	7.50%
Principal Amount	[11],[12]	$ 27,500
Amortized Cost	[11]	27,500
Fair Value	[3],[11]	$ 27,775
Investment, Identifier [Axis]: Abaco Energy Technologies LLC, Common Equity, Energy—Service & Equipment
Number of Shares	[17],[20]			6,944,444
Amortized Cost	[17],[20]			$ 6,944
Fair Value	[4],[17],[20]			$ 1,375
Investment, Identifier [Axis]: Abaco Energy Technologies LLC, Preferred Equity, Energy—Service & Equipment
Number of Shares	[17],[20]			28,942,003
Amortized Cost	[17],[20]			$ 1,447
Fair Value	[4],[17],[20]			$ 10,159
Investment, Identifier [Axis]: Acrisure, LLC, Insurance
Variable rate (percent)		3.25%	[9],[11]	4.50%	[10],[13]
Principal Amount		$ 18,849	[11],[12]	$ 20,175	[13],[15]
Amortized Cost		18,789	[11]	20,033	[13]
Fair Value		$ 18,702	[3],[11]	$ 20,251	[4],[13]
Investment, Identifier [Axis]: Aimbridge Acquisition Co. Inc., Consumer Services
Variable rate (percent)		3.75%	[9],[11]	3.75%	[10],[13]
Principal Amount		$ 26,595	[11],[12]	$ 21,805	[13],[15]
Amortized Cost		25,844	[11]	21,036	[13]
Fair Value		$ 25,999	[3],[11]	$ 20,380	[4],[13]
Investment, Identifier [Axis]: AirSwift Holdings, Ltd., Common Equity, Commercial & Professional Services
Number of Shares		3,750,000	[21],[22],[23]	3,750,000	[17],[19],[20]
Amortized Cost		$ 5,136	[21],[22],[23]	$ 6,029	[17],[19],[20]
Fair Value		$ 3,214	[3],[21],[22],[23]	$ 3,413	[4],[17],[19],[20]
Investment, Identifier [Axis]: Allegiant Travel Co., Transportation
Rate (percent)		7.30%	[9],[23]	7.30%	[10],[19]
Principal Amount		$ 12,271	[12],[23]	$ 10,601	[15],[19]
Amortized Cost		11,357	[23]	9,614	[19]
Fair Value		$ 12,179	[3],[23]	10,385	[4],[19]
Investment, Identifier [Axis]: Allied Downhole Technologies, LLC
Fair Value				$ 0		$ 8,436
Investment, Identifier [Axis]: Allied Universal Holdco LLC, Consumer Services
Variable rate (percent)	[9],[11]	3.75%
Floor Rate (percent)	[9],[11]	0.50%
Principal Amount	[11],[12]	$ 22,786
Amortized Cost	[11]	22,528
Fair Value	[3],[11]	22,590
Investment, Identifier [Axis]: Allied Universal Holdco LLC, Consumer Services 1
Variable rate (percent)	[10],[13]			4.75%
Floor Rate (percent)	[10],[13]			0.50%
Principal Amount	[13],[15]			$ 9,975
Amortized Cost	[13]			9,841
Fair Value	[4],[13]			$ 9,998
Investment, Identifier [Axis]: Allied Universal Holdco LLC, Consumer Services 2
Variable rate (percent)	[10],[13]			3.75%
Floor Rate (percent)	[10],[13]			0.50%
Principal Amount	[13],[15]			$ 9,929
Amortized Cost	[13]			9,627
Fair Value	[4],[13]			9,903
Investment, Identifier [Axis]: Allied Wireline Services, LLC
Fair Value		0		22,200		63,888
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Common Equity
Fair Value		0		$ 0		10,463
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Common Equity, Energy—Service & Equipment
Number of Shares	[17],[20],[24],[25]			48,400
Amortized Cost	[17],[20],[24],[25]			$ 1,527
Fair Value	[4],[17],[20],[24],[25]			$ 0
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Energy—Service & Equipment
PIK Rate (percent)	[10],[17],[20],[25],[26]			10%
Principal Amount	[15],[17],[20],[25],[26]			$ 70,277
Amortized Cost	[17],[20],[25],[26]			70,277
Fair Value	[4],[17],[20],[25],[26]			$ 22,200
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Energy—Service & Equipment | Maximum
PIK Rate (percent)	[10],[17],[20],[25],[26]			10%
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Warrants
Fair Value		$ 0		$ 0		0
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Warrants, Energy—Service & Equipment
Number of Shares	[17],[20],[24],[25]			22,000
Amortized Cost	[17],[20],[24],[25]			$ 0
Fair Value	[4],[17],[20],[24],[25]			$ 0
Investment, Identifier [Axis]: Allspring Government Money Market Fund - Select Class, Money Market Fund
Rate (percent)		4.86%		5.30%
Fair Value		$ 33,275		$ 23,098
Investment, Identifier [Axis]: American Auto Auction Group, LLC, Capital Goods
Variable rate (percent)		5%	[9],[11]	5%	[10],[13]
Floor Rate (percent)		0.80%	[9],[11]	0.80%	[10],[13]
Principal Amount		$ 23,799	[11],[12]	$ 9,975	[13],[15]
Amortized Cost		23,560	[11]	9,752	[13]
Fair Value		$ 23,933	[3],[11]	$ 9,858	[4],[13]
Investment, Identifier [Axis]: Ansira Partners, Inc., Media & Entertainment 1
Variable rate (percent)	[9],[21]	6.75%
Floor Rate (percent)	[9],[21]	1.50%
Principal Amount	[12],[21]	$ 393
Amortized Cost	[21]	295
Fair Value	[3],[21]	$ 383
Investment, Identifier [Axis]: Ansira Partners, Inc., Media & Entertainment 2
Variable rate (percent)	[9],[11],[21]	6.75%
Floor Rate (percent)	[9],[11],[21]	1.50%
Principal Amount	[11],[12],[21]	$ 36,323
Amortized Cost	[11],[21]	35,432
Fair Value	[3],[11],[21]	$ 35,415
Investment, Identifier [Axis]: Ansira Partners, Inc., Media & Entertainment 3
Variable rate (percent)	[9],[21],[27]	6.75%
Floor Rate (percent)	[9],[21],[27]	1.50%
Principal Amount	[12],[21],[27]	$ 3,534
Amortized Cost	[21],[27]	3,534
Fair Value	[3],[21],[27]	$ 3,446
Investment, Identifier [Axis]: Arena Energy, LP, Contingent Value Rights, Energy—Upstream
Number of Shares		126,632,117	[21]	126,632,117	[17],[20]
Amortized Cost		$ 351	[21]	$ 351	[17],[20]
Fair Value		$ 187	[3],[21]	$ 571	[4],[17],[20]
Investment, Identifier [Axis]: Aretec Escrow Issuer Inc., Financial Services
Rate (percent)	[10],[13]			10%
Principal Amount	[13],[15]			$ 7,000
Amortized Cost	[13]			7,000
Fair Value	[4],[13]			$ 7,447
Investment, Identifier [Axis]: Aretec Escrow Issuer, Inc., Financial Services
Rate (percent)	[9],[11]	10%
Principal Amount	[11],[12]	$ 2,000
Amortized Cost	[11]	2,000
Fair Value	[3],[11]	$ 2,131
Investment, Identifier [Axis]: Aretec Group, Inc., Financial Services
Variable rate (percent)		4%	[9],[11]	4.50%	[10],[13],[14]
Principal Amount		$ 6,800	[11],[12]	$ 9,352	[13],[14],[15]
Amortized Cost		6,772	[11]	9,071	[13],[14]
Fair Value		$ 6,671	[3],[11]	$ 9,358	[4],[13],[14]
Investment, Identifier [Axis]: Ascent Resources Utica Holdings, LLC, Common Equity, Energy—Upstream
Number of Shares		1,486,929	[21],[22],[28]	1,486,929	[17],[20],[24]
Amortized Cost		$ 42,739	[21],[22],[28]	$ 44,573	[17],[20],[24]
Fair Value		$ 36,342	[3],[21],[22],[28]	$ 39,545	[4],[17],[20],[24]
Investment, Identifier [Axis]: Auris Luxembourg III S.a r.l, Health Care Equipment & Services
Variable rate (percent)		4.25%	[9],[11],[23]	3.75%	[10],[13],[19]
Principal Amount		$ 22,802	[11],[12],[23]	$ 20,287	[13],[15],[19]
Amortized Cost		22,697	[11],[23]	19,912	[13],[19]
Fair Value		$ 22,838	[3],[11],[23]	$ 20,079	[4],[13],[19]
Investment, Identifier [Axis]: Aveanna Healthcare LLC, Health Care Equipment & Services
Variable rate (percent)		3.75%	[9],[11]	3.75%	[10],[13]
Floor Rate (percent)		0.50%	[9],[11]	0.50%	[10],[13]
Principal Amount		$ 20,748	[11],[12]	$ 15,909	[13],[15]
Amortized Cost		18,817	[11]	14,054	[13]
Fair Value		$ 20,315	[3],[11]	$ 14,852	[4],[13]
Investment, Identifier [Axis]: BCPE Empire Holdings, Inc., Consumer Services
Variable rate (percent)		4%	[9],[11]	4.75%	[10],[13]
Floor Rate (percent)		0.50%	[9],[11]	0.50%	[10],[13]
Principal Amount		$ 22,288	[11],[12]	$ 24,900	[13],[15]
Amortized Cost		22,359	[11]	24,983	[13]
Fair Value		22,323	[3],[11]	24,998	[4],[13]
Investment, Identifier [Axis]: Bridge Street CLO IV Ltd., Subordinated Notes
Fair Value		$ 21,580		0
Investment, Identifier [Axis]: Bridge Street CLO IV Ltd., Subordinated Notes, Financial Services
Rate (percent)	[9],[21],[23],[29],[30],[31]	18.20%
Principal Amount	[12],[21],[23],[29],[30],[31]	$ 23,700
Amortized Cost	[21],[23],[29],[30],[31]	23,489
Fair Value	[3],[21],[23],[29],[30],[31]	21,580
Investment, Identifier [Axis]: Bridge Street Warehouse CLO IV Ltd., Financial Services
Fair Value		21,580
Investment, Identifier [Axis]: Bridge Street Warehouse CLO IV, Ltd.
Fair Value		$ 0		0
Investment, Identifier [Axis]: Bridge Street Warehouse CLO V Ltd., Financial Services
Rate (percent)	[9],[21],[23],[31],[32]	2.90%
Principal Amount	[12],[21],[23],[31],[32]	$ 5,000
Amortized Cost	[21],[23],[31],[32]	5,036
Fair Value	[3],[21],[23],[31],[32]	5,036
Investment, Identifier [Axis]: Bridge Street Warehouse CLO V, Ltd.
Fair Value		$ 5,036		$ 0
Investment, Identifier [Axis]: Brock Holdings III, LLC, Capital Goods
Variable rate (percent)	[9],[11],[23]	6%
Floor Rate (percent)	[9],[11],[23]	0.50%
Principal Amount	[11],[12],[23]	$ 8,500
Amortized Cost	[11],[23]	8,339
Fair Value	[3],[11],[23]	$ 8,589
Investment, Identifier [Axis]: CCS-CMGC Holdings, Inc., Health Care Equipment & Services
Variable rate (percent)		5.50%	[9],[11],[22],[33]	5.50%	[10],[13]
Principal Amount		$ 27,622	[11],[12],[22],[33]	$ 21,465	[13],[15]
Amortized Cost		24,430	[11],[22],[33]	18,225	[13]
Fair Value		$ 17,525	[3],[11],[22],[33]	$ 18,222	[4],[13]
Investment, Identifier [Axis]: CPM Holdings, Inc., Capital Goods
Variable rate (percent)		4.50%	[9],[11]	4.50%	[10],[13]
Floor Rate (percent)		0.50%	[9],[11]	0.50%	[10],[13]
Principal Amount		$ 24,813	[11],[12]	$ 20,000	[13],[15]
Amortized Cost		24,879	[11]	20,038	[13]
Fair Value		$ 23,616	[3],[11]	$ 20,092	[4],[13]
Investment, Identifier [Axis]: Charlotte Buyer, Inc., Health Care Equipment & Services
Variable rate (percent)		4.75%	[9],[11]	5.25%	[10],[13],[14]
Floor Rate (percent)		0.50%	[9],[11]	0.50%	[10],[13],[14]
Principal Amount		$ 17,755	[11],[12]	$ 19,845	[13],[14],[15]
Amortized Cost		17,844	[11]	19,937	[13],[14]
Fair Value		$ 17,913	[3],[11]	$ 19,952	[4],[13],[14]
Investment, Identifier [Axis]: Chinos Intermediate 2, LLC, Consumer Discretionary Distribution & Retail
Variable rate (percent)	[9],[34]	6%
Principal Amount	[12],[34]	$ 16,000
Amortized Cost	[34]	15,720
Fair Value	[3],[34]	$ 16,120
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 1
Variable rate (percent)		6.50%	[9],[21]	6.75%	[10],[13],[17]
Floor Rate (percent)		1%	[9],[21]	1%	[10],[13],[17]
Principal Amount		$ 2,145	[12],[21]	$ 20,915	[13],[15],[17]
Amortized Cost		2,151	[21]	20,915	[13],[17]
Fair Value		$ 2,179	[3],[21]	$ 21,098	[4],[13],[17]
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 2
Variable rate (percent)		6.50%	[9],[11],[21]	6.75%	[10],[16],[17]
Floor Rate (percent)		1%	[9],[11],[21]	1%	[10],[16],[17]
Principal Amount		$ 20,758	[11],[12],[21]	$ 2,688	[15],[16],[17]
Amortized Cost		20,758	[11],[21]	2,688	[16],[17]
Fair Value		$ 21,031	[3],[11],[21]	$ 2,712	[4],[16],[17]
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 3
Variable rate (percent)		6.50%	[9],[21]	6.75%	[10],[16],[17]
Floor Rate (percent)		1%	[9],[21]	1%	[10],[16],[17]
Principal Amount		$ 538	[12],[21]	$ 1,344	[15],[16],[17]
Amortized Cost		538	[21]	1,344	[16],[17]
Fair Value		$ 542	[3],[21]	$ 1,356	[4],[16],[17]
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 4
Variable rate (percent)	[9],[21],[27]	6.50%
Floor Rate (percent)	[9],[21],[27]	1%
Principal Amount	[12],[21],[27]	$ 538
Amortized Cost	[21],[27]	538
Fair Value	[3],[21],[27]	$ 545
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 5
Variable rate (percent)	[9],[21],[27]	6.50%
Floor Rate (percent)	[9],[21],[27]	1%
Principal Amount	[12],[21],[27]	$ 806
Amortized Cost	[21],[27]	806
Fair Value	[3],[21],[27]	$ 813
Investment, Identifier [Axis]: Cirque Du Soleil Holding USA Newco, Inc., Financial Services
Variable rate (percent)	[10],[13],[14]			4.25%
Floor Rate (percent)	[10],[13],[14]			0.50%
Principal Amount	[13],[14],[15]			$ 6,387
Amortized Cost	[13],[14]			6,331
Fair Value	[4],[13],[14]			$ 6,372
Investment, Identifier [Axis]: Cirque Du Soleil Holding USA Newco, Inc., Media & Entertainment
Variable rate (percent)	[9],[11],[23]	3.75%
Floor Rate (percent)	[9],[11],[23]	0.50%
Principal Amount	[11],[12],[23]	$ 8,324
Amortized Cost	[11],[23]	8,278
Fair Value	[3],[11],[23]	$ 8,234
Investment, Identifier [Axis]: Citizen Energy Operating, LLC, Energy—Upstream
Variable rate (percent)		7.50%	[9],[11],[21]	7.65%	[10],[13],[17]
Floor Rate (percent)		1%	[9],[11],[21]	1%	[10],[13],[17]
Principal Amount		$ 32,000	[11],[12],[21]	$ 35,000	[13],[15],[17]
Amortized Cost		31,612	[11],[21]	34,527	[13],[17]
Fair Value		$ 32,210	[3],[11],[21]	$ 34,426	[4],[13],[17]
Investment, Identifier [Axis]: Clear Channel Outdoor Holdings, Inc., Media & Entertainment
Variable rate (percent)		4%	[9],[11],[23]	3.50%	[10],[13],[19]
Principal Amount		$ 12,500	[11],[12],[23]	$ 20,000	[13],[15],[19]
Amortized Cost		12,307	[11],[23]	19,551	[13],[19]
Fair Value		$ 12,489	[3],[11],[23]	$ 19,829	[4],[13],[19]
Investment, Identifier [Axis]: Clydesdale Acquisition Holdings Inc., Financials Services
Variable rate (percent)	[10],[13]			4.18%
Floor Rate (percent)	[10],[13]			0.50%
Principal Amount	[13],[15]			$ 19,949
Amortized Cost	[13]			19,740
Fair Value	[4],[13]			$ 20,061
Investment, Identifier [Axis]: Cop Village Green Acquisitions, Inc., Real Estate Management & Development 1
Variable rate (percent)	[9],[21]	4.75%
Floor Rate (percent)	[9],[21]	1%
Principal Amount	[12],[21]	$ 12,739
Amortized Cost	[21]	12,495
Fair Value	[3],[21]	$ 12,495
Investment, Identifier [Axis]: Cop Village Green Acquisitions, Inc., Real Estate Management & Development 2
Variable rate (percent)	[9],[21],[27]	4.75%
Floor Rate (percent)	[9],[21],[27]	1%
Principal Amount	[12],[21],[27]	$ 9,762
Amortized Cost	[21],[27]	9,762
Fair Value	[3],[21],[27]	$ 9,762
Investment, Identifier [Axis]: Cox Oil Offshore, LLC, Volumetric Production Payments, Energy—Upstream
Rate (percent)	[10],[17],[35],[36]			12.90%
Principal Amount	[15],[17],[35],[36]			$ 100,000
Amortized Cost	[17],[35],[36]			1,129
Fair Value	[4],[17],[35],[36]			$ 1,234
Investment, Identifier [Axis]: Crown SubSea Communication Holding, Inc., Capital Goods
Variable rate (percent)	[9],[11]	4%
Floor Rate (percent)	[9],[11]	0.80%
Principal Amount	[11],[12]	$ 5,985
Amortized Cost	[11]	5,929
Fair Value	[3],[11]	$ 6,029
Investment, Identifier [Axis]: Crown SubSea Communications Holding, Inc., Capital Goods 1
Variable rate (percent)	[10],[13],[14]			5%
Floor Rate (percent)	[10],[13],[14]			0.80%
Principal Amount	[13],[14],[15]			$ 4,500
Amortized Cost	[13],[14]			4,523
Fair Value	[4],[13],[14]			$ 4,534
Investment, Identifier [Axis]: Crown SubSea Communications Holding, Inc., Capital Goods 2
Variable rate (percent)	[10],[13],[14]			5.25%
Floor Rate (percent)	[10],[13],[14]			0.80%
Principal Amount	[13],[14],[15]			$ 5,430
Amortized Cost	[13],[14]			5,445
Fair Value	[4],[13],[14]			$ 5,468
Investment, Identifier [Axis]: Delivery Hero Finco LLC, Consumer Services
Variable rate (percent)	[9],[23]	5%
Floor Rate (percent)	[9],[23]	0.50%
Principal Amount	[12],[23]	$ 24,875
Amortized Cost	[23]	24,802
Fair Value	[3],[23]	$ 25,019
Investment, Identifier [Axis]: Digicel International Finance Ltd., Telecommunication Services
Variable rate (percent)	[9],[11]	5.15%
PIK Rate (percent)	[9],[11]	1.50%
Floor Rate (percent)	[9],[11]	0.50%
Principal Amount	[11],[12]	$ 20,154
Amortized Cost	[11]	19,486
Fair Value	[3],[11]	$ 19,983
Investment, Identifier [Axis]: Digicel International Finance Ltd., Telecommunication Services | Maximum
PIK Rate (percent)	[9],[11]	1.50%
Investment, Identifier [Axis]: Electrical Components International, Inc., Capital Goods 1
Variable rate (percent)	[9],[11],[21]	6.50%
Floor Rate (percent)	[9],[11],[21]	2%
Principal Amount	[11],[12],[21]	$ 47,282
Amortized Cost	[11],[21]	46,390
Fair Value	[3],[11],[21]	$ 46,395
Investment, Identifier [Axis]: Electrical Components International, Inc., Capital Goods 2
Variable rate (percent)	[9],[21],[27]	6.50%
Floor Rate (percent)	[9],[21],[27]	2%
Principal Amount	[12],[21],[27]	$ 2,600
Amortized Cost	[21],[27]	2,600
Fair Value	[3],[21],[27]	$ 2,551
Investment, Identifier [Axis]: Engineered Machinery Holdings, Inc., Capital Goods
Variable rate (percent)		3.75%	[9],[11]	3.50%	[10],[13]
Floor Rate (percent)		0.80%	[9],[11]	0.80%	[10],[13]
Principal Amount		$ 24,733	[11],[12]	$ 19,924	[13],[15]
Amortized Cost		24,673	[11]	19,847	[13]
Fair Value		$ 24,845	[3],[11]	$ 19,840	[4],[13]
Investment, Identifier [Axis]: FR XIII PAA Holdings HoldCo, LLC, Energy—Midstream
Variable rate (percent)	[10],[13],[17]			7.50%
Floor Rate (percent)	[10],[13],[17]			0.50%
Principal Amount	[13],[15],[17]			$ 17,047
Amortized Cost	[13],[17]			16,855
Fair Value	[4],[13],[17]			$ 17,156
Investment, Identifier [Axis]: First Brands Group, LLC, Automobiles & Components
Variable rate (percent)		5%	[9],[11]	5%	[10],[13]
Floor Rate (percent)		1%	[9],[11]	1%	[10],[13]
Principal Amount		$ 24,713	[11],[12]	$ 19,905	[13],[15]
Amortized Cost		24,478	[11]	19,620	[13]
Fair Value		$ 24,493	[3],[11]	$ 19,781	[4],[13]
Investment, Identifier [Axis]: Full House Resorts, Inc., Consumer Services
Rate (percent)		8.30%	[9],[11]	8.30%	[10],[13]
Principal Amount		$ 25,742	[11],[12]	$ 20,742	[13],[15]
Amortized Cost		23,663	[11]	18,561	[13]
Fair Value		25,799	[3],[11]	19,517	[4],[13]
Investment, Identifier [Axis]: GWP Midstream Holdco, LLC, Common Equity
Fair Value		$ 2,378		$ 1,661		5,044
Investment, Identifier [Axis]: GWP Midstream Holdco, LLC, Common Equity, Energy—Midstream
Number of Shares		105,785	[21],[22],[28],[31]	105,785	[17],[20],[24],[37]
Amortized Cost		$ 6,681	[21],[22],[28],[31]	$ 6,681	[17],[20],[24],[37]
Fair Value		$ 2,378	[3],[21],[22],[28],[31]	$ 1,661	[4],[17],[20],[24],[37]
Investment, Identifier [Axis]: GasLog Ltd., Energy—Midstream
Variable rate (percent)	[9],[21],[23]	7.80%
Rate (percent)	[10],[17],[19]			7.80%
Principal Amount		$ 7,523	[12],[21],[23]	$ 13,951	[15],[17],[19]
Amortized Cost		7,487	[21],[23]	13,874	[17],[19]
Fair Value		$ 7,379	[3],[21],[23]	$ 13,510	[4],[17],[19]
Investment, Identifier [Axis]: Gen4 Dental Partners Opco, LLC, Health Care Equipment & Services 1
Variable rate (percent)	[9],[11],[21]	5.50%
Floor Rate (percent)	[9],[11],[21]	1%
Principal Amount	[11],[12],[21]	$ 23,513
Amortized Cost	[11],[21]	22,955
Fair Value	[3],[11],[21]	$ 23,042
Investment, Identifier [Axis]: Gen4 Dental Partners Opco, LLC, Health Care Equipment & Services 2
Variable rate (percent)	[9],[21],[27]	5.50%
Floor Rate (percent)	[9],[21],[27]	1%
Principal Amount	[12],[21],[27]	$ 9,428
Amortized Cost	[21],[27]	9,428
Fair Value	[3],[21],[27]	$ 9,240
Investment, Identifier [Axis]: Global Jet Capital Holdings, LP, Preferred Equity, Commercial & Professional Services
Number of Shares		17,183	[21],[22]	2,785,562	[17],[20]
Amortized Cost		$ 9,806	[21],[22]	$ 2,786	[17],[20]
Fair Value		$ 6,938	[3],[21],[22]	$ 0	[4],[17],[20]
Investment, Identifier [Axis]: Global Jet Capital Holdings, LP, Preferred Equity, Commercial & Professional Services, 9.0% PIK (9.0% Max PIK)
PIK Rate (percent)	[10]			9%
Number of Shares	[17],[20],[26]			19,965
Amortized Cost	[17],[20],[26]			$ 12,493
Fair Value	[4],[17],[20],[26]			$ 10,357
Investment, Identifier [Axis]: Global Jet Capital Holdings, LP, Preferred Equity, Commercial & Professional Services, 9.0% PIK (9.0% Max PIK) | Maximum
PIK Rate (percent)	[10]			9%
Investment, Identifier [Axis]: Gold Rush Amusements, Inc., Consumer Services
Variable rate (percent)		7.50%	[9],[11],[21]	7.50%	[10],[13],[17]
Floor Rate (percent)		2%	[9],[11],[21]	2%	[10],[13],[17]
Principal Amount		$ 30,442	[11],[12],[21]	$ 30,673	[13],[15],[17]
Amortized Cost		29,915	[11],[21]	30,079	[13],[17]
Fair Value		$ 30,480	[3],[11],[21]	$ 30,059	[4],[13],[17]
Investment, Identifier [Axis]: Goodnight Water Solutions, LLC, Energy—Midstream
Variable rate (percent)	[10],[13],[17]			7%
Floor Rate (percent)	[10],[13],[17]			0.50%
Principal Amount	[13],[15],[17]			$ 14,516
Amortized Cost	[13],[17]			14,326
Fair Value	[4],[13],[17]			$ 14,379
Investment, Identifier [Axis]: Guardian US Holdco, LLC, Financial Services
Variable rate (percent)	[10],[13]			4%
Floor Rate (percent)	[10],[13]			0.50%
Principal Amount	[13],[15]			$ 19,925
Amortized Cost	[13]			19,922
Fair Value	[4],[13]			$ 20,008
Investment, Identifier [Axis]: Guardian US Holdco, LLC, Software & Services
Variable rate (percent)	[9],[11]	3.50%
Floor Rate (percent)	[9],[11]	0.50%
Principal Amount	[11],[12]	$ 24,738
Amortized Cost	[11]	24,765
Fair Value	[3],[11]	$ 24,622
Investment, Identifier [Axis]: Guitar Center, Inc., Consumer Discretionary Distribution & Retail
Rate (percent)		8.50%	[9],[11]	8.50%	[10],[13]
Principal Amount		$ 23,568	[11],[12]	$ 20,000	[13],[15]
Amortized Cost		21,904	[11]	17,987	[13]
Fair Value		20,600	[3],[11]	17,473	[4],[13]
Investment, Identifier [Axis]: Harvest Oil & Gas Corp., Common Equity
Fair Value		$ 365		$ 271		810
Investment, Identifier [Axis]: Harvest Oil & Gas Corp., Common Equity, Energy—Upstream
Number of Shares		135,062	[21],[22],[31]	135,062	[20],[37]
Amortized Cost		$ 14,418	[21],[22],[31]	$ 14,418	[20],[37]
Fair Value		$ 365	[3],[21],[22],[31]	$ 271	[4],[20],[37]
Investment, Identifier [Axis]: Knowlton Development Corporation Inc., Household & Personal Products
Variable rate (percent)	[10],[13]			5%
Principal Amount	[13],[15]			$ 21,000
Amortized Cost	[13]			20,370
Fair Value	[4],[13]			$ 20,858
Investment, Identifier [Axis]: Knowlton Development Corporation, Inc., Household & Personal Products
Variable rate (percent)	[9],[11]	4.50%
Principal Amount	[11],[12]	$ 25,935
Amortized Cost	[11]	25,327
Fair Value	[3],[11]	$ 25,988
Investment, Identifier [Axis]: LABL, Inc., Commercial & Professional Services
Variable rate (percent)	[9],[11]	5%
Floor Rate (percent)	[9],[11]	0.50%
Principal Amount	[11],[12]	$ 24,674
Amortized Cost	[11]	24,049
Fair Value	[3],[11]	$ 24,166
Investment, Identifier [Axis]: LABL, Inc., Commerical & Professional Services
Variable rate (percent)	[10],[13]			5%
Floor Rate (percent)	[10],[13]			0.50%
Principal Amount	[13],[15]			$ 19,864
Amortized Cost	[13]			19,335
Fair Value	[4],[13]			$ 19,106
Investment, Identifier [Axis]: Learning Care Group No. 2 Inc., Consumer Services
Variable rate (percent)	[10],[13]			4.75%
Floor Rate (percent)	[10],[13]			0.50%
Principal Amount	[13],[15]			$ 19,950
Amortized Cost	[13]			20,070
Fair Value	[4],[13]			20,100
Investment, Identifier [Axis]: Learning Care Group No. 2, Inc., Consumer Services
Variable rate (percent)	[9],[11]	4%
Floor Rate (percent)	[9],[11]	0.50%
Principal Amount	[11],[12]	$ 21,786
Amortized Cost	[11]	21,905
Fair Value	[3],[11]	$ 21,929
Investment, Identifier [Axis]: Level 3 Financing, Inc., Telecommunication Services
Variable rate (percent)	[9],[11],[23]	6.56%
Floor Rate (percent)	[9],[11],[23]	2%
Principal Amount	[11],[12],[23]	$ 19,291
Amortized Cost	[11],[23]	18,897
Fair Value	[3],[11],[23]	$ 19,727
Investment, Identifier [Axis]: Limetree Bay Energy, LLC, Class A Units
Fair Value				$ 0		1,885
Investment, Identifier [Axis]: M2S Group Intermediate Holdings, Inc., Materials
Variable rate (percent)	[9]	4.75%
Floor Rate (percent)	[9]	0.50%
Principal Amount	[12]	$ 30,000
Amortized Cost		27,927
Fair Value	[3]	$ 28,875
Investment, Identifier [Axis]: MBS Services Holdings, LLC, A-3 Units, Commercial & Professional Services
Number of Shares	[21],[22],[28]	522,382
Amortized Cost	[21],[22],[28]	$ 522
Fair Value	[3],[21],[22],[28]	$ 648
Investment, Identifier [Axis]: MBS Services Holdings, LLC, Commercial & Professional Services
PIK Rate (percent)	[9],[21]	15%
Principal Amount	[12],[21]	$ 30,833
Amortized Cost	[21]	29,865
Fair Value	[3],[21]	$ 29,561
Investment, Identifier [Axis]: MBS Services Holdings, LLC, Commercial & Professional Services | Maximum
PIK Rate (percent)	[9],[21]	15%
Investment, Identifier [Axis]: Maverick Natural Resources, LLC, Common Equity, Energy—Upstream
Number of Shares		503,176	[21],[28]	503,176	[17],[20],[24]
Amortized Cost		$ 93,044	[21],[28]	$ 93,044	[17],[20],[24]
Fair Value		$ 67,053	[3],[21],[28]	$ 164,040	[4],[17],[20],[24]
Investment, Identifier [Axis]: Mavis Tire Express Services TopCo, L.P., Consumer Discretionary Distribution & Retail
Variable rate (percent)		3.50%	[9],[11]	4%	[10],[13]
Floor Rate (percent)		0.80%	[9],[11]	0.80%	[10],[13]
Principal Amount		$ 17,263	[11],[12]	$ 19,893	[13],[15]
Amortized Cost		17,280	[11]	19,797	[13]
Fair Value		$ 17,274	[3],[11]	$ 19,955	[4],[13]
Investment, Identifier [Axis]: MedImpact Healthcare Systems, Inc., Health Care Equipment & Services
Variable rate (percent)	[9],[11]	7.25%
Principal Amount	[11],[12]	$ 24,684
Amortized Cost	[11]	22,381
Fair Value	[3],[11]	$ 24,313
Investment, Identifier [Axis]: NGL Energy Partners, LP, Preferred Equity, Energy—Midstream
Variable rate (percent)		7%
Number of Shares	[21],[23]	24,150
Amortized Cost	[21],[23]	$ 26,177
Fair Value	[3],[21],[23]	$ 31,306
Investment, Identifier [Axis]: NGL Energy Partners, LP, Preferred Equity, Energy—Midstream
Rate (percent)	[10],[13],[17],[19],[20],[26]			14.20%
Number of Shares	[13],[17],[19],[20],[26]			156,250
Amortized Cost	[13],[17],[19],[20],[26]			$ 157,633
Fair Value	[4],[13],[17],[19],[20],[26]			$ 141,141
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Par), Strike, Energy—Midstream 1
Number of Shares	[21],[22],[23]	2,187,500
Amortized Cost	[21],[22],[23]	$ 3,083
Fair Value	[3],[21],[22],[23]	$ 691
Strike price (in dollars per share)	[1],[21],[22],[23]	$ 14.54
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Par), Strike, Energy—Midstream 2
Number of Shares	[21],[22],[23]	546,880
Amortized Cost	[21],[22],[23]	$ 630
Fair Value	[3],[21],[22],[23]	$ 173
Strike price (in dollars per share)	[1],[21],[22],[23]	$ 13.56
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Par), Strike: $13.56, Energy—Midstream
Number of Shares	[17],[19],[20]			546,880
Amortized Cost	[17],[19],[20]			$ 630
Fair Value	[4],[17],[19],[20]			$ 621
Strike price (in dollars per share)	[2],[17],[19],[20]			$ 13.56
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Par), Strike: $14.54, Energy—Midstream
Number of Shares	[17],[19],[20]			2,187,500
Amortized Cost	[17],[19],[20]			$ 3,083
Fair Value	[4],[17],[19],[20]			$ 2,682
Strike price (in dollars per share)	[2],[17],[19],[20]			$ 14.54
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Premium), Strike, Energy—Midstream 1
Number of Shares	[21],[22],[23]	3,125,000
Amortized Cost	[21],[22],[23]	$ 2,623
Fair Value	[3],[21],[22],[23]	$ 695
Strike price (in dollars per share)	[1],[21],[22],[23]	$ 17.45
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Premium), Strike, Energy—Midstream 2
Number of Shares	[21],[22],[23]	781,250
Amortized Cost	[21],[22],[23]	$ 576
Fair Value	[3],[21],[22],[23]	$ 176
Strike price (in dollars per share)	[1],[21],[22],[23]	$ 16.27
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Premium), Strike: $16.27, Energy—Midstream
Number of Shares	[17],[19],[20]			781,250
Amortized Cost	[17],[19],[20]			$ 576
Fair Value	[4],[17],[19],[20]			$ 735
Strike price (in dollars per share)	[2],[17],[19],[20]			$ 16.27
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Premium), Strike: $17.45, Energy—Midstream
Number of Shares	[17],[19],[20]			3,125,000
Amortized Cost	[17],[19],[20]			$ 2,623
Fair Value	[4],[17],[19],[20]			$ 3,083
Strike price (in dollars per share)	[2],[17],[19],[20]			$ 17.45
Investment, Identifier [Axis]: Navios Logistics Finance, Inc., Transportation
Rate (percent)	[10],[13],[19]			10.80%
Principal Amount	[13],[15],[19]			$ 20,000
Amortized Cost	[13],[19]			19,680
Fair Value	[4],[13],[19]			$ 19,772
Investment, Identifier [Axis]: Nephron Pharmaceuticals Corp., Pharmaceuticals, Biotechnology & Life Sciences
Variable rate (percent)	[10],[17]			9%
Floor Rate (percent)	[10],[17]			1.50%
Principal Amount	[15],[17]			$ 20,000
Amortized Cost	[17]			19,400
Fair Value	[4],[17]			19,300
Investment, Identifier [Axis]: Nephron Pharmaceuticals Corp., Pharmaceuticals, Biotechnology & Life Sciences 1
Variable rate (percent)	[9],[21]	11%
Floor Rate (percent)	[9],[21]	1.50%
Principal Amount	[12],[21]	$ 19,745
Amortized Cost	[21]	19,324
Fair Value	[3],[21]	$ 19,105
Investment, Identifier [Axis]: Nephron Pharmaceuticals Corp., Pharmaceuticals, Biotechnology & Life Sciences 2
PIK Rate (percent)	[9],[21]	20%
Principal Amount	[12],[21]	$ 1,161
Amortized Cost	[21]	1,161
Fair Value	[3],[21]	$ 1,146
Investment, Identifier [Axis]: Nephron Pharmaceuticals Corp., Pharmaceuticals, Biotechnology & Life Sciences 2 | Maximum
PIK Rate (percent)	[9],[21]	20%
Investment, Identifier [Axis]: Onbe, Inc., Financial Services
Variable rate (percent)	[9],[11],[21]	5.50%
Floor Rate (percent)	[9],[11],[21]	1%
Principal Amount	[11],[12],[21]	$ 38,000
Amortized Cost	[11],[21]	37,263
Fair Value	[3],[11],[21]	$ 37,240
Investment, Identifier [Axis]: Osaic Holdings, Inc., Financial Services
Variable rate (percent)	[9],[11]	4%
Principal Amount	[11],[12]	$ 4,975
Amortized Cost	[11]	4,975
Fair Value	[3],[11]	$ 4,927
Investment, Identifier [Axis]: PODS, LLC, Transportation
Rate (percent)	[9],[11],[34]	3%
Floor Rate (percent)	[9],[11],[34]	0.80%
Principal Amount	[11],[12],[34]	$ 19,897
Amortized Cost	[11],[34]	18,894
Fair Value	[3],[11],[34]	$ 18,863
Investment, Identifier [Axis]: Peloton Interactive, Inc., Consumer Durables & Apparel
Rate (percent)	[9],[11],[23]	6%
Principal Amount	[11],[12],[23]	$ 24,938
Amortized Cost	[11],[23]	24,702
Fair Value	[3],[11],[23]	25,081
Investment, Identifier [Axis]: Permian Production Holdings, LLC
Fair Value		2,846		4,816		4,767
Investment, Identifier [Axis]: Permian Production Holdings, LLC, Common Equity
Fair Value		$ 0		$ 748		11,420
Investment, Identifier [Axis]: Permian Production Holdings, LLC, Common Equity, Energy—Upstream
Number of Shares		1,968,861	[21],[22],[28],[31]	1,968,861	[17],[20],[24],[37]
Amortized Cost		$ 5	[21],[22],[28],[31]	$ 5	[17],[20],[24],[37]
Fair Value		$ 0	[3],[21],[22],[28],[31]	$ 748	[4],[17],[20],[24],[37]
Investment, Identifier [Axis]: Permian Production Holdings, LLC, Energy—Upstream
Rate (percent)		7%	[9],[21],[31]	7%	[10],[17],[37]
PIK Rate (percent)		2%	[9],[21],[31]	2%	[10],[17],[37]
Principal Amount		$ 2,882	[12],[21],[31]	$ 4,864	[15],[17],[37]
Amortized Cost		2,761	[21],[31]	4,497	[17],[37]
Fair Value		$ 2,846	[3],[21],[31]	$ 4,816	[4],[17],[37]
Investment, Identifier [Axis]: Permian Production Holdings, LLC, Energy—Upstream | Maximum
PIK Rate (percent)		2%	[9],[21],[31]	2%	[10],[17],[37]
Investment, Identifier [Axis]: Phoenix Guarantor Inc., Financial Services
Variable rate (percent)	[10],[13],[14]			3.50%
Principal Amount	[13],[14],[15]			$ 19,923
Amortized Cost	[13],[14]			19,891
Fair Value	[4],[13],[14]			$ 19,951
Investment, Identifier [Axis]: Pioneer Midco, LLC, Consumer Services
PIK Rate (percent)	[9],[11],[21]	11.60%
Principal Amount	[11],[12],[21]	$ 35,167
Amortized Cost	[11],[21]	37,279
Fair Value	[3],[11],[21]	$ 38,103
Investment, Identifier [Axis]: Pioneer Midco, LLC, Consumer Services | Maximum
PIK Rate (percent)	[9],[11],[21]	11.60%
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Energy—Power 1
Rate (percent)		6%	[9],[21],[22],[33]	6%	[10],[17],[20],[26]
PIK Rate (percent)		9.50%	[9],[21],[22],[33]	9.50%	[10],[17],[20],[26]
Principal Amount		$ 14,281	[12],[21],[22],[33]	$ 13,297	[15],[17],[20],[26]
Amortized Cost		11,238	[21],[22],[33]	12,329	[17],[20],[26]
Fair Value		$ 4,739	[3],[21],[22],[33]	$ 7,473	[4],[17],[20],[26]
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Energy—Power 1 | Maximum
PIK Rate (percent)		9.50%	[9],[21],[22],[33]	9.50%	[10],[17],[20],[26]
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Energy—Power 2
PIK Rate (percent)		10%	[9],[21],[22],[33]	10%	[10],[17],[20],[26]
Principal Amount		$ 4,428	[12],[21],[22],[33]	$ 4,015	[15],[17],[20],[26]
Amortized Cost		3,827	[21],[22],[33]	3,827	[17],[20],[26]
Fair Value		$ 0	[3],[21],[22],[33]	$ 0	[4],[17],[20],[26]
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Energy—Power 2 | Maximum
PIK Rate (percent)		10%	[9],[21],[22],[33]	10%	[10],[17],[20],[26]
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Energy—Power 3
Rate (percent)	[9],[21],[27]	10%
Principal Amount	[12],[21],[27]	$ 2,344
Amortized Cost	[21],[27]	2,344
Fair Value	[3],[21],[27]	$ 0
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Letter of Credit, Energy—Power
Rate (percent)	[10],[16],[17]			10%
Principal Amount	[15],[16],[17]			$ 2,709
Amortized Cost	[16],[17]			2,709
Fair Value	[4],[16],[17]			$ 0
Investment, Identifier [Axis]: Pretium PKG Holdings, Inc., Materials
Variable rate (percent)		2.50%	[9],[11]	5%	[10],[13]
PIK Rate (percent)	[9],[11]	2.50%
Floor Rate (percent)		1%	[9],[11]	1%	[10],[13]
Principal Amount		$ 32,788	[11],[12]	$ 30,118	[13],[15]
Amortized Cost		32,326	[11]	29,634	[13]
Fair Value		$ 33,454	[3],[11]	$ 29,591	[4],[13]
Investment, Identifier [Axis]: Pretium PKG Holdings, Inc., Materials | Maximum
PIK Rate (percent)	[9],[11]	2.50%
Investment, Identifier [Axis]: Pro Mach Group, Inc., Capital Goods
Variable rate (percent)		3.50%	[9],[11]	4%	[10],[13]
Floor Rate (percent)		1%	[9],[11]	1%	[10],[13]
Principal Amount		$ 17,380	[11],[12]	$ 19,924	[13],[15]
Amortized Cost		17,428	[11]	19,979	[13]
Fair Value		$ 17,457	[3],[11]	$ 20,007	[4],[13]
Investment, Identifier [Axis]: Proampac PG Borrower LLC, Materials
Variable rate (percent)		4%	[9],[11]	4.50%	[10],[13]
Floor Rate (percent)		0.80%	[9],[11]	0.80%	[10],[13]
Principal Amount		$ 22,828	[11],[12]	$ 20,000	[13],[15]
Amortized Cost		22,840	[11]	19,994	[13]
Fair Value		$ 22,890	[3],[11]	$ 20,062	[4],[13]
Investment, Identifier [Axis]: RPC TopCo Inc., Consumer Durables & Apparel 1
Rate (percent)	[9],[21]	5%
Floor Rate (percent)	[9],[21]	1%
Principal Amount	[12],[21]	$ 21,970
Amortized Cost	[21]	21,599
Fair Value	[3],[21]	$ 21,640
Investment, Identifier [Axis]: RPC TopCo Inc., Consumer Durables & Apparel 2
Rate (percent)	[9],[21],[27]	5.50%
Floor Rate (percent)	[9],[21],[27]	1%
Principal Amount	[12],[21],[27]	$ 3,030
Amortized Cost	[21],[27]	3,030
Fair Value	[3],[21],[27]	$ 2,985
Investment, Identifier [Axis]: RealTruck Group, Inc, Automobiles & Components
Variable rate (percent)	[9],[11]	3.50%
Floor Rate (percent)	[9],[11]	0.80%
Principal Amount	[11],[12]	$ 24,756
Amortized Cost	[11]	24,025
Fair Value	[3],[11]	$ 24,398
Investment, Identifier [Axis]: Realtruck Group, Inc., Automobiles & Components
Variable rate (percent)	[10],[13],[14]			3.50%
Floor Rate (percent)	[10],[13],[14]			0.80%
Principal Amount	[13],[14],[15]			$ 19,956
Amortized Cost	[13],[14]			19,117
Fair Value	[4],[13],[14]			19,740
Investment, Identifier [Axis]: Revlon Intermediate Holdings IV LLC, Household & Personal Products
Rate (percent)	[9],[11]	6.88%
Floor Rate (percent)	[9],[11]	1%
Principal Amount	[11],[12]	$ 15,000
Amortized Cost	[11]	15,036
Fair Value	[3],[11]	$ 14,831
Investment, Identifier [Axis]: Ridgeback Resources Inc., Common Equity
Fair Value				$ 0		41,851
Investment, Identifier [Axis]: Ryan, LLC, Commercial & Professional Services 1
Variable rate (percent)	[9],[11]	3.50%
Floor Rate (percent)	[9],[11]	0.50%
Principal Amount	[11],[12]	$ 9,795
Amortized Cost	[11]	9,819
Fair Value	[3],[11]	$ 9,701
Investment, Identifier [Axis]: Ryan, LLC, Commercial & Professional Services 2
Variable rate (percent)	[9],[27]	3.50%
Floor Rate (percent)	[9],[27]	0.50%
Principal Amount	[12],[27]	$ 1,036
Amortized Cost	[27]	1,036
Fair Value	[3],[27]	$ 1,026
Investment, Identifier [Axis]: Ryan, LLC, Commerical & Professional Services 1
Variable rate (percent)	[10],[13],[14]			4.50%
Floor Rate (percent)	[10],[13],[14]			0.50%
Principal Amount	[13],[14],[15]			$ 9,844
Amortized Cost	[13],[14]			9,868
Fair Value	[4],[13],[14]			$ 9,890
Investment, Identifier [Axis]: Ryan, LLC, Commerical & Professional Services 2
Variable rate (percent)	[10],[14],[16]			4.50%
Floor Rate (percent)	[10],[14],[16]			0.50%
Principal Amount	[14],[15],[16]			$ 1,036
Amortized Cost	[14],[16]			1,039
Fair Value	[4],[14],[16]			$ 1,041
Investment, Identifier [Axis]: SRS Distribution Inc., Capital Goods
Variable rate (percent)	[10],[13],[14]			3.50%
Floor Rate (percent)	[10],[13],[14]			0.50%
Principal Amount	[13],[14],[15]			$ 19,924
Amortized Cost	[13],[14]			19,729
Fair Value	[4],[13],[14]			$ 19,982
Investment, Identifier [Axis]: ST EIP Holdings Inc., Energy—Midstream
Rate (percent)	[10],[13],[17]			6.30%
Principal Amount	[13],[15],[17]			$ 10,365
Amortized Cost	[13],[17]			9,951
Fair Value	[4],[13],[17]			9,874
Investment, Identifier [Axis]: ST EIP Holdings, Inc., Energy—Midstream
Rate (percent)	[9],[11],[21]	6.30%
Principal Amount	[11],[12],[21]	$ 10,199
Amortized Cost	[11],[21]	9,834
Fair Value	[3],[11],[21]	$ 9,828
Investment, Identifier [Axis]: SupplyOne, Inc., Materials
Variable rate (percent)	[9],[11]	4.25%
Floor Rate (percent)	[9],[11]
Principal Amount	[11],[12]	$ 8,955
Amortized Cost	[11]	8,972
Fair Value	[3],[11]	8,992
Investment, Identifier [Axis]: Sustainable Infrastructure Investments, LLC
Fair Value				39,427		51,098
Investment, Identifier [Axis]: Sustainable Infrastructure Investments, LLC 2
Fair Value		46,324		39,427
Investment, Identifier [Axis]: Sustainable Infrastructure Investments, LLC, Energy—Power
Principal Amount		60,603	[12],[21],[23],[38]	60,603	[15],[17],[19],[25]
Amortized Cost		43,150	[21],[23],[38]	43,150	[17],[19],[25]
Fair Value		$ 46,324	[3],[21],[23],[38]	$ 39,427	[4],[17],[19],[25]
Investment, Identifier [Axis]: TKC Holdings, Inc., Consumer Staples Distribution & Retail
Variable rate (percent)		5.50%	[9],[11]	5.50%	[10],[13]
Floor Rate (percent)		1%	[9],[11]	1%	[10],[13]
Principal Amount		$ 24,309	[11],[12]	$ 19,650	[13],[15]
Amortized Cost		23,381	[11]	18,681	[13]
Fair Value		24,294	[3],[11]	18,830	[4],[13]
Investment, Identifier [Axis]: Telpico, LLC, Common Equity
Fair Value		$ 0		$ 0		0
Investment, Identifier [Axis]: Telpico, LLC, Common Equity, Energy—Upstream
Number of Shares		50	[21],[22],[28],[31]	50	[17],[20],[24],[37]
Amortized Cost		$ 0	[21],[22],[28],[31]	$ 0	[17],[20],[24],[37]
Fair Value		$ 0	[3],[21],[22],[28],[31]	$ 0	[4],[17],[20],[24],[37]
Investment, Identifier [Axis]: Tenrgys, LLC, Common Equity, Energy—Upstream
Number of Shares		50	[21],[22],[28]	50	[17],[20],[24]
Amortized Cost		$ 7,571	[21],[22],[28]	$ 7,571	[17],[20],[24]
Fair Value		$ 230	[3],[21],[22],[28]	$ 4,418	[4],[17],[20],[24]
Investment, Identifier [Axis]: Tenrgys, LLC, Energy—Upstream
Variable rate (percent)		7.50%	[9],[11],[21]	7.50%	[10],[13],[17]
Floor Rate (percent)		1%	[9],[11],[21]	1%	[10],[13],[17]
Principal Amount		$ 20,537	[11],[12],[21]	$ 20,537	[13],[15],[17]
Amortized Cost		20,537	[11],[21]	20,537	[13],[17]
Fair Value		$ 20,049	[3],[11],[21]	$ 19,998	[4],[13],[17]
Investment, Identifier [Axis]: Tenrgys, LLC, Energy—Upstream | Maximum
PIK Rate (percent)		9.50%	[9],[11],[21]	9.50%	[10],[13],[17]
Investment, Identifier [Axis]: TruGreen, LP, Commercial & Professional Services
Variable rate (percent)		4%	[9],[11]	4%	[10],[13]
Floor Rate (percent)		0.80%	[9],[11]	0.80%	[10],[13]
Principal Amount		$ 24,718	[11],[12]	$ 19,910	[13],[15]
Amortized Cost		23,552	[11]	18,614	[13]
Fair Value		$ 23,964	[3],[11]	19,268	[4],[13]
Investment, Identifier [Axis]: U.S. Treasury Bills, U.S. Treasury Bills
Principal Amount	[39]			21,000
Amortized Cost	[39]			20,994
Fair Value	[4],[39]			$ 21,000
Investment, Identifier [Axis]: USA Compression Partners, LP, Preferred Equity, Energy—Midstream
Rate (percent)		9.80%		9.80%	[10],[13],[17],[19]
Number of Shares		28,561	[11],[21],[23]	79,336	[13],[17],[19]
Amortized Cost		$ 28,190	[11],[21],[23]	$ 78,091	[13],[17],[19]
Fair Value		$ 32,068	[3],[11],[21],[23]	98,333	[4],[13],[17],[19]
Investment, Identifier [Axis]: United Natural Foods, Inc., Consumer Staples Distribution & Retail
Variable rate (percent)	[9],[11],[23]	4.75%
Principal Amount	[11],[12],[23]	$ 20,948
Amortized Cost	[11],[23]	20,546
Fair Value	[3],[11],[23]	$ 21,052
Investment, Identifier [Axis]: Universal Entertainment Corp., Consumer Durables & Apparel
Rate (percent)	[9],[23]	9.90%
Principal Amount	[12],[23]	$ 9,625
Amortized Cost	[23]	9,533
Fair Value	[3],[23]	$ 9,655
Investment, Identifier [Axis]: Upstream Newco, Inc., Health Care Equipment & Services
Variable rate (percent)	[9],[11]	4.25%
Principal Amount	[11],[12]	$ 6,971
Amortized Cost	[11]	6,407
Fair Value	[3],[11]	$ 6,069
Investment, Identifier [Axis]: WMK, LLC, Consumer Discretionary Distribution & Retail 1
Variable rate (percent)	[9],[11],[21]	6.50%
Floor Rate (percent)	[9],[11],[21]	3%
Principal Amount	[11],[12],[21]	$ 31,050
Amortized Cost	[11],[21]	30,078
Fair Value	[3],[11],[21]	$ 30,429
Investment, Identifier [Axis]: WMK, LLC, Consumer Discretionary Distribution & Retail 2
Variable rate (percent)	[9],[21],[27]	6.50%
Floor Rate (percent)	[9],[21],[27]	3%
Principal Amount	[12],[21],[27]	$ 3,583
Amortized Cost	[21],[27]	3,583
Fair Value	[3],[21],[27]	3,512
Investment, Identifier [Axis]: Warren Resources, Inc.
Fair Value		0		23,823		23,584
Investment, Identifier [Axis]: Warren Resources, Inc., Common Equity
Fair Value		$ 0		$ 15,566		$ 36,982
Investment, Identifier [Axis]: Warren Resources, Inc., Common Equity, Energy—Upstream
Number of Shares	[17],[20],[25]			4,415,749
Amortized Cost	[17],[20],[25]			$ 20,754
Fair Value	[4],[17],[20],[25]			$ 15,566
Investment, Identifier [Axis]: Warren Resources, Inc., Energy—Upstream
Variable rate (percent)	[10],[13],[17],[25]			9%
PIK Rate (percent)		4%	[9],[21]	1%	[10],[13],[17],[25]
Floor Rate (percent)	[10],[13],[17],[25]			1%
Principal Amount		$ 31,163	[12],[21]	$ 23,823	[13],[15],[17],[25]
Amortized Cost		27,951	[21]	23,823	[13],[17],[25]
Fair Value		$ 26,683	[3],[21]	$ 23,823	[4],[13],[17],[25]
Investment, Identifier [Axis]: Warren Resources, Inc., Energy—Upstream | Maximum
PIK Rate (percent)		4%	[9],[21]	1%	[10],[13],[17],[25]
Investment, Identifier [Axis]: Wattbridge Inc., Energy—Power
Variable rate (percent)	[10],[13],[17]			9.85%
Floor Rate (percent)	[10],[13],[17]			1.80%
Principal Amount	[13],[15],[17]			$ 42,938
Amortized Cost	[13],[17]			42,938
Fair Value	[4],[13],[17]			$ 41,882
Investment, Identifier [Axis]: Weber-Stephen Products LLC, Consumer Durables & Apparel
Variable rate (percent)	[9],[11]	3.25%
Floor Rate (percent)	[9],[11]	0.80%
Principal Amount	[11],[12]	$ 26,119
Amortized Cost	[11]	24,094
Fair Value	[3],[11]	$ 24,708
Investment, Identifier [Axis]: WildBrain Ltd., Media & Entertainment 1
Variable rate (percent)	[9],[21],[23]	6%
Floor Rate (percent)	[9],[21],[23]	1%
Principal Amount	[12],[21],[23]	$ 1,771
Amortized Cost	[21],[23]	1,705
Fair Value	[3],[21],[23]	$ 1,736
Investment, Identifier [Axis]: WildBrain Ltd., Media & Entertainment 2
Variable rate (percent)	[9],[11],[21],[23]	6%
Floor Rate (percent)	[9],[11],[21],[23]	1%
Principal Amount	[11],[12],[21],[23]	$ 31,547
Amortized Cost	[11],[21],[23]	30,942
Fair Value	[3],[11],[21],[23]	$ 30,916
Investment, Identifier [Axis]: WildBrain Ltd., Media & Entertainment 3
Variable rate (percent)	[9],[21],[23],[27]	6%
Floor Rate (percent)	[9],[21],[23],[27]	1%
Principal Amount	[12],[21],[23],[27]	$ 1,602
Amortized Cost	[21],[23],[27]	1,602
Fair Value	[3],[21],[23],[27]	$ 1,570
Net Senior Secured Loans—First Lien
Percent of net assets		77.80%	[1]	52.90%	[2]
Amortized Cost		$ 1,217,691	[1]	$ 878,013	[2]
Fair Value		1,209,850	[1],[3]	825,158	[2],[4]
Total Senior Secured Loans—First Lien
Amortized Cost		1,255,954	[1]	889,245	[2]
Fair Value		1,248,113	[1],[3]	836,390	[2],[4]
Unfunded Loan Commitments
Amortized Cost		(38,263)	[1]	(11,232)	[2]
Fair Value		$ (38,263)	[1],[3]	$ (11,232)	[2],[4]
Net Senior Secured Loans—Second Lien
Percent of net assets		5.30%	[1]	3.50%	[2]
Amortized Cost		$ 82,014	[1]	$ 55,064
Fair Value		$ 81,820	[1],[3]	54,424
Total Senior Secured Loans—Second Lien
Amortized Cost	[2]			55,064
Fair Value	[2],[4]			$ 54,424
Senior Secured Bonds
Percent of net assets		6.90%	[1]	5.40%	[2]
Amortized Cost		$ 106,242	[1]	$ 82,793
Fair Value		$ 106,875	[1],[3]	84,468	[4]
Subordinated Debt
Percent of net assets	[1]	2.50%
Amortized Cost		$ 37,279	[1]	0
Fair Value		$ 38,103	[1],[3]	0
Asset Based Finance
Percent of net assets	[1]	1.70%
Amortized Cost		$ 28,525		0
Fair Value		$ 26,616		$ 0
Sustainable Infrastructure Investments, LLC
Percent of net assets		3%	[1]	2.50%	[2]
Amortized Cost		$ 43,150	[1]	$ 43,150
Fair Value		$ 46,324	[1],[3]	$ 39,427
Equity/Other
Percent of net assets		11.70%	[1]	31.90%	[2]
Amortized Cost		$ 241,552	[1]	$ 463,911	[2]
Fair Value		182,464	[1],[3]	$ 498,719	[2],[4]
Short-Term Investments
Percent of net assets	[2]			1.30%
Amortized Cost		0		$ 20,994	[2]
Fair Value		$ 0		$ 21,000	[2],[4]
Cash and Cash Equivalents
Percent of net assets		15.10%	[1],[7]	31.10%	[2],[8]
[1]Security may be an obligation of one or more entities affiliated with the named company.[2]Security may be an obligation of one or more entities affiliated with the named company.[3]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.[4]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.[5]Includes the effect of swap contracts.[6]Includes the effect of swap contracts.[7]Includes $33,275 held in Allspring Government Money Market Fund with a 7-day yield of 4.86% as of September 30, 2024.[8]Includes $23,098 held in Allspring Government Money Market Fund with a 7-day yield of 5.3% as of December 31, 2023.[9]Certain variable rate securities in the Company’s portfolio bear interest at a rate determined by a publicly disclosed base rate plus a basis point spread. As of September 30, 2024, the one-month and three-month Secured Overnight Financing Rate, or SOFR, or S, was 4.85% and 4.59%, respectively, and the Overnight Bank Funding Rate, or OBFR, was 4.83%. SOFR based contracts may include a credit spread adjustment that is charged in addition to the base rate and basis point spread. PIK means paid-in-kind. PIK income accruals may be adjusted based on the fair value of the underlying investment. Variable rate securities with no floor rate use the respective benchmark rate in all cases.[10]Certain variable rate securities in the Company’s portfolio bear interest at a rate determined by a publicly disclosed base rate plus a basis point spread. As of December 31, 2023, the one-month and three-month Secured Overnight Financing Rate, or SOFR, or S, was 5.35% and 5.33%, respectively, and the Overnight Bank Funding Rate, or OBFR, was 5.32%. SOFR based contracts may include a credit spread adjustment that is charged in addition to the base rate and basis point spread. PIK means paid-in-kind. PIK income accruals may be adjusted based on the fair value of the underlying investment. Variable rate securities with no floor rate use the respective benchmark rate in all cases. Portfolio Company Fair Value at December 31, 2022 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at December 31, 2023 Interest Income (3) PIK Income (3) Dividend Income (3) Senior Secured Loans—First Lien Allied Downhole Technologies, LLC $ 8,436 $ 138 $ (8,574) $ — $ — $ — $ 256 $ 139 $ — Allied Wireline Services, LLC 63,888 6,389 — — (48,077) 22,200 — 2,910 — Warren Resources, Inc. 23,584 239 — — — 23,823 3,464 179 — Sustainable Infrastructure Investments, LLC Sustainable Infrastructure Investments, LLC 51,098 — (11,364) — (307) 39,427 — — 8,324 Equity/Other Allied Wireline Services, LLC, Common Equity 10,463 — — — (10,463) — — — — Allied Wireline Services, LLC, Warrants — — — — — — — — — Warren Resources, Inc., Common Equity 36,982 — — — (21,416) 15,566 — — — $ 194,451 $ 6,766 $ (19,938) $ — $ (80,263) $ 101,016 $ 3,720 $ 3,228 $ 8,324 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest, PIK and dividend income presented for the year ended December 31, 2023. Portfolio Company Fair Value at December 31, 2023 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at September 30, 2024 Interest Income (3) PIK Income (3) Senior Secured Loans—First Lien Permian Production Holdings, LLC $ 4,816 $ 161 $ (2,045) $ 148 $ (234) $ 2,846 $ 378 $ 63 Asset Based Finance Bridge Street CLO IV Ltd., Subordinated Notes — 23,711 (222) — (1,909) 21,580 1,776 — Bridge Street Warehouse CLO IV Ltd. — 22,729 (22,729) — — — — 729 Bridge Street Warehouse CLO V Ltd. — 5,036 — — — 5,036 — 36 Equity/Other GWP Midstream Holdco, LLC, Common Equity 1,661 — — — 717 2,378 — — Harvest Oil & Gas Corp., Common Equity 271 — — — 94 365 — — Permian Production Holdings, LLC, Common Equity 748 — — — (748) — — — Telpico, LLC, Common Equity — — — — — — — — $ 7,496 $ 51,637 $ (24,996) $ 148 $ (2,080) $ 32,205 $ 2,154 $ 828 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest and PIK income presented for the nine months ended September 30, 2024. Portfolio Company Fair Value at December 31, 2022 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at December 31, 2023 Interest Income (3) PIK Income (3) Senior Secured Loans—First Lien Permian Production Holdings, LLC $ 4,767 $ 231 $ — $ — $ (182) $ 4,816 $ 675 $ 97 Equity/Other GWP Midstream Holdco, LLC, Common Equity 5,044 — (3,112) 3,112 (3,383) 1,661 — — Harvest Oil & Gas Corp., Common Equity 810 — (641) — 102 271 — — Limetree Bay Energy, LLC, Class A Units 1,885 246 — (21,704) 19,573 — — — Permian Production Holdings, LLC, Common Equity 11,420 — — — (10,672) 748 — — Ridgeback Resources Inc., Common Equity 41,851 — (35,240) (11,359) 4,748 — — — Telpico, LLC, Common Equity — — — — — — — — $ 65,777 $ 477 $ (38,993) $ (29,951) $ 10,186 $ 7,496 $ 675 $ 97 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest and PIK income presented for the year ended December 31, 2023. Portfolio Company Fair Value at December 31, 2023 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at September 30, 2024 Interest Income (3) PIK Income (3) Senior Secured Loans—First Lien Allied Wireline Services, LLC $ 22,200 $ — $ (19,282) $ (50,995) $ 48,077 $ — $ — $ — Warren Resources, Inc. 23,823 60 (20,357) (3,526) — — 1,508 60 Sustainable Infrastructure Investments, LLC Sustainable Infrastructure Investments, LLC 39,427 — — — 6,897 46,324 — — Equity/Other Allied Wireline Services, LLC, Common Equity — — — (1,527) 1,527 — — — Allied Wireline Services, LLC, Warrants — — — — — — — — Warren Resources, Inc., Common Equity 15,566 127 (13,578) (7,303) 5,188 — — — $ 101,016 $ 187 $ (53,217) $ (63,351) $ 61,689 $ 46,324 $ 1,508 $ 60 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest and PIK income presented for the nine months ended September 30, 2024.

Unaudited Consolidated Schedu_2

Unaudited Consolidated Schedule of Investments (Parenthetical) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended			12 Months Ended
		Sep. 30, 2024		Sep. 30, 2023	Sep. 30, 2024		Sep. 30, 2023	Dec. 31, 2023
Derivative [Line Items]
Qualifying assets, percent of total assets		82.50%			82.50%			80.80%
Investments, at fair value		$ 1,692,052	[1],[2]		$ 1,692,052	[1],[2]		$ 1,523,196	[3],[4]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[3],[4]				1,523,196
Net Realized Gain (Loss)					4,461		$ (56,305)
Net Change in Unrealized Appreciation (Depreciation)					(43,672)		(84,491)
Fair Value, ending balance		1,692,052	[1],[2]		1,692,052	[1],[2]		1,523,196	[3],[4]
Paid-in-kind interest income					8,681		14,174
Amortized Cost		1,756,453	[1]		1,756,453	[1]		1,543,925	[3]
Non-Controlled/Affiliated
Derivative [Line Items]
Investments, at fair value		32,205			32,205			7,496
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					7,496		65,777	65,777
Gross Additions					51,637	[5]		477	[6]
Gross Reductions					(24,996)	[7]		(38,993)	[8]
Net Realized Gain (Loss)		77		$ (163)	148		(33,063)	(29,951)
Net Change in Unrealized Appreciation (Depreciation)		(1,552)		253	(2,080)		15,781	10,186
Fair Value, ending balance		32,205			32,205			7,496
Interest income					2,154	[9]		675	[10]
Paid-in-kind interest income		55		25	828	[9]	73	97	[10]
Amortized Cost		52,390			52,390			25,601
Controlled/affiliated
Derivative [Line Items]
Investments, at fair value		46,324			46,324			101,016
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					101,016		194,451	194,451
Gross Additions					187	[11]		6,766	[12]
Gross Reductions					(53,217)	[13]		(19,938)	[14]
Net Realized Gain (Loss)		(3,604)		0	(63,351)		0	0
Net Change in Unrealized Appreciation (Depreciation)		1,697		(53,363)	61,689		(64,259)	(80,263)
Fair Value, ending balance		46,324			46,324			101,016
Interest income					1,508	[15]		3,720	[16]
Paid-in-kind interest income		0		$ 86	60	[15]	318	3,228	[16]
Dividend income	[16]							8,324
Amortized Cost		$ 43,150			$ 43,150			$ 159,531
One-Month Secured Overnight Financing Rate
Derivative [Line Items]
Investment, variable rate		4.85%			4.85%			5.35%
Three-Month Secured Overnight Financing Rate
Derivative [Line Items]
Investment, variable rate		4.59%			4.59%			5.33%
Overnight Bank Funding Rate
Derivative [Line Items]
Investment, variable rate		4.83%			4.83%			5.32%
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., Capital Goods
Derivative [Line Items]
Investments, at fair value	[2],[17]	$ 19,949			$ 19,949
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	19,949			19,949
Amortized Cost	[17]	19,818			19,818
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., Capital Goods 1
Derivative [Line Items]
Investments, at fair value	[4],[18],[19]							$ 16,625
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[19]				16,625
Fair Value, ending balance	[4],[18],[19]							16,625
Amortized Cost	[18],[19]							16,398
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., Capital Goods 2
Derivative [Line Items]
Investments, at fair value	[4],[19],[20]							3,500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[19],[20]				3,500
Fair Value, ending balance	[4],[19],[20]							3,500
Amortized Cost	[19],[20]							3,452
Investment, Identifier [Axis]: AIRRO (Mauritius) Holdings II, Energy—Power
Derivative [Line Items]
Investments, at fair value	[4],[21],[22],[23]							23,050
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[22],[23]				23,050
Fair Value, ending balance	[4],[21],[22],[23]							23,050
Amortized Cost	[21],[22],[23]							20,779
Investment, Identifier [Axis]: AIRRO (Mauritius) Holdings II, Warrants, Strike: $1.00, Energy—Power
Derivative [Line Items]
Investments, at fair value	[4],[21],[22],[23],[24]							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[22],[23],[24]				0
Fair Value, ending balance	[4],[21],[22],[23],[24]							0
Amortized Cost	[21],[22],[23],[24]							2,652
Investment, Identifier [Axis]: APTIM Corp., Commercial & Professional Services
Derivative [Line Items]
Investments, at fair value	[2],[17]	27,775			27,775
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	27,775			27,775
Amortized Cost	[17]	27,500			27,500
Investment, Identifier [Axis]: Abaco Energy Technologies LLC, Common Equity, Energy—Service & Equipment
Derivative [Line Items]
Investments, at fair value	[4],[21],[24]							1,375
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[24]				1,375
Fair Value, ending balance	[4],[21],[24]							1,375
Amortized Cost	[21],[24]							6,944
Investment, Identifier [Axis]: Abaco Energy Technologies LLC, Preferred Equity, Energy—Service & Equipment
Derivative [Line Items]
Investments, at fair value	[4],[21],[24]							10,159
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[24]				10,159
Fair Value, ending balance	[4],[21],[24]							10,159
Amortized Cost	[21],[24]							1,447
Investment, Identifier [Axis]: Acrisure, LLC, Insurance
Derivative [Line Items]
Investments, at fair value		18,702	[2],[17]		18,702	[2],[17]		20,251	[4],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				20,251
Fair Value, ending balance		18,702	[2],[17]		18,702	[2],[17]		20,251	[4],[18]
Amortized Cost		18,789	[17]		18,789	[17]		20,033	[18]
Investment, Identifier [Axis]: Aimbridge Acquisition Co. Inc., Consumer Services
Derivative [Line Items]
Investments, at fair value		25,999	[2],[17]		25,999	[2],[17]		20,380	[4],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				20,380
Fair Value, ending balance		25,999	[2],[17]		25,999	[2],[17]		20,380	[4],[18]
Amortized Cost		25,844	[17]		25,844	[17]		21,036	[18]
Investment, Identifier [Axis]: AirSwift Holdings, Ltd., Common Equity, Commercial & Professional Services
Derivative [Line Items]
Investments, at fair value		3,214	[2],[25],[26],[27]		3,214	[2],[25],[26],[27]		3,413	[4],[21],[23],[24]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[23],[24]				3,413
Fair Value, ending balance		3,214	[2],[25],[26],[27]		3,214	[2],[25],[26],[27]		3,413	[4],[21],[23],[24]
Amortized Cost		5,136	[25],[26],[27]		5,136	[25],[26],[27]		6,029	[21],[23],[24]
Investment, Identifier [Axis]: Allegiant Travel Co., Transportation
Derivative [Line Items]
Investments, at fair value		$ 12,179	[2],[27]		$ 12,179	[2],[27]		$ 10,385	[4],[23]
Rate (percent)		7.30%	[27],[28]		7.30%	[27],[28]		7.30%	[23],[29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[23]				$ 10,385
Fair Value, ending balance		$ 12,179	[2],[27]		12,179	[2],[27]		$ 10,385	[4],[23]
Amortized Cost		11,357	[27]		11,357	[27]		9,614	[23]
Investment, Identifier [Axis]: Allied Downhole Technologies, LLC
Derivative [Line Items]
Investments, at fair value								0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					0		8,436	8,436
Gross Additions	[12]							138
Gross Reductions	[14]							(8,574)
Net Realized Gain (Loss)								0
Net Change in Unrealized Appreciation (Depreciation)								0
Fair Value, ending balance								0
Interest income	[16]							256
Paid-in-kind interest income	[16]							139
Dividend income	[16]							0
Investment, Identifier [Axis]: Allied Universal Holdco LLC, Consumer Services
Derivative [Line Items]
Investments, at fair value	[2],[17]	22,590			22,590
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	22,590			22,590
Amortized Cost	[17]	22,528			22,528
Investment, Identifier [Axis]: Allied Universal Holdco LLC, Consumer Services 1
Derivative [Line Items]
Investments, at fair value	[4],[18]							9,998
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				9,998
Fair Value, ending balance	[4],[18]							9,998
Amortized Cost	[18]							9,841
Investment, Identifier [Axis]: Allied Universal Holdco LLC, Consumer Services 2
Derivative [Line Items]
Investments, at fair value	[4],[18]							9,903
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				9,903
Fair Value, ending balance	[4],[18]							9,903
Amortized Cost	[18]							9,627
Investment, Identifier [Axis]: Allied Wireline Services, LLC
Derivative [Line Items]
Investments, at fair value		0			0			22,200
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					22,200		63,888	63,888
Gross Additions					0	[11]		6,389	[12]
Gross Reductions					(19,282)	[13]		0	[14]
Net Realized Gain (Loss)					(50,995)			0
Net Change in Unrealized Appreciation (Depreciation)					48,077			(48,077)
Fair Value, ending balance		0			0			22,200
Interest income					0	[15]		0	[16]
Paid-in-kind interest income					0	[15]		2,910	[16]
Dividend income	[16]							0
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Common Equity
Derivative [Line Items]
Investments, at fair value		0			0			0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					0		10,463	10,463
Gross Additions					0	[11]		0	[12]
Gross Reductions					0	[13]		0	[14]
Net Realized Gain (Loss)					(1,527)			0
Net Change in Unrealized Appreciation (Depreciation)					1,527			(10,463)
Fair Value, ending balance		0			0			0
Interest income					0	[15]		0	[16]
Paid-in-kind interest income					0	[15]		0	[16]
Dividend income	[16]							0
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Common Equity, Energy—Service & Equipment
Derivative [Line Items]
Investments, at fair value	[4],[21],[24],[30],[31]							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[24],[30],[31]				0
Fair Value, ending balance	[4],[21],[24],[30],[31]							0
Amortized Cost	[21],[24],[30],[31]							1,527
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Energy—Service & Equipment
Derivative [Line Items]
Investments, at fair value	[4],[21],[24],[31],[32]							22,200
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[24],[31],[32]				22,200
Fair Value, ending balance	[4],[21],[24],[31],[32]							22,200
Amortized Cost	[21],[24],[31],[32]							70,277
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Warrants
Derivative [Line Items]
Investments, at fair value		0			0			0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					0		0	0
Gross Additions					0	[11]		0	[12]
Gross Reductions					0	[13]		0	[14]
Net Realized Gain (Loss)					0			0
Net Change in Unrealized Appreciation (Depreciation)					0			0
Fair Value, ending balance		0			0			0
Interest income					0	[15]		0	[16]
Paid-in-kind interest income					0	[15]		0	[16]
Dividend income	[16]							0
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Warrants, Energy—Service & Equipment
Derivative [Line Items]
Investments, at fair value	[4],[21],[24],[30],[31]							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[24],[30],[31]				0
Fair Value, ending balance	[4],[21],[24],[30],[31]							0
Amortized Cost	[21],[24],[30],[31]							0
Investment, Identifier [Axis]: Allspring Government Money Market Fund - Select Class, Money Market Fund
Derivative [Line Items]
Investments, at fair value		$ 33,275			$ 33,275			$ 23,098
Rate (percent)		4.86%			4.86%			5.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					$ 23,098
Fair Value, ending balance		$ 33,275			33,275			$ 23,098
Investment, Identifier [Axis]: American Auto Auction Group, LLC, Capital Goods
Derivative [Line Items]
Investments, at fair value		23,933	[2],[17]		23,933	[2],[17]		9,858	[4],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				9,858
Fair Value, ending balance		23,933	[2],[17]		23,933	[2],[17]		9,858	[4],[18]
Amortized Cost		23,560	[17]		23,560	[17]		9,752	[18]
Investment, Identifier [Axis]: Ansira Partners, Inc., Media & Entertainment 1
Derivative [Line Items]
Investments, at fair value	[2],[25]	383			383
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25]	383			383
Amortized Cost	[25]	295			295
Investment, Identifier [Axis]: Ansira Partners, Inc., Media & Entertainment 2
Derivative [Line Items]
Investments, at fair value	[2],[17],[25]	35,415			35,415
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17],[25]	35,415			35,415
Amortized Cost	[17],[25]	35,432			35,432
Investment, Identifier [Axis]: Ansira Partners, Inc., Media & Entertainment 3
Derivative [Line Items]
Investments, at fair value	[2],[25],[33]	3,446			3,446
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[33]	3,446			3,446
Amortized Cost	[25],[33]	3,534			3,534
Investment, Identifier [Axis]: Arena Energy, LP, Contingent Value Rights, Energy—Upstream
Derivative [Line Items]
Investments, at fair value		187	[2],[25]		187	[2],[25]		571	[4],[21],[24]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[24]				571
Fair Value, ending balance		187	[2],[25]		187	[2],[25]		571	[4],[21],[24]
Amortized Cost		351	[25]		351	[25]		351	[21],[24]
Investment, Identifier [Axis]: Aretec Escrow Issuer Inc., Financial Services
Derivative [Line Items]
Investments, at fair value	[4],[18]							$ 7,447
Rate (percent)	[18],[29]							10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				7,447
Fair Value, ending balance	[4],[18]							$ 7,447
Amortized Cost	[18]							7,000
Investment, Identifier [Axis]: Aretec Escrow Issuer, Inc., Financial Services
Derivative [Line Items]
Investments, at fair value	[2],[17]	$ 2,131			$ 2,131
Rate (percent)	[17],[28]	10%			10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	$ 2,131			$ 2,131
Amortized Cost	[17]	2,000			2,000
Investment, Identifier [Axis]: Aretec Group, Inc., Financial Services
Derivative [Line Items]
Investments, at fair value		6,671	[2],[17]		6,671	[2],[17]		9,358	[4],[18],[19]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[19]				9,358
Fair Value, ending balance		6,671	[2],[17]		6,671	[2],[17]		9,358	[4],[18],[19]
Amortized Cost		6,772	[17]		6,772	[17]		9,071	[18],[19]
Investment, Identifier [Axis]: Ascent Resources Utica Holdings, LLC, Common Equity, Energy—Upstream
Derivative [Line Items]
Investments, at fair value		36,342	[2],[25],[26],[34]		36,342	[2],[25],[26],[34]		39,545	[4],[21],[24],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[24],[30]				39,545
Fair Value, ending balance		36,342	[2],[25],[26],[34]		36,342	[2],[25],[26],[34]		39,545	[4],[21],[24],[30]
Amortized Cost		42,739	[25],[26],[34]		42,739	[25],[26],[34]		44,573	[21],[24],[30]
Investment, Identifier [Axis]: Auris Luxembourg III S.a r.l, Health Care Equipment & Services
Derivative [Line Items]
Investments, at fair value		22,838	[2],[17],[27]		22,838	[2],[17],[27]		20,079	[4],[18],[23]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[23]				20,079
Fair Value, ending balance		22,838	[2],[17],[27]		22,838	[2],[17],[27]		20,079	[4],[18],[23]
Amortized Cost		22,697	[17],[27]		22,697	[17],[27]		19,912	[18],[23]
Investment, Identifier [Axis]: Aveanna Healthcare LLC, Health Care Equipment & Services
Derivative [Line Items]
Investments, at fair value		20,315	[2],[17]		20,315	[2],[17]		14,852	[4],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				14,852
Fair Value, ending balance		20,315	[2],[17]		20,315	[2],[17]		14,852	[4],[18]
Amortized Cost		18,817	[17]		18,817	[17]		14,054	[18]
Investment, Identifier [Axis]: BCPE Empire Holdings, Inc., Consumer Services
Derivative [Line Items]
Investments, at fair value		22,323	[2],[17]		22,323	[2],[17]		24,998	[4],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				24,998
Fair Value, ending balance		22,323	[2],[17]		22,323	[2],[17]		24,998	[4],[18]
Amortized Cost		22,359	[17]		22,359	[17]		24,983	[18]
Investment, Identifier [Axis]: Bridge Street CLO IV Ltd., Subordinated Notes
Derivative [Line Items]
Investments, at fair value		21,580			21,580			0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					0
Gross Additions	[5]				23,711
Gross Reductions	[7]				(222)
Net Realized Gain (Loss)					0
Net Change in Unrealized Appreciation (Depreciation)					(1,909)
Fair Value, ending balance		21,580			21,580			0
Interest income	[9]				1,776
Paid-in-kind interest income	[9]				0
Investment, Identifier [Axis]: Bridge Street CLO IV Ltd., Subordinated Notes, Financial Services
Derivative [Line Items]
Investments, at fair value	[2],[25],[27],[35],[36],[37]	$ 21,580			$ 21,580
Rate (percent)	[25],[27],[28],[35],[36],[37]	18.20%			18.20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[27],[35],[36],[37]	$ 21,580			$ 21,580
Amortized Cost	[25],[27],[35],[36],[37]	23,489			23,489
Investment, Identifier [Axis]: Bridge Street Warehouse CLO IV Ltd., Financial Services
Derivative [Line Items]
Investments, at fair value		$ 21,580			$ 21,580
Net assets (percent)		1.40%			1.40%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance		$ 21,580			$ 21,580
Investment, Identifier [Axis]: Bridge Street Warehouse CLO IV, Ltd.
Derivative [Line Items]
Investments, at fair value		0			0			0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					0
Gross Additions	[5]				22,729
Gross Reductions	[7]				(22,729)
Net Realized Gain (Loss)					0
Net Change in Unrealized Appreciation (Depreciation)					0
Fair Value, ending balance		0			0			0
Interest income	[9]				0
Paid-in-kind interest income	[9]				729
Investment, Identifier [Axis]: Bridge Street Warehouse CLO V Ltd., Financial Services
Derivative [Line Items]
Investments, at fair value	[2],[25],[27],[37],[38]	$ 5,036			$ 5,036
Rate (percent)	[25],[27],[28],[37],[38]	2.90%			2.90%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[27],[37],[38]	$ 5,036			$ 5,036
Amortized Cost	[25],[27],[37],[38]	5,036			5,036
Investment, Identifier [Axis]: Bridge Street Warehouse CLO V, Ltd.
Derivative [Line Items]
Investments, at fair value		5,036			5,036			0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					0
Gross Additions	[5]				5,036
Gross Reductions	[7]				0
Net Realized Gain (Loss)					0
Net Change in Unrealized Appreciation (Depreciation)					0
Fair Value, ending balance		5,036			5,036			0
Interest income	[9]				0
Paid-in-kind interest income	[9]				36
Investment, Identifier [Axis]: Brock Holdings III, LLC, Capital Goods
Derivative [Line Items]
Investments, at fair value	[2],[17],[27]	8,589			8,589
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17],[27]	8,589			8,589
Amortized Cost	[17],[27]	8,339			8,339
Investment, Identifier [Axis]: CCS-CMGC Holdings, Inc., Health Care Equipment & Services
Derivative [Line Items]
Investments, at fair value		17,525	[2],[17],[26],[39]		17,525	[2],[17],[26],[39]		18,222	[4],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				18,222
Fair Value, ending balance		17,525	[2],[17],[26],[39]		17,525	[2],[17],[26],[39]		18,222	[4],[18]
Amortized Cost		24,430	[17],[26],[39]		24,430	[17],[26],[39]		18,225	[18]
Investment, Identifier [Axis]: CPM Holdings, Inc., Capital Goods
Derivative [Line Items]
Investments, at fair value		23,616	[2],[17]		23,616	[2],[17]		20,092	[4],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				20,092
Fair Value, ending balance		23,616	[2],[17]		23,616	[2],[17]		20,092	[4],[18]
Amortized Cost		24,879	[17]		24,879	[17]		20,038	[18]
Investment, Identifier [Axis]: Charlotte Buyer, Inc., Health Care Equipment & Services
Derivative [Line Items]
Investments, at fair value		17,913	[2],[17]		17,913	[2],[17]		19,952	[4],[18],[19]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[19]				19,952
Fair Value, ending balance		17,913	[2],[17]		17,913	[2],[17]		19,952	[4],[18],[19]
Amortized Cost		17,844	[17]		17,844	[17]		19,937	[18],[19]
Investment, Identifier [Axis]: Chinos Intermediate 2, LLC, Consumer Discretionary Distribution & Retail
Derivative [Line Items]
Investments, at fair value	[2],[40]	16,120			16,120
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[40]	16,120			16,120
Amortized Cost	[40]	15,720			15,720
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 1
Derivative [Line Items]
Investments, at fair value		2,179	[2],[25]		2,179	[2],[25]		21,098	[4],[18],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[21]				21,098
Fair Value, ending balance		2,179	[2],[25]		2,179	[2],[25]		21,098	[4],[18],[21]
Amortized Cost		2,151	[25]		2,151	[25]		20,915	[18],[21]
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 2
Derivative [Line Items]
Investments, at fair value		21,031	[2],[17],[25]		21,031	[2],[17],[25]		2,712	[4],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[20],[21]				2,712
Fair Value, ending balance		21,031	[2],[17],[25]		21,031	[2],[17],[25]		2,712	[4],[20],[21]
Amortized Cost		20,758	[17],[25]		20,758	[17],[25]		2,688	[20],[21]
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 3
Derivative [Line Items]
Investments, at fair value		542	[2],[25]		542	[2],[25]		1,356	[4],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[20],[21]				1,356
Fair Value, ending balance		542	[2],[25]		542	[2],[25]		1,356	[4],[20],[21]
Amortized Cost		538	[25]		538	[25]		1,344	[20],[21]
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 4
Derivative [Line Items]
Investments, at fair value	[2],[25],[33]	545			545
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[33]	545			545
Amortized Cost	[25],[33]	538			538
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 5
Derivative [Line Items]
Investments, at fair value	[2],[25],[33]	813			813
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[33]	813			813
Amortized Cost	[25],[33]	806			806
Investment, Identifier [Axis]: Cirque Du Soleil Holding USA Newco, Inc., Financial Services
Derivative [Line Items]
Investments, at fair value	[4],[18],[19]							6,372
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[19]				6,372
Fair Value, ending balance	[4],[18],[19]							6,372
Amortized Cost	[18],[19]							6,331
Investment, Identifier [Axis]: Cirque Du Soleil Holding USA Newco, Inc., Media & Entertainment
Derivative [Line Items]
Investments, at fair value	[2],[17],[27]	8,234			8,234
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17],[27]	8,234			8,234
Amortized Cost	[17],[27]	8,278			8,278
Investment, Identifier [Axis]: Citizen Energy Operating, LLC, Energy—Upstream
Derivative [Line Items]
Investments, at fair value		32,210	[2],[17],[25]		32,210	[2],[17],[25]		34,426	[4],[18],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[21]				34,426
Fair Value, ending balance		32,210	[2],[17],[25]		32,210	[2],[17],[25]		34,426	[4],[18],[21]
Amortized Cost		31,612	[17],[25]		31,612	[17],[25]		34,527	[18],[21]
Investment, Identifier [Axis]: Clear Channel Outdoor Holdings, Inc., Media & Entertainment
Derivative [Line Items]
Investments, at fair value		12,489	[2],[17],[27]		12,489	[2],[17],[27]		19,829	[4],[18],[23]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[23]				19,829
Fair Value, ending balance		12,489	[2],[17],[27]		12,489	[2],[17],[27]		19,829	[4],[18],[23]
Amortized Cost		12,307	[17],[27]		12,307	[17],[27]		19,551	[18],[23]
Investment, Identifier [Axis]: Clydesdale Acquisition Holdings Inc., Financials Services
Derivative [Line Items]
Investments, at fair value	[4],[18]							20,061
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				20,061
Fair Value, ending balance	[4],[18]							20,061
Amortized Cost	[18]							19,740
Investment, Identifier [Axis]: Cop Village Green Acquisitions, Inc., Real Estate Management & Development 1
Derivative [Line Items]
Investments, at fair value	[2],[25]	12,495			12,495
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25]	12,495			12,495
Amortized Cost	[25]	12,495			12,495
Investment, Identifier [Axis]: Cop Village Green Acquisitions, Inc., Real Estate Management & Development 2
Derivative [Line Items]
Investments, at fair value	[2],[25],[33]	9,762			9,762
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[33]	9,762			9,762
Amortized Cost	[25],[33]	9,762			9,762
Investment, Identifier [Axis]: Cox Oil Offshore, LLC, Volumetric Production Payments, Energy—Upstream
Derivative [Line Items]
Investments, at fair value	[4],[21],[41],[42]							$ 1,234
Rate (percent)	[21],[29],[41],[42]							12.90%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[41],[42]				1,234
Fair Value, ending balance	[4],[21],[41],[42]							$ 1,234
Amortized Cost	[21],[41],[42]							1,129
Investment, Identifier [Axis]: Crown SubSea Communication Holding, Inc., Capital Goods
Derivative [Line Items]
Investments, at fair value	[2],[17]	6,029			6,029
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	6,029			6,029
Amortized Cost	[17]	5,929			5,929
Investment, Identifier [Axis]: Crown SubSea Communications Holding, Inc., Capital Goods 1
Derivative [Line Items]
Investments, at fair value	[4],[18],[19]							4,534
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[19]				4,534
Fair Value, ending balance	[4],[18],[19]							4,534
Amortized Cost	[18],[19]							4,523
Investment, Identifier [Axis]: Crown SubSea Communications Holding, Inc., Capital Goods 2
Derivative [Line Items]
Investments, at fair value	[4],[18],[19]							5,468
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[19]				5,468
Fair Value, ending balance	[4],[18],[19]							5,468
Amortized Cost	[18],[19]							5,445
Investment, Identifier [Axis]: Delivery Hero Finco LLC, Consumer Services
Derivative [Line Items]
Investments, at fair value	[2],[27]	25,019			25,019
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[27]	25,019			25,019
Amortized Cost	[27]	24,802			24,802
Investment, Identifier [Axis]: Digicel International Finance Ltd., Telecommunication Services
Derivative [Line Items]
Investments, at fair value	[2],[17]	19,983			19,983
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	19,983			19,983
Amortized Cost	[17]	19,486			19,486
Investment, Identifier [Axis]: Electrical Components International, Inc., Capital Goods 1
Derivative [Line Items]
Investments, at fair value	[2],[17],[25]	46,395			46,395
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17],[25]	46,395			46,395
Amortized Cost	[17],[25]	46,390			46,390
Investment, Identifier [Axis]: Electrical Components International, Inc., Capital Goods 2
Derivative [Line Items]
Investments, at fair value	[2],[25],[33]	2,551			2,551
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[33]	2,551			2,551
Amortized Cost	[25],[33]	2,600			2,600
Investment, Identifier [Axis]: Engineered Machinery Holdings, Inc., Capital Goods
Derivative [Line Items]
Investments, at fair value		24,845	[2],[17]		24,845	[2],[17]		19,840	[4],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				19,840
Fair Value, ending balance		24,845	[2],[17]		24,845	[2],[17]		19,840	[4],[18]
Amortized Cost		24,673	[17]		24,673	[17]		19,847	[18]
Investment, Identifier [Axis]: FR XIII PAA Holdings HoldCo, LLC, Energy—Midstream
Derivative [Line Items]
Investments, at fair value	[4],[18],[21]							17,156
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[21]				17,156
Fair Value, ending balance	[4],[18],[21]							17,156
Amortized Cost	[18],[21]							16,855
Investment, Identifier [Axis]: First Brands Group, LLC, Automobiles & Components
Derivative [Line Items]
Investments, at fair value		24,493	[2],[17]		24,493	[2],[17]		19,781	[4],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				19,781
Fair Value, ending balance		24,493	[2],[17]		24,493	[2],[17]		19,781	[4],[18]
Amortized Cost		24,478	[17]		24,478	[17]		19,620	[18]
Investment, Identifier [Axis]: Full House Resorts, Inc., Consumer Services
Derivative [Line Items]
Investments, at fair value		$ 25,799	[2],[17]		$ 25,799	[2],[17]		$ 19,517	[4],[18]
Rate (percent)		8.30%	[17],[28]		8.30%	[17],[28]		8.30%	[18],[29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				$ 19,517
Fair Value, ending balance		$ 25,799	[2],[17]		25,799	[2],[17]		$ 19,517	[4],[18]
Amortized Cost		23,663	[17]		23,663	[17]		18,561	[18]
Investment, Identifier [Axis]: GWP Midstream Holdco, LLC, Common Equity
Derivative [Line Items]
Investments, at fair value		2,378			2,378			1,661
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					1,661		5,044	5,044
Gross Additions					0	[5]		0	[6]
Gross Reductions					0	[7]		(3,112)	[8]
Net Realized Gain (Loss)					0			3,112
Net Change in Unrealized Appreciation (Depreciation)					717			(3,383)
Fair Value, ending balance		2,378			2,378			1,661
Interest income					0	[9]		0	[10]
Paid-in-kind interest income					0	[9]		0	[10]
Investment, Identifier [Axis]: GWP Midstream Holdco, LLC, Common Equity, Energy—Midstream
Derivative [Line Items]
Investments, at fair value		2,378	[2],[25],[26],[34],[37]		2,378	[2],[25],[26],[34],[37]		1,661	[4],[21],[24],[30],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[24],[30],[43]				1,661
Fair Value, ending balance		2,378	[2],[25],[26],[34],[37]		2,378	[2],[25],[26],[34],[37]		1,661	[4],[21],[24],[30],[43]
Amortized Cost		6,681	[25],[26],[34],[37]		6,681	[25],[26],[34],[37]		6,681	[21],[24],[30],[43]
Investment, Identifier [Axis]: GasLog Ltd., Energy—Midstream
Derivative [Line Items]
Investments, at fair value		7,379	[2],[25],[27]		7,379	[2],[25],[27]		$ 13,510	[4],[21],[23]
Rate (percent)	[21],[23],[29]							7.80%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[23]				13,510
Fair Value, ending balance		7,379	[2],[25],[27]		7,379	[2],[25],[27]		$ 13,510	[4],[21],[23]
Amortized Cost		7,487	[25],[27]		7,487	[25],[27]		13,874	[21],[23]
Investment, Identifier [Axis]: Gen4 Dental Partners Opco, LLC, Health Care Equipment & Services 1
Derivative [Line Items]
Investments, at fair value	[2],[17],[25]	23,042			23,042
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17],[25]	23,042			23,042
Amortized Cost	[17],[25]	22,955			22,955
Investment, Identifier [Axis]: Gen4 Dental Partners Opco, LLC, Health Care Equipment & Services 2
Derivative [Line Items]
Investments, at fair value	[2],[25],[33]	9,240			9,240
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[33]	9,240			9,240
Amortized Cost	[25],[33]	9,428			9,428
Investment, Identifier [Axis]: Global Jet Capital Holdings, LP, Preferred Equity, Commercial & Professional Services
Derivative [Line Items]
Investments, at fair value		6,938	[2],[25],[26]		6,938	[2],[25],[26]		0	[4],[21],[24]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[24]				0
Fair Value, ending balance		6,938	[2],[25],[26]		6,938	[2],[25],[26]		0	[4],[21],[24]
Amortized Cost		9,806	[25],[26]		9,806	[25],[26]		2,786	[21],[24]
Investment, Identifier [Axis]: Global Jet Capital Holdings, LP, Preferred Equity, Commercial & Professional Services, 9.0% PIK (9.0% Max PIK)
Derivative [Line Items]
Investments, at fair value	[4],[21],[24],[32]							10,357
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[24],[32]				10,357
Fair Value, ending balance	[4],[21],[24],[32]							10,357
Amortized Cost	[21],[24],[32]							12,493
Investment, Identifier [Axis]: Gold Rush Amusements, Inc., Consumer Services
Derivative [Line Items]
Investments, at fair value		30,480	[2],[17],[25]		30,480	[2],[17],[25]		30,059	[4],[18],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[21]				30,059
Fair Value, ending balance		30,480	[2],[17],[25]		30,480	[2],[17],[25]		30,059	[4],[18],[21]
Amortized Cost		29,915	[17],[25]		29,915	[17],[25]		30,079	[18],[21]
Investment, Identifier [Axis]: Goodnight Water Solutions, LLC, Energy—Midstream
Derivative [Line Items]
Investments, at fair value	[4],[18],[21]							14,379
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[21]				14,379
Fair Value, ending balance	[4],[18],[21]							14,379
Amortized Cost	[18],[21]							14,326
Investment, Identifier [Axis]: Guardian US Holdco, LLC, Financial Services
Derivative [Line Items]
Investments, at fair value	[4],[18]							20,008
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				20,008
Fair Value, ending balance	[4],[18]							20,008
Amortized Cost	[18]							19,922
Investment, Identifier [Axis]: Guardian US Holdco, LLC, Software & Services
Derivative [Line Items]
Investments, at fair value	[2],[17]	24,622			24,622
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	24,622			24,622
Amortized Cost	[17]	24,765			24,765
Investment, Identifier [Axis]: Guitar Center, Inc., Consumer Discretionary Distribution & Retail
Derivative [Line Items]
Investments, at fair value		$ 20,600	[2],[17]		$ 20,600	[2],[17]		$ 17,473	[4],[18]
Rate (percent)		8.50%	[17],[28]		8.50%	[17],[28]		8.50%	[18],[29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				$ 17,473
Fair Value, ending balance		$ 20,600	[2],[17]		20,600	[2],[17]		$ 17,473	[4],[18]
Amortized Cost		21,904	[17]		21,904	[17]		17,987	[18]
Investment, Identifier [Axis]: Harvest Oil & Gas Corp., Common Equity
Derivative [Line Items]
Investments, at fair value		365			365			271
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					271		810	810
Gross Additions					0	[5]		0	[6]
Gross Reductions					0	[7]		(641)	[8]
Net Realized Gain (Loss)					0			0
Net Change in Unrealized Appreciation (Depreciation)					94			102
Fair Value, ending balance		365			365			271
Interest income					0	[9]		0	[10]
Paid-in-kind interest income					0	[9]		0	[10]
Investment, Identifier [Axis]: Harvest Oil & Gas Corp., Common Equity, Energy—Upstream
Derivative [Line Items]
Investments, at fair value		365	[2],[25],[26],[37]		365	[2],[25],[26],[37]		271	[4],[24],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[24],[43]				271
Fair Value, ending balance		365	[2],[25],[26],[37]		365	[2],[25],[26],[37]		271	[4],[24],[43]
Amortized Cost		14,418	[25],[26],[37]		14,418	[25],[26],[37]		14,418	[24],[43]
Investment, Identifier [Axis]: Knowlton Development Corporation Inc., Household & Personal Products
Derivative [Line Items]
Investments, at fair value	[4],[18]							20,858
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				20,858
Fair Value, ending balance	[4],[18]							20,858
Amortized Cost	[18]							20,370
Investment, Identifier [Axis]: Knowlton Development Corporation, Inc., Household & Personal Products
Derivative [Line Items]
Investments, at fair value	[2],[17]	25,988			25,988
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	25,988			25,988
Amortized Cost	[17]	25,327			25,327
Investment, Identifier [Axis]: LABL, Inc., Commercial & Professional Services
Derivative [Line Items]
Investments, at fair value	[2],[17]	24,166			24,166
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	24,166			24,166
Amortized Cost	[17]	24,049			24,049
Investment, Identifier [Axis]: LABL, Inc., Commerical & Professional Services
Derivative [Line Items]
Investments, at fair value	[4],[18]							19,106
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				19,106
Fair Value, ending balance	[4],[18]							19,106
Amortized Cost	[18]							19,335
Investment, Identifier [Axis]: Learning Care Group No. 2 Inc., Consumer Services
Derivative [Line Items]
Investments, at fair value	[4],[18]							20,100
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				20,100
Fair Value, ending balance	[4],[18]							20,100
Amortized Cost	[18]							20,070
Investment, Identifier [Axis]: Learning Care Group No. 2, Inc., Consumer Services
Derivative [Line Items]
Investments, at fair value	[2],[17]	21,929			21,929
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	21,929			21,929
Amortized Cost	[17]	21,905			21,905
Investment, Identifier [Axis]: Level 3 Financing, Inc., Telecommunication Services
Derivative [Line Items]
Investments, at fair value	[2],[17],[27]	19,727			19,727
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17],[27]	19,727			19,727
Amortized Cost	[17],[27]	18,897			18,897
Investment, Identifier [Axis]: Limetree Bay Energy, LLC, Class A Units
Derivative [Line Items]
Investments, at fair value								0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					0		1,885	1,885
Gross Additions	[6]							246
Gross Reductions	[8]							0
Net Realized Gain (Loss)								(21,704)
Net Change in Unrealized Appreciation (Depreciation)								19,573
Fair Value, ending balance								0
Interest income	[10]							0
Paid-in-kind interest income	[10]							0
Investment, Identifier [Axis]: M2S Group Intermediate Holdings, Inc., Materials
Derivative [Line Items]
Investments, at fair value	[2]	28,875			28,875
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2]	28,875			28,875
Amortized Cost		27,927			27,927
Investment, Identifier [Axis]: MBS Services Holdings, LLC, A-3 Units, Commercial & Professional Services
Derivative [Line Items]
Investments, at fair value	[2],[25],[26],[34]	648			648
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[26],[34]	648			648
Amortized Cost	[25],[26],[34]	522			522
Investment, Identifier [Axis]: MBS Services Holdings, LLC, Commercial & Professional Services
Derivative [Line Items]
Investments, at fair value	[2],[25]	29,561			29,561
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25]	29,561			29,561
Amortized Cost	[25]	29,865			29,865
Investment, Identifier [Axis]: Maverick Natural Resources, LLC, Common Equity, Energy—Upstream
Derivative [Line Items]
Investments, at fair value		67,053	[2],[25],[34]		67,053	[2],[25],[34]		164,040	[4],[21],[24],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[24],[30]				164,040
Fair Value, ending balance		67,053	[2],[25],[34]		67,053	[2],[25],[34]		164,040	[4],[21],[24],[30]
Amortized Cost		93,044	[25],[34]		93,044	[25],[34]		93,044	[21],[24],[30]
Investment, Identifier [Axis]: Mavis Tire Express Services TopCo, L.P., Consumer Discretionary Distribution & Retail
Derivative [Line Items]
Investments, at fair value		17,274	[2],[17]		17,274	[2],[17]		19,955	[4],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				19,955
Fair Value, ending balance		17,274	[2],[17]		17,274	[2],[17]		19,955	[4],[18]
Amortized Cost		17,280	[17]		17,280	[17]		19,797	[18]
Investment, Identifier [Axis]: MedImpact Healthcare Systems, Inc., Health Care Equipment & Services
Derivative [Line Items]
Investments, at fair value	[2],[17]	24,313			24,313
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	24,313			24,313
Amortized Cost	[17]	22,381			22,381
Investment, Identifier [Axis]: NGL Energy Partners, LP, Preferred Equity, Energy—Midstream
Derivative [Line Items]
Investments, at fair value	[2],[25],[27]	31,306			31,306
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[27]	31,306			31,306
Amortized Cost	[25],[27]	26,177			26,177
Investment, Identifier [Axis]: NGL Energy Partners, LP, Preferred Equity, Energy—Midstream
Derivative [Line Items]
Investments, at fair value	[4],[18],[21],[23],[24],[32]							$ 141,141
Rate (percent)	[18],[21],[23],[24],[29],[32]							14.20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[21],[23],[24],[32]				141,141
Fair Value, ending balance	[4],[18],[21],[23],[24],[32]							$ 141,141
Amortized Cost	[18],[21],[23],[24],[32]							157,633
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Par), Strike, Energy—Midstream 1
Derivative [Line Items]
Investments, at fair value	[2],[25],[26],[27]	691			691
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[26],[27]	691			691
Amortized Cost	[25],[26],[27]	3,083			3,083
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Par), Strike, Energy—Midstream 2
Derivative [Line Items]
Investments, at fair value	[2],[25],[26],[27]	173			173
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[26],[27]	173			173
Amortized Cost	[25],[26],[27]	630			630
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Par), Strike: $13.56, Energy—Midstream
Derivative [Line Items]
Investments, at fair value	[4],[21],[23],[24]							621
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[23],[24]				621
Fair Value, ending balance	[4],[21],[23],[24]							621
Amortized Cost	[21],[23],[24]							630
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Par), Strike: $14.54, Energy—Midstream
Derivative [Line Items]
Investments, at fair value	[4],[21],[23],[24]							2,682
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[23],[24]				2,682
Fair Value, ending balance	[4],[21],[23],[24]							2,682
Amortized Cost	[21],[23],[24]							3,083
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Premium), Strike, Energy—Midstream 1
Derivative [Line Items]
Investments, at fair value	[2],[25],[26],[27]	695			695
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[26],[27]	695			695
Amortized Cost	[25],[26],[27]	2,623			2,623
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Premium), Strike, Energy—Midstream 2
Derivative [Line Items]
Investments, at fair value	[2],[25],[26],[27]	176			176
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[26],[27]	176			176
Amortized Cost	[25],[26],[27]	576			576
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Premium), Strike: $16.27, Energy—Midstream
Derivative [Line Items]
Investments, at fair value	[4],[21],[23],[24]							735
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[23],[24]				735
Fair Value, ending balance	[4],[21],[23],[24]							735
Amortized Cost	[21],[23],[24]							576
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Premium), Strike: $17.45, Energy—Midstream
Derivative [Line Items]
Investments, at fair value	[4],[21],[23],[24]							3,083
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[23],[24]				3,083
Fair Value, ending balance	[4],[21],[23],[24]							3,083
Amortized Cost	[21],[23],[24]							2,623
Investment, Identifier [Axis]: Navios Logistics Finance, Inc., Transportation
Derivative [Line Items]
Investments, at fair value	[4],[18],[23]							$ 19,772
Rate (percent)	[18],[23],[29]							10.80%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[23]				19,772
Fair Value, ending balance	[4],[18],[23]							$ 19,772
Amortized Cost	[18],[23]							19,680
Investment, Identifier [Axis]: Nephron Pharmaceuticals Corp., Pharmaceuticals, Biotechnology & Life Sciences
Derivative [Line Items]
Investments, at fair value	[4],[21]							19,300
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21]				19,300
Fair Value, ending balance	[4],[21]							19,300
Amortized Cost	[21]							19,400
Investment, Identifier [Axis]: Nephron Pharmaceuticals Corp., Pharmaceuticals, Biotechnology & Life Sciences 1
Derivative [Line Items]
Investments, at fair value	[2],[25]	19,105			19,105
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25]	19,105			19,105
Amortized Cost	[25]	19,324			19,324
Investment, Identifier [Axis]: Nephron Pharmaceuticals Corp., Pharmaceuticals, Biotechnology & Life Sciences 2
Derivative [Line Items]
Investments, at fair value	[2],[25]	1,146			1,146
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25]	1,146			1,146
Amortized Cost	[25]	1,161			1,161
Investment, Identifier [Axis]: Onbe, Inc., Financial Services
Derivative [Line Items]
Investments, at fair value	[2],[17],[25]	37,240			37,240
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17],[25]	37,240			37,240
Amortized Cost	[17],[25]	37,263			37,263
Investment, Identifier [Axis]: Osaic Holdings, Inc., Financial Services
Derivative [Line Items]
Investments, at fair value	[2],[17]	4,927			4,927
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	4,927			4,927
Amortized Cost	[17]	4,975			4,975
Investment, Identifier [Axis]: PODS, LLC, Transportation
Derivative [Line Items]
Investments, at fair value	[2],[17],[40]	$ 18,863			$ 18,863
Rate (percent)	[17],[28],[40]	3%			3%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17],[40]	$ 18,863			$ 18,863
Amortized Cost	[17],[40]	18,894			18,894
Investment, Identifier [Axis]: Peloton Interactive, Inc., Consumer Durables & Apparel
Derivative [Line Items]
Investments, at fair value	[2],[17],[27]	$ 25,081			$ 25,081
Rate (percent)	[17],[27],[28]	6%			6%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17],[27]	$ 25,081			$ 25,081
Amortized Cost	[17],[27]	24,702			24,702
Investment, Identifier [Axis]: Permian Production Holdings, LLC
Derivative [Line Items]
Investments, at fair value		2,846			2,846			4,816
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					4,816		4,767	4,767
Gross Additions					161	[5]		231	[6]
Gross Reductions					(2,045)	[7]		0	[8]
Net Realized Gain (Loss)					148			0
Net Change in Unrealized Appreciation (Depreciation)					(234)			(182)
Fair Value, ending balance		2,846			2,846			4,816
Interest income					378	[9]		675	[10]
Paid-in-kind interest income					63	[9]		97	[10]
Investment, Identifier [Axis]: Permian Production Holdings, LLC, Common Equity
Derivative [Line Items]
Investments, at fair value		0			0			748
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					748		11,420	11,420
Gross Additions					0	[5]		0	[6]
Gross Reductions					0	[7]		0	[8]
Net Realized Gain (Loss)					0			0
Net Change in Unrealized Appreciation (Depreciation)					(748)			(10,672)
Fair Value, ending balance		0			0			748
Interest income					0	[9]		0	[10]
Paid-in-kind interest income					0	[9]		0	[10]
Investment, Identifier [Axis]: Permian Production Holdings, LLC, Common Equity, Energy—Upstream
Derivative [Line Items]
Investments, at fair value		0	[2],[25],[26],[34],[37]		0	[2],[25],[26],[34],[37]		748	[4],[21],[24],[30],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[24],[30],[43]				748
Fair Value, ending balance		0	[2],[25],[26],[34],[37]		0	[2],[25],[26],[34],[37]		748	[4],[21],[24],[30],[43]
Amortized Cost		5	[25],[26],[34],[37]		5	[25],[26],[34],[37]		5	[21],[24],[30],[43]
Investment, Identifier [Axis]: Permian Production Holdings, LLC, Energy—Upstream
Derivative [Line Items]
Investments, at fair value		$ 2,846	[2],[25],[37]		$ 2,846	[2],[25],[37]		$ 4,816	[4],[21],[43]
Rate (percent)		7%	[25],[28],[37]		7%	[25],[28],[37]		7%	[21],[29],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[43]				$ 4,816
Fair Value, ending balance		$ 2,846	[2],[25],[37]		2,846	[2],[25],[37]		$ 4,816	[4],[21],[43]
Amortized Cost		2,761	[25],[37]		2,761	[25],[37]		4,497	[21],[43]
Investment, Identifier [Axis]: Phoenix Guarantor Inc., Financial Services
Derivative [Line Items]
Investments, at fair value	[4],[18],[19]							19,951
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[19]				19,951
Fair Value, ending balance	[4],[18],[19]							19,951
Amortized Cost	[18],[19]							19,891
Investment, Identifier [Axis]: Pioneer Midco, LLC, Consumer Services
Derivative [Line Items]
Investments, at fair value	[2],[17],[25]	38,103			38,103
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17],[25]	38,103			38,103
Amortized Cost	[17],[25]	37,279			37,279
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Energy—Power 1
Derivative [Line Items]
Investments, at fair value		$ 4,739	[2],[25],[26],[39]		$ 4,739	[2],[25],[26],[39]		$ 7,473	[4],[21],[24],[32]
Rate (percent)		6%	[25],[26],[28],[39]		6%	[25],[26],[28],[39]		6%	[21],[24],[29],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[24],[32]				$ 7,473
Fair Value, ending balance		$ 4,739	[2],[25],[26],[39]		4,739	[2],[25],[26],[39]		$ 7,473	[4],[21],[24],[32]
Amortized Cost		11,238	[25],[26],[39]		11,238	[25],[26],[39]		12,329	[21],[24],[32]
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Energy—Power 2
Derivative [Line Items]
Investments, at fair value		0	[2],[25],[26],[39]		0	[2],[25],[26],[39]		0	[4],[21],[24],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[24],[32]				0
Fair Value, ending balance		0	[2],[25],[26],[39]		0	[2],[25],[26],[39]		0	[4],[21],[24],[32]
Amortized Cost		3,827	[25],[26],[39]		3,827	[25],[26],[39]		3,827	[21],[24],[32]
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Energy—Power 3
Derivative [Line Items]
Investments, at fair value	[2],[25],[33]	$ 0			$ 0
Rate (percent)	[25],[28],[33]	10%			10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[33]	$ 0			$ 0
Amortized Cost	[25],[33]	2,344			2,344
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Letter of Credit, Energy—Power
Derivative [Line Items]
Investments, at fair value	[4],[20],[21]							$ 0
Rate (percent)	[20],[21],[29]							10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[20],[21]				0
Fair Value, ending balance	[4],[20],[21]							$ 0
Amortized Cost	[20],[21]							2,709
Investment, Identifier [Axis]: Pretium PKG Holdings, Inc., Materials
Derivative [Line Items]
Investments, at fair value		33,454	[2],[17]		33,454	[2],[17]		29,591	[4],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				29,591
Fair Value, ending balance		33,454	[2],[17]		33,454	[2],[17]		29,591	[4],[18]
Amortized Cost		32,326	[17]		32,326	[17]		29,634	[18]
Investment, Identifier [Axis]: Pro Mach Group, Inc., Capital Goods
Derivative [Line Items]
Investments, at fair value		17,457	[2],[17]		17,457	[2],[17]		20,007	[4],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				20,007
Fair Value, ending balance		17,457	[2],[17]		17,457	[2],[17]		20,007	[4],[18]
Amortized Cost		17,428	[17]		17,428	[17]		19,979	[18]
Investment, Identifier [Axis]: Proampac PG Borrower LLC, Materials
Derivative [Line Items]
Investments, at fair value		22,890	[2],[17]		22,890	[2],[17]		20,062	[4],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				20,062
Fair Value, ending balance		22,890	[2],[17]		22,890	[2],[17]		20,062	[4],[18]
Amortized Cost		22,840	[17]		22,840	[17]		19,994	[18]
Investment, Identifier [Axis]: RPC TopCo Inc., Consumer Durables & Apparel 1
Derivative [Line Items]
Investments, at fair value	[2],[25]	$ 21,640			$ 21,640
Rate (percent)	[25],[28]	5%			5%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25]	$ 21,640			$ 21,640
Amortized Cost	[25]	21,599			21,599
Investment, Identifier [Axis]: RPC TopCo Inc., Consumer Durables & Apparel 2
Derivative [Line Items]
Investments, at fair value	[2],[25],[33]	$ 2,985			$ 2,985
Rate (percent)	[25],[28],[33]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[33]	$ 2,985			$ 2,985
Amortized Cost	[25],[33]	3,030			3,030
Investment, Identifier [Axis]: RealTruck Group, Inc, Automobiles & Components
Derivative [Line Items]
Investments, at fair value	[2],[17]	24,398			24,398
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	24,398			24,398
Amortized Cost	[17]	24,025			24,025
Investment, Identifier [Axis]: Realtruck Group, Inc., Automobiles & Components
Derivative [Line Items]
Investments, at fair value	[4],[18],[19]							19,740
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[19]				19,740
Fair Value, ending balance	[4],[18],[19]							19,740
Amortized Cost	[18],[19]							19,117
Investment, Identifier [Axis]: Revlon Intermediate Holdings IV LLC, Household & Personal Products
Derivative [Line Items]
Investments, at fair value	[2],[17]	$ 14,831			$ 14,831
Rate (percent)	[17],[28]	6.88%			6.88%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	$ 14,831			$ 14,831
Amortized Cost	[17]	15,036			15,036
Investment, Identifier [Axis]: Ridgeback Resources Inc., Common Equity
Derivative [Line Items]
Investments, at fair value								0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					0		41,851	41,851
Gross Additions	[6]							0
Gross Reductions	[8]							(35,240)
Net Realized Gain (Loss)								(11,359)
Net Change in Unrealized Appreciation (Depreciation)								4,748
Fair Value, ending balance								0
Interest income	[10]							0
Paid-in-kind interest income	[10]							0
Investment, Identifier [Axis]: Ryan, LLC, Commercial & Professional Services 1
Derivative [Line Items]
Investments, at fair value	[2],[17]	9,701			9,701
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	9,701			9,701
Amortized Cost	[17]	9,819			9,819
Investment, Identifier [Axis]: Ryan, LLC, Commercial & Professional Services 2
Derivative [Line Items]
Investments, at fair value	[2],[33]	1,026			1,026
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[33]	1,026			1,026
Amortized Cost	[33]	1,036			1,036
Investment, Identifier [Axis]: Ryan, LLC, Commerical & Professional Services 1
Derivative [Line Items]
Investments, at fair value	[4],[18],[19]							9,890
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[19]				9,890
Fair Value, ending balance	[4],[18],[19]							9,890
Amortized Cost	[18],[19]							9,868
Investment, Identifier [Axis]: Ryan, LLC, Commerical & Professional Services 2
Derivative [Line Items]
Investments, at fair value	[4],[19],[20]							1,041
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[19],[20]				1,041
Fair Value, ending balance	[4],[19],[20]							1,041
Amortized Cost	[19],[20]							1,039
Investment, Identifier [Axis]: SRS Distribution Inc., Capital Goods
Derivative [Line Items]
Investments, at fair value	[4],[18],[19]							19,982
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[19]				19,982
Fair Value, ending balance	[4],[18],[19]							19,982
Amortized Cost	[18],[19]							19,729
Investment, Identifier [Axis]: ST EIP Holdings Inc., Energy—Midstream
Derivative [Line Items]
Investments, at fair value	[4],[18],[21]							$ 9,874
Rate (percent)	[18],[21],[29]							6.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[21]				9,874
Fair Value, ending balance	[4],[18],[21]							$ 9,874
Amortized Cost	[18],[21]							9,951
Investment, Identifier [Axis]: ST EIP Holdings, Inc., Energy—Midstream
Derivative [Line Items]
Investments, at fair value	[2],[17],[25]	$ 9,828			$ 9,828
Rate (percent)	[17],[25],[28]	6.30%			6.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17],[25]	$ 9,828			$ 9,828
Amortized Cost	[17],[25]	9,834			9,834
Investment, Identifier [Axis]: SupplyOne, Inc., Materials
Derivative [Line Items]
Investments, at fair value	[2],[17]	8,992			8,992
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	8,992			8,992
Amortized Cost	[17]	8,972			8,972
Investment, Identifier [Axis]: Sustainable Infrastructure Investments, LLC
Derivative [Line Items]
Investments, at fair value								39,427
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					39,427		51,098	51,098
Gross Additions	[12]							0
Gross Reductions	[14]							(11,364)
Net Realized Gain (Loss)								0
Net Change in Unrealized Appreciation (Depreciation)								(307)
Fair Value, ending balance								39,427
Interest income	[16]							0
Paid-in-kind interest income	[16]							0
Dividend income	[16]							8,324
Investment, Identifier [Axis]: Sustainable Infrastructure Investments, LLC 2
Derivative [Line Items]
Investments, at fair value		46,324			46,324			39,427
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					39,427
Gross Additions	[11]				0
Gross Reductions	[13]				0
Net Realized Gain (Loss)					0
Net Change in Unrealized Appreciation (Depreciation)					6,897
Fair Value, ending balance		46,324			46,324			39,427
Interest income	[15]				0
Paid-in-kind interest income	[15]				0
Investment, Identifier [Axis]: Sustainable Infrastructure Investments, LLC, Energy—Power
Derivative [Line Items]
Investments, at fair value		46,324	[2],[25],[27],[44]		46,324	[2],[25],[27],[44]		39,427	[4],[21],[23],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[23],[31]				39,427
Fair Value, ending balance		46,324	[2],[25],[27],[44]		46,324	[2],[25],[27],[44]		39,427	[4],[21],[23],[31]
Amortized Cost		43,150	[25],[27],[44]		43,150	[25],[27],[44]		43,150	[21],[23],[31]
Investment, Identifier [Axis]: TKC Holdings, Inc., Consumer Staples Distribution & Retail
Derivative [Line Items]
Investments, at fair value		24,294	[2],[17]		24,294	[2],[17]		18,830	[4],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				18,830
Fair Value, ending balance		24,294	[2],[17]		24,294	[2],[17]		18,830	[4],[18]
Amortized Cost		23,381	[17]		23,381	[17]		18,681	[18]
Investment, Identifier [Axis]: Telpico, LLC, Common Equity
Derivative [Line Items]
Investments, at fair value		0			0			0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					0		0	0
Gross Additions					0	[5]		0	[6]
Gross Reductions					0	[7]		0	[8]
Net Realized Gain (Loss)					0			0
Net Change in Unrealized Appreciation (Depreciation)					0			0
Fair Value, ending balance		0			0			0
Interest income					0	[9]		0	[10]
Paid-in-kind interest income					0	[9]		0	[10]
Investment, Identifier [Axis]: Telpico, LLC, Common Equity, Energy—Upstream
Derivative [Line Items]
Investments, at fair value		0	[2],[25],[26],[34],[37]		0	[2],[25],[26],[34],[37]		0	[4],[21],[24],[30],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[24],[30],[43]				0
Fair Value, ending balance		0	[2],[25],[26],[34],[37]		0	[2],[25],[26],[34],[37]		0	[4],[21],[24],[30],[43]
Amortized Cost		0	[25],[26],[34],[37]		0	[25],[26],[34],[37]		0	[21],[24],[30],[43]
Investment, Identifier [Axis]: Tenrgys, LLC, Common Equity, Energy—Upstream
Derivative [Line Items]
Investments, at fair value		230	[2],[25],[26],[34]		230	[2],[25],[26],[34]		4,418	[4],[21],[24],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[24],[30]				4,418
Fair Value, ending balance		230	[2],[25],[26],[34]		230	[2],[25],[26],[34]		4,418	[4],[21],[24],[30]
Amortized Cost		7,571	[25],[26],[34]		7,571	[25],[26],[34]		7,571	[21],[24],[30]
Investment, Identifier [Axis]: Tenrgys, LLC, Energy—Upstream
Derivative [Line Items]
Investments, at fair value		20,049	[2],[17],[25]		20,049	[2],[17],[25]		19,998	[4],[18],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[21]				19,998
Fair Value, ending balance		20,049	[2],[17],[25]		20,049	[2],[17],[25]		19,998	[4],[18],[21]
Amortized Cost		20,537	[17],[25]		20,537	[17],[25]		20,537	[18],[21]
Investment, Identifier [Axis]: TruGreen, LP, Commercial & Professional Services
Derivative [Line Items]
Investments, at fair value		23,964	[2],[17]		23,964	[2],[17]		19,268	[4],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18]				19,268
Fair Value, ending balance		23,964	[2],[17]		23,964	[2],[17]		19,268	[4],[18]
Amortized Cost		23,552	[17]		23,552	[17]		18,614	[18]
Investment, Identifier [Axis]: U.S. Treasury Bills, U.S. Treasury Bills
Derivative [Line Items]
Investments, at fair value	[4],[45]							21,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[45]				21,000
Fair Value, ending balance	[4],[45]							21,000
Amortized Cost	[45]							20,994
Investment, Identifier [Axis]: USA Compression Partners, LP, Preferred Equity, Energy—Midstream
Derivative [Line Items]
Investments, at fair value		$ 32,068	[2],[17],[25],[27]		$ 32,068	[2],[17],[25],[27]		$ 98,333	[4],[18],[21],[23]
Rate (percent)		9.80%			9.80%			9.80%	[18],[21],[23],[29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[21],[23]				$ 98,333
Fair Value, ending balance		$ 32,068	[2],[17],[25],[27]		32,068	[2],[17],[25],[27]		$ 98,333	[4],[18],[21],[23]
Amortized Cost		28,190	[17],[25],[27]		28,190	[17],[25],[27]		78,091	[18],[21],[23]
Investment, Identifier [Axis]: United Natural Foods, Inc., Consumer Staples Distribution & Retail
Derivative [Line Items]
Investments, at fair value	[2],[17],[27]	21,052			21,052
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17],[27]	21,052			21,052
Amortized Cost	[17],[27]	20,546			20,546
Investment, Identifier [Axis]: Universal Entertainment Corp., Consumer Durables & Apparel
Derivative [Line Items]
Investments, at fair value	[2],[27]	$ 9,655			$ 9,655
Rate (percent)	[27],[28]	9.90%			9.90%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[27]	$ 9,655			$ 9,655
Amortized Cost	[27]	9,533			9,533
Investment, Identifier [Axis]: Upstream Newco, Inc., Health Care Equipment & Services
Derivative [Line Items]
Investments, at fair value	[2],[17]	6,069			6,069
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	6,069			6,069
Amortized Cost	[17]	6,407			6,407
Investment, Identifier [Axis]: WMK, LLC, Consumer Discretionary Distribution & Retail 1
Derivative [Line Items]
Investments, at fair value	[2],[17],[25]	30,429			30,429
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17],[25]	30,429			30,429
Amortized Cost	[17],[25]	30,078			30,078
Investment, Identifier [Axis]: WMK, LLC, Consumer Discretionary Distribution & Retail 2
Derivative [Line Items]
Investments, at fair value	[2],[25],[33]	3,512			3,512
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[33]	3,512			3,512
Amortized Cost	[25],[33]	3,583			3,583
Investment, Identifier [Axis]: Warren Resources, Inc.
Derivative [Line Items]
Investments, at fair value		0			0			23,823
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					23,823		23,584	23,584
Gross Additions					60	[11]		239	[12]
Gross Reductions					(20,357)	[13]		0	[14]
Net Realized Gain (Loss)					(3,526)			0
Net Change in Unrealized Appreciation (Depreciation)					0			0
Fair Value, ending balance		0			0			23,823
Interest income					1,508	[15]		3,464	[16]
Paid-in-kind interest income					60	[15]		179	[16]
Dividend income	[16]							0
Investment, Identifier [Axis]: Warren Resources, Inc., Common Equity
Derivative [Line Items]
Investments, at fair value		0			0			15,566
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance					15,566		$ 36,982	36,982
Gross Additions					127	[11]		0	[12]
Gross Reductions					(13,578)	[13]		0	[14]
Net Realized Gain (Loss)					(7,303)			0
Net Change in Unrealized Appreciation (Depreciation)					5,188			(21,416)
Fair Value, ending balance		0			0			15,566
Interest income					0	[15]		0	[16]
Paid-in-kind interest income					0	[15]		0	[16]
Dividend income	[16]							0
Investment, Identifier [Axis]: Warren Resources, Inc., Common Equity, Energy—Upstream
Derivative [Line Items]
Investments, at fair value	[4],[21],[24],[31]							15,566
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[21],[24],[31]				15,566
Fair Value, ending balance	[4],[21],[24],[31]							15,566
Amortized Cost	[21],[24],[31]							20,754
Investment, Identifier [Axis]: Warren Resources, Inc., Energy—Upstream
Derivative [Line Items]
Investments, at fair value		26,683	[2],[25]		26,683	[2],[25]		23,823	[4],[18],[21],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[21],[31]				23,823
Fair Value, ending balance		26,683	[2],[25]		26,683	[2],[25]		23,823	[4],[18],[21],[31]
Amortized Cost		27,951	[25]		27,951	[25]		23,823	[18],[21],[31]
Investment, Identifier [Axis]: Wattbridge Inc., Energy—Power
Derivative [Line Items]
Investments, at fair value	[4],[18],[21]							41,882
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, beginning balance	[4],[18],[21]				41,882
Fair Value, ending balance	[4],[18],[21]							41,882
Amortized Cost	[18],[21]							$ 42,938
Investment, Identifier [Axis]: Weber-Stephen Products LLC, Consumer Durables & Apparel
Derivative [Line Items]
Investments, at fair value	[2],[17]	24,708			24,708
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17]	24,708			24,708
Amortized Cost	[17]	24,094			24,094
Investment, Identifier [Axis]: WildBrain Ltd., Media & Entertainment 1
Derivative [Line Items]
Investments, at fair value	[2],[25],[27]	1,736			1,736
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[27]	1,736			1,736
Amortized Cost	[25],[27]	1,705			1,705
Investment, Identifier [Axis]: WildBrain Ltd., Media & Entertainment 2
Derivative [Line Items]
Investments, at fair value	[2],[17],[25],[27]	30,916			30,916
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[17],[25],[27]	30,916			30,916
Amortized Cost	[17],[25],[27]	30,942			30,942
Investment, Identifier [Axis]: WildBrain Ltd., Media & Entertainment 3
Derivative [Line Items]
Investments, at fair value	[2],[25],[27],[33]	1,570			1,570
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair Value, ending balance	[2],[25],[27],[33]	1,570			1,570
Amortized Cost	[25],[27],[33]	$ 1,602			$ 1,602
[1]Security may be an obligation of one or more entities affiliated with the named company.[2]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.[3]Security may be an obligation of one or more entities affiliated with the named company.[4]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.[5]Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category.[6]Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category.[7]Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category.[8]Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category.[9]Interest and PIK income presented for the nine months ended September 30, 2024.[10]Interest and PIK income presented for the year ended December 31, 2023[11]Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category.[12]Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category.[13] Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category.[14]Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category.[15]Interest and PIK income presented for the nine months ended September 30, 2024.[16]Interest, PIK and dividend income presented for the year ended December 31, 2023.[17]Security or portion thereof held within FSSL Finance BB AssetCo LLC, a wholly-owned subsidiary of the Company, and is pledged as collateral supporting the obligations outstanding under the repurchase facility with Barclays Bank PLC (see Note 9).[18]Security or portion thereof held within FSSL Finance BB AssetCo LLC, a wholly-owned subsidiary of the Company, and is pledged as collateral supporting the obligations outstanding under the repurchase facility with Barclays Bank PLC (see Note 9).[19]Security or portion thereof unsettled as of December 31, 2023.[20]Security is an unfunded commitment. The stated rate reflects the spread disclosed at the time of commitment and may not indicate the actual rate received upon funding.[21]Security is classified as Level 3 in the Company’s fair value hierarchy (see Note 8).[22]Security or portion thereof held within FS Power Investments II, LLC, a wholly-owned subsidiary of the Company.[23]The investment is not a qualifying asset under the Investment Company Act of 1940, as amended, or the 1940 Act. A business development company may not acquire any asset other than a qualifying asset, unless, at the time the acquisition is made, qualifying assets represent at least 70% of the business development company’s total assets. As of December 31, 2023, 80.8% of the Company’s total assets represented qualifying assets.[24]Security is non-income producing.[25]Security is classified as Level 3 in the Company’s fair value hierarchy (see Note 8).[26]Security is non-income producing.[27]The investment is not a qualifying asset under the Investment Company Act of 1940, as amended, or the 1940 Act. A business development company may not acquire any asset other than a qualifying asset, unless, at the time the acquisition is made, qualifying assets represent at least 70% of the business development company’s total assets. As of September 30, 2024, 82.5% of the Company’s total assets represented qualifying assets.[28]Certain variable rate securities in the Company’s portfolio bear interest at a rate determined by a publicly disclosed base rate plus a basis point spread. As of September 30, 2024, the one-month and three-month Secured Overnight Financing Rate, or SOFR, or S, was 4.85% and 4.59%, respectively, and the Overnight Bank Funding Rate, or OBFR, was 4.83%. SOFR based contracts may include a credit spread adjustment that is charged in addition to the base rate and basis point spread. PIK means paid-in-kind. PIK income accruals may be adjusted based on the fair value of the underlying investment. Variable rate securities with no floor rate use the respective benchmark rate in all cases.[29]Certain variable rate securities in the Company’s portfolio bear interest at a rate determined by a publicly disclosed base rate plus a basis point spread. As of December 31, 2023, the one-month and three-month Secured Overnight Financing Rate, or SOFR, or S, was 5.35% and 5.33%, respectively, and the Overnight Bank Funding Rate, or OBFR, was 5.32%. SOFR based contracts may include a credit spread adjustment that is charged in addition to the base rate and basis point spread. PIK means paid-in-kind. PIK income accruals may be adjusted based on the fair value of the underlying investment. Variable rate securities with no floor rate use the respective benchmark rate in all cases. Portfolio Company Fair Value at December 31, 2022 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at December 31, 2023 Interest Income (3) PIK Income (3) Dividend Income (3) Senior Secured Loans—First Lien Allied Downhole Technologies, LLC $ 8,436 $ 138 $ (8,574) $ — $ — $ — $ 256 $ 139 $ — Allied Wireline Services, LLC 63,888 6,389 — — (48,077) 22,200 — 2,910 — Warren Resources, Inc. 23,584 239 — — — 23,823 3,464 179 — Sustainable Infrastructure Investments, LLC Sustainable Infrastructure Investments, LLC 51,098 — (11,364) — (307) 39,427 — — 8,324 Equity/Other Allied Wireline Services, LLC, Common Equity 10,463 — — — (10,463) — — — — Allied Wireline Services, LLC, Warrants — — — — — — — — — Warren Resources, Inc., Common Equity 36,982 — — — (21,416) 15,566 — — — $ 194,451 $ 6,766 $ (19,938) $ — $ (80,263) $ 101,016 $ 3,720 $ 3,228 $ 8,324 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest, PIK and dividend income presented for the year ended December 31, 2023. Portfolio Company Fair Value at December 31, 2023 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at September 30, 2024 Interest Income (3) PIK Income (3) Senior Secured Loans—First Lien Permian Production Holdings, LLC $ 4,816 $ 161 $ (2,045) $ 148 $ (234) $ 2,846 $ 378 $ 63 Asset Based Finance Bridge Street CLO IV Ltd., Subordinated Notes — 23,711 (222) — (1,909) 21,580 1,776 — Bridge Street Warehouse CLO IV Ltd. — 22,729 (22,729) — — — — 729 Bridge Street Warehouse CLO V Ltd. — 5,036 — — — 5,036 — 36 Equity/Other GWP Midstream Holdco, LLC, Common Equity 1,661 — — — 717 2,378 — — Harvest Oil & Gas Corp., Common Equity 271 — — — 94 365 — — Permian Production Holdings, LLC, Common Equity 748 — — — (748) — — — Telpico, LLC, Common Equity — — — — — — — — $ 7,496 $ 51,637 $ (24,996) $ 148 $ (2,080) $ 32,205 $ 2,154 $ 828 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest and PIK income presented for the nine months ended September 30, 2024. Portfolio Company Fair Value at December 31, 2022 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at December 31, 2023 Interest Income (3) PIK Income (3) Senior Secured Loans—First Lien Permian Production Holdings, LLC $ 4,767 $ 231 $ — $ — $ (182) $ 4,816 $ 675 $ 97 Equity/Other GWP Midstream Holdco, LLC, Common Equity 5,044 — (3,112) 3,112 (3,383) 1,661 — — Harvest Oil & Gas Corp., Common Equity 810 — (641) — 102 271 — — Limetree Bay Energy, LLC, Class A Units 1,885 246 — (21,704) 19,573 — — — Permian Production Holdings, LLC, Common Equity 11,420 — — — (10,672) 748 — — Ridgeback Resources Inc., Common Equity 41,851 — (35,240) (11,359) 4,748 — — — Telpico, LLC, Common Equity — — — — — — — — $ 65,777 $ 477 $ (38,993) $ (29,951) $ 10,186 $ 7,496 $ 675 $ 97 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest and PIK income presented for the year ended December 31, 2023. Portfolio Company Fair Value at December 31, 2023 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at September 30, 2024 Interest Income (3) PIK Income (3) Senior Secured Loans—First Lien Allied Wireline Services, LLC $ 22,200 $ — $ (19,282) $ (50,995) $ 48,077 $ — $ — $ — Warren Resources, Inc. 23,823 60 (20,357) (3,526) — — 1,508 60 Sustainable Infrastructure Investments, LLC Sustainable Infrastructure Investments, LLC 39,427 — — — 6,897 46,324 — — Equity/Other Allied Wireline Services, LLC, Common Equity — — — (1,527) 1,527 — — — Allied Wireline Services, LLC, Warrants — — — — — — — — Warren Resources, Inc., Common Equity 15,566 127 (13,578) (7,303) 5,188 — — — $ 101,016 $ 187 $ (53,217) $ (63,351) $ 61,689 $ 46,324 $ 1,508 $ 60 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest and PIK income presented for the nine months ended September 30, 2024.

Principal Business and Organiza

Principal Business and Organization	9 Months Ended
	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Principal Business and Organization	Principal Business and Organization FS Specialty Lending Fund, or the Company, was formed as a Delaware statutory trust under the Delaware Statutory Trust Act on September 16, 2010 and formally commenced investment operations on July 18, 2011. Prior to September 29, 2023, the Company’s name was FS Energy and Power Fund. The Company is an externally managed, non-diversified, closed-end management investment company that has elected to be regulated as a business development company, or BDC, under the Investment Company Act of 1940, as amended, or the 1940 Act. In addition, the Company has elected to be treated for U.S. federal income tax purposes, and intends to qualify annually, as a regulated investment company, or RIC, as defined under Subchapter M of the Internal Revenue Code of 1986, as amended, or the Code. The Company has various wholly-owned financing subsidiaries, including special-purpose financing subsidiaries and subsidiaries through which it holds or expects to hold interests in certain portfolio companies. The unaudited consolidated financial statements include both the Company’s accounts and the accounts of its wholly-owned subsidiaries as of September 30, 2024. All significant intercompany transactions have been eliminated in consolidation. Certain of the Company’s consolidated subsidiaries are subject to U.S. federal and state income taxes. In May 2023, the Company announced that its board of trustees approved the Company’s transition from an investment policy of investing primarily in energy companies to a diversified credit investment policy of investing across private and public credit in a broader set of industries, sectors and sub-sectors. The new policy became effective on September 29, 2023. The Company’s current investment objectives are to generate current income and, to a lesser extent, long-term capital appreciation by investing primarily in private and public credit in a broad set of industries, sectors and sub-sectors. The Company’s current investment policy is to invest primarily in a portfolio of secured and unsecured floating and fixed rate loans, bonds and other types of credit instruments, which, under normal circumstances, will represent at least 80% of the Company’s total assets. Prior to September 29, 2023, the Company’s investment objectives were to generate current income and long-term capital appreciation by investing primarily in privately-held U.S. companies in the energy and power industry. Prior to September 29, 2023, the Company’s investment policy was to invest, under normal circumstances, at least 80% of its total assets in securities of energy and power related, or Energy, companies. The Company considers Energy companies to be those companies that engage in the exploration, development, production, gathering, transportation, processing, storage, refining, distribution, mining, generation or marketing of natural gas, natural gas liquids, crude oil, refined products, coal or power, including those companies that provide equipment or services to companies engaged in any of the foregoing. The Company commenced transitioning the Company’s portfolio holdings away from Energy investments in May 2023, while remaining in compliance with the Company’s then-current investment policy. The Company’s allocation to Energy investments is expected to continue to decline over time through the natural course of maturities, repayments and sales activity and by growing the total size of the portfolio through leverage facilities. The pace of the portfolio rotation is dependent upon a number of factors, including the turnover of concentrated illiquid Energy investments, performance of underlying portfolio companies, high yield and energy market conditions, the Company’s access to borrowings and the amount and pace of the payment of enhanced distributions to shareholders, among others. The Company is managed by FS/EIG Advisor, LLC, or FS/EIG Advisor, pursuant to an investment advisory and administrative services agreement, dated as of April 9, 2018, or the FS/EIG investment advisory agreement. FS/EIG Advisor oversees the management of the Company’s operations and is responsible for making investment decisions with respect to the Company’s portfolio. FS/EIG Advisor is jointly operated by an affiliate of Franklin Square Holdings, L.P. (which does business as FS Investments) and EIG Asset Management, LLC, or EIG.

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2024
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation: The accompanying unaudited consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America, or GAAP, for interim financial information and with the instructions for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. For a more complete discussion of significant accounting policies and certain other information, the Company’s interim unaudited consolidated financial statements should be read in conjunction with its audited consolidated financial statements as of and for the year ended December 31, 2023 included in the Company’s annual report on Form 10-K. Operating results for the nine months ended September 30, 2024 are not necessarily indicative of the results that may be expected for the year ending December 31, 2024. The December 31, 2023 consolidated balance sheet and consolidated schedule of investments are derived from the Company's audited consolidated financial statements as of and for the year ended December 31, 2023. The Company is considered an investment company under GAAP and follows the accounting and reporting guidance applicable to investment companies under Accounting Standards Codification Topic 946, Financial Services— Investment Companies. The Company has evaluated the impact of subsequent events through the date the unaudited consolidated financial statements were issued and filed with the Securities and Exchange Commission, or the SEC. Use of Estimates: The preparation of the unaudited consolidated financial statements in conformity with 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 revenues and expenses during the reporting period. Actual results could differ from those estimates. Many of the amounts have been rounded, and all amounts are in thousands, except share and per share amounts. Capital Gains Incentive Fee: Pursuant to the terms of the FS/EIG investment advisory agreement, the incentive fee on capital gains is determined and payable in arrears as of the end of each calendar year (or upon termination of such agreement). Such fee equals 20.0% of the Company’s “incentive fee capital gains,” which are the Company’s realized capital gains on a cumulative basis from inception, calculated as of the end of the applicable period, computed net of all realized capital losses and unrealized capital depreciation on a cumulative basis, less the aggregate amount of any previously paid incentive fees on capital gains. The Company will accrue for the incentive fee on capital gains, which, if earned, will be paid annually. The Company will accrue the incentive fee on capital gains based on net realized and unrealized gains; however, the fee payable to FS/EIG Advisor will be based on realized gains and no such fee will be payable with respect to unrealized gains unless and until such gains are actually realized. For the nine months ended September 30, 2024 and 2023, the Company did not accrue any amount of capital gains incentive fee. Subordinated Income Incentive Fee: Pursuant to the terms of the FS/EIG investment advisory agreement, FS/EIG Advisor may also be entitled to receive a subordinated incentive fee on income. The subordinated incentive fee on income under the FS/EIG investment advisory agreement is calculated and payable quarterly in arrears and equals 20.0% of the Company’s “pre-incentive fee net investment income” for the immediately preceding quarter subject to a hurdle rate, expressed as a rate of return on adjusted capital, equal to 1.625% per quarter, or an annualized hurdle rate of 6.5%. As a result, FS/EIG Advisor will not earn this incentive fee for any quarter until the Company’s pre-incentive fee net investment income for such quarter exceeds the hurdle rate of 1.625%. For purposes of this fee, “adjusted capital” means cumulative gross proceeds generated from sales of the Company’s common shares (including proceeds from its distribution reinvestment plan) reduced for distributions from non-liquidating dispositions of the Company’s investments paid to shareholders and amounts paid for share repurchases pursuant to the Company’s share repurchase program. Once the Company’s pre-incentive fee net investment income in any quarter exceeds the hurdle rate, FS/EIG Advisor will be entitled to a “catch-up” fee equal to the amount of the Company’s pre-incentive fee net investment income in excess of the hurdle rate, until the Company’s pre-incentive fee net investment income for such quarter equals 2.031%, or 8.125% annually, of adjusted capital. This “catch-up” feature will allow FS/EIG Advisor to recoup the fees foregone as a result of the existence of the hurdle rate. Thereafter, FS/EIG Advisor will be entitled to receive 20.0% of the Company’s pre-incentive fee net investment income. For the nine months ended September 30, 2024 and 2023, the Company did not accrue any amount of subordinated incentive fee on income. Reclassifications: Certain amounts in the unaudited consolidated financial statements for the nine months ended September 30, 2023 may have been reclassified to conform to the classifications used to prepare the unaudited consolidated financial statements for the nine months ended September 30, 2024. Revenue Recognition: Security transactions are accounted for on the trade date. The Company records interest income on an accrual basis to the extent that it expects to collect such amounts. The Company records dividend income on the ex-dividend date. Distributions received from limited liability company, or LLC, and limited partnership, or LP, investments are evaluated to determine if the distribution should be recorded as dividend income or a return of capital. The Company does not accrue as a receivable interest or dividends on loans and securities if it has reason to doubt its ability to collect such income. The Company’s policy is to place investments on non-accrual status when there is reasonable doubt that interest income will be collected. The Company considers many factors relevant to an investment when placing it on or removing it from non-accrual status including, but not limited to, the delinquency status of the investment, economic and business conditions, the overall financial condition of the underlying investment, the value of the underlying collateral, bankruptcy status, if any, and any other facts or circumstances relevant to the investment. If there is reasonable doubt that the Company will receive any previously accrued interest, then the accrued interest will be written-off. Payments received on non-accrual investments may be recognized as income or applied to principal depending upon the collectability of the remaining principal and interest. Non-accrual investments may be restored to accrual status when principal and interest become current and are likely to remain current based on the Company’s judgment. Loan origination fees, original issue discount and market discount are capitalized and the Company amortizes such amounts as interest income over the respective term of the loan or security. Upon the prepayment of a loan or security, any unamortized loan origination fees and original issue discount are recorded as interest income. Structuring and other non-recurring upfront fees are recorded as fee income when earned. The Company records prepayment premiums on loans and securities as fee income when it earns such amounts. For the nine months ended September 30, 2024 and 2023, the Company recognized no structuring or other upfront fee revenue. The Company invests in a Collateralized Loan Obligation, or CLO. Interest income from investments in the “equity” class of the CLO (in the Company's case, subordinated notes) is recorded based upon an estimation of an effective yield to expected maturity utilizing assumed cash flows in accordance with Accounting Standards Codification Topic 325-40-35, Beneficial Interests in Securitized Financial Assets , or ASC Topic 325. The Company monitors the expected cash inflows from its equity investments in the CLO, including the expected principal repayments. The effective yield is determined and updated quarterly. Derivative Instruments: The Company’s derivative instruments may include fixed price swaps and equity total return swaps. The Company recognizes all derivative instruments as assets or liabilities at fair value in its consolidated financial statements. Derivative contracts entered into by the Company are not designated as hedging instruments for accounting purposes, and as a result, the Company presents changes in fair value through net change in unrealized appreciation (depreciation) on swap contracts in the consolidated statements of operations. Realized gains and losses of the derivative instruments are included in net realized gain (loss) on swap contracts in the consolidated statements of operations. Collateralized Loan Obligation – Warehouses: A Collateralized Loan Obligation Warehouse, or CLO Warehouse, is an entity organized for the purpose of holding syndicated bank loans, also known as leveraged loans, prior to the issuance of securities from that same vehicle. During the warehouse period, a CLO Warehouse will secure investments and build a portfolio of primarily leveraged loans and other debt obligations. The warehouse period terminates when the collateralized loan obligation vehicle issues various tranches of securities to the market. At this time, financing through the issuance of debt securities and subordinated notes is used to repay the bank financing. The fair value of the Company’s investment in the CLO Warehouse is determined by adding the excess spread (accrued interest plus interest received less financing cost) to the Company’s initial investment in the CLO Warehouse. Consistent with Accounting Standards Codification Topic 820, Fair Value Measurements and Disclosure

Share Transactions

Share Transactions	9 Months Ended
	Sep. 30, 2024
Equity [Abstract]
Share Transactions	Share Transactions Below is a summary of transactions with respect to the Company’s common shares during the nine months ended September 30, 2024 and 2023: Nine Months Ended 2024 2023 Shares Amount Shares Amount Reinvestment of Distributions (1) — $ — 4,040,561 $ 15,549 Proceeds from Share Transactions — $ — 4,040,561 $ 15,549 ______________ (1) On September 15, 2023, the Company's second amended and restated distribution reinvestment plan terminated. On July 19, 2023, the Company’s board of trustees, including the independent trustees, approved the termination of the Company’s second amended and restated distribution reinvestment plan with respect to distributions declared by the Company’s board of trustees on the Company’s common shares, effective as of September 15, 2023. After this date, all shareholders will receive any subsequent distributions in cash. On February 25, 2020, the Company received exemptive relief from the SEC permitting it to offer multiple classes of common shares. While the Company has no present intention to recommence a public offering of its common shares, the Company could do so in the future. Share Repurchase Program In March 2020, in light of difficult market conditions and in an effort to preserve liquidity in the Company, the Company’s board of trustees determined to suspend for an indefinite period of time the Company’s share repurchase program and will reassess the Company’s ability to recommence such program in future periods. Prior to its suspension, the Company intended to conduct quarterly tender offers pursuant to its share repurchase program. The Company's board of trustees will consider the following factors, among others, in making its determination regarding whether to cause the Company to offer to repurchase common shares and under what terms: • the effect of such repurchases on the Company’s qualification as a RIC (including the consequences of any necessary asset sales); • the liquidity of the Company's assets (including fees and costs associated with disposing of assets); • the Company’s investment plans and working capital requirements; • the relative economies of scale with respect to the Company’s size; • the Company’s history in repurchasing common shares or portions thereof; and • the condition of the securities markets. On May 5, 2017, the board of trustees of the Company amended the share repurchase program. As amended, the Company limited the maximum number of common shares to be repurchased for any repurchase offer to the greater of (A) the number of common shares that the Company can repurchase with the proceeds it has received from the sale of common shares under its distribution reinvestment plan during the twelve-month period ending on the date the applicable repurchase offer expires (less the amount of proceeds used to repurchase common shares on each previous repurchase date for repurchase offers conducted during such twelve-month period) (this limitation is referred to as the twelve-month repurchase limitation) and (B) the number of common shares that the Company can repurchase with the proceeds the Company receives from the sale of common shares under its distribution reinvestment plan during the three-month period ending on the date the applicable repurchase offer expires (this limitation is referred to as the three-month repurchase limitation). In addition to this limitation, the maximum number of common shares to be repurchased for any repurchase offer has also been limited to 10% of the weighted average number of common shares outstanding in the prior calendar year, or 2.5% in each calendar quarter. As a result, the maximum number of common shares to be repurchased for any repurchase offer would not exceed the lesser of (i) 10% of the weighted average number of common shares outstanding in the prior calendar year, or 2.5% in each calendar quarter, and (ii) whichever is greater of the twelve-month repurchase limitation described in clause (A) above and the three-month repurchase limitation described in clause (B) above. Historically, pursuant to the Company's share repurchase program, the Company offered to repurchase common shares at a price equal to the price at which common shares were issued pursuant to the Company’s distribution reinvestment plan on the distribution date coinciding with the applicable share repurchase date. The price at which common shares were issued under the Company’s distribution reinvestment plan was determined by the Company’s board of trustees or a committee thereof, in its sole discretion, and was (i) not less than the net asset value per common share as determined in good faith by the Company’s board of trustees or a committee thereof, in its sole discretion, immediately prior to the payment date of the distribution and (ii) not more than 2.5% greater than the net asset value per common share as of such date. The Company’s board of trustees may amend, suspend or terminate the share repurchase program at any time, upon 30 days’ notice. The Company did not repurchase any shares pursuant to its share repurchase program during the nine months ended September 30, 2024 and 2023. The Company's distribution reinvestment plan was terminated effective September 15, 2023. In order to minimize the expense of supporting small accounts and provide additional liquidity to shareholders of the Company holding small accounts after completion of a regular quarterly share repurchase offer, the Company reserves the right to repurchase the shares of and liquidate any investor’s account if the balance of such account is less than the Company’s $5 minimum initial investment, unless the account balance has fallen below the minimum solely as a result of a decline in the Company’s net asset value per share. The Company will provide or will cause to be provided 30 days’ prior written notice to potentially affected investors, which notice may be included in regular quarterly repurchase offer materials, of any such repurchase. Historically, any such repurchases were made at the Company’s most recent price at which the Company’s shares were issued pursuant to its distribution reinvestment plan. There were no de minimis account liquidations during the nine months ended September 30, 2024 and 2023.

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2024
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Compensation of the Investment Adviser Pursuant to the FS/EIG investment advisory agreement, FS/EIG Advisor is entitled to an annual base management fee based on the average weekly value of the Company’s gross assets (gross assets equals total assets as set forth on the Company’s consolidated balance sheets) during the most recently completed calendar quarter and an incentive fee based on the Company’s performance. The base management fee is payable quarterly in arrears, and is calculated at an annual rate of 1.75% of the average weekly value of the Company’s gross assets. See Note 2 for a discussion of the capital gains and subordinated income incentive fees that FS/EIG Advisor may be entitled to under the FS/EIG investment advisory agreement. FS/EIG Advisor may receive structuring or other upfront fees from portfolio companies in which FS/EIG Advisor has caused the Company to invest. FS/EIG Advisor has agreed to offset the amount of any structuring, upfront or certain other fees received by FS/EIG Advisor or its members against the management fees payable by the Company under the FS/EIG investment advisory agreement. FS/EIG Advisor may agree to discontinue offsetting such fees in the future. During the nine months ended September 30, 2024 and 2023, $6 and $337, respectively, of structuring, upfront or certain other fees received by FS/EIG Advisor or its members were offset against management fees. Pursuant to the FS/EIG investment advisory agreement, FS/EIG Advisor oversees the Company’s day-to-day operations, including the provision of general ledger accounting, fund accounting, legal services, investor relations, certain government and regulatory affairs activities and other administrative services. FS/EIG Advisor also performs, or oversees the performance of, the Company’s corporate operations and required administrative services, which includes being responsible for the financial records that the Company is required to maintain and preparing reports for the Company’s shareholders and reports filed with the SEC. The Company reimburses FS/EIG Advisor for expenses necessary to perform services related to the Company’s administration and operations, including FS/EIG Advisor’s allocable portion of the compensation and/or related expenses of certain personnel of FS Investments and EIG providing administrative services to the Company on behalf of FS/EIG Advisor, and for transactional expenses for prospective investments, such as fees and expenses associated with performing due diligence reviews of investments that do not close, often referred to as “broken deal” costs. The Company reimburses FS/EIG Advisor no less than quarterly for expenses necessary to perform services related to the Company’s administration and operations. The amount of this reimbursement is set at the lesser of (1) FS/EIG Advisor’s actual costs incurred in providing such services and (2) the amount that the Company estimates it would be required to pay alternative service providers for comparable services in the same geographic location. FS/EIG Advisor allocates the cost of such services to the Company based on factors such as time allocations and other reasonable metrics. The Company’s board of trustees reviews the methodology employed in determining how the expenses are allocated to the Company and assesses the reasonableness of such reimbursements for expenses allocated to the Company based on the breadth, depth and quality of such services as compared to the estimated cost to the Company of obtaining similar services from third-party providers known to be available. In addition, the Company’s board of trustees considers whether any single third-party service provider would be capable of providing all such services at comparable cost and quality. Finally, the Company’s board of trustees, among other things, compares the total amount paid to FS/EIG Advisor for such services as a percentage of the Company’s net assets to the same ratio as reported by other comparable BDCs. The Company does not reimburse FS/EIG Advisor for any services for which it receives a separate fee, or for rent, depreciation, utilities, capital equipment or other administrative items allocated to a controlling person of FS/EIG Advisor. The following table describes the fees and expenses accrued under the FS/EIG investment advisory agreement during the three and nine months ended September 30, 2024 and 2023: Three Months Ended Nine Months Ended Related Party Source Agreement Description 2024 2023 2024 2023 FS/EIG Advisor FS/EIG investment advisory agreement Base Management Fee (1) $ 8,761 $ 7,715 $ 26,835 $ 26,620 FS/EIG Advisor FS/EIG investment advisory agreement Administrative Services Expenses (2) $ 1,552 $ 1,887 $ 4,622 $ 4,566 _________________________ (1) During the nine months ended September 30, 2024 and 2023, $26,490 and $30,090, respectively, in base management fees were paid to FS/EIG Advisor. The base management fee amount shown in the table above is shown net of $3 and $63 in structuring, upfront or certain other fees received by FS/EIG Advisor or its members and offset against base management fees for the three months ended September 30, 2024 and 2023, respectively, and $6 and $337 in structuring, upfront or certain other fees received by FS/EIG Advisor or its members and offset against base management fees for the nine months ended September 30, 2024 and 2023, respectively. As of September 30, 2024 , $8,761 in base management fees were payable to FS/EIG Advisor. (2) During the nine months ended September 30, 2024 and 2023, $2,934 and $2,386, respectively, of the accrued administrative services expenses related to the allocation of costs of administrative personnel for services rendered to the Company by FS/EIG Advisor and the remainder related to other reimbursable expenses. The Company paid $3,295 and $4,017 in administrative services expenses to FS/EIG Advisor, or its affiliates, during the nine months ended September 30, 2024 and 2023, respectively. Potential Conflicts of Interest The members of the senior management and investment teams of FS/EIG Advisor serve or may serve as officers, directors or principals of entities that operate in the same or a related line of business as the Company does, or of investment vehicles managed by the same personnel. The officers, managers and other personnel of FS/EIG Advisor may serve in similar or other capacities for the investment advisers to future investment vehicles affiliated with FS Investments or EIG. In serving in these multiple and other capacities, they may have obligations to other clients or investors in those entities, the fulfillment of which may not be in the Company’s best interests or in the best interest of the Company’s shareholders. The Company’s investment objectives may overlap with the investment objectives of such investment funds, accounts or other investment vehicles. In addition, members of the senior management and investment teams and other employees of FS/EIG Advisor or its members or their respective affiliates may from time to time invest in portfolio companies in which the Company also invests. For additional information regarding potential conflicts of interest, see the Company’s annual report on Form 10-K for the year ended December 31, 2023. Exemptive Relief As a BDC, the Company is subject to certain regulatory restrictions in making its investments. For example, BDCs generally are not permitted to co-invest with certain affiliated entities in transactions originated by the BDC or its affiliates in the absence of an exemptive order from the SEC. However, BDCs are permitted to, and may, simultaneously co-invest in transactions where price is the only negotiated term. In an order dated June 4, 2013, or the Order, the SEC granted exemptive relief permitting the Company, subject to the satisfaction of certain conditions, to co-invest in certain privately negotiated investment transactions with certain affiliates of its former investment adviser, including FS KKR Capital Corp., or collectively the Company’s co-investment affiliates. Effective April 9, 2018, or the JV Effective Date, and in connection with the transition of advisory services to a joint advisory relationship with EIG, the Company’s board of trustees authorized and directed that the Company (i) withdraw from the Order, except with respect to any transaction in which the Company participated in reliance on the Order prior to the JV Effective Date, and (ii) rely on an exemptive relief order dated April 10, 2018, granted to EIG and its affiliates which permits the Company to participate in co-investment transactions with certain other EIG advised funds, or the EIG Order. On September 19, 2023, the Company, FS/EIG Advisor and certain of their affiliates (the "FS Funds"), filed an application for exemptive relief with the SEC, and subsequently amended such application, to permit the FS Funds, including future affiliated investment funds, to co-invest in the same investment opportunities (the "FS Application"). On October 21, 2024, the SEC issued a notice for the FS Application. If the SEC issues an order in response to the FS Application, the Company will withdraw from the EIG Order, except with respect to any transaction in which the Company participated in reliance on the EIG Order prior to the issuance of the new order. Bridge Street CLO IV Ltd. The collateral manager and administrator of Bridge Street CLO IV Ltd., or Bridge Street CLO IV, or CLO issuer, FS Structured Products Advisor, LLC, or FSSPA, is an affiliate of FS/EIG Advisor. In accordance with an agreement between FSSPA and the Company, as long as the Company owns more than 4.99% of the CLO issuer’s equity, FSSPA will reimburse the Company on a quarterly basis in an amount equal to a portion of the compensation received by FSSPA from the CLO issuer, equal to the Company's percentage ownership of the CLO issuer's subordinated notes, for FSSPA's collateral management and collateral administrator services less certain administrative costs borne by FSSPA during the relevant quarter as defined in the expense reimbursement agreement. Bridge Street Warehouse CLO IV Ltd., or Bridge Street Warehouse CLO IV, was a CLO Warehouse that commenced operations on January 26, 2024. During the warehouse phase and through April 26, 2024, Bridge Street Warehouse CLO IV financed its loan purchases using its warehouse financing facility (including a subordinated loan facility provided by the Company). On April 26, 2024, the CLO Warehouse phase terminated when the collateralized loan obligation vehicle, Bridge Street CLO IV, issued to the market various tranches of notes in the amount of $354,700, including $23,700 principal amount for subordinated notes and rights to receive cash flows from collateral management fees. On such date, Bridge Street CLO IV, following a merger with Bridge Street Warehouse CLO IV, used the proceeds from its note issuance to repay the warehouse financing facility. Bridge Street Warehouse CLO V Ltd. Bridge Street Warehouse CLO V Ltd., or Bridge Street Warehouse CLO V, is a CLO Warehouse in which the Company contributes capital by subscribing for the preference shares issued by Bridge Street Warehouse CLO V, which is accounted for as a financial instrument at fair value as of September 30, 2024. Bridge Street Warehouse CLO V commenced operations on August 1, 2024 and was in the warehouse phase as of September 30, 2024. As of September 30, 2024, the Company contributed $5,000 to Bridge Street Warehouse CLO V. The Company had an investment of $5,036 in Bridge Street Warehouse CLO V, at fair value, as of September 30, 2024. Bridge Street Warehouse CLO V financed the majority of its loan purchases using its warehouse financing facility. The amount of interest income from the Bridge Street Warehouse CLO V recorded on the Company’s unaudited consolidated statement of operations for the three and nine months ended September 30, 2024 was approximately $36 and $36, respectively.

Distributions

Distributions	9 Months Ended
	Sep. 30, 2024
Income Tax Disclosure [Abstract]
Distributions	The following table reflects the cash distributions per share that the Company declared on its common shares during the nine months ended September 30, 2024 and 2023: Distribution For the Three Months Ended Per Share Amount Fiscal 2023 March 31, 2023 $ 0.0300 $ 13,584 June 30, 2023 0.0300 13,624 September 30, 2023 — — Total $ 0.0600 $ 27,208 Fiscal 2024 March 31, 2024 (1) $ 0.0034 $ 1,549 June 30, 2024 0.0866 39,447 September 30, 2024 0.0867 39,492 Total $ 0.1767 $ 80,488 _________________________ (1) For the quarter ended December 31, 2023, the distribution amount per share was $0.0643, comprised of an initial distribution per share of $0.0609 declared in December 2023 and the remaining distribution per share of $0.0034 declared in January 2024, collectively representing an annualized distribution rate to shareholders of 7.5%. Subject to applicable legal restrictions and the sole discretion of the Company's board of trustees, the Company expects to provide enhanced quarterly distributions to shareholders until the achievement of a long-term liquidity event. On October 18, 2024, the Company's board of trustees declared an enhanced cash distribution of $0.0853 per share for the third quarter of 2024, representing an annualized distribution rate to shareholders of 10.0% based on the estimated net asset value of $3.41 per share as of September 30, 2024. The enhanced distributions are expected to be paid quarterly and increase in subsequent years until the achievement of a long-term liquidity event, subject to a maximum cap of 15.0% of the Company’s then-current estimated net asset value beyond 2026. The Company expects a portion of the distributions may represent a return of investor capital, helping to accelerate liquidity for shareholders in the near-term. There can be no assurance that the Company will be able to pay distributions in the future. The timing and amount of any future distributions to shareholders are subject to applicable legal restrictions and the sole discretion of the Company’s board of trustees. Historically, the Company had an “opt in” distribution reinvestment plan for its shareholders. As a result, if the Company made a cash distribution, its shareholders would receive distributions in cash unless they specifically “opted in” to the distribution reinvestment plan so as to have their cash distributions reinvested in additional common shares. However, certain state authorities or regulators may have imposed restrictions from time to time that may have prevented or limited a shareholder's ability to participate in the distribution reinvestment plan. The Company's distribution reinvestment plan was terminated effective as of September 15, 2023. Under the prior distribution reinvestment plan, cash distributions to participating shareholders would be reinvested in additional common shares at a purchase price determined by the Company’s board of trustees, or a committee thereof, in its sole discretion, that was (i) not less than the net asset value per common share as determined in good faith by the Company’s board of trustees or a committee thereof, in its sole discretion, immediately prior to the payment of the distribution and (ii) not more than 2.5% greater than the net asset value per common share as of such date. Any distributions reinvested under the plan would remain taxable to a U.S. shareholder. The Company may fund its cash distributions to shareholders from any sources of funds legally available to it, including proceeds from the sale of the Company’s common shares, borrowings, net investment income from operations, capital gains proceeds from the sale of assets and non-capital gains proceeds from the sale of assets, dividends or other distributions paid to the Company on account of preferred and common equity investments in portfolio companies. The Company has not established limits on the amount of funds it may use from available sources to make distributions. The Company's distribution proceeds have exceeded and in the future may exceed its earnings. Therefore, portions of the distributions that the Company has made represented, and may make in the future may represent, a return of capital to shareholders, which lowers their tax basis in their common shares. A return of capital generally is a return of a shareholder’s investment rather than a return of earnings or gains derived from the Company’s investment activities. Each year a statement on Form 1099-DIV identifying the sources of the distributions (i.e., paid from ordinary income, paid from net capital gains on the sale of securities, and/or a return of capital, which is a nontaxable distribution) will be mailed to the Company’s shareholders. There can be no assurance that the Company will be able to pay distributions at a specific rate or at all. The following table reflects the sources of the cash distributions on a tax basis that the Company declared on its common shares during the nine months ended September 30, 2024 and 2023: Nine Months Ended 2024 2023 Source of Distribution Distribution Amount Percentage Distribution Amount Percentage Net investment income (1) $ 80,488 100 % $ 27,208 100 % Short-term capital gains proceeds from the sale of assets — — — — Long-term capital gains proceeds from the sale of assets — — — — Total $ 80,488 100 % $ 27,208 100 % _________________________ (1) During the nine months ended September 30, 2024 and 2023, 90.8% and 83.8%, respectively, of the Company's gross investment income was attributable to cash income earned, 5.0% and 12.3%, respectively, was attributable to paid-in-kind, or PIK, interest and 4.2% and 3.9%, respectively, was attributable to non-cash accretion of discount. The determination of the tax attributes of the Company’s distributions is made annually as of the end of the Company’s fiscal year based upon the Company’s taxable income for the full year and distributions paid for the full year. Therefore, a determination made on a quarterly basis may not be representative of the actual tax attributes of the Company's distributions for a full year. The actual tax characteristics of distributions to shareholders are reported to shareholders annually on Form 1099-DIV. Net capital losses may be carried forward indefinitely, and their character is retained as short-term or long-term. As of September 30, 2024, the Company had short-term and long-term capital loss carryforwards available to offset future realized capital gains of $75,615 and $1,461,235, respectively. As of September 30, 2024 and December 31, 2023, for federal income tax purposes, the gross unrealized appreciation on the Company’s investments, swap contracts and unrealized gain on foreign currency was $65,800 and $148,817, respectively, and the gross unrealized depreciation on the Company’s investments, swap contracts and unrealized loss on foreign currency was $178,204 and $213,339, respectively. The aggregate cost of the Company’s investments for federal income tax purposes totaled $1,804,425 and $1,587,709 as of September 30, 2024 and December 31, 2023, respectively. The aggregate net unrealized appreciation (depreciation) on a tax basis was $(112,373) and $(64,513) as of September 30, 2024 and December 31, 2023, respectively.

Financial Instruments

Financial Instruments	9 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Financial Instruments	Financial Instruments The Company may trade in financial instruments with off-balance sheet risk in the normal course of its investing activities. Fixed Price Swaps The Company previously utilized commodity fixed price swaps to economically hedge certain risks against natural gas and crude oil price exposure related to certain investments in the Company's portfolio. A fixed price swap is a contract between two parties in which settlements are made at a specified time based on the difference between the fixed price specified in the contract and the referenced settlement price. When the referenced settlement price was less than the price specified in the contract, the Company received an amount from the counterparty based on the price difference multiplied by the volume. Similarly, when the referenced settlement price exceeded the price specified in the contract, the Company paid the counterparty an amount based on the price difference multiplied by the volume. The Company's fixed price swaps were settled monthly and the settlement prices contained in these fixed price swaps were based on commodity exchanges; the NYMEX Henry Hub for natural gas and the ICE Brent for oil. Gas volumes are measured in one million British thermal units, or MMBtus, and oil volumes are measured in barrels, or Bbls. The changes in the value of the fixed price swaps were recorded as unrealized appreciation or depreciation on swap contracts in the consolidated balance sheets. The Company's fixed price swaps settled monthly and the changes in the value of the fixed price swaps were recorded as realized gains or losses in the consolidated statements of operations. The primary underlying risk exposure through the use of fixed price swaps is commodity price risk of the underlying commodity, such as natural gas and crude oil. As of December 31, 2023, the Company's fixed price swaps were fully terminated. Total Return Swaps The Company utilizes total return swaps to obtain exposure to securities without owning such securities. A total return swap, or TRS, is a contract in which there is an exchange of cash flows whereby one party agrees to make periodic payments based on the total return (distributions or periodic interest payments plus capital gains/losses) of an underlying instrument in exchange for fixed or floating rate interest payments. If the total return of the instrument or index underlying the transaction exceeds or falls short of the offsetting fixed or floating interest rate obligation, the Company receives payment from or makes a payment to the counterparty. Total return swaps are entered into to obtain exposure to a security or market without owning such security or investing directly in such market or to exchange the risk/return of one market with another market. Nomura Total Return Swap On September 20, 2023, the Company entered into an equity total return swap with Nomura Global Financial Products Inc., or Nomura. Under the Nomura TRS, the Company obtains the economic benefit of owning shares of FS Credit Opportunities Corp., or FSCO, an investment company registered under the 1940 Act, without actually owning them, and Nomura receives an interest-type payment in return. The investment adviser to FSCO is wholly-owned by Franklin Square Holdings, L.P., which is also the majority owner of FS/EIG Advisor. The Nomura TRS is marked-to-market daily and the change in market value is recorded as unrealized appreciation or depreciation on swap contracts in the consolidated balance sheets. Pursuant to its terms, the Nomura TRS settles monthly and a realized gain or loss is recorded in the consolidated statements of operations equal to the difference between the value of the shares underlying the Nomura TRS at the time the swap was entered into or the previous settlement date and the value as of the current settlement date, plus dividends received and less accrued interest. Any dividends received by Nomura as holder of the FSCO shares are paid to the Company. The Nomura TRS has a term of three years, but it could be terminated earlier in whole or in part following the occurrence of certain prescribed events agreed to between Nomura and the Company. The primary underlying risk exposure through the use of equity total return swaps is equity market risk. BNP Paribas Total Return Swap On February 15, 2024, FSSL Finance BNPP TRS LLC, or FSSL Finance BNPP TRS, a wholly-owned financing subsidiary of the Company, entered into a TRS for a portfolio of senior secured floating rate loans with BNP Paribas, or BNPP. The BNPP TRS enables the Company, through its ownership of FSSL Finance BNPP TRS, to obtain the economic benefit of owning the broadly syndicated loans subject to the TRS, without actually owning them, in return for an interest-type payment to BNPP. As such, the BNPP TRS is analogous to the Company borrowing funds to acquire loans and incurring interest expense to a lender. The terms of the BNPP TRS include, among other things, (a) payment by BNPP to FSSL Finance BNPP TRS of all interest and fees (less applicable withholding taxes) on the underlying loans, (b) payment by FSSL Finance BNPP TRS to BNPP of (i) a financing fee on the outstanding notional amount of the TRS at a rate equal to USD-SOFR Compounded Index plus 1.65% per annum, and (ii) a utilization fee of 0.85% per annum on the difference between any lesser usage amount and a $100,000 minimum usage threshold, (c) upon the termination or repayment of any loan subject to the TRS, FSSL Finance BNPP TRS either will receive from BNPP the appreciation in the value of such loan or will pay to BNPP any depreciation in the value of such loan and (d) guarantee by the Company of all obligations of FSSL Finance BNPP TRS. During the nine months ended September 30, 2024, the monthly average notional amounts of the Nomura TRS and the BNPP TRS were $38,796 and $48,649, respectively. The following table presents the fair value of open swap contracts (which are not considered to be hedging instruments for accounting purposes) as of September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Instrument Derivative Assets Derivative Liabilities (1) Derivative Assets Derivative Liabilities Nomura Total Return Swap $ — $ — $ — $ — BNP Paribas Total Return Swap — (13) — — Total $ — $ (13) $ — $ — ______________ (1) Reflected on the Company's consolidated balance sheets as: Unrealized depreciation on swap contracts. The effect of swap contracts (which are not considered to be hedging instruments for accounting purposes) on the Company's statements of operations for the nine months ended September 30, 2024 and 2023 were as follows: Net Realized Gains (Losses) (1) Net Change in Unrealized (2) Nine Months Ended Nine Months Ended Instrument 2024 2023 2024 2023 Commodity Fixed Price Swaps—Crude Oil $ — $ (259) $ — $ 168 Commodity Fixed Price Swaps—Natural Gas — 348 — 162 Nomura Total Return Swap 6,214 (1) — 70 BNP Paribas Total Return Swap 843 — (13) — Total $ 7,057 $ 88 $ (13) $ 400 ______________ (1) Reflected on the Company's consolidated statements of operations as: Net realized gain (loss) on swap contracts. (2) Reflected on the Company's consolidated statements of operations as: Net change in unrealized appreciation (depreciation) on swap contracts. Offsetting of Derivative Instruments The Company has derivative instruments that are subject to master netting agreements. These agreements include provisions to offset positions with the same counterparty in the event of default by one of the parties. The Company’s unrealized appreciation and depreciation on derivative instruments are reported as gross assets and liabilities, respectively, in the consolidated balance sheets. The following table presents the Company’s derivative assets and liabilities by counterparty, net of amounts available for offset under a master netting agreement and net of any collateral received or pledged by the Company for such assets and liabilities as of September 30, 2024: As of September 30, 2024 Counterparty Derivative Assets Derivative Liabilities Net Value of Derivatives Non-Cash Collateral (Received) Pledged (1) Cash Collateral (Received) Pledged (1) Net Amount of Derivative Assets (Liabilities) (2) BNP Paribas — $ (13) $ (13) — — $ (13) ______________ (1) In some instances, the actual amount of the collateral received and/or pledged may be more than the amount shown due to overcollateralization. (2) Net amount of derivative assets and liabilities represents the net amount due from the counterparty to the Company and the net amount due from the Company to the counterparty, respectively, in the event of default.

Investment Portfolio

Investment Portfolio	9 Months Ended
	Sep. 30, 2024
Schedule of Investments [Abstract]
Investment Portfolio	Investment Portfolio The following table summarizes the composition of the Company’s investment portfolio at cost and fair value as of September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Amortized Cost (1) Fair Value Percentage Amortized Cost (1) Fair Value Percentage Senior Secured Loans—First Lien $ 1,217,691 $ 1,209,850 72 % $ 878,013 $ 825,158 54 % Senior Secured Loans—Second Lien 82,014 81,820 5 % 55,064 54,424 4 % Senior Secured Bonds 106,242 106,875 6 % 82,793 84,468 5 % Subordinated Debt 37,279 38,103 2 % — — — Asset Based Finance 28,525 26,616 1 % — — — Sustainable Infrastructure Investments, LLC 43,150 46,324 3 % 43,150 39,427 3 % Equity/Other 241,552 182,464 11 % 463,911 498,719 33 % Short-Term Investments — — — 20,994 21,000 1 % Total $ 1,756,453 $ 1,692,052 100 % $ 1,543,925 $ 1,523,196 100 % ______________ (1) Amortized cost represents the original cost adjusted for the amortization of premiums and/or accretion of discounts, as applicable, on investments. In general, under the 1940 Act, the Company would be presumed to “control” a portfolio company if it owned more than 25% of its voting securities or it had the power to exercise control over the management or policies of a portfolio company, and would be an “affiliated person” of a portfolio company if it owned 5% or more of its voting securities. As of September 30, 2024, the Company held investments in six portfolio companies of which it is deemed to be an “affiliated person” but is not deemed to “control” and held investments in one portfolio company of which it is deemed to “control.” For additional information with respect to such portfolio companies, see footnotes (u) and (v) to the unaudited consolidated schedule of investments as of September 30, 2024 in this quarterly report on Form 10-Q. As of December 31, 2023, the Company held investments in four portfolio companies of which it is deemed to be an “affiliated person” but is not deemed to “control” and held investments in three portfolio companies of which it is deemed to “control.” For additional information with respect to such portfolio companies, see footnotes (u) and (v) to the consolidated schedule of investments as of December 31, 2023 in this quarterly report on Form 10-Q. The Company’s investment portfolio may contain loans or bonds that are in the form of lines of credit or revolving credit facilities, or other investments, pursuant to which the Company may be required to provide funding when requested by portfolio companies in accordance with the terms of the underlying agreements. As of September 30, 2024, the Company had thirteen senior secured loan investments with aggregate unfunded commitments of $38,263 and unfunded commitments of $18,989 in U.S. dollars and $858 in Canadian dollars to contribute capital to Sustainable Infrastructure Investments, LLC. As of December 31, 2023, the Company had five senior secured loan investments with aggregate unfunded commitments of $11,232 and unfunded commitments of $18,989 in U.S dollars and $858 in Canadian dollars to contribute capital to Sustainable Infrastructure Investments, LLC. The Company maintains sufficient cash on hand, available borrowings and/or liquid securities to fund such unfunded commitments should the need arise. The table below describes investments by industry classification and enumerates the percentage, by fair value, of the total portfolio assets in such industries as of September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Industry Classification Fair Value Percentage Fair Value Percentage Consumer Services $ 236,008 14 % $ 156,089 10 % Energy—Upstream 185,965 11 % 309,456 20 % Capital Goods 170,764 10 % 116,454 8 % Health Care Equipment & Services 131,827 8 % 73,105 5 % Commercial & Professional Services (1) 125,957 7 % 62,036 4 % Materials 94,211 6 % 49,653 3 % Media & Entertainment (1) 89,053 5 % 19,829 1 % Energy—Midstream 84,694 5 % 303,175 20 % Consumer Discretionary Distribution & Retail 84,352 5 % 37,428 3 % Consumer Durables & Apparel 81,039 5 % — — Financial Services (1) 77,585 5 % 83,197 6 % Automobiles & Components 48,891 3 % 39,521 3 % Consumer Staples Distribution & Retail 45,346 3 % 18,830 1 % Household & Personal Products 40,819 2 % 20,858 1 % Telecommunication Services 39,710 2 % — — Transportation 31,042 2 % 30,157 2 % Software & Services (1) 24,622 1 % — — Pharmaceuticals, Biotechnology & Life Sciences 20,251 1 % 19,300 1 % Insurance 18,702 1 % 20,251 1 % Real Estate Management & Development 12,495 1 % — — Energy—Power 2,395 0 % 69,696 5 % Energy—Service & Equipment (1) — — 33,734 2 % U.S. Treasury — — 21,000 1 % Sustainable Infrastructure Investments, LLC (2) 46,324 3 % 39,427 3 % Total $ 1,692,052 100 % $ 1,523,196 100 % _____________________ (1) FS/EIG Advisor monitors the industry classification of the Company’s investments and may from time to time reclassify such investments if it determines such reclassification is appropriate. During the nine months ended September 30, 2024, each of the three investments had their industries re-classified from Financial Services to Media & Entertainment, Commercial & Professional Services and Software & Services. During the year ended December 31, 2023, two investments had their industry re-classified from Energy—Industrials to Commercial & Professional Services, and one investment had its industry re-classified from Energy—Service & Equipment to Commercial & Professional Services. (2) Sustainable Infrastructure Investments, LLC is comprised of midstream and renewables assets in the Energy sector. Sustainable Infrastructure Investments, LLC Sustainable Infrastructure Investments, LLC, or SIIJV, is a joint venture between the Company and Imperial Sustainable Infrastructure Investments, LLC, or Imperial, a subsidiary of Imperial Capital Asset Management, LLC, or ICAM. The joint venture is governed pursuant to the terms of an amended and restated limited liability company agreement of SIIJV, dated as of January 2, 2020, between the Company and Imperial, or the SIIJV Agreement. The SIIJV Agreement requires the Company and Imperial to provide capital to SIIJV of up to $67,629 in U.S. dollars and $5,430 in Canadian dollars in the aggregate where the Company and Imperial would provide 87.5% and 12.5%, respectively, of the committed capital. Pursuant to the terms of the SIIJV Agreement, the Company and Imperial each have 50% voting control of SIIJV and are required to agree on all investment decisions as well as all other significant actions for SIIJV. SIIJV invests in senior secured loans to middle market companies, broadly syndicated loans and other midstream and renewables assets. As administrative agent of SIIJV, the Company performs certain day-to-day management responsibilities on behalf of SIIJV and is entitled to a fee in the annual amount of 0.25% of SIIJV’s net assets under administration, calculated and payable quarterly in arrears. As of September 30, 2024, the Company and Imperial funded approximately $49,313 to SIIJV, of which $43,150 was from the Company. The Company does not consolidate SIIJV in its consolidated financial statements. On January 2, 2020, Seine Funding, LLC, or Seine Funding, a wholly-owned subsidiary of SIIJV, entered into a credit facility, as amended, or the Seine Funding Facility, with certain financial institutions as lender, agent, collateral agent, collateral administrator, and collateral custodian, and SIIJV, as collateral manager. The Seine Funding Facility provides for borrowings in U.S. dollars and certain agreed upon foreign currencies in an aggregate principal amount of up to $634,103 on a committed basis, which may be increased under certain circumstances at the request of Seine Funding and with the consent of the lender and agent. The end of the reinvestment period for the Seine Funding Facility was on December 31, 2020. The maturity date for the Seine Funding Facility is the earlier of (i) the latest maturity date among the assets securing the facility and (ii) the first date, after the end of the reinvestment period, on which all assets securing the facility are paid in full. Under the Seine Funding Facility, borrowings bear interest at the rate of Term SOFR plus a credit spread adjustment calculated by reference to the interest periods of particular loan assets per the terms of the credit agreement (or the relevant benchmark reference rate for any foreign currency borrowings) (in each case, subject to a floor of the higher of 0% and any applicable floor for particular loan assets), plus 1.20% per annum. Borrowings under the Seine Funding Facility are secured by a first priority security interest in substantially all of the assets of Seine Funding. As of September 30, 2024, total outstanding borrowings under the Seine Funding Facility were $84,121. Below is a summary of SIIJV's portfolio, followed by a listing of the individual loans in SIIJV's portfolio as of September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Total investments (1) $ 104,101 $ 170,083 Weighted average current interest rate on debt investments (2) 6.79 % 7.45 % Number of portfolio assets in SIIJV 3 6 Largest investment in a single portfolio company (1) $ 55,422 $ 57,227 _____________________ (1) At cost. (2) Computed as the (a) annual stated interest rate on accruing debt, divided by (b) total debt at par amount. Sustainable Infrastructure Investments, LLC Portfolio As of September 30, 2024 (Unaudited) Portfolio Company (a)(b) Energy Industry Rate (c) Maturity Principal Amortized Fair (d) Senior Secured Loans—First Lien—100.0% FLNG Liquefaction 2, LLC Midstream S+150 12/31/26 $ 25,052 $ 25,052 $ 25,052 NES Hercules Class B Member, LLC Renewables S+178 1/31/28 23,627 23,627 23,627 ST EIP Holdco LLC Midstream S+250 11/5/24 55,422 55,422 55,422 Total Senior Secured Loans—First Lien 104,101 104,101 TOTAL INVESTMENTS—100.0% $ 104,101 $ 104,101 Sustainable Infrastructure Investments, LLC Portfolio As of December 31, 2023 Portfolio Company (a)(b) Energy Industry Rate (c) Maturity Principal Amortized Fair (d) Senior Secured Loans—First Lien—100.0% Blue Heron Intermediate Holdco I, LLC Midstream S+188 4/22/24 $ 30,661 $ 30,661 $ 30,692 Copper Mountain Solar 3, LLC Renewables S+188 5/31/25 16,104 16,104 16,172 FLNG Liquefaction 2, LLC Midstream S+150 12/31/26 26,567 26,567 26,557 NES Hercules Class B Member, LLC Renewables S+163 1/31/28 24,176 24,176 24,769 ST EIP Holdco LLC Midstream S+250 11/5/24 57,227 57,227 57,143 Top of the World Wind Energy LLC Renewables S+213 12/1/28 15,348 15,348 15,616 Total Senior Secured Loans—First Lien 170,083 170,949 TOTAL INVESTMENTS—100.0% $ 170,083 $ 170,949 _____________________ Percentages are shown as a percentage of total investments. (a) Security may be an obligation of one or more entities affiliated with the named company. (b) Security or portion thereof is held within Seine Funding and is pledged as collateral supporting the amounts outstanding under the Seine Funding Facility. (c) Certain variable rate securities in SIIJV's portfolio bear interest at a rate determined by a publicly disclosed base rate plus a basis point spread. As of September 30, 2024 and December 31, 2023, the three-month SOFR, or S, was 4.59% and 5.33%, respectively. SOFR based contracts may include a credit spread adjustment that is charged in addition to the base rate and basis point spread. (d) Security is classified as Level 3 and fair value is determined in accordance with SIIJV’s valuation process. Below is selected balance sheet information for SIIJV as of September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Selected Balance Sheet Information Total investments, at fair value $ 104,101 $ 170,949 Cash and other assets 34,501 29,089 Total assets $ 138,602 $ 200,038 Debt $ 84,121 $ 145,483 Other liabilities 1,539 3,406 Total liabilities 85,660 148,889 Members' equity $ 52,942 $ 51,149 Below is selected statement of operations information for SIIJV for the three and nine months ended September 30, 2024 and 2023: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Selected Statement of Operations Information Total investment income $ 2,572 $ 5,272 $ 8,835 $ 15,083 Expenses Interest expense 1,484 3,410 5,364 9,870 Administrative services 66 46 130 134 Custodian and accounting fees 83 58 174 161 Professional services 41 70 117 170 Other 5 11 26 31 Total expenses 1,679 3,595 5,811 10,366 Net investment income 893 1,677 3,024 4,717 Net realized and unrealized gain (loss) 1 (2,273) (1,231) (937) Net increase (decrease) in net assets resulting from operations $ 894 $ (596) $ 1,793 $ 3,780

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments Under existing accounting guidance, fair value is defined as the price that the Company would receive upon selling an investment or pay to transfer a liability in an orderly transaction to a market participant in the principal or most advantageous market for the investment. This accounting guidance emphasizes valuation techniques that maximize the use of observable market inputs and minimize the use of unobservable inputs. Inputs refer broadly to the assumptions that market participants would use in pricing an asset or liability, including assumptions about risk. Inputs may be observable or unobservable. Observable inputs are inputs that reflect the assumptions market participants would use in pricing an asset or liability developed based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the assumptions market participants would use in pricing an asset or liability developed based on the best information available in the circumstances. The Company classifies the inputs used to measure these fair values into the following hierarchy as defined by current accounting guidance: Level 1: Inputs that are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2: Inputs that are quoted prices for similar assets or liabilities in active markets. Level 3: Inputs that are unobservable for an asset or liability. A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. As of September 30, 2024 and December 31, 2023, the Company’s investments were categorized as follows in the fair value hierarchy: Valuation Inputs September 30, 2024 December 31, 2023 Level 1—Price quotations in active markets $ — $ — Level 2—Significant other observable inputs 953,879 683,716 Level 3—Significant unobservable inputs 738,173 839,480 Total $ 1,692,052 $ 1,523,196 As of September 30, 2024 and December 31, 2023, the Company’s swap contracts were categorized as follows in the fair value hierarchy. September 30, 2024 December 31, 2023 Valuation Inputs Derivative Assets Derivative Liabilities Derivative Assets Derivative Liabilities Level 1—Price quotations in active markets $ — $ — $ — $ — Level 2—Significant other observable inputs — 13 — — Level 3—Significant unobservable inputs — — — — Total $ — $ 13 $ — $ — The Company’s board of trustees is responsible for overseeing the valuation of the Company’s portfolio investments at fair value as determined in good faith pursuant to FS/EIG Advisor’s valuation policy. The Company’s board of trustees has designated FS/EIG Advisor with day-to-day responsibility for implementing the portfolio valuation process set forth in FS/EIG Advisor’s valuation policy. The Company’s investments consist primarily of investments that were acquired directly from the issuer. Debt investments, for which broker quotes or pricing information from third-party pricing services are not generally available, are valued by FS/EIG Advisor with the assistance of independent valuation firms, which determine a valuation range of fair value for such investments by considering, among other factors, the borrower’s ability to adequately service its debt, prevailing interest rates for like investments, call features, anticipated prepayments and other relevant terms of the investments. Except as described below, all of the Company’s equity/other investments are valued by independent valuation firms, which determine the fair value of such investments by considering, among other factors, contractual rights ascribed to such investments, as well as various income scenarios and multiples of earnings before interest, taxes, depreciation and amortization, or EBITDA, cash flows, net income, revenues or, in limited instances, book value, PV-10 multiples or liquidation value. The Company’s investment in SIIJV was previously valued by an independent valuation firm. FS/EIG Advisor has fair valued SIIJV. An investment that is newly issued and purchased near the date of the financial statements is valued at cost if FS/EIG Advisor determines that the cost of such investment is the best indication of its fair value. Such investments described above are typically classified as Level 3 within the fair value hierarchy. Investments that are traded on an active public market are valued at their closing price as of the date of the financial statements and are classified as Level 1 within the fair value hierarchy. Except as described above, FS/EIG Advisor typically values the Company’s other investments by using the midpoint of the prevailing bid and ask prices from dealers on the date of the relevant period end, which are provided by an independent third-party pricing service and screened for validity by such service and are typically classified as Level 2 within the fair value hierarchy. In determining the fair values of fixed price swaps, FS/EIG Advisor utilizes an industry-standard pricing model that considers various inputs including quoted forward prices for commodities, time value and current market and contractual prices for the underlying instruments. The fair value of the equity total return swap is determined daily based on the market price of the underlying asset. The fair value of the loan total return swaps is determined daily based on the bid price of the underlying asset provided by the counterparty. These assumptions are observable in the marketplace or can be corroborated by active markets or broker quotes and are typically classified as Level 2 within the fair value hierarchy. FS/EIG Advisor periodically benchmarks the bid and ask prices it receives from the third-party pricing service and/or dealers and independent valuation firms, as applicable, against the actual prices at which the Company purchases and sells its investments. Based on the results of the benchmark analysis and the experience of the Company’s management in purchasing and selling these investments, FS/EIG Advisor believes that these prices are reliable indicators of fair value. FS/EIG Advisor reviewed the valuation determinations made with respect to these investments in a manner consistent with FS/EIG Advisor’s valuation policy. The following is a reconciliation for the nine months ended September 30, 2024 and 2023 of investments for which significant unobservable inputs (Level 3) were used in determining fair value: For the Nine Months Ended September 30, 2024 Senior Secured Loans—First Lien Senior Secured Loans—Second Lien Senior Secured Bonds Subordinated Debt Asset Based Finance Sustainable Infrastructure Investments, LLC Equity/Other Total Fair value at beginning of period $ 237,307 $ 54,424 $ 9,874 $ — $ — $ 39,427 $ 498,448 $ 839,480 Accretion of discount (amortization of premium) 911 182 356 — — — 509 1,958 Net realized gain (loss) (48,727) (12) (3,519) — — — 43,445 (8,813) Net change in unrealized appreciation (depreciation) 45,762 446 (1,197) 824 (1,909) 6,897 (93,896) (43,073) Purchases 244,536 26,540 34,271 35,182 50,711 — 2,757 393,997 Paid-in-kind interest 1,597 3,240 418 2,097 765 — — 8,117 Sales and repayments (155,051) (3,000) (3,692) — (22,951) — (269,070) (453,764) Transfers into Level 3 (1) — — — — — — 271 271 Transfers out of Level 3 (1) — — — — — — — — Fair value at end of period $ 326,335 $ 81,820 $ 36,511 $ 38,103 $ 26,616 $ 46,324 $ 182,464 $ 738,173 The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date $ (641) $ 446 $ (1,197) $ 824 $ (1,909) $ 6,897 $ (102,906) $ (98,486) For the Nine Months Ended September 30, 2023 Senior Secured Loans—First Lien Senior Secured Loans—Second Lien Senior Secured Bonds Subordinated Debt Sustainable Infrastructure Equity/Other (2) Total Fair value at beginning of period $ 443,245 $ 143,270 $ 10,074 $ 54,374 $ 51,098 $ 892,144 $ 1,594,205 Accretion of discount (amortization of premium) 1,369 710 38 105 — 1,230 3,452 Net realized gain (loss) (2,864) (52) 4 8 — (46,698) (49,602) Net change in unrealized appreciation (depreciation) (47,570) (785) (229) 416 (1,906) (47,133) (97,207) Purchases 65,317 — — — — 246 65,563 Paid-in-kind interest 9,834 — — 4,340 — — 14,174 Sales and repayments (76,948) (73,544) (107) (1,500) — (201,937) (354,036) Transfers into Level 3 (1) — — — — — 810 810 Transfers out of Level 3 (1) — — — — — — — Fair value at end of period $ 392,383 $ 69,599 $ 9,780 $ 57,743 $ 49,192 $ 598,662 $ 1,177,359 The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date $ (50,106) $ (591) $ (229) $ 416 $ (1,906) $ (82,826) $ (135,242) ______________ (1) Transfers into and out of Level 3 are deemed to have occurred as a result of, among other factors, changes in liquidity, the depth and consistency of prices from third-party pricing services and the existence of observable trades in the market. Transfers between levels of the fair value hierarchy are deemed to have occurred at the beginning of the reporting period. For the nine months ended September 30, 2024 and 2023, transfers into or out of Level 3 were due to decreased or increased price transparency. (2) As of September 30, 2024, the Company determined to reclassify investments in the schedule of investments from preferred equity to equity/other. Preferred equity amounts for the nine months ended September 30, 2023 have been reclassified to equity/other to conform to the classifications used to prepare the reconciliation for the nine months ended September 30, 2024 . The valuation techniques and significant unobservable inputs used in recurring Level 3 fair value measurements as of September 30, 2024 and December 31, 2023 were as follows: Type of Investment Fair Value at September 30, 2024 (Unaudited) Valuation Technique (1) Unobservable Input Range Weighted Senior Secured Loans—First Lien $ 291,832 Market Comparables Market Yield (%) 7.8%-19.8% 9.9% EBITDA Multiples (x) 5.3x-5.8x 5.5x 12,495 Cost 22,008 Other (2) Senior Secured Loans—Second Lien 81,820 Market Comparables Market Yield (%) 11.5%-18.5% 14.6% Senior Secured Bonds 36,511 Market Comparables Market Yield (%) 7.6%-12.0% 10.6% Subordinated Debt 38,103 Market Comparables Market Yield (%) 11.2%-11.7% 11.5% Asset Based Finance 21,580 Discounted Cash Flow Discount Rate (%) 16.9%-17.9% 17.4% 5,036 Income (3) Excess Spread (3) 4.3%-4.3% 4.3% Sustainable Infrastructure Investments, LLC 46,324 Other (2) Equity/Other 109,910 Market Comparables Market Yield (%) 10.0%-17.3% 13.8% EBITDA Multiples (x) 2.0x-9.3x 6.3x Production Multiples (MMcfe/d) $2,700.0-$3,100.0 $2,900.0 Proved Reserves Multiples (Bcfe) 0.7x-0.7x 0.7x PV-10 Multiples (x) 1.6x-1.8x 1.7x Net Aircraft Book Value Multiple (x) 1.0x-1.1x 1.0x 67,240 Discounted Cash Flow Discount Rate (%) 8.0%-12.0% 10.0% 1,735 Option Valuation Model Volatility (%) 50.0%-60.0% 55.0% 3,579 Other (2) Total $ 738,173 Type of Investment Fair Value at Valuation Technique (1) Unobservable Input Range Weighted Senior Secured Loans—First Lien $ 212,250 Market Comparables Market Yield (%) 8.2%-20.5% 13.6% EBITDA Multiples (x) 3.9x-4.6x 4.4x 4,807 Discounted Cash Flow Discount Rate (%) 9.0%-13.0% 10.8% 20,250 Other (2) Senior Secured Loans—Second Lien 54,424 Market Comparables Market Yield (%) 12.5%-14.0% 13.1% Senior Secured Bonds 9,874 Market Comparables Market Yield (%) 7.5%-8.5% 8.0% Sustainable Infrastructure Investments, LLC 39,427 Discounted Cash Flow Discount Rate (%) 8.0%-10.0% 9.0% Equity/Other 311,150 Market Comparables Market Yield (%) 10.0%-23.0% 17.5% EBITDA Multiples (x) 2.7x-13.0x 6.0x Production Multiples (MMcfe/d) $3,000.0-$3,600.0 $3,300.0 Proved Reserves Multiples (Bcfe) 0.7x-0.7x 0.7x PV-10 Multiples (x) 0.3x-0.4x 0.3x Net Aircraft Book Value Multiple (x) 1.0x-1.1x 1.0x 166,946 Discounted Cash Flow Discount Rate (%) 8.0%-17.1% 16.5% 7,121 Option Valuation Model Volatility (%) 55.0%-65.0% 60.0% 13,231 Other (2) Total $ 839,480 ______________ (1) For investments utilizing a market comparables valuation technique, a significant increase (decrease) in the market yield, in isolation, would result in a significantly lower (higher) fair value measurement, and a significant increase (decrease) in any of the valuation multiples, in isolation, would result in a significantly higher (lower) fair value measurement. For investments utilizing a discounted cash flow valuation technique, a significant increase (decrease) in the discount rate, in isolation, would result in a significantly lower (higher) fair value measurement. For investments utilizing an option valuation model valuation technique, a significant increase (decrease) in the volatility, in isolation, would result in a significantly higher (lower) fair value measurement. (2) Fair valued based on expected outcome of proposed corporate transactions, the expected value of the liquidation preference of the investment or other factors. (3) Fair value of the CLO Warehouse is based on cost plus the excess spread (accrued interest plus interest received less financing cost).

Financing Arrangement

Financing Arrangement	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Financing Arrangement	Financing Arrangement The following tables present a summary of information with respect to the Company’s outstanding financing arrangement as of September 30, 2024 and December 31, 2023. For additional information regarding the financing arrangement, see the notes to the Company’s audited consolidated financial statements contained in its annual report on Form 10-K for the year ended December 31, 2023. Any significant changes to the Company’s financing arrangement during the nine months ended September 30, 2024 are discussed below. As of September 30, 2024 Arrangement (1) Type of Arrangement Rate (2) Amount Amount Maturity Date Barclays Facility Repurchase Term SOFR+3.00% $ 400,000 $ 100,000 September 6, 2026 As of December 31, 2023 Arrangement (1) Type of Arrangement Rate (2) Amount Amount Maturity Date Barclays Facility Repurchase Term SOFR+3.00% $ 400,000 $ 100,000 September 6, 2026 ______________________ (1) The carrying amount outstanding under the facility approximates its fair value, unless otherwise noted. (2) The financing fee under the Barclays Facility is based on three-month term SOFR (with a floor of 0.00%) plus a facility margin calculated monthly as the weighted average of the individual margin of the collateral obligations (subject to a floor, in the aggregate, of 3.00%). For the nine months ended September 30, 2024 and 2023, the components of total interest expense for the Company's financing arrangements were as follows: Nine Months Ended 2024 2023 Arrangement (1) Direct Interest Expense (2) Amortization of Deferred Financing Costs Total Interest Expense Direct Interest Expense (2) Amortization of Deferred Financing Costs and Discount Total Interest Expense Barclays Facility $ 25,655 $ 1,555 $ 27,210 $ 613 $ 125 $ 738 JPMorgan Facility (3) — — — 2,790 238 3,028 Senior Secured Notes (4) — — — 12,760 2,540 15,300 Total $ 25,655 $ 1,555 $ 27,210 $ 16,163 $ 2,903 $ 19,066 ___________________ (1) Borrowings of each of the Company's wholly-owned special-purpose financing subsidiaries are considered borrowings of the Company for purposes of complying with the asset coverage requirements applicable to BDCs under the 1940 Act. (2) Direct interest expense includes the effect of non-usage fees, administration fees and make-whole fees, if any. (3) On February 14, 2023, the Company repaid and terminated the JPMorgan Facility. (4) On May 15, 2023, the Company redeemed 100% of the issued and outstanding Senior Secured Notes at a price equal to 100% of the aggregate principal amount, plus the accrued but unpaid interest through to, but excluding, May 15, 2023. The Company’s average borrowings and weighted average interest rate, including the effect of non-usage fees, for the nine months ended September 30, 2024, were $400,000 and 8.43%, respectively. As of September 30, 2024, the Company’s effective interest rate on borrowings, including the effect of non-usage fees, was 8.35%. The Company’s average borrowings and weighted average interest rate for the period from January 1, 2023 to May 15, 2023, the date on which the Company redeemed 100% of the issued and outstanding Senior Secured Notes, were $557,446 and 7.49%, respectively. The Company had no outstanding borrowings during the period from May 15, 2023 to September 5, 2023. The Company’s average borrowings and weighted average interest rate, including the effect of non-usage fees, for the period from September 6, 2023 (the date on which the Company entered into the Barclays Facility) to September 30, 2023, were $80,000 and 11.03%, respectively. As of September 30, 2023, the Company's effective interest rate on borrowings, including the effect of non-usage fees, was 8.90%. Under its financing arrangements, the Company made certain representations and warranties and was required to comply with various covenants, reporting requirements and other customary requirements for similar financing arrangements. The Company was in compliance with all covenants required by its financing arrangements as of September 30, 2024 and December 31, 2023. Barclays Facility On September 6, 2023, the Company, through two wholly-owned, special purpose financing subsidiaries, FSSL Finance BB AssetCo LLC, or FSSL Finance BB AssetCo, and FSSL Finance BB Seller LLC, or FSSL Finance BB Seller, entered into a financing arrangement with Barclays Bank PLC, or Barclays, pursuant to which up to $500,000 will be made available to fund investments in loans and other corporate securities, or together, the Collateral Obligations, and for other general corporate purposes, or the Barclays Facility. The financing fee under the Barclays Facility is based on three-month term SOFR (with a floor of 0.00%) plus a facility margin calculated monthly as the weighted average of the individual margin of the Collateral Obligations (such individual margins ranging from 1.90% to 4.20%, depending on the type of Collateral Obligations; subject to a floor, in the aggregate, of 3.00%). Pursuant to the financing arrangement, the Company may contribute Collateral Obligations from time to time to FSSL Finance BB AssetCo, pursuant to a Sale and Contribution Agreement, dated as of September 6, 2023, between the Company and FSSL Finance BB AssetCo, or the Sale and Contribution Agreement. The assets held by FSSL Finance BB AssetCo secure the obligations of FSSL Finance BB AssetCo under the notes, or the Notes, issued by FSSL Finance BB AssetCo to FSSL Finance BB Seller, pursuant to an indenture, dated as of September 6, 2023, with Computershare Trust Company, N.A., or Computershare, as trustee, or the Indenture. Principal on the Notes will be due and payable on the stated maturity date of July 1, 2033, and the Notes do not bear interest. Pursuant to the Indenture, FSSL Finance BB AssetCo has made certain representations and warranties and is required to comply with various covenants, reporting requirements and other customary requirements for similar transactions. The Indenture contains events of default customary for similar transactions, including, without limitation: (a) failure to make principal payments on the Notes at their stated maturity or any earlier redemption date or to make interest payments on the Notes; (b) failure to disburse amounts in accordance with the priority of payments; (c) occurrence of certain bankruptcy and insolvency events with respect to FSSL Finance BB AssetCo; and (d) occurrence of a Repurchase Date under the Repurchase Agreement (defined below) as a result of an event of default with respect to FSSL Finance BB Seller. FSSL Finance BB Seller acquired and subscribed for the Notes pursuant to a Subscription Agreement, dated as of September 6, 2023, between FSSL Finance BB AssetCo and FSSL Finance BB Seller as the investor. On September 6, 2023, FSSL Finance BB Seller entered into a Master Confirmation in respect of Repurchase Transactions with Barclays, or the Confirmation, which supplements and is subject to the Master Repurchase Agreement, dated as of September 6, 2023, between FSSL Finance BB Seller and Barclays, or the Master Repurchase Agreement, and such Master Repurchase Agreement, as supplemented and evidenced by the Confirmation, or the Repurchase Agreement. Pursuant to the Repurchase Agreement, on one or more occasions beginning September 6, 2023, Barclays began purchasing the Notes held by FSSL Finance BB Seller for an aggregate purchase price of $400,000 outstanding as of September 30, 2024, which price may, subject to satisfaction of certain conditions, increase from time to time up to the maximum aggregate purchase price of $500,000. The scheduled Repurchase Date is September 6, 2026. Pursuant to the Repurchase Agreement, FSSL Finance BB Seller has made certain representations and warranties and is required to comply with various covenants, reporting requirements and other customary requirements for similar transactions. The Repurchase Agreement contains events of default customary for similar financing transactions, including, without limitation: (a) failure to pay the repurchase price upon the applicable payment dates; (b) failure to pay the financing fees and make-whole amounts when due; (c) failure to post collateral as required; (d) occurrence of an event of default under the Indenture, (e) occurrence of insolvency events with respect to FSSL Finance BB Seller; (f) cross default by the Company with respect to its indebtedness above a certain threshold amount and (g) financial covenant breach by the Company. As of September 30, 2024, Notes in an aggregate principal amount of $400,000 had been purchased by FSSL Finance BB Seller from FSSL Finance BB AssetCo and subsequently sold to Barclays under the Barclays Facility for aggregate proceeds of $395,992. The carrying amount outstanding under the Barclays Facility approximates its fair value. The Company funded the purchase of Notes by FSSL Finance BB Seller through a capital contribution to FSSL Finance BB Seller. The Notes issued by FSSL Finance BB AssetCo and purchased by FSSL Finance BB Seller eliminate in consolidation on the Company's financial statements. The Company incurred costs of $6,199 in connection with obtaining the Barclays Facility, which the Company has recorded as deferred financing costs on its consolidated balance sheet and amortizes to interest expense over the life of the Barclays Facility. As of September 30, 2024, $4,008 of such deferred financing costs had yet to be amortized to interest expense. JPMorgan Facility On August 16, 2018, the Company entered into that certain Senior Secured Credit Agreement, by and among the Company, the lenders party thereto, JPMorgan Chase Bank, N.A., or JPMorgan, as administrative agent and collateral agent, and the other parties signatory thereto, or as amended, the JPMorgan Facility. On February 14, 2023, the Company repaid and terminated the JPMorgan Facility. Prior to the termination of the JPMorgan Facility, $305,676 aggregate principal amount of loans were outstanding to the Company and such loans accrued interest at a rate equal to LIBOR (subject to a 0.00% floor) plus 3.00% per annum. The Company incurred certain customary costs and expenses in connection with the termination of the JPMorgan Facility. 7.500% Senior Secured Notes due 2023 On August 16, 2018, the Company, U.S. Bank National Association, or U.S Bank, as trustee, and certain subsidiaries of the Company, entered into an Indenture relating to the Company’s issuance of $500,000 aggregate principal amount of its 7.500% Senior Secured Notes due 2023, or the Senior Secured Notes. On May 15, 2023, the Company redeemed 100% of the issued and outstanding Senior Secured Notes at a price equal to 100% of the aggregate principal amount, plus the accrued but unpaid interest through to, but excluding, May 15, 2023. The Company incurred certain customary costs and expenses in connection with the redemption of the Senior Secured Notes.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies The Company enters into contracts that contain a variety of indemnification provisions. The Company’s maximum exposure under these arrangements is unknown; however, the Company has not had prior claims or losses pursuant to these contracts. FS/EIG Advisor has reviewed the Company’s existing contracts and expects the risk of loss to the Company to be remote. The Company is not currently subject to any material legal proceedings and, to the Company’s knowledge, no material legal proceedings are threatened against the Company. From time to time, the Company may be a party to certain legal proceedings in the ordinary course of business, including proceedings relating to the enforcement of the Company’s rights under contracts with its portfolio companies. While the outcome of any legal proceedings cannot be predicted with certainty, the Company does not expect that any such proceedings will have a material effect upon its financial condition or results of operations. See Note 4 for a discussion of the Company’s commitments to FS/EIG Advisor and its affiliates (including FS Investments) and Note 7 for a discussion of the Company’s unfunded commitments.

Financial Highlights

Financial Highlights	9 Months Ended
	Sep. 30, 2024
Investment Company [Abstract]
Financial Highlights	Financial Highlights The following is a schedule of financial highlights of the Company for the nine months ended September 30, 2024 and the year ended December 31, 2023: Nine Months Ended (Unaudited) Year Ended December 31, 2023 Per Share Data: (1) Net asset value, beginning of period $ 3.43 $ 3.88 Results of operations (2) Net investment income 0.23 0.18 Net realized gain (loss) and unrealized appreciation (depreciation) (0.07) (0.44) Net increase (decrease) in net assets resulting from operations 0.16 (0.26) Shareholder distributions (3) Distributions from net investment income (0.18) (0.19) Net decrease in net assets resulting from shareholder distributions (0.18) (0.19) Capital share transactions Issuance of common shares (4) — — Net increase (decrease) in net assets resulting from capital share transactions — — Net asset value, end of period $ 3.41 $ 3.43 Shares outstanding, end of period 455,506,155 455,506,155 Total return (5) 4.59 % (6.89) % Total return (without assuming reinvestment of distributions) (5) 4.57 % (6.70) % Ratio/Supplemental Data: Net assets, end of period $ 1,554,989 $ 1,562,055 Ratio of net investment income to average net assets (6)(7) 8.96 % 4.77 % Ratio of total operating expenses to average net assets (6) 5.66 % 4.50 % Ratio of management fee offset to average net assets (6) (0.00) % (0.02) % Ratio of net operating expenses to average net assets (6) 5.66 % 4.48 % Ratio of interest expense to average net assets (6) 2.31 % 1.39 % Ratio of federal and state taxes to average net assets (6) 0.08 % 0.15 % Portfolio turnover (8) 47.08 % 45.84 % Total amount of senior securities outstanding, exclusive of treasury securities $ 400,000 $ 400,000 Asset coverage per unit (9) $ 4,887 $ 4,905 Asset coverage ratio (9) 4.89 4.91 _________________________ (1) Per share data may be rounded in order to recompute the ending net asset value per share. (2) The per share data was derived by using the weighted average shares outstanding during the applicable period. (3) The per share data for distributions reflects the actual amount of distributions paid per share during the applicable period. (4) The issuance of common shares on a per share basis reflects the incremental net asset value changes as a result of the issuance of common shares pursuant to the Company’s distribution reinvestment plan. The issuance of common shares at a price that is greater than the net asset value per share results in an increase in net asset value per share. (5) The total return for each period presented was calculated based on the change in net asset value during the applicable period, including the impact of distributions reinvested in accordance with the Company’s distribution reinvestment plan. Following the termination of the Company’s distribution reinvestment plan effective September 15, 2023, the total return for each period presented subsequent to the effective date was calculated based on the change in net asset value during the applicable period, assuming the reinvestment of all distributions at the Company’s net asset value per share as of the end of the applicable period. The total return (without assuming reinvestment of distributions) for each period presented was calculated by taking the net asset value per share as of the end of the applicable period, adding the cash distributions per share which were declared during the applicable period and dividing the total by the net asset value per share at the beginning of the applicable period. The total returns do not consider the effect of any sales commissions or charges that may be incurred in connection with the sale of the Company’s common shares. The total returns include the effect of the issuance of common shares at a net offering price that is greater than net asset value per share, which causes an increase in net asset value per share. The historical calculations of total returns in the table should not be considered representations of the Company’s future total returns, which may be greater or less than the returns shown in the table due to a number of factors, including the Company’s ability or inability to make investments in companies that meet its investment criteria, the interest rates payable on the debt securities the Company acquires, the level of the Company’s expenses, variations in and the timing of the recognition of realized and unrealized gains or losses, the degree to which the Company encounters competition in its markets and general economic conditions. As a result of these factors, results for any previous period should not be relied upon as being indicative of performance in future periods. The total return calculations set forth above represent the total returns on the Company’s investment portfolio during the applicable period and do not represent actual returns to shareholders. (6) Weighted average net assets during the applicable period are used for this calculation. Ratios for the nine months ended September 30, 2024 are annualized. Annualized ratios for the nine months ended September 30, 2024 are not necessarily indicative of the ratios that may be expected for the year ending December 31, 2024. (7) If FS/EIG Advisor had not agreed to offset the amount of any structuring, upfront or certain other fees it or its members received against the management fee payable by the Company, the ratio of net investment income to average net assets would have been 8.96% and 4.75% for the nine months ended September 30, 2024 and the year ended December 31, 2023, respectively. See Note 4 for a discussion of the management fee offset with FS/EIG Advisor. (8) Portfolio turnover for the nine months ended September 30, 2024 is not annualized. (9) Asset coverage per unit is the ratio of the carrying value of the Company’s total consolidated assets, less liabilities and indebtedness not represented by senior securities, to the aggregate amount of senior securities representing indebtedness. Asset coverage per unit is expressed in terms of dollar amounts per $1,000 of indebtedness.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Pay vs Performance Disclosure
Net increase (decrease) in net assets resulting from operations	$ 13,837	$ (27,423)	$ 73,422	$ (84,628)

Insider Trading Arrangements

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

N-2

N-2 - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023	Dec. 31, 2022
Cover [Abstract]
Entity Central Index Key	0001501729
Amendment Flag	false
Securities Act File Number	814-00841
Document Type	10-Q
Entity Registrant Name	FS Specialty Lending Fund
Entity Address, Address Line One	201 Rouse Boulevard
Entity Address, City or Town	Philadelphia
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	19112
City Area Code	215
Local Phone Number	495-1150
Entity Emerging Growth Company	false
Financial Highlights [Abstract]
Senior Securities Amount	$ 400,000	$ 400,000
Senior Securities Coverage per Unit	$ 4,887	$ 4,905
General Description of Registrant [Abstract]
NAV Per Share	$ 3.41	$ 3.43	$ 3.88

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2024
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation: The accompanying unaudited consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America, or GAAP, for interim financial information and with the instructions for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. For a more complete discussion of significant accounting policies and certain other information, the Company’s interim unaudited consolidated financial statements should be read in conjunction with its audited consolidated financial statements as of and for the year ended December 31, 2023 included in the Company’s annual report on Form 10-K. Operating results for the nine months ended September 30, 2024 are not necessarily indicative of the results that may be expected for the year ending December 31, 2024. The December 31, 2023 consolidated balance sheet and consolidated schedule of investments are derived from the Company's audited consolidated financial statements as of and for the year ended December 31, 2023. The Company is considered an investment company under GAAP and follows the accounting and reporting guidance applicable to investment companies under Accounting Standards Codification Topic 946, Financial Services— Investment Companies. The Company has evaluated the impact of subsequent events through the date the unaudited consolidated financial statements were issued and filed with the Securities and Exchange Commission, or the SEC.
Use of Estimates	Use of Estimates: The preparation of the unaudited consolidated financial statements in conformity with 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 revenues and expenses during the reporting period. Actual results could differ from those estimates. Many of the amounts have been rounded, and all amounts are in thousands, except share and per share amounts.
Capital Gains Incentive Fee and Subordinated Income Incentive Fee	Capital Gains Incentive Fee: Subordinated Income Incentive Fee:
Reclassifications	Reclassifications: Certain amounts in the unaudited consolidated financial statements for the nine months ended September 30, 2023 may have been reclassified to conform to the classifications used to prepare the unaudited consolidated financial statements for the nine months ended September 30, 2024.
Revenue Recognition	Revenue Recognition: Security transactions are accounted for on the trade date. The Company records interest income on an accrual basis to the extent that it expects to collect such amounts. The Company records dividend income on the ex-dividend date. Distributions received from limited liability company, or LLC, and limited partnership, or LP, investments are evaluated to determine if the distribution should be recorded as dividend income or a return of capital. The Company does not accrue as a receivable interest or dividends on loans and securities if it has reason to doubt its ability to collect such income. The Company’s policy is to place investments on non-accrual status when there is reasonable doubt that interest income will be collected. The Company considers many factors relevant to an investment when placing it on or removing it from non-accrual status including, but not limited to, the delinquency status of the investment, economic and business conditions, the overall financial condition of the underlying investment, the value of the underlying collateral, bankruptcy status, if any, and any other facts or circumstances relevant to the investment. If there is reasonable doubt that the Company will receive any previously accrued interest, then the accrued interest will be written-off. Payments received on non-accrual investments may be recognized as income or applied to principal depending upon the collectability of the remaining principal and interest. Non-accrual investments may be restored to accrual status when principal and interest become current and are likely to remain current based on the Company’s judgment.
Collateralized Loan Obligation - Warehouses	The Company invests in a Collateralized Loan Obligation, or CLO. Interest income from investments in the “equity” class of the CLO (in the Company's case, subordinated notes) is recorded based upon an estimation of an effective yield to expected maturity utilizing assumed cash flows in accordance with Accounting Standards Codification Topic 325-40-35, Beneficial Interests in Securitized Financial Assets , or ASC Topic 325. The Company monitors the expected cash inflows from its equity investments in the CLO, including the expected principal repayments. The effective yield is determined and updated quarterly. Collateralized Loan Obligation – Warehouses: A Collateralized Loan Obligation Warehouse, or CLO Warehouse, is an entity organized for the purpose of holding syndicated bank loans, also known as leveraged loans, prior to the issuance of securities from that same vehicle. During the warehouse period, a CLO Warehouse will secure investments and build a portfolio of primarily leveraged loans and other debt obligations. The warehouse period terminates when the collateralized loan obligation vehicle issues various tranches of securities to the market. At this time, financing through the issuance of debt securities and subordinated notes is used to repay the bank financing. The fair value of the Company’s investment in the CLO Warehouse is determined by adding the excess spread (accrued interest plus interest received less financing cost) to the Company’s initial investment in the CLO Warehouse. Consistent with Accounting Standards Codification Topic 820, Fair Value Measurements and Disclosure
Derivative Instruments	Derivative Instruments: The Company’s derivative instruments may include fixed price swaps and equity total return swaps. The Company recognizes all derivative instruments as assets or liabilities at fair value in its consolidated financial statements. Derivative contracts entered into by the Company are not designated as hedging instruments for accounting purposes, and as a result, the Company presents changes in fair value through net change in unrealized appreciation (depreciation) on swap contracts in the consolidated statements of operations. Realized gains and losses of the derivative instruments are included in net realized gain (loss) on swap contracts in the consolidated statements of operations.

Share Transactions (Tables)

Share Transactions (Tables)	9 Months Ended
	Sep. 30, 2024
Equity [Abstract]
Schedule of Common Stock Transactions	Below is a summary of transactions with respect to the Company’s common shares during the nine months ended September 30, 2024 and 2023: Nine Months Ended 2024 2023 Shares Amount Shares Amount Reinvestment of Distributions (1) — $ — 4,040,561 $ 15,549 Proceeds from Share Transactions — $ — 4,040,561 $ 15,549 ______________ (1) On September 15, 2023, the Company's second amended and restated distribution reinvestment plan terminated.

Related Party Transactions (Tab

Related Party Transactions (Tables)	9 Months Ended
	Sep. 30, 2024
Related Party Transactions [Abstract]
Schedule of the Fees and Expenses Accrued Under Investment Advisory Agreement	The following table describes the fees and expenses accrued under the FS/EIG investment advisory agreement during the three and nine months ended September 30, 2024 and 2023: Three Months Ended Nine Months Ended Related Party Source Agreement Description 2024 2023 2024 2023 FS/EIG Advisor FS/EIG investment advisory agreement Base Management Fee (1) $ 8,761 $ 7,715 $ 26,835 $ 26,620 FS/EIG Advisor FS/EIG investment advisory agreement Administrative Services Expenses (2) $ 1,552 $ 1,887 $ 4,622 $ 4,566 _________________________ (1) During the nine months ended September 30, 2024 and 2023, $26,490 and $30,090, respectively, in base management fees were paid to FS/EIG Advisor. The base management fee amount shown in the table above is shown net of $3 and $63 in structuring, upfront or certain other fees received by FS/EIG Advisor or its members and offset against base management fees for the three months ended September 30, 2024 and 2023, respectively, and $6 and $337 in structuring, upfront or certain other fees received by FS/EIG Advisor or its members and offset against base management fees for the nine months ended September 30, 2024 and 2023, respectively. As of September 30, 2024 , $8,761 in base management fees were payable to FS/EIG Advisor. (2) During the nine months ended September 30, 2024 and 2023, $2,934 and $2,386, respectively, of the accrued administrative services expenses related to the allocation of costs of administrative personnel for services rendered to the Company by FS/EIG Advisor and the remainder related to other reimbursable expenses. The Company paid $3,295 and $4,017 in administrative services expenses to FS/EIG Advisor, or its affiliates, during the nine months ended September 30, 2024 and 2023, respectively.

Distributions (Tables)

Distributions (Tables)	9 Months Ended
	Sep. 30, 2024
Income Tax Disclosure [Abstract]
Schedule of Cash Distributions Paid on Common Stock Including Tax Basis	The following table reflects the cash distributions per share that the Company declared on its common shares during the nine months ended September 30, 2024 and 2023: Distribution For the Three Months Ended Per Share Amount Fiscal 2023 March 31, 2023 $ 0.0300 $ 13,584 June 30, 2023 0.0300 13,624 September 30, 2023 — — Total $ 0.0600 $ 27,208 Fiscal 2024 March 31, 2024 (1) $ 0.0034 $ 1,549 June 30, 2024 0.0866 39,447 September 30, 2024 0.0867 39,492 Total $ 0.1767 $ 80,488 _________________________ (1) For the quarter ended December 31, 2023, the distribution amount per share was $0.0643, comprised of an initial distribution per share of $0.0609 declared in December 2023 and the remaining distribution per share of $0.0034 declared in January 2024, collectively representing an annualized distribution rate to shareholders of 7.5%. The following table reflects the sources of the cash distributions on a tax basis that the Company declared on its common shares during the nine months ended September 30, 2024 and 2023: Nine Months Ended 2024 2023 Source of Distribution Distribution Amount Percentage Distribution Amount Percentage Net investment income (1) $ 80,488 100 % $ 27,208 100 % Short-term capital gains proceeds from the sale of assets — — — — Long-term capital gains proceeds from the sale of assets — — — — Total $ 80,488 100 % $ 27,208 100 % _________________________ (1) During the nine months ended September 30, 2024 and 2023, 90.8% and 83.8%, respectively, of the Company's gross investment income was attributable to cash income earned, 5.0% and 12.3%, respectively, was attributable to paid-in-kind, or PIK, interest and 4.2% and 3.9%, respectively, was attributable to non-cash accretion of discount.

Financial Instruments (Tables)

Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Fixed Price Swap Positions	The following table presents the fair value of open swap contracts (which are not considered to be hedging instruments for accounting purposes) as of September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Instrument Derivative Assets Derivative Liabilities (1) Derivative Assets Derivative Liabilities Nomura Total Return Swap $ — $ — $ — $ — BNP Paribas Total Return Swap — (13) — — Total $ — $ (13) $ — $ — ______________ (1) Reflected on the Company's consolidated balance sheets as: Unrealized depreciation on swap contracts.
Schedule of Realized and Unrealized Gain (Loss) on Derivative Instruments	The effect of swap contracts (which are not considered to be hedging instruments for accounting purposes) on the Company's statements of operations for the nine months ended September 30, 2024 and 2023 were as follows: Net Realized Gains (Losses) (1) Net Change in Unrealized (2) Nine Months Ended Nine Months Ended Instrument 2024 2023 2024 2023 Commodity Fixed Price Swaps—Crude Oil $ — $ (259) $ — $ 168 Commodity Fixed Price Swaps—Natural Gas — 348 — 162 Nomura Total Return Swap 6,214 (1) — 70 BNP Paribas Total Return Swap 843 — (13) — Total $ 7,057 $ 88 $ (13) $ 400 ______________ (1) Reflected on the Company's consolidated statements of operations as: Net realized gain (loss) on swap contracts. (2) Reflected on the Company's consolidated statements of operations as: Net change in unrealized appreciation (depreciation) on swap contracts.
Schedule of Offsetting Liabilities	The following table presents the Company’s derivative assets and liabilities by counterparty, net of amounts available for offset under a master netting agreement and net of any collateral received or pledged by the Company for such assets and liabilities as of September 30, 2024: As of September 30, 2024 Counterparty Derivative Assets Derivative Liabilities Net Value of Derivatives Non-Cash Collateral (Received) Pledged (1) Cash Collateral (Received) Pledged (1) Net Amount of Derivative Assets (Liabilities) (2) BNP Paribas — $ (13) $ (13) — — $ (13) ______________ (1) In some instances, the actual amount of the collateral received and/or pledged may be more than the amount shown due to overcollateralization. (2) Net amount of derivative assets and liabilities represents the net amount due from the counterparty to the Company and the net amount due from the Company to the counterparty, respectively, in the event of default.
Schedule of Offsetting Assets	The following table presents the Company’s derivative assets and liabilities by counterparty, net of amounts available for offset under a master netting agreement and net of any collateral received or pledged by the Company for such assets and liabilities as of September 30, 2024: As of September 30, 2024 Counterparty Derivative Assets Derivative Liabilities Net Value of Derivatives Non-Cash Collateral (Received) Pledged (1) Cash Collateral (Received) Pledged (1) Net Amount of Derivative Assets (Liabilities) (2) BNP Paribas — $ (13) $ (13) — — $ (13) ______________ (1) In some instances, the actual amount of the collateral received and/or pledged may be more than the amount shown due to overcollateralization. (2) Net amount of derivative assets and liabilities represents the net amount due from the counterparty to the Company and the net amount due from the Company to the counterparty, respectively, in the event of default.

Investment Portfolio (Tables)

Investment Portfolio (Tables)	9 Months Ended
	Sep. 30, 2024
Schedule of Investments [Abstract]
Schedule of Investments	The following table summarizes the composition of the Company’s investment portfolio at cost and fair value as of September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Amortized Cost (1) Fair Value Percentage Amortized Cost (1) Fair Value Percentage Senior Secured Loans—First Lien $ 1,217,691 $ 1,209,850 72 % $ 878,013 $ 825,158 54 % Senior Secured Loans—Second Lien 82,014 81,820 5 % 55,064 54,424 4 % Senior Secured Bonds 106,242 106,875 6 % 82,793 84,468 5 % Subordinated Debt 37,279 38,103 2 % — — — Asset Based Finance 28,525 26,616 1 % — — — Sustainable Infrastructure Investments, LLC 43,150 46,324 3 % 43,150 39,427 3 % Equity/Other 241,552 182,464 11 % 463,911 498,719 33 % Short-Term Investments — — — 20,994 21,000 1 % Total $ 1,756,453 $ 1,692,052 100 % $ 1,543,925 $ 1,523,196 100 % ______________ (1) Amortized cost represents the original cost adjusted for the amortization of premiums and/or accretion of discounts, as applicable, on investments. The table below describes investments by industry classification and enumerates the percentage, by fair value, of the total portfolio assets in such industries as of September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Industry Classification Fair Value Percentage Fair Value Percentage Consumer Services $ 236,008 14 % $ 156,089 10 % Energy—Upstream 185,965 11 % 309,456 20 % Capital Goods 170,764 10 % 116,454 8 % Health Care Equipment & Services 131,827 8 % 73,105 5 % Commercial & Professional Services (1) 125,957 7 % 62,036 4 % Materials 94,211 6 % 49,653 3 % Media & Entertainment (1) 89,053 5 % 19,829 1 % Energy—Midstream 84,694 5 % 303,175 20 % Consumer Discretionary Distribution & Retail 84,352 5 % 37,428 3 % Consumer Durables & Apparel 81,039 5 % — — Financial Services (1) 77,585 5 % 83,197 6 % Automobiles & Components 48,891 3 % 39,521 3 % Consumer Staples Distribution & Retail 45,346 3 % 18,830 1 % Household & Personal Products 40,819 2 % 20,858 1 % Telecommunication Services 39,710 2 % — — Transportation 31,042 2 % 30,157 2 % Software & Services (1) 24,622 1 % — — Pharmaceuticals, Biotechnology & Life Sciences 20,251 1 % 19,300 1 % Insurance 18,702 1 % 20,251 1 % Real Estate Management & Development 12,495 1 % — — Energy—Power 2,395 0 % 69,696 5 % Energy—Service & Equipment (1) — — 33,734 2 % U.S. Treasury — — 21,000 1 % Sustainable Infrastructure Investments, LLC (2) 46,324 3 % 39,427 3 % Total $ 1,692,052 100 % $ 1,523,196 100 % _____________________ (1) FS/EIG Advisor monitors the industry classification of the Company’s investments and may from time to time reclassify such investments if it determines such reclassification is appropriate. During the nine months ended September 30, 2024, each of the three investments had their industries re-classified from Financial Services to Media & Entertainment, Commercial & Professional Services and Software & Services. During the year ended December 31, 2023, two investments had their industry re-classified from Energy—Industrials to Commercial & Professional Services, and one investment had its industry re-classified from Energy—Service & Equipment to Commercial & Professional Services. (2) Sustainable Infrastructure Investments, LLC is comprised of midstream and renewables assets in the Energy sector.
Schedule of Nonconsolidated Subsidiary Portfolio	Below is a summary of SIIJV's portfolio, followed by a listing of the individual loans in SIIJV's portfolio as of September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Total investments (1) $ 104,101 $ 170,083 Weighted average current interest rate on debt investments (2) 6.79 % 7.45 % Number of portfolio assets in SIIJV 3 6 Largest investment in a single portfolio company (1) $ 55,422 $ 57,227 _____________________ (1) At cost. (2) Computed as the (a) annual stated interest rate on accruing debt, divided by (b) total debt at par amount. Sustainable Infrastructure Investments, LLC Portfolio As of September 30, 2024 (Unaudited) Portfolio Company (a)(b) Energy Industry Rate (c) Maturity Principal Amortized Fair (d) Senior Secured Loans—First Lien—100.0% FLNG Liquefaction 2, LLC Midstream S+150 12/31/26 $ 25,052 $ 25,052 $ 25,052 NES Hercules Class B Member, LLC Renewables S+178 1/31/28 23,627 23,627 23,627 ST EIP Holdco LLC Midstream S+250 11/5/24 55,422 55,422 55,422 Total Senior Secured Loans—First Lien 104,101 104,101 TOTAL INVESTMENTS—100.0% $ 104,101 $ 104,101 Sustainable Infrastructure Investments, LLC Portfolio As of December 31, 2023 Portfolio Company (a)(b) Energy Industry Rate (c) Maturity Principal Amortized Fair (d) Senior Secured Loans—First Lien—100.0% Blue Heron Intermediate Holdco I, LLC Midstream S+188 4/22/24 $ 30,661 $ 30,661 $ 30,692 Copper Mountain Solar 3, LLC Renewables S+188 5/31/25 16,104 16,104 16,172 FLNG Liquefaction 2, LLC Midstream S+150 12/31/26 26,567 26,567 26,557 NES Hercules Class B Member, LLC Renewables S+163 1/31/28 24,176 24,176 24,769 ST EIP Holdco LLC Midstream S+250 11/5/24 57,227 57,227 57,143 Top of the World Wind Energy LLC Renewables S+213 12/1/28 15,348 15,348 15,616 Total Senior Secured Loans—First Lien 170,083 170,949 TOTAL INVESTMENTS—100.0% $ 170,083 $ 170,949 _____________________ Percentages are shown as a percentage of total investments. (a) Security may be an obligation of one or more entities affiliated with the named company. (b) Security or portion thereof is held within Seine Funding and is pledged as collateral supporting the amounts outstanding under the Seine Funding Facility. (c) Certain variable rate securities in SIIJV's portfolio bear interest at a rate determined by a publicly disclosed base rate plus a basis point spread. As of September 30, 2024 and December 31, 2023, the three-month SOFR, or S, was 4.59% and 5.33%, respectively. SOFR based contracts may include a credit spread adjustment that is charged in addition to the base rate and basis point spread. (d) Security is classified as Level 3 and fair value is determined in accordance with SIIJV’s valuation process. Below is selected balance sheet information for SIIJV as of September 30, 2024 and December 31, 2023: September 30, 2024 December 31, 2023 Selected Balance Sheet Information Total investments, at fair value $ 104,101 $ 170,949 Cash and other assets 34,501 29,089 Total assets $ 138,602 $ 200,038 Debt $ 84,121 $ 145,483 Other liabilities 1,539 3,406 Total liabilities 85,660 148,889 Members' equity $ 52,942 $ 51,149 Below is selected statement of operations information for SIIJV for the three and nine months ended September 30, 2024 and 2023: Three Months Ended Nine Months Ended 2024 2023 2024 2023 Selected Statement of Operations Information Total investment income $ 2,572 $ 5,272 $ 8,835 $ 15,083 Expenses Interest expense 1,484 3,410 5,364 9,870 Administrative services 66 46 130 134 Custodian and accounting fees 83 58 174 161 Professional services 41 70 117 170 Other 5 11 26 31 Total expenses 1,679 3,595 5,811 10,366 Net investment income 893 1,677 3,024 4,717 Net realized and unrealized gain (loss) 1 (2,273) (1,231) (937) Net increase (decrease) in net assets resulting from operations $ 894 $ (596) $ 1,793 $ 3,780

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2024
Fair Value Disclosures [Abstract]
Schedule of Fair Value Hierarchy of Investments	As of September 30, 2024 and December 31, 2023, the Company’s investments were categorized as follows in the fair value hierarchy: Valuation Inputs September 30, 2024 December 31, 2023 Level 1—Price quotations in active markets $ — $ — Level 2—Significant other observable inputs 953,879 683,716 Level 3—Significant unobservable inputs 738,173 839,480 Total $ 1,692,052 $ 1,523,196
Schedule of Fair Value Hierarchy of Assets and Liabilities	As of September 30, 2024 and December 31, 2023, the Company’s swap contracts were categorized as follows in the fair value hierarchy. September 30, 2024 December 31, 2023 Valuation Inputs Derivative Assets Derivative Liabilities Derivative Assets Derivative Liabilities Level 1—Price quotations in active markets $ — $ — $ — $ — Level 2—Significant other observable inputs — 13 — — Level 3—Significant unobservable inputs — — — — Total $ — $ 13 $ — $ —
Schedule of Fair Value of Assets Rollforward	The following is a reconciliation for the nine months ended September 30, 2024 and 2023 of investments for which significant unobservable inputs (Level 3) were used in determining fair value: For the Nine Months Ended September 30, 2024 Senior Secured Loans—First Lien Senior Secured Loans—Second Lien Senior Secured Bonds Subordinated Debt Asset Based Finance Sustainable Infrastructure Investments, LLC Equity/Other Total Fair value at beginning of period $ 237,307 $ 54,424 $ 9,874 $ — $ — $ 39,427 $ 498,448 $ 839,480 Accretion of discount (amortization of premium) 911 182 356 — — — 509 1,958 Net realized gain (loss) (48,727) (12) (3,519) — — — 43,445 (8,813) Net change in unrealized appreciation (depreciation) 45,762 446 (1,197) 824 (1,909) 6,897 (93,896) (43,073) Purchases 244,536 26,540 34,271 35,182 50,711 — 2,757 393,997 Paid-in-kind interest 1,597 3,240 418 2,097 765 — — 8,117 Sales and repayments (155,051) (3,000) (3,692) — (22,951) — (269,070) (453,764) Transfers into Level 3 (1) — — — — — — 271 271 Transfers out of Level 3 (1) — — — — — — — — Fair value at end of period $ 326,335 $ 81,820 $ 36,511 $ 38,103 $ 26,616 $ 46,324 $ 182,464 $ 738,173 The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date $ (641) $ 446 $ (1,197) $ 824 $ (1,909) $ 6,897 $ (102,906) $ (98,486) For the Nine Months Ended September 30, 2023 Senior Secured Loans—First Lien Senior Secured Loans—Second Lien Senior Secured Bonds Subordinated Debt Sustainable Infrastructure Equity/Other (2) Total Fair value at beginning of period $ 443,245 $ 143,270 $ 10,074 $ 54,374 $ 51,098 $ 892,144 $ 1,594,205 Accretion of discount (amortization of premium) 1,369 710 38 105 — 1,230 3,452 Net realized gain (loss) (2,864) (52) 4 8 — (46,698) (49,602) Net change in unrealized appreciation (depreciation) (47,570) (785) (229) 416 (1,906) (47,133) (97,207) Purchases 65,317 — — — — 246 65,563 Paid-in-kind interest 9,834 — — 4,340 — — 14,174 Sales and repayments (76,948) (73,544) (107) (1,500) — (201,937) (354,036) Transfers into Level 3 (1) — — — — — 810 810 Transfers out of Level 3 (1) — — — — — — — Fair value at end of period $ 392,383 $ 69,599 $ 9,780 $ 57,743 $ 49,192 $ 598,662 $ 1,177,359 The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date $ (50,106) $ (591) $ (229) $ 416 $ (1,906) $ (82,826) $ (135,242) ______________ (1) Transfers into and out of Level 3 are deemed to have occurred as a result of, among other factors, changes in liquidity, the depth and consistency of prices from third-party pricing services and the existence of observable trades in the market. Transfers between levels of the fair value hierarchy are deemed to have occurred at the beginning of the reporting period. For the nine months ended September 30, 2024 and 2023, transfers into or out of Level 3 were due to decreased or increased price transparency. (2) As of September 30, 2024, the Company determined to reclassify investments in the schedule of investments from preferred equity to equity/other. Preferred equity amounts for the nine months ended September 30, 2023 have been reclassified to equity/other to conform to the classifications used to prepare the reconciliation for the nine months ended September 30, 2024
Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value	The valuation techniques and significant unobservable inputs used in recurring Level 3 fair value measurements as of September 30, 2024 and December 31, 2023 were as follows: Type of Investment Fair Value at September 30, 2024 (Unaudited) Valuation Technique (1) Unobservable Input Range Weighted Senior Secured Loans—First Lien $ 291,832 Market Comparables Market Yield (%) 7.8%-19.8% 9.9% EBITDA Multiples (x) 5.3x-5.8x 5.5x 12,495 Cost 22,008 Other (2) Senior Secured Loans—Second Lien 81,820 Market Comparables Market Yield (%) 11.5%-18.5% 14.6% Senior Secured Bonds 36,511 Market Comparables Market Yield (%) 7.6%-12.0% 10.6% Subordinated Debt 38,103 Market Comparables Market Yield (%) 11.2%-11.7% 11.5% Asset Based Finance 21,580 Discounted Cash Flow Discount Rate (%) 16.9%-17.9% 17.4% 5,036 Income (3) Excess Spread (3) 4.3%-4.3% 4.3% Sustainable Infrastructure Investments, LLC 46,324 Other (2) Equity/Other 109,910 Market Comparables Market Yield (%) 10.0%-17.3% 13.8% EBITDA Multiples (x) 2.0x-9.3x 6.3x Production Multiples (MMcfe/d) $2,700.0-$3,100.0 $2,900.0 Proved Reserves Multiples (Bcfe) 0.7x-0.7x 0.7x PV-10 Multiples (x) 1.6x-1.8x 1.7x Net Aircraft Book Value Multiple (x) 1.0x-1.1x 1.0x 67,240 Discounted Cash Flow Discount Rate (%) 8.0%-12.0% 10.0% 1,735 Option Valuation Model Volatility (%) 50.0%-60.0% 55.0% 3,579 Other (2) Total $ 738,173 Type of Investment Fair Value at Valuation Technique (1) Unobservable Input Range Weighted Senior Secured Loans—First Lien $ 212,250 Market Comparables Market Yield (%) 8.2%-20.5% 13.6% EBITDA Multiples (x) 3.9x-4.6x 4.4x 4,807 Discounted Cash Flow Discount Rate (%) 9.0%-13.0% 10.8% 20,250 Other (2) Senior Secured Loans—Second Lien 54,424 Market Comparables Market Yield (%) 12.5%-14.0% 13.1% Senior Secured Bonds 9,874 Market Comparables Market Yield (%) 7.5%-8.5% 8.0% Sustainable Infrastructure Investments, LLC 39,427 Discounted Cash Flow Discount Rate (%) 8.0%-10.0% 9.0% Equity/Other 311,150 Market Comparables Market Yield (%) 10.0%-23.0% 17.5% EBITDA Multiples (x) 2.7x-13.0x 6.0x Production Multiples (MMcfe/d) $3,000.0-$3,600.0 $3,300.0 Proved Reserves Multiples (Bcfe) 0.7x-0.7x 0.7x PV-10 Multiples (x) 0.3x-0.4x 0.3x Net Aircraft Book Value Multiple (x) 1.0x-1.1x 1.0x 166,946 Discounted Cash Flow Discount Rate (%) 8.0%-17.1% 16.5% 7,121 Option Valuation Model Volatility (%) 55.0%-65.0% 60.0% 13,231 Other (2) Total $ 839,480 ______________ (1) For investments utilizing a market comparables valuation technique, a significant increase (decrease) in the market yield, in isolation, would result in a significantly lower (higher) fair value measurement, and a significant increase (decrease) in any of the valuation multiples, in isolation, would result in a significantly higher (lower) fair value measurement. For investments utilizing a discounted cash flow valuation technique, a significant increase (decrease) in the discount rate, in isolation, would result in a significantly lower (higher) fair value measurement. For investments utilizing an option valuation model valuation technique, a significant increase (decrease) in the volatility, in isolation, would result in a significantly higher (lower) fair value measurement. (2) Fair valued based on expected outcome of proposed corporate transactions, the expected value of the liquidation preference of the investment or other factors. (3) Fair value of the CLO Warehouse is based on cost plus the excess spread (accrued interest plus interest received less financing cost).

Financing Arrangement (Tables)

Financing Arrangement (Tables)	9 Months Ended
	Sep. 30, 2024
Debt Disclosure [Abstract]
Schedule of Outstanding Financing Arrangements	The following tables present a summary of information with respect to the Company’s outstanding financing arrangement as of September 30, 2024 and December 31, 2023. For additional information regarding the financing arrangement, see the notes to the Company’s audited consolidated financial statements contained in its annual report on Form 10-K for the year ended December 31, 2023. Any significant changes to the Company’s financing arrangement during the nine months ended September 30, 2024 are discussed below. As of September 30, 2024 Arrangement (1) Type of Arrangement Rate (2) Amount Amount Maturity Date Barclays Facility Repurchase Term SOFR+3.00% $ 400,000 $ 100,000 September 6, 2026 As of December 31, 2023 Arrangement (1) Type of Arrangement Rate (2) Amount Amount Maturity Date Barclays Facility Repurchase Term SOFR+3.00% $ 400,000 $ 100,000 September 6, 2026 ______________________ (1) The carrying amount outstanding under the facility approximates its fair value, unless otherwise noted. (2) The financing fee under the Barclays Facility is based on three-month term SOFR (with a floor of 0.00%) plus a facility margin calculated monthly as the weighted average of the individual margin of the collateral obligations (subject to a floor, in the aggregate, of 3.00%).
Schedule of Interest Expense	For the nine months ended September 30, 2024 and 2023, the components of total interest expense for the Company's financing arrangements were as follows: Nine Months Ended 2024 2023 Arrangement (1) Direct Interest Expense (2) Amortization of Deferred Financing Costs Total Interest Expense Direct Interest Expense (2) Amortization of Deferred Financing Costs and Discount Total Interest Expense Barclays Facility $ 25,655 $ 1,555 $ 27,210 $ 613 $ 125 $ 738 JPMorgan Facility (3) — — — 2,790 238 3,028 Senior Secured Notes (4) — — — 12,760 2,540 15,300 Total $ 25,655 $ 1,555 $ 27,210 $ 16,163 $ 2,903 $ 19,066 ___________________ (1) Borrowings of each of the Company's wholly-owned special-purpose financing subsidiaries are considered borrowings of the Company for purposes of complying with the asset coverage requirements applicable to BDCs under the 1940 Act. (2) Direct interest expense includes the effect of non-usage fees, administration fees and make-whole fees, if any. (3) On February 14, 2023, the Company repaid and terminated the JPMorgan Facility. (4) On May 15, 2023, the Company redeemed 100% of the issued and outstanding Senior Secured Notes at a price equal to 100% of the aggregate principal amount, plus the accrued but unpaid interest through to, but excluding, May 15, 2023.

Financial Highlights (Tables)

Financial Highlights (Tables)	9 Months Ended
	Sep. 30, 2024
Investment Company [Abstract]
Schedule of Financial Highlights	The following is a schedule of financial highlights of the Company for the nine months ended September 30, 2024 and the year ended December 31, 2023: Nine Months Ended (Unaudited) Year Ended December 31, 2023 Per Share Data: (1) Net asset value, beginning of period $ 3.43 $ 3.88 Results of operations (2) Net investment income 0.23 0.18 Net realized gain (loss) and unrealized appreciation (depreciation) (0.07) (0.44) Net increase (decrease) in net assets resulting from operations 0.16 (0.26) Shareholder distributions (3) Distributions from net investment income (0.18) (0.19) Net decrease in net assets resulting from shareholder distributions (0.18) (0.19) Capital share transactions Issuance of common shares (4) — — Net increase (decrease) in net assets resulting from capital share transactions — — Net asset value, end of period $ 3.41 $ 3.43 Shares outstanding, end of period 455,506,155 455,506,155 Total return (5) 4.59 % (6.89) % Total return (without assuming reinvestment of distributions) (5) 4.57 % (6.70) % Ratio/Supplemental Data: Net assets, end of period $ 1,554,989 $ 1,562,055 Ratio of net investment income to average net assets (6)(7) 8.96 % 4.77 % Ratio of total operating expenses to average net assets (6) 5.66 % 4.50 % Ratio of management fee offset to average net assets (6) (0.00) % (0.02) % Ratio of net operating expenses to average net assets (6) 5.66 % 4.48 % Ratio of interest expense to average net assets (6) 2.31 % 1.39 % Ratio of federal and state taxes to average net assets (6) 0.08 % 0.15 % Portfolio turnover (8) 47.08 % 45.84 % Total amount of senior securities outstanding, exclusive of treasury securities $ 400,000 $ 400,000 Asset coverage per unit (9) $ 4,887 $ 4,905 Asset coverage ratio (9) 4.89 4.91 _________________________ (1) Per share data may be rounded in order to recompute the ending net asset value per share. (2) The per share data was derived by using the weighted average shares outstanding during the applicable period. (3) The per share data for distributions reflects the actual amount of distributions paid per share during the applicable period. (4) The issuance of common shares on a per share basis reflects the incremental net asset value changes as a result of the issuance of common shares pursuant to the Company’s distribution reinvestment plan. The issuance of common shares at a price that is greater than the net asset value per share results in an increase in net asset value per share. (5) The total return for each period presented was calculated based on the change in net asset value during the applicable period, including the impact of distributions reinvested in accordance with the Company’s distribution reinvestment plan. Following the termination of the Company’s distribution reinvestment plan effective September 15, 2023, the total return for each period presented subsequent to the effective date was calculated based on the change in net asset value during the applicable period, assuming the reinvestment of all distributions at the Company’s net asset value per share as of the end of the applicable period. The total return (without assuming reinvestment of distributions) for each period presented was calculated by taking the net asset value per share as of the end of the applicable period, adding the cash distributions per share which were declared during the applicable period and dividing the total by the net asset value per share at the beginning of the applicable period. The total returns do not consider the effect of any sales commissions or charges that may be incurred in connection with the sale of the Company’s common shares. The total returns include the effect of the issuance of common shares at a net offering price that is greater than net asset value per share, which causes an increase in net asset value per share. The historical calculations of total returns in the table should not be considered representations of the Company’s future total returns, which may be greater or less than the returns shown in the table due to a number of factors, including the Company’s ability or inability to make investments in companies that meet its investment criteria, the interest rates payable on the debt securities the Company acquires, the level of the Company’s expenses, variations in and the timing of the recognition of realized and unrealized gains or losses, the degree to which the Company encounters competition in its markets and general economic conditions. As a result of these factors, results for any previous period should not be relied upon as being indicative of performance in future periods. The total return calculations set forth above represent the total returns on the Company’s investment portfolio during the applicable period and do not represent actual returns to shareholders. (6) Weighted average net assets during the applicable period are used for this calculation. Ratios for the nine months ended September 30, 2024 are annualized. Annualized ratios for the nine months ended September 30, 2024 are not necessarily indicative of the ratios that may be expected for the year ending December 31, 2024. (7) If FS/EIG Advisor had not agreed to offset the amount of any structuring, upfront or certain other fees it or its members received against the management fee payable by the Company, the ratio of net investment income to average net assets would have been 8.96% and 4.75% for the nine months ended September 30, 2024 and the year ended December 31, 2023, respectively. See Note 4 for a discussion of the management fee offset with FS/EIG Advisor. (8) Portfolio turnover for the nine months ended September 30, 2024 is not annualized. (9) Asset coverage per unit is the ratio of the carrying value of the Company’s total consolidated assets, less liabilities and indebtedness not represented by senior securities, to the aggregate amount of senior securities representing indebtedness. Asset coverage per unit is expressed in terms of dollar amounts per $1,000 of indebtedness.

Principal Business and Organi_2

Principal Business and Organization (Details)	Sep. 29, 2023	Sep. 28, 2023
Debt and Other Credit Investments
Schedule of Investments [Line Items]
Percentage of investments total assets	80%
Energy Investment
Schedule of Investments [Line Items]
Percentage of investments total assets		80%

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Related Party Transaction [Line Items]
Fee income	$ 0	$ 0
Investment Advisory Agreement - Incentive Rate, Realized Capital Gains | Related Party
Related Party Transaction [Line Items]
Incentive fee (in percent)	20%
Investment Advisory Agreement - Incentive Rate, Quarterly In Arrears Catch-up Threshold | Related Party
Related Party Transaction [Line Items]
Incentive fee (in percent)	20%
Investment Advisory Agreement - Incentive Rate, Quarterly Catch-up Threshold | Related Party
Related Party Transaction [Line Items]
Incentive fee (in percent)	1.625%
Investment Advisory Agreement - Incentive Rate, Annualized Hurdle Rate | Related Party
Related Party Transaction [Line Items]
Incentive fee (in percent)	6.50%
Investment Advisory Agreement - Incentive Rate, Pre-Incentive Fee Net Investment Income Below Catch-Up Threshold | Related Party
Related Party Transaction [Line Items]
Incentive fee (in percent)	2.031%
Investment Advisory Agreement - Incentive Rate, Annualized Catch-Up Threshold | Related Party
Related Party Transaction [Line Items]
Incentive fee (in percent)	8.125%

Share Transactions - Schedule o

Share Transactions - Schedule of Common Stock Transactions (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Equity [Abstract]
Reinvestment of Distributions (in shares)				0	4,040,561
Reinvestment of Distributions	[1]	$ 0	$ 5,161	$ 0	$ 15,549
Proceeds from Share Transactions (in shares)				0	4,040,561
Proceeds from Share Transactions				$ 0	$ 15,549
[1] See Note 3 for a discussion of the Company's common share transactions.

Share Transactions - Narrative

Share Transactions - Narrative (Details) - Distribution Reinvestment Plan - USD ($) $ in Thousands		9 Months Ended
	May 05, 2017	Sep. 30, 2024	Sep. 30, 2023
Class of Stock [Line Items]
Distribution reinvestment plan term	12 months
Distribution reinvestment plan term expiree	3 months
Weighted average number of common shares outstanding in prior year	10%
Weighted average number of common shares outstanding	2.50%
Share distribution not more than net asset value per common share		2.50%
Termination period		30 days
Number of treasury shares repurchased (in shares)		0	0
Minimum investment threshold		$ 5
Written notice period		30 days

Related Party Transactions - Na

Related Party Transactions - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Apr. 26, 2024
Related Party Transaction [Line Items]
Investment company, contractual fee waived	[1]	$ 3	$ 63	$ 6	$ 337
Related Party | Bridge Street Warehouse CLO IV Ltd.
Related Party Transaction [Line Items]
Equity ownership percentage		4.99%		4.99%
Principal amount						$ 354,700
Related Party | Bridge Street Warehouse CLO IV Ltd. | Subordinated Debt
Related Party Transaction [Line Items]
Principal amount						$ 23,700
Related Party | Bridge Street CLO V Ltd.
Related Party Transaction [Line Items]
Interest income		$ 36		$ 36
Related Party | Bridge Street CLO V Ltd. | Reported Value Measurement
Related Party Transaction [Line Items]
Aggregate sustainable infrastructure investments				5,000
Related Party | Bridge Street CLO V Ltd. | Estimate of Fair Value Measurement
Related Party Transaction [Line Items]
Aggregate sustainable infrastructure investments				$ 5,036
Investment Advisory Agreement | Related Party
Related Party Transaction [Line Items]
Management and service fees, base rate				1.75%
Investment company, contractual fee waived		$ 3	$ 63	$ 6	$ 337
[1]See Note 4 for a discussion of the offset by FS/EIG Advisor, LLC, the Company's investment adviser, of certain management fees to which it was otherwise entitled during the applicable period.

Related Party Transactions - Sc

Related Party Transactions - Schedule of the Fees and Expenses Accrued (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Related Party Transaction [Line Items]
Administrative services expenses		$ 1,552	$ 1,887	$ 4,622	$ 4,566
Management fees		8,764	7,778	26,841	26,957
Investment company, contractual fee waived	[1]	3	63	6	337
Management fees payable		8,761		8,761		$ 8,416
Related Party | Investment Advisory Agreement
Related Party Transaction [Line Items]
Base management fee		8,761	7,715	26,835	26,620
Administrative services expenses		1,552	1,887	4,622	4,566
Management fees				26,490	30,090
Investment company, contractual fee waived		3	$ 63	6	337
Management fees payable		$ 8,761		8,761
Accounting and administrative fees				2,934	2,386
Payment for administrative services expenses				$ 3,295	$ 4,017
[1]See Note 4 for a discussion of the offset by FS/EIG Advisor, LLC, the Company's investment adviser, of certain management fees to which it was otherwise entitled during the applicable period.

Distributions - Schedule of Cas

Distributions - Schedule of Cash Distributions (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended									9 Months Ended				12 Months Ended
	Sep. 30, 2024		Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023		Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024		Sep. 30, 2023		Dec. 31, 2023
Derivative [Line Items]
Distributions (in USD per share)	$ 0.0867		$ 0.0866	$ 0.0034	$ 0.0643	$ 0		$ 0.0300	$ 0.0300	$ 0.1767		$ 0.0600		$ 0.19
Amount	$ 39,492	[1]	$ 39,447	$ 1,549		$ 0	[1]	$ 13,624	$ 13,584	$ 80,488	[1]	$ 27,208	[1]
Annualized distribution rate (percent)					7.50%
2023 Q3 Initial Dividends
Derivative [Line Items]
Distributions (in USD per share)					$ 0.0609
2023 Q3 Remaining Dividends
Derivative [Line Items]
Distributions (in USD per share)					$ 0.0034
[1] See Note 5 for a discussion of the sources of distributions paid by the Company.

Distributions - Narrative (Deta

Distributions - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended							9 Months Ended		12 Months Ended
	Oct. 18, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Investment Company, Changes in Net Assets [Line Items]
Distributions (in USD per share)		$ 0.0867	$ 0.0866	$ 0.0034	$ 0.0643	$ 0	$ 0.0300	$ 0.0300	$ 0.1767	$ 0.0600	$ 0.19
Annualized distribution rate (percent)					7.50%
Net asset value per common share at period end (in USD per share)		$ 3.41			$ 3.43				$ 3.41		$ 3.43	$ 3.88
Net asset value common share percentage									2.50%
Short-term and long-term capital loss carryforwards		$ 75,615			$ 1,461,235				$ 75,615		$ 1,461,235
Unrealized gain		65,800			148,817				65,800		148,817
Unrealized loss		178,204			213,339				178,204		213,339
Income tax purposes		1,804,425			1,587,709				1,804,425		1,587,709
Net unrealized appreciation (depreciation)		(112,373)			(64,513)				(112,373)		(64,513)
Subsidiaries
Investment Company, Changes in Net Assets [Line Items]
Deferred tax asset		159,111			142,608				159,111		142,608
Deferred tax liability		0			2,595				0		2,595
Valuation allowances on deferred tax assets		$ 159,111			$ 140,013				159,111		140,013
Current income tax									$ 0		$ 0
Subsequent Event
Investment Company, Changes in Net Assets [Line Items]
Distributions (in USD per share)	$ 0.0853
Annualized distribution rate (percent)	10%
Maximum cap on annualized distribution rate (percent)	15%

Distributions - Schedule of C_2

Distributions - Schedule of Cash Distributions on Common Stock (Details) - USD ($) $ in Thousands	3 Months Ended								9 Months Ended
	Sep. 30, 2024	[1]	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	[1]	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024		Sep. 30, 2023
Distribution Amount
Net investment income									$ 80,488		$ 27,208
Short-term capital gains proceeds from the sale of assets									0		0
Long-term capital gains proceeds from the sale of assets									0		0
Total	$ 39,492		$ 39,447	$ 1,549	$ 0		$ 13,624	$ 13,584	$ 80,488	[1]	$ 27,208	[1]
Percentage
Net investment income									100%		100%
Short-term capital gains proceeds from the sale of assets									0%		0%
Long-term capital gains proceeds from the sale of assets									0%		0%
Total									100%		100%
Gross investment income attributable to cash income earned									90.80%		83.80%
Gross investment income attributable to paid-in-kind interest									5%		12.30%
Gross investment income attributable to non-cash accretion of discount									4.20%		3.90%
[1] See Note 5 for a discussion of the sources of distributions paid by the Company.

Financial Instruments - Narrati

Financial Instruments - Narrative (Details) - USD ($) $ in Thousands		9 Months Ended
	Feb. 15, 2024	Sep. 30, 2024
Loan Total Return Swap Financing | Loans Payable
Derivative [Line Items]
Basis spread on variable rate (percent)	1.65%
Utilization fee (percent)	0.85%
Minimum usage threshold amount	$ 100,000
Nomura Total Return Swap
Derivative [Line Items]
Term of contract		3 years
Nomura Total Return Swap | Nomura Total Return Swap
Derivative [Line Items]
Average monthly notional amount		$ 38,796
Nomura Total Return Swap | BNPP TRS
Derivative [Line Items]
Average monthly notional amount		$ 48,649

Financial Instruments - Schedul

Financial Instruments - Schedule of Fair Value of Open Swap Contracts (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Derivative [Line Items]
Derivative Assets	$ 0	$ 0
Derivative Liabilities	(13)	0
BNP Paribas
Derivative [Line Items]
Derivative Assets	0
Derivative Liabilities	(13)
Nomura Total Return Swap | Nomura Total Return Swap
Derivative [Line Items]
Derivative Assets	0	0
Derivative Liabilities	0	0
Nomura Total Return Swap | BNP Paribas
Derivative [Line Items]
Derivative Assets	0	0
Derivative Liabilities	$ (13)	$ 0

Financial Instruments - Stateme

Financial Instruments - Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net Realized Gains (Losses)	$ 830	$ (138)	$ 7,057	$ 88
Net Change in Unrealized Appreciation (Depreciation)	$ (238)	$ (803)	(13)	400
Commodity Fixed Price Swaps—Crude Oil
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net Realized Gains (Losses)			0	(259)
Net Change in Unrealized Appreciation (Depreciation)			0	168
Commodity Fixed Price Swaps—Natural Gas
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net Realized Gains (Losses)			0	348
Net Change in Unrealized Appreciation (Depreciation)			0	162
Nomura Total Return Swap | Nomura Total Return Swap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net Realized Gains (Losses)			6,214	(1)
Net Change in Unrealized Appreciation (Depreciation)			0	70
Nomura Total Return Swap | BNP Paribas
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net Realized Gains (Losses)			843	0
Net Change in Unrealized Appreciation (Depreciation)			$ (13)	$ 0

Financial Instruments - Sched_2

Financial Instruments - Schedule of Derivative Assets and Liabilities by Counterparty (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 0	$ 0
Derivative Liabilities	(13)	$ 0
BNP Paribas
Derivatives, Fair Value [Line Items]
Derivative Assets	0
Derivative Liabilities	(13)
Net Value of Derivatives	(13)
Non-Cash Collateral (Received) Pledged	0
Cash Collateral (Received) Pledged	0
Net Amount of Derivative Assets (Liabilities)	$ (13)

Investment Portfolio - Schedule

Investment Portfolio - Schedule Of Investment Portfolio At Cost And Fair Value (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2024		Dec. 31, 2023
Schedule of Investments [Line Items]
Amortized Cost	$ 1,756,453	[1]	$ 1,543,925	[2]
Fair Value	1,692,052	[1],[3]	1,523,196	[2],[4]
Net Senior Secured Loans—First Lien
Schedule of Investments [Line Items]
Amortized Cost	1,217,691	[1]	878,013	[2]
Fair Value	1,209,850	[1],[3]	825,158	[2],[4]
Net Senior Secured Loans—Second Lien
Schedule of Investments [Line Items]
Amortized Cost	82,014	[1]	55,064
Fair Value	81,820	[1],[3]	54,424
Senior Secured Bonds
Schedule of Investments [Line Items]
Amortized Cost	106,242	[1]	82,793
Fair Value	106,875	[1],[3]	84,468	[4]
Subordinated Debt
Schedule of Investments [Line Items]
Amortized Cost	37,279	[1]	0
Fair Value	38,103	[1],[3]	0
Asset Based Finance
Schedule of Investments [Line Items]
Amortized Cost	28,525		0
Fair Value	26,616		0
Sustainable Infrastructure Investments, LLC
Schedule of Investments [Line Items]
Amortized Cost	43,150	[1]	43,150
Fair Value	46,324	[1],[3]	39,427
Equity/Other
Schedule of Investments [Line Items]
Amortized Cost	241,552		463,911
Fair Value	182,464		498,719
Short-Term Investments
Schedule of Investments [Line Items]
Amortized Cost	0		20,994	[2]
Fair Value	$ 0		$ 21,000	[2],[4]
Percentage of Portfolio | Customer Concentration Risk | Net Senior Secured Loans—First Lien
Schedule of Investments [Line Items]
Percentage of Portfolio	72%		54%
Percentage of Portfolio | Customer Concentration Risk | Net Senior Secured Loans—Second Lien
Schedule of Investments [Line Items]
Percentage of Portfolio	5%		4%
Percentage of Portfolio | Customer Concentration Risk | Senior Secured Bonds
Schedule of Investments [Line Items]
Percentage of Portfolio	6%		5%
Percentage of Portfolio | Customer Concentration Risk | Subordinated Debt
Schedule of Investments [Line Items]
Percentage of Portfolio	2%		0%
Percentage of Portfolio | Customer Concentration Risk | Asset Based Finance
Schedule of Investments [Line Items]
Percentage of Portfolio	1%		0%
Percentage of Portfolio | Customer Concentration Risk | Sustainable Infrastructure Investments, LLC
Schedule of Investments [Line Items]
Percentage of Portfolio	3%		3%
Percentage of Portfolio | Customer Concentration Risk | Equity/Other
Schedule of Investments [Line Items]
Percentage of Portfolio	11%		33%
Percentage of Portfolio | Customer Concentration Risk | Short-Term Investments
Schedule of Investments [Line Items]
Percentage of Portfolio	0%		1%
Percentage of Portfolio | Customer Concentration Risk | Total Investments
Schedule of Investments [Line Items]
Percentage of Portfolio	100%		100%
[1]Security may be an obligation of one or more entities affiliated with the named company.[2]Security may be an obligation of one or more entities affiliated with the named company.[3]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.[4]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.

Investment Portfolio - Narrativ

Investment Portfolio - Narrative (Details) $ in Thousands, $ in Thousands				9 Months Ended
		Jan. 02, 2020 USD ($)	Jan. 02, 2020 CAD ($)	Sep. 30, 2024 USD ($) company investment		Sep. 30, 2024 CAD ($) company investment		Dec. 31, 2023 USD ($) company investment		Dec. 31, 2023 CAD ($) company investment
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., Capital Goods
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 19,950
Floor rate	[2],[3]			0.50%		0.50%
Variable rate (percent)	[2],[3]			3.50%		3.50%
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., Capital Goods 1
Schedule of Investments [Line Items]
Principal amount	[4],[5],[6]							$ 16,522
Floor rate	[5],[6],[7]							0.50%		0.50%
Variable rate (percent)	[5],[6],[7]							4.25%		4.25%
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., Capital Goods 2
Schedule of Investments [Line Items]
Principal amount	[4],[6],[8]							$ 3,478
Floor rate	[6],[7],[8]							0.50%		0.50%
Variable rate (percent)	[6],[7],[8]							4.25%		4.25%
Investment, Identifier [Axis]: AIRRO (Mauritius) Holdings II, Energy—Power
Schedule of Investments [Line Items]
Principal amount	[4],[9],[10],[11]							$ 22,856
Floor rate	[7],[9],[10],[11]							1.50%		1.50%
Variable rate (percent)	[7],[9],[10],[11]							4%		4%
Investment, Identifier [Axis]: APTIM Corp., Commercial & Professional Services
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 27,500
Variable rate (percent)	[2],[3]			7.50%		7.50%
Investment, Identifier [Axis]: Acrisure, LLC, Insurance
Schedule of Investments [Line Items]
Principal amount				$ 18,849	[1],[2]			$ 20,175	[4],[5]
Variable rate (percent)				3.25%	[2],[3]	3.25%	[2],[3]	4.50%	[5],[7]	4.50%	[5],[7]
Investment, Identifier [Axis]: Aimbridge Acquisition Co. Inc., Consumer Services
Schedule of Investments [Line Items]
Principal amount				$ 26,595	[1],[2]			$ 21,805	[4],[5]
Variable rate (percent)				3.75%	[2],[3]	3.75%	[2],[3]	3.75%	[5],[7]	3.75%	[5],[7]
Investment, Identifier [Axis]: Allegiant Travel Co., Transportation
Schedule of Investments [Line Items]
Principal amount				$ 12,271	[1],[12]			$ 10,601	[4],[11]
Investment, Identifier [Axis]: Allied Universal Holdco LLC, Consumer Services
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 22,786
Floor rate	[2],[3]			0.50%		0.50%
Variable rate (percent)	[2],[3]			3.75%		3.75%
Investment, Identifier [Axis]: Allied Universal Holdco LLC, Consumer Services 1
Schedule of Investments [Line Items]
Principal amount	[4],[5]							$ 9,975
Floor rate	[5],[7]							0.50%		0.50%
Variable rate (percent)	[5],[7]							4.75%		4.75%
Investment, Identifier [Axis]: Allied Universal Holdco LLC, Consumer Services 2
Schedule of Investments [Line Items]
Principal amount	[4],[5]							$ 9,929
Floor rate	[5],[7]							0.50%		0.50%
Variable rate (percent)	[5],[7]							3.75%		3.75%
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Energy—Service & Equipment
Schedule of Investments [Line Items]
Principal amount	[4],[9],[13],[14],[15]							$ 70,277
Investment, Identifier [Axis]: American Auto Auction Group, LLC, Capital Goods
Schedule of Investments [Line Items]
Principal amount				$ 23,799	[1],[2]			$ 9,975	[4],[5]
Floor rate				0.80%	[2],[3]	0.80%	[2],[3]	0.80%	[5],[7]	0.80%	[5],[7]
Variable rate (percent)				5%	[2],[3]	5%	[2],[3]	5%	[5],[7]	5%	[5],[7]
Investment, Identifier [Axis]: Ansira Partners, Inc., Media & Entertainment 1
Schedule of Investments [Line Items]
Principal amount	[1],[16]			$ 393
Floor rate	[3],[16]			1.50%		1.50%
Variable rate (percent)	[3],[16]			6.75%		6.75%
Investment, Identifier [Axis]: Ansira Partners, Inc., Media & Entertainment 2
Schedule of Investments [Line Items]
Principal amount	[1],[2],[16]			$ 36,323
Floor rate	[2],[3],[16]			1.50%		1.50%
Variable rate (percent)	[2],[3],[16]			6.75%		6.75%
Investment, Identifier [Axis]: Ansira Partners, Inc., Media & Entertainment 3
Schedule of Investments [Line Items]
Principal amount	[1],[16],[17]			$ 3,534
Floor rate	[3],[16],[17]			1.50%		1.50%
Variable rate (percent)	[3],[16],[17]			6.75%		6.75%
Investment, Identifier [Axis]: Aretec Escrow Issuer Inc., Financial Services
Schedule of Investments [Line Items]
Principal amount	[4],[5]							$ 7,000
Investment, Identifier [Axis]: Aretec Escrow Issuer, Inc., Financial Services
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 2,000
Investment, Identifier [Axis]: Aretec Group, Inc., Financial Services
Schedule of Investments [Line Items]
Principal amount				$ 6,800	[1],[2]			$ 9,352	[4],[5],[6]
Variable rate (percent)				4%	[2],[3]	4%	[2],[3]	4.50%	[5],[6],[7]	4.50%	[5],[6],[7]
Investment, Identifier [Axis]: Auris Luxembourg III S.a r.l, Health Care Equipment & Services
Schedule of Investments [Line Items]
Principal amount				$ 22,802	[1],[2],[12]			$ 20,287	[4],[5],[11]
Variable rate (percent)				4.25%	[2],[3],[12]	4.25%	[2],[3],[12]	3.75%	[5],[7],[11]	3.75%	[5],[7],[11]
Investment, Identifier [Axis]: Aveanna Healthcare LLC, Health Care Equipment & Services
Schedule of Investments [Line Items]
Principal amount				$ 20,748	[1],[2]			$ 15,909	[4],[5]
Floor rate				0.50%	[2],[3]	0.50%	[2],[3]	0.50%	[5],[7]	0.50%	[5],[7]
Variable rate (percent)				3.75%	[2],[3]	3.75%	[2],[3]	3.75%	[5],[7]	3.75%	[5],[7]
Investment, Identifier [Axis]: BCPE Empire Holdings, Inc., Consumer Services
Schedule of Investments [Line Items]
Principal amount				$ 22,288	[1],[2]			$ 24,900	[4],[5]
Floor rate				0.50%	[2],[3]	0.50%	[2],[3]	0.50%	[5],[7]	0.50%	[5],[7]
Variable rate (percent)				4%	[2],[3]	4%	[2],[3]	4.75%	[5],[7]	4.75%	[5],[7]
Investment, Identifier [Axis]: Bridge Street CLO IV Ltd., Subordinated Notes, Financial Services
Schedule of Investments [Line Items]
Principal amount	[1],[12],[16],[18],[19],[20]			$ 23,700
Investment, Identifier [Axis]: Bridge Street Warehouse CLO V Ltd., Financial Services
Schedule of Investments [Line Items]
Principal amount	[1],[12],[16],[20],[21]			5,000
Investment, Identifier [Axis]: Brock Holdings III, LLC, Capital Goods
Schedule of Investments [Line Items]
Principal amount	[1],[2],[12]			$ 8,500
Floor rate	[2],[3],[12]			0.50%		0.50%
Variable rate (percent)	[2],[3],[12]			6%		6%
Investment, Identifier [Axis]: CCS-CMGC Holdings, Inc., Health Care Equipment & Services
Schedule of Investments [Line Items]
Principal amount				$ 27,622	[1],[2],[22],[23]			$ 21,465	[4],[5]
Variable rate (percent)				5.50%	[2],[3],[22],[23]	5.50%	[2],[3],[22],[23]	5.50%	[5],[7]	5.50%	[5],[7]
Investment, Identifier [Axis]: CPM Holdings, Inc., Capital Goods
Schedule of Investments [Line Items]
Principal amount				$ 24,813	[1],[2]			$ 20,000	[4],[5]
Floor rate				0.50%	[2],[3]	0.50%	[2],[3]	0.50%	[5],[7]	0.50%	[5],[7]
Variable rate (percent)				4.50%	[2],[3]	4.50%	[2],[3]	4.50%	[5],[7]	4.50%	[5],[7]
Investment, Identifier [Axis]: Charlotte Buyer, Inc., Health Care Equipment & Services
Schedule of Investments [Line Items]
Principal amount				$ 17,755	[1],[2]			$ 19,845	[4],[5],[6]
Floor rate				0.50%	[2],[3]	0.50%	[2],[3]	0.50%	[5],[6],[7]	0.50%	[5],[6],[7]
Variable rate (percent)				4.75%	[2],[3]	4.75%	[2],[3]	5.25%	[5],[6],[7]	5.25%	[5],[6],[7]
Investment, Identifier [Axis]: Chinos Intermediate 2, LLC, Consumer Discretionary Distribution & Retail
Schedule of Investments [Line Items]
Principal amount	[1],[24]			$ 16,000
Variable rate (percent)	[3],[24]			6%		6%
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 1
Schedule of Investments [Line Items]
Principal amount				$ 2,145	[1],[16]			$ 20,915	[4],[5],[9]
Floor rate				1%	[3],[16]	1%	[3],[16]	1%	[5],[7],[9]	1%	[5],[7],[9]
Variable rate (percent)				6.50%	[3],[16]	6.50%	[3],[16]	6.75%	[5],[7],[9]	6.75%	[5],[7],[9]
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 2
Schedule of Investments [Line Items]
Principal amount				$ 20,758	[1],[2],[16]			$ 2,688	[4],[8],[9]
Floor rate				1%	[2],[3],[16]	1%	[2],[3],[16]	1%	[7],[8],[9]	1%	[7],[8],[9]
Variable rate (percent)				6.50%	[2],[3],[16]	6.50%	[2],[3],[16]	6.75%	[7],[8],[9]	6.75%	[7],[8],[9]
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 3
Schedule of Investments [Line Items]
Principal amount				$ 538	[1],[16]			$ 1,344	[4],[8],[9]
Floor rate				1%	[3],[16]	1%	[3],[16]	1%	[7],[8],[9]	1%	[7],[8],[9]
Variable rate (percent)				6.50%	[3],[16]	6.50%	[3],[16]	6.75%	[7],[8],[9]	6.75%	[7],[8],[9]
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 4
Schedule of Investments [Line Items]
Principal amount	[1],[16],[17]			$ 538
Floor rate	[3],[16],[17]			1%		1%
Variable rate (percent)	[3],[16],[17]			6.50%		6.50%
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 5
Schedule of Investments [Line Items]
Principal amount	[1],[16],[17]			$ 806
Floor rate	[3],[16],[17]			1%		1%
Variable rate (percent)	[3],[16],[17]			6.50%		6.50%
Investment, Identifier [Axis]: Cirque Du Soleil Holding USA Newco, Inc., Financial Services
Schedule of Investments [Line Items]
Principal amount	[4],[5],[6]							$ 6,387
Floor rate	[5],[6],[7]							0.50%		0.50%
Variable rate (percent)	[5],[6],[7]							4.25%		4.25%
Investment, Identifier [Axis]: Cirque Du Soleil Holding USA Newco, Inc., Media & Entertainment
Schedule of Investments [Line Items]
Principal amount	[1],[2],[12]			$ 8,324
Floor rate	[2],[3],[12]			0.50%		0.50%
Variable rate (percent)	[2],[3],[12]			3.75%		3.75%
Investment, Identifier [Axis]: Citizen Energy Operating, LLC, Energy—Upstream
Schedule of Investments [Line Items]
Principal amount				$ 32,000	[1],[2],[16]			$ 35,000	[4],[5],[9]
Floor rate				1%	[2],[3],[16]	1%	[2],[3],[16]	1%	[5],[7],[9]	1%	[5],[7],[9]
Variable rate (percent)				7.50%	[2],[3],[16]	7.50%	[2],[3],[16]	7.65%	[5],[7],[9]	7.65%	[5],[7],[9]
Investment, Identifier [Axis]: Clear Channel Outdoor Holdings, Inc., Media & Entertainment
Schedule of Investments [Line Items]
Principal amount				$ 12,500	[1],[2],[12]			$ 20,000	[4],[5],[11]
Variable rate (percent)				4%	[2],[3],[12]	4%	[2],[3],[12]	3.50%	[5],[7],[11]	3.50%	[5],[7],[11]
Investment, Identifier [Axis]: Clydesdale Acquisition Holdings Inc., Financials Services
Schedule of Investments [Line Items]
Principal amount	[4],[5]							$ 19,949
Floor rate	[5],[7]							0.50%		0.50%
Variable rate (percent)	[5],[7]							4.18%		4.18%
Investment, Identifier [Axis]: Cop Village Green Acquisitions, Inc., Real Estate Management & Development 1
Schedule of Investments [Line Items]
Principal amount	[1],[16]			$ 12,739
Floor rate	[3],[16]			1%		1%
Variable rate (percent)	[3],[16]			4.75%		4.75%
Investment, Identifier [Axis]: Cop Village Green Acquisitions, Inc., Real Estate Management & Development 2
Schedule of Investments [Line Items]
Principal amount	[1],[16],[17]			$ 9,762
Floor rate	[3],[16],[17]			1%		1%
Variable rate (percent)	[3],[16],[17]			4.75%		4.75%
Investment, Identifier [Axis]: Cox Oil Offshore, LLC, Volumetric Production Payments, Energy—Upstream
Schedule of Investments [Line Items]
Principal amount	[4],[9],[25],[26]							$ 100,000
Investment, Identifier [Axis]: Crown SubSea Communication Holding, Inc., Capital Goods
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 5,985
Floor rate	[2],[3]			0.80%		0.80%
Variable rate (percent)	[2],[3]			4%		4%
Investment, Identifier [Axis]: Crown SubSea Communications Holding, Inc., Capital Goods 1
Schedule of Investments [Line Items]
Principal amount	[4],[5],[6]							$ 4,500
Floor rate	[5],[6],[7]							0.80%		0.80%
Variable rate (percent)	[5],[6],[7]							5%		5%
Investment, Identifier [Axis]: Crown SubSea Communications Holding, Inc., Capital Goods 2
Schedule of Investments [Line Items]
Principal amount	[4],[5],[6]							$ 5,430
Floor rate	[5],[6],[7]							0.80%		0.80%
Variable rate (percent)	[5],[6],[7]							5.25%		5.25%
Investment, Identifier [Axis]: Delivery Hero Finco LLC, Consumer Services
Schedule of Investments [Line Items]
Principal amount	[1],[12]			$ 24,875
Floor rate	[3],[12]			0.50%		0.50%
Variable rate (percent)	[3],[12]			5%		5%
Investment, Identifier [Axis]: Digicel International Finance Ltd., Telecommunication Services
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 20,154
Floor rate	[2],[3]			0.50%		0.50%
Variable rate (percent)	[2],[3]			5.15%		5.15%
Investment, Identifier [Axis]: Electrical Components International, Inc., Capital Goods 1
Schedule of Investments [Line Items]
Principal amount	[1],[2],[16]			$ 47,282
Floor rate	[2],[3],[16]			2%		2%
Variable rate (percent)	[2],[3],[16]			6.50%		6.50%
Investment, Identifier [Axis]: Electrical Components International, Inc., Capital Goods 2
Schedule of Investments [Line Items]
Principal amount	[1],[16],[17]			$ 2,600
Floor rate	[3],[16],[17]			2%		2%
Variable rate (percent)	[3],[16],[17]			6.50%		6.50%
Investment, Identifier [Axis]: Engineered Machinery Holdings, Inc., Capital Goods
Schedule of Investments [Line Items]
Principal amount				$ 24,733	[1],[2]			$ 19,924	[4],[5]
Floor rate				0.80%	[2],[3]	0.80%	[2],[3]	0.80%	[5],[7]	0.80%	[5],[7]
Variable rate (percent)				3.75%	[2],[3]	3.75%	[2],[3]	3.50%	[5],[7]	3.50%	[5],[7]
Investment, Identifier [Axis]: FR XIII PAA Holdings HoldCo, LLC, Energy—Midstream
Schedule of Investments [Line Items]
Principal amount	[4],[5],[9]							$ 17,047
Floor rate	[5],[7],[9]							0.50%		0.50%
Variable rate (percent)	[5],[7],[9]							7.50%		7.50%
Investment, Identifier [Axis]: First Brands Group, LLC, Automobiles & Components
Schedule of Investments [Line Items]
Principal amount				$ 24,713	[1],[2]			$ 19,905	[4],[5]
Floor rate				1%	[2],[3]	1%	[2],[3]	1%	[5],[7]	1%	[5],[7]
Variable rate (percent)				5%	[2],[3]	5%	[2],[3]	5%	[5],[7]	5%	[5],[7]
Investment, Identifier [Axis]: Full House Resorts, Inc., Consumer Services
Schedule of Investments [Line Items]
Principal amount				$ 25,742	[1],[2]			$ 20,742	[4],[5]
Investment, Identifier [Axis]: GasLog Ltd., Energy—Midstream
Schedule of Investments [Line Items]
Principal amount				$ 7,523	[1],[12],[16]			13,951	[4],[9],[11]
Variable rate (percent)	[3],[12],[16]			7.80%		7.80%
Investment, Identifier [Axis]: Gen4 Dental Partners Opco, LLC, Health Care Equipment & Services 1
Schedule of Investments [Line Items]
Principal amount	[1],[2],[16]			$ 23,513
Floor rate	[2],[3],[16]			1%		1%
Variable rate (percent)	[2],[3],[16]			5.50%		5.50%
Investment, Identifier [Axis]: Gen4 Dental Partners Opco, LLC, Health Care Equipment & Services 2
Schedule of Investments [Line Items]
Principal amount	[1],[16],[17]			$ 9,428
Floor rate	[3],[16],[17]			1%		1%
Variable rate (percent)	[3],[16],[17]			5.50%		5.50%
Investment, Identifier [Axis]: Gold Rush Amusements, Inc., Consumer Services
Schedule of Investments [Line Items]
Principal amount				$ 30,442	[1],[2],[16]			$ 30,673	[4],[5],[9]
Floor rate				2%	[2],[3],[16]	2%	[2],[3],[16]	2%	[5],[7],[9]	2%	[5],[7],[9]
Variable rate (percent)				7.50%	[2],[3],[16]	7.50%	[2],[3],[16]	7.50%	[5],[7],[9]	7.50%	[5],[7],[9]
Investment, Identifier [Axis]: Goodnight Water Solutions, LLC, Energy—Midstream
Schedule of Investments [Line Items]
Principal amount	[4],[5],[9]							$ 14,516
Floor rate	[5],[7],[9]							0.50%		0.50%
Variable rate (percent)	[5],[7],[9]							7%		7%
Investment, Identifier [Axis]: Guardian US Holdco, LLC, Financial Services
Schedule of Investments [Line Items]
Principal amount	[4],[5]							$ 19,925
Floor rate	[5],[7]							0.50%		0.50%
Variable rate (percent)	[5],[7]							4%		4%
Investment, Identifier [Axis]: Guardian US Holdco, LLC, Software & Services
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 24,738
Floor rate	[2],[3]			0.50%		0.50%
Variable rate (percent)	[2],[3]			3.50%		3.50%
Investment, Identifier [Axis]: Guitar Center, Inc., Consumer Discretionary Distribution & Retail
Schedule of Investments [Line Items]
Principal amount				$ 23,568	[1],[2]			$ 20,000	[4],[5]
Investment, Identifier [Axis]: Knowlton Development Corporation Inc., Household & Personal Products
Schedule of Investments [Line Items]
Principal amount	[4],[5]							$ 21,000
Variable rate (percent)	[5],[7]							5%		5%
Investment, Identifier [Axis]: Knowlton Development Corporation, Inc., Household & Personal Products
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 25,935
Variable rate (percent)	[2],[3]			4.50%		4.50%
Investment, Identifier [Axis]: LABL, Inc., Commercial & Professional Services
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 24,674
Floor rate	[2],[3]			0.50%		0.50%
Variable rate (percent)	[2],[3]			5%		5%
Investment, Identifier [Axis]: LABL, Inc., Commerical & Professional Services
Schedule of Investments [Line Items]
Principal amount	[4],[5]							$ 19,864
Floor rate	[5],[7]							0.50%		0.50%
Variable rate (percent)	[5],[7]							5%		5%
Investment, Identifier [Axis]: Learning Care Group No. 2 Inc., Consumer Services
Schedule of Investments [Line Items]
Principal amount	[4],[5]							$ 19,950
Floor rate	[5],[7]							0.50%		0.50%
Variable rate (percent)	[5],[7]							4.75%		4.75%
Investment, Identifier [Axis]: Learning Care Group No. 2, Inc., Consumer Services
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 21,786
Floor rate	[2],[3]			0.50%		0.50%
Variable rate (percent)	[2],[3]			4%		4%
Investment, Identifier [Axis]: Level 3 Financing, Inc., Telecommunication Services
Schedule of Investments [Line Items]
Principal amount	[1],[2],[12]			$ 19,291
Floor rate	[2],[3],[12]			2%		2%
Variable rate (percent)	[2],[3],[12]			6.56%		6.56%
Investment, Identifier [Axis]: M2S Group Intermediate Holdings, Inc., Materials
Schedule of Investments [Line Items]
Principal amount	[1]			$ 30,000
Floor rate	[3]			0.50%		0.50%
Variable rate (percent)	[3]			4.75%		4.75%
Investment, Identifier [Axis]: MBS Services Holdings, LLC, Commercial & Professional Services
Schedule of Investments [Line Items]
Principal amount	[1],[16]			$ 30,833
Investment, Identifier [Axis]: Mavis Tire Express Services TopCo, L.P., Consumer Discretionary Distribution & Retail
Schedule of Investments [Line Items]
Principal amount				$ 17,263	[1],[2]			$ 19,893	[4],[5]
Floor rate				0.80%	[2],[3]	0.80%	[2],[3]	0.80%	[5],[7]	0.80%	[5],[7]
Variable rate (percent)				3.50%	[2],[3]	3.50%	[2],[3]	4%	[5],[7]	4%	[5],[7]
Investment, Identifier [Axis]: MedImpact Healthcare Systems, Inc., Health Care Equipment & Services
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 24,684
Variable rate (percent)	[2],[3]			7.25%		7.25%
Investment, Identifier [Axis]: NGL Energy Partners, LP, Preferred Equity, Energy—Midstream
Schedule of Investments [Line Items]
Variable rate (percent)				7%		7%
Investment, Identifier [Axis]: Navios Logistics Finance, Inc., Transportation
Schedule of Investments [Line Items]
Principal amount	[4],[5],[11]							$ 20,000
Investment, Identifier [Axis]: Nephron Pharmaceuticals Corp., Pharmaceuticals, Biotechnology & Life Sciences
Schedule of Investments [Line Items]
Principal amount	[4],[9]							$ 20,000
Floor rate	[7],[9]							1.50%		1.50%
Variable rate (percent)	[7],[9]							9%		9%
Investment, Identifier [Axis]: Nephron Pharmaceuticals Corp., Pharmaceuticals, Biotechnology & Life Sciences 1
Schedule of Investments [Line Items]
Principal amount	[1],[16]			$ 19,745
Floor rate	[3],[16]			1.50%		1.50%
Variable rate (percent)	[3],[16]			11%		11%
Investment, Identifier [Axis]: Nephron Pharmaceuticals Corp., Pharmaceuticals, Biotechnology & Life Sciences 2
Schedule of Investments [Line Items]
Principal amount	[1],[16]			$ 1,161
Investment, Identifier [Axis]: Onbe, Inc., Financial Services
Schedule of Investments [Line Items]
Principal amount	[1],[2],[16]			$ 38,000
Floor rate	[2],[3],[16]			1%		1%
Variable rate (percent)	[2],[3],[16]			5.50%		5.50%
Investment, Identifier [Axis]: Osaic Holdings, Inc., Financial Services
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 4,975
Variable rate (percent)	[2],[3]			4%		4%
Investment, Identifier [Axis]: PODS, LLC, Transportation
Schedule of Investments [Line Items]
Principal amount	[1],[2],[24]			$ 19,897
Floor rate	[2],[3],[24]			0.80%		0.80%
Investment, Identifier [Axis]: Peloton Interactive, Inc., Consumer Durables & Apparel
Schedule of Investments [Line Items]
Principal amount	[1],[2],[12]			$ 24,938
Investment, Identifier [Axis]: Permian Production Holdings, LLC, Energy—Upstream
Schedule of Investments [Line Items]
Principal amount				2,882	[1],[16],[20]			$ 4,864	[4],[9],[27]
Investment, Identifier [Axis]: Phoenix Guarantor Inc., Financial Services
Schedule of Investments [Line Items]
Principal amount	[4],[5],[6]							$ 19,923
Variable rate (percent)	[5],[6],[7]							3.50%		3.50%
Investment, Identifier [Axis]: Pioneer Midco, LLC, Consumer Services
Schedule of Investments [Line Items]
Principal amount	[1],[2],[16]			35,167
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Energy—Power 1
Schedule of Investments [Line Items]
Principal amount				14,281	[1],[16],[22],[23]			$ 13,297	[4],[9],[13],[14]
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Energy—Power 2
Schedule of Investments [Line Items]
Principal amount				4,428	[1],[16],[22],[23]			4,015	[4],[9],[13],[14]
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Energy—Power 3
Schedule of Investments [Line Items]
Principal amount	[1],[16],[17]			2,344
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Letter of Credit, Energy—Power
Schedule of Investments [Line Items]
Principal amount	[4],[8],[9]							2,709
Investment, Identifier [Axis]: Pretium PKG Holdings, Inc., Materials
Schedule of Investments [Line Items]
Principal amount				$ 32,788	[1],[2]			$ 30,118	[4],[5]
Floor rate				1%	[2],[3]	1%	[2],[3]	1%	[5],[7]	1%	[5],[7]
Variable rate (percent)				2.50%	[2],[3]	2.50%	[2],[3]	5%	[5],[7]	5%	[5],[7]
Investment, Identifier [Axis]: Pro Mach Group, Inc., Capital Goods
Schedule of Investments [Line Items]
Principal amount				$ 17,380	[1],[2]			$ 19,924	[4],[5]
Floor rate				1%	[2],[3]	1%	[2],[3]	1%	[5],[7]	1%	[5],[7]
Variable rate (percent)				3.50%	[2],[3]	3.50%	[2],[3]	4%	[5],[7]	4%	[5],[7]
Investment, Identifier [Axis]: Proampac PG Borrower LLC, Materials
Schedule of Investments [Line Items]
Principal amount				$ 22,828	[1],[2]			$ 20,000	[4],[5]
Floor rate				0.80%	[2],[3]	0.80%	[2],[3]	0.80%	[5],[7]	0.80%	[5],[7]
Variable rate (percent)				4%	[2],[3]	4%	[2],[3]	4.50%	[5],[7]	4.50%	[5],[7]
Investment, Identifier [Axis]: RPC TopCo Inc., Consumer Durables & Apparel 1
Schedule of Investments [Line Items]
Principal amount	[1],[16]			$ 21,970
Floor rate	[3],[16]			1%		1%
Investment, Identifier [Axis]: RPC TopCo Inc., Consumer Durables & Apparel 2
Schedule of Investments [Line Items]
Principal amount	[1],[16],[17]			$ 3,030
Floor rate	[3],[16],[17]			1%		1%
Investment, Identifier [Axis]: RealTruck Group, Inc, Automobiles & Components
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 24,756
Floor rate	[2],[3]			0.80%		0.80%
Variable rate (percent)	[2],[3]			3.50%		3.50%
Investment, Identifier [Axis]: Realtruck Group, Inc., Automobiles & Components
Schedule of Investments [Line Items]
Principal amount	[4],[5],[6]							$ 19,956
Floor rate	[5],[6],[7]							0.80%		0.80%
Variable rate (percent)	[5],[6],[7]							3.50%		3.50%
Investment, Identifier [Axis]: Revlon Intermediate Holdings IV LLC, Household & Personal Products
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 15,000
Floor rate	[2],[3]			1%		1%
Investment, Identifier [Axis]: Ryan, LLC, Commercial & Professional Services 1
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 9,795
Floor rate	[2],[3]			0.50%		0.50%
Variable rate (percent)	[2],[3]			3.50%		3.50%
Investment, Identifier [Axis]: Ryan, LLC, Commercial & Professional Services 2
Schedule of Investments [Line Items]
Principal amount	[1],[17]			$ 1,036
Floor rate	[3],[17]			0.50%		0.50%
Variable rate (percent)	[3],[17]			3.50%		3.50%
Investment, Identifier [Axis]: Ryan, LLC, Commerical & Professional Services 1
Schedule of Investments [Line Items]
Principal amount	[4],[5],[6]							$ 9,844
Floor rate	[5],[6],[7]							0.50%		0.50%
Variable rate (percent)	[5],[6],[7]							4.50%		4.50%
Investment, Identifier [Axis]: Ryan, LLC, Commerical & Professional Services 2
Schedule of Investments [Line Items]
Principal amount	[4],[6],[8]							$ 1,036
Floor rate	[6],[7],[8]							0.50%		0.50%
Variable rate (percent)	[6],[7],[8]							4.50%		4.50%
Investment, Identifier [Axis]: SRS Distribution Inc., Capital Goods
Schedule of Investments [Line Items]
Principal amount	[4],[5],[6]							$ 19,924
Floor rate	[5],[6],[7]							0.50%		0.50%
Variable rate (percent)	[5],[6],[7]							3.50%		3.50%
Investment, Identifier [Axis]: ST EIP Holdings Inc., Energy—Midstream
Schedule of Investments [Line Items]
Principal amount	[4],[5],[9]							$ 10,365
Investment, Identifier [Axis]: ST EIP Holdings, Inc., Energy—Midstream
Schedule of Investments [Line Items]
Principal amount	[1],[2],[16]			$ 10,199
Investment, Identifier [Axis]: SupplyOne, Inc., Materials
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 8,955
Floor rate	[2],[3]
Variable rate (percent)	[2],[3]			4.25%		4.25%
Investment, Identifier [Axis]: Sustainable Infrastructure Investments, LLC, Energy—Power
Schedule of Investments [Line Items]
Principal amount				$ 60,603	[1],[12],[16],[28]			60,603	[4],[9],[11],[15]
Investment, Identifier [Axis]: TKC Holdings, Inc., Consumer Staples Distribution & Retail
Schedule of Investments [Line Items]
Principal amount				$ 24,309	[1],[2]			$ 19,650	[4],[5]
Floor rate				1%	[2],[3]	1%	[2],[3]	1%	[5],[7]	1%	[5],[7]
Variable rate (percent)				5.50%	[2],[3]	5.50%	[2],[3]	5.50%	[5],[7]	5.50%	[5],[7]
Investment, Identifier [Axis]: Tenrgys, LLC, Energy—Upstream
Schedule of Investments [Line Items]
Principal amount				$ 20,537	[1],[2],[16]			$ 20,537	[4],[5],[9]
Floor rate				1%	[2],[3],[16]	1%	[2],[3],[16]	1%	[5],[7],[9]	1%	[5],[7],[9]
Variable rate (percent)				7.50%	[2],[3],[16]	7.50%	[2],[3],[16]	7.50%	[5],[7],[9]	7.50%	[5],[7],[9]
Investment, Identifier [Axis]: TruGreen, LP, Commercial & Professional Services
Schedule of Investments [Line Items]
Principal amount				$ 24,718	[1],[2]			$ 19,910	[4],[5]
Floor rate				0.80%	[2],[3]	0.80%	[2],[3]	0.80%	[5],[7]	0.80%	[5],[7]
Variable rate (percent)				4%	[2],[3]	4%	[2],[3]	4%	[5],[7]	4%	[5],[7]
Investment, Identifier [Axis]: U.S. Treasury Bills, U.S. Treasury Bills
Schedule of Investments [Line Items]
Principal amount	[29]							$ 21,000
Investment, Identifier [Axis]: United Natural Foods, Inc., Consumer Staples Distribution & Retail
Schedule of Investments [Line Items]
Principal amount	[1],[2],[12]			$ 20,948
Variable rate (percent)	[2],[3],[12]			4.75%		4.75%
Investment, Identifier [Axis]: Universal Entertainment Corp., Consumer Durables & Apparel
Schedule of Investments [Line Items]
Principal amount	[1],[12]			$ 9,625
Investment, Identifier [Axis]: Upstream Newco, Inc., Health Care Equipment & Services
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 6,971
Variable rate (percent)	[2],[3]			4.25%		4.25%
Investment, Identifier [Axis]: WMK, LLC, Consumer Discretionary Distribution & Retail 1
Schedule of Investments [Line Items]
Principal amount	[1],[2],[16]			$ 31,050
Floor rate	[2],[3],[16]			3%		3%
Variable rate (percent)	[2],[3],[16]			6.50%		6.50%
Investment, Identifier [Axis]: WMK, LLC, Consumer Discretionary Distribution & Retail 2
Schedule of Investments [Line Items]
Principal amount	[1],[16],[17]			$ 3,583
Floor rate	[3],[16],[17]			3%		3%
Variable rate (percent)	[3],[16],[17]			6.50%		6.50%
Investment, Identifier [Axis]: Warren Resources, Inc., Energy—Upstream
Schedule of Investments [Line Items]
Principal amount				$ 31,163	[1],[16]			$ 23,823	[4],[5],[9],[15]
Floor rate	[5],[7],[9],[15]							1%		1%
Variable rate (percent)	[5],[7],[9],[15]							9%		9%
Investment, Identifier [Axis]: Wattbridge Inc., Energy—Power
Schedule of Investments [Line Items]
Principal amount	[4],[5],[9]							$ 42,938
Floor rate	[5],[7],[9]							1.80%		1.80%
Variable rate (percent)	[5],[7],[9]							9.85%		9.85%
Investment, Identifier [Axis]: Weber-Stephen Products LLC, Consumer Durables & Apparel
Schedule of Investments [Line Items]
Principal amount	[1],[2]			$ 26,119
Floor rate	[2],[3]			0.80%		0.80%
Variable rate (percent)	[2],[3]			3.25%		3.25%
Investment, Identifier [Axis]: WildBrain Ltd., Media & Entertainment 1
Schedule of Investments [Line Items]
Principal amount	[1],[12],[16]			$ 1,771
Floor rate	[3],[12],[16]			1%		1%
Variable rate (percent)	[3],[12],[16]			6%		6%
Investment, Identifier [Axis]: WildBrain Ltd., Media & Entertainment 2
Schedule of Investments [Line Items]
Principal amount	[1],[2],[12],[16]			$ 31,547
Floor rate	[2],[3],[12],[16]			1%		1%
Variable rate (percent)	[2],[3],[12],[16]			6%		6%
Investment, Identifier [Axis]: WildBrain Ltd., Media & Entertainment 3
Schedule of Investments [Line Items]
Principal amount	[1],[12],[16],[17]			$ 1,602
Floor rate	[3],[12],[16],[17]			1%		1%
Variable rate (percent)	[3],[12],[16],[17]			6%		6%
Sustainable Infrastructure Investments, LLC
Schedule of Investments [Line Items]
Aggregate sustainable infrastructure investments		$ 67,629	$ 5,430
Contributed capital to committed capital ratio		87.50%	87.50%
Percentage of voting control		50%	50%
Amount funded to joint venture				$ 43,150
Principal amount				104,101				$ 170,083
Variable rate (percent)								5.33%		5.33%
Debt				84,121				$ 145,483
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: Blue Heron Intermediate Holdco I, LLC, Midstream
Schedule of Investments [Line Items]
Principal amount								$ 30,661
Variable rate (percent)								1.88%		1.88%
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: Copper Mountain Solar 3, LLC, Renewables
Schedule of Investments [Line Items]
Principal amount								$ 16,104
Variable rate (percent)								1.88%		1.88%
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: FLNG Liquefaction 2, LLC, Midstream
Schedule of Investments [Line Items]
Principal amount				$ 25,052				$ 26,567
Variable rate (percent)				1.50%		1.50%		1.50%		1.50%
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: Largest Portfolio Company Investment
Schedule of Investments [Line Items]
Principal amount				$ 55,422				$ 57,227
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: NES Hercules Class B Member, LLC, Renewables
Schedule of Investments [Line Items]
Principal amount				$ 23,627				$ 24,176
Variable rate (percent)				1.78%		1.78%		1.63%		1.63%
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: ST EIP Holdco LLC, Midstream
Schedule of Investments [Line Items]
Principal amount				$ 55,422				$ 57,227
Variable rate (percent)				2.50%		2.50%		2.50%		2.50%
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: Seine Funding, LLC
Schedule of Investments [Line Items]
Principal amount		$ 634,103
Floor rate		0%
Variable rate (percent)		1.20%
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: Top of the World Wind Energy LLC, Renewables
Schedule of Investments [Line Items]
Principal amount								$ 15,348
Variable rate (percent)								2.13%		2.13%
Sustainable Infrastructure Investments, LLC | Imperial
Schedule of Investments [Line Items]
Contributed capital to committed capital ratio		12.50%	12.50%
Percentage of voting control		50%	50%
Sustainable Infrastructure Investments, LLC | FS Energy And Power Fund
Schedule of Investments [Line Items]
Sustainable infrastructure investments, LLC entitled to a fee percentage		0.25%	0.25%
Sustainable Infrastructure Investments, LLC | FS Specialty Lending Fund And Imperial Sustainable Infrustructure Investments, LLC
Schedule of Investments [Line Items]
Amount funded to joint venture				$ 49,313
Senior Secured Loan
Schedule of Investments [Line Items]
Number of senior secured loan investments | investment				13		13		5		5
Unfunded commitment with amortized cost				$ 38,263				$ 11,232
Partnership Interest | Sustainable Infrastructure Investments, LLC
Schedule of Investments [Line Items]
Unfunded commitment with amortized cost				$ 18,989		$ 858		$ 18,989		$ 858
Non-Controlled/Affiliated
Schedule of Investments [Line Items]
Number of investments in portfolio companies | company				6		6		4		4
Controlled/affiliated
Schedule of Investments [Line Items]
Number of investments in portfolio companies | company				1		1		3		3
[1]Denominated in U.S. dollars, unless otherwise noted.[2]Security or portion thereof held within FSSL Finance BB AssetCo LLC, a wholly-owned subsidiary of the Company, and is pledged as collateral supporting the obligations outstanding under the repurchase facility with Barclays Bank PLC (see Note 9).[3]Certain variable rate securities in the Company’s portfolio bear interest at a rate determined by a publicly disclosed base rate plus a basis point spread. As of September 30, 2024, the one-month and three-month Secured Overnight Financing Rate, or SOFR, or S, was 4.85% and 4.59%, respectively, and the Overnight Bank Funding Rate, or OBFR, was 4.83%. SOFR based contracts may include a credit spread adjustment that is charged in addition to the base rate and basis point spread. PIK means paid-in-kind. PIK income accruals may be adjusted based on the fair value of the underlying investment. Variable rate securities with no floor rate use the respective benchmark rate in all cases.[4]Denominated in U.S. dollars, unless otherwise noted.[5]Security or portion thereof held within FSSL Finance BB AssetCo LLC, a wholly-owned subsidiary of the Company, and is pledged as collateral supporting the obligations outstanding under the repurchase facility with Barclays Bank PLC (see Note 9).[6]Security or portion thereof unsettled as of December 31, 2023.[7]Certain variable rate securities in the Company’s portfolio bear interest at a rate determined by a publicly disclosed base rate plus a basis point spread. As of December 31, 2023, the one-month and three-month Secured Overnight Financing Rate, or SOFR, or S, was 5.35% and 5.33%, respectively, and the Overnight Bank Funding Rate, or OBFR, was 5.32%. SOFR based contracts may include a credit spread adjustment that is charged in addition to the base rate and basis point spread. PIK means paid-in-kind. PIK income accruals may be adjusted based on the fair value of the underlying investment. Variable rate securities with no floor rate use the respective benchmark rate in all cases. Portfolio Company Fair Value at December 31, 2022 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at December 31, 2023 Interest Income (3) PIK Income (3) Dividend Income (3) Senior Secured Loans—First Lien Allied Downhole Technologies, LLC $ 8,436 $ 138 $ (8,574) $ — $ — $ — $ 256 $ 139 $ — Allied Wireline Services, LLC 63,888 6,389 — — (48,077) 22,200 — 2,910 — Warren Resources, Inc. 23,584 239 — — — 23,823 3,464 179 — Sustainable Infrastructure Investments, LLC Sustainable Infrastructure Investments, LLC 51,098 — (11,364) — (307) 39,427 — — 8,324 Equity/Other Allied Wireline Services, LLC, Common Equity 10,463 — — — (10,463) — — — — Allied Wireline Services, LLC, Warrants — — — — — — — — — Warren Resources, Inc., Common Equity 36,982 — — — (21,416) 15,566 — — — $ 194,451 $ 6,766 $ (19,938) $ — $ (80,263) $ 101,016 $ 3,720 $ 3,228 $ 8,324 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest, PIK and dividend income presented for the year ended December 31, 2023. Portfolio Company Fair Value at December 31, 2023 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at September 30, 2024 Interest Income (3) PIK Income (3) Senior Secured Loans—First Lien Permian Production Holdings, LLC $ 4,816 $ 161 $ (2,045) $ 148 $ (234) $ 2,846 $ 378 $ 63 Asset Based Finance Bridge Street CLO IV Ltd., Subordinated Notes — 23,711 (222) — (1,909) 21,580 1,776 — Bridge Street Warehouse CLO IV Ltd. — 22,729 (22,729) — — — — 729 Bridge Street Warehouse CLO V Ltd. — 5,036 — — — 5,036 — 36 Equity/Other GWP Midstream Holdco, LLC, Common Equity 1,661 — — — 717 2,378 — — Harvest Oil & Gas Corp., Common Equity 271 — — — 94 365 — — Permian Production Holdings, LLC, Common Equity 748 — — — (748) — — — Telpico, LLC, Common Equity — — — — — — — — $ 7,496 $ 51,637 $ (24,996) $ 148 $ (2,080) $ 32,205 $ 2,154 $ 828 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest and PIK income presented for the nine months ended September 30, 2024. Portfolio Company Fair Value at December 31, 2022 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at December 31, 2023 Interest Income (3) PIK Income (3) Senior Secured Loans—First Lien Permian Production Holdings, LLC $ 4,767 $ 231 $ — $ — $ (182) $ 4,816 $ 675 $ 97 Equity/Other GWP Midstream Holdco, LLC, Common Equity 5,044 — (3,112) 3,112 (3,383) 1,661 — — Harvest Oil & Gas Corp., Common Equity 810 — (641) — 102 271 — — Limetree Bay Energy, LLC, Class A Units 1,885 246 — (21,704) 19,573 — — — Permian Production Holdings, LLC, Common Equity 11,420 — — — (10,672) 748 — — Ridgeback Resources Inc., Common Equity 41,851 — (35,240) (11,359) 4,748 — — — Telpico, LLC, Common Equity — — — — — — — — $ 65,777 $ 477 $ (38,993) $ (29,951) $ 10,186 $ 7,496 $ 675 $ 97 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest and PIK income presented for the year ended December 31, 2023. Portfolio Company Fair Value at December 31, 2023 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at September 30, 2024 Interest Income (3) PIK Income (3) Senior Secured Loans—First Lien Allied Wireline Services, LLC $ 22,200 $ — $ (19,282) $ (50,995) $ 48,077 $ — $ — $ — Warren Resources, Inc. 23,823 60 (20,357) (3,526) — — 1,508 60 Sustainable Infrastructure Investments, LLC Sustainable Infrastructure Investments, LLC 39,427 — — — 6,897 46,324 — — Equity/Other Allied Wireline Services, LLC, Common Equity — — — (1,527) 1,527 — — — Allied Wireline Services, LLC, Warrants — — — — — — — — Warren Resources, Inc., Common Equity 15,566 127 (13,578) (7,303) 5,188 — — — $ 101,016 $ 187 $ (53,217) $ (63,351) $ 61,689 $ 46,324 $ 1,508 $ 60 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest and PIK income presented for the nine months ended September 30, 2024.

Investment Portfolio - Schedu_2

Investment Portfolio - Schedule of Investment Portfolio, at Fair Value and Percentage (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2024		Dec. 31, 2023
Schedule of Investments [Line Items]
Investments, at fair value	$ 1,692,052	[1],[2]	$ 1,523,196	[3],[4]
All Industries | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	100%		100%
Consumer Services
Schedule of Investments [Line Items]
Investments, at fair value	$ 236,008		$ 156,089
Consumer Services | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	14%		10%
Energy—Upstream
Schedule of Investments [Line Items]
Investments, at fair value	$ 185,965		$ 309,456
Energy—Upstream | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	11%		20%
Capital Goods
Schedule of Investments [Line Items]
Investments, at fair value	$ 170,764		$ 116,454
Capital Goods | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	10%		8%
Health Care Equipment & Services
Schedule of Investments [Line Items]
Investments, at fair value	$ 131,827		$ 73,105
Health Care Equipment & Services | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	8%		5%
Commercial & Professional Services
Schedule of Investments [Line Items]
Investments, at fair value	$ 125,957		$ 62,036
Commercial & Professional Services | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	7%		4%
Materials
Schedule of Investments [Line Items]
Investments, at fair value	$ 94,211		$ 49,653
Materials | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	6%		3%
Media & Entertainment
Schedule of Investments [Line Items]
Investments, at fair value	$ 89,053		$ 19,829
Media & Entertainment | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	5%		1%
Energy—Midstream
Schedule of Investments [Line Items]
Investments, at fair value	$ 84,694		$ 303,175
Energy—Midstream | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	5%		20%
Consumer Discretionary Distribution & Retail
Schedule of Investments [Line Items]
Investments, at fair value	$ 84,352		$ 37,428
Consumer Discretionary Distribution & Retail | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	5%		3%
Consumer Durables & Apparel
Schedule of Investments [Line Items]
Investments, at fair value	$ 81,039		$ 0
Consumer Durables & Apparel | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	5%		0%
Financial Services
Schedule of Investments [Line Items]
Investments, at fair value	$ 77,585		$ 83,197
Financial Services | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	5%		6%
Automobiles & Components
Schedule of Investments [Line Items]
Investments, at fair value	$ 48,891		$ 39,521
Automobiles & Components | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	3%		3%
Consumer Staples Distribution & Retail
Schedule of Investments [Line Items]
Investments, at fair value	$ 45,346		$ 18,830
Consumer Staples Distribution & Retail | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	3%		1%
Household & Personal Products
Schedule of Investments [Line Items]
Investments, at fair value	$ 40,819		$ 20,858
Household & Personal Products | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2%		1%
Telecommunication Services
Schedule of Investments [Line Items]
Investments, at fair value	$ 39,710		$ 0
Telecommunication Services | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2%		0%
Transportation
Schedule of Investments [Line Items]
Investments, at fair value	$ 31,042		$ 30,157
Transportation | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	2%		2%
Software & Services
Schedule of Investments [Line Items]
Investments, at fair value	$ 24,622		$ 0
Software & Services | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1%		0%
Pharmaceuticals, Biotechnology & Life Sciences
Schedule of Investments [Line Items]
Investments, at fair value	$ 20,251		$ 19,300
Pharmaceuticals, Biotechnology & Life Sciences | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1%		1%
Insurance
Schedule of Investments [Line Items]
Investments, at fair value	$ 18,702		$ 20,251
Insurance | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1%		1%
Real Estate Management & Development
Schedule of Investments [Line Items]
Investments, at fair value	$ 12,495		$ 0
Real Estate Management & Development | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	1%		0%
Energy—Power
Schedule of Investments [Line Items]
Investments, at fair value	$ 2,395		$ 69,696
Energy—Power | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0%		5%
Energy—Service & Equipment
Schedule of Investments [Line Items]
Investments, at fair value	$ 0		$ 33,734
Energy—Service & Equipment | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0%		2%
U.S. Treasury
Schedule of Investments [Line Items]
Investments, at fair value	$ 0		$ 21,000
U.S. Treasury | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	0%		1%
Sustainable Infrastructure Investments, LLC
Schedule of Investments [Line Items]
Investments, at fair value	$ 46,324		$ 39,427
Sustainable Infrastructure Investments, LLC | Percentage of Portfolio | Industry Concentration Risk
Schedule of Investments [Line Items]
Percentage of Portfolio	3%		3%
[1]Security may be an obligation of one or more entities affiliated with the named company.[2]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.[3]Security may be an obligation of one or more entities affiliated with the named company.[4]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.

Investment Portfolio - Individu

Investment Portfolio - Individual Loans in SIIJV’s portfolio (Details) $ in Thousands		Sep. 30, 2024 USD ($) portfolio_asset		Dec. 31, 2023 USD ($) portfolio_asset		Jan. 02, 2020 USD ($)
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., Capital Goods
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	$ 19,950
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., Capital Goods 1
Schedule of Investments [Line Items]
Principal Amount	[3],[4],[5]			$ 16,522
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., Capital Goods 2
Schedule of Investments [Line Items]
Principal Amount	[3],[5],[6]			3,478
Investment, Identifier [Axis]: AIRRO (Mauritius) Holdings II, Energy—Power
Schedule of Investments [Line Items]
Principal Amount	[3],[7],[8],[9]			22,856
Investment, Identifier [Axis]: APTIM Corp., Commercial & Professional Services
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	27,500
Investment, Identifier [Axis]: Acrisure, LLC, Insurance
Schedule of Investments [Line Items]
Principal Amount		18,849	[1],[2]	20,175	[3],[4]
Investment, Identifier [Axis]: Aimbridge Acquisition Co. Inc., Consumer Services
Schedule of Investments [Line Items]
Principal Amount		26,595	[1],[2]	21,805	[3],[4]
Investment, Identifier [Axis]: Allegiant Travel Co., Transportation
Schedule of Investments [Line Items]
Principal Amount		$ 12,271	[1],[10]	$ 10,601	[3],[9]
Weighted average current interest rate on debt investments		7.30%	[10],[11]	7.30%	[9],[12]
Investment, Identifier [Axis]: Allied Universal Holdco LLC, Consumer Services
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	$ 22,786
Investment, Identifier [Axis]: Allied Universal Holdco LLC, Consumer Services 1
Schedule of Investments [Line Items]
Principal Amount	[3],[4]			$ 9,975
Investment, Identifier [Axis]: Allied Universal Holdco LLC, Consumer Services 2
Schedule of Investments [Line Items]
Principal Amount	[3],[4]			9,929
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Energy—Service & Equipment
Schedule of Investments [Line Items]
Principal Amount	[3],[7],[13],[14],[15]			$ 70,277
Investment, Identifier [Axis]: Allspring Government Money Market Fund - Select Class, Money Market Fund
Schedule of Investments [Line Items]
Weighted average current interest rate on debt investments		4.86%		5.30%
Investment, Identifier [Axis]: American Auto Auction Group, LLC, Capital Goods
Schedule of Investments [Line Items]
Principal Amount		$ 23,799	[1],[2]	$ 9,975	[3],[4]
Investment, Identifier [Axis]: Ansira Partners, Inc., Media & Entertainment 1
Schedule of Investments [Line Items]
Principal Amount	[1],[16]	393
Investment, Identifier [Axis]: Ansira Partners, Inc., Media & Entertainment 2
Schedule of Investments [Line Items]
Principal Amount	[1],[2],[16]	36,323
Investment, Identifier [Axis]: Ansira Partners, Inc., Media & Entertainment 3
Schedule of Investments [Line Items]
Principal Amount	[1],[16],[17]	3,534
Investment, Identifier [Axis]: Aretec Escrow Issuer Inc., Financial Services
Schedule of Investments [Line Items]
Principal Amount	[3],[4]			$ 7,000
Weighted average current interest rate on debt investments	[4],[12]			10%
Investment, Identifier [Axis]: Aretec Escrow Issuer, Inc., Financial Services
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	$ 2,000
Weighted average current interest rate on debt investments	[2],[11]	10%
Investment, Identifier [Axis]: Aretec Group, Inc., Financial Services
Schedule of Investments [Line Items]
Principal Amount		$ 6,800	[1],[2]	$ 9,352	[3],[4],[5]
Investment, Identifier [Axis]: Auris Luxembourg III S.a r.l, Health Care Equipment & Services
Schedule of Investments [Line Items]
Principal Amount		22,802	[1],[2],[10]	20,287	[3],[4],[9]
Investment, Identifier [Axis]: Aveanna Healthcare LLC, Health Care Equipment & Services
Schedule of Investments [Line Items]
Principal Amount		20,748	[1],[2]	15,909	[3],[4]
Investment, Identifier [Axis]: BCPE Empire Holdings, Inc., Consumer Services
Schedule of Investments [Line Items]
Principal Amount		22,288	[1],[2]	24,900	[3],[4]
Investment, Identifier [Axis]: Bridge Street CLO IV Ltd., Subordinated Notes, Financial Services
Schedule of Investments [Line Items]
Principal Amount	[1],[10],[16],[18],[19],[20]	$ 23,700
Weighted average current interest rate on debt investments	[10],[11],[16],[18],[19],[20]	18.20%
Investment, Identifier [Axis]: Bridge Street Warehouse CLO V Ltd., Financial Services
Schedule of Investments [Line Items]
Principal Amount	[1],[10],[16],[20],[21]	$ 5,000
Weighted average current interest rate on debt investments	[10],[11],[16],[20],[21]	2.90%
Investment, Identifier [Axis]: Brock Holdings III, LLC, Capital Goods
Schedule of Investments [Line Items]
Principal Amount	[1],[2],[10]	$ 8,500
Investment, Identifier [Axis]: CCS-CMGC Holdings, Inc., Health Care Equipment & Services
Schedule of Investments [Line Items]
Principal Amount		27,622	[1],[2],[22],[23]	21,465	[3],[4]
Investment, Identifier [Axis]: CPM Holdings, Inc., Capital Goods
Schedule of Investments [Line Items]
Principal Amount		24,813	[1],[2]	20,000	[3],[4]
Investment, Identifier [Axis]: Charlotte Buyer, Inc., Health Care Equipment & Services
Schedule of Investments [Line Items]
Principal Amount		17,755	[1],[2]	19,845	[3],[4],[5]
Investment, Identifier [Axis]: Chinos Intermediate 2, LLC, Consumer Discretionary Distribution & Retail
Schedule of Investments [Line Items]
Principal Amount	[1],[24]	16,000
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 1
Schedule of Investments [Line Items]
Principal Amount		2,145	[1],[16]	20,915	[3],[4],[7]
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 2
Schedule of Investments [Line Items]
Principal Amount		20,758	[1],[2],[16]	2,688	[3],[6],[7]
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 3
Schedule of Investments [Line Items]
Principal Amount		538	[1],[16]	1,344	[3],[6],[7]
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 4
Schedule of Investments [Line Items]
Principal Amount	[1],[16],[17]	538
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 5
Schedule of Investments [Line Items]
Principal Amount	[1],[16],[17]	806
Investment, Identifier [Axis]: Cirque Du Soleil Holding USA Newco, Inc., Financial Services
Schedule of Investments [Line Items]
Principal Amount	[3],[4],[5]			6,387
Investment, Identifier [Axis]: Cirque Du Soleil Holding USA Newco, Inc., Media & Entertainment
Schedule of Investments [Line Items]
Principal Amount	[1],[2],[10]	8,324
Investment, Identifier [Axis]: Citizen Energy Operating, LLC, Energy—Upstream
Schedule of Investments [Line Items]
Principal Amount		32,000	[1],[2],[16]	35,000	[3],[4],[7]
Investment, Identifier [Axis]: Clear Channel Outdoor Holdings, Inc., Media & Entertainment
Schedule of Investments [Line Items]
Principal Amount		12,500	[1],[2],[10]	20,000	[3],[4],[9]
Investment, Identifier [Axis]: Clydesdale Acquisition Holdings Inc., Financials Services
Schedule of Investments [Line Items]
Principal Amount	[3],[4]			19,949
Investment, Identifier [Axis]: Cop Village Green Acquisitions, Inc., Real Estate Management & Development 1
Schedule of Investments [Line Items]
Principal Amount	[1],[16]	12,739
Investment, Identifier [Axis]: Cop Village Green Acquisitions, Inc., Real Estate Management & Development 2
Schedule of Investments [Line Items]
Principal Amount	[1],[16],[17]	9,762
Investment, Identifier [Axis]: Cox Oil Offshore, LLC, Volumetric Production Payments, Energy—Upstream
Schedule of Investments [Line Items]
Principal Amount	[3],[7],[25],[26]			$ 100,000
Weighted average current interest rate on debt investments	[7],[12],[25],[26]			12.90%
Investment, Identifier [Axis]: Crown SubSea Communication Holding, Inc., Capital Goods
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	5,985
Investment, Identifier [Axis]: Crown SubSea Communications Holding, Inc., Capital Goods 1
Schedule of Investments [Line Items]
Principal Amount	[3],[4],[5]			$ 4,500
Investment, Identifier [Axis]: Crown SubSea Communications Holding, Inc., Capital Goods 2
Schedule of Investments [Line Items]
Principal Amount	[3],[4],[5]			5,430
Investment, Identifier [Axis]: Delivery Hero Finco LLC, Consumer Services
Schedule of Investments [Line Items]
Principal Amount	[1],[10]	24,875
Investment, Identifier [Axis]: Digicel International Finance Ltd., Telecommunication Services
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	20,154
Investment, Identifier [Axis]: Electrical Components International, Inc., Capital Goods 1
Schedule of Investments [Line Items]
Principal Amount	[1],[2],[16]	47,282
Investment, Identifier [Axis]: Electrical Components International, Inc., Capital Goods 2
Schedule of Investments [Line Items]
Principal Amount	[1],[16],[17]	2,600
Investment, Identifier [Axis]: Engineered Machinery Holdings, Inc., Capital Goods
Schedule of Investments [Line Items]
Principal Amount		24,733	[1],[2]	19,924	[3],[4]
Investment, Identifier [Axis]: FR XIII PAA Holdings HoldCo, LLC, Energy—Midstream
Schedule of Investments [Line Items]
Principal Amount	[3],[4],[7]			17,047
Investment, Identifier [Axis]: First Brands Group, LLC, Automobiles & Components
Schedule of Investments [Line Items]
Principal Amount		24,713	[1],[2]	19,905	[3],[4]
Investment, Identifier [Axis]: Full House Resorts, Inc., Consumer Services
Schedule of Investments [Line Items]
Principal Amount		$ 25,742	[1],[2]	$ 20,742	[3],[4]
Weighted average current interest rate on debt investments		8.30%	[2],[11]	8.30%	[4],[12]
Investment, Identifier [Axis]: GasLog Ltd., Energy—Midstream
Schedule of Investments [Line Items]
Principal Amount		$ 7,523	[1],[10],[16]	$ 13,951	[3],[7],[9]
Weighted average current interest rate on debt investments	[7],[9],[12]			7.80%
Investment, Identifier [Axis]: Gen4 Dental Partners Opco, LLC, Health Care Equipment & Services 1
Schedule of Investments [Line Items]
Principal Amount	[1],[2],[16]	23,513
Investment, Identifier [Axis]: Gen4 Dental Partners Opco, LLC, Health Care Equipment & Services 2
Schedule of Investments [Line Items]
Principal Amount	[1],[16],[17]	9,428
Investment, Identifier [Axis]: Gold Rush Amusements, Inc., Consumer Services
Schedule of Investments [Line Items]
Principal Amount		30,442	[1],[2],[16]	$ 30,673	[3],[4],[7]
Investment, Identifier [Axis]: Goodnight Water Solutions, LLC, Energy—Midstream
Schedule of Investments [Line Items]
Principal Amount	[3],[4],[7]			14,516
Investment, Identifier [Axis]: Guardian US Holdco, LLC, Financial Services
Schedule of Investments [Line Items]
Principal Amount	[3],[4]			19,925
Investment, Identifier [Axis]: Guardian US Holdco, LLC, Software & Services
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	24,738
Investment, Identifier [Axis]: Guitar Center, Inc., Consumer Discretionary Distribution & Retail
Schedule of Investments [Line Items]
Principal Amount		$ 23,568	[1],[2]	$ 20,000	[3],[4]
Weighted average current interest rate on debt investments		8.50%	[2],[11]	8.50%	[4],[12]
Investment, Identifier [Axis]: Knowlton Development Corporation Inc., Household & Personal Products
Schedule of Investments [Line Items]
Principal Amount	[3],[4]			$ 21,000
Investment, Identifier [Axis]: Knowlton Development Corporation, Inc., Household & Personal Products
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	$ 25,935
Investment, Identifier [Axis]: LABL, Inc., Commercial & Professional Services
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	24,674
Investment, Identifier [Axis]: LABL, Inc., Commerical & Professional Services
Schedule of Investments [Line Items]
Principal Amount	[3],[4]			19,864
Investment, Identifier [Axis]: Learning Care Group No. 2 Inc., Consumer Services
Schedule of Investments [Line Items]
Principal Amount	[3],[4]			19,950
Investment, Identifier [Axis]: Learning Care Group No. 2, Inc., Consumer Services
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	21,786
Investment, Identifier [Axis]: Level 3 Financing, Inc., Telecommunication Services
Schedule of Investments [Line Items]
Principal Amount	[1],[2],[10]	19,291
Investment, Identifier [Axis]: M2S Group Intermediate Holdings, Inc., Materials
Schedule of Investments [Line Items]
Principal Amount	[1]	30,000
Investment, Identifier [Axis]: MBS Services Holdings, LLC, Commercial & Professional Services
Schedule of Investments [Line Items]
Principal Amount	[1],[16]	30,833
Investment, Identifier [Axis]: Mavis Tire Express Services TopCo, L.P., Consumer Discretionary Distribution & Retail
Schedule of Investments [Line Items]
Principal Amount		17,263	[1],[2]	$ 19,893	[3],[4]
Investment, Identifier [Axis]: MedImpact Healthcare Systems, Inc., Health Care Equipment & Services
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	24,684
Investment, Identifier [Axis]: NGL Energy Partners, LP, Preferred Equity, Energy—Midstream
Schedule of Investments [Line Items]
Weighted average current interest rate on debt investments	[4],[7],[9],[12],[13],[14]			14.20%
Investment, Identifier [Axis]: Navios Logistics Finance, Inc., Transportation
Schedule of Investments [Line Items]
Principal Amount	[3],[4],[9]			$ 20,000
Weighted average current interest rate on debt investments	[4],[9],[12]			10.80%
Investment, Identifier [Axis]: Nephron Pharmaceuticals Corp., Pharmaceuticals, Biotechnology & Life Sciences
Schedule of Investments [Line Items]
Principal Amount	[3],[7]			$ 20,000
Investment, Identifier [Axis]: Nephron Pharmaceuticals Corp., Pharmaceuticals, Biotechnology & Life Sciences 1
Schedule of Investments [Line Items]
Principal Amount	[1],[16]	19,745
Investment, Identifier [Axis]: Nephron Pharmaceuticals Corp., Pharmaceuticals, Biotechnology & Life Sciences 2
Schedule of Investments [Line Items]
Principal Amount	[1],[16]	1,161
Investment, Identifier [Axis]: Onbe, Inc., Financial Services
Schedule of Investments [Line Items]
Principal Amount	[1],[2],[16]	38,000
Investment, Identifier [Axis]: Osaic Holdings, Inc., Financial Services
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	4,975
Investment, Identifier [Axis]: PODS, LLC, Transportation
Schedule of Investments [Line Items]
Principal Amount	[1],[2],[24]	$ 19,897
Weighted average current interest rate on debt investments	[2],[11],[24]	3%
Investment, Identifier [Axis]: Peloton Interactive, Inc., Consumer Durables & Apparel
Schedule of Investments [Line Items]
Principal Amount	[1],[2],[10]	$ 24,938
Weighted average current interest rate on debt investments	[2],[10],[11]	6%
Investment, Identifier [Axis]: Permian Production Holdings, LLC, Energy—Upstream
Schedule of Investments [Line Items]
Principal Amount		$ 2,882	[1],[16],[20]	$ 4,864	[3],[7],[27]
Weighted average current interest rate on debt investments		7%	[11],[16],[20]	7%	[7],[12],[27]
Investment, Identifier [Axis]: Phoenix Guarantor Inc., Financial Services
Schedule of Investments [Line Items]
Principal Amount	[3],[4],[5]			$ 19,923
Investment, Identifier [Axis]: Pioneer Midco, LLC, Consumer Services
Schedule of Investments [Line Items]
Principal Amount	[1],[2],[16]	$ 35,167
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Energy—Power 1
Schedule of Investments [Line Items]
Principal Amount		$ 14,281	[1],[16],[22],[23]	$ 13,297	[3],[7],[13],[14]
Weighted average current interest rate on debt investments		6%	[11],[16],[22],[23]	6%	[7],[12],[13],[14]
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Energy—Power 2
Schedule of Investments [Line Items]
Principal Amount		$ 4,428	[1],[16],[22],[23]	$ 4,015	[3],[7],[13],[14]
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Energy—Power 3
Schedule of Investments [Line Items]
Principal Amount	[1],[16],[17]	$ 2,344
Weighted average current interest rate on debt investments	[11],[16],[17]	10%
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Letter of Credit, Energy—Power
Schedule of Investments [Line Items]
Principal Amount	[3],[6],[7]			$ 2,709
Weighted average current interest rate on debt investments	[6],[7],[12]			10%
Investment, Identifier [Axis]: Pretium PKG Holdings, Inc., Materials
Schedule of Investments [Line Items]
Principal Amount		$ 32,788	[1],[2]	$ 30,118	[3],[4]
Investment, Identifier [Axis]: Pro Mach Group, Inc., Capital Goods
Schedule of Investments [Line Items]
Principal Amount		17,380	[1],[2]	19,924	[3],[4]
Investment, Identifier [Axis]: Proampac PG Borrower LLC, Materials
Schedule of Investments [Line Items]
Principal Amount		22,828	[1],[2]	20,000	[3],[4]
Investment, Identifier [Axis]: RPC TopCo Inc., Consumer Durables & Apparel 1
Schedule of Investments [Line Items]
Principal Amount	[1],[16]	$ 21,970
Weighted average current interest rate on debt investments	[11],[16]	5%
Investment, Identifier [Axis]: RPC TopCo Inc., Consumer Durables & Apparel 2
Schedule of Investments [Line Items]
Principal Amount	[1],[16],[17]	$ 3,030
Weighted average current interest rate on debt investments	[11],[16],[17]	5.50%
Investment, Identifier [Axis]: RealTruck Group, Inc, Automobiles & Components
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	$ 24,756
Investment, Identifier [Axis]: Realtruck Group, Inc., Automobiles & Components
Schedule of Investments [Line Items]
Principal Amount	[3],[4],[5]			19,956
Investment, Identifier [Axis]: Revlon Intermediate Holdings IV LLC, Household & Personal Products
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	$ 15,000
Weighted average current interest rate on debt investments	[2],[11]	6.88%
Investment, Identifier [Axis]: Ryan, LLC, Commercial & Professional Services 1
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	$ 9,795
Investment, Identifier [Axis]: Ryan, LLC, Commercial & Professional Services 2
Schedule of Investments [Line Items]
Principal Amount	[1],[17]	1,036
Investment, Identifier [Axis]: Ryan, LLC, Commerical & Professional Services 1
Schedule of Investments [Line Items]
Principal Amount	[3],[4],[5]			9,844
Investment, Identifier [Axis]: Ryan, LLC, Commerical & Professional Services 2
Schedule of Investments [Line Items]
Principal Amount	[3],[5],[6]			1,036
Investment, Identifier [Axis]: SRS Distribution Inc., Capital Goods
Schedule of Investments [Line Items]
Principal Amount	[3],[4],[5]			19,924
Investment, Identifier [Axis]: ST EIP Holdings Inc., Energy—Midstream
Schedule of Investments [Line Items]
Principal Amount	[3],[4],[7]			$ 10,365
Weighted average current interest rate on debt investments	[4],[7],[12]			6.30%
Investment, Identifier [Axis]: ST EIP Holdings, Inc., Energy—Midstream
Schedule of Investments [Line Items]
Principal Amount	[1],[2],[16]	$ 10,199
Weighted average current interest rate on debt investments	[2],[11],[16]	6.30%
Investment, Identifier [Axis]: SupplyOne, Inc., Materials
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	$ 8,955
Investment, Identifier [Axis]: Sustainable Infrastructure Investments, LLC, Energy—Power
Schedule of Investments [Line Items]
Principal Amount		60,603	[1],[10],[16],[28]	$ 60,603	[3],[7],[9],[15]
Investment, Identifier [Axis]: TKC Holdings, Inc., Consumer Staples Distribution & Retail
Schedule of Investments [Line Items]
Principal Amount		24,309	[1],[2]	19,650	[3],[4]
Investment, Identifier [Axis]: Tenrgys, LLC, Energy—Upstream
Schedule of Investments [Line Items]
Principal Amount		20,537	[1],[2],[16]	20,537	[3],[4],[7]
Investment, Identifier [Axis]: TruGreen, LP, Commercial & Professional Services
Schedule of Investments [Line Items]
Principal Amount		$ 24,718	[1],[2]	19,910	[3],[4]
Investment, Identifier [Axis]: U.S. Treasury Bills, U.S. Treasury Bills
Schedule of Investments [Line Items]
Principal Amount	[29]			$ 21,000
Investment, Identifier [Axis]: USA Compression Partners, LP, Preferred Equity, Energy—Midstream
Schedule of Investments [Line Items]
Weighted average current interest rate on debt investments		9.80%		9.80%	[4],[7],[9],[12]
Investment, Identifier [Axis]: United Natural Foods, Inc., Consumer Staples Distribution & Retail
Schedule of Investments [Line Items]
Principal Amount	[1],[2],[10]	$ 20,948
Investment, Identifier [Axis]: Universal Entertainment Corp., Consumer Durables & Apparel
Schedule of Investments [Line Items]
Principal Amount	[1],[10]	$ 9,625
Weighted average current interest rate on debt investments	[10],[11]	9.90%
Investment, Identifier [Axis]: Upstream Newco, Inc., Health Care Equipment & Services
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	$ 6,971
Investment, Identifier [Axis]: WMK, LLC, Consumer Discretionary Distribution & Retail 1
Schedule of Investments [Line Items]
Principal Amount	[1],[2],[16]	31,050
Investment, Identifier [Axis]: WMK, LLC, Consumer Discretionary Distribution & Retail 2
Schedule of Investments [Line Items]
Principal Amount	[1],[16],[17]	3,583
Investment, Identifier [Axis]: Warren Resources, Inc., Energy—Upstream
Schedule of Investments [Line Items]
Principal Amount		31,163	[1],[16]	$ 23,823	[3],[4],[7],[15]
Investment, Identifier [Axis]: Wattbridge Inc., Energy—Power
Schedule of Investments [Line Items]
Principal Amount	[3],[4],[7]			42,938
Investment, Identifier [Axis]: Weber-Stephen Products LLC, Consumer Durables & Apparel
Schedule of Investments [Line Items]
Principal Amount	[1],[2]	26,119
Investment, Identifier [Axis]: WildBrain Ltd., Media & Entertainment 1
Schedule of Investments [Line Items]
Principal Amount	[1],[10],[16]	1,771
Investment, Identifier [Axis]: WildBrain Ltd., Media & Entertainment 2
Schedule of Investments [Line Items]
Principal Amount	[1],[2],[10],[16]	31,547
Investment, Identifier [Axis]: WildBrain Ltd., Media & Entertainment 3
Schedule of Investments [Line Items]
Principal Amount	[1],[10],[16],[17]	1,602
Sustainable Infrastructure Investments, LLC
Schedule of Investments [Line Items]
Principal Amount		$ 104,101		$ 170,083
Number of portfolio assets in SIIJV | portfolio_asset		3		6
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: Blue Heron Intermediate Holdco I, LLC, Midstream
Schedule of Investments [Line Items]
Principal Amount				$ 30,661
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: Copper Mountain Solar 3, LLC, Renewables
Schedule of Investments [Line Items]
Principal Amount				16,104
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: FLNG Liquefaction 2, LLC, Midstream
Schedule of Investments [Line Items]
Principal Amount		$ 25,052		26,567
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: Largest Portfolio Company Investment
Schedule of Investments [Line Items]
Principal Amount		55,422		57,227
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: NES Hercules Class B Member, LLC, Renewables
Schedule of Investments [Line Items]
Principal Amount		23,627		24,176
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: ST EIP Holdco LLC, Midstream
Schedule of Investments [Line Items]
Principal Amount		$ 55,422		57,227
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: Seine Funding, LLC
Schedule of Investments [Line Items]
Principal Amount						$ 634,103
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: Top of the World Wind Energy LLC, Renewables
Schedule of Investments [Line Items]
Principal Amount				$ 15,348
Sustainable Infrastructure Investments, LLC | Weighted Average
Schedule of Investments [Line Items]
Weighted average current interest rate on debt investments		6.79%		7.45%
[1]Denominated in U.S. dollars, unless otherwise noted.[2]Security or portion thereof held within FSSL Finance BB AssetCo LLC, a wholly-owned subsidiary of the Company, and is pledged as collateral supporting the obligations outstanding under the repurchase facility with Barclays Bank PLC (see Note 9).[3]Denominated in U.S. dollars, unless otherwise noted.[4]Security or portion thereof held within FSSL Finance BB AssetCo LLC, a wholly-owned subsidiary of the Company, and is pledged as collateral supporting the obligations outstanding under the repurchase facility with Barclays Bank PLC (see Note 9).[5]Security or portion thereof unsettled as of December 31, 2023.[6]Security is an unfunded commitment. The stated rate reflects the spread disclosed at the time of commitment and may not indicate the actual rate received upon funding.[7]Security is classified as Level 3 in the Company’s fair value hierarchy (see Note 8).[8]Security or portion thereof held within FS Power Investments II, LLC, a wholly-owned subsidiary of the Company.[9]The investment is not a qualifying asset under the Investment Company Act of 1940, as amended, or the 1940 Act. A business development company may not acquire any asset other than a qualifying asset, unless, at the time the acquisition is made, qualifying assets represent at least 70% of the business development company’s total assets. As of December 31, 2023, 80.8% of the Company’s total assets represented qualifying assets.[10]The investment is not a qualifying asset under the Investment Company Act of 1940, as amended, or the 1940 Act. A business development company may not acquire any asset other than a qualifying asset, unless, at the time the acquisition is made, qualifying assets represent at least 70% of the business development company’s total assets. As of September 30, 2024, 82.5% of the Company’s total assets represented qualifying assets.[11]Certain variable rate securities in the Company’s portfolio bear interest at a rate determined by a publicly disclosed base rate plus a basis point spread. As of September 30, 2024, the one-month and three-month Secured Overnight Financing Rate, or SOFR, or S, was 4.85% and 4.59%, respectively, and the Overnight Bank Funding Rate, or OBFR, was 4.83%. SOFR based contracts may include a credit spread adjustment that is charged in addition to the base rate and basis point spread. PIK means paid-in-kind. PIK income accruals may be adjusted based on the fair value of the underlying investment. Variable rate securities with no floor rate use the respective benchmark rate in all cases.[12]Certain variable rate securities in the Company’s portfolio bear interest at a rate determined by a publicly disclosed base rate plus a basis point spread. As of December 31, 2023, the one-month and three-month Secured Overnight Financing Rate, or SOFR, or S, was 5.35% and 5.33%, respectively, and the Overnight Bank Funding Rate, or OBFR, was 5.32%. SOFR based contracts may include a credit spread adjustment that is charged in addition to the base rate and basis point spread. PIK means paid-in-kind. PIK income accruals may be adjusted based on the fair value of the underlying investment. Variable rate securities with no floor rate use the respective benchmark rate in all cases. Portfolio Company Fair Value at December 31, 2022 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at December 31, 2023 Interest Income (3) PIK Income (3) Dividend Income (3) Senior Secured Loans—First Lien Allied Downhole Technologies, LLC $ 8,436 $ 138 $ (8,574) $ — $ — $ — $ 256 $ 139 $ — Allied Wireline Services, LLC 63,888 6,389 — — (48,077) 22,200 — 2,910 — Warren Resources, Inc. 23,584 239 — — — 23,823 3,464 179 — Sustainable Infrastructure Investments, LLC Sustainable Infrastructure Investments, LLC 51,098 — (11,364) — (307) 39,427 — — 8,324 Equity/Other Allied Wireline Services, LLC, Common Equity 10,463 — — — (10,463) — — — — Allied Wireline Services, LLC, Warrants — — — — — — — — — Warren Resources, Inc., Common Equity 36,982 — — — (21,416) 15,566 — — — $ 194,451 $ 6,766 $ (19,938) $ — $ (80,263) $ 101,016 $ 3,720 $ 3,228 $ 8,324 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest, PIK and dividend income presented for the year ended December 31, 2023. Portfolio Company Fair Value at December 31, 2023 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at September 30, 2024 Interest Income (3) PIK Income (3) Senior Secured Loans—First Lien Permian Production Holdings, LLC $ 4,816 $ 161 $ (2,045) $ 148 $ (234) $ 2,846 $ 378 $ 63 Asset Based Finance Bridge Street CLO IV Ltd., Subordinated Notes — 23,711 (222) — (1,909) 21,580 1,776 — Bridge Street Warehouse CLO IV Ltd. — 22,729 (22,729) — — — — 729 Bridge Street Warehouse CLO V Ltd. — 5,036 — — — 5,036 — 36 Equity/Other GWP Midstream Holdco, LLC, Common Equity 1,661 — — — 717 2,378 — — Harvest Oil & Gas Corp., Common Equity 271 — — — 94 365 — — Permian Production Holdings, LLC, Common Equity 748 — — — (748) — — — Telpico, LLC, Common Equity — — — — — — — — $ 7,496 $ 51,637 $ (24,996) $ 148 $ (2,080) $ 32,205 $ 2,154 $ 828 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest and PIK income presented for the nine months ended September 30, 2024. Portfolio Company Fair Value at December 31, 2022 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at December 31, 2023 Interest Income (3) PIK Income (3) Senior Secured Loans—First Lien Permian Production Holdings, LLC $ 4,767 $ 231 $ — $ — $ (182) $ 4,816 $ 675 $ 97 Equity/Other GWP Midstream Holdco, LLC, Common Equity 5,044 — (3,112) 3,112 (3,383) 1,661 — — Harvest Oil & Gas Corp., Common Equity 810 — (641) — 102 271 — — Limetree Bay Energy, LLC, Class A Units 1,885 246 — (21,704) 19,573 — — — Permian Production Holdings, LLC, Common Equity 11,420 — — — (10,672) 748 — — Ridgeback Resources Inc., Common Equity 41,851 — (35,240) (11,359) 4,748 — — — Telpico, LLC, Common Equity — — — — — — — — $ 65,777 $ 477 $ (38,993) $ (29,951) $ 10,186 $ 7,496 $ 675 $ 97 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest and PIK income presented for the year ended December 31, 2023. Portfolio Company Fair Value at December 31, 2023 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at September 30, 2024 Interest Income (3) PIK Income (3) Senior Secured Loans—First Lien Allied Wireline Services, LLC $ 22,200 $ — $ (19,282) $ (50,995) $ 48,077 $ — $ — $ — Warren Resources, Inc. 23,823 60 (20,357) (3,526) — — 1,508 60 Sustainable Infrastructure Investments, LLC Sustainable Infrastructure Investments, LLC 39,427 — — — 6,897 46,324 — — Equity/Other Allied Wireline Services, LLC, Common Equity — — — (1,527) 1,527 — — — Allied Wireline Services, LLC, Warrants — — — — — — — — Warren Resources, Inc., Common Equity 15,566 127 (13,578) (7,303) 5,188 — — — $ 101,016 $ 187 $ (53,217) $ (63,351) $ 61,689 $ 46,324 $ 1,508 $ 60 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest and PIK income presented for the nine months ended September 30, 2024.

Investment Portfolio - Sustaina

Investment Portfolio - Sustainable Infrastructure Investments, LLC Portfolio (Details) - USD ($) $ in Thousands		Sep. 30, 2024		Dec. 31, 2023		Dec. 31, 2022	Jan. 02, 2020
Schedule of Investments [Line Items]
Amortized Cost		$ 1,756,453	[1]	$ 1,543,925	[2]
Investments, at fair value		$ 1,692,052	[1],[3]	$ 1,523,196	[2],[4]
Percent of net assets		108.90%	[1]	97.50%	[2]
Net Senior Secured Loans—First Lien
Schedule of Investments [Line Items]
Amortized Cost		$ 1,217,691	[1]	$ 878,013	[2]
Investments, at fair value		$ 1,209,850	[1],[3]	$ 825,158	[2],[4]
Percent of net assets		77.80%	[1]	52.90%	[2]
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., Capital Goods
Schedule of Investments [Line Items]
Variable rate	[5],[6]	3.50%
Principal Amount	[6],[7]	$ 19,950
Amortized Cost	[6]	19,818
Investments, at fair value	[3],[6]	$ 19,949
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., Capital Goods 1
Schedule of Investments [Line Items]
Variable rate	[8],[9],[10]			4.25%
Principal Amount	[9],[10],[11]			$ 16,522
Amortized Cost	[9],[10]			16,398
Investments, at fair value	[4],[9],[10]			$ 16,625
Investment, Identifier [Axis]: AI Aqua Merger Sub, Inc., Capital Goods 2
Schedule of Investments [Line Items]
Variable rate	[8],[10],[12]			4.25%
Principal Amount	[10],[11],[12]			$ 3,478
Amortized Cost	[10],[12]			3,452
Investments, at fair value	[4],[10],[12]			$ 3,500
Investment, Identifier [Axis]: AIRRO (Mauritius) Holdings II, Energy—Power
Schedule of Investments [Line Items]
Variable rate	[8],[13],[14],[15]			4%
Principal Amount	[11],[13],[14],[15]			$ 22,856
Amortized Cost	[13],[14],[15]			20,779
Investments, at fair value	[4],[13],[14],[15]			23,050
Investment, Identifier [Axis]: AIRRO (Mauritius) Holdings II, Warrants, Strike: $1.00, Energy—Power
Schedule of Investments [Line Items]
Amortized Cost	[13],[14],[15],[16]			2,652
Investments, at fair value	[4],[13],[14],[15],[16]			0
Investment, Identifier [Axis]: APTIM Corp., Commercial & Professional Services
Schedule of Investments [Line Items]
Variable rate	[5],[6]	7.50%
Principal Amount	[6],[7]	$ 27,500
Amortized Cost	[6]	27,500
Investments, at fair value	[3],[6]	$ 27,775
Investment, Identifier [Axis]: Abaco Energy Technologies LLC, Common Equity, Energy—Service & Equipment
Schedule of Investments [Line Items]
Amortized Cost	[13],[16]			6,944
Investments, at fair value	[4],[13],[16]			1,375
Investment, Identifier [Axis]: Abaco Energy Technologies LLC, Preferred Equity, Energy—Service & Equipment
Schedule of Investments [Line Items]
Amortized Cost	[13],[16]			1,447
Investments, at fair value	[4],[13],[16]			$ 10,159
Investment, Identifier [Axis]: Acrisure, LLC, Insurance
Schedule of Investments [Line Items]
Variable rate		3.25%	[5],[6]	4.50%	[8],[9]
Principal Amount		$ 18,849	[6],[7]	$ 20,175	[9],[11]
Amortized Cost		18,789	[6]	20,033	[9]
Investments, at fair value		$ 18,702	[3],[6]	$ 20,251	[4],[9]
Investment, Identifier [Axis]: Aimbridge Acquisition Co. Inc., Consumer Services
Schedule of Investments [Line Items]
Variable rate		3.75%	[5],[6]	3.75%	[8],[9]
Principal Amount		$ 26,595	[6],[7]	$ 21,805	[9],[11]
Amortized Cost		25,844	[6]	21,036	[9]
Investments, at fair value		25,999	[3],[6]	20,380	[4],[9]
Investment, Identifier [Axis]: AirSwift Holdings, Ltd., Common Equity, Commercial & Professional Services
Schedule of Investments [Line Items]
Amortized Cost		5,136	[17],[18],[19]	6,029	[13],[15],[16]
Investments, at fair value		3,214	[3],[17],[18],[19]	3,413	[4],[13],[15],[16]
Investment, Identifier [Axis]: Allegiant Travel Co., Transportation
Schedule of Investments [Line Items]
Principal Amount		12,271	[7],[19]	10,601	[11],[15]
Amortized Cost		11,357	[19]	9,614	[15]
Investments, at fair value		$ 12,179	[3],[19]	10,385	[4],[15]
Investment, Identifier [Axis]: Allied Downhole Technologies, LLC
Schedule of Investments [Line Items]
Investments, at fair value				$ 0		$ 8,436
Investment, Identifier [Axis]: Allied Universal Holdco LLC, Consumer Services
Schedule of Investments [Line Items]
Variable rate	[5],[6]	3.75%
Principal Amount	[6],[7]	$ 22,786
Amortized Cost	[6]	22,528
Investments, at fair value	[3],[6]	22,590
Investment, Identifier [Axis]: Allied Universal Holdco LLC, Consumer Services 1
Schedule of Investments [Line Items]
Variable rate	[8],[9]			4.75%
Principal Amount	[9],[11]			$ 9,975
Amortized Cost	[9]			9,841
Investments, at fair value	[4],[9]			$ 9,998
Investment, Identifier [Axis]: Allied Universal Holdco LLC, Consumer Services 2
Schedule of Investments [Line Items]
Variable rate	[8],[9]			3.75%
Principal Amount	[9],[11]			$ 9,929
Amortized Cost	[9]			9,627
Investments, at fair value	[4],[9]			9,903
Investment, Identifier [Axis]: Allied Wireline Services, LLC
Schedule of Investments [Line Items]
Investments, at fair value		0		22,200		63,888
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Common Equity
Schedule of Investments [Line Items]
Investments, at fair value		0		0		10,463
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Common Equity, Energy—Service & Equipment
Schedule of Investments [Line Items]
Amortized Cost	[13],[16],[20],[21]			1,527
Investments, at fair value	[4],[13],[16],[20],[21]			0
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Energy—Service & Equipment
Schedule of Investments [Line Items]
Principal Amount	[11],[13],[16],[21],[22]			70,277
Amortized Cost	[13],[16],[21],[22]			70,277
Investments, at fair value	[4],[13],[16],[21],[22]			22,200
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Warrants
Schedule of Investments [Line Items]
Investments, at fair value		0		0		0
Investment, Identifier [Axis]: Allied Wireline Services, LLC, Warrants, Energy—Service & Equipment
Schedule of Investments [Line Items]
Amortized Cost	[13],[16],[20],[21]			0
Investments, at fair value	[4],[13],[16],[20],[21]			0
Investment, Identifier [Axis]: Allspring Government Money Market Fund - Select Class, Money Market Fund
Schedule of Investments [Line Items]
Investments, at fair value		$ 33,275		$ 23,098
Investment, Identifier [Axis]: American Auto Auction Group, LLC, Capital Goods
Schedule of Investments [Line Items]
Variable rate		5%	[5],[6]	5%	[8],[9]
Principal Amount		$ 23,799	[6],[7]	$ 9,975	[9],[11]
Amortized Cost		23,560	[6]	9,752	[9]
Investments, at fair value		$ 23,933	[3],[6]	9,858	[4],[9]
Investment, Identifier [Axis]: Ansira Partners, Inc., Media & Entertainment 1
Schedule of Investments [Line Items]
Variable rate	[5],[17]	6.75%
Principal Amount	[7],[17]	$ 393
Amortized Cost	[17]	295
Investments, at fair value	[3],[17]	$ 383
Investment, Identifier [Axis]: Ansira Partners, Inc., Media & Entertainment 2
Schedule of Investments [Line Items]
Variable rate	[5],[6],[17]	6.75%
Principal Amount	[6],[7],[17]	$ 36,323
Amortized Cost	[6],[17]	35,432
Investments, at fair value	[3],[6],[17]	$ 35,415
Investment, Identifier [Axis]: Ansira Partners, Inc., Media & Entertainment 3
Schedule of Investments [Line Items]
Variable rate	[5],[17],[23]	6.75%
Principal Amount	[7],[17],[23]	$ 3,534
Amortized Cost	[17],[23]	3,534
Investments, at fair value	[3],[17],[23]	3,446
Investment, Identifier [Axis]: Arena Energy, LP, Contingent Value Rights, Energy—Upstream
Schedule of Investments [Line Items]
Amortized Cost		351	[17]	351	[13],[16]
Investments, at fair value		187	[3],[17]	571	[4],[13],[16]
Investment, Identifier [Axis]: Aretec Escrow Issuer Inc., Financial Services
Schedule of Investments [Line Items]
Principal Amount	[9],[11]			7,000
Amortized Cost	[9]			7,000
Investments, at fair value	[4],[9]			$ 7,447
Investment, Identifier [Axis]: Aretec Escrow Issuer, Inc., Financial Services
Schedule of Investments [Line Items]
Principal Amount	[6],[7]	2,000
Amortized Cost	[6]	2,000
Investments, at fair value	[3],[6]	$ 2,131
Investment, Identifier [Axis]: Aretec Group, Inc., Financial Services
Schedule of Investments [Line Items]
Variable rate		4%	[5],[6]	4.50%	[8],[9],[10]
Principal Amount		$ 6,800	[6],[7]	$ 9,352	[9],[10],[11]
Amortized Cost		6,772	[6]	9,071	[9],[10]
Investments, at fair value		6,671	[3],[6]	9,358	[4],[9],[10]
Investment, Identifier [Axis]: Ascent Resources Utica Holdings, LLC, Common Equity, Energy—Upstream
Schedule of Investments [Line Items]
Amortized Cost		42,739	[17],[18],[24]	44,573	[13],[16],[20]
Investments, at fair value		$ 36,342	[3],[17],[18],[24]	$ 39,545	[4],[13],[16],[20]
Investment, Identifier [Axis]: Auris Luxembourg III S.a r.l, Health Care Equipment & Services
Schedule of Investments [Line Items]
Variable rate		4.25%	[5],[6],[19]	3.75%	[8],[9],[15]
Principal Amount		$ 22,802	[6],[7],[19]	$ 20,287	[9],[11],[15]
Amortized Cost		22,697	[6],[19]	19,912	[9],[15]
Investments, at fair value		$ 22,838	[3],[6],[19]	$ 20,079	[4],[9],[15]
Investment, Identifier [Axis]: Aveanna Healthcare LLC, Health Care Equipment & Services
Schedule of Investments [Line Items]
Variable rate		3.75%	[5],[6]	3.75%	[8],[9]
Principal Amount		$ 20,748	[6],[7]	$ 15,909	[9],[11]
Amortized Cost		18,817	[6]	14,054	[9]
Investments, at fair value		$ 20,315	[3],[6]	$ 14,852	[4],[9]
Investment, Identifier [Axis]: BCPE Empire Holdings, Inc., Consumer Services
Schedule of Investments [Line Items]
Variable rate		4%	[5],[6]	4.75%	[8],[9]
Principal Amount		$ 22,288	[6],[7]	$ 24,900	[9],[11]
Amortized Cost		22,359	[6]	24,983	[9]
Investments, at fair value		22,323	[3],[6]	24,998	[4],[9]
Investment, Identifier [Axis]: Bridge Street CLO IV Ltd., Subordinated Notes
Schedule of Investments [Line Items]
Investments, at fair value		21,580		0
Investment, Identifier [Axis]: Bridge Street CLO IV Ltd., Subordinated Notes, Financial Services
Schedule of Investments [Line Items]
Principal Amount	[7],[17],[19],[25],[26],[27]	23,700
Amortized Cost	[17],[19],[25],[26],[27]	23,489
Investments, at fair value	[3],[17],[19],[25],[26],[27]	21,580
Investment, Identifier [Axis]: Bridge Street Warehouse CLO IV Ltd., Financial Services
Schedule of Investments [Line Items]
Investments, at fair value		21,580
Investment, Identifier [Axis]: Bridge Street Warehouse CLO IV, Ltd.
Schedule of Investments [Line Items]
Investments, at fair value		0		0
Investment, Identifier [Axis]: Bridge Street Warehouse CLO V Ltd., Financial Services
Schedule of Investments [Line Items]
Principal Amount	[7],[17],[19],[27],[28]	5,000
Amortized Cost	[17],[19],[27],[28]	5,036
Investments, at fair value	[3],[17],[19],[27],[28]	5,036
Investment, Identifier [Axis]: Bridge Street Warehouse CLO V, Ltd.
Schedule of Investments [Line Items]
Investments, at fair value		$ 5,036		$ 0
Investment, Identifier [Axis]: Brock Holdings III, LLC, Capital Goods
Schedule of Investments [Line Items]
Variable rate	[5],[6],[19]	6%
Principal Amount	[6],[7],[19]	$ 8,500
Amortized Cost	[6],[19]	8,339
Investments, at fair value	[3],[6],[19]	$ 8,589
Investment, Identifier [Axis]: CCS-CMGC Holdings, Inc., Health Care Equipment & Services
Schedule of Investments [Line Items]
Variable rate		5.50%	[5],[6],[18],[29]	5.50%	[8],[9]
Principal Amount		$ 27,622	[6],[7],[18],[29]	$ 21,465	[9],[11]
Amortized Cost		24,430	[6],[18],[29]	18,225	[9]
Investments, at fair value		$ 17,525	[3],[6],[18],[29]	$ 18,222	[4],[9]
Investment, Identifier [Axis]: CPM Holdings, Inc., Capital Goods
Schedule of Investments [Line Items]
Variable rate		4.50%	[5],[6]	4.50%	[8],[9]
Principal Amount		$ 24,813	[6],[7]	$ 20,000	[9],[11]
Amortized Cost		24,879	[6]	20,038	[9]
Investments, at fair value		$ 23,616	[3],[6]	$ 20,092	[4],[9]
Investment, Identifier [Axis]: Charlotte Buyer, Inc., Health Care Equipment & Services
Schedule of Investments [Line Items]
Variable rate		4.75%	[5],[6]	5.25%	[8],[9],[10]
Principal Amount		$ 17,755	[6],[7]	$ 19,845	[9],[10],[11]
Amortized Cost		17,844	[6]	19,937	[9],[10]
Investments, at fair value		$ 17,913	[3],[6]	$ 19,952	[4],[9],[10]
Investment, Identifier [Axis]: Chinos Intermediate 2, LLC, Consumer Discretionary Distribution & Retail
Schedule of Investments [Line Items]
Variable rate	[5],[30]	6%
Principal Amount	[7],[30]	$ 16,000
Amortized Cost	[30]	15,720
Investments, at fair value	[3],[30]	$ 16,120
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 1
Schedule of Investments [Line Items]
Variable rate		6.50%	[5],[17]	6.75%	[8],[9],[13]
Principal Amount		$ 2,145	[7],[17]	$ 20,915	[9],[11],[13]
Amortized Cost		2,151	[17]	20,915	[9],[13]
Investments, at fair value		$ 2,179	[3],[17]	$ 21,098	[4],[9],[13]
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 2
Schedule of Investments [Line Items]
Variable rate		6.50%	[5],[6],[17]	6.75%	[8],[12],[13]
Principal Amount		$ 20,758	[6],[7],[17]	$ 2,688	[11],[12],[13]
Amortized Cost		20,758	[6],[17]	2,688	[12],[13]
Investments, at fair value		$ 21,031	[3],[6],[17]	$ 2,712	[4],[12],[13]
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 3
Schedule of Investments [Line Items]
Variable rate		6.50%	[5],[17]	6.75%	[8],[12],[13]
Principal Amount		$ 538	[7],[17]	$ 1,344	[11],[12],[13]
Amortized Cost		538	[17]	1,344	[12],[13]
Investments, at fair value		$ 542	[3],[17]	$ 1,356	[4],[12],[13]
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 4
Schedule of Investments [Line Items]
Variable rate	[5],[17],[23]	6.50%
Principal Amount	[7],[17],[23]	$ 538
Amortized Cost	[17],[23]	538
Investments, at fair value	[3],[17],[23]	$ 545
Investment, Identifier [Axis]: CircusTrix Holdings, LLC, Consumer Services 5
Schedule of Investments [Line Items]
Variable rate	[5],[17],[23]	6.50%
Principal Amount	[7],[17],[23]	$ 806
Amortized Cost	[17],[23]	806
Investments, at fair value	[3],[17],[23]	$ 813
Investment, Identifier [Axis]: Cirque Du Soleil Holding USA Newco, Inc., Financial Services
Schedule of Investments [Line Items]
Variable rate	[8],[9],[10]			4.25%
Principal Amount	[9],[10],[11]			$ 6,387
Amortized Cost	[9],[10]			6,331
Investments, at fair value	[4],[9],[10]			$ 6,372
Investment, Identifier [Axis]: Cirque Du Soleil Holding USA Newco, Inc., Media & Entertainment
Schedule of Investments [Line Items]
Variable rate	[5],[6],[19]	3.75%
Principal Amount	[6],[7],[19]	$ 8,324
Amortized Cost	[6],[19]	8,278
Investments, at fair value	[3],[6],[19]	$ 8,234
Investment, Identifier [Axis]: Citizen Energy Operating, LLC, Energy—Upstream
Schedule of Investments [Line Items]
Variable rate		7.50%	[5],[6],[17]	7.65%	[8],[9],[13]
Principal Amount		$ 32,000	[6],[7],[17]	$ 35,000	[9],[11],[13]
Amortized Cost		31,612	[6],[17]	34,527	[9],[13]
Investments, at fair value		$ 32,210	[3],[6],[17]	$ 34,426	[4],[9],[13]
Investment, Identifier [Axis]: Clear Channel Outdoor Holdings, Inc., Media & Entertainment
Schedule of Investments [Line Items]
Variable rate		4%	[5],[6],[19]	3.50%	[8],[9],[15]
Principal Amount		$ 12,500	[6],[7],[19]	$ 20,000	[9],[11],[15]
Amortized Cost		12,307	[6],[19]	19,551	[9],[15]
Investments, at fair value		$ 12,489	[3],[6],[19]	$ 19,829	[4],[9],[15]
Investment, Identifier [Axis]: Clydesdale Acquisition Holdings Inc., Financials Services
Schedule of Investments [Line Items]
Variable rate	[8],[9]			4.18%
Principal Amount	[9],[11]			$ 19,949
Amortized Cost	[9]			19,740
Investments, at fair value	[4],[9]			20,061
Investment, Identifier [Axis]: Cop Village Green Acquisitions, Inc., Real Estate Management & Development 1
Schedule of Investments [Line Items]
Variable rate	[5],[17]	4.75%
Principal Amount	[7],[17]	$ 12,739
Amortized Cost	[17]	12,495
Investments, at fair value	[3],[17]	$ 12,495
Investment, Identifier [Axis]: Cop Village Green Acquisitions, Inc., Real Estate Management & Development 2
Schedule of Investments [Line Items]
Variable rate	[5],[17],[23]	4.75%
Principal Amount	[7],[17],[23]	$ 9,762
Amortized Cost	[17],[23]	9,762
Investments, at fair value	[3],[17],[23]	$ 9,762
Investment, Identifier [Axis]: Cox Oil Offshore, LLC, Volumetric Production Payments, Energy—Upstream
Schedule of Investments [Line Items]
Principal Amount	[11],[13],[31],[32]			100,000
Amortized Cost	[13],[31],[32]			1,129
Investments, at fair value	[4],[13],[31],[32]			$ 1,234
Investment, Identifier [Axis]: Crown SubSea Communication Holding, Inc., Capital Goods
Schedule of Investments [Line Items]
Variable rate	[5],[6]	4%
Principal Amount	[6],[7]	$ 5,985
Amortized Cost	[6]	5,929
Investments, at fair value	[3],[6]	$ 6,029
Investment, Identifier [Axis]: Crown SubSea Communications Holding, Inc., Capital Goods 1
Schedule of Investments [Line Items]
Variable rate	[8],[9],[10]			5%
Principal Amount	[9],[10],[11]			$ 4,500
Amortized Cost	[9],[10]			4,523
Investments, at fair value	[4],[9],[10]			$ 4,534
Investment, Identifier [Axis]: Crown SubSea Communications Holding, Inc., Capital Goods 2
Schedule of Investments [Line Items]
Variable rate	[8],[9],[10]			5.25%
Principal Amount	[9],[10],[11]			$ 5,430
Amortized Cost	[9],[10]			5,445
Investments, at fair value	[4],[9],[10]			$ 5,468
Investment, Identifier [Axis]: Delivery Hero Finco LLC, Consumer Services
Schedule of Investments [Line Items]
Variable rate	[5],[19]	5%
Principal Amount	[7],[19]	$ 24,875
Amortized Cost	[19]	24,802
Investments, at fair value	[3],[19]	$ 25,019
Investment, Identifier [Axis]: Digicel International Finance Ltd., Telecommunication Services
Schedule of Investments [Line Items]
Variable rate	[5],[6]	5.15%
Principal Amount	[6],[7]	$ 20,154
Amortized Cost	[6]	19,486
Investments, at fair value	[3],[6]	$ 19,983
Investment, Identifier [Axis]: Electrical Components International, Inc., Capital Goods 1
Schedule of Investments [Line Items]
Variable rate	[5],[6],[17]	6.50%
Principal Amount	[6],[7],[17]	$ 47,282
Amortized Cost	[6],[17]	46,390
Investments, at fair value	[3],[6],[17]	$ 46,395
Investment, Identifier [Axis]: Electrical Components International, Inc., Capital Goods 2
Schedule of Investments [Line Items]
Variable rate	[5],[17],[23]	6.50%
Principal Amount	[7],[17],[23]	$ 2,600
Amortized Cost	[17],[23]	2,600
Investments, at fair value	[3],[17],[23]	$ 2,551
Investment, Identifier [Axis]: Engineered Machinery Holdings, Inc., Capital Goods
Schedule of Investments [Line Items]
Variable rate		3.75%	[5],[6]	3.50%	[8],[9]
Principal Amount		$ 24,733	[6],[7]	$ 19,924	[9],[11]
Amortized Cost		24,673	[6]	19,847	[9]
Investments, at fair value		$ 24,845	[3],[6]	$ 19,840	[4],[9]
Investment, Identifier [Axis]: FR XIII PAA Holdings HoldCo, LLC, Energy—Midstream
Schedule of Investments [Line Items]
Variable rate	[8],[9],[13]			7.50%
Principal Amount	[9],[11],[13]			$ 17,047
Amortized Cost	[9],[13]			16,855
Investments, at fair value	[4],[9],[13]			$ 17,156
Investment, Identifier [Axis]: First Brands Group, LLC, Automobiles & Components
Schedule of Investments [Line Items]
Variable rate		5%	[5],[6]	5%	[8],[9]
Principal Amount		$ 24,713	[6],[7]	$ 19,905	[9],[11]
Amortized Cost		24,478	[6]	19,620	[9]
Investments, at fair value		24,493	[3],[6]	19,781	[4],[9]
Investment, Identifier [Axis]: Full House Resorts, Inc., Consumer Services
Schedule of Investments [Line Items]
Principal Amount		25,742	[6],[7]	20,742	[9],[11]
Amortized Cost		23,663	[6]	18,561	[9]
Investments, at fair value		25,799	[3],[6]	19,517	[4],[9]
Investment, Identifier [Axis]: GWP Midstream Holdco, LLC, Common Equity
Schedule of Investments [Line Items]
Investments, at fair value		2,378		1,661		5,044
Investment, Identifier [Axis]: GWP Midstream Holdco, LLC, Common Equity, Energy—Midstream
Schedule of Investments [Line Items]
Amortized Cost		6,681	[17],[18],[24],[27]	6,681	[13],[16],[20],[33]
Investments, at fair value		$ 2,378	[3],[17],[18],[24],[27]	1,661	[4],[13],[16],[20],[33]
Investment, Identifier [Axis]: GasLog Ltd., Energy—Midstream
Schedule of Investments [Line Items]
Variable rate	[5],[17],[19]	7.80%
Principal Amount		$ 7,523	[7],[17],[19]	13,951	[11],[13],[15]
Amortized Cost		7,487	[17],[19]	13,874	[13],[15]
Investments, at fair value		$ 7,379	[3],[17],[19]	13,510	[4],[13],[15]
Investment, Identifier [Axis]: Gen4 Dental Partners Opco, LLC, Health Care Equipment & Services 1
Schedule of Investments [Line Items]
Variable rate	[5],[6],[17]	5.50%
Principal Amount	[6],[7],[17]	$ 23,513
Amortized Cost	[6],[17]	22,955
Investments, at fair value	[3],[6],[17]	$ 23,042
Investment, Identifier [Axis]: Gen4 Dental Partners Opco, LLC, Health Care Equipment & Services 2
Schedule of Investments [Line Items]
Variable rate	[5],[17],[23]	5.50%
Principal Amount	[7],[17],[23]	$ 9,428
Amortized Cost	[17],[23]	9,428
Investments, at fair value	[3],[17],[23]	9,240
Investment, Identifier [Axis]: Global Jet Capital Holdings, LP, Preferred Equity, Commercial & Professional Services
Schedule of Investments [Line Items]
Amortized Cost		9,806	[17],[18]	2,786	[13],[16]
Investments, at fair value		$ 6,938	[3],[17],[18]	0	[4],[13],[16]
Investment, Identifier [Axis]: Global Jet Capital Holdings, LP, Preferred Equity, Commercial & Professional Services, 9.0% PIK (9.0% Max PIK)
Schedule of Investments [Line Items]
Amortized Cost	[13],[16],[22]			12,493
Investments, at fair value	[4],[13],[16],[22]			$ 10,357
Investment, Identifier [Axis]: Gold Rush Amusements, Inc., Consumer Services
Schedule of Investments [Line Items]
Variable rate		7.50%	[5],[6],[17]	7.50%	[8],[9],[13]
Principal Amount		$ 30,442	[6],[7],[17]	$ 30,673	[9],[11],[13]
Amortized Cost		29,915	[6],[17]	30,079	[9],[13]
Investments, at fair value		$ 30,480	[3],[6],[17]	$ 30,059	[4],[9],[13]
Investment, Identifier [Axis]: Goodnight Water Solutions, LLC, Energy—Midstream
Schedule of Investments [Line Items]
Variable rate	[8],[9],[13]			7%
Principal Amount	[9],[11],[13]			$ 14,516
Amortized Cost	[9],[13]			14,326
Investments, at fair value	[4],[9],[13]			$ 14,379
Investment, Identifier [Axis]: Guardian US Holdco, LLC, Financial Services
Schedule of Investments [Line Items]
Variable rate	[8],[9]			4%
Principal Amount	[9],[11]			$ 19,925
Amortized Cost	[9]			19,922
Investments, at fair value	[4],[9]			20,008
Investment, Identifier [Axis]: Guardian US Holdco, LLC, Software & Services
Schedule of Investments [Line Items]
Variable rate	[5],[6]	3.50%
Principal Amount	[6],[7]	$ 24,738
Amortized Cost	[6]	24,765
Investments, at fair value	[3],[6]	24,622
Investment, Identifier [Axis]: Guitar Center, Inc., Consumer Discretionary Distribution & Retail
Schedule of Investments [Line Items]
Principal Amount		23,568	[6],[7]	20,000	[9],[11]
Amortized Cost		21,904	[6]	17,987	[9]
Investments, at fair value		20,600	[3],[6]	17,473	[4],[9]
Investment, Identifier [Axis]: Harvest Oil & Gas Corp., Common Equity
Schedule of Investments [Line Items]
Investments, at fair value		365		271		810
Investment, Identifier [Axis]: Harvest Oil & Gas Corp., Common Equity, Energy—Upstream
Schedule of Investments [Line Items]
Amortized Cost		14,418	[17],[18],[27]	14,418	[16],[33]
Investments, at fair value		$ 365	[3],[17],[18],[27]	$ 271	[4],[16],[33]
Investment, Identifier [Axis]: Knowlton Development Corporation Inc., Household & Personal Products
Schedule of Investments [Line Items]
Variable rate	[8],[9]			5%
Principal Amount	[9],[11]			$ 21,000
Amortized Cost	[9]			20,370
Investments, at fair value	[4],[9]			$ 20,858
Investment, Identifier [Axis]: Knowlton Development Corporation, Inc., Household & Personal Products
Schedule of Investments [Line Items]
Variable rate	[5],[6]	4.50%
Principal Amount	[6],[7]	$ 25,935
Amortized Cost	[6]	25,327
Investments, at fair value	[3],[6]	$ 25,988
Investment, Identifier [Axis]: LABL, Inc., Commercial & Professional Services
Schedule of Investments [Line Items]
Variable rate	[5],[6]	5%
Principal Amount	[6],[7]	$ 24,674
Amortized Cost	[6]	24,049
Investments, at fair value	[3],[6]	$ 24,166
Investment, Identifier [Axis]: LABL, Inc., Commerical & Professional Services
Schedule of Investments [Line Items]
Variable rate	[8],[9]			5%
Principal Amount	[9],[11]			$ 19,864
Amortized Cost	[9]			19,335
Investments, at fair value	[4],[9]			$ 19,106
Investment, Identifier [Axis]: Learning Care Group No. 2 Inc., Consumer Services
Schedule of Investments [Line Items]
Variable rate	[8],[9]			4.75%
Principal Amount	[9],[11]			$ 19,950
Amortized Cost	[9]			20,070
Investments, at fair value	[4],[9]			20,100
Investment, Identifier [Axis]: Learning Care Group No. 2, Inc., Consumer Services
Schedule of Investments [Line Items]
Variable rate	[5],[6]	4%
Principal Amount	[6],[7]	$ 21,786
Amortized Cost	[6]	21,905
Investments, at fair value	[3],[6]	$ 21,929
Investment, Identifier [Axis]: Level 3 Financing, Inc., Telecommunication Services
Schedule of Investments [Line Items]
Variable rate	[5],[6],[19]	6.56%
Principal Amount	[6],[7],[19]	$ 19,291
Amortized Cost	[6],[19]	18,897
Investments, at fair value	[3],[6],[19]	$ 19,727
Investment, Identifier [Axis]: Limetree Bay Energy, LLC, Class A Units
Schedule of Investments [Line Items]
Investments, at fair value				0		1,885
Investment, Identifier [Axis]: M2S Group Intermediate Holdings, Inc., Materials
Schedule of Investments [Line Items]
Variable rate	[5]	4.75%
Principal Amount	[7]	$ 30,000
Amortized Cost		27,927
Investments, at fair value	[3]	28,875
Investment, Identifier [Axis]: MBS Services Holdings, LLC, A-3 Units, Commercial & Professional Services
Schedule of Investments [Line Items]
Amortized Cost	[17],[18],[24]	522
Investments, at fair value	[3],[17],[18],[24]	648
Investment, Identifier [Axis]: MBS Services Holdings, LLC, Commercial & Professional Services
Schedule of Investments [Line Items]
Principal Amount	[7],[17]	30,833
Amortized Cost	[17]	29,865
Investments, at fair value	[3],[17]	29,561
Investment, Identifier [Axis]: Maverick Natural Resources, LLC, Common Equity, Energy—Upstream
Schedule of Investments [Line Items]
Amortized Cost		93,044	[17],[24]	93,044	[13],[16],[20]
Investments, at fair value		$ 67,053	[3],[17],[24]	$ 164,040	[4],[13],[16],[20]
Investment, Identifier [Axis]: Mavis Tire Express Services TopCo, L.P., Consumer Discretionary Distribution & Retail
Schedule of Investments [Line Items]
Variable rate		3.50%	[5],[6]	4%	[8],[9]
Principal Amount		$ 17,263	[6],[7]	$ 19,893	[9],[11]
Amortized Cost		17,280	[6]	19,797	[9]
Investments, at fair value		$ 17,274	[3],[6]	19,955	[4],[9]
Investment, Identifier [Axis]: MedImpact Healthcare Systems, Inc., Health Care Equipment & Services
Schedule of Investments [Line Items]
Variable rate	[5],[6]	7.25%
Principal Amount	[6],[7]	$ 24,684
Amortized Cost	[6]	22,381
Investments, at fair value	[3],[6]	$ 24,313
Investment, Identifier [Axis]: NGL Energy Partners, LP, Preferred Equity, Energy—Midstream
Schedule of Investments [Line Items]
Variable rate		7%
Amortized Cost	[17],[19]	$ 26,177
Investments, at fair value	[3],[17],[19]	31,306
Investment, Identifier [Axis]: NGL Energy Partners, LP, Preferred Equity, Energy—Midstream
Schedule of Investments [Line Items]
Amortized Cost	[9],[13],[15],[16],[22]			157,633
Investments, at fair value	[4],[9],[13],[15],[16],[22]			141,141
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Par), Strike, Energy—Midstream 1
Schedule of Investments [Line Items]
Amortized Cost	[17],[18],[19]	3,083
Investments, at fair value	[3],[17],[18],[19]	691
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Par), Strike, Energy—Midstream 2
Schedule of Investments [Line Items]
Amortized Cost	[17],[18],[19]	630
Investments, at fair value	[3],[17],[18],[19]	173
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Par), Strike: $13.56, Energy—Midstream
Schedule of Investments [Line Items]
Amortized Cost	[13],[15],[16]			630
Investments, at fair value	[4],[13],[15],[16]			621
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Par), Strike: $14.54, Energy—Midstream
Schedule of Investments [Line Items]
Amortized Cost	[13],[15],[16]			3,083
Investments, at fair value	[4],[13],[15],[16]			2,682
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Premium), Strike, Energy—Midstream 1
Schedule of Investments [Line Items]
Amortized Cost	[17],[18],[19]	2,623
Investments, at fair value	[3],[17],[18],[19]	695
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Premium), Strike, Energy—Midstream 2
Schedule of Investments [Line Items]
Amortized Cost	[17],[18],[19]	576
Investments, at fair value	[3],[17],[18],[19]	$ 176
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Premium), Strike: $16.27, Energy—Midstream
Schedule of Investments [Line Items]
Amortized Cost	[13],[15],[16]			576
Investments, at fair value	[4],[13],[15],[16]			735
Investment, Identifier [Axis]: NGL Energy Partners, LP, Warrants (Premium), Strike: $17.45, Energy—Midstream
Schedule of Investments [Line Items]
Amortized Cost	[13],[15],[16]			2,623
Investments, at fair value	[4],[13],[15],[16]			3,083
Investment, Identifier [Axis]: Navios Logistics Finance, Inc., Transportation
Schedule of Investments [Line Items]
Principal Amount	[9],[11],[15]			20,000
Amortized Cost	[9],[15]			19,680
Investments, at fair value	[4],[9],[15]			$ 19,772
Investment, Identifier [Axis]: Nephron Pharmaceuticals Corp., Pharmaceuticals, Biotechnology & Life Sciences
Schedule of Investments [Line Items]
Variable rate	[8],[13]			9%
Principal Amount	[11],[13]			$ 20,000
Amortized Cost	[13]			19,400
Investments, at fair value	[4],[13]			19,300
Investment, Identifier [Axis]: Nephron Pharmaceuticals Corp., Pharmaceuticals, Biotechnology & Life Sciences 1
Schedule of Investments [Line Items]
Variable rate	[5],[17]	11%
Principal Amount	[7],[17]	$ 19,745
Amortized Cost	[17]	19,324
Investments, at fair value	[3],[17]	19,105
Investment, Identifier [Axis]: Nephron Pharmaceuticals Corp., Pharmaceuticals, Biotechnology & Life Sciences 2
Schedule of Investments [Line Items]
Principal Amount	[7],[17]	1,161
Amortized Cost	[17]	1,161
Investments, at fair value	[3],[17]	$ 1,146
Investment, Identifier [Axis]: Onbe, Inc., Financial Services
Schedule of Investments [Line Items]
Variable rate	[5],[6],[17]	5.50%
Principal Amount	[6],[7],[17]	$ 38,000
Amortized Cost	[6],[17]	37,263
Investments, at fair value	[3],[6],[17]	$ 37,240
Investment, Identifier [Axis]: Osaic Holdings, Inc., Financial Services
Schedule of Investments [Line Items]
Variable rate	[5],[6]	4%
Principal Amount	[6],[7]	$ 4,975
Amortized Cost	[6]	4,975
Investments, at fair value	[3],[6]	4,927
Investment, Identifier [Axis]: PODS, LLC, Transportation
Schedule of Investments [Line Items]
Principal Amount	[6],[7],[30]	19,897
Amortized Cost	[6],[30]	18,894
Investments, at fair value	[3],[6],[30]	18,863
Investment, Identifier [Axis]: Peloton Interactive, Inc., Consumer Durables & Apparel
Schedule of Investments [Line Items]
Principal Amount	[6],[7],[19]	24,938
Amortized Cost	[6],[19]	24,702
Investments, at fair value	[3],[6],[19]	25,081
Investment, Identifier [Axis]: Permian Production Holdings, LLC
Schedule of Investments [Line Items]
Investments, at fair value		2,846		4,816		4,767
Investment, Identifier [Axis]: Permian Production Holdings, LLC, Common Equity
Schedule of Investments [Line Items]
Investments, at fair value		0		748		11,420
Investment, Identifier [Axis]: Permian Production Holdings, LLC, Common Equity, Energy—Upstream
Schedule of Investments [Line Items]
Amortized Cost		5	[17],[18],[24],[27]	5	[13],[16],[20],[33]
Investments, at fair value		0	[3],[17],[18],[24],[27]	748	[4],[13],[16],[20],[33]
Investment, Identifier [Axis]: Permian Production Holdings, LLC, Energy—Upstream
Schedule of Investments [Line Items]
Principal Amount		2,882	[7],[17],[27]	4,864	[11],[13],[33]
Amortized Cost		2,761	[17],[27]	4,497	[13],[33]
Investments, at fair value		2,846	[3],[17],[27]	$ 4,816	[4],[13],[33]
Investment, Identifier [Axis]: Phoenix Guarantor Inc., Financial Services
Schedule of Investments [Line Items]
Variable rate	[8],[9],[10]			3.50%
Principal Amount	[9],[10],[11]			$ 19,923
Amortized Cost	[9],[10]			19,891
Investments, at fair value	[4],[9],[10]			19,951
Investment, Identifier [Axis]: Pioneer Midco, LLC, Consumer Services
Schedule of Investments [Line Items]
Principal Amount	[6],[7],[17]	35,167
Amortized Cost	[6],[17]	37,279
Investments, at fair value	[3],[6],[17]	38,103
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Energy—Power 1
Schedule of Investments [Line Items]
Principal Amount		14,281	[7],[17],[18],[29]	13,297	[11],[13],[16],[22]
Amortized Cost		11,238	[17],[18],[29]	12,329	[13],[16],[22]
Investments, at fair value		4,739	[3],[17],[18],[29]	7,473	[4],[13],[16],[22]
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Energy—Power 2
Schedule of Investments [Line Items]
Principal Amount		4,428	[7],[17],[18],[29]	4,015	[11],[13],[16],[22]
Amortized Cost		3,827	[17],[18],[29]	3,827	[13],[16],[22]
Investments, at fair value		0	[3],[17],[18],[29]	0	[4],[13],[16],[22]
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Energy—Power 3
Schedule of Investments [Line Items]
Principal Amount	[7],[17],[23]	2,344
Amortized Cost	[17],[23]	2,344
Investments, at fair value	[3],[17],[23]	$ 0
Investment, Identifier [Axis]: Plainfield Renewable Energy Holdings LLC, Letter of Credit, Energy—Power
Schedule of Investments [Line Items]
Principal Amount	[11],[12],[13]			2,709
Amortized Cost	[12],[13]			2,709
Investments, at fair value	[4],[12],[13]			$ 0
Investment, Identifier [Axis]: Pretium PKG Holdings, Inc., Materials
Schedule of Investments [Line Items]
Variable rate		2.50%	[5],[6]	5%	[8],[9]
Principal Amount		$ 32,788	[6],[7]	$ 30,118	[9],[11]
Amortized Cost		32,326	[6]	29,634	[9]
Investments, at fair value		$ 33,454	[3],[6]	$ 29,591	[4],[9]
Investment, Identifier [Axis]: Pro Mach Group, Inc., Capital Goods
Schedule of Investments [Line Items]
Variable rate		3.50%	[5],[6]	4%	[8],[9]
Principal Amount		$ 17,380	[6],[7]	$ 19,924	[9],[11]
Amortized Cost		17,428	[6]	19,979	[9]
Investments, at fair value		$ 17,457	[3],[6]	$ 20,007	[4],[9]
Investment, Identifier [Axis]: Proampac PG Borrower LLC, Materials
Schedule of Investments [Line Items]
Variable rate		4%	[5],[6]	4.50%	[8],[9]
Principal Amount		$ 22,828	[6],[7]	$ 20,000	[9],[11]
Amortized Cost		22,840	[6]	19,994	[9]
Investments, at fair value		22,890	[3],[6]	$ 20,062	[4],[9]
Investment, Identifier [Axis]: RPC TopCo Inc., Consumer Durables & Apparel 1
Schedule of Investments [Line Items]
Principal Amount	[7],[17]	21,970
Amortized Cost	[17]	21,599
Investments, at fair value	[3],[17]	21,640
Investment, Identifier [Axis]: RPC TopCo Inc., Consumer Durables & Apparel 2
Schedule of Investments [Line Items]
Principal Amount	[7],[17],[23]	3,030
Amortized Cost	[17],[23]	3,030
Investments, at fair value	[3],[17],[23]	$ 2,985
Investment, Identifier [Axis]: RealTruck Group, Inc, Automobiles & Components
Schedule of Investments [Line Items]
Variable rate	[5],[6]	3.50%
Principal Amount	[6],[7]	$ 24,756
Amortized Cost	[6]	24,025
Investments, at fair value	[3],[6]	24,398
Investment, Identifier [Axis]: Realtruck Group, Inc., Automobiles & Components
Schedule of Investments [Line Items]
Variable rate	[8],[9],[10]			3.50%
Principal Amount	[9],[10],[11]			$ 19,956
Amortized Cost	[9],[10]			19,117
Investments, at fair value	[4],[9],[10]			19,740
Investment, Identifier [Axis]: Revlon Intermediate Holdings IV LLC, Household & Personal Products
Schedule of Investments [Line Items]
Principal Amount	[6],[7]	15,000
Amortized Cost	[6]	15,036
Investments, at fair value	[3],[6]	$ 14,831
Investment, Identifier [Axis]: Ridgeback Resources Inc., Common Equity
Schedule of Investments [Line Items]
Investments, at fair value				$ 0		41,851
Investment, Identifier [Axis]: Ryan, LLC, Commercial & Professional Services 1
Schedule of Investments [Line Items]
Variable rate	[5],[6]	3.50%
Principal Amount	[6],[7]	$ 9,795
Amortized Cost	[6]	9,819
Investments, at fair value	[3],[6]	$ 9,701
Investment, Identifier [Axis]: Ryan, LLC, Commercial & Professional Services 2
Schedule of Investments [Line Items]
Variable rate	[5],[23]	3.50%
Principal Amount	[7],[23]	$ 1,036
Amortized Cost	[23]	1,036
Investments, at fair value	[3],[23]	1,026
Investment, Identifier [Axis]: Ryan, LLC, Commerical & Professional Services 1
Schedule of Investments [Line Items]
Variable rate	[8],[9],[10]			4.50%
Principal Amount	[9],[10],[11]			$ 9,844
Amortized Cost	[9],[10]			9,868
Investments, at fair value	[4],[9],[10]			$ 9,890
Investment, Identifier [Axis]: Ryan, LLC, Commerical & Professional Services 2
Schedule of Investments [Line Items]
Variable rate	[8],[10],[12]			4.50%
Principal Amount	[10],[11],[12]			$ 1,036
Amortized Cost	[10],[12]			1,039
Investments, at fair value	[4],[10],[12]			$ 1,041
Investment, Identifier [Axis]: SRS Distribution Inc., Capital Goods
Schedule of Investments [Line Items]
Variable rate	[8],[9],[10]			3.50%
Principal Amount	[9],[10],[11]			$ 19,924
Amortized Cost	[9],[10]			19,729
Investments, at fair value	[4],[9],[10]			19,982
Investment, Identifier [Axis]: ST EIP Holdings Inc., Energy—Midstream
Schedule of Investments [Line Items]
Principal Amount	[9],[11],[13]			10,365
Amortized Cost	[9],[13]			9,951
Investments, at fair value	[4],[9],[13]			9,874
Investment, Identifier [Axis]: ST EIP Holdings, Inc., Energy—Midstream
Schedule of Investments [Line Items]
Principal Amount	[6],[7],[17]	10,199
Amortized Cost	[6],[17]	9,834
Investments, at fair value	[3],[6],[17]	$ 9,828
Investment, Identifier [Axis]: SupplyOne, Inc., Materials
Schedule of Investments [Line Items]
Variable rate	[5],[6]	4.25%
Principal Amount	[6],[7]	$ 8,955
Amortized Cost	[6]	8,972
Investments, at fair value	[3],[6]	8,992
Investment, Identifier [Axis]: Sustainable Infrastructure Investments, LLC
Schedule of Investments [Line Items]
Investments, at fair value				39,427		51,098
Investment, Identifier [Axis]: Sustainable Infrastructure Investments, LLC 2
Schedule of Investments [Line Items]
Investments, at fair value		46,324		39,427
Investment, Identifier [Axis]: Sustainable Infrastructure Investments, LLC, Energy—Power
Schedule of Investments [Line Items]
Principal Amount		60,603	[7],[17],[19],[34]	60,603	[11],[13],[15],[21]
Amortized Cost		43,150	[17],[19],[34]	43,150	[13],[15],[21]
Investments, at fair value		$ 46,324	[3],[17],[19],[34]	$ 39,427	[4],[13],[15],[21]
Investment, Identifier [Axis]: TKC Holdings, Inc., Consumer Staples Distribution & Retail
Schedule of Investments [Line Items]
Variable rate		5.50%	[5],[6]	5.50%	[8],[9]
Principal Amount		$ 24,309	[6],[7]	$ 19,650	[9],[11]
Amortized Cost		23,381	[6]	18,681	[9]
Investments, at fair value		24,294	[3],[6]	18,830	[4],[9]
Investment, Identifier [Axis]: Telpico, LLC, Common Equity
Schedule of Investments [Line Items]
Investments, at fair value		0		0		0
Investment, Identifier [Axis]: Telpico, LLC, Common Equity, Energy—Upstream
Schedule of Investments [Line Items]
Amortized Cost		0	[17],[18],[24],[27]	0	[13],[16],[20],[33]
Investments, at fair value		0	[3],[17],[18],[24],[27]	0	[4],[13],[16],[20],[33]
Investment, Identifier [Axis]: Tenrgys, LLC, Common Equity, Energy—Upstream
Schedule of Investments [Line Items]
Amortized Cost		7,571	[17],[18],[24]	7,571	[13],[16],[20]
Investments, at fair value		$ 230	[3],[17],[18],[24]	$ 4,418	[4],[13],[16],[20]
Investment, Identifier [Axis]: Tenrgys, LLC, Energy—Upstream
Schedule of Investments [Line Items]
Variable rate		7.50%	[5],[6],[17]	7.50%	[8],[9],[13]
Principal Amount		$ 20,537	[6],[7],[17]	$ 20,537	[9],[11],[13]
Amortized Cost		20,537	[6],[17]	20,537	[9],[13]
Investments, at fair value		$ 20,049	[3],[6],[17]	$ 19,998	[4],[9],[13]
Investment, Identifier [Axis]: TruGreen, LP, Commercial & Professional Services
Schedule of Investments [Line Items]
Variable rate		4%	[5],[6]	4%	[8],[9]
Principal Amount		$ 24,718	[6],[7]	$ 19,910	[9],[11]
Amortized Cost		23,552	[6]	18,614	[9]
Investments, at fair value		23,964	[3],[6]	19,268	[4],[9]
Investment, Identifier [Axis]: U.S. Treasury Bills, U.S. Treasury Bills
Schedule of Investments [Line Items]
Principal Amount	[35]			21,000
Amortized Cost	[35]			20,994
Investments, at fair value	[4],[35]			21,000
Investment, Identifier [Axis]: USA Compression Partners, LP, Preferred Equity, Energy—Midstream
Schedule of Investments [Line Items]
Amortized Cost		28,190	[6],[17],[19]	78,091	[9],[13],[15]
Investments, at fair value		$ 32,068	[3],[6],[17],[19]	98,333	[4],[9],[13],[15]
Investment, Identifier [Axis]: United Natural Foods, Inc., Consumer Staples Distribution & Retail
Schedule of Investments [Line Items]
Variable rate	[5],[6],[19]	4.75%
Principal Amount	[6],[7],[19]	$ 20,948
Amortized Cost	[6],[19]	20,546
Investments, at fair value	[3],[6],[19]	21,052
Investment, Identifier [Axis]: Universal Entertainment Corp., Consumer Durables & Apparel
Schedule of Investments [Line Items]
Principal Amount	[7],[19]	9,625
Amortized Cost	[19]	9,533
Investments, at fair value	[3],[19]	$ 9,655
Investment, Identifier [Axis]: Upstream Newco, Inc., Health Care Equipment & Services
Schedule of Investments [Line Items]
Variable rate	[5],[6]	4.25%
Principal Amount	[6],[7]	$ 6,971
Amortized Cost	[6]	6,407
Investments, at fair value	[3],[6]	$ 6,069
Investment, Identifier [Axis]: WMK, LLC, Consumer Discretionary Distribution & Retail 1
Schedule of Investments [Line Items]
Variable rate	[5],[6],[17]	6.50%
Principal Amount	[6],[7],[17]	$ 31,050
Amortized Cost	[6],[17]	30,078
Investments, at fair value	[3],[6],[17]	$ 30,429
Investment, Identifier [Axis]: WMK, LLC, Consumer Discretionary Distribution & Retail 2
Schedule of Investments [Line Items]
Variable rate	[5],[17],[23]	6.50%
Principal Amount	[7],[17],[23]	$ 3,583
Amortized Cost	[17],[23]	3,583
Investments, at fair value	[3],[17],[23]	3,512
Investment, Identifier [Axis]: Warren Resources, Inc.
Schedule of Investments [Line Items]
Investments, at fair value		0		23,823		23,584
Investment, Identifier [Axis]: Warren Resources, Inc., Common Equity
Schedule of Investments [Line Items]
Investments, at fair value		0		15,566		$ 36,982
Investment, Identifier [Axis]: Warren Resources, Inc., Common Equity, Energy—Upstream
Schedule of Investments [Line Items]
Amortized Cost	[13],[16],[21]			20,754
Investments, at fair value	[4],[13],[16],[21]			$ 15,566
Investment, Identifier [Axis]: Warren Resources, Inc., Energy—Upstream
Schedule of Investments [Line Items]
Variable rate	[8],[9],[13],[21]			9%
Principal Amount		31,163	[7],[17]	$ 23,823	[9],[11],[13],[21]
Amortized Cost		27,951	[17]	23,823	[9],[13],[21]
Investments, at fair value		$ 26,683	[3],[17]	$ 23,823	[4],[9],[13],[21]
Investment, Identifier [Axis]: Wattbridge Inc., Energy—Power
Schedule of Investments [Line Items]
Variable rate	[8],[9],[13]			9.85%
Principal Amount	[9],[11],[13]			$ 42,938
Amortized Cost	[9],[13]			42,938
Investments, at fair value	[4],[9],[13]			$ 41,882
Investment, Identifier [Axis]: Weber-Stephen Products LLC, Consumer Durables & Apparel
Schedule of Investments [Line Items]
Variable rate	[5],[6]	3.25%
Principal Amount	[6],[7]	$ 26,119
Amortized Cost	[6]	24,094
Investments, at fair value	[3],[6]	$ 24,708
Investment, Identifier [Axis]: WildBrain Ltd., Media & Entertainment 1
Schedule of Investments [Line Items]
Variable rate	[5],[17],[19]	6%
Principal Amount	[7],[17],[19]	$ 1,771
Amortized Cost	[17],[19]	1,705
Investments, at fair value	[3],[17],[19]	$ 1,736
Investment, Identifier [Axis]: WildBrain Ltd., Media & Entertainment 2
Schedule of Investments [Line Items]
Variable rate	[5],[6],[17],[19]	6%
Principal Amount	[6],[7],[17],[19]	$ 31,547
Amortized Cost	[6],[17],[19]	30,942
Investments, at fair value	[3],[6],[17],[19]	$ 30,916
Investment, Identifier [Axis]: WildBrain Ltd., Media & Entertainment 3
Schedule of Investments [Line Items]
Variable rate	[5],[17],[19],[23]	6%
Principal Amount	[7],[17],[19],[23]	$ 1,602
Amortized Cost	[17],[19],[23]	1,602
Investments, at fair value	[3],[17],[19],[23]	1,570
Sustainable Infrastructure Investments, LLC
Schedule of Investments [Line Items]
Variable rate				5.33%
Principal Amount		104,101		$ 170,083
Amortized Cost		104,101		170,083
Investments, at fair value		$ 104,101		$ 170,949
Percent of net assets		100%		100%
Sustainable Infrastructure Investments, LLC | Net Senior Secured Loans—First Lien
Schedule of Investments [Line Items]
Amortized Cost		$ 104,101		$ 170,083
Investments, at fair value		$ 104,101		$ 170,949
Percent of net assets		100%		100%
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: Blue Heron Intermediate Holdco I, LLC, Midstream
Schedule of Investments [Line Items]
Variable rate				1.88%
Principal Amount				$ 30,661
Amortized Cost				30,661
Investments, at fair value				$ 30,692
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: Copper Mountain Solar 3, LLC, Renewables
Schedule of Investments [Line Items]
Variable rate				1.88%
Principal Amount				$ 16,104
Amortized Cost				16,104
Investments, at fair value				$ 16,172
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: FLNG Liquefaction 2, LLC, Midstream
Schedule of Investments [Line Items]
Variable rate		1.50%		1.50%
Principal Amount		$ 25,052		$ 26,567
Amortized Cost		25,052		26,567
Investments, at fair value		25,052		26,557
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: Largest Portfolio Company Investment
Schedule of Investments [Line Items]
Principal Amount		$ 55,422		$ 57,227
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: NES Hercules Class B Member, LLC, Renewables
Schedule of Investments [Line Items]
Variable rate		1.78%		1.63%
Principal Amount		$ 23,627		$ 24,176
Amortized Cost		23,627		24,176
Investments, at fair value		$ 23,627		$ 24,769
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: ST EIP Holdco LLC, Midstream
Schedule of Investments [Line Items]
Variable rate		2.50%		2.50%
Principal Amount		$ 55,422		$ 57,227
Amortized Cost		55,422		57,227
Investments, at fair value		$ 55,422		$ 57,143
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: Seine Funding, LLC
Schedule of Investments [Line Items]
Variable rate							1.20%
Principal Amount							$ 634,103
Sustainable Infrastructure Investments, LLC | Investment, Identifier [Axis]: Top of the World Wind Energy LLC, Renewables
Schedule of Investments [Line Items]
Variable rate				2.13%
Principal Amount				$ 15,348
Amortized Cost				15,348
Investments, at fair value				$ 15,616
[1]Security may be an obligation of one or more entities affiliated with the named company.[2]Security may be an obligation of one or more entities affiliated with the named company.[3]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.[4]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.[5]Certain variable rate securities in the Company’s portfolio bear interest at a rate determined by a publicly disclosed base rate plus a basis point spread. As of September 30, 2024, the one-month and three-month Secured Overnight Financing Rate, or SOFR, or S, was 4.85% and 4.59%, respectively, and the Overnight Bank Funding Rate, or OBFR, was 4.83%. SOFR based contracts may include a credit spread adjustment that is charged in addition to the base rate and basis point spread. PIK means paid-in-kind. PIK income accruals may be adjusted based on the fair value of the underlying investment. Variable rate securities with no floor rate use the respective benchmark rate in all cases.[6]Security or portion thereof held within FSSL Finance BB AssetCo LLC, a wholly-owned subsidiary of the Company, and is pledged as collateral supporting the obligations outstanding under the repurchase facility with Barclays Bank PLC (see Note 9).[7]Denominated in U.S. dollars, unless otherwise noted.[8]Certain variable rate securities in the Company’s portfolio bear interest at a rate determined by a publicly disclosed base rate plus a basis point spread. As of December 31, 2023, the one-month and three-month Secured Overnight Financing Rate, or SOFR, or S, was 5.35% and 5.33%, respectively, and the Overnight Bank Funding Rate, or OBFR, was 5.32%. SOFR based contracts may include a credit spread adjustment that is charged in addition to the base rate and basis point spread. PIK means paid-in-kind. PIK income accruals may be adjusted based on the fair value of the underlying investment. Variable rate securities with no floor rate use the respective benchmark rate in all cases. Portfolio Company Fair Value at December 31, 2022 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at December 31, 2023 Interest Income (3) PIK Income (3) Dividend Income (3) Senior Secured Loans—First Lien Allied Downhole Technologies, LLC $ 8,436 $ 138 $ (8,574) $ — $ — $ — $ 256 $ 139 $ — Allied Wireline Services, LLC 63,888 6,389 — — (48,077) 22,200 — 2,910 — Warren Resources, Inc. 23,584 239 — — — 23,823 3,464 179 — Sustainable Infrastructure Investments, LLC Sustainable Infrastructure Investments, LLC 51,098 — (11,364) — (307) 39,427 — — 8,324 Equity/Other Allied Wireline Services, LLC, Common Equity 10,463 — — — (10,463) — — — — Allied Wireline Services, LLC, Warrants — — — — — — — — — Warren Resources, Inc., Common Equity 36,982 — — — (21,416) 15,566 — — — $ 194,451 $ 6,766 $ (19,938) $ — $ (80,263) $ 101,016 $ 3,720 $ 3,228 $ 8,324 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest, PIK and dividend income presented for the year ended December 31, 2023. Portfolio Company Fair Value at December 31, 2023 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at September 30, 2024 Interest Income (3) PIK Income (3) Senior Secured Loans—First Lien Permian Production Holdings, LLC $ 4,816 $ 161 $ (2,045) $ 148 $ (234) $ 2,846 $ 378 $ 63 Asset Based Finance Bridge Street CLO IV Ltd., Subordinated Notes — 23,711 (222) — (1,909) 21,580 1,776 — Bridge Street Warehouse CLO IV Ltd. — 22,729 (22,729) — — — — 729 Bridge Street Warehouse CLO V Ltd. — 5,036 — — — 5,036 — 36 Equity/Other GWP Midstream Holdco, LLC, Common Equity 1,661 — — — 717 2,378 — — Harvest Oil & Gas Corp., Common Equity 271 — — — 94 365 — — Permian Production Holdings, LLC, Common Equity 748 — — — (748) — — — Telpico, LLC, Common Equity — — — — — — — — $ 7,496 $ 51,637 $ (24,996) $ 148 $ (2,080) $ 32,205 $ 2,154 $ 828 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest and PIK income presented for the nine months ended September 30, 2024. Portfolio Company Fair Value at December 31, 2022 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at December 31, 2023 Interest Income (3) PIK Income (3) Senior Secured Loans—First Lien Permian Production Holdings, LLC $ 4,767 $ 231 $ — $ — $ (182) $ 4,816 $ 675 $ 97 Equity/Other GWP Midstream Holdco, LLC, Common Equity 5,044 — (3,112) 3,112 (3,383) 1,661 — — Harvest Oil & Gas Corp., Common Equity 810 — (641) — 102 271 — — Limetree Bay Energy, LLC, Class A Units 1,885 246 — (21,704) 19,573 — — — Permian Production Holdings, LLC, Common Equity 11,420 — — — (10,672) 748 — — Ridgeback Resources Inc., Common Equity 41,851 — (35,240) (11,359) 4,748 — — — Telpico, LLC, Common Equity — — — — — — — — $ 65,777 $ 477 $ (38,993) $ (29,951) $ 10,186 $ 7,496 $ 675 $ 97 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest and PIK income presented for the year ended December 31, 2023. Portfolio Company Fair Value at December 31, 2023 Gross Additions (1) Gross Reductions (2) Net Realized Gain (Loss) Net Change in Unrealized Appreciation (Depreciation) Fair Value at September 30, 2024 Interest Income (3) PIK Income (3) Senior Secured Loans—First Lien Allied Wireline Services, LLC $ 22,200 $ — $ (19,282) $ (50,995) $ 48,077 $ — $ — $ — Warren Resources, Inc. 23,823 60 (20,357) (3,526) — — 1,508 60 Sustainable Infrastructure Investments, LLC Sustainable Infrastructure Investments, LLC 39,427 — — — 6,897 46,324 — — Equity/Other Allied Wireline Services, LLC, Common Equity — — — (1,527) 1,527 — — — Allied Wireline Services, LLC, Warrants — — — — — — — — Warren Resources, Inc., Common Equity 15,566 127 (13,578) (7,303) 5,188 — — — $ 101,016 $ 187 $ (53,217) $ (63,351) $ 61,689 $ 46,324 $ 1,508 $ 60 _____________ (1) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company into this category from a different category. (2) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and/or the movement of an existing portfolio company out of this category into a different category. (3) Interest and PIK income presented for the nine months ended September 30, 2024.

Investment Portfolio - Balance

Investment Portfolio - Balance Sheet Information for SIIJV (Details) - USD ($) $ in Thousands	Sep. 30, 2024		Jun. 30, 2024	Dec. 31, 2023		Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Schedule of Investments [Line Items]
Investments, at fair value	$ 1,692,052	[1],[2]		$ 1,523,196	[3],[4]
Cash and other assets	235,083	[1],[2],[5]		486,059	[3],[4],[6]	$ 289,738
Total assets	1,986,320			2,059,557
Total liabilities	431,331			497,502
Members' equity	1,554,989		$ 1,580,644	1,562,055		$ 1,657,461	$ 1,679,723	$ 1,753,748
Sustainable Infrastructure Investments, LLC
Schedule of Investments [Line Items]
Investments, at fair value	104,101			170,949
Cash and other assets	34,501			29,089
Total assets	138,602			200,038
Debt	84,121			145,483
Other liabilities	1,539			3,406
Total liabilities	85,660			148,889
Members' equity	$ 52,942			$ 51,149
[1]Security may be an obligation of one or more entities affiliated with the named company.[2]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.[3]Security may be an obligation of one or more entities affiliated with the named company.[4]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.[5]Includes $33,275 held in Allspring Government Money Market Fund with a 7-day yield of 4.86% as of September 30, 2024.[6]Includes $23,098 held in Allspring Government Money Market Fund with a 7-day yield of 5.3% as of December 31, 2023.

Investment Portfolio - Operatio

Investment Portfolio - Operations Information for SIIJV (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Schedule of Investments [Line Items]
Total investment income	$ 52,738	$ 30,443	$ 172,274	$ 115,014
Administrative services	1,552	1,887	4,622	4,566
Custodian and accounting fees	929	820	2,767	2,365
Professional services	148	82	452	444
Net expenses	21,690	12,891	65,753	57,088
Net investment income before taxes	31,048	17,552	106,521	57,926
Net realized and unrealized gain (loss)	(17,097)	(44,141)	(32,176)	(140,404)
Sustainable Infrastructure Investments, LLC
Schedule of Investments [Line Items]
Total investment income	2,572	5,272	8,835	15,083
Interest expense	1,484	3,410	5,364	9,870
Administrative services	66	46	130	134
Custodian and accounting fees	83	58	174	161
Professional services	41	70	117	170
Other	5	11	26	31
Net expenses	1,679	3,595	5,811	10,366
Net investment income before taxes	893	1,677	3,024	4,717
Net realized and unrealized gain (loss)	1	(2,273)	(1,231)	(937)
Net increase (decrease) in net assets resulting from operations	$ 894	$ (596)	$ 1,793	$ 3,780

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Schedule of Fair Value Hierarchy Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2024		Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, at fair value	$ 1,692,052	[1],[2]	$ 1,523,196	[3],[4]
Level 1—Price quotations in active markets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, at fair value	0		0
Level 2—Significant other observable inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, at fair value	953,879		683,716
Level 3—Significant unobservable inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, at fair value	$ 738,173		$ 839,480
[1]Security may be an obligation of one or more entities affiliated with the named company.[2]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.[3]Security may be an obligation of one or more entities affiliated with the named company.[4]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Schedule of Assets and Liabilities Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	$ 0	$ 0
Derivative Liabilities	13	0
Level 1—Price quotations in active markets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0
Derivative Liabilities	0	0
Level 2—Significant other observable inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0
Derivative Liabilities	13	0
Level 3—Significant unobservable inputs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	0	0
Derivative Liabilities	$ 0	$ 0

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Schedule of Reconciliation Fair Value, Assets (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Accretion of discount (amortization of premium)	$ 6,882	$ 4,484
Total
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	839,480	1,594,205
Accretion of discount (amortization of premium)	1,958	3,452
Purchases	393,997	65,563
Paid-in-kind interest	8,117	14,174
Sales and repayments	(453,764)	(354,036)
Transfers into Level 3	271	810
Transfers out of Level 3	0	0
Fair value at end of period	738,173	1,177,359
The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date	(98,486)	(135,242)
Total | Net realized gain (loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss)	(8,813)	(49,602)
Total | Net change in unrealized appreciation (depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss)	(43,073)	(97,207)
Senior Secured Loans—First Lien
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	237,307	443,245
Accretion of discount (amortization of premium)	911	1,369
Purchases	244,536	65,317
Paid-in-kind interest	1,597	9,834
Sales and repayments	(155,051)	(76,948)
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Fair value at end of period	326,335	392,383
The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date	(641)	(50,106)
Senior Secured Loans—First Lien | Net realized gain (loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss)	(48,727)	(2,864)
Senior Secured Loans—First Lien | Net change in unrealized appreciation (depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss)	45,762	(47,570)
Senior Secured Loans—Second Lien
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	54,424	143,270
Accretion of discount (amortization of premium)	182	710
Purchases	26,540	0
Paid-in-kind interest	3,240	0
Sales and repayments	(3,000)	(73,544)
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Fair value at end of period	81,820	69,599
The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date	446	(591)
Senior Secured Loans—Second Lien | Net realized gain (loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss)	(12)	(52)
Senior Secured Loans—Second Lien | Net change in unrealized appreciation (depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss)	446	(785)
Senior Secured Bonds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	9,874	10,074
Accretion of discount (amortization of premium)	356	38
Purchases	34,271	0
Paid-in-kind interest	418	0
Sales and repayments	(3,692)	(107)
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Fair value at end of period	36,511	9,780
The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date	(1,197)	(229)
Senior Secured Bonds | Net realized gain (loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss)	(3,519)	4
Senior Secured Bonds | Net change in unrealized appreciation (depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss)	(1,197)	(229)
Subordinated Debt
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	0	54,374
Accretion of discount (amortization of premium)	0	105
Purchases	35,182	0
Paid-in-kind interest	2,097	4,340
Sales and repayments	0	(1,500)
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Fair value at end of period	38,103	57,743
The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date	824	416
Subordinated Debt | Net realized gain (loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss)	0	8
Subordinated Debt | Net change in unrealized appreciation (depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss)	824	416
Asset Based Finance
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	0
Accretion of discount (amortization of premium)	0
Purchases	50,711
Paid-in-kind interest	765
Sales and repayments	(22,951)
Transfers into Level 3	0
Transfers out of Level 3	0
Fair value at end of period	26,616
The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date	(1,909)
Asset Based Finance | Net realized gain (loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss)	0
Asset Based Finance | Net change in unrealized appreciation (depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss)	(1,909)
Sustainable Infrastructure Investments, LLC
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	39,427	51,098
Accretion of discount (amortization of premium)	0	0
Purchases	0	0
Paid-in-kind interest	0	0
Sales and repayments	0	0
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Fair value at end of period	46,324	49,192
The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date	6,897	(1,906)
Sustainable Infrastructure Investments, LLC | Net realized gain (loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss)	0	0
Sustainable Infrastructure Investments, LLC | Net change in unrealized appreciation (depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss)	6,897	(1,906)
Equity/Other
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value at beginning of period	498,448	892,144
Accretion of discount (amortization of premium)	509	1,230
Purchases	2,757	246
Paid-in-kind interest	0	0
Sales and repayments	(269,070)	(201,937)
Transfers into Level 3	271	810
Transfers out of Level 3	0	0
Fair value at end of period	182,464	598,662
The amount of total gains or losses for the period included in changes in net assets attributable to the change in unrealized gains or losses relating to investments still held at the reporting date	(102,906)	(82,826)
Equity/Other | Net realized gain (loss)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss)	43,445	(46,698)
Equity/Other | Net change in unrealized appreciation (depreciation)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net realized gain (loss)	$ (93,896)	$ (47,133)

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Schedule of Valuation Techniques and Significant Unobservable Inputs Used in Recurring Level 3 Fair Value (Details) $ in Thousands	Sep. 30, 2024 USD ($) Bcfe MMBoe / d MMcfe / d		Dec. 31, 2023 USD ($) MMcfe / d
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value	$ 1,692,052	[1],[2]	$ 1,523,196	[3],[4]
Level 3—Significant unobservable inputs
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value	738,173		839,480
Level 3—Significant unobservable inputs | Net Senior Secured Loans—First Lien | Market Comparables
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value	$ 291,832		$ 212,250
Level 3—Significant unobservable inputs | Net Senior Secured Loans—First Lien | Market Comparables | Minimum | Market Yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.078		0.082
Level 3—Significant unobservable inputs | Net Senior Secured Loans—First Lien | Market Comparables | Minimum | EBITDA Multiples
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	5.3		3.9
Level 3—Significant unobservable inputs | Net Senior Secured Loans—First Lien | Market Comparables | Maximum | Market Yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.198		0.205
Level 3—Significant unobservable inputs | Net Senior Secured Loans—First Lien | Market Comparables | Maximum | EBITDA Multiples
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	5.8		4.6
Level 3—Significant unobservable inputs | Net Senior Secured Loans—First Lien | Market Comparables | Weighted Average | Market Yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.099		0.136
Level 3—Significant unobservable inputs | Net Senior Secured Loans—First Lien | Market Comparables | Weighted Average | EBITDA Multiples
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	5.5		4.4
Level 3—Significant unobservable inputs | Net Senior Secured Loans—First Lien | Cost
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value	$ 12,495
Level 3—Significant unobservable inputs | Net Senior Secured Loans—First Lien | Other
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value	22,008		$ 20,250
Level 3—Significant unobservable inputs | Net Senior Secured Loans—First Lien | Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value			$ 4,807
Level 3—Significant unobservable inputs | Net Senior Secured Loans—First Lien | Discounted Cash Flow | Minimum | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input			0.090
Level 3—Significant unobservable inputs | Net Senior Secured Loans—First Lien | Discounted Cash Flow | Maximum | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input			0.130
Level 3—Significant unobservable inputs | Net Senior Secured Loans—First Lien | Discounted Cash Flow | Weighted Average | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input			0.108
Level 3—Significant unobservable inputs | Net Senior Secured Loans—Second Lien | Market Comparables
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value	$ 81,820		$ 54,424
Level 3—Significant unobservable inputs | Net Senior Secured Loans—Second Lien | Market Comparables | Minimum | Market Yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.115		0.125
Level 3—Significant unobservable inputs | Net Senior Secured Loans—Second Lien | Market Comparables | Maximum | Market Yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.185		0.140
Level 3—Significant unobservable inputs | Net Senior Secured Loans—Second Lien | Market Comparables | Weighted Average | Market Yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.146		0.131
Level 3—Significant unobservable inputs | Senior Secured Bonds | Market Comparables
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value	$ 36,511		$ 9,874
Level 3—Significant unobservable inputs | Senior Secured Bonds | Market Comparables | Minimum | Market Yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.076		0.075
Level 3—Significant unobservable inputs | Senior Secured Bonds | Market Comparables | Maximum | Market Yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.120		0.085
Level 3—Significant unobservable inputs | Senior Secured Bonds | Market Comparables | Weighted Average | Market Yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.106		0.080
Level 3—Significant unobservable inputs | Subordinated Debt | Market Comparables
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value	$ 38,103
Level 3—Significant unobservable inputs | Subordinated Debt | Market Comparables | Minimum | Market Yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.112
Level 3—Significant unobservable inputs | Subordinated Debt | Market Comparables | Maximum | Market Yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.117
Level 3—Significant unobservable inputs | Subordinated Debt | Market Comparables | Weighted Average | Market Yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.115
Level 3—Significant unobservable inputs | Asset Based Finance | Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value	$ 21,580
Level 3—Significant unobservable inputs | Asset Based Finance | Discounted Cash Flow | Minimum | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.169
Level 3—Significant unobservable inputs | Asset Based Finance | Discounted Cash Flow | Maximum | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.179
Level 3—Significant unobservable inputs | Asset Based Finance | Discounted Cash Flow | Weighted Average | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.174
Level 3—Significant unobservable inputs | Asset Based Finance | Income
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value	$ 5,036
Level 3—Significant unobservable inputs | Asset Based Finance | Income | Minimum | Excess Spread
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.043
Level 3—Significant unobservable inputs | Asset Based Finance | Income | Maximum | Excess Spread
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.043
Level 3—Significant unobservable inputs | Asset Based Finance | Income | Weighted Average | Excess Spread
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.043
Level 3—Significant unobservable inputs | Sustainable Infrastructure Investments, LLC | Other
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value	$ 46,324
Level 3—Significant unobservable inputs | Sustainable Infrastructure Investments, LLC | Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value			$ 39,427
Level 3—Significant unobservable inputs | Sustainable Infrastructure Investments, LLC | Discounted Cash Flow | Minimum | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input			0.080
Level 3—Significant unobservable inputs | Sustainable Infrastructure Investments, LLC | Discounted Cash Flow | Maximum | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input			0.100
Level 3—Significant unobservable inputs | Sustainable Infrastructure Investments, LLC | Discounted Cash Flow | Weighted Average | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input			0.090
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value	$ 109,910		$ 311,150
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Minimum | Market Yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.100		0.100
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Minimum | EBITDA Multiples
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	2		2.7
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Minimum | Net Aircraft Book Value Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	1,000		1
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Minimum | Production Multiples (MMcfe/d)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input | MMcfe / d	2,700		3,000
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Minimum | Proved Reserves Multiples (Bcfe)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.7		0.7
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Minimum | PV-10 Multiples
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	1.6		0.3
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Maximum | Market Yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.173		0.230
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Maximum | EBITDA Multiples
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	9.3		13
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Maximum | Net Aircraft Book Value Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	1,100		1.1
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Maximum | Production Multiples (MMcfe/d)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input | MMcfe / d	3,100		3,600
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Maximum | Proved Reserves Multiples (Bcfe)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.7		0.7
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Maximum | PV-10 Multiples
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	1.8		0.4
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Weighted Average | Market Yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.138		0.175
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Weighted Average | EBITDA Multiples
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	6.3		6
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Weighted Average | Net Aircraft Book Value Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	1		1
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Weighted Average | Production Multiples (MMcfe/d)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input | MMcfe / d	2,900		3,300
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Weighted Average | Proved Reserves Multiples (Bcfe)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.7		0.7
Level 3—Significant unobservable inputs | Equity/Other | Market Comparables | Weighted Average | PV-10 Multiples
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	1.7		0.3
Level 3—Significant unobservable inputs | Equity/Other | Other
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value	$ 3,579		$ 13,231
Level 3—Significant unobservable inputs | Equity/Other | Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value	$ 67,240		$ 166,946
Level 3—Significant unobservable inputs | Equity/Other | Discounted Cash Flow | Minimum | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.080		0.080
Level 3—Significant unobservable inputs | Equity/Other | Discounted Cash Flow | Maximum | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.120		0.171
Level 3—Significant unobservable inputs | Equity/Other | Discounted Cash Flow | Weighted Average | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.100		0.165
Level 3—Significant unobservable inputs | Equity/Other | Option Valuation Model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Investments, at fair value	$ 1,735		$ 7,121
Level 3—Significant unobservable inputs | Equity/Other | Option Valuation Model | Minimum | Volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.500		0.550
Level 3—Significant unobservable inputs | Equity/Other | Option Valuation Model | Maximum | Volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.600		0.650
Level 3—Significant unobservable inputs | Equity/Other | Option Valuation Model | Weighted Average | Volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Measurement input	0.550		0.600
[1]Security may be an obligation of one or more entities affiliated with the named company.[2]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.[3]Security may be an obligation of one or more entities affiliated with the named company.[4]See Note 8 for additional information regarding the fair value of the Company’s financial instruments.

Financing Arrangement - Schedul

Financing Arrangement - Schedule of Outstanding Financing Arrangements (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Sep. 06, 2023	May 15, 2023
Debt Instrument [Line Items]
Average outstanding	8.43%		11.03%		7.49%
Barclays Facility | Line of Credit
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	3%	3%
Amount Outstanding	$ 400,000	$ 400,000
Amount Available	$ 100,000	$ 100,000
Debt instrument, variable rate floor	0%	0%
Average outstanding	3%	3%		3%

Financing Arrangement - Sched_2

Financing Arrangement - Schedule of Interest Expense (Details) - USD ($) $ in Thousands		4 Months Ended	9 Months Ended
	May 15, 2023	May 15, 2023	Sep. 30, 2024	Sep. 30, 2023
Short-Term Debt [Line Items]
Direct Interest Expense			$ 25,655	$ 16,163
Amortization of Deferred Financing Costs			1,555	2,903
Total Interest Expense			27,210	19,066
Secured Debt | Debt Instrument, Redemption, Period One
Short-Term Debt [Line Items]
Redemption percentage	100%
Senior Notes
Short-Term Debt [Line Items]
Redemption percentage		100%
Senior Notes | Debt Instrument, Redemption, Period One
Short-Term Debt [Line Items]
Redemption percentage	100%
Senior Notes | Debt Instrument, Redemption, Period Two
Short-Term Debt [Line Items]
Redemption percentage	100%
Barclays Facility | Line of Credit
Short-Term Debt [Line Items]
Direct Interest Expense			25,655	613
Amortization of Deferred Financing Costs			1,555	125
Total Interest Expense			27,210	738
JPMorgan Facility | Line of Credit
Short-Term Debt [Line Items]
Direct Interest Expense			0	2,790
Amortization of Deferred Financing Costs			0	238
Total Interest Expense			0	3,028
Senior Secured Notes | Secured Debt
Short-Term Debt [Line Items]
Direct Interest Expense			0	12,760
Amortization of Deferred Financing Costs			0	2,540
Total Interest Expense			$ 0	$ 15,300

Financing Arrangement - Narrati

Financing Arrangement - Narrative (Details)				1 Months Ended	4 Months Ended		9 Months Ended	12 Months Ended
	Sep. 06, 2023 USD ($) subsidiary	May 15, 2023	Feb. 14, 2023 USD ($)	Sep. 30, 2023 USD ($)	Sep. 05, 2023 USD ($)	May 15, 2023 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2023	Aug. 16, 2018 USD ($)
Debt Instrument [Line Items]
Amount outstanding				$ 80,000,000	$ 0	$ 557,446,000	$ 400,000,000
Average outstanding		7.49%		11.03%		7.49%	8.43%
Debt instrument, interest rate, effective percentage				8.90%			8.35%
Number of finance subsidiaries | subsidiary	2
Secured Debt | Debt Instrument, Redemption, Period One
Debt Instrument [Line Items]
Redemption percentage		100%
Senior Notes
Debt Instrument [Line Items]
Redemption percentage						100%
Senior Notes | Debt Instrument, Redemption, Period One
Debt Instrument [Line Items]
Redemption percentage		100%
Senior Notes | Debt Instrument, Redemption, Period Two
Debt Instrument [Line Items]
Redemption percentage		100%
Barclays Facility | Secured Overnight Financing Rate (SOFR) | Minimum
Debt Instrument [Line Items]
Average outstanding	1.90%
Barclays Facility | Secured Overnight Financing Rate (SOFR) | Maximum
Debt Instrument [Line Items]
Average outstanding	4.20%
Barclays Facility | Line of Credit
Debt Instrument [Line Items]
Average outstanding	3%						3%	3%
Maximum aggregate purchase price	$ 500,000
Debt instrument, variable rate floor							0%	0%
Initial purchase price							$ 400,000
Aggregate principal amount							400,000
Facilities payable							395,992,000
Deferred financing costs	$ 6,199,000						$ 4,008,000
Basis spread on variable rate (percent)							3%	3%
Barclays Facility | Line of Credit | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Debt instrument, variable rate floor	0%
JPMorgan Facility | Line of Credit
Debt Instrument [Line Items]
Debt instrument, variable rate floor			0%
Principal amount outstanding			$ 305,676,000
JPMorgan Facility | Line of Credit | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate (percent)			3%
Senior Secured Notes | Secured Debt
Debt Instrument [Line Items]
Principal amount outstanding									$ 500,000,000
Stated interest rate									7.50%

Financial Highlights (Details)

Financial Highlights (Details) $ / shares in Units, $ in Thousands	3 Months Ended							6 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2024 USD ($) $ / shares shares	Jun. 30, 2024 USD ($) $ / shares	Mar. 31, 2024 $ / shares	Dec. 31, 2023 USD ($) $ / shares shares	Sep. 30, 2023 USD ($) $ / shares	Jun. 30, 2023 USD ($) $ / shares	Mar. 31, 2023 $ / shares	Jun. 30, 2024 USD ($) $ / shares	Sep. 30, 2024 USD ($) $ / shares shares	Sep. 30, 2023 USD ($) $ / shares	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($)
Investment Company, Financial Highlights [Roll Forward]
Net asset value, beginning of period (in USD per Share)			$ 3.43				$ 3.88	$ 3.43	$ 3.43	$ 3.88	$ 3.88
Results of operations
Net investment income (in USD per share)									0.23		0.18
Net realized gain (loss) and unrealized appreciation (depreciation) (in USD per share)									(0.07)		(0.44)
Net increase (decrease) in net assets resulting from operations (in USD per share)									0.16		(0.26)
Shareholder distributions
Distributions from net investment income (in USD per share)									(0.18)		(0.19)
Net decrease in net assets resulting from shareholder distributions (in USD per share)	$ (0.0867)	$ (0.0866)	$ (0.0034)	$ (0.0643)	$ 0	$ (0.0300)	$ (0.0300)		(0.1767)	$ (0.0600)	(0.19)
Capital share transactions
Issuance of common shares (in USD per share)									0		0
Net increase (decrease) in net assets resulting from capital share transactions (in USD per share)									0		0
Net asset value, end of period (in USD per share)	$ 3.41			$ 3.43					$ 3.41		$ 3.43
Shares outstanding, end of period (in shares) | shares	455,506,155			455,506,155					455,506,155		455,506,155
Total return									4.59%		(6.89%)
Total return (without assuming reinvestment of distributions)									4.57%		(6.70%)
Ratio/Supplemental Data:
Net assets, end of period | $	$ 1,554,989	$ 1,580,644		$ 1,562,055	$ 1,657,461	$ 1,679,723		$ 1,580,644	$ 1,554,989	$ 1,657,461	$ 1,562,055	$ 1,753,748
Ratio of net investment income to average net assets									8.96%		4.77%
Ratio of total operating expenses to average net assets									5.66%		4.50%
Ratio of management fee offset to average net assets									(0.00%)		(0.02%)
Ratio of net operating expenses to average net assets									5.66%		4.48%
Ratio of interest expense to average net assets									2.31%		1.39%
Ratio of federal and state taxes to average net assets								0.15%	0.08%
Portfolio turnover									47.08%		45.84%
Total amount of senior securities outstanding, exclusive of treasury securities | $	$ 400,000			$ 400,000					$ 400,000		$ 400,000
Asset coverage per unit (in USD per share)	$ 4,887			$ 4,905					$ 4,887		$ 4,905
Asset coverage ratio	4.89			4.91					4.89		4.91
Ratio of net investment income to average net assets if advisor had not agreement to offset management fee payable									8.96%		4.75%