Consolidated Schedule of Investments (Parenthetical) - USD ($) $ in Thousands		3 Months Ended		12 Months Ended
		Dec. 31, 2022		Sep. 30, 2023		Sep. 30, 2022		Sep. 30, 2021
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1]	$ 5,446,356		$ 5,446,356
Net realized gain (loss)				(46,496)		$ 18,925		$ 13,006
Investments, at fair value, ending balance				5,516,613	[2]	5,446,356	[1]
Investment, Identifier [Axis]: 3ES Innovation, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[5],[6]	20,419		20,419
Investments, at fair value, ending balance				20,210	[2],[7],[8],[9],[10]	20,419	[1],[3],[4],[5],[6]
Investment, Identifier [Axis]: 3ES Innovation, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6]	80		80
Investments, at fair value, ending balance				80	[2],[7],[9],[10]	80	[1],[3],[5],[6]
Investment, Identifier [Axis]: AAH TOPCO, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8,079		8,079
Investments, at fair value, ending balance				7,997	[2],[7]	8,079	[1],[3]
Investment, Identifier [Axis]: AAH TOPCO, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance				(2)	[2],[7],[12]	(2)	[1],[3],[11]
Investment, Identifier [Axis]: AAH TOPCO, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	175		175
Investments, at fair value, ending balance				454	[2],[7]	175	[1],[3]
Investment, Identifier [Axis]: AAH TOPCO, LLC, Subordinated debt
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,026		1,026
Investments, at fair value, ending balance				1,114	[2],[7],[13]	1,026	[1],[3]
Investment, Identifier [Axis]: ACP Ulysses Buyer, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	25,106		25,106
Investments, at fair value, ending balance				23,970	[2],[8],[15]	25,106	[1],[3],[4],[14]
Investment, Identifier [Axis]: ACP Ulysses Buyer, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,086		1,086
Investments, at fair value, ending balance				1,036	[2],[8]	1,086	[1],[3]
Investment, Identifier [Axis]: ADCS Clinics Intermediate Holdings, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: ADCS Clinics Intermediate Holdings, LLC, Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,402		1,402
Investments, at fair value, ending balance				1,562	[2],[7]	1,402	[1],[3]
Investment, Identifier [Axis]: ALKU Intermediate Holdings, LLC, One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			4,389
Investment, Identifier [Axis]: AMBA Buyer, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,157		3,157
Investments, at fair value, ending balance				3,125	[2],[7]	3,157	[1],[3]
Investment, Identifier [Axis]: AMBA Buyer, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	940		940
Investments, at fair value, ending balance				930	[2],[7]	940	[1],[3]
Investment, Identifier [Axis]: AMBA Buyer, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	782		782
Investments, at fair value, ending balance				774	[2],[7]	782	[1],[3]
Investment, Identifier [Axis]: AMBA Buyer, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				4	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: AMBA Buyer, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance				(1)	[2],[7],[12]	(1)	[1],[3],[11]
Investment, Identifier [Axis]: AVG Intermediate Holdings & AVG Subsidiary Holdings LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	154		154
Investments, at fair value, ending balance				202	[2],[7]	154	[1],[3]
Investment, Identifier [Axis]: AVG Intermediate Holdings & AVG Subsidiary Holdings LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,505		4,505
Investments, at fair value, ending balance				4,661	[2],[7]	4,505	[1],[3]
Investment, Identifier [Axis]: AVG Intermediate Holdings & AVG Subsidiary Holdings LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,766		3,766
Investments, at fair value, ending balance				3,896	[2],[7]	3,766	[1],[3]
Investment, Identifier [Axis]: AVG Intermediate Holdings & AVG Subsidiary Holdings LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	89		89
Investments, at fair value, ending balance				153	[2],[7]	89	[1],[3]
Investment, Identifier [Axis]: AVG Intermediate Holdings & AVG Subsidiary Holdings LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(3)		(3)
Investments, at fair value, ending balance				0	[2],[7],[12]	(3)	[1],[3],[11]
Investment, Identifier [Axis]: AVG Intermediate Holdings & AVG Subsidiary Holdings LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(3)		(3)
Investments, at fair value, ending balance				72	[2],[7]	(3)	[1],[3],[11]
Investment, Identifier [Axis]: AVG Intermediate Holdings & AVG Subsidiary Holdings LLC, Subordinated debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,900		1,900
Investments, at fair value, ending balance				2,213	[2],[7],[13]	1,900	[1],[3]
Investment, Identifier [Axis]: AVG Intermediate Holdings & AVG Subsidiary Holdings LLC, Subordinated debt 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	726		726
Investments, at fair value, ending balance				846	[2],[7],[13]	726	[1],[3]
Investment, Identifier [Axis]: AVG Intermediate Holdings & AVG Subsidiary Holdings LLC, Subordinated debt 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	163		163
Investments, at fair value, ending balance				264	[2],[7],[13]	163	[1],[3]
Investment, Identifier [Axis]: Abita Brewing Co. LLC
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance		8,071		8,071		10,050
Gross additions		413		1,334
Gross reductions		(212)		(728)
Net change in unrealized appreciation (depreciation)		(2,180)		(2,141)
Net realized gain (loss)		0		0
Investments, at fair value, ending balance				6,536		8,071		10,050
Interest, dividend and fee income				805		823
Investment, Identifier [Axis]: Abita Brewing Co., L.L.C., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5,786		5,786
Investments, at fair value, ending balance				5,128	[2],[7],[13]	5,786	[1],[3]
Investment, Identifier [Axis]: Abita Brewing Co., L.L.C., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Abita Brewing Co., L.L.C., Second lien
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,051		2,051
Investments, at fair value, ending balance				1,396	[2],[7],[13],[16]	2,051	[1],[3]
Investment, Identifier [Axis]: Abita Brewing Co., L.L.C., Warrant
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	234		234
Investments, at fair value, ending balance				12	[2],[7]	234	[1],[3]
Investment, Identifier [Axis]: Accela, Inc., LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	330		330
Investments, at fair value, ending balance	[1],[3]					330
Investment, Identifier [Axis]: Accela, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[4],[14]	4,695		4,695
Investments, at fair value, ending balance	[3],[4],[14]					4,695
Investment, Identifier [Axis]: Accela, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	279		279
Investments, at fair value, ending balance	[3]					279
Investment, Identifier [Axis]: Accela, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	20		20
Investments, at fair value, ending balance	[3]					20
Investment, Identifier [Axis]: Accelya Lux Finco S.A.R.L., One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[17]			917
Investment, Identifier [Axis]: Accession Risk Management Group, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(75)
Investment, Identifier [Axis]: Accession Risk Management Group, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[8],[15]			24,738
Investment, Identifier [Axis]: Accession Risk Management Group, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			6,332
Investment, Identifier [Axis]: Accession Risk Management Group, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			1,465
Investment, Identifier [Axis]: Accession Risk Management Group, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(2)
Investment, Identifier [Axis]: Accession Risk Management Group, Inc., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			5,426
Investment, Identifier [Axis]: Accession Risk Management Group, Inc., Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[18]			2,619
Investment, Identifier [Axis]: Acquia, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,578		9,578
Investments, at fair value, ending balance				9,578	[2],[7]	9,578	[1],[3]
Investment, Identifier [Axis]: Acquia, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	23		23
Investments, at fair value, ending balance				27	[2],[7]	23	[1],[3]
Investment, Identifier [Axis]: Active Day, Inc., LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	386		386
Investments, at fair value, ending balance				156	[2],[7]	386	[1],[3]
Investment, Identifier [Axis]: Active Day, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	17,389		17,389
Investments, at fair value, ending balance				17,216	[2],[7],[15]	17,389	[1],[3],[14]
Investment, Identifier [Axis]: Active Day, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	1,343		1,343
Investments, at fair value, ending balance				1,328	[2],[7],[15]	1,343	[1],[3],[14]
Investment, Identifier [Axis]: Active Day, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	865		865
Investments, at fair value, ending balance				856	[2],[8],[15]	865	[1],[4],[14]
Investment, Identifier [Axis]: Active Day, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	689		689
Investments, at fair value, ending balance				682	[2],[7]	689	[1],[3]
Investment, Identifier [Axis]: Active Day, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	608		608
Investments, at fair value, ending balance				602	[2],[7]	608	[1],[3]
Investment, Identifier [Axis]: Active Day, Inc., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	597		597
Investments, at fair value, ending balance				592	[2],[8],[15]	597	[1],[4],[14]
Investment, Identifier [Axis]: Active Day, Inc., One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(4)		(4)
Investments, at fair value, ending balance				(4)	[2],[7],[12]	(4)	[1],[3],[11]
Investment, Identifier [Axis]: Active Day, Inc., One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,719		3,719
Investments, at fair value, ending balance				4,917	[2],[7],[18]	3,719	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,176		2,176
Investments, at fair value, ending balance				2,950	[2],[7]	2,176	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	16,213		16,213
Investments, at fair value, ending balance				16,343	[2],[7]	16,213	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	266		266
Investments, at fair value, ending balance				268	[2],[7],[13]	266	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, One stop 11
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	165		165
Investments, at fair value, ending balance				165	[2],[7]	165	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, One stop 12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	45		45
Investments, at fair value, ending balance				30	[2],[7]	45	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, One stop 13
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	102		102
Investments, at fair value, ending balance				102	[2],[7],[13]	102	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, One stop 14
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1		1
Investments, at fair value, ending balance				1	[2],[7]	1	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, One stop 15
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	143		143
Investments, at fair value, ending balance				0	[2],[7],[12]	143	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, One stop 16
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	205		205
Investments, at fair value, ending balance				1,033	[2],[7]	205	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	10,440		10,440
Investments, at fair value, ending balance				12,165	[2],[7],[13]	10,440	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,036		4,036
Investments, at fair value, ending balance				4,036	[2],[7]	4,036	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,596		3,596
Investments, at fair value, ending balance				3,596	[2],[7]	3,596	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	3,469		3,469
Investments, at fair value, ending balance				3,504	[2],[7],[15]	3,469	[1],[3],[14]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,172		3,172
Investments, at fair value, ending balance				3,171	[2],[7]	3,172	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,016		2,016
Investments, at fair value, ending balance				2,027	[2],[7]	2,016	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,849		1,849
Investments, at fair value, ending balance				1,849	[2],[7]	1,849	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	447		447
Investments, at fair value, ending balance				447	[2],[7]	447	[1],[3]
Investment, Identifier [Axis]: Acuity Eyecare Holdings, LLC, Senior secured
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	109		109
Investments, at fair value, ending balance				109	[2],[7]	109	[1],[3]
Investment, Identifier [Axis]: Adenza Group, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			3,975
Investment, Identifier [Axis]: Adenza Group, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			0
Investment, Identifier [Axis]: Advanced Pain Management Holdings, Inc., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[19]	0		0
Investments, at fair value, ending balance	[1],[3],[19]					0
Investment, Identifier [Axis]: Advanced Pain Management Holdings, Inc., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[19]	0		0
Investments, at fair value, ending balance	[1],[3],[19]					0
Investment, Identifier [Axis]: Advanced Pain Management Holdings, Inc., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[19]	0		0
Investments, at fair value, ending balance	[1],[3],[19]					0
Investment, Identifier [Axis]: Advanced Pain Management Holdings, Inc., Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[19]	0		0
Investments, at fair value, ending balance	[1],[3],[19]					0
Investment, Identifier [Axis]: Agility Recovery Solutions Inc., LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	411		411
Investments, at fair value, ending balance				223	[2],[7]	411	[1],[3]
Investment, Identifier [Axis]: Agility Recovery Solutions Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	21,870		21,870
Investments, at fair value, ending balance				22,375	[2],[7],[13]	21,870	[1],[3],[4],[14]
Investment, Identifier [Axis]: Agility Recovery Solutions Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	571		571
Investments, at fair value, ending balance				752	[2],[7],[13]	571	[1],[3]
Investment, Identifier [Axis]: Alegeus Technologies Holdings Corp., Senior secured
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	370		370
Investments, at fair value, ending balance				374	[2],[7]	370	[1],[3]
Investment, Identifier [Axis]: Alera Group, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	24,297		24,297
Investments, at fair value, ending balance				24,863	[2],[7]	24,297	[1],[3]
Investment, Identifier [Axis]: Alera Group, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	6,905		6,905
Investments, at fair value, ending balance				7,066	[2],[7]	6,905	[1],[3]
Investment, Identifier [Axis]: Alera Group, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	437		437
Investments, at fair value, ending balance				602	[2],[7]	437	[1],[3]
Investment, Identifier [Axis]: Amalthea Parent, Inc., LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6]	943		943
Investments, at fair value, ending balance				432	[2],[7],[9],[10]	943	[1],[3],[5],[6]
Investment, Identifier [Axis]: Amalthea Parent, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[5],[6],[14]	56,673		56,673
Investments, at fair value, ending balance				53,997	[2],[7],[8],[9],[10],[15]	56,673	[1],[3],[4],[5],[6],[14]
Investment, Identifier [Axis]: Amalthea Parent, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[11]	(3)		(3)
Investments, at fair value, ending balance				(22)	[2],[7],[9],[10],[12]	(3)	[1],[3],[5],[6],[11]
Investment, Identifier [Axis]: Amalthea Parent, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[11]	(17)		(17)
Investments, at fair value, ending balance	[1],[3],[5],[6],[11]					(17)
Investment, Identifier [Axis]: Amalthea Parent, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[11]	(3)		(3)
Investments, at fair value, ending balance	[1],[3],[5],[6],[11]					(3)
Investment, Identifier [Axis]: AmerCareRoyal LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	733		733
Investments, at fair value, ending balance				743	[2],[7],[13]	733	[1],[3]
Investment, Identifier [Axis]: AmerCareRoyal LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	156		156
Investments, at fair value, ending balance				159	[2],[7],[13]	156	[1],[3]
Investment, Identifier [Axis]: AmerCareRoyal LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	152		152
Investments, at fair value, ending balance				154	[2],[7],[13]	152	[1],[3]
Investment, Identifier [Axis]: AmerCareRoyal LLC, Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6]	132		132
Investments, at fair value, ending balance				133	[2],[7],[10],[13]	132	[1],[3],[6]
Investment, Identifier [Axis]: Anaplan, Inc., LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	385		385
Investments, at fair value, ending balance				547	[2],[7]	385	[1],[3]
Investment, Identifier [Axis]: Anaplan, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	9,643		9,643
Investments, at fair value, ending balance				9,840	[2],[7]	9,643	[3]
Investment, Identifier [Axis]: Anaplan, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[11]	(3)		(3)
Investments, at fair value, ending balance				0	[2],[7],[12]	(3)	[3],[11]
Investment, Identifier [Axis]: Apothecary Products, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,833		2,833
Investments, at fair value, ending balance				2,632	[2],[7]	2,833	[1],[3]
Investment, Identifier [Axis]: Apothecary Products, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	140		140
Investments, at fair value, ending balance				0	[2],[7],[12]	140	[1],[3]
Investment, Identifier [Axis]: Appfire Technologies, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[14]	36,209		36,209
Investments, at fair value, ending balance				38,653	[2],[7],[15]	36,209	[3],[14]
Investment, Identifier [Axis]: Appfire Technologies, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	17		17
Investments, at fair value, ending balance				(5)	[2],[7],[12]	17	[3]
Investment, Identifier [Axis]: Appfire Technologies, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[11]	(11)		(11)
Investments, at fair value, ending balance				(68)	[2],[7],[12]	(11)	[3],[11]
Investment, Identifier [Axis]: Appfire Technologies, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[11]	(55)		(55)
Investments, at fair value, ending balance	[3],[11]					(55)
Investment, Identifier [Axis]: Appriss Health Intermediate Holdings, Inc, Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,172		2,172
Investments, at fair value, ending balance				2,285	[2],[7],[18]	2,172	[1],[3]
Investment, Identifier [Axis]: Apptio, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	56,440		56,440
Investments, at fair value, ending balance	[3]					56,440
Investment, Identifier [Axis]: Apptio, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	76		76
Investments, at fair value, ending balance	[3]					76
Investment, Identifier [Axis]: Aras Corporation, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	247		247
Investments, at fair value, ending balance				409	[2],[7]	247	[1],[3]
Investment, Identifier [Axis]: Aras Corporation, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	14,159		14,159
Investments, at fair value, ending balance				14,541	[2],[7],[13]	14,159	[3]
Investment, Identifier [Axis]: Aras Corporation, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	31		31
Investments, at fair value, ending balance				66	[2],[7]	31	[3]
Investment, Identifier [Axis]: Aras Corporation, Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,165		1,165
Investments, at fair value, ending balance				1,238	[2],[7],[18]	1,165	[1],[3]
Investment, Identifier [Axis]: Arch Global CCT Holdings Corp., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	2,331		2,331
Investments, at fair value, ending balance				2,284	[2],[7],[15]	2,331	[1],[3],[14]
Investment, Identifier [Axis]: Arch Global CCT Holdings Corp., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	134		134
Investments, at fair value, ending balance				131	[2],[7]	134	[1],[3]
Investment, Identifier [Axis]: Arch Global CCT Holdings Corp., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	74		74
Investments, at fair value, ending balance				145	[2],[7]	74	[1],[3]
Investment, Identifier [Axis]: Arch Global CCT Holdings Corp., Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Arctic Wolfs Networks, Inc. and Arctic Wolf Networks Canada, Inc., Preferred stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,684		4,684
Investments, at fair value, ending balance				4,260	[2],[7]	4,684	[1],[3]
Investment, Identifier [Axis]: Arctic Wolfs Networks, Inc. and Arctic Wolf Networks Canada, Inc., Preferred stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,228		1,228
Investments, at fair value, ending balance				1,117	[2],[7]	1,228	[1],[3]
Investment, Identifier [Axis]: Arctic Wolfs Networks, Inc. and Arctic Wolf Networks Canada, Inc., Preferred stock 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	285		285
Investments, at fair value, ending balance				256	[2],[7]	285	[1],[3]
Investment, Identifier [Axis]: Arctic Wolfs Networks, Inc. and Arctic Wolf Networks Canada, Inc., Warrant
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,481		1,481
Investments, at fair value, ending balance				1,361	[2],[7]	1,481	[1],[3]
Investment, Identifier [Axis]: Armstrong Bidco Limited, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[6],[20],[21]	3,103		3,103
Investments, at fair value, ending balance				3,321	[2],[7],[10],[22],[23]	3,103	[3],[6],[20],[21]
Investment, Identifier [Axis]: Armstrong Bidco Limited, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[6],[20],[21]	500		500
Investments, at fair value, ending balance				1,733	[2],[7],[10],[22],[23]	500	[3],[6],[20],[21]
Investment, Identifier [Axis]: Arrow Buyer, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			16,155
Investment, Identifier [Axis]: Arrow Buyer, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(47)
Investment, Identifier [Axis]: Aspen Medical Products, LLC, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	101		101
Investments, at fair value, ending balance				88	[2],[7]	101	[1],[3]
Investment, Identifier [Axis]: Aspen Medical Products, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	4,074		4,074
Investments, at fair value, ending balance				4,115	[2],[7],[15]	4,074	[1],[3],[14]
Investment, Identifier [Axis]: Aspen Medical Products, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	260		260
Investments, at fair value, ending balance				263	[2],[7]	260	[1],[3]
Investment, Identifier [Axis]: Aspen Medical Products, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Astute Holdings, Inc., LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	754		754
Investments, at fair value, ending balance				731	[2],[7]	754	[1],[3]
Investment, Identifier [Axis]: Aurora Lux Finco S.A.R.L., One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[24]	926		926
Investments, at fair value, ending balance	[1],[3],[6],[24]					926
Investment, Identifier [Axis]: Auvik Networks Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[5],[6]	6,829		6,829
Investments, at fair value, ending balance				7,124	[2],[7],[9],[10],[13]	6,829	[3],[5],[6]
Investment, Identifier [Axis]: Auvik Networks Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[5],[6]	1,239		1,239
Investments, at fair value, ending balance				1,293	[2],[7],[9],[10],[13]	1,239	[3],[5],[6]
Investment, Identifier [Axis]: Auvik Networks Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[5],[6],[11]	(2)		(2)
Investments, at fair value, ending balance				(1)	[2],[7],[9],[10],[12]	(2)	[3],[5],[6],[11]
Investment, Identifier [Axis]: Auvik Networks Inc., Preferred Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[9],[10]			316
Investment, Identifier [Axis]: Auvik Networks Inc., Preferred Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[9],[10]			36
Investment, Identifier [Axis]: Auvik Networks Inc., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6]	278		278
Investments, at fair value, ending balance	[1],[3],[5],[6]					278
Investment, Identifier [Axis]: Avalara, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			11,941
Investment, Identifier [Axis]: Avalara, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			0
Investment, Identifier [Axis]: Ave Holdings III, Corp, LP units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	888		888
Investments, at fair value, ending balance				1,077	[2],[7]	888	[1],[3]
Investment, Identifier [Axis]: Ave Holdings III, Corp, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	25,119		25,119
Investments, at fair value, ending balance				24,866	[2],[7],[8]	25,119	[1],[3],[4]
Investment, Identifier [Axis]: Ave Holdings III, Corp, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	10		10
Investments, at fair value, ending balance				(4)	[2],[7],[12]	10	[1],[3]
Investment, Identifier [Axis]: Ave Holdings III, Corp, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	67		67
Investments, at fair value, ending balance				36	[2],[7]	67	[1],[3]
Investment, Identifier [Axis]: Ave Holdings III, Corp, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			446
Investment, Identifier [Axis]: Ave Holdings III, Corp, Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,086		9,086
Investments, at fair value, ending balance				9,288	[2],[7],[18]	9,086	[1],[3]
Investment, Identifier [Axis]: Axiom Merger Sub Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	5,728		5,728
Investments, at fair value, ending balance				5,677	[2],[7]	5,728	[3]
Investment, Identifier [Axis]: Axiom Merger Sub Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[6],[20]	2,075		2,075
Investments, at fair value, ending balance				2,215	[2],[7],[10],[22]	2,075	[3],[6],[20]
Investment, Identifier [Axis]: Axiom Merger Sub Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	272		272
Investments, at fair value, ending balance				269	[2],[7]	272	[3]
Investment, Identifier [Axis]: Axiom Merger Sub Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	15		15
Investments, at fair value, ending balance				39	[2],[7]	15	[3]
Investment, Identifier [Axis]: Axiom Merger Sub Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[3]
Investment, Identifier [Axis]: AxiomSL Group, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,976		3,976
Investments, at fair value, ending balance	[1],[3]					3,976
Investment, Identifier [Axis]: AxiomSL Group, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance	[1],[3]					0
Investment, Identifier [Axis]: AxiomSL Group, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance	[1],[3]					0
Investment, Identifier [Axis]: BECO Holding Company, Inc., LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	216		216
Investments, at fair value, ending balance				201	[2],[7]	216	[1],[3]
Investment, Identifier [Axis]: BECO Holding Company, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	7,387		7,387
Investments, at fair value, ending balance				7,313	[2],[7],[15]	7,387	[1],[3],[14]
Investment, Identifier [Axis]: BECO Holding Company, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(9)		(9)
Investments, at fair value, ending balance				12	[2],[7]	(9)	[1],[3],[11]
Investment, Identifier [Axis]: BECO Holding Company, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(39)		(39)
Investments, at fair value, ending balance				(39)	[2],[7],[12]	(39)	[1],[3],[11]
Investment, Identifier [Axis]: BECO Holding Company, Inc., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,065		1,065
Investments, at fair value, ending balance				1,163	[2],[7],[18]	1,065	[1],[3]
Investment, Identifier [Axis]: BJH Holdings III Corp., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	49,561		49,561
Investments, at fair value, ending balance				49,690	[2],[7],[8],[15]	49,561	[1],[3],[4],[14]
Investment, Identifier [Axis]: BJH Holdings III Corp., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	54		54
Investments, at fair value, ending balance				272	[2],[7]	54	[1],[3]
Investment, Identifier [Axis]: Bad Boy Mowers Acquisition, LLC, Senior secured
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,866		1,866
Investments, at fair value, ending balance				1,866	[2],[7]	1,866	[1],[3]
Investment, Identifier [Axis]: Baduhenna Bidco Limited, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[21]	5,415		5,415
Investments, at fair value, ending balance				5,415	[2],[7],[10],[23]	5,415	[1],[3],[6],[21]
Investment, Identifier [Axis]: Baduhenna Bidco Limited, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	2,806		2,806
Investments, at fair value, ending balance				3,063	[2],[7],[10],[22],[23]	2,806	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Baduhenna Bidco Limited, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	784		784
Investments, at fair value, ending balance				863	[2],[7],[10],[22],[23]	784	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Baduhenna Bidco Limited, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	669		669
Investments, at fair value, ending balance				731	[2],[7],[10],[22],[23]	669	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Baduhenna Bidco Limited, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[11],[20],[21]	(8)		(8)
Investments, at fair value, ending balance				0	[2],[7],[10],[12],[22],[23]	(8)	[1],[3],[6],[11],[20],[21]
Investment, Identifier [Axis]: Bamboo US Bidco LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			2,352
Investment, Identifier [Axis]: Bamboo US Bidco LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22]			1,547
Investment, Identifier [Axis]: Bamboo US Bidco LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(15)
Investment, Identifier [Axis]: Bamboo US Bidco LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(6)
Investment, Identifier [Axis]: Banker's Toolbox, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	7,857		7,857
Investments, at fair value, ending balance				7,936	[2],[7]	7,857	[1],[3]
Investment, Identifier [Axis]: Banker's Toolbox, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance				0	[2],[7]	(2)	[1],[3],[11]
Investment, Identifier [Axis]: Banker's Toolbox, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	921		921
Investments, at fair value, ending balance				1,478	[2],[7]	921	[1],[3]
Investment, Identifier [Axis]: Barteca Restaurants, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	7,602		7,602
Investments, at fair value, ending balance				7,602	[2],[15]	7,602	[1],[14]
Investment, Identifier [Axis]: Barteca Restaurants, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance				0	[2],[7],[12]	(1)	[1],[3],[11]
Investment, Identifier [Axis]: Barteca Restaurants, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(20)		(20)
Investments, at fair value, ending balance				510	[2],[7]	(20)	[1],[3],[11]
Investment, Identifier [Axis]: Batteries Plus Holding Corporation, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,386		1,386
Investments, at fair value, ending balance				1,415	[2],[7]	1,386	[1],[3]
Investment, Identifier [Axis]: Batteries Plus Holding Corporation, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	21,921		21,921
Investments, at fair value, ending balance	[1],[4],[14]					21,921
Investment, Identifier [Axis]: Batteries Plus Holding Corporation, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,420		1,420
Investments, at fair value, ending balance	[1],[3]					1,420
Investment, Identifier [Axis]: Batteries Plus Holding Corporation, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	145		145
Investments, at fair value, ending balance	[1],[3]					145
Investment, Identifier [Axis]: Bayshore Intermediate 2, L.P., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,834		3,834
Investments, at fair value, ending balance				3,596	[2],[7]	3,834	[1],[3]
Investment, Identifier [Axis]: Bayshore Intermediate 2, L.P., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	65,064		65,064
Investments, at fair value, ending balance				73,822	[2],[7],[13]	65,064	[3]
Investment, Identifier [Axis]: Bayshore Intermediate 2, L.P., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[11]	0		0
Investments, at fair value, ending balance				33	[2],[7]	0	[3],[11]
Investment, Identifier [Axis]: Bayside Opco, LLC
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance		0		0
Gross additions				22,958
Gross reductions				(619)
Net change in unrealized appreciation (depreciation)				(295)
Net realized gain (loss)				0
Investments, at fair value, ending balance				22,044		0
Interest, dividend and fee income				749
Investment, Identifier [Axis]: Bayside Opco, LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			2,345
Investment, Identifier [Axis]: Bayside Opco, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13]			11,866
Investment, Identifier [Axis]: Bayside Opco, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13]			4,026
Investment, Identifier [Axis]: Bayside Opco, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13]			350
Investment, Identifier [Axis]: Bayside Opco, LLC, Subordinated debt
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13],[16]			3,457
Investment, Identifier [Axis]: Belmont Instrument, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,801		9,801
Investments, at fair value, ending balance				9,801	[2],[8],[15]	9,801	[1],[3]
Investment, Identifier [Axis]: Belmont Instrument, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance				33	[2],[7]	(1)	[1],[3],[11]
Investment, Identifier [Axis]: Benetech, Inc.
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance		1,740		1,740		2,399
Gross additions		2,821		618
Gross reductions		(2,512)		(710)
Net change in unrealized appreciation (depreciation)		(968)		(295)
Net realized gain (loss)		0		0
Investments, at fair value, ending balance				1,353		1,740		2,399
Interest, dividend and fee income				9		227
Investment, Identifier [Axis]: Benetech, Inc., LLC interest 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance	[1],[3]					0
Investment, Identifier [Axis]: Benetech, Inc., LLC interest 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance	[1],[3]					0
Investment, Identifier [Axis]: Benetech, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[19]	1,487		1,487
Investments, at fair value, ending balance				1,242	[2],[7],[13],[16]	1,487	[1],[3],[19]
Investment, Identifier [Axis]: Benetech, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[19]	253		253
Investments, at fair value, ending balance				111	[2],[7],[13],[16]	253	[1],[3],[19]
Investment, Identifier [Axis]: Benihana, Inc., LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	718		718
Investments, at fair value, ending balance				896	[2],[7]	718	[1],[3]
Investment, Identifier [Axis]: Blackbird Purchaser, Inc., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	18,893		18,893
Investments, at fair value, ending balance				19,174	[2],[7],[8]	18,893	[1],[3],[4]
Investment, Identifier [Axis]: Blackbird Purchaser, Inc., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	56		56
Investments, at fair value, ending balance				0	[2],[7]	56	[1],[3]
Investment, Identifier [Axis]: Blackbird Purchaser, Inc., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(3)		(3)
Investments, at fair value, ending balance	[1],[3],[11]					(3)
Investment, Identifier [Axis]: Blades Buyer, Inc., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	9,786		9,786
Investments, at fair value, ending balance				9,859	[2],[7],[15]	9,786	[1],[3],[14]
Investment, Identifier [Axis]: Blades Buyer, Inc., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	27		27
Investments, at fair value, ending balance				(3)	[2],[7],[12]	27	[1],[3]
Investment, Identifier [Axis]: Blades Buyer, Inc., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(8)		(8)
Investments, at fair value, ending balance				314	[2],[7]	(8)	[1],[3],[11]
Investment, Identifier [Axis]: Blades Buyer, Inc., Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				1,301	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Blue River Pet Care, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	165		165
Investments, at fair value, ending balance				211	[2],[7]	165	[1],[3]
Investment, Identifier [Axis]: Blue River Pet Care, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	50,686		50,686
Investments, at fair value, ending balance				50,167	[2],[7],[8],[15]	50,686	[1],[3],[4],[14]
Investment, Identifier [Axis]: Blue River Pet Care, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(4)		(4)
Investments, at fair value, ending balance				120	[2],[7]	(4)	[1],[3],[11]
Investment, Identifier [Axis]: Blue River Pet Care, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(11)		(11)
Investments, at fair value, ending balance				(2)	[2],[7],[12]	(11)	[1],[3],[11]
Investment, Identifier [Axis]: Blue River Pet Care, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	178		178
Investments, at fair value, ending balance				176	[2],[7]	178	[1],[3]
Investment, Identifier [Axis]: Blue River Pet Care, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	171		171
Investments, at fair value, ending balance				170	[2],[7]	171	[1],[3]
Investment, Identifier [Axis]: Blue River Pet Care, LLC, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			757
Investment, Identifier [Axis]: Blue River Pet Care, LLC, One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			168
Investment, Identifier [Axis]: Bonterra LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	63,194		63,194
Investments, at fair value, ending balance				63,465	[2],[7]	63,194	[3]
Investment, Identifier [Axis]: Bonterra LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	120		120
Investments, at fair value, ending balance				(6)	[2],[7],[12]	120	[3]
Investment, Identifier [Axis]: Bonterra LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[11]	(58)		(58)
Investments, at fair value, ending balance				2,769	[2],[7]	(58)	[3],[11]
Investment, Identifier [Axis]: Borrower R365 Holdings, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2		2
Investments, at fair value, ending balance				2	[2],[7]	2	[1],[3]
Investment, Identifier [Axis]: Borrower R365 Holdings, LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5		5
Investments, at fair value, ending balance				7	[2],[7]	5	[1],[3]
Investment, Identifier [Axis]: Borrower R365 Holdings, LLC, LP units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			1
Investment, Identifier [Axis]: Borrower R365 Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	13,490		13,490
Investments, at fair value, ending balance				13,669	[2],[7],[13]	13,490	[1],[3]
Investment, Identifier [Axis]: Borrower R365 Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,112		1,112
Investments, at fair value, ending balance				1,127	[2],[7],[13]	1,112	[1],[3]
Investment, Identifier [Axis]: Borrower R365 Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				0	[2],[7],[12]	0	[1],[3],[11]
Investment, Identifier [Axis]: Borrower R365 Holdings, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				0	[2],[7],[12]	0	[1],[3],[11]
Investment, Identifier [Axis]: Borrower R365 Holdings, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13]			43
Investment, Identifier [Axis]: Borrower R365 Holdings, LLC, Preferred Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			173
Investment, Identifier [Axis]: Borrower R365 Holdings, LLC, Preferred Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			3
Investment, Identifier [Axis]: Borrower R365 Holdings, LLC, Preferred Stock 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			9
Investment, Identifier [Axis]: Borrower R365 Holdings, LLC, Preferred Stock 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			2
Investment, Identifier [Axis]: Borrower R365 Holdings, LLC, Preferred stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	114		114
Investments, at fair value, ending balance	[1],[3]					114
Investment, Identifier [Axis]: Borrower R365 Holdings, LLC, Preferred stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2		2
Investments, at fair value, ending balance	[1],[3]					2
Investment, Identifier [Axis]: Bottomline Technologies, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	27,318		27,318
Investments, at fair value, ending balance				26,696	[2],[7]	27,318	[3]
Investment, Identifier [Axis]: Bottomline Technologies, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[11]	(6)		(6)
Investments, at fair value, ending balance				(7)	[2],[7],[12]	(6)	[3],[11]
Investment, Identifier [Axis]: Brandmuscle, Inc., LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	149		149
Investments, at fair value, ending balance				233	[2],[7]	149	[1],[3]
Investment, Identifier [Axis]: Bullhorn, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[4],[14]	65,946		65,946
Investments, at fair value, ending balance				64,616	[2],[7],[8],[15]	65,946	[3],[4],[14]
Investment, Identifier [Axis]: Bullhorn, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[6],[20]	10,681		10,681
Investments, at fair value, ending balance				11,438	[2],[7],[10],[22]	10,681	[3],[6],[20]
Investment, Identifier [Axis]: Bullhorn, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[6],[20]	4,236		4,236
Investments, at fair value, ending balance				4,478	[2],[7],[10],[22]	4,236	[3],[6],[20]
Investment, Identifier [Axis]: Bullhorn, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	214		214
Investments, at fair value, ending balance				209	[2],[7]	214	[3]
Investment, Identifier [Axis]: Bullhorn, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	96		96
Investments, at fair value, ending balance				94	[2],[7]	96	[3]
Investment, Identifier [Axis]: Bullhorn, Inc., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	76		76
Investments, at fair value, ending balance				75	[2],[7]	76	[3]
Investment, Identifier [Axis]: Bullhorn, Inc., One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	110		110
Investments, at fair value, ending balance				(2)	[2],[7],[12]	110	[3]
Investment, Identifier [Axis]: Burning Glass Intermediate Holdings Company, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[14]	9,819		9,819
Investments, at fair value, ending balance				9,720	[2],[7],[15]	9,819	[3],[14]
Investment, Identifier [Axis]: Burning Glass Intermediate Holdings Company, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	28		28
Investments, at fair value, ending balance				21	[2],[7]	28	[3]
Investment, Identifier [Axis]: Bynder BidCo, Inc.& Bynder BidCo B.V., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[25]			5,437
Investment, Identifier [Axis]: Bynder BidCo, Inc.& Bynder BidCo B.V., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[25]			1,438
Investment, Identifier [Axis]: Bynder BidCo, Inc.& Bynder BidCo B.V., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[25]			0
Investment, Identifier [Axis]: Bynder BidCo, Inc.& Bynder BidCo B.V., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[12],[25]			0
Investment, Identifier [Axis]: C. J. Foods, Inc., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	484		484
Investments, at fair value, ending balance				1,285	[2],[7]	484	[1],[3]
Investment, Identifier [Axis]: CCSL Holdings, LLC, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	254		254
Investments, at fair value, ending balance				315	[2],[7],[10]	254	[1],[3]
Investment, Identifier [Axis]: CCSL Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	15,244		15,244
Investments, at fair value, ending balance				15,089	[2],[8],[10],[15]	15,244	[1],[3],[4]
Investment, Identifier [Axis]: CCSL Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,114		4,114
Investments, at fair value, ending balance				4,073	[2],[7],[10]	4,114	[1],[3]
Investment, Identifier [Axis]: CCSL Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20]	2,154		2,154
Investments, at fair value, ending balance				2,330	[2],[7],[10],[22]	2,154	[1],[3],[6],[20]
Investment, Identifier [Axis]: CCSL Holdings, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	113		113
Investments, at fair value, ending balance				(3)	[2],[7],[10],[12]	113	[1],[3]
Investment, Identifier [Axis]: CCSL Holdings, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(14)		(14)
Investments, at fair value, ending balance				(26)	[2],[7],[10],[12]	(14)	[1],[3],[11]
Investment, Identifier [Axis]: CCSL Holdings, LLC, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(26)		(26)
Investments, at fair value, ending balance				(27)	[2],[7],[10],[12]	(26)	[1],[3],[11]
Investment, Identifier [Axis]: CG Group Holdings, LLC, LP units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	597		597
Investments, at fair value, ending balance				487	[2],[7]	597	[1],[3]
Investment, Identifier [Axis]: CG Group Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	28,925		28,925
Investments, at fair value, ending balance				30,493	[2],[7],[8],[13],[15]	28,925	[1],[3],[4],[14]
Investment, Identifier [Axis]: CG Group Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	311		311
Investments, at fair value, ending balance				333	[2],[7],[13]	311	[1],[3]
Investment, Identifier [Axis]: CHHJ Midco, LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[26]	249		249
Investments, at fair value, ending balance				302	[2],[7],[18]	249	[1],[3],[26]
Investment, Identifier [Axis]: CHHJ Midco, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	2,723		2,723
Investments, at fair value, ending balance				2,695	[2],[15]	2,723	[1],[14]
Investment, Identifier [Axis]: CHHJ Midco, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: CI (Quercus) Intermediate Holdings, LLC, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	579		579
Investments, at fair value, ending balance				625	[2],[7]	579	[1],[3]
Investment, Identifier [Axis]: CI (Quercus) Intermediate Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	15,741		15,741
Investments, at fair value, ending balance				17,792	[2],[7],[8],[15]	15,741	[1],[3],[4]
Investment, Identifier [Axis]: CI (Quercus) Intermediate Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(4)		(4)
Investments, at fair value, ending balance				10	[2],[7]	(4)	[1],[3],[11]
Investment, Identifier [Axis]: CI (Quercus) Intermediate Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(48)		(48)
Investments, at fair value, ending balance				0	[2],[7],[12]	(48)	[1],[3],[11]
Investment, Identifier [Axis]: CMI Parent Inc., Common Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[26]	172		172
Investments, at fair value, ending balance				186	[2],[7]	172	[1],[3],[26]
Investment, Identifier [Axis]: CMI Parent Inc., Common Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	279		279
Investments, at fair value, ending balance				275	[2],[7]	279	[1],[3]
Investment, Identifier [Axis]: CMI Parent Inc., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	6,434		6,434
Investments, at fair value, ending balance				6,432	[2],[8],[15]	6,434	[1],[3],[14]
Investment, Identifier [Axis]: CMI Parent Inc., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,188		3,188
Investments, at fair value, ending balance				3,094	[2],[8]	3,188	[1],[3]
Investment, Identifier [Axis]: CMI Parent Inc., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(4)		(4)
Investments, at fair value, ending balance				0	[2],[7],[12]	(4)	[1],[3],[11]
Investment, Identifier [Axis]: CMI Parent Inc., Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,903		2,903
Investments, at fair value, ending balance				2,903	[2],[8]	2,903	[1],[3]
Investment, Identifier [Axis]: COP CollisionRight Holdings, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	9,542		9,542
Investments, at fair value, ending balance				9,711	[2],[7],[15]	9,542	[1],[3],[14]
Investment, Identifier [Axis]: COP CollisionRight Holdings, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	26		26
Investments, at fair value, ending balance				35	[2],[7]	26	[1],[3]
Investment, Identifier [Axis]: COP CollisionRight Holdings, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(3)		(3)
Investments, at fair value, ending balance	[1],[3],[11]					(3)
Investment, Identifier [Axis]: COP Exterminators Acquisitions, Inc., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			2,829
Investment, Identifier [Axis]: COP Exterminators Acquisitions, Inc., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(1)
Investment, Identifier [Axis]: COP Exterminators Acquisitions, Inc., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(20)
Investment, Identifier [Axis]: COP Hometown Acquisitions, Inc., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,696		1,696
Investments, at fair value, ending balance				1,695	[2],[7]	1,696	[1],[3]
Investment, Identifier [Axis]: COP Hometown Acquisitions, Inc., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,652		1,652
Investments, at fair value, ending balance				1,652	[2],[7]	1,652	[1],[3]
Investment, Identifier [Axis]: COP Hometown Acquisitions, Inc., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,083		1,083
Investments, at fair value, ending balance				1,083	[2],[7]	1,083	[1],[3]
Investment, Identifier [Axis]: COP Hometown Acquisitions, Inc., Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	765		765
Investments, at fair value, ending balance				765	[2],[7]	765	[1],[3]
Investment, Identifier [Axis]: COP Hometown Acquisitions, Inc., Senior secured 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	197		197
Investments, at fair value, ending balance				197	[2],[7]	197	[1],[3]
Investment, Identifier [Axis]: COP Hometown Acquisitions, Inc., Senior secured 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	120		120
Investments, at fair value, ending balance				119	[2],[7]	120	[1],[3]
Investment, Identifier [Axis]: COP Hometown Acquisitions, Inc., Senior secured 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: CRH Healthcare Purchaser, Inc., LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,252		1,252
Investments, at fair value, ending balance				631	[2],[7]	1,252	[1],[3]
Investment, Identifier [Axis]: CRH Healthcare Purchaser, Inc., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	19,502		19,502
Investments, at fair value, ending balance				19,209	[2],[7]	19,502	[1],[3],[4]
Investment, Identifier [Axis]: CRH Healthcare Purchaser, Inc., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	5,197		5,197
Investments, at fair value, ending balance				5,068	[2],[7]	5,197	[1],[14]
Investment, Identifier [Axis]: CRH Healthcare Purchaser, Inc., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	4,112		4,112
Investments, at fair value, ending balance				4,008	[2],[7]	4,112	[1],[3],[14]
Investment, Identifier [Axis]: CRH Healthcare Purchaser, Inc., Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,521		3,521
Investments, at fair value, ending balance				3,433	[2],[7]	3,521	[1],[3]
Investment, Identifier [Axis]: CRH Healthcare Purchaser, Inc., Senior secured 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	50		50
Investments, at fair value, ending balance				196	[2],[7]	50	[1],[3]
Investment, Identifier [Axis]: CST Buyer Company, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	20,121		20,121
Investments, at fair value, ending balance	[1],[3],[14]					20,121
Investment, Identifier [Axis]: CST Buyer Company, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	10,140		10,140
Investments, at fair value, ending balance	[1],[3],[14]					10,140
Investment, Identifier [Axis]: CST Buyer Company, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance	[1],[3]					0
Investment, Identifier [Axis]: CST Holding Company, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			24,533
Investment, Identifier [Axis]: CST Holding Company, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			0
Investment, Identifier [Axis]: Caerus Midco 3 S.A.R.L., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[24]	16,835		16,835
Investments, at fair value, ending balance				16,497	[2],[7],[10],[17]	16,835	[1],[3],[6],[24]
Investment, Identifier [Axis]: Caerus Midco 3 S.A.R.L., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[11],[24]	(5)		(5)
Investments, at fair value, ending balance				68	[2],[7],[10],[17]	(5)	[1],[3],[6],[11],[24]
Investment, Identifier [Axis]: Caerus Midco 3 S.A.R.L., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[11],[24]	(52)		(52)
Investments, at fair value, ending balance				1,096	[2],[7],[10],[17]	(52)	[1],[3],[6],[11],[24]
Investment, Identifier [Axis]: Caerus Midco 3 S.A.R.L., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[17]			2,758
Investment, Identifier [Axis]: Caerus Midco 3 S.A.R.L., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[17]			174
Investment, Identifier [Axis]: Cafe Rio Holding, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	758		758
Investments, at fair value, ending balance				987	[2],[7]	758	[1],[3]
Investment, Identifier [Axis]: Cafe Rio Holding, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	18,226		18,226
Investments, at fair value, ending balance				18,034	[2],[8],[15]	18,226	[1],[4],[14]
Investment, Identifier [Axis]: Cafe Rio Holding, Inc., One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			100
Investment, Identifier [Axis]: Cafe Rio Holding, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,277		3,277
Investments, at fair value, ending balance				3,244	[2],[7],[15]	3,277	[1],[3]
Investment, Identifier [Axis]: Cafe Rio Holding, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	2,203		2,203
Investments, at fair value, ending balance				2,179	[2],[7],[15]	2,203	[1],[3],[14]
Investment, Identifier [Axis]: Cafe Rio Holding, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	1,398		1,398
Investments, at fair value, ending balance				1,383	[2],[8],[15]	1,398	[1],[4],[14]
Investment, Identifier [Axis]: Cafe Rio Holding, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	1,235		1,235
Investments, at fair value, ending balance				1,222	[2],[7],[15]	1,235	[1],[3],[14]
Investment, Identifier [Axis]: Cafe Rio Holding, Inc., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	110		110
Investments, at fair value, ending balance				101	[2],[7]	110	[1],[3]
Investment, Identifier [Axis]: Cafe Rio Holding, Inc., One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	178		178
Investments, at fair value, ending balance				176	[2],[7]	178	[1],[3]
Investment, Identifier [Axis]: Cafe Rio Holding, Inc., One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				50	[2],[7]	0	[1],[3],[11]
Investment, Identifier [Axis]: Cafe Rio Holding, Inc., One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	80		80
Investments, at fair value, ending balance				79	[2],[7]	80	[1],[3]
Investment, Identifier [Axis]: Calabrio, Inc., LP Interest 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	875		875
Investments, at fair value, ending balance				711	[2],[7]	875	[1],[3]
Investment, Identifier [Axis]: Calabrio, Inc., LP Interest 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Calabrio, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	53,683		53,683
Investments, at fair value, ending balance				53,683	[2],[7]	53,683	[3]
Investment, Identifier [Axis]: Calabrio, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[11]	0		0
Investments, at fair value, ending balance				135	[2],[7]	0	[3],[11]
Investment, Identifier [Axis]: Camelia Bidco Limited, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[23]			3,078
Investment, Identifier [Axis]: Camelia Bidco Limited, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[23]			201
Investment, Identifier [Axis]: Camelia Bidco Limited, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[12],[22],[23]			(20)
Investment, Identifier [Axis]: Captive Resources Midco, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,616		9,616
Investments, at fair value, ending balance				10,130	[2],[7],[13]	9,616	[1],[3]
Investment, Identifier [Axis]: Captive Resources Midco, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(4)		(4)
Investments, at fair value, ending balance				0	[2],[7],[12]	(4)	[1],[3],[11]
Investment, Identifier [Axis]: Celerion Buyer, Inc, LP units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			930
Investment, Identifier [Axis]: Celerion Buyer, Inc, LP units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			287
Investment, Identifier [Axis]: Celerion Buyer, Inc, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[8],[15]			21,380
Investment, Identifier [Axis]: Celerion Buyer, Inc, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			0
Investment, Identifier [Axis]: Celerion Buyer, Inc, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			0
Investment, Identifier [Axis]: Certus Pest, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	1,557		1,557
Investments, at fair value, ending balance				1,557	[2],[15]	1,557	[1],[14]
Investment, Identifier [Axis]: Certus Pest, Inc., One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	128		128
Investments, at fair value, ending balance				128	[2],[7]	128	[1],[3]
Investment, Identifier [Axis]: Certus Pest, Inc., One stop 11
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	54		54
Investments, at fair value, ending balance				54	[2],[7]	54	[1],[3]
Investment, Identifier [Axis]: Certus Pest, Inc., One stop 12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance				(1)	[2],[7],[12]	(1)	[1],[3],[11]
Investment, Identifier [Axis]: Certus Pest, Inc., One stop 13
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance	[1],[3],[11]					0
Investment, Identifier [Axis]: Certus Pest, Inc., One stop 14
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(99)		(99)
Investments, at fair value, ending balance	[1],[3],[11]					(99)
Investment, Identifier [Axis]: Certus Pest, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	1,493		1,493
Investments, at fair value, ending balance				1,493	[2],[15]	1,493	[1],[14]
Investment, Identifier [Axis]: Certus Pest, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,077		1,077
Investments, at fair value, ending balance				1,077	[2],[7]	1,077	[1],[3]
Investment, Identifier [Axis]: Certus Pest, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	1,058		1,058
Investments, at fair value, ending balance				1,064	[2],[15]	1,058	[1],[14]
Investment, Identifier [Axis]: Certus Pest, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	738		738
Investments, at fair value, ending balance				738	[2],[7]	738	[1],[3]
Investment, Identifier [Axis]: Certus Pest, Inc., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	651		651
Investments, at fair value, ending balance				650	[2],[15]	651	[1],[14]
Investment, Identifier [Axis]: Certus Pest, Inc., One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	634		634
Investments, at fair value, ending balance				634	[2],[7]	634	[1],[3]
Investment, Identifier [Axis]: Certus Pest, Inc., One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	374		374
Investments, at fair value, ending balance				374	[2],[7]	374	[1],[3]
Investment, Identifier [Axis]: Certus Pest, Inc., One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	235		235
Investments, at fair value, ending balance				235	[2],[7]	235	[1],[3]
Investment, Identifier [Axis]: Channelside Acquisitona Co, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,199		4,199
Investments, at fair value, ending balance				4,229	[2],[7]	4,199	[1],[3]
Investment, Identifier [Axis]: Channelside Acquisitona Co, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5		5
Investments, at fair value, ending balance				0	[2],[7],[12]	5	[1],[3]
Investment, Identifier [Axis]: Channelside Acquisitona Co, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				3,968	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Channelside Acquisitona Co, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			0
Investment, Identifier [Axis]: Chase Industries, Inc., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[19]	9,853		9,853
Investments, at fair value, ending balance				11,004	[2],[7],[13],[27]	9,853	[1],[3],[19]
Investment, Identifier [Axis]: Chase Industries, Inc., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[19]	805		805
Investments, at fair value, ending balance				900	[2],[7],[13],[27]	805	[1],[3],[19]
Investment, Identifier [Axis]: Chase Industries, Inc., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[19]	280		280
Investments, at fair value, ending balance				138	[2],[7],[13],[27]	280	[1],[3],[19]
Investment, Identifier [Axis]: Chase Intermediate, LP units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	59		59
Investments, at fair value, ending balance				56	[2],[7]	59	[1],[3]
Investment, Identifier [Axis]: Chase Intermediate, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,702		9,702
Investments, at fair value, ending balance				10,601	[2],[7],[15]	9,702	[1],[3]
Investment, Identifier [Axis]: Chase Intermediate, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(7)		(7)
Investments, at fair value, ending balance				113	[2],[7]	(7)	[1],[3],[11]
Investment, Identifier [Axis]: Chase Intermediate, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(24)		(24)
Investments, at fair value, ending balance				(4)	[2],[7],[12]	(24)	[1],[3],[11]
Investment, Identifier [Axis]: Chase Intermediate, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(5)
Investment, Identifier [Axis]: Citrin Cooperman Advisors LLC, One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,996		2,996
Investments, at fair value, ending balance	[1],[3]					2,996
Investment, Identifier [Axis]: Citrin Cooperman Advisors LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			4,203
Investment, Identifier [Axis]: Citrin Cooperman Advisors LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			0
Investment, Identifier [Axis]: Citrin Cooperman Advisors LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			2,334
Investment, Identifier [Axis]: CivicPlus, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	6,112		6,112
Investments, at fair value, ending balance				6,256	[2],[7],[13]	6,112	[1],[3]
Investment, Identifier [Axis]: CivicPlus, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,610		3,610
Investments, at fair value, ending balance				3,695	[2],[7],[13]	3,610	[1],[3]
Investment, Identifier [Axis]: CivicPlus, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,865		2,865
Investments, at fair value, ending balance				2,932	[2],[7],[13]	2,865	[1],[3]
Investment, Identifier [Axis]: CivicPlus, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	200		200
Investments, at fair value, ending balance				232	[2],[7],[13]	200	[1],[3]
Investment, Identifier [Axis]: CivicPlus, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance				6	[2],[7]	(1)	[1],[3],[11]
Investment, Identifier [Axis]: Cloudbees, Inc., Preferred stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,905		1,905
Investments, at fair value, ending balance				1,665	[2],[7]	1,905	[1],[3]
Investment, Identifier [Axis]: Cloudbees, Inc., Preferred stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	877		877
Investments, at fair value, ending balance				688	[2],[7]	877	[1],[3]
Investment, Identifier [Axis]: Cloudbees, Inc., Warrant
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,342		1,342
Investments, at fair value, ending balance				986	[2],[7]	1,342	[1],[3]
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	10,096		10,096
Investments, at fair value, ending balance				10,310	[2],[7]	10,096	[1],[3]
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	32		32
Investments, at fair value, ending balance				10	[2],[7]	32	[1],[3]
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,062		3,062
Investments, at fair value, ending balance				3,457	[2],[7]	3,062	[1],[3]
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			2,604
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., Preferred stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8,840		8,840
Investments, at fair value, ending balance				10,241	[2],[7],[18]	8,840	[1],[3]
Investment, Identifier [Axis]: Cobalt Buyer Sub, Inc., Preferred stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	154		154
Investments, at fair value, ending balance				167	[2],[7]	154	[1],[3]
Investment, Identifier [Axis]: Cobepa BlueSky Aggregator, SCSp, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,536		1,536
Investments, at fair value, ending balance				1,315	[2],[7]	1,536	[1],[3]
Investment, Identifier [Axis]: Coding Solutions Acquisition, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5,143		5,143
Investments, at fair value, ending balance				5,014	[2],[7]	5,143	[1],[3]
Investment, Identifier [Axis]: Coding Solutions Acquisition, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9		9
Investments, at fair value, ending balance				12	[2],[7]	9	[1],[3]
Investment, Identifier [Axis]: Coding Solutions Acquisition, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(31)		(31)
Investments, at fair value, ending balance				1,516	[2],[7]	(31)	[1],[3],[11]
Investment, Identifier [Axis]: Coding Solutions Acquisition, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			616
Investment, Identifier [Axis]: Coding Solutions Acquisition, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(28)
Investment, Identifier [Axis]: Color Intermediate, LLC., One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			11,315
Investment, Identifier [Axis]: Community Brands Parentco LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	13,911		13,911
Investments, at fair value, ending balance				13,771	[2],[7]	13,911	[3]
Investment, Identifier [Axis]: Community Brands Parentco LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[11]	(1)		(1)
Investments, at fair value, ending balance				(1)	[2],[7],[12]	(1)	[3],[11]
Investment, Identifier [Axis]: Community Brands Parentco LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[11]	(2)		(2)
Investments, at fair value, ending balance				(2)	[2],[7],[12]	(2)	[3],[11]
Investment, Identifier [Axis]: Community Care Partners, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,325		2,325
Investments, at fair value, ending balance				2,186	[2],[7]	2,325	[1],[3]
Investment, Identifier [Axis]: Community Care Partners, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(3)		(3)
Investments, at fair value, ending balance				0	[2],[7],[12]	(3)	[1],[3],[11]
Investment, Identifier [Axis]: Connexin Software, Inc., LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	208		208
Investments, at fair value, ending balance				222	[2],[7]	208	[1],[3]
Investment, Identifier [Axis]: Connexin Software, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8,619		8,619
Investments, at fair value, ending balance				9,465	[2],[7]	8,619	[1],[3]
Investment, Identifier [Axis]: Connexin Software, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				20	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Consilio Midco Limited, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[21]	11,192		11,192
Investments, at fair value, ending balance				11,307	[2],[7],[10],[23]	11,192	[1],[3],[6],[21]
Investment, Identifier [Axis]: Consilio Midco Limited, One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[23]			7
Investment, Identifier [Axis]: Consilio Midco Limited, One stop 11
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[23]			64
Investment, Identifier [Axis]: Consilio Midco Limited, One stop 12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[23]			15
Investment, Identifier [Axis]: Consilio Midco Limited, One stop 13
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[23]			28
Investment, Identifier [Axis]: Consilio Midco Limited, One stop 14
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[23]			17
Investment, Identifier [Axis]: Consilio Midco Limited, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[21]	9,676		9,676
Investments, at fair value, ending balance				9,776	[2],[10],[15],[23]	9,676	[1],[3],[6],[21]
Investment, Identifier [Axis]: Consilio Midco Limited, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	8,271		8,271
Investments, at fair value, ending balance				8,819	[2],[7],[10],[22],[23]	8,271	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Consilio Midco Limited, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[21]	2,093		2,093
Investments, at fair value, ending balance				2,115	[2],[10],[15],[23]	2,093	[1],[3],[6],[21]
Investment, Identifier [Axis]: Consilio Midco Limited, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[21]	1,392		1,392
Investments, at fair value, ending balance				1,406	[2],[10],[15],[23]	1,392	[1],[3],[6],[21]
Investment, Identifier [Axis]: Consilio Midco Limited, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[21]	712		712
Investments, at fair value, ending balance				719	[2],[7],[10],[23]	712	[1],[3],[6],[21]
Investment, Identifier [Axis]: Consilio Midco Limited, One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[11],[21]	(3)		(3)
Investments, at fair value, ending balance				99	[2],[7],[10],[23]	(3)	[1],[3],[6],[11],[21]
Investment, Identifier [Axis]: Consilio Midco Limited, One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	33		33
Investments, at fair value, ending balance				(1)	[2],[7],[10],[12],[22],[23]	33	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Consilio Midco Limited, One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[21]	0		0
Investments, at fair value, ending balance				8	[2],[7],[10],[23]	0	[1],[3],[6],[21]
Investment, Identifier [Axis]: Coupa Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			22,332
Investment, Identifier [Axis]: Coupa Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(1)
Investment, Identifier [Axis]: Coupa Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(51)
Investment, Identifier [Axis]: Covaris Intermediate 3, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5,909		5,909
Investments, at fair value, ending balance				5,557	[2],[7]	5,909	[1],[3]
Investment, Identifier [Axis]: Covaris Intermediate 3, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	18		18
Investments, at fair value, ending balance				(3)	[2],[7],[12]	18	[1],[3]
Investment, Identifier [Axis]: Covaris Intermediate 3, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				25	[2],[7]	0	[1],[3],[11]
Investment, Identifier [Axis]: Covercraft Parent III, Inc., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,890		4,890
Investments, at fair value, ending balance				4,647	[2],[7]	4,890	[1],[3]
Investment, Identifier [Axis]: Covercraft Parent III, Inc., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	994		994
Investments, at fair value, ending balance				938	[2],[7]	994	[1],[3]
Investment, Identifier [Axis]: Covercraft Parent III, Inc., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				9	[2],[7]	0	[1],[3],[11]
Investment, Identifier [Axis]: Critical Start, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	225		225
Investments, at fair value, ending balance				269	[2],[7]	225	[1],[3]
Investment, Identifier [Axis]: Critical Start, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,219		3,219
Investments, at fair value, ending balance				3,310	[2],[7],[13]	3,219	[1],[3]
Investment, Identifier [Axis]: Critical Start, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance				1,510	[2],[7],[13]	(1)	[1],[3],[11]
Investment, Identifier [Axis]: Critical Start, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(1)
Investment, Identifier [Axis]: Crow River Buyer, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			4,631
Investment, Identifier [Axis]: Crow River Buyer, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			0
Investment, Identifier [Axis]: Cycle Gear, Inc., LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	602		602
Investments, at fair value, ending balance				0	[2],[7]	602	[1],[3]
Investment, Identifier [Axis]: Cycle Gear, Inc., One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	47,874		47,874
Investments, at fair value, ending balance				44,135	[2],[7],[8],[15]	47,874	[1],[3],[4],[14]
Investment, Identifier [Axis]: Cycle Gear, Inc., Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			79
Investment, Identifier [Axis]: Cynet Security Ltd, Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[28]	508		508
Investments, at fair value, ending balance				612	[2],[7],[10],[29]	508	[1],[3],[6],[28]
Investment, Identifier [Axis]: DCA Investment Holding, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2]			22
Investment, Identifier [Axis]: DCA Investment Holding, LLC, LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1]	1,809		1,809
Investments, at fair value, ending balance	[1]					1,809
Investment, Identifier [Axis]: DCA Investment Holding, LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1]	905		905
Investments, at fair value, ending balance	[1]					905
Investment, Identifier [Axis]: DCA Investment Holding, LLC, Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[18]			1,214
Investment, Identifier [Axis]: DISA Holdings Corp., One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			151
Investment, Identifier [Axis]: DISA Holdings Corp., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,227		2,227
Investments, at fair value, ending balance				3,477	[2],[7]	2,227	[1],[3]
Investment, Identifier [Axis]: DISA Holdings Corp., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2		2
Investments, at fair value, ending balance				7	[2],[7]	2	[1],[3]
Investment, Identifier [Axis]: DISA Holdings Corp., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(6)		(6)
Investments, at fair value, ending balance				220	[2],[7]	(6)	[1],[3],[11]
Investment, Identifier [Axis]: DISA Holdings Corp., Subordinated debt
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13]			51
Investment, Identifier [Axis]: DP Flores Holdings, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	70		70
Investments, at fair value, ending balance				79	[2],[7]	70	[1],[3]
Investment, Identifier [Axis]: DP Flores Holdings, LLC., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,548		2,548
Investments, at fair value, ending balance				2,574	[2],[15]	2,548	[1],[3]
Investment, Identifier [Axis]: DP Flores Holdings, LLC., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance				0	[2],[7],[12]	(2)	[1],[3],[11]
Investment, Identifier [Axis]: DP Flores Holdings, LLC., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(15)		(15)
Investments, at fair value, ending balance				0	[2],[7],[12]	(15)	[1],[3],[11]
Investment, Identifier [Axis]: DP Flores Holdings, LLC., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance	[1],[3]					0
Investment, Identifier [Axis]: DP Flores Holdings, LLC., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance	[1],[3],[11]					0
Investment, Identifier [Axis]: Datix Bidco Limited, Second lien
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	16,748		16,748
Investments, at fair value, ending balance				19,171	[2],[7],[10],[22],[23]	16,748	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Datix Bidco Limited, Senior secured
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	47,200		47,200
Investments, at fair value, ending balance				53,757	[2],[7],[10],[22],[23]	47,200	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Davidson Hotel Company, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	7,096		7,096
Investments, at fair value, ending balance				5,468	[2],[7]	7,096	[1],[3]
Investment, Identifier [Axis]: Davidson Hotel Company, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,092		1,092
Investments, at fair value, ending balance				844	[2],[7]	1,092	[1],[3]
Investment, Identifier [Axis]: Davidson Hotel Company, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Daxko Acquisition Corporation, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	26,879		26,879
Investments, at fair value, ending balance				26,334	[2],[7]	26,879	[3]
Investment, Identifier [Axis]: Daxko Acquisition Corporation, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3]	2,267		2,267
Investments, at fair value, ending balance				2,221	[2],[7]	2,267	[3]
Investment, Identifier [Axis]: Daxko Acquisition Corporation, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[3],[11]	(5)		(5)
Investments, at fair value, ending balance				17	[2],[7]	(5)	[3],[11]
Investment, Identifier [Axis]: Daxko Acquisition Corporation, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(33)		(33)
Investments, at fair value, ending balance				(44)	[2],[7],[12]	(33)	[1],[3],[11]
Investment, Identifier [Axis]: Delinea Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	15,420		15,420
Investments, at fair value, ending balance				16,084	[2],[7]	15,420	[1],[3]
Investment, Identifier [Axis]: Delinea Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	8,915		8,915
Investments, at fair value, ending balance				9,299	[2],[15]	8,915	[1],[14]
Investment, Identifier [Axis]: Delinea Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	104		104
Investments, at fair value, ending balance				(4)	[2],[7],[12]	104	[1],[3]
Investment, Identifier [Axis]: Denali Bidco Limited, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[23]			335
Investment, Identifier [Axis]: Denali Bidco Limited, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[23]			2,844
Investment, Identifier [Axis]: Denali Bidco Limited, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[23]			714
Investment, Identifier [Axis]: Denali Bidco Limited, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[12],[22],[23]			(13)
Investment, Identifier [Axis]: Denali Midco 2, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	41,579		41,579
Investments, at fair value, ending balance				41,583	[2],[7],[8],[15]	41,579	[1],[3],[4],[14]
Investment, Identifier [Axis]: Denali Midco 2, LLC, One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	116		116
Investments, at fair value, ending balance				116	[2],[7]	116	[1],[3]
Investment, Identifier [Axis]: Denali Midco 2, LLC, One stop 11
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	111		111
Investments, at fair value, ending balance				111	[2],[7]	111	[1],[3]
Investment, Identifier [Axis]: Denali Midco 2, LLC, One stop 12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	80		80
Investments, at fair value, ending balance				80	[2],[7]	80	[1],[3]
Investment, Identifier [Axis]: Denali Midco 2, LLC, One stop 13
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(29)		(29)
Investments, at fair value, ending balance				(3)	[2],[7],[12]	(29)	[1],[3],[11]
Investment, Identifier [Axis]: Denali Midco 2, LLC, One stop 14
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			128
Investment, Identifier [Axis]: Denali Midco 2, LLC, One stop 15
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			64
Investment, Identifier [Axis]: Denali Midco 2, LLC, One stop 16
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			218
Investment, Identifier [Axis]: Denali Midco 2, LLC, One stop 17
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			258
Investment, Identifier [Axis]: Denali Midco 2, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(15)		(15)
Investments, at fair value, ending balance				(10)	[2],[7],[12]	(15)	[1],[3],[11]
Investment, Identifier [Axis]: Denali Midco 2, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	192		192
Investments, at fair value, ending balance				192	[2],[7]	192	[1],[3]
Investment, Identifier [Axis]: Denali Midco 2, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	97		97
Investments, at fair value, ending balance				97	[2],[7]	97	[1],[3]
Investment, Identifier [Axis]: Denali Midco 2, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	77		77
Investments, at fair value, ending balance				77	[2],[7]	77	[1],[3]
Investment, Identifier [Axis]: Denali Midco 2, LLC, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	77		77
Investments, at fair value, ending balance				77	[2],[7]	77	[1],[3]
Investment, Identifier [Axis]: Denali Midco 2, LLC, One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	64		64
Investments, at fair value, ending balance				64	[2],[7]	64	[1],[3]
Investment, Identifier [Axis]: Denali Midco 2, LLC, One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	949		949
Investments, at fair value, ending balance				959	[2],[7]	949	[1],[3]
Investment, Identifier [Axis]: Denali Midco 2, LLC, One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	640		640
Investments, at fair value, ending balance				640	[2],[7]	640	[1],[3]
Investment, Identifier [Axis]: Diligent Corporation, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	85,426		85,426
Investments, at fair value, ending balance				84,553	[2],[7],[8],[15]	85,426	[1],[3],[4],[14]
Investment, Identifier [Axis]: Diligent Corporation, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5,832		5,832
Investments, at fair value, ending balance				5,800	[2],[7]	5,832	[1],[3]
Investment, Identifier [Axis]: Diligent Corporation, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	158		158
Investments, at fair value, ending balance				130	[2],[7]	158	[1],[3]
Investment, Identifier [Axis]: Diligent Corporation, Preferred stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	18,299		18,299
Investments, at fair value, ending balance				19,404	[2],[7],[18]	18,299	[1],[3]
Investment, Identifier [Axis]: Diligent Corporation, Preferred stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,088		2,088
Investments, at fair value, ending balance				2,024	[2],[7]	2,088	[1],[3]
Investment, Identifier [Axis]: Disco Parent, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			3,968
Investment, Identifier [Axis]: Disco Parent, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(1)
Investment, Identifier [Axis]: Dollfus Mieg Company, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[21]	1,817		1,817
Investments, at fair value, ending balance				1,856	[2],[7],[10],[23]	1,817	[1],[3],[6],[21]
Investment, Identifier [Axis]: Dollfus Mieg Company, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[21]	906		906
Investments, at fair value, ending balance				925	[2],[7],[10],[23]	906	[1],[3],[6],[21]
Investment, Identifier [Axis]: Dollfus Mieg Company, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[21]	796		796
Investments, at fair value, ending balance				813	[2],[7],[10],[23]	796	[1],[3],[6],[21]
Investment, Identifier [Axis]: Dollfus Mieg Company, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[11],[20],[21]	(3)		(3)
Investments, at fair value, ending balance				0	[2],[7],[10],[22],[23]	(3)	[1],[3],[6],[11],[20],[21]
Investment, Identifier [Axis]: Dragon UK Bidco Limited, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	12,161		12,161
Investments, at fair value, ending balance				13,715	[2],[7],[10],[22],[23]	12,161	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Dragon UK Bidco Limited, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	261		261
Investments, at fair value, ending balance				274	[2],[7],[10],[22],[23]	261	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Dragon UK Bidco Limited, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[11],[20],[21]	(6)		(6)
Investments, at fair value, ending balance				(3)	[2],[7],[10],[12],[22],[23]	(6)	[1],[3],[6],[11],[20],[21]
Investment, Identifier [Axis]: Dwyer Instruments, Inc, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,844		3,844
Investments, at fair value, ending balance				3,883	[2],[7]	3,844	[1],[3]
Investment, Identifier [Axis]: Dwyer Instruments, Inc, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	6		6
Investments, at fair value, ending balance				12	[2],[7]	6	[1],[3]
Investment, Identifier [Axis]: Dwyer Instruments, Inc, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(10)		(10)
Investments, at fair value, ending balance				0	[2],[7],[12]	(10)	[1],[3],[11]
Investment, Identifier [Axis]: EGD Security Systems, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	803		803
Investments, at fair value, ending balance				1,224	[2],[7]	803	[1],[3]
Investment, Identifier [Axis]: EMS LINQ, LLC, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	483		483
Investments, at fair value, ending balance				408	[2],[7]	483	[1],[3]
Investment, Identifier [Axis]: EMS LINQ, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,495		9,495
Investments, at fair value, ending balance				9,304	[2],[7]	9,495	[1],[3]
Investment, Identifier [Axis]: EMS LINQ, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance				(4)	[2],[7],[12]	(1)	[1],[3],[11]
Investment, Identifier [Axis]: EOS Fitness Opco Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	9,393		9,393
Investments, at fair value, ending balance				9,156	[2],[7],[8],[15]	9,393	[1],[3],[4],[14]
Investment, Identifier [Axis]: EOS Fitness Opco Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	896		896
Investments, at fair value, ending balance				874	[2],[7]	896	[1],[3]
Investment, Identifier [Axis]: EOS Fitness Opco Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8		8
Investments, at fair value, ending balance				104	[2],[7]	8	[1],[3]
Investment, Identifier [Axis]: EOS Fitness Opco Holdings, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				869	[2],[7]	0	[1],[3],[11]
Investment, Identifier [Axis]: ERC Topco Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,259		9,259
Investments, at fair value, ending balance				7,566	[2],[7]	9,259	[1],[3]
Investment, Identifier [Axis]: ERC Topco Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(5)		(5)
Investments, at fair value, ending balance				37	[2],[7]	(5)	[1],[3],[11]
Investment, Identifier [Axis]: ERC Topco Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(7)		(7)
Investments, at fair value, ending balance	[1],[3],[11]					(7)
Investment, Identifier [Axis]: ESN Venture Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[8]			3,625
Investment, Identifier [Axis]: ESN Venture Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			16
Investment, Identifier [Axis]: ESN Venture Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			168
Investment, Identifier [Axis]: ESO Solution, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	7,549		7,549
Investments, at fair value, ending balance				7,474	[2],[7]	7,549	[1],[3]
Investment, Identifier [Axis]: ESO Solution, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				42	[2],[7]	0	[1],[3],[11]
Investment, Identifier [Axis]: EWC Growth Partners LLC, LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5		5
Investments, at fair value, ending balance				2	[2],[7]	5	[1],[3]
Investment, Identifier [Axis]: EWC Growth Partners LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	920		920
Investments, at fair value, ending balance				920	[2],[7]	920	[1],[3]
Investment, Identifier [Axis]: EWC Growth Partners LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	73		73
Investments, at fair value, ending balance				0	[2],[7]	73	[1],[3]
Investment, Identifier [Axis]: EWC Growth Partners LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	14		14
Investments, at fair value, ending balance				14	[2],[7]	14	[1],[3]
Investment, Identifier [Axis]: EWC Growth Partners LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			73
Investment, Identifier [Axis]: Electrical Source Holdings, LLC, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	77		77
Investments, at fair value, ending balance	[1],[3]					77
Investment, Identifier [Axis]: Electrical Source Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	75,982		75,982
Investments, at fair value, ending balance	[1],[3],[4],[14]					75,982
Investment, Identifier [Axis]: Electrical Source Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	19,780		19,780
Investments, at fair value, ending balance	[1],[3]					19,780
Investment, Identifier [Axis]: Electrical Source Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,752		1,752
Investments, at fair value, ending balance	[1],[3]					1,752
Investment, Identifier [Axis]: Electrical Source Holdings, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance	[1],[3],[11]					0
Investment, Identifier [Axis]: Electrical Source Holdings, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,305		2,305
Investments, at fair value, ending balance	[1],[3]					2,305
Investment, Identifier [Axis]: Electrical Source Holdings, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	648		648
Investments, at fair value, ending balance	[1],[3]					648
Investment, Identifier [Axis]: Electrical Source Holdings, LLC, Senior secured 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	17		17
Investments, at fair value, ending balance	[1],[3]					17
Investment, Identifier [Axis]: Electrical Source Holdings, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	137		137
Investments, at fair value, ending balance	[1],[3]					137
Investment, Identifier [Axis]: Electrical Source Holdings, LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	94		94
Investments, at fair value, ending balance	[1],[3]					94
Investment, Identifier [Axis]: Electrical Source Holdings, LLC, Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	89		89
Investments, at fair value, ending balance	[1],[3]					89
Investment, Identifier [Axis]: Electrical Source Holdings, LLC, Senior secured 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	88		88
Investments, at fair value, ending balance	[1],[3]					88
Investment, Identifier [Axis]: Electrical Source Holdings, LLC, Senior secured 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance	[1],[3],[11]					0
Investment, Identifier [Axis]: Electrical Source Holdings, LLC, Senior secured 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	46		46
Investments, at fair value, ending balance	[1],[3]					46
Investment, Identifier [Axis]: Electrical Source Holdings, LLC, Senior secured 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	41		41
Investments, at fair value, ending balance	[1],[3]					41
Investment, Identifier [Axis]: Electrical Source Holdings, LLC, Senior secured 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	35		35
Investments, at fair value, ending balance	[1],[3]					35
Investment, Identifier [Axis]: Eliassen Group, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,444		1,444
Investments, at fair value, ending balance				1,430	[2],[7]	1,444	[1],[3]
Investment, Identifier [Axis]: Eliassen Group, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4		4
Investments, at fair value, ending balance				9	[2],[7]	4	[1],[3]
Investment, Identifier [Axis]: Elite Dental Partners LLC
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance		20,689		20,689		16,952
Gross additions		4,151		4,308
Gross reductions		(60)		(1,147)
Net change in unrealized appreciation (depreciation)		(354)		(10,454)
Net realized gain (loss)		0		0
Investments, at fair value, ending balance				13,396		20,689		16,952
Interest, dividend and fee income				1,005		1,313
Investment, Identifier [Axis]: Elite Dental Partners LLC, LLC interest 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1]	4,042		4,042
Investments, at fair value, ending balance				0	[2]	4,042	[1]
Investment, Identifier [Axis]: Elite Dental Partners LLC, LLC interest 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1]	1,235		1,235
Investments, at fair value, ending balance				0	[2]	1,235	[1]
Investment, Identifier [Axis]: Elite Dental Partners LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1]	0		0
Investments, at fair value, ending balance				0	[2]	0	[1]
Investment, Identifier [Axis]: Elite Dental Partners LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	11,182		11,182
Investments, at fair value, ending balance				7,533	[2],[7],[13],[16]	11,182	[1],[3]
Investment, Identifier [Axis]: Elite Dental Partners LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,961		2,961
Investments, at fair value, ending balance				4,463	[2],[7],[13],[16]	2,961	[1],[3]
Investment, Identifier [Axis]: Elite Dental Partners LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,269		1,269
Investments, at fair value, ending balance				1,400	[2],[7],[13]	1,269	[1],[3]
Investment, Identifier [Axis]: Elite Sportswear, L.P., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8,470		8,470
Investments, at fair value, ending balance				9,577	[2],[7],[13]	8,470	[1],[3]
Investment, Identifier [Axis]: Elite Sportswear, L.P., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,404		3,404
Investments, at fair value, ending balance				3,848	[2],[7],[13]	3,404	[1],[3]
Investment, Identifier [Axis]: Elite Sportswear, L.P., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,751		1,751
Investments, at fair value, ending balance				1,981	[2],[7],[13]	1,751	[1],[3]
Investment, Identifier [Axis]: Elite Sportswear, L.P., Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(5)		(5)
Investments, at fair value, ending balance				70	[2],[7],[13]	(5)	[1],[3],[11]
Investment, Identifier [Axis]: Elite Sportswear, L.P., Senior secured 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	582		582
Investments, at fair value, ending balance				657	[2],[7],[8],[13]	582	[1],[3],[4]
Investment, Identifier [Axis]: Elite Sportswear, L.P., Senior secured 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	266		266
Investments, at fair value, ending balance				301	[2],[7],[13]	266	[1],[3]
Investment, Identifier [Axis]: Elite Sportswear, L.P., Senior secured 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	255		255
Investments, at fair value, ending balance				288	[2],[7],[8],[13]	255	[1],[3],[4]
Investment, Identifier [Axis]: Elite Sportswear, L.P., Senior secured 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				2	[2],[7],[13]	0	[1],[3]
Investment, Identifier [Axis]: Emerge Intermediate, Inc., LLC units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	841		841
Investments, at fair value, ending balance				507	[2],[7]	841	[1],[3]
Investment, Identifier [Axis]: Emerge Intermediate, Inc., LLC units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	64		64
Investments, at fair value, ending balance				76	[2],[7]	64	[1],[3]
Investment, Identifier [Axis]: Emerge Intermediate, Inc., LLC units 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Emerge Intermediate, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	19,277		19,277
Investments, at fair value, ending balance				19,231	[2],[8],[13],[15]	19,277	[1],[4],[14]
Investment, Identifier [Axis]: Emerge Intermediate, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,745		1,745
Investments, at fair value, ending balance				1,741	[2],[7],[13]	1,745	[1],[3]
Investment, Identifier [Axis]: Emerge Intermediate, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				134	[2],[7],[13]	0	[1],[3],[11]
Investment, Identifier [Axis]: Enboarder, Inc., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[30]	620		620
Investments, at fair value, ending balance				573	[2],[7],[10],[31]	620	[1],[3],[6],[30]
Investment, Identifier [Axis]: Encore GC Acquisition, LLC, LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Encore GC Acquisition, LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Encorevet Group LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	21		21
Investments, at fair value, ending balance				16	[2],[7]	21	[1],[3]
Investment, Identifier [Axis]: Encorevet Group LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	13		13
Investments, at fair value, ending balance				9	[2],[7]	13	[1],[3]
Investment, Identifier [Axis]: Encorevet Group LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	965		965
Investments, at fair value, ending balance				945	[2],[7]	965	[1],[3]
Investment, Identifier [Axis]: Encorevet Group LLC, One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance	[1],[3],[11]					0
Investment, Identifier [Axis]: Encorevet Group LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	607		607
Investments, at fair value, ending balance				594	[2],[7]	607	[1],[3]
Investment, Identifier [Axis]: Encorevet Group LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	301		301
Investments, at fair value, ending balance				295	[2],[7]	301	[1],[3]
Investment, Identifier [Axis]: Encorevet Group LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	288		288
Investments, at fair value, ending balance				282	[2],[7]	288	[1],[3]
Investment, Identifier [Axis]: Encorevet Group LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	261		261
Investments, at fair value, ending balance				256	[2],[7]	261	[1],[3]
Investment, Identifier [Axis]: Encorevet Group LLC, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	160		160
Investments, at fair value, ending balance				156	[2],[7]	160	[1],[3]
Investment, Identifier [Axis]: Encorevet Group LLC, One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	112		112
Investments, at fair value, ending balance				110	[2],[7]	112	[1],[3]
Investment, Identifier [Axis]: Encorevet Group LLC, One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	55		55
Investments, at fair value, ending balance				54	[2],[7]	55	[1],[3]
Investment, Identifier [Axis]: Encorevet Group LLC, One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	32		32
Investments, at fair value, ending balance				31	[2],[7]	32	[1],[3]
Investment, Identifier [Axis]: Encorevet Group LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	239		239
Investments, at fair value, ending balance				235	[2],[7]	239	[1],[3]
Investment, Identifier [Axis]: Encorevet Group LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	107		107
Investments, at fair value, ending balance				105	[2],[7]	107	[1],[3]
Investment, Identifier [Axis]: Encorevet Group LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	67		67
Investments, at fair value, ending balance				66	[2],[7]	67	[1],[3]
Investment, Identifier [Axis]: Encorevet Group LLC, Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	56		56
Investments, at fair value, ending balance				54	[2],[7]	56	[1],[3]
Investment, Identifier [Axis]: Encorevet Group LLC, Senior secured 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	10		10
Investments, at fair value, ending balance				9	[2],[7]	10	[1],[3]
Investment, Identifier [Axis]: Encorevet Group LLC, Senior secured 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance				45	[2],[7]	(1)	[1],[3],[11]
Investment, Identifier [Axis]: Envernus, Inc., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	36,097		36,097
Investments, at fair value, ending balance				38,259	[2],[7],[8],[15]	36,097	[1],[3],[4],[14]
Investment, Identifier [Axis]: Envernus, Inc., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	16,653		16,653
Investments, at fair value, ending balance				16,960	[2],[7]	16,653	[1],[3]
Investment, Identifier [Axis]: Envernus, Inc., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	82		82
Investments, at fair value, ending balance				66	[2],[7]	82	[1],[3]
Investment, Identifier [Axis]: Envernus, Inc., Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	67		67
Investments, at fair value, ending balance	[1],[3]					67
Investment, Identifier [Axis]: Episerver, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	655		655
Investments, at fair value, ending balance	[1],[3]					655
Investment, Identifier [Axis]: Episerver, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	20,635		20,635
Investments, at fair value, ending balance	[1],[3]					20,635
Investment, Identifier [Axis]: Episerver, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20]	16,976		16,976
Investments, at fair value, ending balance	[1],[3],[6],[20]					16,976
Investment, Identifier [Axis]: Episerver, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	11,460		11,460
Investments, at fair value, ending balance	[1],[3],[14]					11,460
Investment, Identifier [Axis]: Episerver, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	6,337		6,337
Investments, at fair value, ending balance	[1],[3]					6,337
Investment, Identifier [Axis]: Episerver, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(22)		(22)
Investments, at fair value, ending balance	[1],[3],[11]					(22)
Investment, Identifier [Axis]: Episerver, Inc., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(20)		(20)
Investments, at fair value, ending balance	[1],[3],[11]					(20)
Investment, Identifier [Axis]: Essential Services Holdings Corporation, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	789		789
Investments, at fair value, ending balance				1,455	[2],[7]	789	[1],[3]
Investment, Identifier [Axis]: Essential Services Holdings Corporation, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance				(2)	[2],[7],[12]	(2)	[1],[3],[11]
Investment, Identifier [Axis]: Evergreen IX Borrower 2023, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			4,393
Investment, Identifier [Axis]: Evergreen IX Borrower 2023, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(12)
Investment, Identifier [Axis]: Excelitas Technologies Corp, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	7,060		7,060
Investments, at fair value, ending balance				7,480	[2],[7]	7,060	[1],[3]
Investment, Identifier [Axis]: Excelitas Technologies Corp, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20]	1,144		1,144
Investments, at fair value, ending balance				1,224	[2],[7],[10],[22]	1,144	[1],[3],[6],[20]
Investment, Identifier [Axis]: Excelitas Technologies Corp, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	89		89
Investments, at fair value, ending balance				130	[2],[7]	89	[1],[3]
Investment, Identifier [Axis]: Excelitas Technologies Corp, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(14)		(14)
Investments, at fair value, ending balance				(9)	[2],[7],[12]	(14)	[1],[3],[11]
Investment, Identifier [Axis]: Excelligence Learning Corporation, One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	10,240		10,240
Investments, at fair value, ending balance				10,176	[2],[7],[15]	10,240	[1],[3],[14]
Investment, Identifier [Axis]: Eyecare Services Partners Holdings LLC, LLC units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance	[1],[3]					0
Investment, Identifier [Axis]: Eyecare Services Partners Holdings LLC, LLC units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance	[1],[3]					0
Investment, Identifier [Axis]: Eyecare Services Partners Holdings LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	12,720		12,720
Investments, at fair value, ending balance	[1],[3]					12,720
Investment, Identifier [Axis]: Eyecare Services Partners Holdings LLC, One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	451		451
Investments, at fair value, ending balance	[1],[3],[4]					451
Investment, Identifier [Axis]: Eyecare Services Partners Holdings LLC, One stop 11
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	278		278
Investments, at fair value, ending balance	[1],[3]					278
Investment, Identifier [Axis]: Eyecare Services Partners Holdings LLC, One stop 12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	837		837
Investments, at fair value, ending balance	[1],[3]					837
Investment, Identifier [Axis]: Eyecare Services Partners Holdings LLC, One stop 13
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	544		544
Investments, at fair value, ending balance	[1],[3]					544
Investment, Identifier [Axis]: Eyecare Services Partners Holdings LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	5,580		5,580
Investments, at fair value, ending balance	[1],[3],[4]					5,580
Investment, Identifier [Axis]: Eyecare Services Partners Holdings LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	4,887		4,887
Investments, at fair value, ending balance	[1],[4],[14]					4,887
Investment, Identifier [Axis]: Eyecare Services Partners Holdings LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,596		3,596
Investments, at fair value, ending balance	[1],[3]					3,596
Investment, Identifier [Axis]: Eyecare Services Partners Holdings LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	1,669		1,669
Investments, at fair value, ending balance	[1],[3],[4]					1,669
Investment, Identifier [Axis]: Eyecare Services Partners Holdings LLC, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	1,070		1,070
Investments, at fair value, ending balance	[1],[3],[4]					1,070
Investment, Identifier [Axis]: Eyecare Services Partners Holdings LLC, One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	792		792
Investments, at fair value, ending balance	[1],[4],[14]					792
Investment, Identifier [Axis]: Eyecare Services Partners Holdings LLC, One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	697		697
Investments, at fair value, ending balance	[1],[4],[14]					697
Investment, Identifier [Axis]: Eyecare Services Partners Holdings LLC, One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	613		613
Investments, at fair value, ending balance	[1],[3]					613
Investment, Identifier [Axis]: FPG Intermediate Holdco, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8,756		8,756
Investments, at fair value, ending balance				7,592	[2],[7]	8,756	[1],[3]
Investment, Identifier [Axis]: FPG Intermediate Holdco, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	287		287
Investments, at fair value, ending balance				479	[2],[7]	287	[1],[3]
Investment, Identifier [Axis]: FPG Intermediate Holdco, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(3)		(3)
Investments, at fair value, ending balance				32	[2],[7]	(3)	[1],[3],[11]
Investment, Identifier [Axis]: FPG Intermediate Holdco, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(14)		(14)
Investments, at fair value, ending balance				0	[2],[7],[12]	(14)	[1],[3],[11]
Investment, Identifier [Axis]: FSS Buyer LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5,272		5,272
Investments, at fair value, ending balance				5,436	[2],[7]	5,272	[1],[3]
Investment, Identifier [Axis]: FSS Buyer LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance				0	[2],[7],[12]	(2)	[1],[3],[11]
Investment, Identifier [Axis]: FYI Optical Acquisitions, Inc. & FYI USA, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	11,224		11,224
Investments, at fair value, ending balance				10,516	[2],[7],[9],[10],[22]	11,224	[1],[3],[5],[6],[20]
Investment, Identifier [Axis]: FYI Optical Acquisitions, Inc. & FYI USA, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[11],[20]	0		0
Investments, at fair value, ending balance				82	[2],[7],[9],[10],[22]	0	[1],[3],[5],[6],[11],[20]
Investment, Identifier [Axis]: FYI Optical Acquisitions, Inc. & FYI USA, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	502		502
Investments, at fair value, ending balance				471	[2],[7],[9],[10],[22]	502	[1],[3],[5],[6],[20]
Investment, Identifier [Axis]: FYI Optical Acquisitions, Inc. & FYI USA, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	178		178
Investments, at fair value, ending balance				166	[2],[7],[9],[10],[22]	178	[1],[3],[5],[6],[20]
Investment, Identifier [Axis]: FYI Optical Acquisitions, Inc. & FYI USA, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6]	74		74
Investments, at fair value, ending balance				70	[2],[7],[9],[10]	74	[1],[3],[5],[6]
Investment, Identifier [Axis]: FYI Optical Acquisitions, Inc. & FYI USA, Inc., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[11]	0		0
Investments, at fair value, ending balance				94	[2],[7],[9],[10]	0	[1],[3],[5],[6],[11]
Investment, Identifier [Axis]: FYI Optical Acquisitions, Inc. & FYI USA, Inc., One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	736		736
Investments, at fair value, ending balance				690	[2],[7],[9],[10],[22]	736	[1],[3],[5],[6],[20]
Investment, Identifier [Axis]: Feeders Supply Company, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	181		181
Investments, at fair value, ending balance	[1],[3]					181
Investment, Identifier [Axis]: Feeders Supply Company, LLC, Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[26]	592		592
Investments, at fair value, ending balance	[1],[3],[26]					592
Investment, Identifier [Axis]: Filevine, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5,270		5,270
Investments, at fair value, ending balance				5,454	[2],[7],[13]	5,270	[1],[3]
Investment, Identifier [Axis]: Filevine, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Filevine, Inc., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,479		1,479
Investments, at fair value, ending balance				1,598	[2],[7]	1,479	[1],[3]
Investment, Identifier [Axis]: Filevine, Inc., Warrant
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	153		153
Investments, at fair value, ending balance	[1],[3]					153
Investment, Identifier [Axis]: Filevine, Inc., Warrant 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			171
Investment, Identifier [Axis]: Filevine, Inc., Warrant 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			92
Investment, Identifier [Axis]: Financial Information Technologies, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			22,396
Investment, Identifier [Axis]: Financial Information Technologies, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13]			10,847
Investment, Identifier [Axis]: Financial Information Technologies, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(1)
Investment, Identifier [Axis]: Finastra USA, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10]			4,851
Investment, Identifier [Axis]: Finastra USA, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10]			10
Investment, Identifier [Axis]: Fintech Midco, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[15]	23,624		23,624
Investments, at fair value, ending balance	[1],[4],[15]					23,624
Investment, Identifier [Axis]: Fintech Midco, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	14,998		14,998
Investments, at fair value, ending balance	[1],[3]					14,998
Investment, Identifier [Axis]: Fintech Midco, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[15]	1,094		1,094
Investments, at fair value, ending balance	[1],[3],[15]					1,094
Investment, Identifier [Axis]: Fintech Midco, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance	[1],[3],[11]					(2)
Investment, Identifier [Axis]: FirstUp, Inc, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	361		361
Investments, at fair value, ending balance				317	[2],[7]	361	[1],[3]
Investment, Identifier [Axis]: FirstUp, Inc, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8,916		8,916
Investments, at fair value, ending balance				9,120	[2],[7],[13]	8,916	[1],[3]
Investment, Identifier [Axis]: FirstUp, Inc, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				(1)	[2],[7],[12],[13]	0	[1],[3],[11]
Investment, Identifier [Axis]: FirstUp, Inc, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13]			865
Investment, Identifier [Axis]: Flash Topco, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4]	9,623		9,623
Investments, at fair value, ending balance				9,235	[2],[8]	9,623	[1],[4]
Investment, Identifier [Axis]: Flash Topco, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance				38	[2],[7]	(2)	[1],[3],[11]
Investment, Identifier [Axis]: Flash Topco, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			19
Investment, Identifier [Axis]: Flavor Producers, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	4,851		4,851
Investments, at fair value, ending balance				4,682	[2],[7],[13],[15]	4,851	[1],[3],[14]
Investment, Identifier [Axis]: Flavor Producers, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2		2
Investments, at fair value, ending balance				(2)	[2],[7],[12]	2	[1],[3]
Investment, Identifier [Axis]: Fortis Solutions Group LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	33,346		33,346
Investments, at fair value, ending balance				33,370	[2],[7],[8],[15]	33,346	[1],[3],[4],[14]
Investment, Identifier [Axis]: Fortis Solutions Group LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	17		17
Investments, at fair value, ending balance				(8)	[2],[7],[12]	17	[1],[3]
Investment, Identifier [Axis]: Fortis Solutions Group LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(12)		(12)
Investments, at fair value, ending balance				95	[2],[7]	(12)	[1],[3],[11]
Investment, Identifier [Axis]: Fortis Solutions Group LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(56)		(56)
Investments, at fair value, ending balance				190	[2],[7]	(56)	[1],[3],[11]
Investment, Identifier [Axis]: Franchise Brands plc, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[23],[32]			100
Investment, Identifier [Axis]: Freddy's Frozen Custard LLC, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	285		285
Investments, at fair value, ending balance				369	[2],[7],[18]	285	[1],[3]
Investment, Identifier [Axis]: Freddy's Frozen Custard LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,160		9,160
Investments, at fair value, ending balance	[1],[3]					9,160
Investment, Identifier [Axis]: Freddy's Frozen Custard LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance	[1],[3],[11]					0
Investment, Identifier [Axis]: G & H Wire Company, Inc., LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	16		16
Investments, at fair value, ending balance				54	[2],[7]	16	[1],[3]
Investment, Identifier [Axis]: G & H Wire Company, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	10,911		10,911
Investments, at fair value, ending balance				9,477	[2],[7],[13]	10,911	[1],[3],[14]
Investment, Identifier [Axis]: G & H Wire Company, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	68		68
Investments, at fair value, ending balance				70	[2],[7],[13]	68	[1],[3]
Investment, Identifier [Axis]: GS Acquisitionco, Inc., LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,038		1,038
Investments, at fair value, ending balance				1,044	[2],[7]	1,038	[1],[3]
Investment, Identifier [Axis]: GS Acquisitionco, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	82,603		82,603
Investments, at fair value, ending balance				82,920	[2],[7],[8],[15]	82,603	[1],[3],[4],[14]
Investment, Identifier [Axis]: GS Acquisitionco, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	180		180
Investments, at fair value, ending balance				(2)	[2],[7],[12]	180	[1],[3]
Investment, Identifier [Axis]: GS Acquisitionco, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(40)		(40)
Investments, at fair value, ending balance	[1],[3],[11]					(40)
Investment, Identifier [Axis]: GS Acquisitionco, Inc., Preferred stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	27,141		27,141
Investments, at fair value, ending balance				28,365	[2],[7],[18]	27,141	[1],[3]
Investment, Identifier [Axis]: GS Acquisitionco, Inc., Preferred stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,588		1,588
Investments, at fair value, ending balance				1,660	[2],[7],[18]	1,588	[1],[3]
Investment, Identifier [Axis]: GS Acquisitionco, Inc., Preferred stock 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[18]			49
Investment, Identifier [Axis]: GTIV, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	72,731		72,731
Investments, at fair value, ending balance				73,471	[2],[7]	72,731	[1],[3]
Investment, Identifier [Axis]: GTIV, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(5)		(5)
Investments, at fair value, ending balance				0	[2],[7],[12]	(5)	[1],[3],[11]
Investment, Identifier [Axis]: GTY Technology Holdings, Inc, LP units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	46		46
Investments, at fair value, ending balance				62	[2],[7]	46	[1],[3]
Investment, Identifier [Axis]: GTY Technology Holdings, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,069		3,069
Investments, at fair value, ending balance				3,205	[2],[7],[13]	3,069	[1],[3]
Investment, Identifier [Axis]: GTY Technology Holdings, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance				(1)	[2],[7],[12]	(1)	[1],[3],[11]
Investment, Identifier [Axis]: GTY Technology Holdings, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(24)		(24)
Investments, at fair value, ending balance				2,093	[2],[7],[13]	(24)	[1],[3],[11]
Investment, Identifier [Axis]: GTY Technology Holdings, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13]			384
Investment, Identifier [Axis]: Gainsight, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,847		9,847
Investments, at fair value, ending balance				10,995	[2],[7],[13]	9,847	[1],[3]
Investment, Identifier [Axis]: Gainsight, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance				55	[2],[7],[13]	(1)	[1],[3],[11]
Investment, Identifier [Axis]: Georgica Pine Clothiers, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1		1
Investments, at fair value, ending balance				2	[2],[7]	1	[1],[3]
Investment, Identifier [Axis]: Georgica Pine Clothiers, LLC, LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[26]	511		511
Investments, at fair value, ending balance				525	[2],[7],[18]	511	[1],[3],[26]
Investment, Identifier [Axis]: Georgica Pine Clothiers, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	9,606		9,606
Investments, at fair value, ending balance				9,538	[2],[7]	9,606	[1],[3],[14]
Investment, Identifier [Axis]: Georgica Pine Clothiers, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	6,522		6,522
Investments, at fair value, ending balance				6,458	[2],[7]	6,522	[1],[4],[14]
Investment, Identifier [Axis]: Georgica Pine Clothiers, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,009		1,009
Investments, at fair value, ending balance				999	[2],[7]	1,009	[1],[3]
Investment, Identifier [Axis]: Georgica Pine Clothiers, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	908		908
Investments, at fair value, ending balance				898	[2],[7]	908	[1],[3],[14]
Investment, Identifier [Axis]: Georgica Pine Clothiers, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	636		636
Investments, at fair value, ending balance				630	[2],[7]	636	[1],[4],[14]
Investment, Identifier [Axis]: Georgica Pine Clothiers, LLC, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2		2
Investments, at fair value, ending balance				2	[2],[7]	2	[1],[3]
Investment, Identifier [Axis]: Go Car Wash Parent, Corp., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	36		36
Investments, at fair value, ending balance				40	[2],[7]	36	[1],[3]
Investment, Identifier [Axis]: Go Car Wash Parent, Corp., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	50		50
Investments, at fair value, ending balance				92	[2],[7],[18]	50	[1],[3]
Investment, Identifier [Axis]: Goldcup 31018 AB., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[33]	7,571		7,571
Investments, at fair value, ending balance				8,535	[2],[7],[10],[13],[22],[34]	7,571	[1],[3],[6],[20],[33]
Investment, Identifier [Axis]: Goldcup 31018 AB., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[11],[20],[33]	(2)		(2)
Investments, at fair value, ending balance				(1)	[2],[7],[10],[12],[22],[34]	(2)	[1],[3],[6],[11],[20],[33]
Investment, Identifier [Axis]: Goldcup 31018 AB., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[11],[20],[33]	(16)		(16)
Investments, at fair value, ending balance				790	[2],[7],[10],[13],[22],[34]	(16)	[1],[3],[6],[11],[20],[33]
Investment, Identifier [Axis]: Groundworks LLC, LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	442		442
Investments, at fair value, ending balance	[1],[3]					442
Investment, Identifier [Axis]: Groundworks LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			6,891
Investment, Identifier [Axis]: Groundworks LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			0
Investment, Identifier [Axis]: Groundworks LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			0
Investment, Identifier [Axis]: Groundworks LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,615		4,615
Investments, at fair value, ending balance	[1],[3]					4,615
Investment, Identifier [Axis]: Groundworks LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,805		1,805
Investments, at fair value, ending balance	[1],[3]					1,805
Investment, Identifier [Axis]: Groundworks LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,203		1,203
Investments, at fair value, ending balance	[1],[3]					1,203
Investment, Identifier [Axis]: Groundworks LLC, Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,072		1,072
Investments, at fair value, ending balance	[1],[3]					1,072
Investment, Identifier [Axis]: Groundworks LLC, Senior secured 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	82		82
Investments, at fair value, ending balance	[1],[3]					82
Investment, Identifier [Axis]: Groundworks LLC, Senior secured 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	56		56
Investments, at fair value, ending balance	[1],[3]					56
Investment, Identifier [Axis]: Groundworks LLC, Senior secured 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance	[1],[3]					0
Investment, Identifier [Axis]: HS Spa Holdings, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	460		460
Investments, at fair value, ending balance				496	[2],[7]	460	[1],[3]
Investment, Identifier [Axis]: HS Spa Holdings, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	7,627		7,627
Investments, at fair value, ending balance				7,627	[2],[7]	7,627	[1],[3]
Investment, Identifier [Axis]: HS Spa Holdings, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance				12	[2],[7]	(2)	[1],[3],[11]
Investment, Identifier [Axis]: HSI Halo Acquisition, Inc., LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			130
Investment, Identifier [Axis]: HSI Halo Acquisition, Inc., LP Interest 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	389		389
Investments, at fair value, ending balance	[1],[3]					389
Investment, Identifier [Axis]: HSI Halo Acquisition, Inc., LP Interest 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	45		45
Investments, at fair value, ending balance	[1],[3]					45
Investment, Identifier [Axis]: HSI Halo Acquisition, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	6,025		6,025
Investments, at fair value, ending balance				6,046	[2],[7]	6,025	[1],[3]
Investment, Identifier [Axis]: HSI Halo Acquisition, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,872		2,872
Investments, at fair value, ending balance				2,883	[2],[7]	2,872	[1],[3]
Investment, Identifier [Axis]: HSI Halo Acquisition, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,892		1,892
Investments, at fair value, ending balance				1,899	[2],[7]	1,892	[1],[3]
Investment, Identifier [Axis]: HSI Halo Acquisition, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,320		1,320
Investments, at fair value, ending balance				1,325	[2],[7]	1,320	[1],[3]
Investment, Identifier [Axis]: HSI Halo Acquisition, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	618		618
Investments, at fair value, ending balance				620	[2],[7]	618	[1],[3]
Investment, Identifier [Axis]: HSI Halo Acquisition, Inc., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	11		11
Investments, at fair value, ending balance				76	[2],[7]	11	[1],[3]
Investment, Identifier [Axis]: HSI Halo Acquisition, Inc., One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	128		128
Investments, at fair value, ending balance				129	[2],[7]	128	[1],[3]
Investment, Identifier [Axis]: HSI Halo Acquisition, Inc., One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			485
Investment, Identifier [Axis]: HSI Halo Acquisition, Inc., Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[18]			435
Investment, Identifier [Axis]: Harri US LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	658		658
Investments, at fair value, ending balance				609	[2],[7]	658	[1],[3]
Investment, Identifier [Axis]: Harri US LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	806		806
Investments, at fair value, ending balance				845	[2],[7],[13]	806	[1],[3]
Investment, Identifier [Axis]: Harri US LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Harri US LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	4		4
Investments, at fair value, ending balance				558	[2],[7],[13]	4	[1],[3],[11]
Investment, Identifier [Axis]: Harri US LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13]			573
Investment, Identifier [Axis]: Harri US LLC, Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	512		512
Investments, at fair value, ending balance				512	[2],[7]	512	[1],[3]
Investment, Identifier [Axis]: Harri US LLC, Warrant
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	129		129
Investments, at fair value, ending balance				162	[2],[7]	129	[1],[3]
Investment, Identifier [Axis]: Health Buyer, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,447		2,447
Investments, at fair value, ending balance				2,487	[2],[7]	2,447	[1],[3]
Investment, Identifier [Axis]: Health Buyer, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1		1
Investments, at fair value, ending balance				(1)	[2],[7],[12]	1	[1],[3]
Investment, Identifier [Axis]: Health Buyer, LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			1,142
Investment, Identifier [Axis]: Health Buyer, LLC, Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(7)
Investment, Identifier [Axis]: Heartland Veterinary Partners LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	827		827
Investments, at fair value, ending balance				819	[2],[7]	827	[1],[3]
Investment, Identifier [Axis]: Heartland Veterinary Partners LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	59		59
Investments, at fair value, ending balance				158	[2],[7]	59	[1],[3]
Investment, Identifier [Axis]: Heartland Veterinary Partners LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Higginbotham Insurance Agency, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,531		4,531
Investments, at fair value, ending balance				4,507	[2],[7]	4,531	[1],[3]
Investment, Identifier [Axis]: Higginbotham Insurance Agency, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	24		24
Investments, at fair value, ending balance				(25)	[2],[7],[12]	24	[1],[3]
Investment, Identifier [Axis]: Higginbotham Insurance Agency, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			182
Investment, Identifier [Axis]: Hopdoddy Holdings, LLC, LLC units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	211		211
Investments, at fair value, ending balance				5	[2],[7]	211	[1],[3]
Investment, Identifier [Axis]: Hopdoddy Holdings, LLC, LLC units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	60		60
Investments, at fair value, ending balance				1	[2],[7]	60	[1],[3]
Investment, Identifier [Axis]: Hydraulic Authority III Limited, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	533		533
Investments, at fair value, ending balance	[1],[3],[6],[20],[21]					533
Investment, Identifier [Axis]: Hydraulic Authority III Limited, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	9,675		9,675
Investments, at fair value, ending balance	[1],[3],[6],[20],[21]					9,675
Investment, Identifier [Axis]: Hydraulic Authority III Limited, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	1,057		1,057
Investments, at fair value, ending balance	[1],[3],[6],[20],[21]					1,057
Investment, Identifier [Axis]: Hydraulic Authority III Limited, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	217		217
Investments, at fair value, ending balance	[1],[3],[6],[20],[21]					217
Investment, Identifier [Axis]: Hydraulic Authority III Limited, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	0		0
Investments, at fair value, ending balance	[1],[3],[6],[20],[21]					0
Investment, Identifier [Axis]: Hydraulic Authority III Limited, Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	474		474
Investments, at fair value, ending balance	[1],[3],[6],[20],[21]					474
Investment, Identifier [Axis]: Hyland Software, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			4,876
Investment, Identifier [Axis]: Hyland Software, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(1)
Investment, Identifier [Axis]: ICIMS, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	7,707		7,707
Investments, at fair value, ending balance				7,849	[2],[7],[13]	7,707	[1],[3]
Investment, Identifier [Axis]: ICIMS, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance				24	[2],[7]	(1)	[1],[3],[11]
Investment, Identifier [Axis]: ICIMS, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				(37)	[2],[7],[12]	0	[1],[3]
Investment, Identifier [Axis]: IG Investments Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	7,093		7,093
Investments, at fair value, ending balance				6,468	[2],[7]	7,093	[1],[3]
Investment, Identifier [Axis]: IG Investments Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				0	[2],[7],[12]	0	[1],[3],[11]
Investment, Identifier [Axis]: IG Investments Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			553
Investment, Identifier [Axis]: IMPLUS Footcare, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13]			28,852
Investment, Identifier [Axis]: IMPLUS Footcare, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13]			4,927
Investment, Identifier [Axis]: IMPLUS Footcare, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[8],[13]			710
Investment, Identifier [Axis]: IMPLUS Footwear, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	28,332		28,332
Investments, at fair value, ending balance	[1],[3]					28,332
Investment, Identifier [Axis]: IMPLUS Footwear, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,839		4,839
Investments, at fair value, ending balance	[1],[3]					4,839
Investment, Identifier [Axis]: IMPLUS Footwear, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	698		698
Investments, at fair value, ending balance	[1],[3],[4]					698
Investment, Identifier [Axis]: IQN Holding Corp., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	14,535		14,535
Investments, at fair value, ending balance				14,321	[2],[7],[15]	14,535	[1],[3],[14]
Investment, Identifier [Axis]: IQN Holding Corp., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance				(2)	[2],[7]	(1)	[1],[3],[11]
Investment, Identifier [Axis]: IQN Holding Corp., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(3)		(3)
Investments, at fair value, ending balance				(3)	[2],[7],[12]	(3)	[1],[3],[11]
Investment, Identifier [Axis]: Illumifin Corporation, One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13]			2,599
Investment, Identifier [Axis]: Impartner, Inc., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	249		249
Investments, at fair value, ending balance				215	[2],[7]	249	[1],[3]
Investment, Identifier [Axis]: Imperial Optical Midco Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			80
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	20,664		20,664
Investments, at fair value, ending balance				20,827	[2],[7],[13]	20,664	[1],[3]
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,654		1,654
Investments, at fair value, ending balance				76	[2],[7],[13]	1,654	[1],[3]
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 100
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	75		75
Investments, at fair value, ending balance	[1],[3]					75
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 101
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	74		74
Investments, at fair value, ending balance	[1],[3]					74
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 102
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	74		74
Investments, at fair value, ending balance	[1],[3]					74
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 103
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	71		71
Investments, at fair value, ending balance	[1],[3]					71
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 104
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	68		68
Investments, at fair value, ending balance	[1],[3]					68
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 105
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	68		68
Investments, at fair value, ending balance	[1],[3]					68
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 106
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	65		65
Investments, at fair value, ending balance	[1],[3]					65
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 107
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	64		64
Investments, at fair value, ending balance	[1],[3]					64
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 108
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	63		63
Investments, at fair value, ending balance	[1],[3]					63
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 109
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	62		62
Investments, at fair value, ending balance	[1],[3]					62
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 11
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,454		1,454
Investments, at fair value, ending balance				2,420	[2],[7],[13]	1,454	[1],[3]
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 110
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	60		60
Investments, at fair value, ending balance	[1],[3]					60
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 111
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	59		59
Investments, at fair value, ending balance	[1],[3]					59
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 112
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	56		56
Investments, at fair value, ending balance	[1],[3]					56
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 113
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	55		55
Investments, at fair value, ending balance	[1],[3]					55
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 114
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	54		54
Investments, at fair value, ending balance	[1],[3]					54
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 115
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	52		52
Investments, at fair value, ending balance	[1],[3]					52
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 116
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	47		47
Investments, at fair value, ending balance	[1],[3]					47
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 117
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	42		42
Investments, at fair value, ending balance	[1],[3]					42
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 118
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	41		41
Investments, at fair value, ending balance	[1],[3]					41
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 119
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	40		40
Investments, at fair value, ending balance	[1],[3]					40
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,435		1,435
Investments, at fair value, ending balance				40	[2],[7],[13]	1,435	[1],[3]
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 120
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	39		39
Investments, at fair value, ending balance	[1],[3]					39
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 121
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	36		36
Investments, at fair value, ending balance	[1],[3]					36
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 122
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	34		34
Investments, at fair value, ending balance	[1],[3]					34
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 123
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	35		35
Investments, at fair value, ending balance	[1],[3]					35
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 124
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	35		35
Investments, at fair value, ending balance	[1],[3]					35
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 125
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	34		34
Investments, at fair value, ending balance	[1],[3]					34
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 126
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	33		33
Investments, at fair value, ending balance	[1],[3]					33
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 127
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	31		31
Investments, at fair value, ending balance	[1],[3]					31
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 128
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	29		29
Investments, at fair value, ending balance	[1],[3]					29
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 129
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	29		29
Investments, at fair value, ending balance	[1],[3]					29
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 13
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,390		1,390
Investments, at fair value, ending balance				500	[2],[7],[13]	1,390	[1],[3]
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 130
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	29		29
Investments, at fair value, ending balance	[1],[3]					29
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 131
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	28		28
Investments, at fair value, ending balance	[1],[3]					28
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 132
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	27		27
Investments, at fair value, ending balance	[1],[3]					27
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 133
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	27		27
Investments, at fair value, ending balance	[1],[3]					27
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 134
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	26		26
Investments, at fair value, ending balance	[1],[3]					26
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 135
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	26		26
Investments, at fair value, ending balance	[1],[3]					26
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 136
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	25		25
Investments, at fair value, ending balance	[1],[3]					25
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 137
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	25		25
Investments, at fair value, ending balance	[1],[3]					25
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 138
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	24		24
Investments, at fair value, ending balance	[1],[3]					24
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 139
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	23		23
Investments, at fair value, ending balance	[1],[3]					23
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 14
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,369		1,369
Investments, at fair value, ending balance				1,198	[2],[7],[13]	1,369	[1],[3]
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 140
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	23		23
Investments, at fair value, ending balance	[1],[3]					23
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 141
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	21		21
Investments, at fair value, ending balance	[1],[3]					21
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 142
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	19		19
Investments, at fair value, ending balance	[1],[3]					19
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 143
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	19		19
Investments, at fair value, ending balance	[1],[3]					19
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 144
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	19		19
Investments, at fair value, ending balance	[1],[3]					19
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 145
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	19		19
Investments, at fair value, ending balance	[1],[3]					19
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 146
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	19		19
Investments, at fair value, ending balance	[1],[3]					19
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 147
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	18		18
Investments, at fair value, ending balance	[1],[3]					18
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 148
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	17		17
Investments, at fair value, ending balance	[1],[3]					17
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 149
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	17		17
Investments, at fair value, ending balance	[1],[3]					17
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 15
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	1,238		1,238
Investments, at fair value, ending balance				231	[2],[7]	1,238	[1],[3],[14]
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 150
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	17		17
Investments, at fair value, ending balance	[1],[3]					17
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 151
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	16		16
Investments, at fair value, ending balance	[1],[3]					16
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 152
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	15		15
Investments, at fair value, ending balance	[1],[3]					15
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 153
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	14		14
Investments, at fair value, ending balance	[1],[3]					14
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 154
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	13		13
Investments, at fair value, ending balance	[1],[3]					13
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 155
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	13		13
Investments, at fair value, ending balance	[1],[3]					13
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 156
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	13		13
Investments, at fair value, ending balance	[1],[3]					13
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 157
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	13		13
Investments, at fair value, ending balance	[1],[3]					13
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 158
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	13		13
Investments, at fair value, ending balance	[1],[3]					13
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 159
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	13		13
Investments, at fair value, ending balance	[1],[3]					13
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 16
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,145		1,145
Investments, at fair value, ending balance	[1],[3]					1,145
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 160
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	12		12
Investments, at fair value, ending balance	[1],[3]					12
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 161
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	11		11
Investments, at fair value, ending balance	[1],[3]					11
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 162
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	11		11
Investments, at fair value, ending balance	[1],[3]					11
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 163
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	10		10
Investments, at fair value, ending balance	[1],[3]					10
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 164
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	10		10
Investments, at fair value, ending balance	[1],[3]					10
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 165
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	10		10
Investments, at fair value, ending balance	[1],[3]					10
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 166
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	10		10
Investments, at fair value, ending balance	[1],[3]					10
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 167
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9		9
Investments, at fair value, ending balance	[1],[3]					9
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 168
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9		9
Investments, at fair value, ending balance	[1],[3]					9
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 169
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9		9
Investments, at fair value, ending balance	[1],[3]					9
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 17
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	1,128		1,128
Investments, at fair value, ending balance	[1],[3],[4]					1,128
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 170
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9		9
Investments, at fair value, ending balance	[1],[3]					9
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 171
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8		8
Investments, at fair value, ending balance	[1],[3]					8
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 172
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8		8
Investments, at fair value, ending balance	[1],[3]					8
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 173
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8		8
Investments, at fair value, ending balance	[1],[3]					8
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 174
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8		8
Investments, at fair value, ending balance	[1],[3]					8
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 175
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	7		7
Investments, at fair value, ending balance	[1],[3]					7
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 176
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	6		6
Investments, at fair value, ending balance	[1],[3]					6
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 177
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	6		6
Investments, at fair value, ending balance	[1],[3]					6
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 178
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5		5
Investments, at fair value, ending balance	[1],[3]					5
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 179
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5		5
Investments, at fair value, ending balance	[1],[3]					5
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 18
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	967		967
Investments, at fair value, ending balance	[1],[3]					967
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 180
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3		3
Investments, at fair value, ending balance	[1],[3]					3
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 181
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	386		386
Investments, at fair value, ending balance	[1],[3]					386
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 182
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	170		170
Investments, at fair value, ending balance	[1],[3]					170
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 183
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	58		58
Investments, at fair value, ending balance	[1],[3]					58
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 184
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	38		38
Investments, at fair value, ending balance	[1],[3]					38
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 185
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	26		26
Investments, at fair value, ending balance	[1],[3]					26
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 186
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	17		17
Investments, at fair value, ending balance	[1],[3]					17
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 19
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	879		879
Investments, at fair value, ending balance	[1],[3]					879
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	4,767		4,767
Investments, at fair value, ending balance				3,618	[2],[7],[13]	4,767	[1],[14]
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 20
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	660		660
Investments, at fair value, ending balance	[1],[3]					660
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 21
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	632		632
Investments, at fair value, ending balance	[1],[3]					632
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 22
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	625		625
Investments, at fair value, ending balance	[1],[3]					625
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 23
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	554		554
Investments, at fair value, ending balance	[1],[3]					554
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 24
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	502		502
Investments, at fair value, ending balance	[1],[3]					502
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 25
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	499		499
Investments, at fair value, ending balance	[1],[3]					499
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 26
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	486		486
Investments, at fair value, ending balance	[1],[3]					486
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 27
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	477		477
Investments, at fair value, ending balance	[1],[3]					477
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 28
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	459		459
Investments, at fair value, ending balance	[1],[3]					459
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 29
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	454		454
Investments, at fair value, ending balance	[1],[3]					454
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	4,149		4,149
Investments, at fair value, ending balance				2,754	[2],[7],[13]	4,149	[1],[14]
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 30
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	450		450
Investments, at fair value, ending balance	[1],[3]					450
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 31
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	446		446
Investments, at fair value, ending balance	[1],[3]					446
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 32
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	442		442
Investments, at fair value, ending balance	[1],[3]					442
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 33
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	416		416
Investments, at fair value, ending balance	[1],[3]					416
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 34
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	415		415
Investments, at fair value, ending balance	[1],[3]					415
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 35
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	414		414
Investments, at fair value, ending balance	[1],[3]					414
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 36
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	410		410
Investments, at fair value, ending balance	[1],[3]					410
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 37
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	410		410
Investments, at fair value, ending balance	[1],[3]					410
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 38
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	380		380
Investments, at fair value, ending balance	[1],[3]					380
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 39
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	358		358
Investments, at fair value, ending balance	[1],[3]					358
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,590		3,590
Investments, at fair value, ending balance				3,009	[2],[7],[13]	3,590	[1],[3]
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 40
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	357		357
Investments, at fair value, ending balance	[1],[3]					357
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 41
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	353		353
Investments, at fair value, ending balance	[1],[3]					353
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 42
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	327		327
Investments, at fair value, ending balance	[1],[3]					327
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 43
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	314		314
Investments, at fair value, ending balance	[1],[3]					314
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 44
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance	[1],[3],[11]					0
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 45
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	306		306
Investments, at fair value, ending balance	[1],[3]					306
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 46
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	284		284
Investments, at fair value, ending balance	[1],[3]					284
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 47
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	277		277
Investments, at fair value, ending balance	[1],[3]					277
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 48
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	277		277
Investments, at fair value, ending balance	[1],[3]					277
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 49
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	272		272
Investments, at fair value, ending balance	[1],[3]					272
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	2,798		2,798
Investments, at fair value, ending balance				3,845	[2],[7],[13]	2,798	[1],[3],[4]
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 50
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	269		269
Investments, at fair value, ending balance	[1],[3]					269
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 51
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	257		257
Investments, at fair value, ending balance	[1],[3]					257
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 52
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	257		257
Investments, at fair value, ending balance	[1],[3]					257
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 53
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	239		239
Investments, at fair value, ending balance	[1],[3]					239
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 54
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	238		238
Investments, at fair value, ending balance	[1],[3]					238
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 55
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	219		219
Investments, at fair value, ending balance	[1],[3]					219
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 56
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	218		218
Investments, at fair value, ending balance	[1],[3]					218
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 57
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	215		215
Investments, at fair value, ending balance	[1],[3]					215
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 58
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	209		209
Investments, at fair value, ending balance	[1],[3]					209
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 59
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	195		195
Investments, at fair value, ending balance	[1],[3]					195
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,763		2,763
Investments, at fair value, ending balance				5,332	[2],[7],[13]	2,763	[1],[3]
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 60
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	193		193
Investments, at fair value, ending balance	[1],[3]					193
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 61
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	192		192
Investments, at fair value, ending balance	[1],[3]					192
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 62
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	188		188
Investments, at fair value, ending balance	[1],[3]					188
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 63
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	179		179
Investments, at fair value, ending balance	[1],[3]					179
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 64
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	172		172
Investments, at fair value, ending balance	[1],[3]					172
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 65
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	167		167
Investments, at fair value, ending balance	[1],[3]					167
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 66
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	165		165
Investments, at fair value, ending balance	[1],[3]					165
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 67
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	161		161
Investments, at fair value, ending balance	[1],[3]					161
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 68
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	160		160
Investments, at fair value, ending balance	[1],[3]					160
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 69
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	158		158
Investments, at fair value, ending balance	[1],[3]					158
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,238		2,238
Investments, at fair value, ending balance				35,849	[2],[7],[13]	2,238	[1],[3]
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 70
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	153		153
Investments, at fair value, ending balance	[1],[3]					153
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 71
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	152		152
Investments, at fair value, ending balance	[1],[3]					152
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 72
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	143		143
Investments, at fair value, ending balance	[1],[3]					143
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 73
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	143		143
Investments, at fair value, ending balance	[1],[3]					143
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 74
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	138		138
Investments, at fair value, ending balance	[1],[3]					138
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 75
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	133		133
Investments, at fair value, ending balance	[1],[3]					133
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 76
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	131		131
Investments, at fair value, ending balance	[1],[3]					131
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 77
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	131		131
Investments, at fair value, ending balance	[1],[3]					131
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 78
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	129		129
Investments, at fair value, ending balance	[1],[3]					129
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 79
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	127		127
Investments, at fair value, ending balance	[1],[3]					127
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,058		2,058
Investments, at fair value, ending balance				4,842	[2],[7],[13]	2,058	[1],[3]
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 80
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	124		124
Investments, at fair value, ending balance	[1],[3]					124
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 81
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	114		114
Investments, at fair value, ending balance	[1],[3]					114
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 82
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	114		114
Investments, at fair value, ending balance	[1],[3]					114
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 83
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	114		114
Investments, at fair value, ending balance	[1],[3]					114
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 84
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	112		112
Investments, at fair value, ending balance	[1],[3]					112
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 85
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	109		109
Investments, at fair value, ending balance	[1],[3]					109
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 86
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	106		106
Investments, at fair value, ending balance	[1],[3]					106
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 87
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	105		105
Investments, at fair value, ending balance	[1],[3]					105
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 88
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	105		105
Investments, at fair value, ending balance	[1],[3]					105
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 89
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	105		105
Investments, at fair value, ending balance	[1],[3]					105
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	1,903		1,903
Investments, at fair value, ending balance				128	[2],[7],[13]	1,903	[1],[3],[14]
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 90
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	99		99
Investments, at fair value, ending balance	[1],[3]					99
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 91
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	96		96
Investments, at fair value, ending balance	[1],[3]					96
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 92
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	86		86
Investments, at fair value, ending balance	[1],[3]					86
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 93
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	86		86
Investments, at fair value, ending balance	[1],[3]					86
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 94
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	82		82
Investments, at fair value, ending balance	[1],[3]					82
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 95
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	79		79
Investments, at fair value, ending balance	[1],[3]					79
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 96
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	79		79
Investments, at fair value, ending balance	[1],[3]					79
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 97
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	75		75
Investments, at fair value, ending balance	[1],[3]					75
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 98
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	75		75
Investments, at fair value, ending balance	[1],[3]					75
Investment, Identifier [Axis]: Imperial Optical Midco Inc., One stop 99
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	75		75
Investments, at fair value, ending balance	[1],[3]					75
Investment, Identifier [Axis]: Imperial Optical Midco Inc., Preferred Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			50
Investment, Identifier [Axis]: Imperial Optical Midco Inc., Preferred Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			18
Investment, Identifier [Axis]: Imperial Optical Midco Inc., Preferred stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	169		169
Investments, at fair value, ending balance	[1],[3]					169
Investment, Identifier [Axis]: Imperial Optical Midco Inc., Preferred stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	62		62
Investments, at fair value, ending balance	[1],[3]					62
Investment, Identifier [Axis]: Infinisource, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	27,534		27,534
Investments, at fair value, ending balance				27,517	[2],[8],[15]	27,534	[1],[3],[14]
Investment, Identifier [Axis]: Infinisource, Inc., One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			484
Investment, Identifier [Axis]: Infinisource, Inc., One stop 11
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			285
Investment, Identifier [Axis]: Infinisource, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8,319		8,319
Investments, at fair value, ending balance				8,318	[2],[7]	8,319	[1],[3]
Investment, Identifier [Axis]: Infinisource, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,006		2,006
Investments, at fair value, ending balance				2,006	[2],[7]	2,006	[1],[3]
Investment, Identifier [Axis]: Infinisource, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	300		300
Investments, at fair value, ending balance				301	[2],[7]	300	[1],[3]
Investment, Identifier [Axis]: Infinisource, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	211		211
Investments, at fair value, ending balance				213	[2],[7]	211	[1],[3]
Investment, Identifier [Axis]: Infinisource, Inc., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	104		104
Investments, at fair value, ending balance				104	[2],[7]	104	[1],[3]
Investment, Identifier [Axis]: Infinisource, Inc., One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	45		45
Investments, at fair value, ending balance				32	[2],[7]	45	[1],[3]
Investment, Identifier [Axis]: Infinisource, Inc., One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance				0	[2],[7],[12]	(2)	[1],[3],[11]
Investment, Identifier [Axis]: Infinisource, Inc., One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	85		85
Investments, at fair value, ending balance				85	[2],[7]	85	[1],[3]
Investment, Identifier [Axis]: Inhabit IQ Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	472		472
Investments, at fair value, ending balance				1,023	[2],[7]	472	[1],[3]
Investment, Identifier [Axis]: Inhabit IQ Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	21,751		21,751
Investments, at fair value, ending balance				21,533	[2],[7]	21,751	[1],[3]
Investment, Identifier [Axis]: Inhabit IQ Inc., One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	931		931
Investments, at fair value, ending balance				922	[2],[7]	931	[1],[3]
Investment, Identifier [Axis]: Inhabit IQ Inc., One stop 11
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	491		491
Investments, at fair value, ending balance				486	[2],[7]	491	[1],[3]
Investment, Identifier [Axis]: Inhabit IQ Inc., One stop 12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				130	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Inhabit IQ Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	19,437		19,437
Investments, at fair value, ending balance				19,232	[2],[7],[15]	19,437	[1],[3],[14]
Investment, Identifier [Axis]: Inhabit IQ Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	13,391		13,391
Investments, at fair value, ending balance				13,254	[2],[7]	13,391	[1],[3]
Investment, Identifier [Axis]: Inhabit IQ Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4]	12,367		12,367
Investments, at fair value, ending balance				12,242	[2],[8]	12,367	[1],[4]
Investment, Identifier [Axis]: Inhabit IQ Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	6,518		6,518
Investments, at fair value, ending balance				6,450	[2],[8],[15]	6,518	[1],[4],[14]
Investment, Identifier [Axis]: Inhabit IQ Inc., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,176		3,176
Investments, at fair value, ending balance				3,143	[2],[7]	3,176	[1],[3]
Investment, Identifier [Axis]: Inhabit IQ Inc., One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	1,395		1,395
Investments, at fair value, ending balance				1,381	[2],[7],[15]	1,395	[1],[3],[14]
Investment, Identifier [Axis]: Inhabit IQ Inc., One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	1,181		1,181
Investments, at fair value, ending balance				1,169	[2],[7],[15]	1,181	[1],[3],[14]
Investment, Identifier [Axis]: Inhabit IQ Inc., One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	1,164		1,164
Investments, at fair value, ending balance				1,152	[2],[7],[15]	1,164	[1],[3],[14]
Investment, Identifier [Axis]: Inhance Technologies Holdings LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	102		102
Investments, at fair value, ending balance				40	[2],[7]	102	[1],[3]
Investment, Identifier [Axis]: Inhance Technologies Holdings LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	12,319		12,319
Investments, at fair value, ending balance				11,637	[2],[7],[15]	12,319	[1],[3],[14]
Investment, Identifier [Axis]: Inhance Technologies Holdings LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,813		9,813
Investments, at fair value, ending balance				9,273	[2],[15]	9,813	[1],[3]
Investment, Identifier [Axis]: Inhance Technologies Holdings LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,872		1,872
Investments, at fair value, ending balance				1,768	[2],[7]	1,872	[1],[3]
Investment, Identifier [Axis]: Inhance Technologies Holdings LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	19		19
Investments, at fair value, ending balance				187	[2],[7]	19	[1],[3]
Investment, Identifier [Axis]: Inhance Technologies Holdings LLC, Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,196		2,196
Investments, at fair value, ending balance				1,785	[2],[7]	2,196	[1],[3]
Investment, Identifier [Axis]: Integrated Specialty Coverages, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			3,207
Investment, Identifier [Axis]: Integrated Specialty Coverages, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(1)
Investment, Identifier [Axis]: Integrated Specialty Coverages, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(9)
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,415		2,415
Investments, at fair value, ending balance				2,366	[2],[7]	2,415	[1],[3]
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	467		467
Investments, at fair value, ending balance				457	[2],[7]	467	[1],[3]
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,096		1,096
Investments, at fair value, ending balance				2,111	[2],[7]	1,096	[1],[3]
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(50)
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,020		3,020
Investments, at fair value, ending balance				3,001	[2],[7]	3,020	[1],[3]
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,513		1,513
Investments, at fair value, ending balance				1,494	[2],[7]	1,513	[1],[3]
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	772		772
Investments, at fair value, ending balance				756	[2],[7]	772	[1],[3]
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC, Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	244		244
Investments, at fair value, ending balance				240	[2],[7]	244	[1],[3]
Investment, Identifier [Axis]: Integrity Marketing Acquisition, LLC, Senior secured 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	182		182
Investments, at fair value, ending balance				181	[2],[7]	182	[1],[3]
Investment, Identifier [Axis]: Internet Truckstop Group LLC, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	532		532
Investments, at fair value, ending balance				484	[2],[7]	532	[1],[3]
Investment, Identifier [Axis]: Internet Truckstop Group LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	21,564		21,564
Investments, at fair value, ending balance				21,118	[2],[8],[15]	21,564	[1],[4],[14]
Investment, Identifier [Axis]: Internet Truckstop Group LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,442		9,442
Investments, at fair value, ending balance				9,248	[2],[7]	9,442	[1],[3]
Investment, Identifier [Axis]: Internet Truckstop Group LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				0	[2],[7],[12]	0	[1],[3],[11]
Investment, Identifier [Axis]: Inventus Power, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Inventus Power, Inc., LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	185		185
Investments, at fair value, ending balance				276	[2],[7]	185	[1],[3]
Investment, Identifier [Axis]: Inventus Power, Inc., LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	50		50
Investments, at fair value, ending balance				61	[2],[7]	50	[1],[3]
Investment, Identifier [Axis]: Inventus Power, Inc., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	106		106
Investments, at fair value, ending balance				97	[2],[7]	106	[1],[3]
Investment, Identifier [Axis]: Island Bidco AB, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[33]	5,265		5,265
Investments, at fair value, ending balance				6,275	[2],[7],[10],[13],[22],[34]	5,265	[1],[3],[6],[20],[33]
Investment, Identifier [Axis]: Island Bidco AB, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[33]	2,892		2,892
Investments, at fair value, ending balance				3,051	[2],[7],[10],[13],[34]	2,892	[1],[3],[6],[33]
Investment, Identifier [Axis]: Island Bidco AB, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[33]	0		0
Investments, at fair value, ending balance				0	[2],[7],[10],[34]	0	[1],[3],[6],[33]
Investment, Identifier [Axis]: Island Bidco AB, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[11],[20],[33]	(1)		(1)
Investments, at fair value, ending balance				0	[2],[7],[10],[12],[22],[34]	(1)	[1],[3],[6],[11],[20],[33]
Investment, Identifier [Axis]: J.S. Held Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	6,380		6,380
Investments, at fair value, ending balance				6,292	[2],[7],[15]	6,380	[1],[3],[14]
Investment, Identifier [Axis]: J.S. Held Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,468		1,468
Investments, at fair value, ending balance				1,448	[2],[7]	1,468	[1],[3]
Investment, Identifier [Axis]: J.S. Held Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,416		1,416
Investments, at fair value, ending balance				1,401	[2],[7]	1,416	[1],[3]
Investment, Identifier [Axis]: J.S. Held Holdings, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	71		71
Investments, at fair value, ending balance				143	[2],[7]	71	[1],[3]
Investment, Identifier [Axis]: J.S. Held Holdings, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	46		46
Investments, at fair value, ending balance				92	[2],[7]	46	[1],[3]
Investment, Identifier [Axis]: J.S. Held Holdings, LLC, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			269
Investment, Identifier [Axis]: JHCC Holdings LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	14,855		14,855
Investments, at fair value, ending balance				14,929	[2],[7]	14,855	[1],[3]
Investment, Identifier [Axis]: JHCC Holdings LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	481		481
Investments, at fair value, ending balance				483	[2],[7]	481	[1],[3]
Investment, Identifier [Axis]: JHCC Holdings LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	286		286
Investments, at fair value, ending balance				287	[2],[7]	286	[1],[3]
Investment, Identifier [Axis]: JHCC Holdings LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	54		54
Investments, at fair value, ending balance				(2)	[2],[7],[12]	54	[1],[3]
Investment, Identifier [Axis]: JHCC Holdings LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	269		269
Investments, at fair value, ending balance				3,259	[2],[7]	269	[1],[3]
Investment, Identifier [Axis]: JHCC Holdings LLC, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			1,114
Investment, Identifier [Axis]: Jensen Hughes, Inc., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,106		4,106
Investments, at fair value, ending balance				4,063	[2],[7]	4,106	[1],[3]
Investment, Identifier [Axis]: Jensen Hughes, Inc., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,388		1,388
Investments, at fair value, ending balance				1,374	[2],[7]	1,388	[1],[3]
Investment, Identifier [Axis]: Jensen Hughes, Inc., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	895		895
Investments, at fair value, ending balance				886	[2],[7]	895	[1],[3]
Investment, Identifier [Axis]: Jensen Hughes, Inc., Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	844		844
Investments, at fair value, ending balance				835	[2],[7]	844	[1],[3]
Investment, Identifier [Axis]: Jensen Hughes, Inc., Senior secured 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	429		429
Investments, at fair value, ending balance				425	[2],[7]	429	[1],[3]
Investment, Identifier [Axis]: Jensen Hughes, Inc., Senior secured 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	274		274
Investments, at fair value, ending balance				271	[2],[7]	274	[1],[3]
Investment, Identifier [Axis]: Jensen Hughes, Inc., Senior secured 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	886		886
Investments, at fair value, ending balance				1,450	[2],[7]	886	[1],[3]
Investment, Identifier [Axis]: Jensen Hughes, Inc., Senior secured 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	214		214
Investments, at fair value, ending balance				211	[2],[7]	214	[1],[3]
Investment, Identifier [Axis]: Jensen Hughes, Inc., Senior secured 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	114		114
Investments, at fair value, ending balance				113	[2],[7]	114	[1],[3]
Investment, Identifier [Axis]: Jet Equipment & Tools Ltd., LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	2,077		2,077
Investments, at fair value, ending balance	[1],[3],[5],[6],[20]					2,077
Investment, Identifier [Axis]: Jet Equipment & Tools Ltd., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	16,381		16,381
Investments, at fair value, ending balance	[1],[3],[5],[6],[20]					16,381
Investment, Identifier [Axis]: Jet Equipment & Tools Ltd., One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6]	1,025		1,025
Investments, at fair value, ending balance	[1],[3],[5],[6]					1,025
Investment, Identifier [Axis]: Jet Equipment & Tools Ltd., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[5],[6],[14]	11,824		11,824
Investments, at fair value, ending balance	[1],[4],[5],[6],[14]					11,824
Investment, Identifier [Axis]: Jet Equipment & Tools Ltd., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6]	5,205		5,205
Investments, at fair value, ending balance	[1],[3],[5],[6]					5,205
Investment, Identifier [Axis]: Jet Equipment & Tools Ltd., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	4,822		4,822
Investments, at fair value, ending balance	[1],[3],[5],[6],[20]					4,822
Investment, Identifier [Axis]: Jet Equipment & Tools Ltd., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[14]	4,118		4,118
Investments, at fair value, ending balance	[1],[3],[5],[6],[14]					4,118
Investment, Identifier [Axis]: Jet Equipment & Tools Ltd., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6]	1,513		1,513
Investments, at fair value, ending balance	[1],[3],[5],[6]					1,513
Investment, Identifier [Axis]: Jet Equipment & Tools Ltd., One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6]	302		302
Investments, at fair value, ending balance	[1],[3],[5],[6]					302
Investment, Identifier [Axis]: Jet Equipment & Tools Ltd., One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	38		38
Investments, at fair value, ending balance	[1],[3],[5],[6],[20]					38
Investment, Identifier [Axis]: Jet Equipment & Tools Ltd., One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	2,080		2,080
Investments, at fair value, ending balance	[1],[3],[5],[6],[20]					2,080
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	0		0
Investments, at fair value, ending balance	[1],[3],[4]					0
Investment, Identifier [Axis]: Joerns Healthcare, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[19]	104		104
Investments, at fair value, ending balance				515	[2],[7],[13],[16]	104	[1],[3],[4],[19]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[19]	0		0
Investments, at fair value, ending balance				310	[2],[7],[13]	0	[1],[3],[4],[19]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,161		1,161
Investments, at fair value, ending balance	[1],[3]					1,161
Investment, Identifier [Axis]: Juvare, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4]	7,451		7,451
Investments, at fair value, ending balance				7,150	[2],[8]	7,451	[1],[4]
Investment, Identifier [Axis]: Juvare, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,719		1,719
Investments, at fair value, ending balance				1,650	[2],[7]	1,719	[1],[3]
Investment, Identifier [Axis]: Juvare, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	526		526
Investments, at fair value, ending balance				541	[2],[7]	526	[1],[3]
Investment, Identifier [Axis]: Juvare, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	45		45
Investments, at fair value, ending balance				48	[2],[7]	45	[1],[3]
Investment, Identifier [Axis]: Kaseya Inc., LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	100		100
Investments, at fair value, ending balance				110	[2],[7]	100	[1],[3]
Investment, Identifier [Axis]: Kaseya Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8,994		8,994
Investments, at fair value, ending balance				9,105	[2],[7],[13]	8,994	[1],[3]
Investment, Identifier [Axis]: Kaseya Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(5)		(5)
Investments, at fair value, ending balance				65	[2],[7],[13]	(5)	[1],[3],[11]
Investment, Identifier [Axis]: Kaseya Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(11)		(11)
Investments, at fair value, ending balance				28	[2],[7],[13]	(11)	[1],[3],[11]
Investment, Identifier [Axis]: Kaseya Inc., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,756		1,756
Investments, at fair value, ending balance				1,912	[2],[7],[18]	1,756	[1],[3]
Investment, Identifier [Axis]: Kentik Technologies, Inc., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,171		1,171
Investments, at fair value, ending balance				1,103	[2],[7]	1,171	[1],[3]
Investment, Identifier [Axis]: Keystone Agency Partners LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,793		2,793
Investments, at fair value, ending balance				2,821	[2],[7]	2,793	[1],[3]
Investment, Identifier [Axis]: Keystone Agency Partners LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	179		179
Investments, at fair value, ending balance				181	[2],[7]	179	[1],[3]
Investment, Identifier [Axis]: Keystone Agency Partners LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	141		141
Investments, at fair value, ending balance				742	[2],[7]	141	[1],[3]
Investment, Identifier [Axis]: Kleinfelder Intermediate, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			3,679
Investment, Identifier [Axis]: Kleinfelder Intermediate, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			50
Investment, Identifier [Axis]: Kleinfelder Intermediate, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(8)
Investment, Identifier [Axis]: Klick Inc., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6]	9,997		9,997
Investments, at fair value, ending balance				9,896	[2],[7],[9],[10]	9,997	[1],[3],[5],[6]
Investment, Identifier [Axis]: Klick Inc., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[11]	0		0
Investments, at fair value, ending balance				0	[2],[7],[9],[10],[12]	0	[1],[3],[5],[6],[11]
Investment, Identifier [Axis]: Kodiak Cakes, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	148		148
Investments, at fair value, ending balance				299	[2],[7]	148	[1],[3]
Investment, Identifier [Axis]: Kodiak Cakes, LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	175		175
Investments, at fair value, ending balance	[1],[3]					175
Investment, Identifier [Axis]: Kodiak Cakes, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	11,379		11,379
Investments, at fair value, ending balance				11,998	[2],[7],[8],[15]	11,379	[1],[3],[4],[14]
Investment, Identifier [Axis]: Kodiak Cakes, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	87		87
Investments, at fair value, ending balance				146	[2],[7]	87	[1],[3]
Investment, Identifier [Axis]: Krueger-Gilbert Health Physics, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	241		241
Investments, at fair value, ending balance				267	[2],[7]	241	[1],[3]
Investment, Identifier [Axis]: Krueger-Gilbert Health Physics, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,311		2,311
Investments, at fair value, ending balance				2,287	[2],[7]	2,311	[1],[3]
Investment, Identifier [Axis]: Krueger-Gilbert Health Physics, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,858		1,858
Investments, at fair value, ending balance				1,840	[2],[7]	1,858	[1],[3]
Investment, Identifier [Axis]: Krueger-Gilbert Health Physics, LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,091		1,091
Investments, at fair value, ending balance				1,080	[2],[7]	1,091	[1],[3]
Investment, Identifier [Axis]: Krueger-Gilbert Health Physics, LLC, Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	60		60
Investments, at fair value, ending balance				60	[2],[7]	60	[1],[3]
Investment, Identifier [Axis]: Krueger-Gilbert Health Physics, LLC, Senior secured 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				1,086	[2],[7]	0	[1],[3],[11]
Investment, Identifier [Axis]: LMP TR Holdings, LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[26]	2,956		2,956
Investments, at fair value, ending balance				2,437	[2],[18]	2,956	[1],[26]
Investment, Identifier [Axis]: LeadsOnline, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			4,102
Investment, Identifier [Axis]: LeadsOnline, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			724
Investment, Identifier [Axis]: LeadsOnline, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(1)
Investment, Identifier [Axis]: Learn-it Systems, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,297		2,297
Investments, at fair value, ending balance				2,333	[2],[7],[13]	2,297	[1],[3]
Investment, Identifier [Axis]: Learn-it Systems, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,236		1,236
Investments, at fair value, ending balance				1,256	[2],[7],[13]	1,236	[1],[3]
Investment, Identifier [Axis]: Learn-it Systems, LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	558		558
Investments, at fair value, ending balance				565	[2],[7],[13]	558	[1],[3]
Investment, Identifier [Axis]: Learn-it Systems, LLC, Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	29		29
Investments, at fair value, ending balance				(3)	[2],[7],[12],[13]	29	[1],[3]
Investment, Identifier [Axis]: Lightning Finco Limited, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[21]	10,142		10,142
Investments, at fair value, ending balance				10,246	[2],[7],[10],[23]	10,142	[1],[3],[6],[21]
Investment, Identifier [Axis]: Lightning Finco Limited, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	1,020		1,020
Investments, at fair value, ending balance				1,112	[2],[7],[10],[22],[23]	1,020	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Liminex, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	885		885
Investments, at fair value, ending balance				699	[2],[7]	885	[1],[3]
Investment, Identifier [Axis]: Liminex, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	25,971		25,971
Investments, at fair value, ending balance				25,462	[2],[7]	25,971	[1],[3]
Investment, Identifier [Axis]: Liminex, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	19,800		19,800
Investments, at fair value, ending balance				20,000	[2],[7]	19,800	[1],[3]
Investment, Identifier [Axis]: Liminex, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	816		816
Investments, at fair value, ending balance				800	[2],[7]	816	[1],[3]
Investment, Identifier [Axis]: Liminex, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				0	[2],[7],[12]	0	[1],[3],[11]
Investment, Identifier [Axis]: Liminex, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			15,837
Investment, Identifier [Axis]: Litera Bidco LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5,662		5,662
Investments, at fair value, ending balance				5,660	[2],[7]	5,662	[1],[3]
Investment, Identifier [Axis]: Litera Bidco LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,609		3,609
Investments, at fair value, ending balance				3,636	[2],[7]	3,609	[1],[3]
Investment, Identifier [Axis]: Litera Bidco LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	676		676
Investments, at fair value, ending balance				682	[2],[7]	676	[1],[3]
Investment, Identifier [Axis]: Litera Bidco LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	676		676
Investments, at fair value, ending balance				682	[2],[7]	676	[1],[3]
Investment, Identifier [Axis]: Litera Bidco LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	512		512
Investments, at fair value, ending balance				512	[2],[7]	512	[1],[3]
Investment, Identifier [Axis]: Litera Bidco LLC, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Long Term Care Group, Inc., One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,984		2,984
Investments, at fair value, ending balance	[1],[3]					2,984
Investment, Identifier [Axis]: Louisiana Fish Fry Products, Ltd., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	251		251
Investments, at fair value, ending balance				346	[2],[7]	251	[1],[3]
Investment, Identifier [Axis]: Louisiana Fish Fry Products, Ltd., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	8,994		8,994
Investments, at fair value, ending balance				9,387	[2],[7],[8]	8,994	[1],[3],[4]
Investment, Identifier [Axis]: Louisiana Fish Fry Products, Ltd., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	65		65
Investments, at fair value, ending balance				72	[2],[7]	65	[1],[3]
Investment, Identifier [Axis]: Louisiana Fish Fry Products, Ltd., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	13		13
Investments, at fair value, ending balance				25	[2],[7]	13	[1],[3]
Investment, Identifier [Axis]: MAPF Holdings, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	37,979		37,979
Investments, at fair value, ending balance				37,594	[2],[7],[8],[15]	37,979	[1],[3],[4],[14]
Investment, Identifier [Axis]: MAPF Holdings, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	70		70
Investments, at fair value, ending balance				120	[2],[7]	70	[1],[3]
Investment, Identifier [Axis]: MMan Acquisition Co.
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance		14,073		14,073		18,237
Gross additions				3,527		4,956
Gross reductions				(3,264)		(2,996)
Net change in unrealized appreciation (depreciation)				(619)		(6,124)
Net realized gain (loss)				(927)		0
Investments, at fair value, ending balance				12,790		14,073		18,237
Interest, dividend and fee income				307		102
Investment, Identifier [Axis]: MMan Acquisition Co., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[35],[36]	0		0
Investments, at fair value, ending balance	[1],[3],[35],[36]					0
Investment, Identifier [Axis]: MMan Acquisition Co., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[19]	10,596		10,596
Investments, at fair value, ending balance				9,031	[2],[7],[13],[16]	10,596	[1],[3],[4],[19]
Investment, Identifier [Axis]: MMan Acquisition Co., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,524		1,524
Investments, at fair value, ending balance				1,579	[2],[7],[13]	1,524	[1],[3]
Investment, Identifier [Axis]: MMan Acquisition Co., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	849		849
Investments, at fair value, ending balance				952	[2],[7],[13]	849	[1],[3]
Investment, Identifier [Axis]: MMan Acquisition Co., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	255		255
Investments, at fair value, ending balance				275	[2],[7],[13]	255	[1],[3]
Investment, Identifier [Axis]: MMan Acquisition Co., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	849		849
Investments, at fair value, ending balance				953	[2],[7],[13]	849	[1],[3]
Investment, Identifier [Axis]: MOP GM Holding, LLC, LP units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	481		481
Investments, at fair value, ending balance				357	[2],[7]	481	[1],[3]
Investment, Identifier [Axis]: MOP GM Holding, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	23,498		23,498
Investments, at fair value, ending balance				22,785	[2],[7],[8],[15]	23,498	[1],[3],[4]
Investment, Identifier [Axis]: MOP GM Holding, LLC, One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	145		145
Investments, at fair value, ending balance				140	[2],[7]	145	[1],[3]
Investment, Identifier [Axis]: MOP GM Holding, LLC, One stop 11
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	59		59
Investments, at fair value, ending balance				57	[2],[7]	59	[1],[3]
Investment, Identifier [Axis]: MOP GM Holding, LLC, One stop 12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	82		82
Investments, at fair value, ending balance				178	[2],[7]	82	[1],[3]
Investment, Identifier [Axis]: MOP GM Holding, LLC, One stop 13
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(47)		(47)
Investments, at fair value, ending balance				(93)	[2],[7],[12]	(47)	[1],[3],[11]
Investment, Identifier [Axis]: MOP GM Holding, LLC, One stop 14
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	176		176
Investments, at fair value, ending balance				171	[2],[7]	176	[1],[3]
Investment, Identifier [Axis]: MOP GM Holding, LLC, One stop 15
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	59		59
Investments, at fair value, ending balance				57	[2],[7]	59	[1],[3]
Investment, Identifier [Axis]: MOP GM Holding, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,576		2,576
Investments, at fair value, ending balance				2,498	[2],[7]	2,576	[1],[3]
Investment, Identifier [Axis]: MOP GM Holding, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,547		2,547
Investments, at fair value, ending balance				2,470	[2],[7]	2,547	[1],[3]
Investment, Identifier [Axis]: MOP GM Holding, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,527		2,527
Investments, at fair value, ending balance				2,450	[2],[7]	2,527	[1],[3]
Investment, Identifier [Axis]: MOP GM Holding, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,872		1,872
Investments, at fair value, ending balance				1,815	[2],[7]	1,872	[1],[3]
Investment, Identifier [Axis]: MOP GM Holding, LLC, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,539		1,539
Investments, at fair value, ending balance				1,493	[2],[7]	1,539	[1],[3]
Investment, Identifier [Axis]: MOP GM Holding, LLC, One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,419		1,419
Investments, at fair value, ending balance				1,376	[2],[7]	1,419	[1],[3]
Investment, Identifier [Axis]: MOP GM Holding, LLC, One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	517		517
Investments, at fair value, ending balance				501	[2],[7]	517	[1],[3]
Investment, Identifier [Axis]: MOP GM Holding, LLC, One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	351		351
Investments, at fair value, ending balance				341	[2],[7]	351	[1],[3]
Investment, Identifier [Axis]: MRI Software LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	14,216		14,216
Investments, at fair value, ending balance				13,927	[2],[7],[8]	14,216	[1],[3],[4]
Investment, Identifier [Axis]: MRI Software LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,903		4,903
Investments, at fair value, ending balance				5,243	[2],[7]	4,903	[1],[3]
Investment, Identifier [Axis]: MRI Software LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(3)		(3)
Investments, at fair value, ending balance				(5)	[2],[7],[12]	(3)	[1],[3],[11]
Investment, Identifier [Axis]: MRI Software LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(5)		(5)
Investments, at fair value, ending balance	[1],[3],[11]					(5)
Investment, Identifier [Axis]: MWD Management, LLC & MWD Services, Inc., LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	526		526
Investments, at fair value, ending balance				617	[2],[7]	526	[1],[3]
Investment, Identifier [Axis]: Madison Safety & Flow LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	443		443
Investments, at fair value, ending balance	[1],[3]					443
Investment, Identifier [Axis]: Madison Safety & Flow LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2		2
Investments, at fair value, ending balance	[1],[3]					2
Investment, Identifier [Axis]: Majesco, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			203
Investment, Identifier [Axis]: Majesco, LP Interest 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	364		364
Investments, at fair value, ending balance	[1],[3]					364
Investment, Identifier [Axis]: Majesco, LP Interest 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	43		43
Investments, at fair value, ending balance	[1],[3]					43
Investment, Identifier [Axis]: Majesco, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	18,751		18,751
Investments, at fair value, ending balance				18,560	[2],[8],[15]	18,751	[1],[4],[14]
Investment, Identifier [Axis]: Majesco, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				0	[2],[7],[12]	0	[1],[3],[11]
Investment, Identifier [Axis]: Majesco, Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[18]			398
Investment, Identifier [Axis]: MakerSights, Inc., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	218		218
Investments, at fair value, ending balance				218	[2],[7]	218	[1],[3]
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			17,789
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			14,187
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			424
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			426
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			3,908
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			0
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	18,353		18,353
Investments, at fair value, ending balance	[1],[3]					18,353
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	14,637		14,637
Investments, at fair value, ending balance	[1],[3]					14,637
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	437		437
Investments, at fair value, ending balance	[1],[3]					437
Investment, Identifier [Axis]: Marcone Yellowstone Buyer Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	170		170
Investments, at fair value, ending balance	[1],[3]					170
Investment, Identifier [Axis]: Mario Purchaser, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	7,347		7,347
Investments, at fair value, ending balance				7,274	[2],[7]	7,347	[1],[3]
Investment, Identifier [Axis]: Mario Purchaser, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,497		1,497
Investments, at fair value, ending balance				1,748	[2],[7],[13]	1,497	[1],[3]
Investment, Identifier [Axis]: Mario Purchaser, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(3)		(3)
Investments, at fair value, ending balance				(3)	[2],[7],[12]	(3)	[1],[3],[11]
Investment, Identifier [Axis]: Mario Purchaser, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	94		94
Investments, at fair value, ending balance				154	[2],[7]	94	[1],[3]
Investment, Identifier [Axis]: Massage Envy, LLC, LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,715		1,715
Investments, at fair value, ending balance				1,783	[2],[7]	1,715	[1],[3]
Investment, Identifier [Axis]: Mathnasium, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	9,168		9,168
Investments, at fair value, ending balance				9,168	[2],[15]	9,168	[1],[14]
Investment, Identifier [Axis]: Mathnasium, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	12		12
Investments, at fair value, ending balance				11	[2],[7]	12	[1],[3]
Investment, Identifier [Axis]: Mendocino Farms, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,738		1,738
Investments, at fair value, ending balance				1,535	[2],[7]	1,738	[1],[3]
Investment, Identifier [Axis]: Mendocino Farms, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	922		922
Investments, at fair value, ending balance				923	[2],[7]	922	[1],[3]
Investment, Identifier [Axis]: Mendocino Farms, LLC, One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			514
Investment, Identifier [Axis]: Mendocino Farms, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	724		724
Investments, at fair value, ending balance				726	[2],[7]	724	[1],[3]
Investment, Identifier [Axis]: Mendocino Farms, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	711		711
Investments, at fair value, ending balance				712	[2],[7]	711	[1],[3]
Investment, Identifier [Axis]: Mendocino Farms, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	350		350
Investments, at fair value, ending balance				351	[2],[7]	350	[1],[3]
Investment, Identifier [Axis]: Mendocino Farms, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	349		349
Investments, at fair value, ending balance				350	[2],[7]	349	[1],[3]
Investment, Identifier [Axis]: Mendocino Farms, LLC, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	172		172
Investments, at fair value, ending balance				173	[2],[7]	172	[1],[3]
Investment, Identifier [Axis]: Mendocino Farms, LLC, One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	105		105
Investments, at fair value, ending balance				105	[2],[7]	105	[1],[3]
Investment, Identifier [Axis]: Mendocino Farms, LLC, One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(21)		(21)
Investments, at fair value, ending balance				824	[2],[7]	(21)	[1],[3],[11]
Investment, Identifier [Axis]: Mendocino Farms, LLC, One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			307
Investment, Identifier [Axis]: Messenger, LLC, LLC units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	280		280
Investments, at fair value, ending balance				160	[2],[7]	280	[1],[3]
Investment, Identifier [Axis]: Messenger, LLC, LLC units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Messenger, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	10,176		10,176
Investments, at fair value, ending balance				9,670	[2],[7],[15]	10,176	[1],[3],[14]
Investment, Identifier [Axis]: Messenger, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	100		100
Investments, at fair value, ending balance				95	[2],[7]	100	[1],[3]
Investment, Identifier [Axis]: Messenger, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	50		50
Investments, at fair value, ending balance				47	[2],[7]	50	[1],[3]
Investment, Identifier [Axis]: Messenger, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	34		34
Investments, at fair value, ending balance				19	[2],[7]	34	[1],[3]
Investment, Identifier [Axis]: MetricStream, Inc., Warrant
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	147		147
Investments, at fair value, ending balance				163	[2],[7]	147	[1],[3]
Investment, Identifier [Axis]: Midwest Veterinary Partners, LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,156		1,156
Investments, at fair value, ending balance	[1],[3]					1,156
Investment, Identifier [Axis]: Midwest Veterinary Partners, LLC, Preferred Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[18]			1,222
Investment, Identifier [Axis]: Midwest Veterinary Partners, LLC, Preferred Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[18]			43
Investment, Identifier [Axis]: Midwest Veterinary Partners, LLC, Warrant
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			342
Investment, Identifier [Axis]: Midwest Veterinary Partners, LLC, Warrant 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	459		459
Investments, at fair value, ending balance	[1],[3]					459
Investment, Identifier [Axis]: Midwest Veterinary Partners, LLC, Warrant 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	39		39
Investments, at fair value, ending balance	[1],[3]					39
Investment, Identifier [Axis]: Mills Fleet Farm Group LLC, One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	45,138		45,138
Investments, at fair value, ending balance				45,138	[2],[7],[8],[15]	45,138	[1],[3],[4],[14]
Investment, Identifier [Axis]: Mindbody, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	50,096		50,096
Investments, at fair value, ending balance				49,911	[2],[7]	50,096	[1],[3]
Investment, Identifier [Axis]: Mindbody, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5,610		5,610
Investments, at fair value, ending balance				3,929	[2],[7]	5,610	[1],[3]
Investment, Identifier [Axis]: Mindbody, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Ministry Brands Holdings LLC, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	251		251
Investments, at fair value, ending balance				386	[2],[7]	251	[1],[3]
Investment, Identifier [Axis]: Ministry Brands Holdings LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	21,322		21,322
Investments, at fair value, ending balance				20,890	[2],[7]	21,322	[1],[3]
Investment, Identifier [Axis]: Ministry Brands Holdings LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(5)		(5)
Investments, at fair value, ending balance				75	[2],[7]	(5)	[1],[3],[11]
Investment, Identifier [Axis]: Ministry Brands Holdings LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(18)		(18)
Investments, at fair value, ending balance				72	[2],[7]	(18)	[1],[3],[11]
Investment, Identifier [Axis]: NBG Acquisition Corp. and NBG-P Acquisition Corp., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	7,365		7,365
Investments, at fair value, ending balance				7,291	[2],[15]	7,365	[1],[3]
Investment, Identifier [Axis]: NBG Acquisition Corp. and NBG-P Acquisition Corp., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(66)		(66)
Investments, at fair value, ending balance				0	[2],[7],[12]	(66)	[1],[3],[11]
Investment, Identifier [Axis]: NBG Acquisition Corp. and NBG-P Acquisition Corp., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	68		68
Investments, at fair value, ending balance				150	[2],[7]	68	[1],[3]
Investment, Identifier [Axis]: NBG Acquisition Corp. and NBG-P Acquisition Corp., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(75)		(75)
Investments, at fair value, ending balance				0	[2],[7],[12]	(75)	[1],[3],[11]
Investment, Identifier [Axis]: NDX Parent, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	91		91
Investments, at fair value, ending balance				39	[2],[7]	91	[1],[3]
Investment, Identifier [Axis]: NDX Parent, LLC, Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			45
Investment, Identifier [Axis]: NSG Buyer, Inc, LP units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10]			1,812
Investment, Identifier [Axis]: NSG Buyer, Inc, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[8],[15]			20,821
Investment, Identifier [Axis]: NSG Buyer, Inc, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			0
Investment, Identifier [Axis]: NSG Buyer, Inc, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			0
Investment, Identifier [Axis]: NSG Buyer, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	7,874		7,874
Investments, at fair value, ending balance	[1],[3]					7,874
Investment, Identifier [Axis]: NSG Buyer, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	242		242
Investments, at fair value, ending balance	[1],[3]					242
Investment, Identifier [Axis]: NSG Buyer, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	141		141
Investments, at fair value, ending balance	[1],[3]					141
Investment, Identifier [Axis]: NSG Buyer, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	133		133
Investments, at fair value, ending balance	[1],[3]					133
Investment, Identifier [Axis]: NSG Buyer, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	12		12
Investments, at fair value, ending balance	[1],[3]					12
Investment, Identifier [Axis]: NTI Connect, LLC, Senior secured
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,628		1,628
Investments, at fair value, ending balance				1,612	[2],[7]	1,628	[1],[3]
Investment, Identifier [Axis]: National Express Wash Parent Holdco, LLC, LP units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	61		61
Investments, at fair value, ending balance				70	[2],[7]	61	[1],[3]
Investment, Identifier [Axis]: National Express Wash Parent Holdco, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,119		3,119
Investments, at fair value, ending balance				4,781	[2],[7]	3,119	[1],[3]
Investment, Identifier [Axis]: National Express Wash Parent Holdco, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	68		68
Investments, at fair value, ending balance				97	[2],[7]	68	[1],[3]
Investment, Identifier [Axis]: National Express Wash Parent Holdco, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(22)		(22)
Investments, at fair value, ending balance				(15)	[2],[7],[12]	(22)	[1],[3],[11]
Investment, Identifier [Axis]: Naviga Inc., Senior secured
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			109
Investment, Identifier [Axis]: Neo Bidco GMBH, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[24]	6,216		6,216
Investments, at fair value, ending balance				6,913	[2],[7],[10],[13],[17],[22]	6,216	[1],[3],[6],[20],[24]
Investment, Identifier [Axis]: Neo Bidco GMBH, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[24]	58		58
Investments, at fair value, ending balance				0	[2],[7],[10],[17]	58	[1],[3],[6],[24]
Investment, Identifier [Axis]: Neo Bidco GMBH, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[24]	0		0
Investments, at fair value, ending balance				63	[2],[7],[10],[17],[22]	0	[1],[3],[6],[20],[24]
Investment, Identifier [Axis]: Neptune Holdings, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			4,888
Investment, Identifier [Axis]: Neptune Holdings, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(1)
Investment, Identifier [Axis]: Net Health Acquisition Corp., LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,719		1,719
Investments, at fair value, ending balance				1,636	[2],[7]	1,719	[1],[3]
Investment, Identifier [Axis]: Net Health Acquisition Corp., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	13,103		13,103
Investments, at fair value, ending balance				12,839	[2],[7]	13,103	[1],[3]
Investment, Identifier [Axis]: Net Health Acquisition Corp., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	8,295		8,295
Investments, at fair value, ending balance				8,124	[2],[8],[15]	8,295	[1],[4],[14]
Investment, Identifier [Axis]: Net Health Acquisition Corp., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	6,639		6,639
Investments, at fair value, ending balance				6,504	[2],[8]	6,639	[1],[3]
Investment, Identifier [Axis]: Net Health Acquisition Corp., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	4,195		4,195
Investments, at fair value, ending balance				4,110	[2],[15]	4,195	[1],[14]
Investment, Identifier [Axis]: Net Health Acquisition Corp., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	1,159		1,159
Investments, at fair value, ending balance				1,135	[2],[8],[15]	1,159	[1],[4],[14]
Investment, Identifier [Axis]: Net Health Acquisition Corp., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(3)		(3)
Investments, at fair value, ending balance				80	[2],[7]	(3)	[1],[3],[11]
Investment, Identifier [Axis]: Netwrix Corporation, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	20		20
Investments, at fair value, ending balance				16	[2],[7],[18]	20	[1],[3]
Investment, Identifier [Axis]: Netwrix Corporation, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,499		3,499
Investments, at fair value, ending balance				4,112	[2],[7],[8]	3,499	[1],[3]
Investment, Identifier [Axis]: Netwrix Corporation, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance				40	[2],[7]	(2)	[1],[3],[11]
Investment, Identifier [Axis]: Netwrix Corporation, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	110		110
Investments, at fair value, ending balance				(24)	[2],[7],[12]	110	[1],[3]
Investment, Identifier [Axis]: New Look (Delaware) Corporation and NL1 AcquireCo, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	265		265
Investments, at fair value, ending balance				311	[2],[7],[9],[10],[22]	265	[1],[3],[5],[6],[20]
Investment, Identifier [Axis]: New Look (Delaware) Corporation and NL1 AcquireCo, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	17,381		17,381
Investments, at fair value, ending balance				16,983	[2],[7],[9],[10],[22]	17,381	[1],[3],[5],[6],[20]
Investment, Identifier [Axis]: New Look (Delaware) Corporation and NL1 AcquireCo, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6]	4,239		4,239
Investments, at fair value, ending balance				4,068	[2],[9],[10],[15]	4,239	[1],[3],[5],[6]
Investment, Identifier [Axis]: New Look (Delaware) Corporation and NL1 AcquireCo, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6]	2,760		2,760
Investments, at fair value, ending balance				2,648	[2],[9],[10],[15]	2,760	[1],[3],[5],[6]
Investment, Identifier [Axis]: New Look (Delaware) Corporation and NL1 AcquireCo, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	1,060		1,060
Investments, at fair value, ending balance				1,035	[2],[7],[9],[10],[22]	1,060	[1],[3],[5],[6],[20]
Investment, Identifier [Axis]: New Look (Delaware) Corporation and NL1 AcquireCo, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	519		519
Investments, at fair value, ending balance				539	[2],[7],[9],[10],[22]	519	[1],[3],[5],[6],[20]
Investment, Identifier [Axis]: New Look (Delaware) Corporation and NL1 AcquireCo, Inc., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	100		100
Investments, at fair value, ending balance				177	[2],[7],[9],[10],[22]	100	[1],[3],[5],[6],[20]
Investment, Identifier [Axis]: New Look (Delaware) Corporation and NL1 AcquireCo, Inc., One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6]	59		59
Investments, at fair value, ending balance				77	[2],[7],[9],[10]	59	[1],[3],[5],[6]
Investment, Identifier [Axis]: New Look (Delaware) Corporation and NL1 AcquireCo, Inc., One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6]	16		16
Investments, at fair value, ending balance				17	[2],[7],[9],[10]	16	[1],[3],[5],[6]
Investment, Identifier [Axis]: Newscycle Solutions, Inc., Senior secured
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	109		109
Investments, at fair value, ending balance	[1],[3]					109
Investment, Identifier [Axis]: Nextech Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,891		3,891
Investments, at fair value, ending balance	[1],[3]					3,891
Investment, Identifier [Axis]: Nextech Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,899		1,899
Investments, at fair value, ending balance	[1],[3]					1,899
Investment, Identifier [Axis]: Nextech Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(6)		(6)
Investments, at fair value, ending balance	[1],[3],[11]					(6)
Investment, Identifier [Axis]: North Haven Falcon Buyer, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5,855		5,855
Investments, at fair value, ending balance				5,493	[2],[7],[13]	5,855	[1],[3]
Investment, Identifier [Axis]: North Haven Falcon Buyer, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	981		981
Investments, at fair value, ending balance				922	[2],[7],[13]	981	[1],[3]
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1]	374		374
Investments, at fair value, ending balance				515	[2]	374	[1]
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	8,591		8,591
Investments, at fair value, ending balance	[1],[3],[4]					8,591
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(56)		(56)
Investments, at fair value, ending balance	[1],[3],[11]					(56)
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	35		35
Investments, at fair value, ending balance	[1],[3]					35
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,894		2,894
Investments, at fair value, ending balance	[1],[3]					2,894
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	955		955
Investments, at fair value, ending balance	[1],[3]					955
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, Second lien
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(35)
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[8],[15]			8,569
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(20)
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			64
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[15]			2,887
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, Senior secured 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[15]			952
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, Senior secured 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			956
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, Senior secured 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			140
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, Senior secured 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			70
Investment, Identifier [Axis]: North Haven Stack Buyer, LLC, Senior secured 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(46)
Investment, Identifier [Axis]: Norvax, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	30,161		30,161
Investments, at fair value, ending balance				31,733	[2],[7],[10]	30,161	[1],[3]
Investment, Identifier [Axis]: Norvax, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,131		9,131
Investments, at fair value, ending balance				9,607	[2],[7],[10]	9,131	[1],[3]
Investment, Identifier [Axis]: OVG Business Services, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,764		1,764
Investments, at fair value, ending balance	[1],[3]					1,764
Investment, Identifier [Axis]: OVG Business Services, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8		8
Investments, at fair value, ending balance	[1],[3]					8
Investment, Identifier [Axis]: Oliver Street Dermatology Holdings, LLC, LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Oliver Street Dermatology Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[19]	17,090		17,090
Investments, at fair value, ending balance				18,178	[2],[7],[13],[16]	17,090	[1],[3],[19]
Investment, Identifier [Axis]: Oliver Street Dermatology Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	12,845		12,845
Investments, at fair value, ending balance				15,083	[2],[7],[13]	12,845	[1],[3]
Investment, Identifier [Axis]: Oliver Street Dermatology Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	331		331
Investments, at fair value, ending balance				388	[2],[7],[13]	331	[1],[3]
Investment, Identifier [Axis]: Onapsis, Inc., Virtual Forge GMBH and Onapsis GMBH, Warrant
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	19		19
Investments, at fair value, ending balance				20	[2],[7]	19	[1],[3]
Investment, Identifier [Axis]: Onit, Inc., Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[18]			50
Investment, Identifier [Axis]: Onit, Inc., Warrant
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			7
Investment, Identifier [Axis]: Opening Day Borrower 111 LLC
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance		0		0
Gross additions				25,387
Gross reductions				(1,149)
Net change in unrealized appreciation (depreciation)				200
Net realized gain (loss)				0
Investments, at fair value, ending balance				24,438		0
Interest, dividend and fee income				0
Investment, Identifier [Axis]: Opening Day Borrower 111 LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			7,818
Investment, Identifier [Axis]: Opening Day Borrower 111 LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13],[16]			12,143
Investment, Identifier [Axis]: Opening Day Borrower 111 LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13],[16]			4,640
Investment, Identifier [Axis]: Opening Day Borrower 111 LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12],[16]			(163)
Investment, Identifier [Axis]: Optimizely North America, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			683
Investment, Identifier [Axis]: Optimizely North America, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[15]			20,850
Investment, Identifier [Axis]: Optimizely North America, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22]			18,377
Investment, Identifier [Axis]: Optimizely North America, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[8],[15]			11,577
Investment, Identifier [Axis]: Optimizely North America, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[8]			6,404
Investment, Identifier [Axis]: Optimizely North America, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(11)
Investment, Identifier [Axis]: Optimizely North America, Inc., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(10)
Investment, Identifier [Axis]: P&P Food Safety Holdings, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	208		208
Investments, at fair value, ending balance				220	[2],[7]	208	[1],[3]
Investment, Identifier [Axis]: P&P Food Safety Holdings, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	17,367		17,367
Investments, at fair value, ending balance				17,052	[2],[7],[8]	17,367	[1],[3],[4]
Investment, Identifier [Axis]: P&P Food Safety Holdings, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	36		36
Investments, at fair value, ending balance				16	[2],[7]	36	[1],[3]
Investment, Identifier [Axis]: P&P Food Safety Holdings, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				(16)	[2],[7],[12]	0	[1],[3],[11]
Investment, Identifier [Axis]: PADI Holdco, Inc., LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	305		305
Investments, at fair value, ending balance				755	[2],[7]	305	[1],[3]
Investment, Identifier [Axis]: PADI Holdco, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	20,771		20,771
Investments, at fair value, ending balance				21,582	[2],[8],[13],[15]	20,771	[1],[4],[14]
Investment, Identifier [Axis]: PADI Holdco, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20]	17,156		17,156
Investments, at fair value, ending balance				19,322	[2],[7],[10],[13],[22]	17,156	[1],[3],[6],[20]
Investment, Identifier [Axis]: PADI Holdco, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	791		791
Investments, at fair value, ending balance				832	[2],[7],[13]	791	[1],[3]
Investment, Identifier [Axis]: PADI Holdco, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	163		163
Investments, at fair value, ending balance				172	[2],[7],[13]	163	[1],[3]
Investment, Identifier [Axis]: PADI Holdco, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(4)		(4)
Investments, at fair value, ending balance				54	[2],[7]	(4)	[1],[3],[11]
Investment, Identifier [Axis]: PAS Parent Inc., LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	781		781
Investments, at fair value, ending balance				879	[2],[7]	781	[1],[3]
Investment, Identifier [Axis]: PAS Parent Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	32,694		32,694
Investments, at fair value, ending balance				32,898	[2],[7],[8],[15]	32,694	[1],[3],[4],[14]
Investment, Identifier [Axis]: PAS Parent Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	151		151
Investments, at fair value, ending balance				(7)	[2],[7],[12]	151	[1],[3]
Investment, Identifier [Axis]: PAS Parent Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(8)		(8)
Investments, at fair value, ending balance				(2)	[2],[7],[12]	(8)	[1],[3],[11]
Investment, Identifier [Axis]: PAS Parent Inc., Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			162
Investment, Identifier [Axis]: PCS Intermediate II Holdings, LLC, LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	504		504
Investments, at fair value, ending balance				574	[2],[7]	504	[1],[3]
Investment, Identifier [Axis]: PCS Intermediate II Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	14,201		14,201
Investments, at fair value, ending balance				14,056	[2],[15]	14,201	[1],[3]
Investment, Identifier [Axis]: PCS Intermediate II Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,050		2,050
Investments, at fair value, ending balance				2,029	[2],[15]	2,050	[1],[3]
Investment, Identifier [Axis]: PCS Intermediate II Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3],[11]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8,241		8,241
Investments, at fair value, ending balance				8,323	[2],[7]	8,241	[1],[3]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,096		1,096
Investments, at fair value, ending balance				1,107	[2],[7]	1,096	[1],[3]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	676		676
Investments, at fair value, ending balance				683	[2],[7]	676	[1],[3]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20]	76		76
Investments, at fair value, ending balance				84	[2],[7],[10],[22]	76	[1],[3],[6],[20]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	37		37
Investments, at fair value, ending balance				148	[2],[7]	37	[1],[3]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			3,224
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Second lien 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,424		3,424
Investments, at fair value, ending balance				3,424	[2],[7]	3,424	[1],[3]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Second lien 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	640		640
Investments, at fair value, ending balance				640	[2],[7]	640	[1],[3]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Second lien 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	377		377
Investments, at fair value, ending balance				377	[2],[7]	377	[1],[3]
Investment, Identifier [Axis]: PDI TA Holdings, Inc., Second lien 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			3,333
Investment, Identifier [Axis]: PHM NL SP Bidco B.V., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[37]	30,116		30,116
Investments, at fair value, ending balance				29,476	[2],[7],[10],[22],[25]	30,116	[1],[3],[6],[20],[37]
Investment, Identifier [Axis]: PHM NL SP Bidco B.V., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[37]	13,353		13,353
Investments, at fair value, ending balance				12,114	[2],[7],[10],[25]	13,353	[1],[3],[6],[37]
Investment, Identifier [Axis]: PHM NL SP Bidco B.V., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[37]	6,510		6,510
Investments, at fair value, ending balance				6,455	[2],[7],[10],[22],[25]	6,510	[1],[3],[6],[20],[37]
Investment, Identifier [Axis]: PHM NL SP Bidco B.V., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[37]	3,161		3,161
Investments, at fair value, ending balance				3,116	[2],[7],[10],[22],[25]	3,161	[1],[3],[6],[20],[37]
Investment, Identifier [Axis]: PING Identity Holding Corp., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			9,953
Investment, Identifier [Axis]: PING Identity Holding Corp., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			0
Investment, Identifier [Axis]: POY Holdings, LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	278		278
Investments, at fair value, ending balance				354	[2],[7]	278	[1],[3]
Investment, Identifier [Axis]: POY Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1]	9,543		9,543
Investments, at fair value, ending balance				9,447	[2],[15]	9,543	[1]
Investment, Identifier [Axis]: POY Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	36		36
Investments, at fair value, ending balance				0	[2],[7],[12]	36	[1],[3]
Investment, Identifier [Axis]: POY Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	82		82
Investments, at fair value, ending balance				0	[2],[7],[12]	82	[1],[3]
Investment, Identifier [Axis]: POY Holdings, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			81
Investment, Identifier [Axis]: PPT Management Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[19]	19,270		19,270
Investments, at fair value, ending balance	[1],[3],[19]					19,270
Investment, Identifier [Axis]: PPT Management Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[19]	234		234
Investments, at fair value, ending balance	[1],[3],[19]					234
Investment, Identifier [Axis]: PPT Management Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[19]	214		214
Investments, at fair value, ending balance	[1],[3],[19]					214
Investment, Identifier [Axis]: PPT Management Holdings, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[19]	138		138
Investments, at fair value, ending balance	[1],[3],[19]					138
Investment, Identifier [Axis]: PPT Management Holdings, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[19]	68		68
Investments, at fair value, ending balance	[1],[3],[19]					68
Investment, Identifier [Axis]: PPT Management Holdings, LLC, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance	[1],[3]					0
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	7,583		7,583
Investments, at fair value, ending balance				9,469	[2],[7],[15]	7,583	[1],[3]
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	895		895
Investments, at fair value, ending balance				983	[2],[7],[13]	895	[1],[3]
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(8)		(8)
Investments, at fair value, ending balance				(6)	[2],[7],[12]	(8)	[1],[3],[11]
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(19)		(19)
Investments, at fair value, ending balance				41	[2],[7],[13]	(19)	[1],[3],[11]
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(4)		(4)
Investments, at fair value, ending balance				227	[2],[7],[13]	(4)	[1],[3],[11]
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13]			42
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13]			2,660
Investment, Identifier [Axis]: PPW Aero Buyer, Inc., LP units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			694
Investment, Identifier [Axis]: PPW Aero Buyer, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			24,825
Investment, Identifier [Axis]: PPW Aero Buyer, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			0
Investment, Identifier [Axis]: PT Intermediate Holdings III, LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[26]	822		822
Investments, at fair value, ending balance				898	[2],[7],[18]	822	[1],[3],[26]
Investment, Identifier [Axis]: PT Intermediate Holdings III, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	28,932		28,932
Investments, at fair value, ending balance				29,225	[2],[7]	28,932	[1],[3]
Investment, Identifier [Axis]: PT Intermediate Holdings III, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	20,456		20,456
Investments, at fair value, ending balance				20,664	[2],[7]	20,456	[1],[3]
Investment, Identifier [Axis]: PT Intermediate Holdings III, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,702		9,702
Investments, at fair value, ending balance				9,800	[2],[7]	9,702	[1],[3]
Investment, Identifier [Axis]: PT Intermediate Holdings III, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			2,260
Investment, Identifier [Axis]: PT Intermediate Holdings III, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			0
Investment, Identifier [Axis]: Paisley Bidco Limited, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[23]			1,404
Investment, Identifier [Axis]: Paisley Bidco Limited, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[12],[22],[23]			0
Investment, Identifier [Axis]: Panzura, LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			4
Investment, Identifier [Axis]: Panzura, LLC, One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13]			44
Investment, Identifier [Axis]: Paradigm DKD Group, LLC
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance		0		0		2,627
Gross additions		357
Gross reductions		(3,605)
Net change in unrealized appreciation (depreciation)		(571)
Net realized gain (loss)		1,192
Investments, at fair value, ending balance						0		2,627
Interest, dividend and fee income						2,026
Investment, Identifier [Axis]: Pareto Health Intermediate Holdings, Inc., One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	7,081		7,081
Investments, at fair value, ending balance	[1],[3]					7,081
Investment, Identifier [Axis]: Pareto Health Intermediate Holdings, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			14,460
Investment, Identifier [Axis]: Pareto Health Intermediate Holdings, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			4,820
Investment, Identifier [Axis]: Pareto Health Intermediate Holdings, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			0
Investment, Identifier [Axis]: Patriot Growth Insurance Services, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,287		9,287
Investments, at fair value, ending balance				10,732	[2],[7]	9,287	[1],[3]
Investment, Identifier [Axis]: Patriot Growth Insurance Services, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance				(1)	[2],[7],[12]	(1)	[1],[3],[11]
Investment, Identifier [Axis]: Patriot Growth Insurance Services, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	584		584
Investments, at fair value, ending balance				1,404	[2],[7]	584	[1],[3]
Investment, Identifier [Axis]: Patriot Growth Insurance Services, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(22)		(22)
Investments, at fair value, ending balance	[1],[3],[11]					(22)
Investment, Identifier [Axis]: People Corporation, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	13,502		13,502
Investments, at fair value, ending balance				13,608	[2],[7],[9],[10],[22]	13,502	[1],[3],[5],[6],[20]
Investment, Identifier [Axis]: People Corporation, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	4,406		4,406
Investments, at fair value, ending balance				4,442	[2],[7],[9],[10],[22]	4,406	[1],[3],[5],[6],[20]
Investment, Identifier [Axis]: People Corporation, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	2,819		2,819
Investments, at fair value, ending balance				11,152	[2],[7],[9],[10],[22]	2,819	[1],[3],[5],[6],[20]
Investment, Identifier [Axis]: People Corporation, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6],[20]	147		147
Investments, at fair value, ending balance				(3)	[2],[7],[9],[10],[12],[22]	147	[1],[3],[5],[6],[20]
Investment, Identifier [Axis]: People Corporation, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[9],[10],[22]			129
Investment, Identifier [Axis]: Personify, Inc., LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,565		1,565
Investments, at fair value, ending balance				1,779	[2],[7]	1,565	[1],[3]
Investment, Identifier [Axis]: Personify, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	13,723		13,723
Investments, at fair value, ending balance				13,084	[2],[7],[8],[15]	13,723	[1],[3],[4],[14]
Investment, Identifier [Axis]: Personify, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	8,173		8,173
Investments, at fair value, ending balance				8,083	[2],[15]	8,173	[1],[14]
Investment, Identifier [Axis]: Personify, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Pet Holdings ULC, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[5],[6]	1,732		1,732
Investments, at fair value, ending balance				1,035	[2],[7],[9],[10],[18]	1,732	[1],[3],[5],[6]
Investment, Identifier [Axis]: Pinnacle Treatment Centers, Inc., LLC interest 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	739		739
Investments, at fair value, ending balance				799	[2],[7]	739	[1],[3]
Investment, Identifier [Axis]: Pinnacle Treatment Centers, Inc., LLC interest 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	781		781
Investments, at fair value, ending balance				407	[2],[7]	781	[1],[3]
Investment, Identifier [Axis]: Pinnacle Treatment Centers, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	18,732		18,732
Investments, at fair value, ending balance				18,532	[2],[8],[15]	18,732	[1],[3],[14]
Investment, Identifier [Axis]: Pinnacle Treatment Centers, Inc., One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[15]			1,147
Investment, Identifier [Axis]: Pinnacle Treatment Centers, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4]	7,553		7,553
Investments, at fair value, ending balance				7,476	[2],[8]	7,553	[1],[4]
Investment, Identifier [Axis]: Pinnacle Treatment Centers, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	1,539		1,539
Investments, at fair value, ending balance				1,523	[2],[7],[15]	1,539	[1],[3],[14]
Investment, Identifier [Axis]: Pinnacle Treatment Centers, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	695		695
Investments, at fair value, ending balance				688	[2],[7]	695	[1],[3]
Investment, Identifier [Axis]: Pinnacle Treatment Centers, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	184		184
Investments, at fair value, ending balance				182	[2],[7]	184	[1],[3]
Investment, Identifier [Axis]: Pinnacle Treatment Centers, Inc., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	145		145
Investments, at fair value, ending balance				197	[2],[7]	145	[1],[3]
Investment, Identifier [Axis]: Pinnacle Treatment Centers, Inc., One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	105		105
Investments, at fair value, ending balance				104	[2],[7]	105	[1],[3]
Investment, Identifier [Axis]: Pinnacle Treatment Centers, Inc., One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	37		37
Investments, at fair value, ending balance				37	[2],[7]	37	[1],[3]
Investment, Identifier [Axis]: Pinnacle Treatment Centers, Inc., One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[15]			2,181
Investment, Identifier [Axis]: PlanSource Holdings, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	11,416		11,416
Investments, at fair value, ending balance				11,416	[2],[7]	11,416	[1],[3]
Investment, Identifier [Axis]: PlanSource Holdings, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,932		1,932
Investments, at fair value, ending balance				1,932	[2],[7]	1,932	[1],[3]
Investment, Identifier [Axis]: PlanSource Holdings, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	139		139
Investments, at fair value, ending balance				139	[2],[7]	139	[1],[3]
Investment, Identifier [Axis]: PlanSource Holdings, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3],[11]
Investment, Identifier [Axis]: Plasma Buyer LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5,295		5,295
Investments, at fair value, ending balance				4,921	[2],[7]	5,295	[1],[3]
Investment, Identifier [Axis]: Plasma Buyer LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance				7	[2],[7]	(1)	[1],[3],[11]
Investment, Identifier [Axis]: Plasma Buyer LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(28)		(28)
Investments, at fair value, ending balance				0	[2],[7],[12]	(28)	[1],[3],[11]
Investment, Identifier [Axis]: Pluralsight, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	23,748		23,748
Investments, at fair value, ending balance				23,511	[2],[7]	23,748	[1],[3]
Investment, Identifier [Axis]: Pluralsight, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				62	[2],[7]	0	[1],[3],[11]
Investment, Identifier [Axis]: Polk Acquisition Corp., LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	60		60
Investments, at fair value, ending balance				0	[2],[7]	60	[1],[3]
Investment, Identifier [Axis]: Polk Acquisition Corp., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	17,777		17,777
Investments, at fair value, ending balance				17,731	[2],[7],[8],[13],[15]	17,777	[1],[3],[4],[14]
Investment, Identifier [Axis]: Polk Acquisition Corp., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	695		695
Investments, at fair value, ending balance				57	[2],[7],[13]	695	[1],[3]
Investment, Identifier [Axis]: Polk Acquisition Corp., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	104		104
Investments, at fair value, ending balance				105	[2],[7],[13]	104	[1],[3]
Investment, Identifier [Axis]: Polk Acquisition Corp., Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	105		105
Investments, at fair value, ending balance	[1],[3]					105
Investment, Identifier [Axis]: ProcessMAP Corporation, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,869		3,869
Investments, at fair value, ending balance	[1],[3]					3,869
Investment, Identifier [Axis]: ProcessMAP Corporation, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance	[1],[3],[11]					(1)
Investment, Identifier [Axis]: ProcessUnity Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,221		4,221
Investments, at fair value, ending balance				4,221	[2],[7]	4,221	[1],[3]
Investment, Identifier [Axis]: ProcessUnity Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	23		23
Investments, at fair value, ending balance				0	[2],[7],[12]	23	[1],[3]
Investment, Identifier [Axis]: ProcessUnity Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				844	[2],[7]	0	[1],[3],[11]
Investment, Identifier [Axis]: ProcessUnity Holdings, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			1,996
Investment, Identifier [Axis]: Procure Acquireco, Inc., LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	516		516
Investments, at fair value, ending balance				611	[2],[7]	516	[1],[3]
Investment, Identifier [Axis]: Procure Acquireco, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	17,634		17,634
Investments, at fair value, ending balance				17,456	[2],[7],[15]	17,634	[1],[3],[14]
Investment, Identifier [Axis]: Procure Acquireco, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				0	[2],[7],[12]	0	[1],[3],[11]
Investment, Identifier [Axis]: Procure Acquireco, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				0	[2],[7],[12]	0	[1],[3],[11]
Investment, Identifier [Axis]: Profile Products LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5,466		5,466
Investments, at fair value, ending balance				6,167	[2],[7]	5,466	[1],[3]
Investment, Identifier [Axis]: Profile Products LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6]	1,288		1,288
Investments, at fair value, ending balance				1,250	[2],[7],[10]	1,288	[1],[3],[6]
Investment, Identifier [Axis]: Profile Products LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	18		18
Investments, at fair value, ending balance				41	[2],[7]	18	[1],[3]
Investment, Identifier [Axis]: Profile Products LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				8	[2],[7]	0	[1],[3],[11]
Investment, Identifier [Axis]: Profile Products LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance	[1],[3],[11]					0
Investment, Identifier [Axis]: Project Alpha Intermediate Holding, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			396
Investment, Identifier [Axis]: Project Alpha Intermediate Holding, Inc., Common Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,386		1,386
Investments, at fair value, ending balance	[1],[3]					1,386
Investment, Identifier [Axis]: Project Alpha Intermediate Holding, Inc., Common Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	188		188
Investments, at fair value, ending balance	[1],[3]					188
Investment, Identifier [Axis]: Project Alpha Intermediate Holding, Inc., Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[18]			1,515
Investment, Identifier [Axis]: Project Nike Purchaser, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	18,430		18,430
Investments, at fair value, ending balance				18,985	[2],[7]	18,430	[1],[3]
Investment, Identifier [Axis]: Project Nike Purchaser, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(8)		(8)
Investments, at fair value, ending balance				68	[2],[7]	(8)	[1],[3],[11]
Investment, Identifier [Axis]: Project Nike Purchaser, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(23)		(23)
Investments, at fair value, ending balance	[1],[3],[11]					(23)
Investment, Identifier [Axis]: Project Power Buyer, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	15,464		15,464
Investments, at fair value, ending balance				40,066	[2],[7],[8],[15]	15,464	[1],[3],[4],[14]
Investment, Identifier [Axis]: Project Power Buyer, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7],[12]	0	[1],[3]
Investment, Identifier [Axis]: Provenance Buyer LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	18,279		18,279
Investments, at fair value, ending balance				18,094	[2],[7],[8],[15]	18,279	[1],[3],[14]
Investment, Identifier [Axis]: Provenance Buyer LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,975		9,975
Investments, at fair value, ending balance				9,875	[2],[15]	9,975	[1],[3]
Investment, Identifier [Axis]: Provenance Buyer LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				0	[2],[7],[12]	0	[1],[3],[11]
Investment, Identifier [Axis]: Provenance Buyer LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance	[1],[3],[11]					0
Investment, Identifier [Axis]: Purfoods, LLC, LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,657		4,657
Investments, at fair value, ending balance				4,430	[2],[7]	4,657	[1],[3]
Investment, Identifier [Axis]: Purfoods, LLC, One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	66		66
Investments, at fair value, ending balance				66	[2],[7],[13]	66	[1],[3]
Investment, Identifier [Axis]: Pyramid Healthcare Acquisition Corp., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	267		267
Investments, at fair value, ending balance				315	[2],[7]	267	[1],[3]
Investment, Identifier [Axis]: Pyramid Healthcare Acquisition Corp., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	18,372		18,372
Investments, at fair value, ending balance				18,186	[2],[7],[15]	18,372	[1],[3],[14]
Investment, Identifier [Axis]: Pyramid Healthcare Acquisition Corp., One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				0	[2],[7],[12]	0	[1],[3],[11]
Investment, Identifier [Axis]: Pyramid Healthcare Acquisition Corp., One stop 11
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			1,571
Investment, Identifier [Axis]: Pyramid Healthcare Acquisition Corp., One stop 12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			791
Investment, Identifier [Axis]: Pyramid Healthcare Acquisition Corp., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	873		873
Investments, at fair value, ending balance				864	[2],[7]	873	[1],[3]
Investment, Identifier [Axis]: Pyramid Healthcare Acquisition Corp., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	539		539
Investments, at fair value, ending balance				534	[2],[7]	539	[1],[3]
Investment, Identifier [Axis]: Pyramid Healthcare Acquisition Corp., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	179		179
Investments, at fair value, ending balance				178	[2],[7]	179	[1],[3]
Investment, Identifier [Axis]: Pyramid Healthcare Acquisition Corp., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	158		158
Investments, at fair value, ending balance				156	[2],[7]	158	[1],[3]
Investment, Identifier [Axis]: Pyramid Healthcare Acquisition Corp., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	148		148
Investments, at fair value, ending balance				146	[2],[7]	148	[1],[3]
Investment, Identifier [Axis]: Pyramid Healthcare Acquisition Corp., One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	148		148
Investments, at fair value, ending balance				146	[2],[7]	148	[1],[3]
Investment, Identifier [Axis]: Pyramid Healthcare Acquisition Corp., One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	100		100
Investments, at fair value, ending balance				1,880	[2],[7]	100	[1],[3]
Investment, Identifier [Axis]: Pyramid Healthcare Acquisition Corp., One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	58		58
Investments, at fair value, ending balance				58	[2],[7]	58	[1],[3]
Investment, Identifier [Axis]: QAD, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				20	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: QAD, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,298		9,298
Investments, at fair value, ending balance				9,393	[2],[7]	9,298	[1],[3]
Investment, Identifier [Axis]: QAD, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(9)		(9)
Investments, at fair value, ending balance				0	[2],[7],[12]	(9)	[1],[3],[11]
Investment, Identifier [Axis]: QAD, Inc., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	120		120
Investments, at fair value, ending balance				251	[2],[7],[18]	120	[1],[3]
Investment, Identifier [Axis]: QF Holdings, Inc., One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	626		626
Investments, at fair value, ending balance				626	[2],[7]	626	[1],[3]
Investment, Identifier [Axis]: Qgenda Intermediate Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	14,668		14,668
Investments, at fair value, ending balance				14,517	[2],[7]	14,668	[1],[3]
Investment, Identifier [Axis]: Qgenda Intermediate Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	11,950		11,950
Investments, at fair value, ending balance				11,829	[2],[15]	11,950	[1],[14]
Investment, Identifier [Axis]: Qgenda Intermediate Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,425		1,425
Investments, at fair value, ending balance				1,411	[2],[7]	1,425	[1],[3]
Investment, Identifier [Axis]: Qgenda Intermediate Holdings, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	953		953
Investments, at fair value, ending balance				943	[2],[15]	953	[1],[14]
Investment, Identifier [Axis]: Qgenda Intermediate Holdings, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(4)		(4)
Investments, at fair value, ending balance				196	[2],[7]	(4)	[1],[3],[11]
Investment, Identifier [Axis]: Quant Buyer, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,405		2,405
Investments, at fair value, ending balance				2,411	[2],[7]	2,405	[1],[3]
Investment, Identifier [Axis]: Quant Buyer, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,855		2,855
Investments, at fair value, ending balance				2,862	[2],[7]	2,855	[1],[3]
Investment, Identifier [Axis]: Quant Buyer, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(5)		(5)
Investments, at fair value, ending balance				(3)	[2],[7],[12]	(5)	[1],[3],[11]
Investment, Identifier [Axis]: Quant Buyer, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,006		2,006
Investments, at fair value, ending balance				1,961	[2],[7]	2,006	[1],[3]
Investment, Identifier [Axis]: Quant Buyer, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7],[12]	0	[1],[3]
Investment, Identifier [Axis]: Quick Quack Car Wash Holdings, LLC, LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1]	1,020		1,020
Investments, at fair value, ending balance				728	[2]	1,020	[1]
Investment, Identifier [Axis]: Quick Quack Car Wash Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[15]	12,815		12,815
Investments, at fair value, ending balance	[15]			12,555	[2],[8]	12,815	[1],[4]
Investment, Identifier [Axis]: Quick Quack Car Wash Holdings, LLC, One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	345		345
Investments, at fair value, ending balance				338	[2],[7]	345	[1],[3]
Investment, Identifier [Axis]: Quick Quack Car Wash Holdings, LLC, One stop 11
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	104		104
Investments, at fair value, ending balance				102	[2],[7]	104	[1],[3]
Investment, Identifier [Axis]: Quick Quack Car Wash Holdings, LLC, One stop 12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			3,260
Investment, Identifier [Axis]: Quick Quack Car Wash Holdings, LLC, One stop 13
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			93
Investment, Identifier [Axis]: Quick Quack Car Wash Holdings, LLC, One stop 14
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			1,485
Investment, Identifier [Axis]: Quick Quack Car Wash Holdings, LLC, One stop 15
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(35)
Investment, Identifier [Axis]: Quick Quack Car Wash Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,773		9,773
Investments, at fair value, ending balance				9,578	[2],[7]	9,773	[1],[3]
Investment, Identifier [Axis]: Quick Quack Car Wash Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[15]	2,313		2,313
Investments, at fair value, ending balance	[15]			2,266	[2],[7]	2,313	[1],[3]
Investment, Identifier [Axis]: Quick Quack Car Wash Holdings, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	2,020		2,020
Investments, at fair value, ending balance				1,979	[2],[7],[8]	2,020	[1],[3],[4]
Investment, Identifier [Axis]: Quick Quack Car Wash Holdings, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	1,350		1,350
Investments, at fair value, ending balance				1,323	[2],[7],[8]	1,350	[1],[3],[4]
Investment, Identifier [Axis]: Quick Quack Car Wash Holdings, LLC, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	1,099		1,099
Investments, at fair value, ending balance				1,078	[2],[7],[8]	1,099	[1],[3],[4]
Investment, Identifier [Axis]: Quick Quack Car Wash Holdings, LLC, One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	95		95
Investments, at fair value, ending balance				93	[2],[7]	95	[1],[3]
Investment, Identifier [Axis]: Quick Quack Car Wash Holdings, LLC, One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	120		120
Investments, at fair value, ending balance				(2)	[2],[7],[12]	120	[1],[3]
Investment, Identifier [Axis]: Quick Quack Car Wash Holdings, LLC, One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	95		95
Investments, at fair value, ending balance				49	[2],[7]	95	[1],[3]
Investment, Identifier [Axis]: R.G. Barry Corporation, Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	183		183
Investments, at fair value, ending balance				284	[2],[7]	183	[1],[3]
Investment, Identifier [Axis]: RPL Bidco Limited, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	15,653		15,653
Investments, at fair value, ending balance				17,152	[2],[7],[10],[22],[23]	15,653	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: RPL Bidco Limited, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	1,836		1,836
Investments, at fair value, ending balance				1,848	[2],[7],[10],[22],[23]	1,836	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: RPL Bidco Limited, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[11],[20],[21]	(2)		(2)
Investments, at fair value, ending balance				(2)	[2],[7],[10],[12],[22],[23]	(2)	[1],[3],[6],[11],[20],[21]
Investment, Identifier [Axis]: RPL Bidco Limited, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[23]			7,949
Investment, Identifier [Axis]: RSC Acquisition, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	25,122		25,122
Investments, at fair value, ending balance	[1],[3],[4],[14]					25,122
Investment, Identifier [Axis]: RSC Acquisition, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	6,430		6,430
Investments, at fair value, ending balance	[1],[3]					6,430
Investment, Identifier [Axis]: RSC Acquisition, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,488		1,488
Investments, at fair value, ending balance	[1],[3]					1,488
Investment, Identifier [Axis]: RSC Acquisition, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance	[1],[3],[11]					(2)
Investment, Identifier [Axis]: RSC Acquisition, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance	[1],[3],[11]					(2)
Investment, Identifier [Axis]: RSC Acquisition, Inc., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	975		975
Investments, at fair value, ending balance	[1],[3]					975
Investment, Identifier [Axis]: RW AM Holdco LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	17,551		17,551
Investments, at fair value, ending balance				17,025	[2],[7],[15]	17,551	[1],[3],[14]
Investment, Identifier [Axis]: RW AM Holdco LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance				(5)	[2],[7],[12]	(2)	[1],[3],[11]
Investment, Identifier [Axis]: Radiology Partners, Inc., LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	266		266
Investments, at fair value, ending balance				338	[2],[7]	266	[1],[3]
Investment, Identifier [Axis]: Radiology Partners, Inc., LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	67		67
Investments, at fair value, ending balance				85	[2],[7]	67	[1],[3]
Investment, Identifier [Axis]: Radwell Parent, LLC, LP units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	182		182
Investments, at fair value, ending balance				293	[2],[7],[18]	182	[1],[3]
Investment, Identifier [Axis]: Radwell Parent, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	18,313		18,313
Investments, at fair value, ending balance				18,885	[2],[7]	18,313	[1],[3]
Investment, Identifier [Axis]: Radwell Parent, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(9)		(9)
Investments, at fair value, ending balance				69	[2],[7]	(9)	[1],[3],[11]
Investment, Identifier [Axis]: Radwell Parent, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(22)		(22)
Investments, at fair value, ending balance				0	[2],[7],[12]	(22)	[1],[3],[11]
Investment, Identifier [Axis]: Radwell Parent, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[15]			24,824
Investment, Identifier [Axis]: Rainforest Bidco Limited, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	6,456		6,456
Investments, at fair value, ending balance				7,022	[2],[7],[10],[13],[22],[23]	6,456	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Rainforest Bidco Limited, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	0		0
Investments, at fair value, ending balance				516	[2],[7],[10],[13],[22],[23]	0	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Rainforest Bidco Limited, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[11],[20],[21]	(26)		(26)
Investments, at fair value, ending balance				1,356	[2],[7],[10],[13],[23]	(26)	[1],[3],[6],[11],[20],[21]
Investment, Identifier [Axis]: Rainforest Bidco Limited, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[12],[22],[23]			(64)
Investment, Identifier [Axis]: Reaction Biology Corporation, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	267		267
Investments, at fair value, ending balance				273	[2],[7]	267	[1],[3]
Investment, Identifier [Axis]: Reaction Biology Corporation, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	7,783		7,783
Investments, at fair value, ending balance				7,546	[2],[15]	7,783	[1],[14]
Investment, Identifier [Axis]: Reaction Biology Corporation, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	45		45
Investments, at fair value, ending balance				(10)	[2],[7],[12]	45	[1],[3]
Investment, Identifier [Axis]: Reaction Biology Corporation, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(5)		(5)
Investments, at fair value, ending balance				68	[2],[7]	(5)	[1],[3],[11]
Investment, Identifier [Axis]: Reaction Biology Corporation, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			173
Investment, Identifier [Axis]: Reaction Biology Corporation, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			115
Investment, Identifier [Axis]: Recordxtechnologies, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	699		699
Investments, at fair value, ending balance				714	[2],[13],[15]	699	[1],[14]
Investment, Identifier [Axis]: Recordxtechnologies, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	109		109
Investments, at fair value, ending balance				112	[2],[7],[13]	109	[1],[3]
Investment, Identifier [Axis]: Recordxtechnologies, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	55		55
Investments, at fair value, ending balance				60	[2],[7],[13]	55	[1],[3]
Investment, Identifier [Axis]: Red Dawn SEI Buyer, Inc., LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	19		19
Investments, at fair value, ending balance				22	[2],[7]	19	[1],[3]
Investment, Identifier [Axis]: Red Dawn SEI Buyer, Inc., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20]	18,882		18,882
Investments, at fair value, ending balance				20,634	[2],[7],[10],[22]	18,882	[1],[3],[6],[20]
Investment, Identifier [Axis]: Red Dawn SEI Buyer, Inc., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5,431		5,431
Investments, at fair value, ending balance				5,431	[2],[7]	5,431	[1],[3]
Investment, Identifier [Axis]: Red Dawn SEI Buyer, Inc., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	717		717
Investments, at fair value, ending balance				718	[2],[7]	717	[1],[3]
Investment, Identifier [Axis]: Red Dawn SEI Buyer, Inc., Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	127		127
Investments, at fair value, ending balance				128	[2],[7]	127	[1],[3]
Investment, Identifier [Axis]: Red Dawn SEI Buyer, Inc., Senior secured 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(5)		(5)
Investments, at fair value, ending balance				(1)	[2],[7],[12]	(5)	[1],[3],[11]
Investment, Identifier [Axis]: Red Dawn SEI Buyer, Inc., Senior secured 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(3)		(3)
Investments, at fair value, ending balance				12	[2],[7]	(3)	[1],[3],[11]
Investment, Identifier [Axis]: Red Dawn SEI Buyer, Inc., Senior secured 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	166		166
Investments, at fair value, ending balance				315	[2],[7]	166	[1],[3]
Investment, Identifier [Axis]: RegEd Aquireco, LLC, LP Interest 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	66		66
Investments, at fair value, ending balance				58	[2],[7]	66	[1],[3]
Investment, Identifier [Axis]: RegEd Aquireco, LLC, LP Interest 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: RegEd Aquireco, LLC, Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			21
Investment, Identifier [Axis]: RegEd Aquireco, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	10,401		10,401
Investments, at fair value, ending balance				10,514	[2],[7]	10,401	[1],[3]
Investment, Identifier [Axis]: RegEd Aquireco, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	220		220
Investments, at fair value, ending balance				224	[2],[7]	220	[1],[3]
Investment, Identifier [Axis]: ReliaQuest Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,098		1,098
Investments, at fair value, ending balance				1,098	[2],[7]	1,098	[1],[3]
Investment, Identifier [Axis]: ReliaQuest Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	50		50
Investments, at fair value, ending balance				266	[2],[7]	50	[1],[3]
Investment, Identifier [Axis]: ReliaQuest Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				82	[2],[7]	0	[1],[3],[11]
Investment, Identifier [Axis]: Revalize, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	14,562		14,562
Investments, at fair value, ending balance				13,969	[2],[7]	14,562	[1],[3]
Investment, Identifier [Axis]: Revalize, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8,523		8,523
Investments, at fair value, ending balance				8,176	[2],[7]	8,523	[1],[3]
Investment, Identifier [Axis]: Revalize, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,226		4,226
Investments, at fair value, ending balance				4,054	[2],[7]	4,226	[1],[3]
Investment, Identifier [Axis]: Revalize, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,546		2,546
Investments, at fair value, ending balance				2,442	[2],[7]	2,546	[1],[3]
Investment, Identifier [Axis]: Revalize, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,641		1,641
Investments, at fair value, ending balance				1,574	[2],[7]	1,641	[1],[3]
Investment, Identifier [Axis]: Revalize, Inc., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	385		385
Investments, at fair value, ending balance				370	[2],[7]	385	[1],[3]
Investment, Identifier [Axis]: Revalize, Inc., One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	222		222
Investments, at fair value, ending balance				15	[2],[7]	222	[1],[3]
Investment, Identifier [Axis]: Revalize, Inc., One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(8)		(8)
Investments, at fair value, ending balance				40	[2],[7]	(8)	[1],[3],[11]
Investment, Identifier [Axis]: Revalize, Inc., Preferred stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	17,564		17,564
Investments, at fair value, ending balance				19,463	[2],[7]	17,564	[1],[3]
Investment, Identifier [Axis]: Revalize, Inc., Preferred stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	10,542		10,542
Investments, at fair value, ending balance				11,682	[2],[7]	10,542	[1],[3]
Investment, Identifier [Axis]: Revalize, Inc., Preferred stock 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,096		1,096
Investments, at fair value, ending balance				1,218	[2],[7]	1,096	[1],[3]
Investment, Identifier [Axis]: Revalize, Inc., Preferred stock 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			7,225
Investment, Identifier [Axis]: Riskonnect Parent, LLC, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	825		825
Investments, at fair value, ending balance				1,125	[2],[7]	825	[1],[3]
Investment, Identifier [Axis]: Riskonnect Parent, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	10,008		10,008
Investments, at fair value, ending balance				9,900	[2],[7],[8]	10,008	[1],[3],[4]
Investment, Identifier [Axis]: Riskonnect Parent, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(4)		(4)
Investments, at fair value, ending balance				133	[2],[7]	(4)	[1],[3],[11]
Investment, Identifier [Axis]: Riskonnect Parent, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(8)		(8)
Investments, at fair value, ending balance				(13)	[2],[7],[12]	(8)	[1],[3],[11]
Investment, Identifier [Axis]: Riskonnect Parent, LLC, Preferred stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	17,791		17,791
Investments, at fair value, ending balance				19,444	[2],[7],[18]	17,791	[1],[3]
Investment, Identifier [Axis]: Riskonnect Parent, LLC, Preferred stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	340		340
Investments, at fair value, ending balance				394	[2],[7],[18]	340	[1],[3]
Investment, Identifier [Axis]: Rodeo Buyer Company & Absorb Software Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,541		4,541
Investments, at fair value, ending balance				4,541	[2],[7]	4,541	[1],[3]
Investment, Identifier [Axis]: Rodeo Buyer Company & Absorb Software Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				27	[2],[7]	0	[1],[3],[11]
Investment, Identifier [Axis]: Rubio's Restaurants, Inc
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance		13,174		13,174		17,559
Gross additions		4
Gross reductions		(44)
Net change in unrealized appreciation (depreciation)		(4,345)
Net realized gain (loss)		0
Investments, at fair value, ending balance						13,174		17,559
Interest, dividend and fee income						1,379
Investment, Identifier [Axis]: Rubio's Restaurants, Inc.
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance		13,174		13,174
Gross additions				4,943
Gross reductions				(1,460)
Net change in unrealized appreciation (depreciation)				(4,594)
Net realized gain (loss)				0
Investments, at fair value, ending balance				12,063		13,174
Interest, dividend and fee income				1,922
Investment, Identifier [Axis]: Rubio's Restaurants, Inc., Common Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	250		250
Investments, at fair value, ending balance				0	[2],[7]	250	[1],[3]
Investment, Identifier [Axis]: Rubio's Restaurants, Inc., Common Stock 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Rubio's Restaurants, Inc., Common Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	151		151
Investments, at fair value, ending balance				0	[2],[7]	151	[1],[3]
Investment, Identifier [Axis]: Rubio's Restaurants, Inc., Common Stock 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	11		11
Investments, at fair value, ending balance				0	[2],[7]	11	[1],[3]
Investment, Identifier [Axis]: Rubio's Restaurants, Inc., Common Stock 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	6		6
Investments, at fair value, ending balance				0	[2],[7]	6	[1],[3]
Investment, Identifier [Axis]: Rubio's Restaurants, Inc., Common Stock 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Rubio's Restaurants, Inc., Common Stock 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Rubio's Restaurants, Inc., Common Stock 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Rubio's Restaurants, Inc., Common Stock 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Rubio's Restaurants, Inc., Common Stock 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Rubio's Restaurants, Inc., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,059		2,059
Investments, at fair value, ending balance				143	[2],[7]	2,059	[1],[3]
Investment, Identifier [Axis]: Rubio's Restaurants, Inc., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	10,905		10,905
Investments, at fair value, ending balance				10,880	[2],[7],[13]	10,905	[1],[3]
Investment, Identifier [Axis]: Rubio's Restaurants, Inc., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(208)		(208)
Investments, at fair value, ending balance				391	[2],[7],[13]	(208)	[1],[3],[11]
Investment, Identifier [Axis]: Rubio's Restaurants, Inc., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13]			649
Investment, Identifier [Axis]: Ruby Slipper Cafe LLC, The, LLC interest 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	155		155
Investments, at fair value, ending balance				183	[2],[7]	155	[1],[3]
Investment, Identifier [Axis]: Ruby Slipper Cafe LLC, The, LLC interest 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	28		28
Investments, at fair value, ending balance				33	[2],[7]	28	[1],[3]
Investment, Identifier [Axis]: Ruby Slipper Cafe LLC, The, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	2,025		2,025
Investments, at fair value, ending balance				2,003	[2],[7],[8]	2,025	[1],[3],[4]
Investment, Identifier [Axis]: Ruby Slipper Cafe LLC, The, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	410		410
Investments, at fair value, ending balance				406	[2],[7]	410	[1],[3]
Investment, Identifier [Axis]: Ruby Slipper Cafe LLC, The, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	292		292
Investments, at fair value, ending balance				289	[2],[7]	292	[1],[3]
Investment, Identifier [Axis]: Ruby Slipper Cafe LLC, The, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Ruby Slipper Cafe LLC, The, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				28	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: S.J. Electro Systems, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	16,498		16,498
Investments, at fair value, ending balance				15,995	[2],[7]	16,498	[1],[3]
Investment, Identifier [Axis]: S.J. Electro Systems, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	77		77
Investments, at fair value, ending balance				51	[2],[7]	77	[1],[3]
Investment, Identifier [Axis]: S.J. Electro Systems, LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	104		104
Investments, at fair value, ending balance				75	[2],[7]	104	[1],[3]
Investment, Identifier [Axis]: SC Landco Parent, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6]	248		248
Investments, at fair value, ending balance				254	[2],[7]	248	[1],[3],[6]
Investment, Identifier [Axis]: SHO Holding I Corporation, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,682		3,682
Investments, at fair value, ending balance				3,644	[2],[7]	3,682	[1],[3]
Investment, Identifier [Axis]: SHO Holding I Corporation, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	62		62
Investments, at fair value, ending balance				52	[2],[7]	62	[1],[3]
Investment, Identifier [Axis]: SHO Holding I Corporation, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	62		62
Investments, at fair value, ending balance				78	[2],[7]	62	[1],[3]
Investment, Identifier [Axis]: SHO Holding I Corporation, Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	35		35
Investments, at fair value, ending balance				50	[2],[7]	35	[1],[3]
Investment, Identifier [Axis]: SHO Holding I Corporation, Senior secured 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: SHO Holding I Corporation, Senior secured 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: SSH Corporation, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	213		213
Investments, at fair value, ending balance	[1],[3]					213
Investment, Identifier [Axis]: SSRG Holdings, LLC, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	80		80
Investments, at fair value, ending balance				86	[2],[7]	80	[1],[3]
Investment, Identifier [Axis]: SSRG Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,000		1,000
Investments, at fair value, ending balance				990	[2],[7]	1,000	[1],[3]
Investment, Identifier [Axis]: SSRG Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	20		20
Investments, at fair value, ending balance				20	[2],[7]	20	[1],[3]
Investment, Identifier [Axis]: Sage Dental Management, LLC, LLC units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	222		222
Investments, at fair value, ending balance				448	[2],[7]	222	[1],[3]
Investment, Identifier [Axis]: Sage Dental Management, LLC, LLC units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: SailPoint Technologies Holdings, Inc, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	9,729		9,729
Investments, at fair value, ending balance				9,729	[2],[7]	9,729	[1],[3]
Investment, Identifier [Axis]: SailPoint Technologies Holdings, Inc, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance				(2)	[2],[7],[12]	(2)	[1],[3],[11]
Investment, Identifier [Axis]: Salon Lofts Group, LLC, LP units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	87		87
Investments, at fair value, ending balance				69	[2],[7]	87	[1],[3]
Investment, Identifier [Axis]: Salon Lofts Group, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,540		3,540
Investments, at fair value, ending balance	[1],[3]					3,540
Investment, Identifier [Axis]: Salon Lofts Group, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance	[1],[3],[11]					(2)
Investment, Identifier [Axis]: Salon Lofts Group, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(18)		(18)
Investments, at fair value, ending balance	[1],[3],[11]					(18)
Investment, Identifier [Axis]: Salon Lofts Group, LLC, Second lien
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			848
Investment, Identifier [Axis]: Salon Lofts Group, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			3,505
Investment, Identifier [Axis]: Salon Lofts Group, LLC, Senior secured 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(6)
Investment, Identifier [Axis]: Salon Lofts Group, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			73
Investment, Identifier [Axis]: Salon Lofts Group, LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(10)
Investment, Identifier [Axis]: Salon Lofts Group, LLC, Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			57
Investment, Identifier [Axis]: Salon Lofts Group, LLC, Senior secured 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			229
Investment, Identifier [Axis]: Salon Lofts Group, LLC, Senior secured 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			181
Investment, Identifier [Axis]: Salon Lofts Group, LLC, Senior secured 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			76
Investment, Identifier [Axis]: Salon Lofts Group, LLC, Senior secured 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			236
Investment, Identifier [Axis]: Salon Lofts Group, LLC, Senior secured 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			53
Investment, Identifier [Axis]: Sapphire Bidco Oy, One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[38]	29,813		29,813
Investments, at fair value, ending balance	[1],[3],[6],[20],[38]					29,813
Investment, Identifier [Axis]: Sapphire Bidco Oy, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[39]			32,488
Investment, Identifier [Axis]: Sapphire Bidco Oy, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[39]			0
Investment, Identifier [Axis]: Saturn Borrower Inc., LP units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	109		109
Investments, at fair value, ending balance				114	[2],[7]	109	[1],[3]
Investment, Identifier [Axis]: Saturn Borrower Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	18,978		18,978
Investments, at fair value, ending balance				19,101	[2],[7],[13]	18,978	[1],[3]
Investment, Identifier [Axis]: Saturn Borrower Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	98		98
Investments, at fair value, ending balance				99	[2],[7]	98	[1],[3]
Investment, Identifier [Axis]: Sloan Company, Inc.
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance		6,318		6,318		5,162
Gross additions		1,520		38
Gross reductions		(648)		(6,329)
Net change in unrealized appreciation (depreciation)		284		(347)
Net realized gain (loss)		0		320
Investments, at fair value, ending balance				0		6,318		5,162
Interest, dividend and fee income				344		127
Investment, Identifier [Axis]: Sloan Company, Inc., The, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance	[1],[3]					0
Investment, Identifier [Axis]: Sloan Company, Inc., The, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[19]	4,733		4,733
Investments, at fair value, ending balance	[1],[3],[19]					4,733
Investment, Identifier [Axis]: Sloan Company, Inc., The, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,585		1,585
Investments, at fair value, ending balance	[1],[3]					1,585
Investment, Identifier [Axis]: Sloan Company, Inc., The, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[19]	0		0
Investments, at fair value, ending balance	[1],[3],[19]					0
Investment, Identifier [Axis]: SnapLogic, Inc., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,392		1,392
Investments, at fair value, ending balance				1,349	[2],[7]	1,392	[1],[3]
Investment, Identifier [Axis]: SnapLogic, Inc., Warrant
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	361		361
Investments, at fair value, ending balance				345	[2],[7]	361	[1],[3]
Investment, Identifier [Axis]: Sola Franchise, LLC and Sola Salon Studios, LLC, LLC interest 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,848		1,848
Investments, at fair value, ending balance	[1],[3]					1,848
Investment, Identifier [Axis]: Sola Franchise, LLC and Sola Salon Studios, LLC, LLC interest 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	433		433
Investments, at fair value, ending balance	[1],[3]					433
Investment, Identifier [Axis]: Sola Franchise, LLC and Sola Salon Studios, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	11,850		11,850
Investments, at fair value, ending balance	[1],[3],[14]					11,850
Investment, Identifier [Axis]: Sola Franchise, LLC and Sola Salon Studios, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	1,674		1,674
Investments, at fair value, ending balance	[1],[3],[14]					1,674
Investment, Identifier [Axis]: Sola Franchise, LLC and Sola Salon Studios, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance	[1],[3]					0
Investment, Identifier [Axis]: Sonatype, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	40,459		40,459
Investments, at fair value, ending balance				40,459	[2],[7]	40,459	[1],[3]
Investment, Identifier [Axis]: Sonatype, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	851		851
Investments, at fair value, ending balance				851	[2],[7]	851	[1],[3]
Investment, Identifier [Axis]: Sonatype, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				0	[2],[7],[12]	0	[1],[3],[11]
Investment, Identifier [Axis]: Southern Veterinary Partners, LLC, LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,240		4,240
Investments, at fair value, ending balance				5,558	[2],[7]	4,240	[1],[3]
Investment, Identifier [Axis]: Southern Veterinary Partners, LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,124		1,124
Investments, at fair value, ending balance	[1],[3]					1,124
Investment, Identifier [Axis]: Southern Veterinary Partners, LLC, Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5,682		5,682
Investments, at fair value, ending balance	[1],[3]					5,682
Investment, Identifier [Axis]: Southern Veterinary Partners, LLC, Preferred stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[18]			6,002
Investment, Identifier [Axis]: Southern Veterinary Partners, LLC, Preferred stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[18]			1,237
Investment, Identifier [Axis]: Spark Bidco Limited, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	21,890		21,890
Investments, at fair value, ending balance				22,129	[2],[7],[10],[22],[23]	21,890	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Spark Bidco Limited, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	2,653		2,653
Investments, at fair value, ending balance				2,347	[2],[7],[10],[22],[23]	2,653	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Spark Bidco Limited, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[11],[20],[21]	0		0
Investments, at fair value, ending balance				(6)	[2],[7],[10],[12],[22],[23]	0	[1],[3],[6],[11],[20],[21]
Investment, Identifier [Axis]: Spark Bidco Limited, Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[23]			3,221
Investment, Identifier [Axis]: Spark Bidco Limited, Senior secured 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[23]			2,682
Investment, Identifier [Axis]: Spark Bidco Limited, Senior secured 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[23]			2,535
Investment, Identifier [Axis]: Spartan Buyer Acquisition Co., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	747		747
Investments, at fair value, ending balance				328	[2],[7]	747	[1],[3]
Investment, Identifier [Axis]: Spartan Buyer Acquisition Co., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	30,730		30,730
Investments, at fair value, ending balance				30,754	[2],[7],[8],[13],[15]	30,730	[1],[3],[4],[14]
Investment, Identifier [Axis]: Spartan Buyer Acquisition Co., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,953		1,953
Investments, at fair value, ending balance				1,955	[2],[7],[13]	1,953	[1],[3]
Investment, Identifier [Axis]: Spartan Buyer Acquisition Co., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	43		43
Investments, at fair value, ending balance				(1)	[2],[7],[12],[13]	43	[1],[3]
Investment, Identifier [Axis]: Spartan Buyer Acquisition Co., Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			44
Investment, Identifier [Axis]: Spear Education, LLC, LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	35		35
Investments, at fair value, ending balance	[1],[3]					35
Investment, Identifier [Axis]: Spear Education, LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	37		37
Investments, at fair value, ending balance	[1],[3]					37
Investment, Identifier [Axis]: Specialty Measurement Bidco Limited, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[21]	7,961		7,961
Investments, at fair value, ending balance				7,961	[2],[7],[10],[23]	7,961	[1],[3],[6],[21]
Investment, Identifier [Axis]: Specialty Measurement Bidco Limited, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	6,556		6,556
Investments, at fair value, ending balance				7,073	[2],[7],[10],[22],[23]	6,556	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Specialty Measurement Bidco Limited, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[11],[20],[21]	0		0
Investments, at fair value, ending balance				3,479	[2],[7],[10],[22],[23]	0	[1],[3],[6],[11],[20],[21]
Investment, Identifier [Axis]: Specialty Measurement Bidco Limited, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[23]			2,516
Investment, Identifier [Axis]: Specialty Measurement Bidco Limited, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[23]			1,294
Investment, Identifier [Axis]: Specialty Measurement Bidco Limited, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[12],[22],[23]			0
Investment, Identifier [Axis]: Spotless Brands, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8,202		8,202
Investments, at fair value, ending balance				8,223	[2],[7]	8,202	[1],[3]
Investment, Identifier [Axis]: Spotless Brands, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	418		418
Investments, at fair value, ending balance				894	[2],[7]	418	[1],[3]
Investment, Identifier [Axis]: Spotless Brands, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	20		20
Investments, at fair value, ending balance				0	[2],[7]	20	[1],[3]
Investment, Identifier [Axis]: Spotless Brands, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(7)		(7)
Investments, at fair value, ending balance				663	[2],[7]	(7)	[1],[3],[11]
Investment, Identifier [Axis]: Sunstar Insurance Group, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	758		758
Investments, at fair value, ending balance				767	[2],[7]	758	[1],[3]
Investment, Identifier [Axis]: Sunstar Insurance Group, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	772		772
Investments, at fair value, ending balance				914	[2],[7]	772	[1],[3]
Investment, Identifier [Axis]: Sunstar Insurance Group, LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	384		384
Investments, at fair value, ending balance				389	[2],[7]	384	[1],[3]
Investment, Identifier [Axis]: Sunstar Insurance Group, LLC, Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2		2
Investments, at fair value, ending balance				2	[2],[7]	2	[1],[3]
Investment, Identifier [Axis]: SureWerx Purchaser III, Inc, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10]			20,594
Investment, Identifier [Axis]: SureWerx Purchaser III, Inc, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10]			29
Investment, Identifier [Axis]: SureWerx Purchaser III, Inc, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[12]			0
Investment, Identifier [Axis]: Suveto Buyer, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	327		327
Investments, at fair value, ending balance				378	[2],[7]	327	[1],[3]
Investment, Identifier [Axis]: Suveto Buyer, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[7]	17,528		17,528
Investments, at fair value, ending balance	[7]			19,082	[2]	17,528	[1]
Investment, Identifier [Axis]: Suveto Buyer, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[7]	58		58
Investments, at fair value, ending balance	[7]			19	[2]	58	[1]
Investment, Identifier [Axis]: Switchfly LLC
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance		7,697		7,697		6,168
Gross additions		1,321		209
Gross reductions		0		0
Net change in unrealized appreciation (depreciation)		208		(652)
Net realized gain (loss)		0		0
Investments, at fair value, ending balance				7,254		7,697		6,168
Interest, dividend and fee income				142		603
Investment, Identifier [Axis]: Switchfly LLC, LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,231		2,231
Investments, at fair value, ending balance				2,088	[2],[7]	2,231	[1],[3]
Investment, Identifier [Axis]: Switchfly LLC, LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	487		487
Investments, at fair value, ending balance				452	[2],[7]	487	[1],[3]
Investment, Identifier [Axis]: Switchfly LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,583		4,583
Investments, at fair value, ending balance				4,351	[2],[7],[13]	4,583	[1],[3]
Investment, Identifier [Axis]: Switchfly LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	382		382
Investments, at fair value, ending balance				363	[2],[7],[13]	382	[1],[3]
Investment, Identifier [Axis]: Switchfly LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	30		30
Investments, at fair value, ending balance				28	[2],[7],[13]	30	[1],[3]
Investment, Identifier [Axis]: Switchfly LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(16)		(16)
Investments, at fair value, ending balance				(28)	[2],[7],[12]	(16)	[1],[3],[11]
Investment, Identifier [Axis]: Symplr Software, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	739		739
Investments, at fair value, ending balance				801	[2],[7]	739	[1],[3]
Investment, Identifier [Axis]: Symplr Software, Inc., LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	159		159
Investments, at fair value, ending balance				173	[2],[7]	159	[1],[3]
Investment, Identifier [Axis]: Symplr Software, Inc., Preferred stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	12,515		12,515
Investments, at fair value, ending balance				13,369	[2],[7],[18]	12,515	[1],[3]
Investment, Identifier [Axis]: Symplr Software, Inc., Preferred stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,015		4,015
Investments, at fair value, ending balance				4,605	[2],[7],[18]	4,015	[1],[3]
Investment, Identifier [Axis]: Symplr Software, Inc., Preferred stock 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,661		1,661
Investments, at fair value, ending balance				1,774	[2],[7],[18]	1,661	[1],[3]
Investment, Identifier [Axis]: Symplr Software, Inc., Preferred stock 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	971		971
Investments, at fair value, ending balance				1,037	[2],[7],[18]	971	[1],[3]
Investment, Identifier [Axis]: TI Intermediate Holdings, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,427		3,427
Investments, at fair value, ending balance				3,341	[2],[7]	3,427	[1],[3]
Investment, Identifier [Axis]: TI Intermediate Holdings, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	906		906
Investments, at fair value, ending balance				883	[2],[7]	906	[1],[3]
Investment, Identifier [Axis]: TI Intermediate Holdings, LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	426		426
Investments, at fair value, ending balance				416	[2],[7]	426	[1],[3]
Investment, Identifier [Axis]: TI Intermediate Holdings, LLC, Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	233		233
Investments, at fair value, ending balance				554	[2],[7]	233	[1],[3]
Investment, Identifier [Axis]: TI Intermediate Holdings, LLC, Senior secured 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	157		157
Investments, at fair value, ending balance				153	[2],[7]	157	[1],[3]
Investment, Identifier [Axis]: TI Intermediate Holdings, LLC, Senior secured 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	17		17
Investments, at fair value, ending balance				(2)	[2],[7],[12]	17	[1],[3]
Investment, Identifier [Axis]: TWAS Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[15]	40,460		40,460
Investments, at fair value, ending balance	[15]			39,651	[2],[7]	40,460	[1],[3]
Investment, Identifier [Axis]: TWAS Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	30,566		30,566
Investments, at fair value, ending balance				29,953	[2],[7],[8]	30,566	[1],[3],[4]
Investment, Identifier [Axis]: TWAS Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	7,934		7,934
Investments, at fair value, ending balance				7,775	[2],[7]	7,934	[1],[3]
Investment, Identifier [Axis]: TWAS Holdings, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	609		609
Investments, at fair value, ending balance				597	[2],[7]	609	[1],[3]
Investment, Identifier [Axis]: TWAS Holdings, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	387		387
Investments, at fair value, ending balance				379	[2],[7]	387	[1],[3]
Investment, Identifier [Axis]: TWAS Holdings, LLC, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				(4)	[2],[7],[12]	0	[1],[3],[11]
Investment, Identifier [Axis]: Tahoe Bidco B.V., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	12,058		12,058
Investments, at fair value, ending balance				11,696	[2],[7],[10],[25]	12,058	[1],[3]
Investment, Identifier [Axis]: Tahoe Bidco B.V., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				(2)	[2],[7],[10],[12],[25]	0	[1],[3],[11]
Investment, Identifier [Axis]: Teaching Company, The, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	17,289		17,289
Investments, at fair value, ending balance				13,791	[2],[7]	17,289	[1],[3],[4],[14]
Investment, Identifier [Axis]: Teaching Company, The, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance				80	[2],[7]	(2)	[1],[3],[11]
Investment, Identifier [Axis]: Tebra Technologies, Inc., LCC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,958		2,958
Investments, at fair value, ending balance				3,113	[2],[7]	2,958	[1],[3]
Investment, Identifier [Axis]: Tebra Technologies, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	10,386		10,386
Investments, at fair value, ending balance				10,814	[2],[7],[13]	10,386	[1],[3]
Investment, Identifier [Axis]: Tebra Technologies, Inc., One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	80		80
Investments, at fair value, ending balance				84	[2],[7],[13]	80	[1],[3]
Investment, Identifier [Axis]: Tebra Technologies, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	10,110		10,110
Investments, at fair value, ending balance				10,526	[2],[7],[13]	10,110	[1],[3]
Investment, Identifier [Axis]: Tebra Technologies, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	6,661		6,661
Investments, at fair value, ending balance				6,935	[2],[7],[13]	6,661	[1],[3]
Investment, Identifier [Axis]: Tebra Technologies, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,713		1,713
Investments, at fair value, ending balance				1,783	[2],[7],[13]	1,713	[1],[3]
Investment, Identifier [Axis]: Tebra Technologies, Inc., One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,523		1,523
Investments, at fair value, ending balance				1,585	[2],[7],[13]	1,523	[1],[3]
Investment, Identifier [Axis]: Tebra Technologies, Inc., One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,142		1,142
Investments, at fair value, ending balance				1,189	[2],[7],[13]	1,142	[1],[3]
Investment, Identifier [Axis]: Tebra Technologies, Inc., One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	952		952
Investments, at fair value, ending balance				990	[2],[7],[13]	952	[1],[3]
Investment, Identifier [Axis]: Tebra Technologies, Inc., One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	761		761
Investments, at fair value, ending balance				793	[2],[7],[13]	761	[1],[3]
Investment, Identifier [Axis]: Tebra Technologies, Inc., One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	152		152
Investments, at fair value, ending balance				158	[2],[7],[13]	152	[1],[3]
Investment, Identifier [Axis]: Tebra Technologies, Inc., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	12		12
Investments, at fair value, ending balance				12	[2],[7]	12	[1],[3]
Investment, Identifier [Axis]: Tebra Technologies, Inc., Warrant 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	686		686
Investments, at fair value, ending balance				681	[2],[7]	686	[1],[3]
Investment, Identifier [Axis]: Tebra Technologies, Inc., Warrant 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	162		162
Investments, at fair value, ending balance				179	[2],[7]	162	[1],[3]
Investment, Identifier [Axis]: Telesoft Holdings LLC, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	6		6
Investments, at fair value, ending balance				5	[2],[7]	6	[1],[3]
Investment, Identifier [Axis]: Telesoft Holdings LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	871		871
Investments, at fair value, ending balance				864	[2],[7]	871	[1],[3]
Investment, Identifier [Axis]: Telesoft Holdings LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance				7	[2],[7]	(2)	[1],[3],[11]
Investment, Identifier [Axis]: Telesoft Holdings LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	64		64
Investments, at fair value, ending balance				64	[2],[7]	64	[1],[3]
Investment, Identifier [Axis]: Templafy APS and Templafy, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[40]	3,082		3,082
Investments, at fair value, ending balance				3,171	[2],[7],[10],[41]	3,082	[1],[3],[6],[40]
Investment, Identifier [Axis]: Templafy APS and Templafy, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[40]	0		0
Investments, at fair value, ending balance				0	[2],[7],[10],[41]	0	[1],[3],[6],[40]
Investment, Identifier [Axis]: Templafy APS and Templafy, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[11],[40]	(18)		(18)
Investments, at fair value, ending balance				0	[2],[7],[10],[12],[41]	(18)	[1],[3],[6],[11],[40]
Investment, Identifier [Axis]: Templafy APS and Templafy, LLC, Warrant
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[40]	62		62
Investments, at fair value, ending balance				45	[2],[7],[10],[41]	62	[1],[3],[6],[40]
Investment, Identifier [Axis]: TigerRisk, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	22,662		22,662
Investments, at fair value, ending balance	[1],[3],[4]					22,662
Investment, Identifier [Axis]: TigerRisk, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance	[1],[3],[11]					0
Investment, Identifier [Axis]: Titan Fitness, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	28,958		28,958
Investments, at fair value, ending balance				28,639	[2],[7],[8],[13],[15]	28,958	[1],[3],[4],[14]
Investment, Identifier [Axis]: Titan Fitness, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,803		1,803
Investments, at fair value, ending balance				1,784	[2],[7],[13]	1,803	[1],[3]
Investment, Identifier [Axis]: Titan Fitness, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	458		458
Investments, at fair value, ending balance				458	[2],[7],[13]	458	[1],[3]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	15,245		15,245
Investments, at fair value, ending balance				15,085	[2],[8],[15]	15,245	[1],[4],[14]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	1,188		1,188
Investments, at fair value, ending balance				1,175	[2],[8],[15]	1,188	[1],[4],[14]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 11
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	654		654
Investments, at fair value, ending balance				647	[2],[7],[15]	654	[1],[3],[14]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	453		453
Investments, at fair value, ending balance				448	[2],[7]	453	[1],[3]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 13
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	438		438
Investments, at fair value, ending balance				434	[2],[7]	438	[1],[3]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 14
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	250		250
Investments, at fair value, ending balance				250	[2],[7]	250	[1],[3]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 15
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	63		63
Investments, at fair value, ending balance				62	[2],[7]	63	[1],[3]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 16
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	58		58
Investments, at fair value, ending balance				57	[2],[7]	58	[1],[3]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 17
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				0	[2],[7],[12]	0	[1],[3],[11]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 18
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,339		1,339
Investments, at fair value, ending balance				1,326	[2],[7]	1,339	[1],[3]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 19
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			5,954
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	6,893		6,893
Investments, at fair value, ending balance				6,823	[2],[7]	6,893	[1],[3]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,181		4,181
Investments, at fair value, ending balance				4,139	[2],[7]	4,181	[1],[3]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,767		1,767
Investments, at fair value, ending balance				1,748	[2],[7]	1,767	[1],[3]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	1,715		1,715
Investments, at fair value, ending balance				1,697	[2],[7],[15]	1,715	[1],[3],[14]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	1,671		1,671
Investments, at fair value, ending balance				1,654	[2],[8],[15]	1,671	[1],[4],[14]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	1,614		1,614
Investments, at fair value, ending balance				1,598	[2],[7],[15]	1,614	[1],[3],[14]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4]	1,555		1,555
Investments, at fair value, ending balance				1,539	[2],[7],[8]	1,555	[1],[3],[4]
Investment, Identifier [Axis]: Togetherwork Holdings, LLC, One stop 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	1,450		1,450
Investments, at fair value, ending balance				1,436	[2],[7],[15]	1,450	[1],[3],[14]
Investment, Identifier [Axis]: Transaction Data Systems, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	64,955		64,955
Investments, at fair value, ending balance				65,427	[2],[7],[8],[15]	64,955	[1],[3],[4],[14]
Investment, Identifier [Axis]: Transaction Data Systems, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(6)		(6)
Investments, at fair value, ending balance				180	[2],[7]	(6)	[1],[3],[11]
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,409		2,409
Investments, at fair value, ending balance				2,458	[2],[7]	2,409	[1],[3]
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	31		31
Investments, at fair value, ending balance				0	[2],[7],[12]	31	[1],[3]
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			35
Investment, Identifier [Axis]: Trintech, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	21,809		21,809
Investments, at fair value, ending balance	[1],[3],[4],[14]					21,809
Investment, Identifier [Axis]: Trintech, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	9,050		9,050
Investments, at fair value, ending balance	[1],[3],[14]					9,050
Investment, Identifier [Axis]: Trintech, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	98		98
Investments, at fair value, ending balance	[1],[3]					98
Investment, Identifier [Axis]: Triple Lift, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	5,343		5,343
Investments, at fair value, ending balance				5,077	[2],[7]	5,343	[1],[3]
Investment, Identifier [Axis]: Triple Lift, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,133		1,133
Investments, at fair value, ending balance				1,077	[2],[7]	1,133	[1],[3]
Investment, Identifier [Axis]: Triple Lift, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	27		27
Investments, at fair value, ending balance				25	[2],[7]	27	[1],[3]
Investment, Identifier [Axis]: Tronair Parent, Inc., LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	27		27
Investments, at fair value, ending balance				38	[2],[7]	27	[1],[3]
Investment, Identifier [Axis]: Tronair Parent, Inc., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	618		618
Investments, at fair value, ending balance	[1],[3]					618
Investment, Identifier [Axis]: Tronair Parent, Inc., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	88		88
Investments, at fair value, ending balance	[1],[3]					88
Investment, Identifier [Axis]: Tropical Smoothie Cafe Holdings, LLC, LP Interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[26]	945		945
Investments, at fair value, ending balance				1,074	[2],[7]	945	[1],[3],[26]
Investment, Identifier [Axis]: Tropical Smoothie Cafe Holdings, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	19,950		19,950
Investments, at fair value, ending balance				19,466	[2],[7]	19,950	[1],[3]
Investment, Identifier [Axis]: Tropical Smoothie Cafe Holdings, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	13,695		13,695
Investments, at fair value, ending balance				12,214	[2],[8],[15]	13,695	[1],[4],[14]
Investment, Identifier [Axis]: Tropical Smoothie Cafe Holdings, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[14]	5,830		5,830
Investments, at fair value, ending balance				5,338	[2],[15]	5,830	[1],[14]
Investment, Identifier [Axis]: Tropical Smoothie Cafe Holdings, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3],[11]
Investment, Identifier [Axis]: Uinta Brewing Company
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance		0		0		462
Gross additions		22
Gross reductions		(498)
Net change in unrealized appreciation (depreciation)		1,040
Net realized gain (loss)		(1,026)
Investments, at fair value, ending balance						0		462
Interest, dividend and fee income						6
Investment, Identifier [Axis]: Ultimate Baked Goods Midco LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	6,004		6,004
Investments, at fair value, ending balance				6,604	[2],[7]	6,004	[1],[3]
Investment, Identifier [Axis]: Ultimate Baked Goods Midco LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	41		41
Investments, at fair value, ending balance				0	[2],[7],[12]	41	[1],[3]
Investment, Identifier [Axis]: Unchained Labs, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	999		999
Investments, at fair value, ending balance				979	[2],[7]	999	[1],[3]
Investment, Identifier [Axis]: Unchained Labs, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	844		844
Investments, at fair value, ending balance				827	[2],[7]	844	[1],[3]
Investment, Identifier [Axis]: Unchained Labs, LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: VSG Acquisition Corp. and Sherrill, Inc., LP units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	39		39
Investments, at fair value, ending balance				24	[2],[7]	39	[1],[3]
Investment, Identifier [Axis]: VSG Acquisition Corp. and Sherrill, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	8,225		8,225
Investments, at fair value, ending balance				7,896	[2],[7]	8,225	[1],[3]
Investment, Identifier [Axis]: VSG Acquisition Corp. and Sherrill, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	68		68
Investments, at fair value, ending balance				6	[2],[7]	68	[1],[3]
Investment, Identifier [Axis]: VSG Acquisition Corp. and Sherrill, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4		4
Investments, at fair value, ending balance				101	[2],[7]	4	[1],[3]
Investment, Identifier [Axis]: Vector CS Midco Limited & Cloudsense Ltd., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	6,525		6,525
Investments, at fair value, ending balance				7,986	[2],[7],[10],[13],[22],[23]	6,525	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Vector CS Midco Limited & Cloudsense Ltd., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	106		106
Investments, at fair value, ending balance				130	[2],[7],[10],[13],[22],[23]	106	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Vendavo, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	18,826		18,826
Investments, at fair value, ending balance				18,442	[2],[7],[8],[15]	18,826	[1],[3],[4],[14]
Investment, Identifier [Axis]: Vendavo, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	34		34
Investments, at fair value, ending balance				78	[2],[7]	34	[1],[3]
Investment, Identifier [Axis]: Veranex, Inc., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,146		3,146
Investments, at fair value, ending balance				2,674	[2],[7]	3,146	[1],[3]
Investment, Identifier [Axis]: Veranex, Inc., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance				43	[2],[7]	(1)	[1],[3],[11]
Investment, Identifier [Axis]: Veranex, Inc., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(3)		(3)
Investments, at fair value, ending balance				21	[2],[7]	(3)	[1],[3],[11]
Investment, Identifier [Axis]: Vermont Aus Pty Ltd, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[30]	8,342		8,342
Investments, at fair value, ending balance				8,258	[2],[7],[10],[31]	8,342	[1],[3],[6],[30]
Investment, Identifier [Axis]: Vermont Aus Pty Ltd, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[30]	7,286		7,286
Investments, at fair value, ending balance				7,244	[2],[7],[10],[22],[31]	7,286	[1],[3],[6],[20],[30]
Investment, Identifier [Axis]: Vessco Midco Holdings, LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	532		532
Investments, at fair value, ending balance				2,101	[2],[7]	532	[1],[3]
Investment, Identifier [Axis]: Vessco Midco Holdings, LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	204		204
Investments, at fair value, ending balance				0	[2],[7],[12]	204	[1],[3]
Investment, Identifier [Axis]: Vessco Midco Holdings, LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2		2
Investments, at fair value, ending balance				206	[2],[7]	2	[1],[3]
Investment, Identifier [Axis]: Vessco Midco Holdings, LLC, Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			0
Investment, Identifier [Axis]: W3 Co., LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,004		1,004
Investments, at fair value, ending balance				2,002	[2],[7]	1,004	[1],[3]
Investment, Identifier [Axis]: W3 Co., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	188		188
Investments, at fair value, ending balance				254	[2],[7]	188	[1],[3]
Investment, Identifier [Axis]: WBZ Investment LLC, LLC interest 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	192		192
Investments, at fair value, ending balance				137	[2],[7]	192	[1],[3]
Investment, Identifier [Axis]: WBZ Investment LLC, LLC interest 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	131		131
Investments, at fair value, ending balance				93	[2],[7]	131	[1],[3]
Investment, Identifier [Axis]: WBZ Investment LLC, LLC interest 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	108		108
Investments, at fair value, ending balance				77	[2],[7]	108	[1],[3]
Investment, Identifier [Axis]: WBZ Investment LLC, LLC interest 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	95		95
Investments, at fair value, ending balance				67	[2],[7]	95	[1],[3]
Investment, Identifier [Axis]: WBZ Investment LLC, LLC interest 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	40		40
Investments, at fair value, ending balance				28	[2],[7]	40	[1],[3]
Investment, Identifier [Axis]: WBZ Investment LLC, LLC interest 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4		4
Investments, at fair value, ending balance				2	[2],[7]	4	[1],[3]
Investment, Identifier [Axis]: WBZ Investment LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	8,649		8,649
Investments, at fair value, ending balance				8,425	[2],[7],[13],[15]	8,649	[1],[3],[14]
Investment, Identifier [Axis]: WBZ Investment LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,239		1,239
Investments, at fair value, ending balance				1,240	[2],[7],[13]	1,239	[1],[3]
Investment, Identifier [Axis]: WBZ Investment LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	861		861
Investments, at fair value, ending balance				861	[2],[7],[13]	861	[1],[3]
Investment, Identifier [Axis]: WBZ Investment LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	444		444
Investments, at fair value, ending balance				449	[2],[7],[13]	444	[1],[3]
Investment, Identifier [Axis]: WBZ Investment LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				0	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: WPEngine, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			3,469
Investment, Identifier [Axis]: WPEngine, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(1)
Investment, Identifier [Axis]: WRE Holding Corp., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	2,229		2,229
Investments, at fair value, ending balance				2,204	[2],[8],[15]	2,229	[1],[4],[14]
Investment, Identifier [Axis]: WRE Holding Corp., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	920		920
Investments, at fair value, ending balance				911	[2],[7]	920	[1],[3]
Investment, Identifier [Axis]: WRE Holding Corp., Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	675		675
Investments, at fair value, ending balance				668	[2],[7]	675	[1],[3]
Investment, Identifier [Axis]: WRE Holding Corp., Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	399		399
Investments, at fair value, ending balance				395	[2],[7]	399	[1],[3]
Investment, Identifier [Axis]: WRE Holding Corp., Senior secured 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	128		128
Investments, at fair value, ending balance				127	[2],[7]	128	[1],[3]
Investment, Identifier [Axis]: WRE Holding Corp., Senior secured 6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	23		23
Investments, at fair value, ending balance				23	[2],[7]	23	[1],[3]
Investment, Identifier [Axis]: WRE Holding Corp., Senior secured 7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	14		14
Investments, at fair value, ending balance				353	[2],[7]	14	[1],[3]
Investment, Identifier [Axis]: WRE Holding Corp., Senior secured 8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	16		16
Investments, at fair value, ending balance				0	[2],[7]	16	[1],[3]
Investment, Identifier [Axis]: WRE Holding Corp., Senior secured 9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			150
Investment, Identifier [Axis]: WSC Holdings Midco LLC, Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,232		1,232
Investments, at fair value, ending balance	[1],[3]					1,232
Investment, Identifier [Axis]: WSC Holdings Midco LLC, Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,779		1,779
Investments, at fair value, ending balance	[1],[3]					1,779
Investment, Identifier [Axis]: WSC Holdings Midco LLC, Senior secured 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,932		2,932
Investments, at fair value, ending balance	[1],[3]					2,932
Investment, Identifier [Axis]: WSC Holdings Midco LLC, Senior secured 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance	[1],[3],[11]					(1)
Investment, Identifier [Axis]: WSC Holdings Midco LLC, Senior secured 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(1)		(1)
Investments, at fair value, ending balance	[1],[3],[11]					(1)
Investment, Identifier [Axis]: WU Holdco, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[14]	3,630		3,630
Investments, at fair value, ending balance				3,592	[2],[7],[15]	3,630	[1],[3],[14]
Investment, Identifier [Axis]: WU Holdco, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,279		1,279
Investments, at fair value, ending balance				1,266	[2],[7]	1,279	[1],[3]
Investment, Identifier [Axis]: WU Holdco, Inc., One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	332		332
Investments, at fair value, ending balance				329	[2],[7]	332	[1],[3]
Investment, Identifier [Axis]: WU Holdco, Inc., One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	24		24
Investments, at fair value, ending balance				30	[2],[7]	24	[1],[3]
Investment, Identifier [Axis]: Watermill Express, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,222		2,222
Investments, at fair value, ending balance				2,221	[2],[7]	2,222	[1],[3]
Investment, Identifier [Axis]: Watermill Express, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance				8	[2],[7]	0	[1],[3]
Investment, Identifier [Axis]: Watermill Express, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[11]	(2)		(2)
Investments, at fair value, ending balance				214	[2],[7]	(2)	[1],[3],[11]
Investment, Identifier [Axis]: WebPT, Inc., One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	620		620
Investments, at fair value, ending balance				620	[2],[7]	620	[1],[3]
Investment, Identifier [Axis]: Wetzel's Pretzels, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	884		884
Investments, at fair value, ending balance	[1],[3]					884
Investment, Identifier [Axis]: Wetzel's Pretzels, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	14,768		14,768
Investments, at fair value, ending balance	[1],[3],[4],[14]					14,768
Investment, Identifier [Axis]: Wetzel's Pretzels, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance	[1],[3]					0
Investment, Identifier [Axis]: Whitcraft LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	2,870		2,870
Investments, at fair value, ending balance	[1],[3]					2,870
Investment, Identifier [Axis]: Whitcraft LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	60,729		60,729
Investments, at fair value, ending balance	[1],[3],[4],[14]					60,729
Investment, Identifier [Axis]: Whitcraft LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	33		33
Investments, at fair value, ending balance	[1],[3]					33
Investment, Identifier [Axis]: Whitebridge Pet Brands, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[4],[14]	23,003		23,003
Investments, at fair value, ending balance				20,777	[2],[7],[8],[15]	23,003	[1],[3],[4],[14]
Investment, Identifier [Axis]: Whitebridge Pet Brands, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	130		130
Investments, at fair value, ending balance				0	[2],[7],[12]	130	[1],[3]
Investment, Identifier [Axis]: Winebow Holdings, Inc., One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	7,799		7,799
Investments, at fair value, ending balance				7,566	[2],[7]	7,799	[1],[3]
Investment, Identifier [Axis]: Wineshipping.com LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	6,590		6,590
Investments, at fair value, ending balance				6,456	[2],[7]	6,590	[1],[3]
Investment, Identifier [Axis]: Wineshipping.com LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	180		180
Investments, at fair value, ending balance				177	[2],[7]	180	[1],[3]
Investment, Identifier [Axis]: Wineshipping.com LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	14		14
Investments, at fair value, ending balance				60	[2],[7]	14	[1],[3]
Investment, Identifier [Axis]: Wizard Bidco Limited, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[20],[21]	6,067		6,067
Investments, at fair value, ending balance				6,366	[2],[7],[10],[22],[23]	6,067	[1],[3],[6],[20],[21]
Investment, Identifier [Axis]: Wizard Bidco Limited, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3],[6],[11],[20],[21]	0		0
Investments, at fair value, ending balance				88	[2],[7],[10],[22],[23]	0	[1],[3],[6],[11],[20],[21]
Investment, Identifier [Axis]: Wizard Bidco Limited, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[23]			16,283
Investment, Identifier [Axis]: Wizard Bidco Limited, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[22],[23]			5,438
Investment, Identifier [Axis]: Wizard Bidco Limited, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[10],[12],[22],[23]			0
Investment, Identifier [Axis]: Wood Fired Holding Corp., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,675		1,675
Investments, at fair value, ending balance	[1],[3]					1,675
Investment, Identifier [Axis]: Wood Fired Holding Corp., LLC units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	593		593
Investments, at fair value, ending balance	[1],[3]					593
Investment, Identifier [Axis]: Wood Fired Holding Corp., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[4],[14]	9,679		9,679
Investments, at fair value, ending balance	[1],[4],[14]					9,679
Investment, Identifier [Axis]: Wood Fired Holding Corp., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance	[1],[3]					0
Investment, Identifier [Axis]: Workforce Software, LLC, Common Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	577		577
Investments, at fair value, ending balance				668	[2],[7]	577	[1],[3]
Investment, Identifier [Axis]: Workforce Software, LLC, Common Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	38		38
Investments, at fair value, ending balance				41	[2],[7]	38	[1],[3]
Investment, Identifier [Axis]: Workforce Software, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	28,178		28,178
Investments, at fair value, ending balance				28,754	[2],[7],[13]	28,178	[1],[3]
Investment, Identifier [Axis]: Workforce Software, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,986		4,986
Investments, at fair value, ending balance				5,088	[2],[7],[13]	4,986	[1],[3]
Investment, Identifier [Axis]: Workforce Software, LLC, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	3,532		3,532
Investments, at fair value, ending balance				3,604	[2],[7],[13]	3,532	[1],[3]
Investment, Identifier [Axis]: Workforce Software, LLC, One stop 4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	118		118
Investments, at fair value, ending balance				(2)	[2],[7],[12]	118	[1],[3]
Investment, Identifier [Axis]: Workforce Software, LLC, One stop 5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	69		69
Investments, at fair value, ending balance				106	[2],[7],[13]	69	[1],[3]
Investment, Identifier [Axis]: YE Brands Holding, LLC, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			4,901
Investment, Identifier [Axis]: YE Brands Holding, LLC, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			(1)
Investment, Identifier [Axis]: Zarya Holdco, Inc., One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			4,777
Investment, Identifier [Axis]: Zarya Holdco, Inc., One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			20
Investment, Identifier [Axis]: Zarya Holdco, Inc., Senior secured 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	4,789		4,789
Investments, at fair value, ending balance	[1],[3]					4,789
Investment, Identifier [Axis]: Zarya Holdco, Inc., Senior secured 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	0		0
Investments, at fair value, ending balance	[1],[3]					0
Investment, Identifier [Axis]: Zendesk, Inc, LP units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			629
Investment, Identifier [Axis]: Zendesk, Inc, One stop 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[13]			20,311
Investment, Identifier [Axis]: Zendesk, Inc, One stop 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			0
Investment, Identifier [Axis]: Zendesk, Inc, One stop 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7],[12]			0
Investment, Identifier [Axis]: bswift, LLC, One stop
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, ending balance	[2],[7]			5,100
Investment, Identifier [Axis]: mParticle, Inc., Preferred stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	1,141		1,141
Investments, at fair value, ending balance				911	[2],[7]	1,141	[1],[3]
Investment, Identifier [Axis]: mParticle, Inc., Warrant
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance	[1],[3]	419		419
Investments, at fair value, ending balance				$ 286	[2],[7]	$ 419	[1],[3]
Investments, at Fair Value | Asset Concentration Risk | Non-qualifying Asset
Concentration risk, percentage				15.20%		11.60%
Non-controlled affiliate company investments
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance		57,689	[1],[42]	$ 57,689	[1],[42]	$ 61,379
Gross additions		10,609		59,795
Gross reductions		(7,579)		(12,142)
Net change in unrealized appreciation (depreciation)		(6,886)		(18,578)
Net realized gain (loss)		166		320		166		(3,921)
Investments, at fair value, ending balance				87,084	[2],[43]	57,689	[1],[42]	61,379
Interest, dividend and fee income				4,976		6,504
Controlled affiliate company investments
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Investments, at fair value, beginning balance		$ 14,073	[1],[44]	14,073	[1],[44]	18,237
Gross additions				3,527		4,956
Gross reductions				(3,264)		(2,996)
Net change in unrealized appreciation (depreciation)				(619)		(6,124)
Net realized gain (loss)				(927)		0		0
Investments, at fair value, ending balance				12,790	[2],[45]	14,073	[1],[44]	$ 18,237
Interest, dividend and fee income				$ 307		$ 102

[1] The fair values of investments were valued using significant unobservable inputs, unless noted otherwise. See Note 6. Fair Value Measurements.

[2] The fair values of investments were valued using significant unobservable inputs, unless noted otherwise. See “Note 6. Fair Value Measurements”.

[3] Denotes that all or a portion of the investment collateralizes the JPM Credit Facility (as defined in Note 7).

[4] Denotes that all or a portion of the loan secures the notes offered in the 2018 Debt Securitization (as defined in Note 7).

[5] The headquarters of this portfolio company is located in Canada.

[6] The investment is treated as a non-qualifying asset under Section 55(a) of the 1940 Act. Under the 1940 Act, the Company cannot acquire any non-qualifying asset unless, at the time the acquisition is made, qualifying assets represent at least 70% of the Company's total assets. As of September 30, 2022, total non-qualifying assets at fair value represented 11.6% of the Company's total assets calculated in accordance with the 1940 Act.

[7] Denotes that all or a portion of the investment collateralizes the JPM Credit Facility (as defined in Note 7).

[8] Denotes that all or a portion of the loan secures the notes offered in the 2018 Debt Securitization (as defined in Note 7).

[9] The headquarters of this portfolio company is located in Canada.

[10] The investment is treated as a non-qualifying asset under Section 55(a) of the Investment Company Act of 1940, as amended (the “1940 Act”). Under the 1940 Act, the Company cannot acquire any non-qualifying asset unless, at the time the acquisition is made, qualifying assets represent at least 70% of the Company's total assets. As of September 30, 2023, total non-qualifying assets at fair value represented 15.2% of the Company's total assets calculated in accordance with the 1940 Act.

[11] The negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. The negative amortized cost is the result of the capitalized discount being greater than the principal amount outstanding on the loan.

[12] The negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. The negative amortized cost is the result of the capitalized discount being greater than the principal amount outstanding on the loan.

[13] All or a portion of the loan interest was capitalized into the outstanding principal balance of the loan in accordance with the terms of the credit agreement during the year ended September 30, 2023.

[14] Denotes that all or a portion of the loan secures the notes offered in the GCIC 2018 Debt Securitization (as defined in Note 7).

[15] Denotes that all or a portion of the loan secures the notes offered in the GCIC 2018 Debt Securitization (as defined in Note 7).

[16] Loan was on non-accrual status as of September 30, 2023, meaning that the Company has ceased recognizing interest income on the loan.

[17] The headquarters of this portfolio company is located in Luxembourg.

[18] The Company holds an equity investment that is income producing.

[19] Loan was on non-accrual status as of September 30, 2022, meaning that the Company has ceased recognizing interest income on the loan.

[20] Investment is denominated in foreign currency and is translated into U.S. dollars as of the valuation date or the date of the transaction. See Note 2. Significant Accounting Policies and Recent Accounting Updates - Foreign Currency Transactions.

[21] The headquarters of this portfolio company is located in the United Kingdom.

[22] Investment is denominated in foreign currency and is translated into U.S. dollars as of the valuation date or the date of the transaction. See “Note 2. Significant Accounting Policies and Recent Accounting Updates - Foreign Currency Translation”.

[23] The headquarters of this portfolio company is located in the United Kingdom.

[24] The headquarters of this portfolio company is located in Luxembourg.

[25] The headquarters of this portfolio company is located in Netherlands.

[26] The Company holds an equity investment that is income producing.

[27] The fair value of the loan reflects the legal claim on par and accrued uncapitalized payment-in-kind (“PIK”) interest

[28] The headquarters of this portfolio company is located in Israel.

[29] The headquarters of this portfolio company is located in Israel.

[30] The headquarters of this portfolio company is located in Australia.

[31] The headquarters of this portfolio company is located in Australia.

[32] The fair value of this investment was valued using Level 1 inputs. See “Note 6. Fair Value Measurements”.

[33] The headquarters of this portfolio company is located in Sweden.

[34] The headquarters of this portfolio company is located in Sweden.

[35] Equity investments are non-income producing securities unless otherwise noted.

[36] Ownership of certain equity investments occurs through a holding company or partnership.

[37] The headquarters of this portfolio company is located in Netherlands.

[38] The headquarters of this portfolio company is located in Finland.

[39] The headquarters of this portfolio company is located in Finland.

[40] The headquarters of this portfolio company is located in Denmark.

[41] The headquarters of this portfolio company is located in Denmark.

[42] Transactions related to investments in non-controlled affiliates for the year ended September 30, 2022 were as follows: Portfolio Company Fair value as of September 30, 2021 Gross Additions(a) Gross Reductions(b) Net change in unrealized appreciation (depreciation)Net realized gain (loss)Fair value as of September 30, 2022Interest, dividend and fee incomeAbita Brewing Co. LLC$10,050 $413 $(212)$(2,180)$— $8,071 $823  Benetech, Inc. 2,399 2,821 (2,512)(968)— 1,740 227 Elite Dental Partners LLC16,952 4,151 (60)(354)— 20,689 1,313 Paradigm DKD Group, LLC2,627 357 (3,605)(571)1,192 — 2,026 Rubio's Restaurants, Inc17,559 4 (44)(4,345)— 13,174 1,379 Sloan Company, Inc.5,162 1,520 (648)284 — 6,318 127  Switchfly LLC 6,168 1,321 — 208 — 7,697 603  Uinta Brewing Company 462 22 (498)1,040 (1,026)— 6  Total Non-Controlled Affiliates $61,379 $10,609 $(7,579)$(6,886)$166 $57,689 $6,504  (a) Gross additions may include increases in the cost basis of investments resulting from new investments, amounts related to PIK interest capitalized and added to the principal balance of the respective loans, the accretion of discounts, the exchange of one or more existing investments for one or more new investments and the movement of an existing portfolio company into this affiliated category from a different category. (b) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments and sales, the amortization of premiums, the reversal of capitalized PIK for non-accrual positions and the exchange of one or more existing securities for one or more new securities.

[43] As defined in the 1940 Act, the Company is deemed to be an “affiliated person” of the portfolio company as the Company owns five percent or more of the portfolio company's voting securities (“non-controlled affiliate”). Transactions related to investments in non-controlled affiliates for the year ended September 30, 2023 were as follows: Portfolio CompanyFair value as of September 30, 2022 Gross Additions(a) Gross Reductions(b) Net change in unrealized appreciation (depreciation)Net realized gain (loss)Fair value as of September 30, 2023Interest, dividend and fee incomeAbita Brewing Co. LLC$8,071 $1,334 $(728)$(2,141)$— $6,536 $805 Bayside Opco, LLC— 22,958 (619)(295)— 22,044 749 Benetech, Inc.1,740 618 (710)(295)— 1,353 9 Elite Dental Partners LLC20,689 4,308 (1,147)(10,454)— 13,396 1,005 Opening Day Borrower 111 LLC— 25,387 (1,149)200 — 24,438 — Rubio's Restaurants, Inc.13,174 4,943 (1,460)(4,594)— 12,063 1,922 Sloan Company, Inc.6,318 38 (6,329)(347)320 — 344 Switchfly LLC7,697 209 — (652)— 7,254 142 Total Non-Controlled Affiliates$57,689 $59,795 $(12,142)$(18,578)$320 $87,084 $4,976  (a) Gross additions may include increases in the cost basis of investments resulting from new investments, amounts related to PIK interest capitalized and added to the principal balance of the respective loans, the accretion of discounts, the exchange of one or more existing investments for one or more new investments and the movement of an existing portfolio company into this affiliated category from a different category. (b) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments and sales, the amortization of premiums, the reversal of capitalized PIK for non-accrual positions and the exchange of one or more existing securities for one or more new securities.

[44] Transactions related to investments in controlled affiliates for the year ended September 30, 2022 were as follows: Portfolio Company Fair value as of September 30, 2021 Gross Additions(a) Gross Reductions(b) Net change in unrealized appreciation (depreciation)Net realized gain (loss)Fair value as of September 30, 2022Interest, dividend and fee incomeMMan Acquisition Co.$18,237 $4,956 $(2,996)$(6,124)$— $14,073 $102  Total Controlled Affiliates $18,237 $4,956 $(2,996)$(6,124)$— $14,073 $102  (a) Gross additions may include increases in the cost basis of investments resulting from new investments, amounts related to PIK interest capitalized and added to the principal balance of the respective loans, the accretion of discounts, the exchange of one or more existing investments for one or more new investments and the movement of an existing portfolio company into this affiliated category from a different category. (b) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the amortization of premiums, the reversal of capitalized PIK for non-accrual positions and the exchange of one or more existing securities for one or more new securities.

[45] As defined in the 1940 Act, the Company is deemed to be both an “affiliated person” of and “control” this portfolio company as the Company owns more than 25% of the portfolio company's outstanding voting securities or has the power to exercise control over management or policies of such portfolio company (including through a management agreement) (“controlled affiliate”). Transactions related to investments in controlled affiliates for the year ended September 30, 2023 were as follows: Portfolio CompanyFair value as of September 30, 2022 Gross Additions(a) Gross Reductions(b) Net change in unrealized appreciation (depreciation)Net realized gain (loss)Fair value as of September 30, 2023Interest, dividend and fee incomeMMan Acquisition Co.$14,073 $3,527 $(3,264)$(619)$(927)$12,790 $307 Total Controlled Affiliates$14,073 $3,527 $(3,264)$(619)$(927)$12,790 $307  (a) Gross additions may include increases in the cost basis of investments resulting from new investments, amounts related to PIK interest capitalized and added to the principal balance of the respective loans, the accretion of discounts, the exchange of one or more existing investments for one or more new investments and the movement of an existing portfolio company into this affiliated category from a different category. (b) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the amortization of premiums, the reversal of capitalized PIK for non-accrual positions and the exchange of one or more existing securities for one or more new securities.