Consolidated Schedule of Investments In and Advances to Affiliate (Details)

v3.23.3

Consolidated Schedule of Investments In and Advances to Affiliate (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
		Sep. 30, 2023		Sep. 30, 2022	Sep. 30, 2023		Sep. 30, 2022	Dec. 31, 2022
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		$ 435		$ 7,238	$ (24,986)		$ 7,865
Amount of Unrealized Gain/(Loss)		(1,202)		(4,435)	30,415		(11,452)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				1,068,143
Ending balance	[2]	1,103,813			1,103,813
Fair value		1,103,813	[2]		1,103,813	[2]		$ 1,068,143	[1]
Control investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		546		0	2,223		0
Amount of Unrealized Gain/(Loss)		(735)		574	(1,433)		1,959
Amount of Interest, Fees or Dividends Credited to Income					2,321		2,595
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					50,303	[1],[3]	46,583
Gross Additions					16,819		3,983
Gross Reductions					13,056		20
Ending balance		54,066	[2],[4]	50,546	54,066	[2],[4]	50,546
Fair value		54,066	[2],[4]	50,546	54,066	[2],[4]	50,546	50,303	[1],[3]
Control investments | Southwest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		53,478		49,836	53,478		49,836
Fair value		$ 53,478		$ 49,836	$ 53,478		$ 49,836
Net assets, percentage		8.70%		7.30%	8.70%		7.30%
Control investments | West
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 588		$ 710	$ 588		$ 710
Fair value		$ 588		$ 710	$ 588		$ 710
Net assets, percentage		0.10%		0.10%	0.10%		0.10%
Affiliate investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		$ (2)		$ (1,456)	$ (7,188)		$ (676)
Amount of Unrealized Gain/(Loss)		4,780		3,909	22,468		4,401
Amount of Interest, Fees or Dividends Credited to Income					22,241		17,443
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					277,000	[1],[5]	234,158
Gross Additions					91,114		44,547
Gross Reductions					92,225		21,287
Ending balance		275,889	[2],[6]	257,418	275,889	[2],[6]	257,418
Fair value		275,889	[2],[6]	257,418	275,889	[2],[6]	257,418	277,000	[1],[5]
Affiliate investments | Midwest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		98,341		81,573	98,341		81,573
Fair value		$ 98,341		$ 81,573	$ 98,341		$ 81,573
Net assets, percentage		16.00%		11.90%	16.00%		11.90%
Affiliate investments | Northeast
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 40,617		$ 23,926	$ 40,617		$ 23,926
Fair value		$ 40,617		$ 23,926	$ 40,617		$ 23,926
Net assets, percentage		6.60%		3.50%	6.60%		3.50%
Affiliate investments | Southeast
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 31,613		$ 42,381	$ 31,613		$ 42,381
Fair value		$ 31,613		$ 42,381	$ 31,613		$ 42,381
Net assets, percentage		5.20%		6.20%	5.20%		6.20%
Affiliate investments | Southwest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 75,393		$ 72,938	$ 75,393		$ 72,938
Fair value		$ 75,393		$ 72,938	$ 75,393		$ 72,938
Net assets, percentage		12.30%		10.70%	12.30%		10.70%
Affiliate investments | West
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 29,925		$ 36,600	$ 29,925		$ 36,600
Fair value		$ 29,925		$ 36,600	$ 29,925		$ 36,600
Net assets, percentage		4.90%		5.30%	4.90%		5.30%
Investment, Identifier [Axis]: AAC Holdings, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				$ 0
Ending balance	[8]	$ 0			0
Fair value		$ 0	[8]		0	[8]		$ 0	[7]
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7]							18.00%
PIK Rate	[7]							18.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				$ 4,110
Fair value	[7]							$ 4,110
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8]	18.00%			18.00%
PIK Rate	[8]	18.00%			18.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8]	$ 135			$ 135
Fair value	[8]	$ 135			$ 135
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[8]	18.00%			18.00%
PIK Rate	[8]	18.00%			18.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8]	$ 4,501			$ 4,501
Fair value	[8]	4,501			4,501
Investment, Identifier [Axis]: AAC Holdings, Inc., Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[9]				0
Ending balance	[8],[10]	0			0
Fair value		$ 0	[8],[10]		$ 0	[8],[10]		$ 0	[7],[9]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[12]	13.50%			13.50%
Spread		5.00%	[11],[12]		5.00%	[11],[12]		6.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (5)
Ending balance	[11],[12]	$ 198			198
Fair value		$ 198	[11],[12]		$ 198	[11],[12]		$ (5)	[13],[14]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[13],[14]							10.20%
Spread		6.00%	[11],[12],[15],[16]		6.00%	[11],[12],[15],[16]		6.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 86
Ending balance	[11],[12],[15],[16]	$ (16)			(16)
Fair value		$ (16)	[11],[12],[15],[16]		$ (16)	[11],[12],[15],[16]		$ 86	[13],[14]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.42%	[11],[12],[15]		11.42%	[11],[12],[15]		10.58%	[13],[14]
Spread		6.00%	[11],[12],[15]		6.00%	[11],[12],[15]		6.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 1,983
Ending balance	[11],[12],[15]	$ 2,316			2,316
Fair value		$ 2,316	[11],[12],[15]		$ 2,316	[11],[12],[15]		$ 1,983	[13],[14]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	11.42%			11.42%
Spread	[11],[12],[15]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 776			$ 776
Fair value	[11],[12],[15]	$ 776			$ 776
Investment, Identifier [Axis]: ADS Tactical, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.18%	[8],[12],[15]		11.18%	[8],[12],[15]		10.14%	[7],[14]
Spread		5.75%	[8],[12],[15]		5.75%	[8],[12],[15]		5.75%	[7],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14]				$ 8,213
Ending balance	[8],[12],[15]	$ 7,388			7,388
Fair value		7,388	[8],[12],[15]		7,388	[8],[12],[15]		$ 8,213	[7],[14]
Investment, Identifier [Axis]: AFG Capital Group, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					1,800		$ 0
Amount of Unrealized Gain/(Loss)					(2,050)		260
Amount of Interest, Fees or Dividends Credited to Income					0		50
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,350	[17]	1,930
Gross Additions					1,800		260
Gross Reductions					4,150		0
Ending balance		0		$ 2,190	0		2,190
Fair value		0		2,190	0		2,190	2,350	[17]
Investment, Identifier [Axis]: AFG Capital Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							36
Gross Additions							0
Gross Reductions							36
Ending balance				0			0
Fair value				0			0
Investment, Identifier [Axis]: AMEREQUIP LLC., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				80
Ending balance	[11],[18]	90			90
Fair value		$ 90	[11],[18]		$ 90	[11],[18]		$ 80	[13]
Investment, Identifier [Axis]: AMEREQUIP LLC., Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.40%	[11],[12],[15],[16]		7.40%	[11],[12],[15],[16]		7.40%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 0
Ending balance	[11],[12],[15],[16]	$ 0			0
Fair value		$ 0	[11],[12],[15],[16]		$ 0	[11],[12],[15],[16]		$ 0	[13],[14]
Investment, Identifier [Axis]: AMEREQUIP LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.87%	[11],[12],[15]		12.87%	[11],[12],[15]		11.72%	[13],[14]
Spread		7.40%	[11],[12],[15]		7.40%	[11],[12],[15]		7.40%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 2,025
Ending balance	[11],[12],[15]	$ 1,738			1,738
Fair value		1,738	[11],[12],[15]		1,738	[11],[12],[15]		$ 2,025	[13],[14]
Investment, Identifier [Axis]: ATS Operating, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				90
Ending balance	[11]	80			80
Fair value		$ 80	[11]		$ 80	[11]		$ 90	[13]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	12.01%			12.01%
Spread		6.50%	[11],[12],[15]		6.50%	[11],[12],[15]		5.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 0
Ending balance	[11],[12],[15]	$ 100			100
Fair value		$ 100	[11],[12],[15]		$ 100	[11],[12],[15]		$ 0	[13],[14]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.01%	[11],[12],[15]		11.01%	[11],[12],[15]		9.32%	[13],[14]
Spread		5.50%	[11],[12],[15]		5.50%	[11],[12],[15]		5.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 914
Ending balance	[11],[12],[15]	$ 925			925
Fair value		$ 925	[11],[12],[15]		$ 925	[11],[12],[15]		$ 914	[13],[14]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.01%	[11],[12],[15]		13.01%	[11],[12],[15]		11.32%	[13],[14]
Spread		7.50%	[11],[12],[15]		7.50%	[11],[12],[15]		7.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 916
Ending balance	[11],[12],[15]	$ 925			925
Fair value		925	[11],[12],[15]		925	[11],[12],[15]		$ 916	[13],[14]
Investment, Identifier [Axis]: ATX Networks Corp., Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					3,178		0
Amount of Unrealized Gain/(Loss)					(3,290)		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,290	[7]	0
Gross Additions					3,178		0
Gross Reductions					6,468		0
Ending balance		0		0	0		0
Fair value		$ 0		$ 0	$ 0		$ 0	$ 3,290	[7]
Investment, Identifier [Axis]: ATX Networks Corp., Secured Debt
Schedule of Investments [Line Items]
Total Rate				11.14%			11.14%	12.23%	[7],[14]
Spread		7.50%		7.50%	7.50%		7.50%	7.50%	[7],[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(102)		405
Amount of Interest, Fees or Dividends Credited to Income					856		559
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,368	[7],[14]	7,121
Gross Additions					545		633
Gross Reductions					6,913		1,019
Ending balance		$ 0		$ 6,735	0		6,735
Fair value		0		$ 6,735	0		$ 6,735	$ 6,368	[7],[14]
Investment, Identifier [Axis]: ATX Networks Corp., Unsecured Debt
Schedule of Investments [Line Items]
Total Rate				10.00%			10.00%	10.00%	[7]
PIK Rate				10.00%			10.00%	10.00%	[7]
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					(276)		263
Amount of Interest, Fees or Dividends Credited to Income					1,135		240
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,614	[7]	1,977
Gross Additions					1,135		504
Gross Reductions					3,749		0
Ending balance		0		$ 2,481	0		2,481
Fair value		0		2,481	0		2,481	$ 2,614	[7]
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				56
Ending balance	[11]	124			124
Fair value		$ 124	[11]		$ 124	[11]		$ 56	[13]
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	12.67%			12.67%
Spread		7.25%	[11],[12],[15]		7.25%	[11],[12],[15]		7.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (8)
Ending balance	[11],[12],[15]	$ 198			198
Fair value		$ 198	[11],[12],[15]		$ 198	[11],[12],[15]		$ (8)	[13],[14]
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.80%	[11],[12],[15]		12.80%	[11],[12],[15]		12.17%	[13],[14]
Spread		7.25%	[11],[12],[15]		7.25%	[11],[12],[15]		7.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 3,876
Ending balance	[11],[12],[15]	$ 3,327			3,327
Fair value		$ 3,327	[11],[12],[15]		$ 3,327	[11],[12],[15]		$ 3,876	[13],[14]
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[13],[14]							13.88%
Spread		7.50%	[11],[12],[15],[16]		7.50%	[11],[12],[15],[16]		9.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 4,616
Ending balance	[11],[12],[15],[16]	$ (8)			(8)
Fair value		$ (8)	[11],[12],[15],[16]		$ (8)	[11],[12],[15],[16]		$ 4,616	[13],[14]
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.99%	[11],[12],[15]		12.99%	[11],[12],[15]		13.57%	[13],[14]
Spread		7.50%	[11],[12],[15]		7.50%	[11],[12],[15]		9.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 1,379
Ending balance	[11],[12],[15]	$ 12,073			12,073
Fair value		12,073	[11],[12],[15]		12,073	[11],[12],[15]		$ 1,379	[13],[14]
Investment, Identifier [Axis]: Acumera, Inc., Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[19]	90			90
Fair value	[11],[19]	$ 90			$ 90
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.00%	[11],[12],[15],[20]		11.00%	[11],[12],[15],[20]		10.00%	[13],[14],[21]
Spread		7.00%	[11],[12],[15],[20]		7.00%	[11],[12],[15],[20]		6.00%	[13],[14],[21]
PIK Rate	[11],[12],[15],[20]	1.00%			1.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14],[21]				$ 565
Ending balance	[11],[12],[15],[20]	$ 839			839
Fair value		$ 839	[11],[12],[15],[20]		$ 839	[11],[12],[15],[20]		$ 565	[13],[14],[21]
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.00%	[11],[12],[15],[20]		11.00%	[11],[12],[15],[20]		10.00%	[13],[14],[21]
Spread		7.00%	[11],[12],[15],[20]		7.00%	[11],[12],[15],[20]		7.50%	[13],[14],[21]
PIK Rate	[11],[12],[15],[20]	1.00%			1.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14],[21]				$ 2,826
Ending balance	[11],[12],[15],[20]	$ 2,646			2,646
Fair value		$ 2,646	[11],[12],[15],[20]		$ 2,646	[11],[12],[15],[20]		$ 2,826	[13],[14],[21]
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[11],[12],[16]		6.00%	[11],[12],[16]		6.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (13)
Ending balance	[11],[12],[16]	$ (11)			(11)
Fair value		$ (11)	[11],[12],[16]		$ (11)	[11],[12],[16]		$ (13)	[13],[14]
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.43%	[11],[12]		11.43%	[11],[12]		11.12%	[13],[14]
Spread		6.00%	[11],[12]		6.00%	[11],[12]		6.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 8,271
Ending balance	[11],[12]	$ 8,208			8,208
Fair value		$ 8,208	[11],[12]		$ 8,208	[11],[12]		$ 8,271	[13],[14]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.15%	[11],[12],[15]		15.15%	[11],[12],[15]		10.46%	[13],[14]
Spread		8.75%	[11],[12],[15]		8.75%	[11],[12],[15]		6.75%	[13],[14]
PIK Rate	[11],[12],[15]	1.00%			1.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 4,148
Ending balance	[11],[12],[15]	$ 3,548			3,548
Fair value		$ 3,548	[11],[12],[15]		$ 3,548	[11],[12],[15]		$ 4,148	[13],[14]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.15%	[11],[12],[15]		15.15%	[11],[12],[15]		12.46%	[13],[14]
Spread		8.75%	[11],[12],[15]		8.75%	[11],[12],[15]		8.75%	[13],[14]
PIK Rate	[11],[12],[15]	1.00%			1.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 4,161
Ending balance	[11],[12],[15]	$ 0			0
Fair value		$ 0	[11],[12],[15]		$ 0	[11],[12],[15]		$ 4,161	[13],[14]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15],[22]	17.15%			17.15%
Spread	[11],[12],[15],[22]	10.75%			10.75%
PIK Rate	[11],[12],[15],[22]	1.00%			1.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15],[22]	$ 2,332			$ 2,332
Fair value	[11],[12],[15],[22]	$ 2,332			$ 2,332
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15],[22]	17.15%			17.15%
Spread	[11],[12],[15],[22]	10.75%			10.75%
PIK Rate	[11],[12],[15],[22]	1.00%			1.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15],[22]	$ 0			$ 0
Fair value	[11],[12],[15],[22]	$ 0			$ 0
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		7.50%	[8],[22],[23]		7.50%	[8],[22],[23]		7.50%	[7],[24]
Spread		6.50%	[8],[22],[23]		6.50%	[8],[22],[23]		6.50%	[7],[24]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[24]				$ 136
Ending balance	[8],[22],[23]	$ 109			109
Fair value		$ 109	[8],[22],[23]		$ 109	[8],[22],[23]		$ 136	[7],[24]
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		7.50%	[8],[12],[22],[23]		7.50%	[8],[12],[22],[23]		7.50%	[7],[14],[24]
Spread		6.50%	[8],[12],[22],[23]		6.50%	[8],[12],[22],[23]		6.50%	[7],[14],[24]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14],[24]				$ 658
Ending balance	[8],[12],[22],[23]	$ 526			526
Fair value		526	[8],[12],[22],[23]		526	[8],[12],[22],[23]		$ 658	[7],[14],[24]
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Affiliate Investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					(1,541)		0
Amount of Unrealized Gain/(Loss)					649		0
Amount of Interest, Fees or Dividends Credited to Income					(151)		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0		0	0		0
Fair value		0		0	0		0	0
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Control Investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					1,541		0
Amount of Unrealized Gain/(Loss)					(649)		0
Amount of Interest, Fees or Dividends Credited to Income					(94)		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(6,392)		0
Gross Additions					6,392		0
Gross Reductions					0		0
Ending balance		0		0	0		0
Fair value		$ 0		$ 0	$ 0		$ 0	$ (6,392)
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Total Rate		14.13%		12.63%	14.13%		12.63%	14.13%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	0		0
Fair value		0		0	0		0	$ 0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					260		(260)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					880		1,220
Gross Additions					260		0
Gross Reductions					0		260
Ending balance		1,140		960	1,140		960
Fair value		$ 1,140		$ 960	$ 1,140		$ 960	$ 880
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15]	15.38%			15.38%
Spread		10.00%	[12],[15]	10.00%	10.00%	[12],[15]	10.00%	10.00%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					2		2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(2)	[14]	(4)
Gross Additions					41		1
Gross Reductions					0		0
Ending balance		$ 39	[12],[15]	$ (3)	39	[12],[15]	(3)
Fair value		$ 39	[12],[15]	$ (3)	$ 39	[12],[15]	$ (3)	$ (2)	[14]
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.38%	[12],[15]	12.63%	15.38%	[12],[15]	12.63%	14.13%	[14]
Spread		10.00%	[12],[15]	10.00%	10.00%	[12],[15]	10.00%	10.00%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					143		127
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,135	[14]	1,182
Gross Additions					16		17
Gross Reductions					118		52
Ending balance		$ 1,033	[12],[15]	$ 1,147	1,033	[12],[15]	1,147
Fair value		1,033	[12],[15]	1,147	1,033	[12],[15]	1,147	$ 1,135	[14]
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Warrants
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[9]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0	[10]	0	0	[10]	0
Fair value		0	[10]	0	0	[10]	0	0	[9]
Investment, Identifier [Axis]: ArborWorks, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				0
Ending balance	[11]	0			0
Fair value		$ 0	[11]		$ 0	[11]		$ 0	[13]
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.43%	[11],[12],[15],[22]		15.43%	[11],[12],[15],[22]		13.41%	[13],[14]
Spread		7.00%	[11],[12],[15],[22]		7.00%	[11],[12],[15],[22]		9.00%	[13],[14]
PIK Rate	[11],[12],[15],[22]	3.00%			3.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 2,095
Ending balance	[11],[12],[15],[22]	$ 2,071			2,071
Fair value		$ 2,071	[11],[12],[15],[22]		$ 2,071	[11],[12],[15],[22]		$ 2,095	[13],[14]
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.43%	[11],[12],[15],[22]		15.43%	[11],[12],[15],[22]		13.56%	[13],[14]
Spread		7.00%	[11],[12],[15],[22]		7.00%	[11],[12],[15],[22]		9.00%	[13],[14]
PIK Rate	[11],[12],[15],[22]	3.00%			3.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 13,313
Ending balance	[11],[12],[15],[22]	$ 8,822			8,822
Fair value		8,822	[11],[12],[15],[22]		8,822	[11],[12],[15],[22]		$ 13,313	[13],[14]
Investment, Identifier [Axis]: Archer Systems, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				62
Ending balance	[11]	90			90
Fair value		$ 90	[11]		$ 90	[11]		$ 62	[13]
Investment, Identifier [Axis]: Archer Systems, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[11],[12],[15],[16]		6.00%	[11],[12],[15],[16]		6.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (4)
Ending balance	[11],[12],[15],[16]	$ (4)			(4)
Fair value		$ (4)	[11],[12],[15],[16]		$ (4)	[11],[12],[15],[16]		$ (4)	[13],[14]
Investment, Identifier [Axis]: Archer Systems, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.54%	[11],[12],[15]		11.54%	[11],[12],[15]		10.92%	[13],[14]
Spread		6.00%	[11],[12],[15]		6.00%	[11],[12],[15]		6.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 2,170
Ending balance	[11],[12],[15]	$ 1,776			1,776
Fair value		1,776	[11],[12],[15]		1,776	[11],[12],[15]		$ 2,170	[13],[14]
Investment, Identifier [Axis]: BBB Tank Services, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Ending balance		0			0
Fair value		$ 0			$ 0			$ 0
Investment, Identifier [Axis]: BBB Tank Services, LLC, Preferred Stock (non-voting)
Schedule of Investments [Line Items]
Total Rate		15.00%			15.00%			15.00%
PIK Rate		15.00%			15.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 0
Ending balance		$ 0			0
Fair value		$ 0			$ 0			$ 0
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 1
Schedule of Investments [Line Items]
Total Rate		16.44%	[12],[23]		16.44%	[12],[23]		15.12%	[14],[25]
Spread		11.00%	[12],[23]		11.00%	[12],[23]		11.00%	[14],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[25]				$ 200
Ending balance	[12],[23]	$ 150			150
Fair value		$ 150	[12],[23]		$ 150	[12],[23]		$ 200	[14],[25]
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 2
Schedule of Investments [Line Items]
Total Rate		16.44%	[12],[23]		16.44%	[12],[23]		15.12%	[14],[25]
Spread		11.00%	[12],[23]		11.00%	[12],[23]		11.00%	[14],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[25]				$ 522
Ending balance	[12],[23]	$ 550			550
Fair value		550	[12],[23]		550	[12],[23]		$ 522	[14],[25]
Investment, Identifier [Axis]: Barfly Ventures, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(94)		463
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,107	[13]	643
Gross Additions					0		464
Gross Reductions					94		0
Ending balance		1,013	[11]	1,107	1,013	[11]	1,107
Fair value		1,013	[11]	1,107	1,013	[11]	1,107	1,107	[13]
Investment, Identifier [Axis]: Batjer TopCo, LLC, Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					225		0
Amount of Interest, Fees or Dividends Credited to Income					70		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					455	[17]	0
Gross Additions					225		455
Gross Reductions					0		0
Ending balance		680	[18]	455	680	[18]	455
Fair value		680	[18]	455	680	[18]	455	455	[17]
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(1)		0
Gross Additions					1		50
Gross Reductions					0		51
Ending balance		0	[16]	(1)	0	[16]	(1)
Fair value		$ 0	[16]	$ (1)	$ 0	[16]	$ (1)	$ (1)
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%		11.00%	10.00%		11.00%	11.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							81
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 1,205		0
Gross Additions							1,203
Gross Reductions							0
Ending balance		$ 70		$ 1,203	70		1,203
Fair value		$ 70		1,203	$ 70		1,203	$ 1,205
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		10.00%			10.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					70
Gross Reductions					0
Ending balance		$ 70			70
Fair value		$ 70			$ 70			0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.00%			10.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					16
Amount of Interest, Fees or Dividends Credited to Income					98
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,205
Gross Additions					20
Gross Reductions					50
Ending balance		$ 1,175			1,175
Fair value		1,175			1,175			$ 1,205
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 1
Schedule of Investments [Line Items]
Total Rate	[13],[17],[26]							8.00%
PIK Rate	[13],[17],[26]							8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[17],[26]				4,561
Ending balance	[11],[18],[27]	2,820			2,820
Fair value		2,820	[11],[18],[27]		2,820	[11],[18],[27]		$ 4,561	[13],[17],[26]
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 2
Schedule of Investments [Line Items]
PIK Rate	[13],[17],[26]							16.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[17],[26]				270
Ending balance	[11],[18],[27]	220			220
Fair value		$ 220	[11],[18],[27]		220	[11],[18],[27]		$ 270	[13],[17],[26]
Investment, Identifier [Axis]: Berry Aviation, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[13]							12.00%
PIK Rate	[13]							1.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				$ 190
Fair value	[13]							$ 190
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.25%	[11],[12],[15],[16]		7.25%	[11],[12],[15],[16]		1.00%	[13],[14]
PIK Rate	[13],[14]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (22)
Ending balance	[11],[12],[15],[16]	$ (19)			(19)
Fair value		$ (19)	[11],[12],[15],[16]		$ (19)	[11],[12],[15],[16]		$ (22)	[13],[14]
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.67%	[11],[12],[15]		12.67%	[11],[12],[15]		11.40%	[13],[14]
Spread		7.25%	[11],[12],[15]		7.25%	[11],[12],[15]		1.00%	[13],[14]
PIK Rate		6.25%	[11],[12],[15]		6.25%	[11],[12],[15]		6.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 7,991
Ending balance	[11],[12],[15]	$ 8,053			8,053
Fair value		8,053	[11],[12],[15]		8,053	[11],[12],[15]		$ 7,991	[13],[14]
Investment, Identifier [Axis]: Binswanger Enterprises, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				420
Ending balance	[11]	20			20
Fair value		20	[11]		20	[11]		420	[13]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[17]				4,708
Ending balance	[8]	1,104			1,104
Fair value		$ 1,104	[8]		$ 1,104	[8]		$ 4,708	[7],[17]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8],[12]	16.00%			16.00%
Spread		7.50%	[8],[12]		7.50%	[8],[12]		8.50%	[7],[14]
PIK Rate	[8],[12]	15.00%			15.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14]				$ 0
Ending balance	[8],[12]	$ 2,491			2,491
Fair value		$ 2,491	[8],[12]		$ 2,491	[8],[12]		$ 0	[7],[14]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.94%	[8],[12],[15]		13.94%	[8],[12],[15]		12.94%	[7],[14]
Spread		8.50%	[8],[12],[15]		8.50%	[8],[12],[15]		8.50%	[7],[14]
PIK Rate	[8],[12],[15]	12.94%			12.94%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14]				$ 3,366
Ending balance	[8],[12],[15]	$ 3,586			3,586
Fair value		3,586	[8],[12],[15]		3,586	[8],[12],[15]		$ 3,366	[7],[14]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[9]				1,173
Ending balance	[8],[10]	279			279
Fair value		279	[8],[10]		279	[8],[10]		1,173	[7],[9]
Investment, Identifier [Axis]: Boccella Precast Products LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[17]				741
Ending balance		533			533
Fair value		$ 533			$ 533			$ 741	[17]
Investment, Identifier [Axis]: Boccella Precast Products LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.00%			10.00%			10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 80
Ending balance		$ 80			80
Fair value		80			80			$ 80
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[28],[29]	360			360
Fair value	[11],[28],[29]	$ 360			$ 360
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[15],[16],[28],[29]	7.00%			7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15],[16],[28],[29]	$ (17)			$ (17)
Fair value	[11],[12],[15],[16],[28],[29]	$ (17)			$ (17)
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15],[28],[29]	11.40%			11.40%
Spread	[11],[12],[15],[28],[29]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15],[28],[29]	$ 4,009			$ 4,009
Fair value	[11],[12],[15],[28],[29]	$ 4,009			$ 4,009
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15],[28],[29]	13.40%			13.40%
Spread	[11],[12],[15],[28],[29]	8.00%			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15],[28],[29]	$ 4,009			$ 4,009
Fair value	[11],[12],[15],[28],[29]	4,009			4,009
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(370)		(510)
Amount of Interest, Fees or Dividends Credited to Income					23		199
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,770	[17]	1,930
Gross Additions					0		0
Gross Reductions					370		510
Ending balance		1,400	[18]	1,420	1,400	[18]	1,420
Fair value		$ 1,400	[18]	$ 1,420	$ 1,400	[18]	$ 1,420	$ 1,770	[17]
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.44%	[12]	12.56%	15.44%	[12]	12.56%	14.12%	[14]
Spread		10.00%	[12]	10.00%	10.00%	[12]	10.00%	10.00%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(29)		0
Amount of Interest, Fees or Dividends Credited to Income					169		166
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,491	[14]	2,005
Gross Additions					8		8
Gross Reductions					123		493
Ending balance		$ 1,376	[12]	$ 1,520	1,376	[12]	1,520
Fair value		1,376	[12]	1,520	1,376	[12]	1,520	$ 1,491	[14]
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund III, LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[17],[30],[31],[32]				1,576
Ending balance	[29],[33],[34]	1,407			1,407
Fair value		1,407	[29],[33],[34]		1,407	[29],[33],[34]		1,576	[17],[30],[31],[32]
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund IV, LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[17],[30],[31],[32]				9,082
Ending balance	[18],[29],[33],[34]	9,322			9,322
Fair value		$ 9,322	[18],[29],[33],[34]		$ 9,322	[18],[29],[33],[34]		$ 9,082	[17],[30],[31],[32]
Investment, Identifier [Axis]: Buca C, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		6.00%			6.00%			6.00%
PIK Rate		6.00%			6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 0
Ending balance		$ 0			0
Fair value		$ 0			$ 0			$ 0
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.00%	[23]		12.00%	[23]		9.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 8,345
Ending balance	[23]	$ 8,292			8,292
Fair value		$ 8,292	[23]		$ 8,292	[23]		$ 8,345
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	10.42%			10.42%
Spread		5.00%	[11],[12],[15]		5.00%	[11],[12],[15]		5.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 0
Ending balance	[11],[12],[15]	$ 310			310
Fair value		$ 310	[11],[12],[15]		$ 310	[11],[12],[15]		$ 0	[13],[14]
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.42%	[11],[12],[15]		10.42%	[11],[12],[15]		8.91%	[13],[14]
Spread		5.00%	[11],[12],[15]		5.00%	[11],[12],[15]		5.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 13,255
Ending balance	[11],[12],[15]	$ 13,154			13,154
Fair value		13,154	[11],[12],[15]		13,154	[11],[12],[15]		$ 13,255	[13],[14]
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[17]				379
Ending balance		379			379
Fair value		379			379			379	[17]
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Ending balance		0			0
Fair value		$ 0			0			$ 0
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[13],[14],[35]							11.99%
Spread	[13],[14],[35]							8.50%
PIK Rate	[13],[14],[35]							0.01%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14],[35]				$ 20,112
Fair value	[13],[14],[35]							$ 20,112
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	12.07%			12.07%
Spread	[11],[12],[15]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 5,003			$ 5,003
Fair value	[11],[12],[15]	$ 5,003			$ 5,003
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	12.07%			12.07%
Spread	[11],[12],[15]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 1,557			$ 1,557
Fair value	[11],[12],[15]	$ 1,557			$ 1,557
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	12.07%			12.07%
Spread	[11],[12],[15]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 0			$ 0
Fair value	[11],[12],[15]	$ 0			$ 0
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	12.07%			12.07%
Spread	[11],[12],[15]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 0			$ 0
Fair value	[11],[12],[15]	$ 0			$ 0
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	12.07%			12.07%
Spread	[11],[12],[15]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 54			$ 54
Fair value	[11],[12],[15]	$ 54			$ 54
Investment, Identifier [Axis]: Camin Cargo Control, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.93%	[8],[12],[15]		11.93%	[8],[12],[15]		10.88%	[7],[14]
Spread		6.50%	[8],[12],[15]		6.50%	[8],[12],[15]		6.50%	[7],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14]				$ 7,342
Ending balance	[8],[12],[15]	$ 7,304			7,304
Fair value		7,304	[8],[12],[15]		7,304	[8],[12],[15]		$ 7,342	[7],[14]
Investment, Identifier [Axis]: Career Team Holdings, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					500
Ending balance		500			500
Fair value		$ 500			$ 500			$ 500
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[12],[15],[16]		6.00%	[12],[15],[16]		6.00%	[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				$ (3)
Ending balance	[12],[15],[16]	$ (4)			(4)
Fair value		$ (4)	[12],[15],[16]		$ (4)	[12],[15],[16]		$ (3)	[14]
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%			12.50%			12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 2,196
Ending balance		$ 2,197			2,197
Fair value		2,197			2,197			$ 2,196
Investment, Identifier [Axis]: CaseWorthy, Inc., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				80
Ending balance	[11]	80			80
Fair value		$ 80	[11]		$ 80	[11]		$ 80	[13]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[11],[12],[15],[16]		6.00%	[11],[12],[15],[16]		6.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (4)
Ending balance	[11],[12],[15],[16]	$ (3)			(3)
Fair value		$ (3)	[11],[12],[15],[16]		$ (3)	[11],[12],[15],[16]		$ (4)	[13],[14]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.65%	[11],[12],[15]		11.65%	[11],[12],[15]		10.73%	[13],[14]
Spread		6.00%	[11],[12],[15]		6.00%	[11],[12],[15]		6.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 2,574
Ending balance	[11],[12],[15]	$ 2,594			2,594
Fair value		$ 2,594	[11],[12],[15]		$ 2,594	[11],[12],[15]		$ 2,574	[13],[14]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.65%	[11],[12],[15]		11.65%	[11],[12],[15]		10.48%	[13],[14]
Spread		6.00%	[11],[12],[15]		6.00%	[11],[12],[15]		5.75%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 1,995
Ending balance	[11],[12],[15]	$ 1,995			1,995
Fair value		1,995	[11],[12],[15]		1,995	[11],[12],[15]		$ 1,995	[13],[14]
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					430		509
Amount of Interest, Fees or Dividends Credited to Income					23		23
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,170		1,460
Gross Additions					430		580
Gross Reductions					0		0
Ending balance		2,600		2,040	2,600		2,040
Fair value		$ 2,600		$ 2,040	$ 2,600		$ 2,040	$ 2,170
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		9.00%	[12],[15],[16]	9.00%	9.00%	[12],[15],[16]	9.00%	9.00%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					2		6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[14]	0
Gross Additions					0		360
Gross Reductions					0		360
Ending balance		$ 0	[12],[15],[16]	$ 0	0	[12],[15],[16]	0
Fair value		$ 0	[12],[15],[16]	$ 0	$ 0	[12],[15],[16]	$ 0	$ 0	[14]
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.48%	[12],[15]	11.63%	14.48%	[12],[15]	11.63%	13.13%	[14]
Spread		9.00%	[12],[15]	9.00%	9.00%	[12],[15]	9.00%	9.00%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					33		115
Amount of Interest, Fees or Dividends Credited to Income					406		321
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,731	[14]	2,216
Gross Additions					663		1,610
Gross Reductions					0		97
Ending balance		$ 4,394	[12],[15]	$ 3,729	4,394	[12],[15]	3,729
Fair value		4,394	[12],[15]	3,729	4,394	[12],[15]	3,729	$ 3,731	[14]
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					750		(450)
Amount of Interest, Fees or Dividends Credited to Income					698		334
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,728	[17]	6,030
Gross Additions					752		0
Gross Reductions					0		450
Ending balance		6,480	[18]	5,580	6,480	[18]	5,580
Fair value		6,480	[18]	5,580	6,480	[18]	5,580	5,728	[17]
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					65		(27)
Amount of Interest, Fees or Dividends Credited to Income					17		14
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					678	[17],[26]	385
Gross Additions					65		113
Gross Reductions					0		27
Ending balance		743	[18],[27]	471	743	[18],[27]	471
Fair value		$ 743	[18],[27]	$ 471	$ 743	[18],[27]	$ 471	$ 678	[17],[26]
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[12],[15],[16]	6.00%	6.00%	[12],[15],[16]	6.00%	6.00%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					35		0
Amount of Interest, Fees or Dividends Credited to Income					5		2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[14]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[12],[15],[16]	$ 0	0	[12],[15],[16]	0
Fair value		$ 0	[12],[15],[16]	$ 0	$ 0	[12],[15],[16]	$ 0	$ 0	[14]
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.49%	[12],[15]	10.63%	13.49%	[12],[15]	10.63%	12.13%	[14]
Spread		8.00%	[12],[15]	8.00%	8.00%	[12],[15]	8.00%	8.00%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(4)		(32)
Amount of Interest, Fees or Dividends Credited to Income					416		347
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,236	[14]	4,454
Gross Additions					4		32
Gross Reductions					138		120
Ending balance		$ 4,102	[12],[15]	$ 4,366	4,102	[12],[15]	4,366
Fair value		$ 4,102	[12],[15]	4,366	$ 4,102	[12],[15]	4,366	$ 4,236	[14]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.58%	[11],[12],[15],[36]		12.58%	[11],[12],[15],[36]		10.72%	[13],[14],[37]
Spread		7.00%	[11],[12],[15],[36]		7.00%	[11],[12],[15],[36]		6.25%	[13],[14],[37]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14],[37]				$ 169
Ending balance	[11],[12],[15],[36]	$ 276			276
Fair value		$ 276	[11],[12],[15],[36]		$ 276	[11],[12],[15],[36]		$ 169	[13],[14],[37]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.53%	[11],[12],[15]		12.53%	[11],[12],[15]		10.71%	[13],[14],[38]
Spread		7.00%	[11],[12],[15]		7.00%	[11],[12],[15]		6.25%	[13],[14],[38]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14],[38]				$ 3,539
Ending balance	[11],[12],[15]	$ 3,260			3,260
Fair value		$ 3,260	[11],[12],[15]		$ 3,260	[11],[12],[15]		$ 3,539	[13],[14],[38]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	12.53%			12.53%
Spread	[11],[12],[15]	7.00%			7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 181			$ 181
Fair value	[11],[12],[15]	$ 181			$ 181
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	12.53%			12.53%
Spread	[11],[12],[15]	7.00%			7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 436			$ 436
Fair value	[11],[12],[15]	436			436
Investment, Identifier [Axis]: Charps, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					170		(200)
Amount of Interest, Fees or Dividends Credited to Income					167		106
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,330		3,500
Gross Additions					170		0
Gross Reductions					0		200
Ending balance		3,500	[18]	3,300	3,500	[18]	3,300
Fair value		3,500	[18]	3,300	3,500	[18]	3,300	3,330
Investment, Identifier [Axis]: Charps, LLC, Secured Debt
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							0
Gross Reductions							0
Ending balance				0			0
Fair value				0			0
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(660)		(190)
Amount of Interest, Fees or Dividends Credited to Income					69		149
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,060	[17]	2,560
Gross Additions					0		0
Gross Reductions					660		190
Ending balance		1,400	[18]	2,370	1,400	[18]	2,370
Fair value		1,400	[18]	2,370	1,400	[18]	2,370	2,060	[17]
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					55		20
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					152	[26]	133
Gross Additions					130		19
Gross Reductions					0		0
Ending balance		282	[27]	152	282	[27]	152
Fair value		$ 282	[27]	$ 152	$ 282	[27]	$ 152	$ 152	[26]
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.50%		12.13%	11.50%		12.13%	13.23%	[14]
Spread				9.50%			9.50%	9.00%	[14]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							217
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 2,620	[14]	2,620
Gross Additions							0
Gross Reductions							0
Ending balance		$ 2,163		$ 2,620	2,163		2,620
Fair value		2,163		$ 2,620	2,163		$ 2,620	$ 2,620	[14]
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		0			0
Fair value		$ 0			$ 0			$ 0
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%		10.00%	10.00%		10.00%	10.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							20
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 260		268
Gross Additions							0
Gross Reductions							6
Ending balance		$ 253		$ 262	253		262
Fair value		$ 253		262	$ 253		262	$ 260
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		11.50%			11.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(37)
Amount of Interest, Fees or Dividends Credited to Income					220
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,620
Gross Additions					0
Gross Reductions					457
Ending balance		$ 2,163			2,163
Fair value		$ 2,163			$ 2,163			2,620
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.00%			10.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					20
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					260
Gross Additions					0
Gross Reductions					7
Ending balance		$ 253			253
Fair value		$ 253			$ 253			$ 260
Investment, Identifier [Axis]: Clarius BIGS, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.00%	[11],[22],[23]		15.00%	[11],[22],[23]		15.00%	[13],[24],[25]
PIK Rate		15.00%	[11],[22],[23]		15.00%	[11],[22],[23]		15.00%	[13],[24],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[24],[25]				$ 19
Ending balance	[11],[22],[23]	$ 19			19
Fair value		19	[11],[22],[23]		19	[11],[22],[23]		$ 19	[13],[24],[25]
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[17]				6,160
Ending balance	[18]	4,000			4,000
Fair value		$ 4,000	[18]		$ 4,000	[18]		$ 6,160	[17]
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.50%	[12],[15]		11.50%	[12],[15]		9.75%	[14]
Spread		6.00%	[12],[15]		6.00%	[12],[15]		6.00%	[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				$ 1,140
Ending balance	[12],[15]	$ 1,140			1,140
Fair value		$ 1,140	[12],[15]		$ 1,140	[12],[15]		$ 1,140	[14]
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		8.00%			8.00%			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 4,819
Ending balance		$ 4,819			4,819
Fair value		4,819			4,819			$ 4,819
Investment, Identifier [Axis]: Cody Pools, Inc., Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					2,740		2,390
Amount of Interest, Fees or Dividends Credited to Income					653		928
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					14,550	[17],[26]	11,910
Gross Additions					2,740		2,390
Gross Reductions					0		0
Ending balance		17,290	[18],[27]	14,300	17,290	[18],[27]	14,300
Fair value		17,290	[18],[27]	$ 14,300	17,290	[18],[27]	$ 14,300	$ 14,550	[17],[26]
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14]							15.38%
Spread				10.50%			10.50%	10.50%	[14]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							10
Amount of Interest, Fees or Dividends Credited to Income							13
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					273	[14]	(6)
Gross Additions							641
Gross Reductions							635
Ending balance		0	[16]	$ 0	0	[16]	0
Fair value		0	[16]	$ 0	0	[16]	$ 0	$ 273	[14]
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					2
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		0			0
Fair value		$ 0			$ 0			$ 0
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%		13.63%	12.50%		13.63%	15.38%	[14]
Spread				10.50%			10.50%	10.50%	[14]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(22)
Amount of Interest, Fees or Dividends Credited to Income							694
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 6,882	[14]	7,187
Gross Additions							22
Gross Reductions							251
Ending balance		$ 7,377		$ 6,958	7,377		6,958
Fair value		$ 7,377		6,958	$ 7,377		6,958	$ 6,882	[14]
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		12.50%			12.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					25
Amount of Interest, Fees or Dividends Credited to Income					330
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					7,872
Gross Reductions					495
Ending balance		$ 7,377			7,377
Fair value		$ 7,377			$ 7,377			0
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Spread		10.50%			10.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(11)
Amount of Interest, Fees or Dividends Credited to Income					26
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					273
Gross Additions					14
Gross Reductions					287
Ending balance		$ 0			0
Fair value		$ 0			$ 0			273
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Spread		10.50%			10.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(96)
Amount of Interest, Fees or Dividends Credited to Income					500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,882
Gross Additions					0
Gross Reductions					6,882
Ending balance		$ 0			0
Fair value		0			0			6,882
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							20
Amount of Interest, Fees or Dividends Credited to Income							317
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,290	[17]	2,280
Gross Additions							20
Gross Reductions							0
Ending balance				2,300			2,300
Fair value				2,300			2,300	2,290	[17]
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					360
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					600
Gross Reductions					0
Ending balance		600			600
Fair value		600			600			0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(370)
Amount of Interest, Fees or Dividends Credited to Income					(295)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,290
Gross Additions					0
Gross Reductions					370
Ending balance		1,920			1,920
Fair value		1,920			1,920			2,290
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					12		12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					400		400
Gross Reductions					400		400
Ending balance		0	[16]	0	0	[16]	0
Fair value		$ 0	[16]	$ 0	$ 0	[16]	$ 0	$ 0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%		12.00%	12.00%		12.00%	12.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(77)		0
Amount of Interest, Fees or Dividends Credited to Income					542		573
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,729		6,007
Gross Additions					26		28
Gross Reductions					313		236
Ending balance		$ 5,442		$ 5,799	5,442		5,799
Fair value		$ 5,442		5,799	$ 5,442		5,799	$ 5,729
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.61%	[11],[12],[15],[39]		13.61%	[11],[12],[15],[39]		12.56%	[13],[14],[40]
Spread		8.00%	[11],[12],[15],[39]		8.00%	[11],[12],[15],[39]		8.00%	[13],[14],[40]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14],[40]				$ 3,851
Ending balance	[11],[12],[15],[39]	$ 4,003			4,003
Fair value		$ 4,003	[11],[12],[15],[39]		$ 4,003	[11],[12],[15],[39]		$ 3,851	[13],[14],[40]
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.52%	[11],[12],[15]		13.52%	[11],[12],[15]		12.56%	[13],[14]
Spread		8.00%	[11],[12],[15]		8.00%	[11],[12],[15]		8.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 14,421
Ending balance	[11],[12],[15]	$ 14,827			14,827
Fair value		14,827	[11],[12],[15]		14,827	[11],[12],[15]		$ 14,421	[13],[14]
Investment, Identifier [Axis]: Construction Supply Investments, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[17]				21,165
Ending balance	[11]	23,135			23,135
Fair value		23,135	[11]		23,135	[11]		21,165	[13],[17]
Investment, Identifier [Axis]: Copper Trail Fund Investments, LP Interests (CTMH, LP)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					38		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					588	[30],[31],[32]	710
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		588	[18],[29],[33],[34]	710	588	[18],[29],[33],[34]	710
Fair value		588	[18],[29],[33],[34]	710	588	[18],[29],[33],[34]	710	588	[30],[31],[32]
Investment, Identifier [Axis]: DMA Industries, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,820
Ending balance		1,820			1,820
Fair value		$ 1,820			$ 1,820			$ 1,820
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 5,300
Ending balance		$ 5,000			5,000
Fair value		$ 5,000			$ 5,000			$ 5,300
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class A Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		8.00%	[11]		8.00%	[11]		8.00%	[13]
PIK Rate		8.00%	[11]		8.00%	[11]		8.00%	[13]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				$ 380
Ending balance	[11]	$ 260			260
Fair value		$ 260	[11]		$ 260	[11]		$ 380	[13]
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class AA Preferred Member Units (non-voting)
Schedule of Investments [Line Items]
Total Rate		10.00%	[11],[18]		10.00%	[11],[18]		10.00%	[13],[17]
PIK Rate		10.00%	[11],[18]		10.00%	[11],[18]		10.00%	[13],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[17]				$ 1,161
Ending balance	[11],[18]	$ 1,251			1,251
Fair value		1,251	[11],[18]		1,251	[11],[18]		$ 1,161	[13],[17]
Investment, Identifier [Axis]: DTE Enterprises, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[13],[14]							7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				(1)
Fair value	[13],[14]							$ (1)
Investment, Identifier [Axis]: DTE Enterprises, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[13],[14]							12.24%
Spread	[13],[14]							7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				5,978
Fair value	[13],[14]							$ 5,978
Investment, Identifier [Axis]: Dalton US Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				14
Ending balance	[11]	14			14
Fair value		$ 14	[11]		$ 14	[11]		$ 14	[13]
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.92%	[11],[12],[15],[41]		13.92%	[11],[12],[15],[41]		11.90%	[13],[14]
Spread		8.50%	[11],[12],[15],[41]		8.50%	[11],[12],[15],[41]		8.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 78
Ending balance	[11],[12],[15],[41]	$ 58			58
Fair value		$ 58	[11],[12],[15],[41]		$ 58	[11],[12],[15],[41]		$ 78	[13],[14]
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	14.18%			14.18%
Spread		8.50%	[11],[12],[15]		8.50%	[11],[12],[15]		8.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (5)
Ending balance	[11],[12],[15]	$ 290			290
Fair value		$ 290	[11],[12],[15]		$ 290	[11],[12],[15]		$ (5)	[13],[14]
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.92%	[11],[12],[15]		13.92%	[11],[12],[15]		12.56%	[13],[14]
Spread		8.50%	[11],[12],[15]		8.50%	[11],[12],[15]		8.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 1,020
Ending balance	[11],[12],[15]	$ 1,030			1,030
Fair value		1,030	[11],[12],[15]		1,030	[11],[12],[15]		$ 1,020	[13],[14]
Investment, Identifier [Axis]: Datacom, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(270)		10
Amount of Interest, Fees or Dividends Credited to Income					0		8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					300	[17]	290
Gross Additions					0		10
Gross Reductions					270		0
Ending balance		30	[18]	300	30	[18]	300
Fair value		$ 30	[18]	$ 300	$ 30	[18]	$ 300	$ 300	[17]
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		7.50%		7.50%	7.50%		7.50%	7.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					3		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					25		0
Gross Additions					89		25
Gross Reductions					55		0
Ending balance		$ 59		$ 25	59		25
Fair value		$ 59		$ 25	$ 59		$ 25	$ 25
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%		7.50%	10.00%		7.50%	7.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(14)		14
Amount of Interest, Fees or Dividends Credited to Income					89		73
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					865		852
Gross Additions					17		32
Gross Reductions					36		23
Ending balance		$ 846		$ 861	846		861
Fair value		846		861	846		861	$ 865
Investment, Identifier [Axis]: Digital Products Holdings LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					38		38
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,459	[17]	2,459
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		2,459	[18]	2,459	2,459	[18]	2,459
Fair value		$ 2,459	[18]	$ 2,459	$ 2,459	[18]	$ 2,459	$ 2,459	[17]
Investment, Identifier [Axis]: Digital Products Holdings LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.38%	[12],[15]	12.63%	15.38%	[12],[15]	12.63%	14.13%	[14]
Spread		10.00%	[12],[15]	10.00%	10.00%	[12],[15]	10.00%	10.00%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(17)		0
Amount of Interest, Fees or Dividends Credited to Income					436		368
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,878	[14]	4,186
Gross Additions					0		17
Gross Reductions					209		248
Ending balance		$ 3,669	[12],[15]	$ 3,955	3,669	[12],[15]	3,955
Fair value		3,669	[12],[15]	3,955	3,669	[12],[15]	3,955	$ 3,878	[14]
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(220)		970
Amount of Interest, Fees or Dividends Credited to Income					43		257
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,558	[17]	4,590
Gross Additions					0		970
Gross Reductions					218		0
Ending balance		5,340	[18]	5,560	5,340	[18]	5,560
Fair value		$ 5,340	[18]	$ 5,560	$ 5,340	[18]	$ 5,560	$ 5,558	[17]
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		14.00%		13.63%	14.00%		13.63%
Spread				11.00%			11.00%	11.00%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(1)		5
Amount of Interest, Fees or Dividends Credited to Income					4		19
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[14]	(7)
Gross Additions					226		758
Gross Reductions					1		151
Ending balance		$ 225		$ 600	225		600
Fair value		$ 225		$ 600	$ 225		$ 600	$ 0	[14]
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.00%		13.63%	14.00%		13.63%	15.13%	[14]
Spread				11.00%			11.00%	11.00%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(15)		(21)
Amount of Interest, Fees or Dividends Credited to Income					550		459
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,352	[14]	4,705
Gross Additions					15		21
Gross Reductions					282		232
Ending balance		$ 5,085		$ 4,494	5,085		4,494
Fair value		5,085		4,494	5,085		4,494	$ 5,352	[14]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				0
Ending balance	[11]	0			0
Fair value		0	[11]		0	[11]		0	[13]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				128
Ending balance	[11]	128			128
Fair value		128	[11]		128	[11]		128	[13]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				0
Ending balance	[11]	0			0
Fair value		$ 0	[11]		$ 0	[11]		$ 0	[13]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		9.91%	[11],[12],[15]		9.91%	[11],[12],[15]		9.18%	[13],[14]
Spread		4.50%	[11],[12],[15]		4.50%	[11],[12],[15]		4.50%	[13],[14]
PIK Rate		9.91%	[11],[12],[15]		9.91%	[11],[12],[15]		9.18%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 1,717
Ending balance	[11],[12],[15]	$ 1,846			1,846
Fair value		$ 1,846	[11],[12],[15]		$ 1,846	[11],[12],[15]		$ 1,717	[13],[14]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.91%	[11],[12],[15]		11.91%	[11],[12],[15]		11.18%	[13],[14]
Spread		6.50%	[11],[12],[15]		6.50%	[11],[12],[15]		6.50%	[13],[14]
PIK Rate		11.91%	[11],[12],[15]		11.91%	[11],[12],[15]		11.18%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 1,642
Ending balance	[11],[12],[15]	$ 1,561			1,561
Fair value		1,561	[11],[12],[15]		1,561	[11],[12],[15]		$ 1,642	[13],[14]
Investment, Identifier [Axis]: EPIC Y-Grade Services, LP, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7],[14]							10.70%
Spread	[7],[14]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14]				6,156
Fair value	[7],[14]							$ 6,156
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					497
Ending balance		390			390
Fair value		390			390			497
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[26]				102
Ending balance	[27]	109			109
Fair value		$ 109	[27]		$ 109	[27]		$ 102	[26]
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[12],[15],[16]		6.00%	[12],[15],[16]		6.00%	[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				$ (1)
Ending balance	[12],[15],[16]	$ 0			0
Fair value		$ 0	[12],[15],[16]		$ 0	[12],[15],[16]		$ (1)	[14]
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 1,192
Ending balance		$ 1,198			1,198
Fair value		$ 1,198			$ 1,198			$ 1,192
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		9.00%			9.00%			9.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 411
Ending balance		$ 409			409
Fair value		$ 409			$ 409			$ 411
Investment, Identifier [Axis]: Emerald Technologies Acquisition Co, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.82%	[8],[12],[15]		11.82%	[8],[12],[15]		10.67%	[7],[14]
Spread		6.25%	[8],[12],[15]		6.25%	[8],[12],[15]		6.25%	[7],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14]				$ 2,328
Ending balance	[8],[12],[15]	$ 2,310			2,310
Fair value		$ 2,310	[8],[12],[15]		$ 2,310	[8],[12],[15]		$ 2,328	[7],[14]
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[13],[14]							11.68%
Spread		5.50%	[11],[12],[16]		5.50%	[11],[12],[16]		6.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 41
Ending balance	[11],[12],[16]	$ 0			0
Fair value		$ 0	[11],[12],[16]		$ 0	[11],[12],[16]		$ 41	[13],[14]
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.98%	[11],[12],[15]		11.98%	[11],[12],[15]		10.92%	[13],[14]
Spread		6.50%	[11],[12],[15]		6.50%	[11],[12],[15]		6.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 5,159
Ending balance	[11],[12],[15]	$ 5,121			5,121
Fair value		5,121	[11],[12],[15]		5,121	[11],[12],[15]		$ 5,159	[13],[14]
Investment, Identifier [Axis]: Escalent, Inc., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	174			174
Fair value	[11]	$ 174			$ 174
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[15],[16]	8.00%			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15],[16]	$ (10)			$ (10)
Fair value	[11],[12],[15],[16]	$ (10)			$ (10)
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	13.49%			13.49%
Spread	[11],[12],[15]	8.00%			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 6,890			$ 6,890
Fair value	[11],[12],[15]	$ 6,890			$ 6,890
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.65%	[11],[12],[15],[27]		12.65%	[11],[12],[15],[27]		10.67%	[13],[14],[26]
Spread		7.00%	[11],[12],[15],[27]		7.00%	[11],[12],[15],[27]		7.00%	[13],[14],[26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14],[26]				$ 292
Ending balance	[11],[12],[15],[27]	$ 308			308
Fair value		$ 308	[11],[12],[15],[27]		$ 308	[11],[12],[15],[27]		$ 292	[13],[14],[26]
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.65%	[11],[12],[15],[27]		12.65%	[11],[12],[15],[27]		10.67%	[13],[14],[26]
Spread		7.00%	[11],[12],[15],[27]		7.00%	[11],[12],[15],[27]		7.00%	[13],[14],[26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14],[26]				$ 3,507
Ending balance	[11],[12],[15],[27]	$ 3,692			3,692
Fair value		$ 3,692	[11],[12],[15],[27]		$ 3,692	[11],[12],[15],[27]		$ 3,507	[13],[14],[26]
Investment, Identifier [Axis]: Fidelity Government Portfolio Class III Fund
Schedule of Investments [Line Items]
Total Rate		4.98%			4.98%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[42]	$ 1,816			$ 1,816
Fair value	[42]	$ 1,816			$ 1,816
Investment, Identifier [Axis]: First American Treasury Obligations Fund Class Z
Schedule of Investments [Line Items]
Total Rate		5.21%			5.21%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[43]	$ 17,773			$ 17,773
Fair value	[43]	17,773			17,773
Investment, Identifier [Axis]: Flame King Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					2,570		860
Amount of Interest, Fees or Dividends Credited to Income					619		227
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,400	[17]	2,600
Gross Additions					2,570		860
Gross Reductions					0		0
Ending balance		6,970	[18]	3,460	6,970	[18]	3,460
Fair value		$ 6,970	[18]	$ 3,460	$ 6,970	[18]	$ 3,460	$ 4,400	[17]
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				9.25%			9.25%	10.75%	[14]
Spread		6.50%		6.50%	6.50%		6.50%	6.50%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(15)		16
Amount of Interest, Fees or Dividends Credited to Income					121		116
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,900	[14]	1,581
Gross Additions					15		319
Gross Reductions					1,915		0
Ending balance		$ 0		$ 1,900	0		1,900
Fair value		$ 0		$ 1,900	$ 0		$ 1,900	$ 1,900	[14]
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				13.75%			13.75%	13.25%	[14]
Spread		9.00%		11.00%	9.00%		11.00%	9.00%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(123)		131
Amount of Interest, Fees or Dividends Credited to Income					478		525
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,300	[14]	5,145
Gross Additions					123		155
Gross Reductions					5,423		0
Ending balance		$ 0		$ 5,300	0		5,300
Fair value		$ 0		5,300	$ 0		5,300	$ 5,300	[14]
Investment, Identifier [Axis]: Flip Electronics LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.90%	[11],[15]		12.90%	[11],[15]		11.21%	[13],[14]
Spread		7.50%	[11],[15]		7.50%	[11],[15]		7.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 818
Ending balance	[11],[15]	$ 1,091			1,091
Fair value		$ 1,091	[11],[15]		$ 1,091	[11],[15]		$ 818	[13],[14]
Investment, Identifier [Axis]: Flip Electronics LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.01%	[11],[15]		13.01%	[11],[15]		12.19%	[13],[14]
Spread		7.50%	[11],[15]		7.50%	[11],[15]		7.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 12,327
Ending balance	[11],[15]	$ 6,873			6,873
Fair value		$ 6,873	[11],[15]		$ 6,873	[11],[15]		$ 12,327	[13],[14]
Investment, Identifier [Axis]: Flip Electronics LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[15]	12.98%			12.98%
Spread	[11],[15]	7.50%			7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[15]	$ 5,455			$ 5,455
Fair value	[11],[15]	5,455			5,455
Investment, Identifier [Axis]: Freeport Financial Funds, LP Interests (Freeport First Lien Loan Fund III LP)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(57)
Amount of Interest, Fees or Dividends Credited to Income					446		288
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,848	[17],[30],[31],[32]	7,231
Gross Additions					0		0
Gross Reductions					975		1,056
Ending balance		4,873	[18],[29],[33],[34]	6,175	4,873	[18],[29],[33],[34]	6,175
Fair value		4,873	[18],[29],[33],[34]	6,175	4,873	[18],[29],[33],[34]	6,175	5,848	[17],[30],[31],[32]
Investment, Identifier [Axis]: GFG Group, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					810		40
Amount of Interest, Fees or Dividends Credited to Income					82		104
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,790		1,750
Gross Additions					810		40
Gross Reductions					0		0
Ending balance		2,600	[18]	1,790	2,600	[18]	1,790
Fair value		$ 2,600	[18]	$ 1,790	$ 2,600	[18]	$ 1,790	1,790
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		8.00%		9.00%	8.00%		9.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(16)		(19)
Amount of Interest, Fees or Dividends Credited to Income					201		255
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,836		3,136
Gross Additions					16		19
Gross Reductions					216		219
Ending balance		$ 2,636		$ 2,936	2,636		2,936
Fair value		2,636		2,936	2,636		2,936	2,836
Investment, Identifier [Axis]: GFG Group, LLC., Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[17]				1,790
Fair value	[17]							$ 1,790
Investment, Identifier [Axis]: GFG Group, LLC., Secured Debt
Schedule of Investments [Line Items]
Total Rate								9.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,836
Fair value								$ 2,836
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					62		1,230
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					21,890	[17]	22,750
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		21,890		22,750	21,890		22,750
Fair value		$ 21,890		$ 22,750	$ 21,890		$ 22,750	$ 21,890	[17]
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate				10.56%			10.56%
Spread				8.00%			8.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(20)
Amount of Interest, Fees or Dividends Credited to Income							1,365
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							19,152
Gross Additions							812
Gross Reductions							20
Ending balance				$ 19,944			19,944
Fair value				19,944			19,944
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.48%	[15]		11.48%	[15]		10.12%
Spread		6.00%	[15]		6.00%	[15]		6.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					59
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					330
Gross Additions					508
Gross Reductions					0
Ending balance	[15]	$ 838			838
Fair value		$ 838	[15]		$ 838	[15]		$ 330
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.48%	[15]		13.48%	[15]		12.12%
Spread		8.00%	[15]		8.00%	[15]		8.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(37)
Amount of Interest, Fees or Dividends Credited to Income					1,998
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					19,943
Gross Additions					38
Gross Reductions					37
Ending balance	[15]	$ 19,944			19,944
Fair value		19,944	[15]		19,944	[15]		$ 19,943
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					7,680		(810)
Amount of Interest, Fees or Dividends Credited to Income					1,240		179
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					12,720	[17]	12,430
Gross Additions					7,680		0
Gross Reductions					0		810
Ending balance		20,400	[18]	11,620	20,400	[18]	11,620
Fair value		$ 20,400	[18]	$ 11,620	$ 20,400	[18]	$ 11,620	$ 12,720	[17]
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.50%	[12],[15],[16],[20]	8.00%	7.50%	[12],[15],[16],[20]	8.00%	8.50%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1		1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[14]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[12],[15],[16],[20]	$ 0	0	[12],[15],[16],[20]	0
Fair value		$ 0	[12],[15],[16],[20]	$ 0	$ 0	[12],[15],[16],[20]	$ 0	$ 0	[14]
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.50%	[12],[15],[20]	10.63%	10.50%	[12],[15],[20]	10.63%	11.50%	[14]
Spread		7.50%	[12],[15],[20]	8.00%	7.50%	[12],[15],[20]	8.00%	8.50%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(68)		8
Amount of Interest, Fees or Dividends Credited to Income					1,338		422
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					16,020	[14]	5,400
Gross Additions					68		620
Gross Reductions					1,968		0
Ending balance		$ 14,120	[12],[15],[20]	$ 6,020	14,120	[12],[15],[20]	6,020
Fair value		14,120	[12],[15],[20]	6,020	14,120	[12],[15],[20]	6,020	$ 16,020	[14]
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		0			0
Fair value		0			0			0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							0
Gross Reductions							0
Ending balance				0			0
Fair value				0			0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(420)
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							1,400
Gross Reductions							420
Ending balance				980			980
Fair value				$ 980			$ 980
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(250)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					950
Gross Additions					0
Gross Reductions					250
Ending balance		700			700
Fair value		$ 700			$ 700			$ 950
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		9.50%	[12],[15],[16]	9.50%	9.50%	[12],[15],[16]	9.50%	9.50%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[14]	64
Gross Additions					0		0
Gross Reductions					0		64
Ending balance		$ 0	[12],[15],[16]	$ 0	0	[12],[15],[16]	0
Fair value		$ 0	[12],[15],[16]	0	$ 0	[12],[15],[16]	0	$ 0	[14]
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%			12.50%			12.50%
Amount of Realized Gain/(Loss)					$ 0		(1,455)
Amount of Unrealized Gain/(Loss)					0		962
Amount of Interest, Fees or Dividends Credited to Income					57		126
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					571		2,429
Gross Additions					0		0
Gross Reductions					0		2,429
Ending balance		$ 571		0	571		0
Fair value		$ 571		$ 0	$ 571		$ 0	$ 571
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate				12.50%			12.50%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(29)
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							600
Gross Reductions							29
Ending balance				$ 571			571
Fair value				571			571
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		14.34%	[11],[12],[15]		14.34%	[11],[12],[15]		14.34%	[13],[14]
Spread		9.50%	[11],[12],[15]		9.50%	[11],[12],[15]		9.50%	[13],[14]
PIK Rate		14.34%	[11],[12],[15]		14.34%	[11],[12],[15]		2.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 175
Ending balance	[11],[12],[15]	$ 182			182
Fair value		$ 182	[11],[12],[15]		$ 182	[11],[12],[15]		$ 175	[13],[14]
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.34%	[11],[12],[15]		14.34%	[11],[12],[15]		14.34%	[13],[14]
Spread		9.50%	[11],[12],[15]		9.50%	[11],[12],[15]		9.50%	[13],[14]
PIK Rate		14.34%	[11],[12],[15]		14.34%	[11],[12],[15]		2.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 1,731
Ending balance	[11],[12],[15]	$ 1,804			1,804
Fair value		$ 1,804	[11],[12],[15]		$ 1,804	[11],[12],[15]		$ 1,731	[13],[14]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.50%	[11],[12],[15],[16]		6.50%	[11],[12],[15],[16]		6.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (18)
Ending balance	[11],[12],[15],[16]	$ (15)			(15)
Fair value		$ (15)	[11],[12],[15],[16]		$ (15)	[11],[12],[15],[16]		$ (18)	[13],[14]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread		6.50%	[11],[12],[15],[16]		6.50%	[11],[12],[15],[16]		6.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (18)
Ending balance	[11],[12],[15],[16]	$ (15)			(15)
Fair value		$ (15)	[11],[12],[15],[16]		$ (15)	[11],[12],[15],[16]		$ (18)	[13],[14]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.82%	[11],[12],[15]		11.82%	[11],[12],[15]		10.62%	[13],[14]
Spread		6.50%	[11],[12],[15]		6.50%	[11],[12],[15]		6.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 4,975
Ending balance	[11],[12],[15]	$ 4,950			4,950
Fair value		4,950	[11],[12],[15]		4,950	[11],[12],[15]		$ 4,975	[13],[14]
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 3, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		779
Amount of Unrealized Gain/(Loss)					283		254
Amount of Interest, Fees or Dividends Credited to Income					0		(81)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,331		4,712
Gross Additions					283		587
Gross Reductions					508		968
Ending balance		4,106		4,331	4,106		4,331
Fair value		4,106		4,331	4,106		4,331	4,331
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 MH, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					2,223		0
Amount of Unrealized Gain/(Loss)					(1,106)		1,979
Amount of Interest, Fees or Dividends Credited to Income					141		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,552	[30],[31],[32]	3,971
Gross Additions					2,796		3,171
Gross Reductions					4,452		0
Ending balance		5,896	[18],[29],[33],[34]	7,142	5,896	[18],[29],[33],[34]	7,142
Fair value		5,896	[18],[29],[33],[34]	7,142	5,896	[18],[29],[33],[34]	7,142	7,552	[30],[31],[32]
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (HPEP 3, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[30],[31],[32]				4,331
Ending balance	[18],[29],[33],[34]	4,106			4,106
Fair value		4,106	[18],[29],[33],[34]		4,106	[18],[29],[33],[34]		4,331	[30],[31],[32]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[17]				4,370
Ending balance	[18]	4,370			4,370
Fair value		4,370	[18]		4,370	[18]		4,370	[17]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[26]				230
Ending balance	[27]	230			230
Fair value		$ 230	[27]		$ 230	[27]		$ 230	[26]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.65%	[12],[15]		11.65%	[12],[15]		10.13%	[14]
Spread		6.00%	[12],[15]		6.00%	[12],[15]		6.00%	[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				$ 796
Ending balance	[12],[15]	$ 450			450
Fair value		$ 450	[12],[15]		$ 450	[12],[15]		$ 796	[14]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%			12.50%			9.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 8,200
Ending balance		$ 9,744			9,744
Fair value		$ 9,744			$ 9,744			$ 8,200
Investment, Identifier [Axis]: Hybrid Promotions, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.76%	[11],[12],[15]		15.76%	[11],[12],[15]		12.07%	[13]
Spread		8.25%	[11],[12],[15]		8.25%	[11],[12],[15]		8.25%	[13]
PIK Rate	[11],[12],[15]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				$ 6,826
Ending balance	[11],[12],[15]	$ 6,549			6,549
Fair value		6,549	[11],[12],[15]		6,549	[11],[12],[15]		$ 6,826	[13]
Investment, Identifier [Axis]: IG Investor, LLC, Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					3,774
Gross Reductions					174
Ending balance		3,600			3,600
Fair value		3,600			3,600			0
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					172
Gross Reductions					200
Ending balance	[16]	(28)			(28)
Fair value		$ (28)	[16]		$ (28)	[16]		0
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					366
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					9,162
Gross Reductions					0
Ending balance		$ 9,162			9,162
Fair value		$ 9,162			$ 9,162			$ 0
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[14],[44]							10.17%
Spread		5.75%	[8],[12],[15],[16]		5.75%	[8],[12],[15],[16]		5.75%	[7],[14],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14],[44]				$ 465
Ending balance	[8],[12],[15],[16]	$ 0			0
Fair value		$ 0	[8],[12],[15],[16]		$ 0	[8],[12],[15],[16]		$ 465	[7],[14],[44]
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.17%	[8],[12],[15]		11.17%	[8],[12],[15]		10.17%	[7],[14]
Spread		5.75%	[8],[12],[15]		5.75%	[8],[12],[15]		5.75%	[7],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14]				$ 8,291
Ending balance	[8],[12],[15]	$ 6,282			6,282
Fair value		$ 6,282	[8],[12],[15]		$ 6,282	[8],[12],[15]		$ 8,291	[7],[14]
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[8],[12],[15]	11.17%			11.17%
Spread	[8],[12],[15]	5.75%			5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[12],[15]	$ 1,947			$ 1,947
Fair value	[8],[12],[15]	$ 1,947			$ 1,947
Investment, Identifier [Axis]: INW Manufacturing, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.40%	[8],[12],[15]		11.40%	[8],[12],[15]		10.48%	[7],[14]
Spread		5.75%	[8],[12],[15]		5.75%	[8],[12],[15]		5.75%	[7],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14]				$ 5,972
Ending balance	[8],[12],[15]	$ 5,310			5,310
Fair value		$ 5,310	[8],[12],[15]		$ 5,310	[8],[12],[15]		$ 5,972	[7],[14]
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[15],[16]	9.00%			9.00%
PIK Rate	[15],[16]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[15],[16]	$ (5)			$ (5)
Fair value	[15],[16]	$ (5)			$ (5)
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[15],[16]	9.00%			9.00%
PIK Rate	[15],[16]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[15],[16]	$ (2)			$ (2)
Fair value	[15],[16]	$ (2)			$ (2)
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[15]	15.40%			15.40%
Spread	[15]	8.00%			8.00%
PIK Rate	[15]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[15]	$ 819			$ 819
Fair value	[15]	$ 819			$ 819
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[15]	17.40%			17.40%
Spread	[15]	10.00%			10.00%
PIK Rate	[15]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[15]	$ 819			$ 819
Fair value	[15]	819			819
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[10]	523			523
Fair value	[10]	523			523
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	580			580
Fair value	[11]	$ 580			$ 580
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	12.43%			12.43%
Spread	[11],[12],[15]	7.00%			7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 978			$ 978
Fair value	[11],[12],[15]	$ 978			$ 978
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	12.45%			12.45%
Spread	[11],[12],[15]	7.00%			7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 10,331			$ 10,331
Fair value	[11],[12],[15]	$ 10,331			$ 10,331
Investment, Identifier [Axis]: Implus Footcare, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14.30%	[11],[12],[15]		14.30%	[11],[12],[15]		13.98%	[13],[14]
Spread		7.75%	[11],[12],[15]		7.75%	[11],[12],[15]		7.75%	[13],[14]
PIK Rate		1.00%	[11],[12],[15]		1.00%	[11],[12],[15]		1.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 15,961
Ending balance	[11],[12],[15]	$ 15,659			15,659
Fair value		15,659	[11],[12],[15]		15,659	[11],[12],[15]		$ 15,961	[13],[14]
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(280)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					6,540
Gross Reductions					280
Ending balance	[11]	6,260			6,260
Fair value		6,260	[11]		6,260	[11]		0
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				0
Fair value	[13]							$ 0
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Preferred Stock (non-voting) 1
Schedule of Investments [Line Items]
Total Rate	[13]							6.00%
PIK Rate	[13]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				0
Fair value	[13]							$ 0
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Preferred Stock (non-voting) 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				0
Fair value	[13]							$ 0
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[13],[24]							6.00%
PIK Rate	[13],[24]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[24]				4,515
Fair value	[13],[24]							$ 4,515
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[13]							14.42%
Spread	[13]							10.00%
PIK Rate	[13]							14.42%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				459
Fair value	[13]							$ 459
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				0
Fair value	[13]							0
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[26]				1,400
Ending balance	[11],[27]	1,440			1,440
Fair value		$ 1,440	[11],[27]		$ 1,440	[11],[27]		$ 1,400	[13],[26]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Total Rate		10.00%	[11],[18],[27]		10.00%	[11],[18],[27]		10.00%	[13],[17],[26]
PIK Rate		10.00%	[11],[18],[27]		10.00%	[11],[18],[27]		10.00%	[13],[17],[26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[17],[26]				$ 338
Ending balance	[11],[18],[27]	$ 366			366
Fair value		$ 366	[11],[18],[27]		$ 366	[11],[18],[27]		$ 338	[13],[17],[26]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Total Rate		20.00%	[11],[18],[27]		20.00%	[11],[18],[27]		20.00%	[13],[17],[26]
PIK Rate		20.00%	[11],[18],[27]		20.00%	[11],[18],[27]		20.00%	[13],[17],[26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[17],[26]				$ 217
Ending balance	[11],[18],[27]	$ 243			243
Fair value		$ 243	[11],[18],[27]		$ 243	[11],[18],[27]		$ 217	[13],[17],[26]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.35%	[11],[12],[15],[45]		12.35%	[11],[12],[15],[45]		11.50%	[13],[14]
Spread		6.75%	[11],[12],[15],[45]		6.75%	[11],[12],[15],[45]		6.75%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 387
Ending balance	[11],[12],[15],[45]	$ 543			543
Fair value		$ 543	[11],[12],[15],[45]		$ 543	[11],[12],[15],[45]		$ 387	[13],[14]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.18%	[11],[12],[15]		12.18%	[11],[12],[15]		11.50%	[13],[14]
Spread		6.75%	[11],[12],[15]		6.75%	[11],[12],[15]		6.75%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 10,871
Ending balance	[11],[12],[15]	$ 11,465			11,465
Fair value		11,465	[11],[12],[15]		11,465	[11],[12],[15]		$ 10,871	[13],[14]
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		1,000			1,000
Fair value		$ 1,000			$ 1,000
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 4,365			$ 4,365
Fair value		$ 4,365			$ 4,365
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	11.17%			11.17%
Spread		5.75%	[11],[12],[15]		5.75%	[11],[12],[15]		5.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (48)
Ending balance	[11],[12],[15]	$ 1,885			1,885
Fair value		$ 1,885	[11],[12],[15]		$ 1,885	[11],[12],[15]		$ (48)	[13],[14]
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.17%	[11],[12],[15]		11.17%	[11],[12],[15]		10.23%	[13],[14]
Spread		5.75%	[11],[12],[15]		5.75%	[11],[12],[15]		5.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 10,742
Ending balance	[11],[12],[15]	$ 10,660			10,660
Fair value		10,660	[11],[12],[15]		10,660	[11],[12],[15]		$ 10,742	[13],[14]
Investment, Identifier [Axis]: Insight Borrower Corporation, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	239			239
Fair value	[11]	$ 239			$ 239
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[15],[16]	6.25%			6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15],[16]	$ (43)			$ (43)
Fair value	[11],[12],[15],[16]	$ (43)			$ (43)
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[11],[12],[15],[16]	6.25%			6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15],[16]	$ (34)			$ (34)
Fair value	[11],[12],[15],[16]	$ (34)			$ (34)
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	11.57%			11.57%
Spread	[11],[12],[15]	6.25%			6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 8,132			$ 8,132
Fair value	[11],[12],[15]	8,132			8,132
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	322			322
Fair value	[11]	$ 322			$ 322
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	13.49%			13.49%
Spread	[11],[12],[15]	8.00%			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 527			$ 527
Fair value	[11],[12],[15]	$ 527			$ 527
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	13.40%			13.40%
Spread	[11],[12],[15]	8.00%			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 6,208			$ 6,208
Fair value	[11],[12],[15]	$ 6,208			$ 6,208
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	13.40%			13.40%
Spread	[11],[12],[15]	8.00%			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 1,250			$ 1,250
Fair value	[11],[12],[15]	1,250			1,250
Investment, Identifier [Axis]: Integral Energy Services, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(1,160)
Amount of Interest, Fees or Dividends Credited to Income					38
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,490
Gross Additions					0
Gross Reductions					1,160
Ending balance	[11]	330			330
Fair value		$ 330	[11]		$ 330	[11]		1,490
Investment, Identifier [Axis]: Integral Energy Services, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	13.01%			13.01%
Spread	[11],[12],[15]	7.50%			7.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(876)
Amount of Interest, Fees or Dividends Credited to Income					1,842
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					18,425
Gross Additions					58
Gross Reductions					876
Ending balance	[11],[12],[15]	$ 17,607			17,607
Fair value		17,607	[11],[12],[15]		17,607	[11],[12],[15]		18,425
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				0
Ending balance	[11]	0			0
Fair value		$ 0	[11]		$ 0	[11]		$ 0	[13]
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.51%	[11],[15],[23],[46]		15.51%	[11],[15],[23],[46]		14.22%	[13],[47]
Spread		10.00%	[11],[15],[23],[46]		10.00%	[11],[15],[23],[46]		10.00%	[13],[47]
PIK Rate	[11],[15],[23],[46]	15.51%			15.51%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[47]				$ 1,682
Ending balance	[11],[15],[23],[46]	$ 1,781			1,781
Fair value		$ 1,781	[11],[15],[23],[46]		$ 1,781	[11],[15],[23],[46]		$ 1,682	[13],[47]
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.43%	[11],[12],[15],[22],[23]		12.43%	[11],[12],[15],[22],[23]		12.07%	[13],[14],[24]
Spread		7.00%	[11],[12],[15],[22],[23]		7.00%	[11],[12],[15],[22],[23]		7.00%	[13],[14],[24]
PIK Rate		12.43%	[11],[12],[15],[22],[23]		12.43%	[11],[12],[15],[22],[23]		1.00%	[13],[14],[24]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14],[24]				$ 1,085
Ending balance	[11],[12],[15],[22],[23]	$ 537			537
Fair value		$ 537	[11],[12],[15],[22],[23]		$ 537	[11],[12],[15],[22],[23]		$ 1,085	[13],[14],[24]
Investment, Identifier [Axis]: Intermedia Holdings, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.43%	[8],[12],[15]		11.43%	[8],[12],[15]		10.38%	[7],[14]
Spread		6.00%	[8],[12],[15]		6.00%	[8],[12],[15]		6.00%	[7],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14]				$ 4,342
Ending balance	[8],[12],[15]	$ 5,300			5,300
Fair value		$ 5,300	[8],[12],[15]		$ 5,300	[8],[12],[15]		$ 4,342	[7],[14]
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.15%	[11],[12]		12.15%	[11],[12]		10.14%	[13],[14]
Spread		6.50%	[11],[12]		6.50%	[11],[12]		6.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 622
Ending balance	[11],[12]	$ 302			302
Fair value		$ 302	[11],[12]		$ 302	[11],[12]		$ 622	[13],[14]
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.15%	[11],[12]		12.15%	[11],[12]		10.17%	[13],[14]
Spread		6.50%	[11],[12]		6.50%	[11],[12]		6.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 17,148
Ending balance	[11],[12]	$ 16,373			16,373
Fair value		16,373	[11],[12]		16,373	[11],[12]		$ 17,148	[13],[14]
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					449
Ending balance		710			710
Fair value		$ 710			$ 710			$ 449
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.50%			13.50%			12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 1,108
Ending balance		$ 1,107			1,107
Fair value		$ 1,107			$ 1,107			$ 1,108
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%			13.50%			12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 771
Ending balance		$ 770			770
Fair value		$ 770			$ 770			$ 771
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.50%			13.50%			12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 2,236
Ending balance		$ 2,236			2,236
Fair value		$ 2,236			$ 2,236			$ 2,236
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		13.50%			13.50%			12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 4,813
Ending balance		$ 4,809			4,809
Fair value		$ 4,809			$ 4,809			$ 4,813
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate		13.50%			13.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 2,566			$ 2,566
Fair value		2,566			2,566
Investment, Identifier [Axis]: Isagenix International, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8]	0			0
Fair value	[8]	$ 0			$ 0
Investment, Identifier [Axis]: Isagenix International, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.59%	[8],[12],[15]		10.59%	[8],[12],[15]		9.93%	[7],[14],[24]
Spread		5.50%	[8],[12],[15]		5.50%	[8],[12],[15]		7.75%	[7],[14],[24]
PIK Rate	[8],[12],[15]	8.09%			8.09%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14],[24]				$ 1,537
Ending balance	[8],[12],[15]	$ 2,304			2,304
Fair value		2,304	[8],[12],[15]		2,304	[8],[12],[15]		$ 1,537	[7],[14],[24]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				240
Ending balance	[11]	190			190
Fair value		$ 190	[11]		$ 190	[11]		$ 240	[13]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	11.59%			11.59%
Spread		6.00%	[11],[12],[15]		6.00%	[11],[12],[15]		6.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (11)
Ending balance	[11],[12],[15]	$ 140			140
Fair value		$ 140	[11],[12],[15]		$ 140	[11],[12],[15]		$ (11)	[13],[14]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.66%	[11],[12],[15]		11.66%	[11],[12],[15]		10.73%	[13],[14]
Spread		6.00%	[11],[12],[15]		6.00%	[11],[12],[15]		6.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 3,059
Ending balance	[11],[12],[15]	$ 3,020			3,020
Fair value		3,020	[11],[12],[15]		3,020	[11],[12],[15]		$ 3,059	[13],[14]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Preferred Equity
Schedule of Investments [Line Items]
Total Rate	[13],[17]							12.00%
PIK Rate	[13],[17]							12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[17]				1,247
Ending balance	[11]	990			990
Fair value		$ 990	[11]		$ 990	[11]		$ 1,247	[13],[17]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.45%	[11],[12],[15]		12.45%	[11],[12],[15]		12.23%	[13],[14]
Spread		7.00%	[11],[12],[15]		7.00%	[11],[12],[15]		7.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 1,000
Ending balance	[11],[12],[15]	$ 1,683			1,683
Fair value		$ 1,683	[11],[12],[15]		$ 1,683	[11],[12],[15]		$ 1,000	[13],[14]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.43%	[11],[12],[15]		12.43%	[11],[12],[15]		12.23%	[13],[14]
Spread		7.00%	[11],[12],[15]		7.00%	[11],[12],[15]		7.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 4,126
Ending balance	[11],[12],[15]	$ 4,000			4,000
Fair value		4,000	[11],[12],[15]		4,000	[11],[12],[15]		$ 4,126	[13],[14]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				0
Ending balance	[8]	0			0
Fair value		$ 0	[8]		$ 0	[8]		$ 0	[7]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		23.64%	[8],[15],[22]		23.64%	[8],[15],[22]		18.00%	[7]
Spread	[8],[15],[22]	18.00%			18.00%
PIK Rate	[8],[15],[22]	23.64%			23.64%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				$ 1,935
Ending balance	[8],[15],[22]	$ 1,665			1,665
Fair value		$ 1,665	[8],[15],[22]		$ 1,665	[8],[15],[22]		$ 1,935	[7]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		21.48%	[8],[15],[22]		21.48%	[8],[15],[22]		19.75%	[7],[24]
Spread	[8],[15],[22]	16.00%			16.00%
PIK Rate		21.48%	[8],[15],[22]		21.48%	[8],[15],[22]		19.75%	[7],[24]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[24]				$ 418
Ending balance	[8],[15],[22]	$ 119			119
Fair value		$ 119	[8],[15],[22]		$ 119	[8],[15],[22]		$ 418	[7],[24]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[8],[15],[22]	21.48%			21.48%
Spread	[8],[15],[22]	16.00%			16.00%
PIK Rate	[8],[15],[22]	21.48%			21.48%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[15],[22]	$ 114			$ 114
Fair value	[8],[15],[22]	114			114
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[17]				620
Ending balance	[18]	850			850
Fair value		$ 850	[18]		$ 850	[18]		$ 620	[17]
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		11.50%	[12],[15],[16]		11.50%	[12],[15],[16]		11.50%	[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				$ 0
Ending balance	[12],[15],[16]	$ 0			0
Fair value		$ 0	[12],[15],[16]		$ 0	[12],[15],[16]		$ 0	[14]
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		16.98%	[12],[15]		16.98%	[12],[15]		15.63%	[14]
Spread		11.50%	[12],[15]		11.50%	[12],[15]		11.50%	[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				$ 1,111
Ending balance	[12],[15]	$ 1,040			1,040
Fair value		1,040	[12],[15]		1,040	[12],[15]		$ 1,111	[14]
Investment, Identifier [Axis]: JorVet Holdings, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[17]				1,193
Ending balance	[18]	1,193			1,193
Fair value		$ 1,193	[18]		$ 1,193	[18]		$ 1,193	[17]
Investment, Identifier [Axis]: JorVet Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 2,802
Ending balance		$ 2,811			2,811
Fair value		$ 2,811			$ 2,811			$ 2,802
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.75%	[11],[12]		15.75%	[11],[12]		12.00%	[13],[14]
Spread		7.25%	[11],[12]		7.25%	[11],[12]		7.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 1,244
Ending balance	[11],[12]	$ 1,191			1,191
Fair value		$ 1,191	[11],[12]		$ 1,191	[11],[12]		$ 1,244	[13],[14]
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.75%	[11],[12]		15.75%	[11],[12]		12.00%	[13],[14]
Spread		7.25%	[11],[12]		7.25%	[11],[12]		7.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 8,778
Ending balance	[11],[12]	$ 8,513			8,513
Fair value		8,513	[11],[12]		8,513	[11],[12]		$ 8,778	[13],[14]
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					2
Amount of Interest, Fees or Dividends Credited to Income					23
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[17],[26]				713
Gross Additions					3
Gross Reductions					1
Ending balance	[18],[27]	715			715
Fair value		715	[18],[27]		715	[18],[27]		713	[17],[26]
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(770)
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							3,080
Gross Additions							0
Gross Reductions							770
Ending balance				2,310			2,310
Fair value				2,310			2,310
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							21
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							615
Gross Additions							0
Gross Reductions							0
Ending balance				615			615
Fair value				$ 615			$ 615
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					410
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,800
Gross Additions					410
Gross Reductions					0
Ending balance		2,210			2,210
Fair value		$ 2,210			$ 2,210			$ 1,800
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.00%		11.50%	12.00%		11.50%	11.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					513		471
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,093		5,040
Gross Additions					56		26
Gross Reductions					199		0
Ending balance		$ 4,950		$ 5,066	4,950		5,066
Fair value		$ 4,950		$ 5,066	$ 4,950		$ 5,066	$ 5,093
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9.00%		9.00%	9.00%		9.00%	9.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					66		66
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					961		970
Gross Additions					0		0
Gross Reductions					7		7
Ending balance		$ 954		$ 963	954		963
Fair value		$ 954		963	$ 954		963	$ 961
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.67%	[11],[12],[15]		12.67%	[11],[12],[15]		11.21%	[13],[14]
Spread		7.25%	[11],[12],[15]		7.25%	[11],[12],[15]		7.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 7,945
Ending balance	[11],[12],[15]	$ 7,960			7,960
Fair value		$ 7,960	[11],[12],[15]		$ 7,960	[11],[12],[15]		$ 7,945	[13],[14]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.67%	[11],[12],[15]		12.67%	[11],[12],[15]		11.67%	[13],[14]
Spread		7.25%	[11],[12],[15]		7.25%	[11],[12],[15]		7.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 6,119
Ending balance	[11],[12],[15]	$ 5,246			5,246
Fair value		$ 5,246	[11],[12],[15]		$ 5,246	[11],[12],[15]		$ 6,119	[13],[14]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.67%	[11],[12],[15]		12.67%	[11],[12],[15]		11.67%	[13],[14]
Spread		7.25%	[11],[12],[15]		7.25%	[11],[12],[15]		7.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 8,820
Ending balance	[11],[12],[15]	$ 0			0
Fair value		$ 0	[11],[12],[15]		$ 0	[11],[12],[15]		$ 8,820	[13],[14]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	12.67%			12.67%
Spread	[11],[12],[15]	7.25%			7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 871			$ 871
Fair value	[11],[12],[15]	$ 871			$ 871
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 5
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	12.67%			12.67%
Spread	[11],[12],[15]	7.25%			7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 8,822			$ 8,822
Fair value	[11],[12],[15]	$ 8,822			$ 8,822
Investment, Identifier [Axis]: LLFlex, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.40%	[11],[12],[15]		15.40%	[11],[12],[15]		12.74%	[13],[14]
Spread		9.00%	[11],[12],[15]		9.00%	[11],[12],[15]		9.00%	[13],[14]
PIK Rate	[11],[12],[15]	1.00%			1.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 4,833
Ending balance	[11],[12],[15]	$ 4,411			4,411
Fair value		$ 4,411	[11],[12],[15]		$ 4,411	[11],[12],[15]		$ 4,833	[13],[14]
Investment, Identifier [Axis]: Lightbox Holdings, L.P., Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.65%	[8],[15]		10.65%	[8],[15]		9.73%	[7]
Spread		5.00%	[8],[15]		5.00%	[8],[15]		5.00%	[7]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				$ 5,622
Ending balance	[8],[15]	$ 5,607			5,607
Fair value		$ 5,607	[8],[15]		$ 5,607	[8],[15]		$ 5,622	[7]
Investment, Identifier [Axis]: Logix Acquisition Company, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.48%	[11],[12]		11.48%	[11],[12]		10.13%	[13],[14]
Spread		5.75%	[11],[12]		5.75%	[11],[12]		5.75%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 7,843
Ending balance	[11],[12]	$ 9,256			9,256
Fair value		$ 9,256	[11],[12]		$ 9,256	[11],[12]		$ 7,843	[13],[14]
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.42%	[8],[12],[15]		11.42%	[8],[12],[15]		10.42%	[7],[14]
Spread		6.00%	[8],[12],[15]		6.00%	[8],[12],[15]		6.00%	[7],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14]				$ 8,359
Ending balance	[8],[12],[15]	$ 2,811			2,811
Fair value		$ 2,811	[8],[12],[15]		$ 2,811	[8],[12],[15]		$ 8,359	[7],[14]
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.42%	[8],[12],[15]		11.42%	[8],[12],[15]		10.42%	[7],[14]
Spread		6.00%	[8],[12],[15]		6.00%	[8],[12],[15]		6.00%	[7],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14]				$ 7,876
Ending balance	[8],[12],[15]	$ 3,945			3,945
Fair value		$ 3,945	[8],[12],[15]		$ 3,945	[8],[12],[15]		$ 7,876	[7],[14]
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[8],[12],[15]	11.42%			11.42%
Spread	[8],[12],[15]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[12],[15]	$ 3,472			$ 3,472
Fair value	[8],[12],[15]	$ 3,472			$ 3,472
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[8],[12],[15]	11.42%			11.42%
Spread	[8],[12],[15]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[12],[15]	$ 7,816			$ 7,816
Fair value	[8],[12],[15]	7,816			7,816
Investment, Identifier [Axis]: MH Corbin Holding LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					80		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					80		0
Gross Reductions					0		0
Ending balance		80		0	80		0
Fair value		80		0	80		0	0
Investment, Identifier [Axis]: MH Corbin Holding LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0		0	0		0
Fair value		$ 0		$ 0	$ 0		$ 0	$ 0
Investment, Identifier [Axis]: MH Corbin Holding LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.00%	[23]	13.00%	13.00%	[23]	13.00%	13.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					307		(305)
Amount of Interest, Fees or Dividends Credited to Income					145		199
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,137		1,484
Gross Additions					308		2
Gross Reductions					169		809
Ending balance		$ 1,276	[23]	$ 677	1,276	[23]	677
Fair value		$ 1,276	[23]	677	$ 1,276	[23]	677	$ 1,137
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.56%	[11],[12]		12.56%	[11],[12]		11.79%	[13],[14],[48]
Spread		7.25%	[11],[12]		7.25%	[11],[12]		7.25%	[13],[14],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14],[48]				$ 3,426
Ending balance	[11],[12]	$ 811			811
Fair value		$ 811	[11],[12]		$ 811	[11],[12]		$ 3,426	[13],[14],[48]
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.56%	[11],[12],[15]		12.56%	[11],[12],[15]		11.09%	[13],[14]
Spread		7.00%	[11],[12],[15]		7.00%	[11],[12],[15]		7.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 16,959
Ending balance	[11],[12],[15]	$ 16,830			16,830
Fair value		16,830	[11],[12],[15]		16,830	[11],[12],[15]		$ 16,959	[13],[14]
Investment, Identifier [Axis]: Market Force Information, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					(4,160)		0
Amount of Unrealized Gain/(Loss)					4,160		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					4,160		0
Gross Reductions					4,160		0
Ending balance		0		0	0		0
Fair value		0		$ 0	0		$ 0	$ 0
Investment, Identifier [Axis]: Market Force Information, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate				12.00%			12.00%	12.00%	[24]
PIK Rate				12.00%			12.00%	12.00%	[24]
Amount of Realized Gain/(Loss)					(6,465)		$ 0
Amount of Unrealized Gain/(Loss)					6,060		(1,516)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					403	[24]	2,234
Gross Additions					6,060		0
Gross Reductions					6,463		1,516
Ending balance		0		$ 718	0		718
Fair value		0		718	0		718	$ 403	[24]
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					113
Fair value								$ 113
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Preferred Equity
Schedule of Investments [Line Items]
Total Rate	[17]							8.00%
PIK Rate	[17]							8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[17]				441
Fair value	[17]							$ 441
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(1)
Fair value								$ (1)
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate								12.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,697
Fair value								$ 1,697
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[18]	100			100
Fair value	[18]	$ 100			$ 100
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Total Rate	[18]	8.00%			8.00%
PIK Rate	[18]	8.00%			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[18]	$ 467			$ 467
Fair value	[18]	467			467
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[16]	(1)			(1)
Fair value	[16]	$ (1)			$ (1)
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.75%			12.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 1,705			$ 1,705
Fair value		$ 1,705			$ 1,705
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.25%	[11],[12],[15],[16]		6.25%	[11],[12],[15],[16]		6.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (7)
Ending balance	[11],[12],[15],[16]	$ (6)			(6)
Fair value		$ (6)	[11],[12],[15],[16]		$ (6)	[11],[12],[15],[16]		$ (7)	[13],[14]
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.42%	[11],[12],[15]		11.42%	[11],[12],[15]		9.86%	[13],[14]
Spread		6.00%	[11],[12],[15]		6.00%	[11],[12],[15]		6.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 3,034
Ending balance	[11],[12],[15]	$ 2,821			2,821
Fair value		$ 2,821	[11],[12],[15]		$ 2,821	[11],[12],[15]		$ 3,034	[13],[14]
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.02%	[11],[12],[15]		12.02%	[11],[12],[15]		10.66%	[13],[14]
Spread		6.50%	[11],[12],[15]		6.50%	[11],[12],[15]		6.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 18,338
Ending balance	[11],[12],[15]	$ 17,991			17,991
Fair value		17,991	[11],[12],[15]		17,991	[11],[12],[15]		$ 18,338	[13],[14]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[31],[49]				256
Ending balance	[11],[29]	160			160
Fair value		$ 160	[11],[29]		$ 160	[11],[29]		$ 256	[13],[31],[49]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[29]	14.00%			14.00%
Spread	[13],[14],[31],[49]							7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14],[31],[49]				$ (19)
Ending balance	[11],[29]	$ 1,076			1,076
Fair value		$ 1,076	[11],[29]		$ 1,076	[11],[29]		$ (19)	[13],[14],[31],[49]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.00%	[11],[29]		14.00%	[11],[29]		11.73%	[13],[14],[31],[49]
Spread	[13],[14],[31],[49]							7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14],[31],[49]				$ 3,139
Ending balance	[11],[29]	$ 3,019			3,019
Fair value		$ 3,019	[11],[29]		$ 3,019	[11],[29]		$ 3,139	[13],[14],[31],[49]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		14.00%	[11],[29]		14.00%	[11],[29]		11.73%	[13],[14],[31],[49]
Spread	[13],[14],[31],[49]							7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14],[31],[49]				$ 4,906
Ending balance	[11],[29]	$ 4,906			4,906
Fair value		4,906	[11],[29]		4,906	[11],[29]		$ 4,906	[13],[14],[31],[49]
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1,080		2,965
Amount of Interest, Fees or Dividends Credited to Income					785		739
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,708	[17]	2,210
Gross Additions					1,080		2,965
Gross Reductions					0		0
Ending balance		6,788	[18]	5,175	6,788	[18]	5,175
Fair value		6,788	[18]	5,175	6,788	[18]	5,175	5,708	[17]
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1		1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0	[16]	0	0	[16]	0
Fair value		$ 0	[16]	$ 0	$ 0	[16]	$ 0	$ 0
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%		10.00%	10.00%		10.00%	10.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					109		115
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,436		1,595
Gross Additions					0		0
Gross Reductions					0		159
Ending balance		$ 1,436		$ 1,436	1,436		1,436
Fair value		$ 1,436		1,436	$ 1,436		1,436	$ 1,436
Investment, Identifier [Axis]: NTM Acquisition Corp., Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.79%	[8],[12],[15]		13.79%	[8],[12],[15]		9.50%	[7],[14]
Spread		7.25%	[8],[12],[15]		7.25%	[8],[12],[15]		6.25%	[7],[14]
PIK Rate		1.00%	[8],[12],[15]		1.00%	[8],[12],[15]		1.00%	[7],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14]				$ 3,915
Ending balance	[8],[12],[15]	$ 3,768			3,768
Fair value		$ 3,768	[8],[12],[15]		$ 3,768	[8],[12],[15]		$ 3,915	[7],[14]
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[13],[14],[50]							10.85%
Spread		9.00%	[11],[12],[15],[16]		9.00%	[11],[12],[15],[16]		8.00%	[13],[14],[50]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14],[50]				$ 1,482
Ending balance	[11],[12],[15],[16]	$ (39)			(39)
Fair value		$ (39)	[11],[12],[15],[16]		$ (39)	[11],[12],[15],[16]		$ 1,482	[13],[14],[50]
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.52%	[11],[12],[15]		14.52%	[11],[12],[15]		12.56%	[13],[14]
Spread		9.00%	[11],[12],[15]		9.00%	[11],[12],[15]		8.00%	[13],[14]
PIK Rate	[11],[12],[15]	1.00%			1.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 19,620
Ending balance	[11],[12],[15]	$ 20,558			20,558
Fair value		$ 20,558	[11],[12],[15]		$ 20,558	[11],[12],[15]		$ 19,620	[13],[14]
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		20.00%	[11]		20.00%	[11]		20.00%	[13]
PIK Rate		20.00%	[11]		20.00%	[11]		20.00%	[13]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				$ 3,065
Ending balance	[11]	$ 3,782			3,782
Fair value		3,782	[11]		3,782	[11]		$ 3,065	[13]
Investment, Identifier [Axis]: NexRev LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1,310		(723)
Amount of Interest, Fees or Dividends Credited to Income					43		15
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					280	[17]	670
Gross Additions					1,310		333
Gross Reductions					0		723
Ending balance		1,590	[18]	280	1,590	[18]	280
Fair value		1,590	[18]	$ 280	1,590	[18]	$ 280	280	[17]
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				11.00%			11.00%
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		199
Gross Additions					0		0
Gross Reductions					0		159
Ending balance		0	[16]	$ 40	0	[16]	40
Fair value		$ 0	[16]	$ 40	$ 0	[16]	$ 40	$ 0
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%		11.00%	10.00%		11.00%	11.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					708		(236)
Amount of Interest, Fees or Dividends Credited to Income					223		394
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,119		3,311
Gross Additions					725		0
Gross Reductions					413		1,048
Ending balance		$ 2,431		$ 2,263	2,431		2,263
Fair value		$ 2,431		2,263	$ 2,431		2,263	$ 2,119
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.25%	[11],[12],[15],[16]		6.25%	[11],[12],[15],[16]		6.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 0
Ending balance	[11],[12],[15],[16]	$ 0			0
Fair value		$ 0	[11],[12],[15],[16]		$ 0	[11],[12],[15],[16]		$ 0	[13],[14]
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread		6.25%	[11],[12],[15],[16]		6.25%	[11],[12],[15],[16]		6.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (23)
Ending balance	[11],[12],[15],[16]	$ (15)			(15)
Fair value		$ (15)	[11],[12],[15],[16]		$ (15)	[11],[12],[15],[16]		$ (23)	[13],[14]
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.40%	[11],[12],[15]		11.40%	[11],[12],[15]		9.99%	[13],[14]
Spread		6.00%	[11],[12],[15]		6.00%	[11],[12],[15]		6.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 11,634
Ending balance	[11],[12],[15]	$ 10,991			10,991
Fair value		10,991	[11],[12],[15]		10,991	[11],[12],[15]		$ 11,634	[13],[14]
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(830)
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							3,380
Gross Additions							0
Gross Reductions							830
Ending balance				2,550			2,550
Fair value				$ 2,550			$ 2,550
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					300
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,010
Gross Additions					300
Gross Reductions					0
Ending balance		2,310			2,310
Fair value		2,310			2,310			2,010
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,290
Gross Additions					0
Gross Reductions					0
Ending balance		1,290			1,290
Fair value		$ 1,290			$ 1,290			$ 1,290
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.98%	[12],[15]	9.13%	11.98%	[12],[15]	9.13%	10.63%	[14]
Spread		6.50%	[12],[15]	6.50%	6.50%	[12],[15]	6.50%	6.50%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(2)		0
Amount of Interest, Fees or Dividends Credited to Income					92		49
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,100	[14]	430
Gross Additions					1		667
Gross Reductions					203		0
Ending balance		$ 898	[12],[15]	$ 1,097	898	[12],[15]	1,097
Fair value		$ 898	[12],[15]	$ 1,097	$ 898	[12],[15]	$ 1,097	$ 1,100	[14]
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%		12.00%	12.00%		12.00%	12.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		(2)
Amount of Interest, Fees or Dividends Credited to Income					422		403
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,603		4,310
Gross Additions					3		294
Gross Reductions					0		2
Ending balance		$ 4,606		$ 4,602	4,606		4,602
Fair value		$ 4,606		4,602	4,606		4,602	$ 4,603
Investment, Identifier [Axis]: OVG Business Services, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[13],[14]							10.64%
Spread	[13],[14]							6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 16,368
Fair value	[13],[14]							$ 16,368
Investment, Identifier [Axis]: Obra Capital, Inc, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[8],[15]	11.43%			11.43%
Spread	[8],[15]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[15]	$ 5,990			$ 5,990
Fair value	[8],[15]	5,990			5,990
Investment, Identifier [Axis]: Oneliance, LLC, Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					264		264
Gross Additions					18		0
Gross Reductions					0		0
Ending balance		282		264	282		264
Fair value		$ 282		$ 264	$ 282		$ 264	$ 264
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		16.48%	[12],[15]	13.56%	16.48%	[12],[15]	13.56%	15.13%	[14]
Spread		11.00%	[12],[15]		11.00%	[12],[15]		11.00%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(7)		0
Amount of Interest, Fees or Dividends Credited to Income					172		136
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,380	[14]	1,374
Gross Additions					4		4
Gross Reductions					27		0
Ending balance		$ 1,357	[12],[15]	$ 1,378	1,357	[12],[15]	1,378
Fair value		1,357	[12],[15]	1,378	1,357	[12],[15]	1,378	$ 1,380	[14]
Investment, Identifier [Axis]: Orttech Holdings, LLC, Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1,320		0
Amount of Interest, Fees or Dividends Credited to Income					227		145
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,940	[17],[26]	2,500
Gross Additions					1,320		0
Gross Reductions					0		0
Ending balance		4,260	[18],[27]	2,500	4,260	[18],[27]	2,500
Fair value		$ 4,260	[18],[27]	2,500	$ 4,260	[18],[27]	2,500	$ 2,940	[17],[26]
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		11.00%	[12],[15],[16]		11.00%	[12],[15],[16]		11.00%	[14]
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					2		0
Amount of Interest, Fees or Dividends Credited to Income					1		5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(2)	[14]	41
Gross Additions					2		0
Gross Reductions					0		44
Ending balance		$ 0	[12],[15],[16]	(3)	0	[12],[15],[16]	(3)
Fair value		$ 0	[12],[15],[16]	$ (3)	$ 0	[12],[15],[16]	$ (3)	$ (2)	[14]
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		16.48%	[12],[15]	13.63%	16.48%	[12],[15]	13.63%	15.13%	[14]
Spread		11.00%	[12],[15]		11.00%	[12],[15]		11.00%	[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					64		0
Amount of Interest, Fees or Dividends Credited to Income					716		587
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,814	[14]	5,937
Gross Additions					86		21
Gross Reductions					350		150
Ending balance		$ 5,550	[12],[15]	$ 5,808	5,550	[12],[15]	5,808
Fair value		$ 5,550	[12],[15]	5,808	$ 5,550	[12],[15]	5,808	$ 5,814	[14]
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[12],[28],[29]	14.22%			14.22%
Spread		6.75%	[11],[12],[28],[29]		6.75%	[11],[12],[28],[29]		7.25%	[14],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[31]				$ (12)
Ending balance	[11],[12],[28],[29]	$ 256			256
Fair value		$ 256	[11],[12],[28],[29]		$ 256	[11],[12],[28],[29]		$ (12)	[14],[31]
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.39%	[11],[12],[15],[29]		13.39%	[11],[12],[15],[29]		11.80%	[14],[31]
Spread		7.75%	[11],[12],[15],[29]		7.75%	[11],[12],[15],[29]		7.25%	[14],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[31]				$ 1,828
Ending balance	[11],[12],[15],[29]	$ 1,750			1,750
Fair value		$ 1,750	[11],[12],[15],[29]		$ 1,750	[11],[12],[15],[29]		$ 1,828	[14],[31]
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[13],[14]							10.26%
Spread		5.75%	[11],[12],[15],[16]		5.75%	[11],[12],[15],[16]		5.75%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 70
Ending balance	[11],[12],[15],[16]	$ 0			0
Fair value		$ 0	[11],[12],[15],[16]		$ 0	[11],[12],[15],[16]		$ 70	[13],[14]
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.17%	[11],[12],[15]		11.17%	[11],[12],[15]		9.96%	[13],[14],[51]
Spread		5.75%	[11],[12],[15]		5.75%	[11],[12],[15]		5.75%	[13],[14],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14],[51]				$ 349
Ending balance	[11],[12],[15]	$ 425			425
Fair value		$ 425	[11],[12],[15]		$ 425	[11],[12],[15]		$ 349	[13],[14],[51]
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.17%	[11],[12],[15]		11.17%	[11],[12],[15]		9.81%	[13],[14]
Spread		5.75%	[11],[12],[15]		5.75%	[11],[12],[15]		5.75%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 2,317
Ending balance	[11],[12],[15]	$ 2,469			2,469
Fair value		2,469	[11],[12],[15]		2,469	[11],[12],[15]		$ 2,317	[13],[14]
Investment, Identifier [Axis]: Power System Solutions, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	532			532
Fair value	[11]	$ 532			$ 532
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[15],[16]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15],[16]	$ (37)			$ (37)
Fair value	[11],[12],[15],[16]	$ (37)			$ (37)
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[11],[12],[15],[16]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15],[16]	$ (37)			$ (37)
Fair value	[11],[12],[15],[16]	$ (37)			$ (37)
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	12.03%			12.03%
Spread	[11],[12],[15]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 7,898			$ 7,898
Fair value	[11],[12],[15]	$ 7,898			$ 7,898
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	11.87%			11.87%
Spread	[11],[12],[15]	6.85%			6.85%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 6,505			$ 6,505
Fair value	[11],[12],[15]	$ 6,505			$ 6,505
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	12.64%			12.64%
Spread		7.00%	[11],[12],[15]		7.00%	[11],[12],[15]		6.75%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (11)
Ending balance	[11],[12],[15]	$ 451			451
Fair value		$ 451	[11],[12],[15]		$ 451	[11],[12],[15]		$ (11)	[13],[14]
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.14%	[11],[12],[15]		12.14%	[11],[12],[15]		10.56%	[13],[14]
Spread		6.75%	[11],[12],[15]		6.75%	[11],[12],[15]		6.75%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 11,685
Ending balance	[11],[12],[15]	$ 11,943			11,943
Fair value		11,943	[11],[12],[15]		11,943	[11],[12],[15]		$ 11,685	[13],[14]
Investment, Identifier [Axis]: RM Bidder, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				13
Ending balance	[11]	10			10
Fair value		10	[11]		10	[11]		13	[13]
Investment, Identifier [Axis]: RM Bidder, LLC, Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[52]				0
Ending balance	[11],[53]	0			0
Fair value		$ 0	[11],[53]		$ 0	[11],[53]		$ 0	[13],[52]
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.13%	[8],[12],[15]		11.13%	[8],[12],[15]		8.84%	[7],[14]
Spread		5.50%	[8],[12],[15]		5.50%	[8],[12],[15]		5.50%	[7],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14]				$ 7,434
Ending balance	[8],[12],[15]	$ 7,104			7,104
Fair value		$ 7,104	[8],[12],[15]		$ 7,104	[8],[12],[15]		$ 7,434	[7],[14]
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15],[54]	11.82%			11.82%
Spread	[11],[12],[15],[54]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15],[54]	$ 1,006			$ 1,006
Fair value	[11],[12],[15],[54]	$ 1,006			$ 1,006
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	11.82%			11.82%
Spread	[11],[12],[15]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 10,298			$ 10,298
Fair value	[11],[12],[15]	10,298			10,298
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(1,340)		460
Amount of Interest, Fees or Dividends Credited to Income					0		62
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,650		0
Gross Additions					0		1,690
Gross Reductions					1,340		0
Ending balance		310		1,690	310		1,690
Fair value		$ 310		1,690	$ 310		1,690	1,650
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		11.00%			11.00%
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					3		3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(8)	[14]	0
Gross Additions					2		2
Gross Reductions					0		10
Ending balance		$ (6)	[16]	(8)	(6)	[16]	(8)
Fair value		$ (6)	[16]	$ (8)	$ (6)	[16]	$ (8)	$ (8)	[14]
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%		13.63%	12.50%		13.63%	12.50%	[14]
Spread		11.00%			11.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(43)		0
Amount of Interest, Fees or Dividends Credited to Income					382		392
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,902	[14]	0
Gross Additions					13		3,973
Gross Reductions					167		50
Ending balance		$ 3,748		$ 3,923	3,748		3,923
Fair value		$ 3,748		3,923	$ 3,748		3,923	$ 3,902	[14]
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[13],[14]							10.97%
Spread		6.50%	[11],[12],[15],[16]		6.50%	[11],[12],[15],[16]		6.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 389
Ending balance	[11],[12],[15],[16]	$ 0			0
Fair value		$ 0	[11],[12],[15],[16]		$ 0	[11],[12],[15],[16]		$ 389	[13],[14]
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.01%	[11],[12],[15]		12.01%	[11],[12],[15]		10.32%	[13],[14]
Spread		6.50%	[11],[12],[15]		6.50%	[11],[12],[15]		6.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 2,917
Ending balance	[11],[12],[15]	$ 4,219			4,219
Fair value		$ 4,219	[11],[12],[15]		$ 4,219	[11],[12],[15]		$ 2,917	[13],[14]
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		14.01%	[11],[12],[15]		14.01%	[11],[12],[15]		10.32%	[13],[14]
Spread		8.50%	[11],[12],[15]		8.50%	[11],[12],[15]		6.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 3,967
Ending balance	[11],[12],[15]	$ 4,219			4,219
Fair value		$ 4,219	[11],[12],[15]		$ 4,219	[11],[12],[15]		$ 3,967	[13],[14]
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.33%	[11],[12],[15]		13.33%	[11],[12],[15]		13.02%	[13],[14]
Spread		5.75%	[11],[12],[15]		5.75%	[11],[12],[15]		6.25%	[13],[14]
PIK Rate		2.00%	[11],[12],[15]		2.00%	[11],[12],[15]		2.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 5,597
Ending balance	[11],[12],[15]	$ 6,246			6,246
Fair value		$ 6,246	[11],[12],[15]		$ 6,246	[11],[12],[15]		$ 5,597	[13],[14]
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.33%	[11],[12],[15]		13.33%	[11],[12],[15]		13.02%	[13],[14]
Spread		5.75%	[11],[12],[15]		5.75%	[11],[12],[15]		6.25%	[13],[14]
PIK Rate		2.00%	[11],[12],[15]		2.00%	[11],[12],[15]		2.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 8,293
Ending balance	[11],[12],[15]	$ 9,244			9,244
Fair value		9,244	[11],[12],[15]		9,244	[11],[12],[15]		$ 8,293	[13],[14]
Investment, Identifier [Axis]: SI East, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1,188		1,120
Amount of Interest, Fees or Dividends Credited to Income					348		189
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,550	[17]	3,860
Gross Additions					1,290		1,120
Gross Reductions					0		0
Ending balance		5,840	[18]	4,980	5,840	[18]	4,980
Fair value		$ 5,840	[18]	$ 4,980	$ 5,840	[18]	$ 4,980	4,550	[17]
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.25%		10.25%	11.25%		10.25%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					6		0
Amount of Interest, Fees or Dividends Credited to Income					8		64
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		750
Gross Additions					625		1,250
Gross Reductions					0		1,250
Ending balance		$ 625		$ 750	625		750
Fair value		$ 625		$ 750	$ 625		$ 750	$ 0
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.49%		10.25%	12.49%		10.25%	9.50%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							134
Amount of Interest, Fees or Dividends Credited to Income							1,885
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 29,929		21,200
Gross Additions							10,375
Gross Reductions							496
Ending balance		$ 18,179		$ 31,079	18,179		31,079
Fair value		$ 18,179		31,079	$ 18,179		31,079	$ 29,929
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		12.49%			12.49%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					170
Amount of Interest, Fees or Dividends Credited to Income					690
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					18,179
Gross Reductions					0
Ending balance		$ 18,179			18,179
Fair value		18,179			18,179			0
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(134)
Amount of Interest, Fees or Dividends Credited to Income					1,403
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					29,929
Gross Additions					0
Gross Reductions					29,929
Ending balance		0			0
Fair value		0			0			29,929
Investment, Identifier [Axis]: SIB Holdings, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				183
Ending balance	[11]	55			55
Fair value		$ 55	[11]		$ 55	[11]		$ 183	[13]
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.81%	[11],[12],[15]		11.81%	[11],[12],[15]		11.01%	[13],[14]
Spread		6.25%	[11],[12],[15]		6.25%	[11],[12],[15]		6.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 491
Ending balance	[11],[12],[15]	$ 822			822
Fair value		$ 822	[11],[12],[15]		$ 822	[11],[12],[15]		$ 491	[13],[14]
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.81%	[11],[12],[15]		11.81%	[11],[12],[15]		11.01%	[13],[14]
Spread		6.25%	[11],[12],[15]		6.25%	[11],[12],[15]		6.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 1,803
Ending balance	[11],[12],[15]	$ 1,738			1,738
Fair value		$ 1,738	[11],[12],[15]		$ 1,738	[11],[12],[15]		$ 1,803	[13],[14]
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.81%	[11],[12],[15]		11.81%	[11],[12],[15]		11.01%	[13],[14]
Spread		6.25%	[11],[12],[15]		6.25%	[11],[12],[15]		6.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 8,974
Ending balance	[11],[12],[15]	$ 6,800			6,800
Fair value		$ 6,800	[11],[12],[15]		$ 6,800	[11],[12],[15]		$ 8,974	[13],[14]
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	11.81%			11.81%
Spread	[11],[12],[15]	6.25%			6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 517			$ 517
Fair value	[11],[12],[15]	$ 517			$ 517
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	11.81%			11.81%
Spread	[11],[12],[15]	6.25%			6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 1,255			$ 1,255
Fair value	[11],[12],[15]	1,255			1,255
Investment, Identifier [Axis]: SPAU Holdings, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				200
Ending balance	[11]	160			160
Fair value		$ 160	[11]		$ 160	[11]		$ 200	[13]
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	13.11%			13.11%
Spread		7.50%	[11],[12],[15]		7.50%	[11],[12],[15]		7.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (18)
Ending balance	[11],[12],[15]	$ 780			780
Fair value		$ 780	[11],[12],[15]		$ 780	[11],[12],[15]		$ (18)	[13],[14]
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.22%	[11],[12],[15]		13.22%	[11],[12],[15]		11.06%	[13],[14]
Spread		7.50%	[11],[12],[15]		7.50%	[11],[12],[15]		7.50%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 4,975
Ending balance	[11],[12],[15]	$ 4,950			4,950
Fair value		4,950	[11],[12],[15]		4,950	[11],[12],[15]		$ 4,975	[13],[14]
Investment, Identifier [Axis]: Savers, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7],[14]							10.34%
Spread	[7],[14]							5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14]				4,149
Fair value	[7],[14]							$ 4,149
Investment, Identifier [Axis]: Slick Innovations, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[17]				400
Ending balance	[18]	520			520
Fair value		$ 520	[18]		$ 520	[18]		$ 400	[17]
Investment, Identifier [Axis]: Slick Innovations, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14.00%			14.00%			14.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 3,460
Ending balance		$ 3,040			3,040
Fair value		$ 3,040			3,040			$ 3,460
Investment, Identifier [Axis]: Sonic Systems International, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							66
Amount of Interest, Fees or Dividends Credited to Income							38
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 1,490	[13]	1,250
Gross Additions							400
Gross Reductions							0
Ending balance				1,650			1,650
Fair value				$ 1,650			$ 1,650	$ 1,490	[13]
Investment, Identifier [Axis]: Sonic Systems International, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate				9.78%			9.78%	11.24%	[13],[14]
Spread		7.50%			7.50%			7.50%	[13],[14]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							118
Amount of Interest, Fees or Dividends Credited to Income							1,129
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 18,425	[13],[14]	13,738
Gross Additions							4,504
Gross Reductions							0
Ending balance				$ 18,242			18,242
Fair value				18,242			18,242	$ 18,425	[13],[14]
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				92
Ending balance	[11]	$ 75			75
Fair value		$ 75	[11]		$ 75	[11]		$ 92	[13]
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.25%	[11],[12],[15],[16]		6.25%	[11],[12],[15],[16]		5.75%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (6)
Ending balance	[11],[12],[15],[16]	$ (5)			(5)
Fair value		$ (5)	[11],[12],[15],[16]		$ (5)	[11],[12],[15],[16]		$ (6)	[13],[14]
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.95%	[11],[12],[15]		11.95%	[11],[12],[15]		9.69%	[13],[14]
Spread		6.25%	[11],[12],[15]		6.25%	[11],[12],[15]		5.75%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 3,523
Ending balance	[11],[12],[15]	$ 2,997			2,997
Fair value		2,997	[11],[12],[15]		2,997	[11],[12],[15]		$ 3,523	[13],[14]
Investment, Identifier [Axis]: Student Resource Center, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					139
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				0
Gross Additions					139
Gross Reductions					0
Ending balance	[11]	139			139
Fair value		$ 139	[11]		$ 139	[11]		$ 0	[13]
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		8.50%	[11]		8.50%	[11]		13.27%	[13]
Spread	[13]							8.50%
PIK Rate	[11]	8.50%			8.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(126)
Amount of Interest, Fees or Dividends Credited to Income					364
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				5,063
Gross Additions					243
Gross Reductions					8
Ending balance	[11]	$ 5,298			5,298
Fair value		5,298	[11]		5,298	[11]		$ 5,063	[13]
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(483)
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,920		2,145
Gross Additions							122
Gross Reductions							483
Ending balance				1,784			1,784
Fair value				$ 1,784			$ 1,784	1,920
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(1,020)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,920
Gross Additions					0
Gross Reductions					1,020
Ending balance		900			900
Fair value		900			900			1,920
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					44
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					150
Gross Reductions					0
Ending balance		150			150
Fair value		150			150			0
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 3
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					180
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					300
Gross Reductions					0
Ending balance		300			300
Fair value		$ 300			$ 300			$ 0
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.00%	[23]	12.00%	12.00%	[23]	12.00%	12.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(14)		0
Amount of Interest, Fees or Dividends Credited to Income					42		41
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					460		259
Gross Additions					0		201
Gross Reductions					14		0
Ending balance		$ 446	[23]	$ 460	446	[23]	460
Fair value		$ 446	[23]	$ 460	$ 446	[23]	$ 460	$ 460
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%	[23]	12.00%	12.00%	[23]	12.00%	12.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(102)		(16)
Amount of Interest, Fees or Dividends Credited to Income					349		387
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,780		3,754
Gross Additions					3		41
Gross Reductions					102		16
Ending balance		$ 3,681	[23]	$ 3,779	3,681	[23]	3,779
Fair value		3,681	[23]	3,779	3,681	[23]	3,779	$ 3,780
Investment, Identifier [Axis]: Tex Tech Tennis, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[26]				1,830
Ending balance	[11],[27]	2,301			2,301
Fair value		2,301	[11],[27]		2,301	[11],[27]		1,830	[13],[26]
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[17]				1,600
Fair value	[17]							$ 1,600
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[18]	1,600			1,600
Fair value	[18]	1,600			1,600
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		43			43
Fair value		43			43
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate								13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					26
Ending balance	[16]	(3)			(3)
Fair value		$ (3)	[16]		$ (3)	[16]		$ 26
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 2,341
Ending balance		$ 1,938			1,938
Fair value		1,938			1,938			$ 2,341
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1,400		(310)
Amount of Interest, Fees or Dividends Credited to Income					22		22
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,950	[17]	2,160
Gross Additions					1,400		0
Gross Reductions					0		310
Ending balance		3,350	[18]	1,850	3,350	[18]	1,850
Fair value		3,350	[18]	1,850	3,350	[18]	1,850	1,950	[17]
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(2)		4
Amount of Interest, Fees or Dividends Credited to Income					3		3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		(6)
Gross Additions					2		6
Gross Reductions					2		0
Ending balance		0	[16]	0	0	[16]	0
Fair value		$ 0	[16]	$ 0	$ 0	[16]	$ 0	$ 0
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%		12.00%	12.00%		12.00%	12.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(10)		(13)
Amount of Interest, Fees or Dividends Credited to Income					191		205
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,980		2,180
Gross Additions					10		13
Gross Reductions					10		113
Ending balance		$ 1,980		$ 2,080	1,980		2,080
Fair value		$ 1,980		2,080	1,980		2,080	$ 1,980
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7],[14]							11.57%
Spread	[7],[14]							1.25%
PIK Rate	[7],[14]							7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14]				$ 5,018
Fair value	[7],[14]							$ 5,018
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8],[12],[15]	6.00%			6.00%
Spread	[8],[12],[15]	1.00%			1.00%
PIK Rate	[8],[12],[15]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[12],[15]	$ 2,691			$ 2,691
Fair value	[8],[12],[15]	$ 2,691			$ 2,691
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[8],[12],[15]	6.00%			6.00%
Spread	[8],[12],[15]	1.00%			1.00%
PIK Rate	[8],[12],[15]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[12],[15]	$ 0			$ 0
Fair value	[8],[12],[15]	$ 0			0
Investment, Identifier [Axis]: US Bank Money Market Account
Schedule of Investments [Line Items]
Total Rate								0.005%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[49]				8,347
Fair value	[49]							$ 8,347
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[13],[14]							9.82%
Spread	[13],[14]							5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 18,013
Fair value	[13],[14]							$ 18,013
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	11.42%			11.42%
Spread	[11],[12],[15]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 17,876			$ 17,876
Fair value	[11],[12],[15]	$ 17,876			$ 17,876
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	11.92%			11.92%
Spread	[11],[12],[15]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 6,945			$ 6,945
Fair value	[11],[12],[15]	$ 6,945			$ 6,945
Investment, Identifier [Axis]: UserZoom Technologies, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	12.42%			12.42%
Spread	[11],[12],[15]	7.50%			7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 3,000			$ 3,000
Fair value	[11],[12],[15]	3,000			3,000
Investment, Identifier [Axis]: VORTEQ Coil Finishers, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[17]				2,910
Ending balance	[11],[18]	2,201			2,201
Fair value		2,201	[11],[18]		2,201	[11],[18]		2,910	[13],[17]
Investment, Identifier [Axis]: VVS Holdco LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(30)		60
Amount of Interest, Fees or Dividends Credited to Income					54		75
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,990	[17],[26]	2,960
Gross Additions					0		60
Gross Reductions					30		0
Ending balance		2,960	[18],[27]	3,020	2,960	[18],[27]	3,020
Fair value		$ 2,960	[18],[27]	$ 3,020	$ 2,960	[18],[27]	$ 3,020	$ 2,990	[17],[26]
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				8.63%			8.63%
Spread		6.00%	[12],[15],[16],[27]		6.00%	[12],[15],[16],[27]		6.00%	[14],[26]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					6		11
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(5)	[14],[26]	292
Gross Additions					4		201
Gross Reductions					0		300
Ending balance		$ (1)	[12],[15],[16],[27]	$ 193	(1)	[12],[15],[16],[27]	193
Fair value		$ (1)	[12],[15],[16],[27]	$ 193	$ (1)	[12],[15],[16],[27]	$ 193	$ (5)	[14],[26]
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.50%	[27]	11.50%	11.50%	[27]	11.50%	11.50%	[26]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					686		697
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,421	[26]	7,375
Gross Additions					45		34
Gross Reductions					551		0
Ending balance		$ 6,915	[27]	$ 7,409	6,915	[27]	7,409
Fair value		6,915	[27]	$ 7,409	6,915	[27]	$ 7,409	$ 7,421	[26]
Investment, Identifier [Axis]: Vida Capital, Inc, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7]							10.38%
Spread	[7]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				4,885
Fair value	[7]							$ 4,885
Investment, Identifier [Axis]: Vistar Media, Inc., Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				2,250
Ending balance	[11]	2,341			2,341
Fair value		2,341	[11]		2,341	[11]		2,250	[13]
Investment, Identifier [Axis]: Volusion, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(1,104)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					1,104
Gross Reductions					1,104
Ending balance		0			0
Fair value		0			0			0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Fair value								0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		0			0
Fair value		0			0			0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(596)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					4,906
Gross Reductions					896
Ending balance		4,010			4,010
Fair value		4,010			4,010			0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 3
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		0			0
Fair value		$ 0			$ 0			$ 0
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.00%			10.00%			11.50%	[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[25]				$ 6,392
Ending balance		$ 900			900
Fair value		$ 900			$ 900			$ 6,392	[25]
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.00%			10.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					46
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					900
Gross Reductions					0
Ending balance		$ 900			900
Fair value		900			900			0
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					(1,366)
Amount of Unrealized Gain/(Loss)					780
Amount of Interest, Fees or Dividends Credited to Income					71
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,392
Gross Additions					0
Gross Reductions					6,392
Ending balance		0			0
Fair value		0			0			$ 6,392
Investment, Identifier [Axis]: Volusion, LLC, Unsecured Convertible Debt
Schedule of Investments [Line Items]
Total Rate								8.00%
Amount of Realized Gain/(Loss)					(175)
Amount of Unrealized Gain/(Loss)					175
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					175
Gross Reductions					175
Ending balance		0			0
Fair value		0			0			$ 0
Investment, Identifier [Axis]: Volusion, LLC, Warrants
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					1,104
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[9]				0
Gross Additions					0
Gross Reductions					0
Ending balance		0			0
Fair value		0			0			0	[9]
Investment, Identifier [Axis]: Wall Street Prep, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				530
Ending balance	[11]	580			580
Fair value		$ 580	[11]		$ 580	[11]		$ 530	[13]
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.00%	[11],[12],[15],[16]		7.00%	[11],[12],[15],[16]		7.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (7)
Ending balance	[11],[12],[15],[16]	$ (6)			(6)
Fair value		$ (6)	[11],[12],[15],[16]		$ (6)	[11],[12],[15],[16]		$ (7)	[13],[14]
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.40%	[11],[12],[15]		12.40%	[11],[12],[15]		10.74%	[13],[14]
Spread		7.00%	[11],[12],[15]		7.00%	[11],[12],[15]		7.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 5,216
Ending balance	[11],[12],[15]	$ 4,654			4,654
Fair value		$ 4,654	[11],[12],[15]		$ 4,654	[11],[12],[15]		$ 5,216	[13],[14]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.79%	[11],[12],[15],[55]		11.79%	[11],[12],[15],[55]		10.73%	[13],[14]
Spread		6.25%	[11],[12],[15],[55]		6.25%	[11],[12],[15],[55]		6.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 51
Ending balance	[11],[12],[15],[55]	$ 303			303
Fair value		$ 303	[11],[12],[15],[55]		$ 303	[11],[12],[15],[55]		$ 51	[13],[14]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.79%	[11],[12],[15]		11.79%	[11],[12],[15]		10.73%	[13],[14]
Spread		6.25%	[11],[12],[15]		6.25%	[11],[12],[15]		6.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 53
Ending balance	[11],[12],[15]	$ 53			53
Fair value		$ 53	[11],[12],[15]		$ 53	[11],[12],[15]		$ 53	[13],[14]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.79%	[11],[12],[15]		11.79%	[11],[12],[15]		10.73%	[13],[14]
Spread		6.25%	[11],[12],[15]		6.25%	[11],[12],[15]		6.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 4,141
Ending balance	[11],[12],[15]	$ 2,177			2,177
Fair value		$ 2,177	[11],[12],[15]		$ 2,177	[11],[12],[15]		$ 4,141	[13],[14]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	11.79%			11.79%
Spread	[11],[12],[15]	6.25%			6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[15]	$ 1,965			$ 1,965
Fair value	[11],[12],[15]	1,965			1,965
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				250
Ending balance	[11]	360			360
Fair value		$ 360	[11]		$ 360	[11]		$ 250	[13]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	11.39%			11.39%
Spread		6.00%	[11],[12],[15]		6.00%	[11],[12],[15]		6.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (6)
Ending balance	[11],[12],[15]	$ 333			333
Fair value		$ 333	[11],[12],[15]		$ 333	[11],[12],[15]		$ (6)	[13],[14]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.35%	[11],[12],[15]		11.35%	[11],[12],[15]		8.59%	[13],[14]
Spread		6.00%	[11],[12],[15]		6.00%	[11],[12],[15]		6.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 2,948
Ending balance	[11],[12],[15]	$ 2,955			2,955
Fair value		$ 2,955	[11],[12],[15]		$ 2,955	[11],[12],[15]		$ 2,948	[13],[14]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.00%	[11],[12],[16]		7.00%	[11],[12],[16]		7.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 0
Ending balance	[11],[12],[16]	$ 0			0
Fair value		$ 0	[11],[12],[16]		$ 0	[11],[12],[16]		$ 0	[13],[14]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[12],[15]	12.51%			12.51%
Spread		7.00%	[11],[12],[15]		7.00%	[11],[12],[15]		7.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ (43)
Ending balance	[11],[12],[15]	$ 2,583			2,583
Fair value		$ 2,583	[11],[12],[15]		$ 2,583	[11],[12],[15]		$ (43)	[13],[14]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.51%	[11],[12],[15]		12.51%	[11],[12],[15]		10.74%	[13],[14]
Spread		7.00%	[11],[12],[15]		7.00%	[11],[12],[15]		7.00%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 12,487
Ending balance	[11],[12],[15]	$ 11,625			11,625
Fair value		11,625	[11],[12],[15]		11,625	[11],[12],[15]		$ 12,487	[13],[14]
Investment, Identifier [Axis]: World Micro Holdings, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					530
Ending balance	[18]	530			530
Fair value		$ 530	[18]		$ 530	[18]		$ 530
Investment, Identifier [Axis]: World Micro Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 1,930
Ending balance		$ 1,817			1,817
Fair value		$ 1,817			$ 1,817			$ 1,930
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[15]	10.68%			10.68%
Spread		5.25%	[11],[15]		5.25%	[11],[15]		5.25%	[13]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				$ (6)
Ending balance	[11],[15]	$ 199			199
Fair value		$ 199	[11],[15]		$ 199	[11],[15]		$ (6)	[13]
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.76%	[11],[15]		10.76%	[11],[15]		10.84%	[13]
Spread		5.25%	[11],[15]		5.25%	[11],[15]		5.25%	[13]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				$ 1,192
Ending balance	[11],[15]	$ 1,194			1,194
Fair value		$ 1,194	[11],[15]		$ 1,194	[11],[15]		$ 1,192	[13]
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.66%	[11],[15]		10.66%	[11],[15]		8.63%	[13]
Spread		5.25%	[11],[15]		5.25%	[11],[15]		5.25%	[13]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13]				$ 2,354
Ending balance	[11],[15]	$ 2,358			2,358
Fair value		$ 2,358	[11],[15]		$ 2,358	[11],[15]		$ 2,354	[13]
Investment, Identifier [Axis]: YS Garments, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.93%	[8],[12],[15]		12.93%	[8],[12],[15]		9.51%	[7],[14]
Spread		7.50%	[8],[12],[15]		7.50%	[8],[12],[15]		5.50%	[7],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[14]				$ 6,064
Ending balance	[8],[12],[15]	$ 5,128			5,128
Fair value		$ 5,128	[8],[12],[15]		$ 5,128	[8],[12],[15]		$ 6,064	[7],[14]
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.67%	[11],[12],[15],[56]		12.67%	[11],[12],[15],[56]		11.67%	[13],[14]
Spread		7.25%	[11],[12],[15],[56]		7.25%	[11],[12],[15],[56]		7.25%	[13],[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14]				$ 2,388
Ending balance	[11],[12],[15],[56]	$ 2,209			2,209
Fair value		$ 2,209	[11],[12],[15],[56]		$ 2,209	[11],[12],[15],[56]		$ 2,388	[13],[14]
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.68%	[11],[12],[15],[56]		12.68%	[11],[12],[15],[56]		11.67%	[13],[14],[57]
Spread		7.25%	[11],[12],[15],[56]		7.25%	[11],[12],[15],[56]		7.25%	[13],[14],[57]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[13],[14],[57]				$ 597
Ending balance	[11],[12],[15],[56]	$ 555			555
Fair value		$ 555	[11],[12],[15],[56]		$ 555	[11],[12],[15],[56]		$ 597	[13],[14],[57]
[1] Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C — Fair Value Hierarchy for Investments—Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. [2] Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. [3] Control investments are defined by the 1940 Act as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained. [4] Control investments are defined by the 1940 Act as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained. [5] Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments. [6] Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments. [7] Middle Market portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Middle Market portfolio investments. [8] Middle Market portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Middle Market portfolio investments. [9] Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit. [10] Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit. [11] Private Loan portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Private Loan portfolio investments. [12] Index based floating interest rate is subject to contractual minimum interest rate. As noted in this schedule, 92% of the loans (based on the par amount) contain LIBOR or Term SOFR (“SOFR”) floors which range between 0.75% and 2.00%, with a weighted-average floor of 1.10%. [13] Private Loan portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Private Loan portfolio investments. [14] Index based floating interest rate is subject to contractual minimum interest rate. As noted in this schedule, 93% of the loans (based on the par amount) contain LIBOR floors which range between 0.50% and 2.00%, with a weighted-average LIBOR floor of 1.04%. [15] A majority of the variable rate loans in the Company’s investment portfolio bear interest at a rate that may be determined by reference to either LIBOR (“L”), SOFR (“SF”) or an alternate base rate (commonly based on the Federal Funds Rate or the Prime rate (“P”)), which typically resets every one, three, or six months at the borrower’s option. SOFR based contracts may include a credit spread adjustment (the “Adjustment”) that is charged in addition to the stated spread. The Adjustment is applied when the SOFR rate, plus the Adjustment, exceeds the stated floor rate, as applicable. As of September 30, 2023, SOFR based contracts in the portfolio had Adjustments ranging from 0.10% to 0.43%. [16] The position is unfunded and no interest income is being earned as of September 30, 2023. The position may earn a nominal unused facility fee on committed amounts. [17] Income producing through dividends or distributions. [18] Income producing through dividends or distributions. [19] Warrants are presented in equivalent shares/units with a strike price of $1.00 per share/unit. [20] Index based floating interest rate is subject to contractual maximum base rate of 3.00%. [21] Index based floating interest rate is subject to contractual maximum base rate of 2.50%. [22] Non-accrual and non-income producing debt investment. [23] Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable. [24] Non-accrual and non-income producing debt investment. [25] Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable. [26] Shares/Units represent ownership in a related Real Estate or HoldCo entity. [27] Shares/Units represent ownership in a related Real Estate or HoldCo entity. [28] As of September 30, 2023, borrowings under the loan facility have multiple contracts that bear interest at either SOFR+7.75% or PRIME+6.75% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents the base rate applicable to the majority of the facility and the weighted-average rate for borrowings under the facility, as of September 30, 2023. [29] Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. [30] Other Portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Other Portfolio investments. [31] Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. [32] Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated. [33] Other Portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Other Portfolio investments. [34] Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated. [35] The security has an effective contractual interest rate of 2.00% PIK + LIBOR+6.50%, Floor 1.00%,but the issuer may, in its discretion, elect to pay the PIK interest in cash. The rate presented represents the effective current yield based on actual payments received during the period. [36] As of September 30, 2023, borrowings under the loan facility bear interest at SOFR+7.00% (Floor 2.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of September 30, 2023. [37] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+6.25% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022. [38] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+6.25% (Floor 1.00%). Due to an amendment and subsequent funding during the quarter, the term loan facility has different floating rate reset dates. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022. [39] As of September 30, 2023, borrowings under the loan facility bore interest at LIBOR+8.00% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of September 30, 2023. [40] As of December 31, 2022, borrowings under the loan facility bore interest at LIBOR+8.00% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022. [41] As of September 30, 2023, borrowings under the loan facility bore interest at SOFR+8.50% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of September 30, 2023. [42] Effective yield as of September 30, 2023 was approximately 4.98% on the Fidelity Government Portfolio Class III Fund. [43] Effective yield as of September 30, 2023 was approximately 5.21% on the First American Treasury Obligations Fund Class Z. [44] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+5.75% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022. [45] As of September 30, 2023, borrowings under the loan facility bore interest at SOFR+6.75% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of September 30, 2023. [46] As of September 30, 2023, borrowings under the loan facility bear interest at SOFR+10.00%. RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of September 30, 2023. [47] As of December 31, 2022, borrowings under the loan facility bore interest at LIBOR+10.00%. RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022. [48] As of December 31, 2022, borrowings under the loan facility bore interest at LIBOR+7.25% (Floor 0.75%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022. [49] Effective yield as of December 31, 2022 was approximately 0.005% on the US Bank Money Market Account. [50] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+ 8.00% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022. [51] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+5.75% (Floor 1.00%). Delayed draw term loan facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022. [52] Warrants are presented in equivalent units with a strike price of $14.28 per unit. [53] Warrants are presented in equivalent units with a strike price of $14.28 per unit. [54] As of September 30, 2023, borrowings under the loan facility bore interest at SOFR+6.50% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of September 30, 2023. [55] As of September 30, 2023, borrowings under the loan facility bore interest at SOFR+6.25% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of September 30, 2023. [56] As of September 30, 2023, borrowings under the loan facility bear interest at SOFR+7.25% (Floor 1.00%). Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of September 30, 2023. [57] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+7.25% (Floor 1.00%). Each new draw on the delayed draw term loan facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022.