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

v3.23.2

Consolidated Schedule of Investments In and Advances to Affiliate (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended
		Jun. 30, 2023		Jun. 30, 2022	Jun. 30, 2023		Jun. 30, 2022	Dec. 31, 2022
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		$ (28,852)		$ 372	$ (25,421)		$ 625
Amount of Unrealized Gain/(Loss)		35,757		(10,749)	31,618		(7,017)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				1,068,143
Ending balance	[2]	1,086,418			1,086,418
Fair value		1,086,418	[2]		1,086,418	[2]		$ 1,068,143	[1]
Control investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		1,046		0	1,677		0
Amount of Unrealized Gain/(Loss)		(12)		1,207	(698)		1,385
Amount of Interest, Fees or Dividends Credited to Income					1,517		2,040
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					50,303	[1],[3]	46,583
Gross Additions					2,413		2,606
Gross Reductions					3,308		23
Ending balance		49,408	[2],[4]	49,166	49,408	[2],[4]	49,166
Fair value		49,408	[2],[4]	49,166	49,408	[2],[4]	49,166	50,303	[1],[3]
Control investments | Southwest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		48,820		48,456	48,820		48,456
Fair value		$ 48,820		$ 48,456	$ 48,820		$ 48,456
Net assets, percentage		8.00%		7.10%	8.00%		7.10%
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)		$ (8,823)		$ 333	$ (7,186)		$ 779
Amount of Unrealized Gain/(Loss)		16,367		415	17,688		492
Amount of Interest, Fees or Dividends Credited to Income					15,299		11,058
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					277,000	[1],[5]	234,158
Gross Additions					93,924		23,721
Gross Reductions					92,673		12,148
Ending balance		278,251	[2],[6]	245,731	278,251	[2],[6]	245,731
Fair value		278,251	[2],[6]	245,731	278,251	[2],[6]	245,731	$ 277,000	[1],[5]
Affiliate investments | Midwest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		96,977		82,781	96,977		82,781
Fair value		$ 96,977		82,781	$ 96,977		82,781
Net assets, percentage		15.80%			15.80%			12.10%
Affiliate investments | Northeast
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 40,988		22,469	$ 40,988		22,469
Fair value		$ 40,988		$ 22,469	$ 40,988		$ 22,469
Net assets, percentage		6.70%		3.30%	6.70%		3.30%
Affiliate investments | Southeast
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 29,997		$ 31,475	$ 29,997		$ 31,475
Fair value		$ 29,997		$ 31,475	$ 29,997		$ 31,475
Net assets, percentage		4.90%		4.60%	4.90%		4.60%
Affiliate investments | Southwest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 79,731		$ 70,916	$ 79,731		$ 70,916
Fair value		$ 79,731		$ 70,916	$ 79,731		$ 70,916
Net assets, percentage		13.00%		10.40%	13.00%		10.40%
Affiliate investments | West
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 30,558		$ 38,090	$ 30,558		$ 38,090
Fair value		$ 30,558		$ 38,090	$ 30,558		$ 38,090
Net assets, percentage		5.00%		5.60%	5.00%		5.60%
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]
Effective yield	[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]
Effective yield	[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]	$ 128			$ 128
Fair value	[8]	$ 128			$ 128
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield	[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]	$ 4,317			$ 4,317
Fair value	[8]	4,317			4,317
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]
Spread		5.00%	[11],[12],[13]		5.00%	[11],[12],[13]		6.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (5)
Ending balance	[11],[12],[13]	$ (22)			(22)
Fair value		$ (22)	[11],[12],[13]		$ (22)	[11],[12],[13]		$ (5)	[14],[15]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield	[14],[15]							10.20%
Spread		6.00%	[11],[12],[13],[16],[17]		6.00%	[11],[12],[13],[16],[17]		6.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 86
Ending balance	[11],[12],[13],[16],[17]	$ (39)			(39)
Fair value		$ (39)	[11],[12],[13],[16],[17]		$ (39)	[11],[12],[13],[16],[17]		$ 86	[14],[15]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		11.20%	[11],[12],[16]		11.20%	[11],[12],[16]		10.58%	[14],[15]
Spread		6.00%	[11],[12],[16]		6.00%	[11],[12],[16]		6.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 1,983
Ending balance	[11],[12],[16]	$ 3,092			3,092
Fair value		$ 3,092	[11],[12],[16]		$ 3,092	[11],[12],[16]		$ 1,983	[14],[15]
Investment, Identifier [Axis]: ADS Tactical, Inc., Secured Debt
Schedule of Investments [Line Items]
Effective yield		10.94%	[8],[12],[16]		10.94%	[8],[12],[16]		10.14%	[7],[15]
Spread		5.75%	[8],[12],[16]		5.75%	[8],[12],[16]		5.75%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]				$ 8,213
Ending balance	[8],[12],[16]	$ 8,470			8,470
Fair value		8,470	[8],[12],[16]		8,470	[8],[12],[16]		$ 8,213	[7],[15]
Investment, Identifier [Axis]: AFG Capital Group, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					1,800		$ 0
Amount of Unrealized Gain/(Loss)					(2,050)		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					2,350	[18]	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	[18]
Investment, Identifier [Axis]: AFG Capital Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield				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							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	[14]				80
Ending balance	[11],[19]	90			90
Fair value		$ 90	[11],[19]		$ 90	[11],[19]		$ 80	[14]
Investment, Identifier [Axis]: AMEREQUIP LLC., Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.40%	[11],[12],[13],[16]		7.40%	[11],[12],[13],[16]		7.40%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 0
Ending balance	[11],[12],[13],[16]	$ 0			0
Fair value		$ 0	[11],[12],[13],[16]		$ 0	[11],[12],[13],[16]		$ 0	[14],[15]
Investment, Identifier [Axis]: AMEREQUIP LLC., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.70%	[11],[12],[16]		12.70%	[11],[12],[16]		11.72%	[14],[15]
Spread		7.40%	[11],[12],[16]		7.40%	[11],[12],[16]		7.40%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 2,025
Ending balance	[11],[12],[16]	$ 2,016			2,016
Fair value		2,016	[11],[12],[16]		2,016	[11],[12],[16]		$ 2,025	[14],[15]
Investment, Identifier [Axis]: ATS Operating, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				90
Ending balance	[11]	90			90
Fair value		$ 90	[11]		$ 90	[11]		$ 90	[14]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	11.75%			11.75%
Spread		6.50%	[11],[12],[16]		6.50%	[11],[12],[16]		5.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 0
Ending balance	[11],[12],[16]	$ 100			100
Fair value		$ 100	[11],[12],[16]		$ 100	[11],[12],[16]		$ 0	[14],[15]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		10.65%	[11],[12],[16]		10.65%	[11],[12],[16]		9.32%	[14],[15]
Spread		5.50%	[11],[12],[16]		5.50%	[11],[12],[16]		5.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 914
Ending balance	[11],[12],[16]	$ 925			925
Fair value		$ 925	[11],[12],[16]		$ 925	[11],[12],[16]		$ 914	[14],[15]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		12.65%	[11],[12],[16]		12.65%	[11],[12],[16]		11.32%	[14],[15]
Spread		7.50%	[11],[12],[16]		7.50%	[11],[12],[16]		7.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 916
Ending balance	[11],[12],[16]	$ 925			925
Fair value		925	[11],[12],[16]		925	[11],[12],[16]		$ 916	[14],[15]
Investment, Identifier [Axis]: ATX Networks Corp., Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					3,178
Amount of Unrealized Gain/(Loss)					(3,290)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				3,290
Gross Additions					3,178
Gross Reductions					6,468
Ending balance		0			0
Fair value		$ 0			$ 0			$ 3,290	[7]
Investment, Identifier [Axis]: ATX Networks Corp., Secured Debt
Schedule of Investments [Line Items]
Effective yield				8.92%			8.92%	12.23%	[7],[15]
Spread		7.50%		7.50%	7.50%		7.50%	7.50%	[7],[15]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(102)		(298)
Amount of Interest, Fees or Dividends Credited to Income					856		389
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,368	[7],[15]	7,121
Gross Additions					545		229
Gross Reductions					6,913		1,222
Ending balance		$ 0		$ 6,128	0		6,128
Fair value		0		$ 6,128	0		$ 6,128	$ 6,368	[7],[15]
Investment, Identifier [Axis]: ATX Networks Corp., Unsecured Debt
Schedule of Investments [Line Items]
Effective yield				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)		122
Amount of Interest, Fees or Dividends Credited to Income					1,135		156
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,614	[7]	1,977
Gross Additions					1,135		279
Gross Reductions					3,749		0
Ending balance		0		$ 2,256	0		2,256
Fair value		0		2,256	0		2,256	$ 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	[14]				56
Ending balance	[11]	140			140
Fair value		$ 140	[11]		$ 140	[11]		$ 56	[14]
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	12.63%			12.63%
Spread		7.25%	[11],[12],[16]		7.25%	[11],[12],[16]		7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (8)
Ending balance	[11],[12],[16]	$ 198			198
Fair value		$ 198	[11],[12],[16]		$ 198	[11],[12],[16]		$ (8)	[14],[15]
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.65%	[11],[12],[16]		12.65%	[11],[12],[16]		12.17%	[14],[15]
Spread		7.25%	[11],[12],[16]		7.25%	[11],[12],[16]		7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 3,876
Ending balance	[11],[12],[16]	$ 3,347			3,347
Fair value		$ 3,347	[11],[12],[16]		$ 3,347	[11],[12],[16]		$ 3,876	[14],[15]
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[14],[15]							13.88%
Spread		7.50%	[11],[12],[13],[16]		7.50%	[11],[12],[13],[16]		9.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 4,616
Ending balance	[11],[12],[13],[16]	$ (8)			(8)
Fair value		$ (8)	[11],[12],[13],[16]		$ (8)	[11],[12],[13],[16]		$ 4,616	[14],[15]
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.85%	[11],[12],[16]		12.85%	[11],[12],[16]		13.57%	[14],[15]
Spread		7.50%	[11],[12],[16]		7.50%	[11],[12],[16]		9.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 1,379
Ending balance	[11],[12],[16]	$ 11,964			11,964
Fair value		11,964	[11],[12],[16]		11,964	[11],[12],[16]		$ 1,379	[14],[15]
Investment, Identifier [Axis]: Acumera, Inc., Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[20]	0			0
Fair value	[11],[20]	$ 0			$ 0
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		10.00%	[11],[12],[16],[21]		10.00%	[11],[12],[16],[21]		10.00%	[14],[15],[22]
Spread		7.00%	[11],[12],[16],[21]		7.00%	[11],[12],[16],[21]		6.00%	[14],[15],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[22]				$ 565
Ending balance	[11],[12],[16],[21]	$ 833			833
Fair value		$ 833	[11],[12],[16],[21]		$ 833	[11],[12],[16],[21]		$ 565	[14],[15],[22]
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		10.00%	[11],[12],[16],[21]		10.00%	[11],[12],[16],[21]		10.00%	[14],[15],[22]
Spread		7.00%	[11],[12],[16],[21]		7.00%	[11],[12],[16],[21]		7.50%	[14],[15],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[22]				$ 2,826
Ending balance	[11],[12],[16],[21]	$ 2,673			2,673
Fair value		$ 2,673	[11],[12],[16],[21]		$ 2,673	[11],[12],[16],[21]		$ 2,826	[14],[15],[22]
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[11],[12],[13]		6.00%	[11],[12],[13]		6.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (13)
Ending balance	[11],[12],[13]	$ (12)			(12)
Fair value		$ (12)	[11],[12],[13]		$ (12)	[11],[12],[13]		$ (13)	[14],[15]
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		11.43%	[11],[12]		11.43%	[11],[12]		11.12%	[14],[15]
Spread		6.00%	[11],[12]		6.00%	[11],[12]		6.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 8,271
Ending balance	[11],[12]	$ 8,229			8,229
Fair value		$ 8,229	[11],[12]		$ 8,229	[11],[12]		$ 8,271	[14],[15]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		11.79%	[11],[12],[16]		11.79%	[11],[12],[16]		10.46%	[14],[15]
Spread		6.75%	[11],[12],[16]		6.75%	[11],[12],[16]		6.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 4,148
Ending balance	[11],[12],[16]	$ 3,481			3,481
Fair value		$ 3,481	[11],[12],[16]		$ 3,481	[11],[12],[16]		$ 4,148	[14],[15]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		14.79%	[11],[12],[16],[23]		14.79%	[11],[12],[16],[23]		12.46%	[14],[15]
Spread		8.75%	[11],[12],[16],[23]		8.75%	[11],[12],[16],[23]		8.75%	[14],[15]
PIK Rate	[11],[12],[16],[23]	1.00%			1.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 4,161
Ending balance	[11],[12],[16],[23]	$ 3,025			3,025
Fair value		$ 3,025	[11],[12],[16],[23]		$ 3,025	[11],[12],[16],[23]		$ 4,161	[14],[15]
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		7.50%	[8],[23],[24]		7.50%	[8],[23],[24]		7.50%	[7],[25]
Spread		6.50%	[8],[23],[24]		6.50%	[8],[23],[24]		6.50%	[7],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[25]				$ 136
Ending balance	[8],[23],[24]	$ 109			109
Fair value		$ 109	[8],[23],[24]		$ 109	[8],[23],[24]		$ 136	[7],[25]
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		7.50%	[8],[12],[23],[24]		7.50%	[8],[12],[23],[24]		7.50%	[7],[15],[25]
Spread		6.50%	[8],[12],[23],[24]		6.50%	[8],[12],[23],[24]		6.50%	[7],[15],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15],[25]				$ 658
Ending balance	[8],[12],[23],[24]	$ 526			526
Fair value		526	[8],[12],[23],[24]		526	[8],[12],[23],[24]		$ 658	[7],[15],[25]
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Affiliate Investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					(245)		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]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Control Investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					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
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(140)
Amount of Interest, Fees or Dividends Credited to Income							1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							1,220
Gross Additions							0
Gross Reductions							140
Ending balance				1,080			1,080
Fair value				$ 1,080			$ 1,080
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Effective yield		14.13%			14.13%			14.13%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		$ 0			0
Fair value		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
Amount of Unrealized Gain/(Loss)					140
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					880
Gross Additions					140
Gross Reductions					0
Ending balance		1,020			1,020
Fair value		$ 1,020			$ 1,020			$ 880
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield				12.00%			12.00%
Spread				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							85
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							1,178
Gross Additions							13
Gross Reductions							35
Ending balance				$ 1,156			1,156
Fair value				1,156			1,156
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		10.00%	[12],[13]		10.00%	[12],[13]		10.00%	[15]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				(2)
Gross Additions					0
Gross Reductions					0
Ending balance	[12],[13]	$ (2)			(2)
Fair value		$ (2)	[12],[13]		$ (2)	[12],[13]		$ (2)	[15]
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		15.25%	[12]		15.25%	[12]		14.13%	[15]
Spread		10.00%	[12]		10.00%	[12]		10.00%	[15]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					95
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				1,135
Gross Additions					10
Gross Reductions					35
Ending balance	[12]	$ 1,110			1,110
Fair value		1,110	[12]		1,110	[12]		$ 1,135	[15]
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	[14]				0
Ending balance	[11]	0			0
Fair value		$ 0	[11]		$ 0	[11]		$ 0	[14]
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		15.25%	[11],[12],[16]		15.25%	[11],[12],[16]		13.41%	[14],[15]
Spread		7.00%	[11],[12],[16]		7.00%	[11],[12],[16]		9.00%	[14],[15]
PIK Rate	[11],[12],[16]	3.00%			3.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 2,095
Ending balance	[11],[12],[16]	$ 2,018			2,018
Fair value		$ 2,018	[11],[12],[16]		$ 2,018	[11],[12],[16]		$ 2,095	[14],[15]
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		15.23%	[11],[12],[16]		15.23%	[11],[12],[16]		13.56%	[14],[15]
Spread		7.00%	[11],[12],[16]		7.00%	[11],[12],[16]		9.00%	[14],[15]
PIK Rate	[11],[12],[16]	14.40%			14.40%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 13,313
Ending balance	[11],[12],[16]	$ 12,196			12,196
Fair value		12,196	[11],[12],[16]		12,196	[11],[12],[16]		$ 13,313	[14],[15]
Investment, Identifier [Axis]: Archer Systems, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				62
Ending balance	[11]	90			90
Fair value		$ 90	[11]		$ 90	[11]		$ 62	[14]
Investment, Identifier [Axis]: Archer Systems, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[11],[12],[13],[16]		6.00%	[11],[12],[13],[16]		6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (4)
Ending balance	[11],[12],[13],[16]	$ (4)			(4)
Fair value		$ (4)	[11],[12],[13],[16]		$ (4)	[11],[12],[13],[16]		$ (4)	[14],[15]
Investment, Identifier [Axis]: Archer Systems, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		11.39%	[11],[12],[16]		11.39%	[11],[12],[16]		10.92%	[14],[15]
Spread		6.00%	[11],[12],[16]		6.00%	[11],[12],[16]		6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 2,170
Ending balance	[11],[12],[16]	$ 2,069			2,069
Fair value		2,069	[11],[12],[16]		2,069	[11],[12],[16]		$ 2,170	[14],[15]
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]
Effective yield		15.00%			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]
Effective yield		16.17%	[12],[24]		16.17%	[12],[24]		15.12%	[15],[26]
Spread		11.00%	[12],[24]		11.00%	[12],[24]		11.00%	[15],[26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[26]				$ 200
Ending balance	[12],[24]	$ 200			200
Fair value		$ 200	[12],[24]		$ 200	[12],[24]		$ 200	[15],[26]
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 2
Schedule of Investments [Line Items]
Effective yield		16.17%	[12],[24]		16.17%	[12],[24]		15.12%	[15],[26]
Spread		11.00%	[12],[24]		11.00%	[12],[24]		11.00%	[15],[26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[26]				$ 522
Ending balance	[12],[24]	$ 550			550
Fair value		550	[12],[24]		550	[12],[24]		$ 522	[15],[26]
Investment, Identifier [Axis]: Barfly Ventures, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(93)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				1,107
Gross Additions					0
Gross Reductions					94
Ending balance	[11]	1,013			1,013
Fair value		1,013	[11]		1,013	[11]		1,107	[14]
Investment, Identifier [Axis]: Barfly Ventures, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							157
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							643
Gross Additions							157
Gross Reductions							0
Ending balance				800			800
Fair value				800			800
Investment, Identifier [Axis]: Batjer TopCo, 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							453
Gross Reductions							0
Ending balance				453			453
Fair value				$ 453			$ 453
Investment, Identifier [Axis]: Batjer TopCo, LLC, Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					225
Amount of Interest, Fees or Dividends Credited to Income					64
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18]				455
Gross Additions					225
Gross Reductions					0
Ending balance	[19]	680			680
Fair value		680	[19]		680	[19]		455	[18]
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield				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							45
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							1,252
Gross Reductions							51
Ending balance				$ 1,201			1,201
Fair value				1,201			1,201
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					1
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(1)
Gross Additions					1
Gross Reductions					0
Ending balance	[13]	0			0
Fair value		$ 0	[13]		$ 0	[13]		$ (1)
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		10.00%			10.00%			11.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					17
Amount of Interest, Fees or Dividends Credited to Income					66
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]
Effective yield	[14],[18],[27]							8.00%
PIK Rate	[14],[18],[27]							8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[18],[27]				4,561
Ending balance	[11],[19],[28]	3,940			3,940
Fair value		3,940	[11],[19],[28]		3,940	[11],[19],[28]		$ 4,561	[14],[18],[27]
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 2
Schedule of Investments [Line Items]
PIK Rate	[14],[18],[27]							16.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[18],[27]				270
Ending balance	[11],[19],[28]	310			310
Fair value		$ 310	[11],[19],[28]		310	[11],[19],[28]		$ 270	[14],[18],[27]
Investment, Identifier [Axis]: Berry Aviation, Inc., Secured Debt
Schedule of Investments [Line Items]
Effective yield	[14]							12.00%
PIK Rate	[14]							1.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				$ 190
Fair value	[14]							$ 190
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.00%	[11],[12],[13],[16]		7.00%	[11],[12],[13],[16]		1.00%	[14],[15]
PIK Rate	[14],[15]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (22)
Ending balance	[11],[12],[13],[16]	$ (20)			(20)
Fair value		$ (20)	[11],[12],[13],[16]		$ (20)	[11],[12],[13],[16]		$ (22)	[14],[15]
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.26%	[11],[12],[16]		12.26%	[11],[12],[16]		11.40%	[14],[15]
Spread		7.00%	[11],[12],[16]		7.00%	[11],[12],[16]		1.00%	[14],[15]
PIK Rate		6.00%	[11],[12],[16]		6.00%	[11],[12],[16]		6.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 7,991
Ending balance	[11],[12],[16]	$ 8,235			8,235
Fair value		8,235	[11],[12],[16]		8,235	[11],[12],[16]		$ 7,991	[14],[15]
Investment, Identifier [Axis]: Binswanger Enterprises, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				420
Ending balance	[11]	180			180
Fair value		180	[11]		180	[11]		420	[14]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[18]				4,708
Ending balance	[8]	2,194			2,194
Fair value		$ 2,194	[8]		$ 2,194	[8]		$ 4,708	[7],[18]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[8],[12]	15.75%			15.75%
Spread		7.50%	[8],[12]		7.50%	[8],[12]		8.50%	[7],[15]
PIK Rate	[8],[12]	14.75%			14.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]				$ 0
Ending balance	[8],[12]	$ 1,432			1,432
Fair value		$ 1,432	[8],[12]		$ 1,432	[8],[12]		$ 0	[7],[15]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		13.77%	[8],[12],[16]		13.77%	[8],[12],[16]		12.94%	[7],[15]
Spread		8.50%	[8],[12],[16]		8.50%	[8],[12],[16]		8.50%	[7],[15]
PIK Rate	[8],[12],[16]	12.77%			12.77%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]				$ 3,366
Ending balance	[8],[12],[16]	$ 3,442			3,442
Fair value		3,442	[8],[12],[16]		3,442	[8],[12],[16]		$ 3,366	[7],[15]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[9]				1,173
Ending balance	[8],[10]	546			546
Fair value		546	[8],[10]		546	[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	[18]				741
Ending balance		583			583
Fair value		$ 583			$ 583			$ 741	[18]
Investment, Identifier [Axis]: Boccella Precast Products LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		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],[29],[30]	360			360
Fair value	[11],[29],[30]	$ 360			$ 360
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13],[16],[29],[30]	7.00%			7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13],[16],[29],[30]	$ (17)			$ (17)
Fair value	[11],[12],[13],[16],[29],[30]	$ (17)			$ (17)
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16],[29],[30]	11.19%			11.19%
Spread	[11],[12],[16],[29],[30]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[16],[29],[30]	$ 3,972			$ 3,972
Fair value	[11],[12],[16],[29],[30]	$ 3,972			$ 3,972
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16],[29],[30]	13.19%			13.19%
Spread	[11],[12],[16],[29],[30]	8.00%			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[16],[29],[30]	$ 3,972			$ 3,972
Fair value	[11],[12],[16],[29],[30]	3,972			3,972
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)					(180)		(170)
Amount of Interest, Fees or Dividends Credited to Income					15		133
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,770	[18]	1,930
Gross Additions					0		0
Gross Reductions					180		170
Ending balance		1,590	[19]	1,760	1,590	[19]	1,760
Fair value		$ 1,590	[19]	$ 1,760	$ 1,590	[19]	$ 1,760	$ 1,770	[18]
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		15.17%	[12]	11.06%	15.17%	[12]	11.06%	14.12%	[15]
Spread		10.00%	[12]	10.00%	10.00%	[12]	10.00%	10.00%	[15]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(16)		0
Amount of Interest, Fees or Dividends Credited to Income					107		114
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,491	[15]	2,005
Gross Additions					0		5
Gross Reductions					78		62
Ending balance		$ 1,413	[12]	$ 1,948	1,413	[12]	1,948
Fair value		1,413	[12]	1,948	1,413	[12]	1,948	$ 1,491	[15]
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	[18],[31],[32],[33]				1,576
Ending balance	[30],[34],[35]	1,529			1,529
Fair value		1,529	[30],[34],[35]		1,529	[30],[34],[35]		1,576	[18],[31],[32],[33]
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund IV, LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18],[31],[32],[33]				9,082
Ending balance	[19],[30],[34],[35]	9,178			9,178
Fair value		$ 9,178	[19],[30],[34],[35]		$ 9,178	[19],[30],[34],[35]		$ 9,082	[18],[31],[32],[33]
Investment, Identifier [Axis]: Buca C, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Effective yield		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]
Effective yield		12.00%			12.00%			9.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 8,345
Ending balance		$ 8,095			8,095
Fair value		$ 8,095			$ 8,095			$ 8,345
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	10.20%			10.20%
Spread		5.00%	[11],[12],[16]		5.00%	[11],[12],[16]		5.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 0
Ending balance	[11],[12],[16]	$ 516			516
Fair value		$ 516	[11],[12],[16]		$ 516	[11],[12],[16]		$ 0	[14],[15]
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		10.20%	[11],[12],[16]		10.20%	[11],[12],[16]		8.91%	[14],[15]
Spread		5.00%	[11],[12],[16]		5.00%	[11],[12],[16]		5.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 13,255
Ending balance	[11],[12],[16]	$ 13,188			13,188
Fair value		13,188	[11],[12],[16]		13,188	[11],[12],[16]		$ 13,255	[14],[15]
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18]				379
Ending balance		379			379
Fair value		379			379			379	[18]
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]
Effective yield	[14],[15],[36]							11.99%
Spread	[14],[15],[36]							8.50%
PIK Rate	[14],[15],[36]							0.01%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[36]				$ 20,112
Fair value	[14],[15],[36]							$ 20,112
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16],[37]	13.91%			13.91%
Spread	[11],[12],[16],[37]	6.50%			6.50%
PIK Rate	[11],[12],[16],[37]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[16],[37]	$ 5,046			$ 5,046
Fair value	[11],[12],[16],[37]	$ 5,046			$ 5,046
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	13.91%			13.91%
Spread	[11],[12],[16]	6.50%			6.50%
PIK Rate	[11],[12],[16]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[16]	$ 1,585			$ 1,585
Fair value	[11],[12],[16]	$ 1,585			$ 1,585
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	13.91%			13.91%
Spread	[11],[12],[16]	6.50%			6.50%
PIK Rate	[11],[12],[16]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[16]	$ 0			$ 0
Fair value	[11],[12],[16]	$ 0			$ 0
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt 4
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	13.91%			13.91%
Spread	[11],[12],[16]	6.50%			6.50%
PIK Rate	[11],[12],[16]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[16]	$ 0			$ 0
Fair value	[11],[12],[16]	$ 0			$ 0
Investment, Identifier [Axis]: Camin Cargo Control, Inc., Secured Debt
Schedule of Investments [Line Items]
Effective yield		11.72%	[8],[12],[16]		11.72%	[8],[12],[16]		10.88%	[7],[15]
Spread		6.50%	[8],[12],[16]		6.50%	[8],[12],[16]		6.50%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]				$ 7,342
Ending balance	[8],[12],[16]	$ 7,304			7,304
Fair value		7,304	[8],[12],[16]		7,304	[8],[12],[16]		$ 7,342	[7],[15]
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]
Effective yield		11.25%			11.25%
Spread		6.00%	[12]		6.00%	[12]		6.00%	[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				$ (3)
Ending balance	[12]	$ 47			47
Fair value		$ 47	[12]		$ 47	[12]		$ (3)	[15]
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.50%			12.50%			12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 2,196
Ending balance		$ 2,203			2,203
Fair value		2,203			2,203			$ 2,196
Investment, Identifier [Axis]: CaseWorthy, Inc., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				80
Ending balance	[11]	80			80
Fair value		$ 80	[11]		$ 80	[11]		$ 80	[14]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[11],[12],[13],[16]		6.00%	[11],[12],[13],[16]		6.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (4)
Ending balance	[11],[12],[13],[16]	$ (3)			(3)
Fair value		$ (3)	[11],[12],[13],[16]		$ (3)	[11],[12],[13],[16]		$ (4)	[14],[15]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		11.54%	[11],[12],[16]		11.54%	[11],[12],[16]		10.73%	[14],[15]
Spread		6.00%	[11],[12],[16]		6.00%	[11],[12],[16]		6.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 2,574
Ending balance	[11],[12],[16]	$ 2,594			2,594
Fair value		$ 2,594	[11],[12],[16]		$ 2,594	[11],[12],[16]		$ 2,574	[14],[15]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		11.54%	[11],[12],[16]		11.54%	[11],[12],[16]		10.48%	[14],[15]
Spread		6.00%	[11],[12],[16]		6.00%	[11],[12],[16]		5.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 1,995
Ending balance	[11],[12],[16]	$ 1,995			1,995
Fair value		1,995	[11],[12],[16]		1,995	[11],[12],[16]		$ 1,995	[14],[15]
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					430		189
Amount of Interest, Fees or Dividends Credited to Income					15		15
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,170		1,460
Gross Additions					430		260
Gross Reductions					0		0
Ending balance		2,600		1,720	2,600		1,720
Fair value		$ 2,600		$ 1,720	$ 2,600		$ 1,720	$ 2,170
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield				12.00%			12.00%
Spread				10.00%			10.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							115
Amount of Interest, Fees or Dividends Credited to Income							212
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							2,216
Gross Additions							1,967
Gross Reductions							457
Ending balance				$ 3,726			3,726
Fair value				3,726			3,726
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		9.00%	[12],[13]		9.00%	[12],[13]		9.00%	[15]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				0
Gross Additions					0
Gross Reductions					0
Ending balance	[12],[13]	$ 0			0
Fair value		$ 0	[12],[13]		$ 0	[12],[13]		$ 0	[15]
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		14.25%	[12]		14.25%	[12]		13.13%	[15]
Spread		9.00%	[12]		9.00%	[12]		9.00%	[15]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					22
Amount of Interest, Fees or Dividends Credited to Income					266
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				3,731
Gross Additions					27
Gross Reductions					0
Ending balance	[12]	$ 3,758			3,758
Fair value		3,758	[12]		3,758	[12]		$ 3,731	[15]
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)					262		0
Amount of Interest, Fees or Dividends Credited to Income					373		8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,728	[18]	385
Gross Additions					262		0
Gross Reductions					0		27
Ending balance		5,990	[19]	358	5,990	[19]	358
Fair value		5,990	[19]	358	5,990	[19]	358	5,728	[18]
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)					30		(427)
Amount of Interest, Fees or Dividends Credited to Income					12		87
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					678	[18],[27]	6,030
Gross Additions					30		0
Gross Reductions					0		400
Ending balance		708	[19],[28]	5,630	708	[19],[28]	5,630
Fair value		$ 708	[19],[28]	$ 5,630	$ 708	[19],[28]	$ 5,630	$ 678	[18],[27]
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield				9.13%			9.13%
Spread				8.00%			8.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(21)
Amount of Interest, Fees or Dividends Credited to Income							224
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							4,454
Gross Additions							21
Gross Reductions							109
Ending balance				$ 4,366			4,366
Fair value				4,366			4,366
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[12],[13],[16]		6.00%	[12],[13],[16]		6.00%	[15]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					19
Amount of Interest, Fees or Dividends Credited to Income					1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				0
Gross Additions					0
Gross Reductions					0
Ending balance	[12],[13],[16]	$ 0			0
Fair value		$ 0	[12],[13],[16]		$ 0	[12],[13],[16]		$ 0	[15]
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		13.36%	[12],[16]		13.36%	[12],[16]		12.13%	[15]
Spread		8.00%	[12],[16]		8.00%	[12],[16]		8.00%	[15]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(4)
Amount of Interest, Fees or Dividends Credited to Income					275
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				4,236
Gross Additions					4
Gross Reductions					138
Ending balance	[12],[16]	$ 4,102			4,102
Fair value		$ 4,102	[12],[16]		$ 4,102	[12],[16]		$ 4,236	[15]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		11.51%	[11],[12],[16],[38]		11.51%	[11],[12],[16],[38]		10.72%	[14],[15],[39]
Spread		6.25%	[11],[12],[16],[38]		6.25%	[11],[12],[16],[38]		6.25%	[14],[15],[39]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[39]				$ 169
Ending balance	[11],[12],[16],[38]	$ 357			357
Fair value		$ 357	[11],[12],[16],[38]		$ 357	[11],[12],[16],[38]		$ 169	[14],[15],[39]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		11.39%	[11],[12],[16],[38]		11.39%	[11],[12],[16],[38]		10.71%	[14],[15],[40]
Spread		6.25%	[11],[12],[16],[38]		6.25%	[11],[12],[16],[38]		6.25%	[14],[15],[40]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[40]				$ 3,539
Ending balance	[11],[12],[16],[38]	$ 3,505			3,505
Fair value		$ 3,505	[11],[12],[16],[38]		$ 3,505	[11],[12],[16],[38]		$ 3,539	[14],[15],[40]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	11.39%			11.39%
Spread	[11],[12],[16]	6.25%			6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[16]	$ 445			$ 445
Fair value	[11],[12],[16]	445			445
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)					120		(140)
Amount of Interest, Fees or Dividends Credited to Income					62		104
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,330		3,500
Gross Additions					120		0
Gross Reductions					0		140
Ending balance		3,450	[19]	3,360	3,450	[19]	3,360
Fair value		3,450	[19]	$ 3,360	3,450	[19]	$ 3,360	3,330
Investment, Identifier [Axis]: Charps, LLC, Unsecured Debt
Schedule of Investments [Line Items]
Effective yield				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							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)					(460)		20
Amount of Interest, Fees or Dividends Credited to Income					69		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,060	[18]	132
Gross Additions					0		20
Gross Reductions					460		0
Ending balance		1,600	[19]	152	1,600	[19]	152
Fair value		1,600	[19]	152	1,600	[19]	152	2,060	[18]
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		0
Amount of Interest, Fees or Dividends Credited to Income					0		191
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					152	[27]	2,561
Gross Additions					130		0
Gross Reductions					0		1
Ending balance		282	[28]	2,560	282	[28]	2,560
Fair value		$ 282	[28]	$ 2,560	$ 282	[28]	$ 2,560	$ 152	[27]
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		11.50%		10.63%	11.50%		10.63%	13.23%	[15]
Spread				9.50%			9.50%	9.00%	[15]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							139
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 2,620	[15]	2,620
Gross Additions							0
Gross Reductions							0
Ending balance		$ 2,409		$ 2,620	2,409		2,620
Fair value		2,409		$ 2,620	2,409		$ 2,620	$ 2,620	[15]
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]
Effective yield		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							14
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 260		268
Gross Additions							0
Gross Reductions							4
Ending balance		$ 256		$ 264	256		264
Fair value		$ 256		264	$ 256		264	$ 260
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Effective yield		11.50%			11.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(21)
Amount of Interest, Fees or Dividends Credited to Income					151
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,620
Gross Additions					0
Gross Reductions					211
Ending balance		$ 2,409			2,409
Fair value		$ 2,409			$ 2,409			2,620
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		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					13
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					260
Gross Additions					0
Gross Reductions					4
Ending balance		$ 256			256
Fair value		$ 256			$ 256			$ 260
Investment, Identifier [Axis]: Clarius BIGS, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		15.00%	[11],[23],[24]		15.00%	[11],[23],[24]		15.00%	[14],[25],[26]
PIK Rate		15.00%	[11],[23],[24]		15.00%	[11],[23],[24]		15.00%	[14],[25],[26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[25],[26]				$ 19
Ending balance	[11],[23],[24]	$ 22			22
Fair value		22	[11],[23],[24]		22	[11],[23],[24]		$ 19	[14],[25],[26]
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18]				6,160
Ending balance	[19]	4,560			4,560
Fair value		$ 4,560	[19]		$ 4,560	[19]		$ 6,160	[18]
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		11.25%	[12]		11.25%	[12]		9.75%	[15]
Spread		6.00%	[12]		6.00%	[12]		6.00%	[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				$ 1,140
Ending balance	[12]	$ 1,140			1,140
Fair value		$ 1,140	[12]		$ 1,140	[12]		$ 1,140	[15]
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		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)					1,730		890
Amount of Interest, Fees or Dividends Credited to Income					362		437
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					14,550	[18],[27]	11,910
Gross Additions					1,730		890
Gross Reductions					0		0
Ending balance		16,280	[19],[28]	12,800	16,280	[19],[28]	12,800
Fair value		16,280	[19],[28]	$ 12,800	16,280	[19],[28]	$ 12,800	$ 14,550	[18],[27]
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt
Schedule of Investments [Line Items]
Effective yield				12.25%			12.25%
Spread				10.50%			10.50%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(4)
Amount of Interest, Fees or Dividends Credited to Income							463
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							7,181
Gross Additions							656
Gross Reductions							803
Ending balance				$ 7,034			7,034
Fair value				7,034			7,034
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[15]							15.38%
Spread	[15]							10.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				273
Ending balance	[13]	0			0
Fair value		0	[13]		0	[13]		$ 273	[15]
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]
Effective yield		12.50%			12.50%			15.38%	[15]
Spread	[15]							10.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				$ 6,882
Ending balance		$ 7,871			7,871
Fair value		7,871			7,871			$ 6,882	[15]
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					28
Amount of Interest, Fees or Dividends Credited to Income					79
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					7,871
Gross Reductions					0
Ending balance		7,871			7,871
Fair value		$ 7,871			$ 7,871			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)							(40)
Amount of Interest, Fees or Dividends Credited to Income							248
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,290	[18]	2,280
Gross Additions							0
Gross Reductions							40
Ending balance				2,240			2,240
Fair value				$ 2,240			$ 2,240	2,290	[18]
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
Schedule of Investments [Line Items]
Effective yield				12.00%			12.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							390
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							6,007
Gross Additions							419
Gross Reductions							158
Ending balance				$ 6,268			6,268
Fair value				6,268			6,268
Investment, Identifier [Axis]: Colonial Electric Company 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					12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					400
Gross Reductions					400
Ending balance	[13]	0			0
Fair value		$ 0	[13]		$ 0	[13]		$ 0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.00%			12.00%			12.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(77)
Amount of Interest, Fees or Dividends Credited to Income					362
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,729
Gross Additions					17
Gross Reductions					234
Ending balance		$ 5,512			5,512
Fair value		$ 5,512			$ 5,512			$ 5,729
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		12.71%	[11],[12],[37]		12.71%	[11],[12],[37]		12.56%	[14],[15],[41]
Spread		7.50%	[11],[12],[37]		7.50%	[11],[12],[37]		8.00%	[14],[15],[41]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[41]				$ 3,851
Ending balance	[11],[12],[37]	$ 3,902			3,902
Fair value		$ 3,902	[11],[12],[37]		$ 3,902	[11],[12],[37]		$ 3,851	[14],[15],[41]
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.82%	[11],[12]		12.82%	[11],[12]		12.56%	[14],[15]
Spread		7.50%	[11],[12]		7.50%	[11],[12]		8.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 14,421
Ending balance	[11],[12]	$ 14,505			14,505
Fair value		14,505	[11],[12]		14,505	[11],[12]		$ 14,421	[14],[15]
Investment, Identifier [Axis]: Construction Supply Investments, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[18]				21,165
Ending balance	[11]	24,435			24,435
Fair value		24,435	[11]		24,435	[11]		21,165	[14],[18]
Investment, Identifier [Axis]: Copper Trail Fund Investments, LP Interests (CTMH, LP)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					588	[31],[32],[33]	710
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		588	[30],[34],[35]	710	588	[30],[34],[35]	710
Fair value		588	[30],[34],[35]	710	588	[30],[34],[35]	710	588	[31],[32],[33]
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		1,816			1,816
Fair value		$ 1,816			$ 1,816			$ 1,820
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		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]
Effective yield		8.00%	[11]		8.00%	[11]		8.00%	[14]
PIK Rate		8.00%	[11]		8.00%	[11]		8.00%	[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				$ 380
Ending balance	[11]	$ 260			260
Fair value		$ 260	[11]		$ 260	[11]		$ 380	[14]
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class AA Preferred Member Units (non-voting)
Schedule of Investments [Line Items]
Effective yield		10.00%	[11],[19]		10.00%	[11],[19]		10.00%	[14],[18]
PIK Rate		10.00%	[11],[19]		10.00%	[11],[19]		10.00%	[14],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[18]				$ 1,161
Ending balance	[11],[19]	$ 1,220			1,220
Fair value		1,220	[11],[19]		1,220	[11],[19]		$ 1,161	[14],[18]
Investment, Identifier [Axis]: DTE Enterprises, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[14],[15]							7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				(1)
Fair value	[14],[15]							$ (1)
Investment, Identifier [Axis]: DTE Enterprises, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield	[14],[15]							12.24%
Spread	[14],[15]							7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				5,978
Fair value	[14],[15]							$ 5,978
Investment, Identifier [Axis]: Dalton US Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				14
Ending balance	[11]	14			14
Fair value		$ 14	[11]		$ 14	[11]		$ 14	[14]
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		13.69%	[11],[12],[16],[42]		13.69%	[11],[12],[16],[42]		11.90%	[14],[15]
Spread		8.50%	[11],[12],[16],[42]		8.50%	[11],[12],[16],[42]		8.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 78
Ending balance	[11],[12],[16],[42]	$ 261			261
Fair value		$ 261	[11],[12],[16],[42]		$ 261	[11],[12],[16],[42]		$ 78	[14],[15]
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread		8.50%	[11],[12],[13],[16]		8.50%	[11],[12],[13],[16]		8.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (5)
Ending balance	[11],[12],[13],[16]	$ (5)			(5)
Fair value		$ (5)	[11],[12],[13],[16]		$ (5)	[11],[12],[13],[16]		$ (5)	[14],[15]
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		13.69%	[11],[12],[16]		13.69%	[11],[12],[16]		12.56%	[14],[15]
Spread		8.50%	[11],[12],[16]		8.50%	[11],[12],[16]		8.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 1,020
Ending balance	[11],[12],[16]	$ 1,030			1,030
Fair value		1,030	[11],[12],[16]		1,030	[11],[12],[16]		$ 1,020	[14],[15]
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)					(40)		10
Amount of Interest, Fees or Dividends Credited to Income					0		5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					300	[18]	290
Gross Additions					0		10
Gross Reductions					40		0
Ending balance		260	[19]	300	260	[19]	300
Fair value		$ 260	[19]	$ 300	$ 260	[19]	$ 300	$ 300	[18]
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield				7.50%			7.50%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(3)
Amount of Interest, Fees or Dividends Credited to Income							49
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							852
Gross Additions							12
Gross Reductions							18
Ending balance				$ 846			846
Fair value				846			846
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		7.50%			7.50%			7.50%
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					25
Gross Additions					64
Gross Reductions					10
Ending balance		$ 79			79
Fair value		$ 79			$ 79			$ 25
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		10.00%			10.00%			7.50%
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					865
Gross Additions					11
Gross Reductions					14
Ending balance		$ 862			862
Fair value		862			862			$ 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					25		25
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,459	[18]	2,459
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		2,459	[19]	2,459	2,459	[19]	2,459
Fair value		$ 2,459	[19]	$ 2,459	$ 2,459	[19]	$ 2,459	$ 2,459	[18]
Investment, Identifier [Axis]: Digital Products Holdings LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		15.25%	[12],[16]	11.13%	15.25%	[12],[16]	11.13%	14.13%	[15]
Spread		10.00%	[12],[16]	10.00%	10.00%	[12],[16]	10.00%	10.00%	[15]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					288		238
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,878	[15]	4,186
Gross Additions					0		12
Gross Reductions					195		166
Ending balance		$ 3,683	[12],[16]	$ 4,032	3,683	[12],[16]	4,032
Fair value		3,683	[12],[16]	4,032	3,683	[12],[16]	4,032	$ 3,878	[15]
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)					280		800
Amount of Interest, Fees or Dividends Credited to Income					86		171
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,558	[18]	4,590
Gross Additions					282		800
Gross Reductions					0		0
Ending balance		5,840	[19]	5,390	5,840	[19]	5,390
Fair value		5,840	[19]	$ 5,390	5,840	[19]	$ 5,390	$ 5,558	[18]
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt
Schedule of Investments [Line Items]
Effective yield				12.13%			12.13%
Spread				11.00%			11.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(8)
Amount of Interest, Fees or Dividends Credited to Income							305
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							4,698
Gross Additions							246
Gross Reductions							153
Ending balance				$ 4,791			4,791
Fair value				4,791			4,791
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread	[15]							11.00%
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(1)
Amount of Interest, Fees or Dividends Credited to Income					3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				0
Gross Additions					1
Gross Reductions					1
Ending balance	[13]	0			0
Fair value		$ 0	[13]		$ 0	[13]		$ 0	[15]
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		13.00%			13.00%			15.13%	[15]
Spread	[15]							11.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(11)
Amount of Interest, Fees or Dividends Credited to Income					372
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				5,352
Gross Additions					11
Gross Reductions					174
Ending balance		$ 5,189			5,189
Fair value		5,189			5,189			$ 5,352	[15]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				0
Ending balance	[11]	0			0
Fair value		0	[11]		0	[11]		0	[14]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				128
Ending balance	[11]	128			128
Fair value		128	[11]		128	[11]		128	[14]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				0
Ending balance	[11]	0			0
Fair value		0	[11]		0	[11]		$ 0	[14]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[14],[15]							9.18%
Spread	[14],[15]							4.50%
PIK Rate	[14],[15]							9.18%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				1,717
Ending balance	[11]	1			1
Fair value		$ 1	[11]		$ 1	[11]		$ 1,717	[14],[15]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		9.70%	[11],[12],[16]		9.70%	[11],[12],[16]		11.18%	[14],[15]
Spread		4.50%	[11],[12],[16]		4.50%	[11],[12],[16]		6.50%	[14],[15]
PIK Rate		9.70%	[11],[12],[16]		9.70%	[11],[12],[16]		11.18%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 1,642
Ending balance	[11],[12],[16]	$ 1,798			1,798
Fair value		$ 1,798	[11],[12],[16]		$ 1,798	[11],[12],[16]		$ 1,642	[14],[15]
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	11.70%			11.70%
Spread	[11],[12],[16]	6.50%			6.50%
PIK Rate	[11],[12],[16]	11.70%			11.70%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[16]	$ 1,739			$ 1,739
Fair value	[11],[12],[16]	$ 1,739			$ 1,739
Investment, Identifier [Axis]: EPIC Y-Grade Services, LP, Secured Debt
Schedule of Investments [Line Items]
Effective yield		11.36%	[8],[12],[16]		11.36%	[8],[12],[16]		10.70%	[7],[15]
Spread		6.00%	[8],[12],[16]		6.00%	[8],[12],[16]		6.00%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]				$ 6,156
Ending balance	[8],[12],[16]	$ 6,072			6,072
Fair value		6,072	[8],[12],[16]		6,072	[8],[12],[16]		$ 6,156	[7],[15]
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	[27]				102
Ending balance	[28]	109			109
Fair value		$ 109	[28]		$ 109	[28]		$ 102	[27]
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[12],[13],[16]		6.00%	[12],[13],[16]		6.00%	[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				$ (1)
Ending balance	[12],[13],[16]	$ (1)			(1)
Fair value		$ (1)	[12],[13],[16]		$ (1)	[12],[13],[16]		$ (1)	[15]
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.00%			12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 1,192
Ending balance		$ 1,196			1,196
Fair value		$ 1,196			$ 1,196			$ 1,192
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		9.00%			9.00%			9.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 411
Ending balance		$ 410			410
Fair value		$ 410			$ 410			$ 411
Investment, Identifier [Axis]: Emerald Technologies Acquisition Co, Inc., Secured Debt
Schedule of Investments [Line Items]
Effective yield		11.66%	[8],[12],[16]		11.66%	[8],[12],[16]		10.67%	[7],[15]
Spread		6.25%	[8],[12],[16]		6.25%	[8],[12],[16]		6.25%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]				$ 2,328
Ending balance	[8],[12],[16]	$ 2,352			2,352
Fair value		$ 2,352	[8],[12],[16]		$ 2,352	[8],[12],[16]		$ 2,328	[7],[15]
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		13.75%	[11],[12]		13.75%	[11],[12]		11.68%	[14],[15]
Spread		5.50%	[11],[12]		5.50%	[11],[12]		6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 41
Ending balance	[11],[12]	$ 207			207
Fair value		$ 207	[11],[12]		$ 207	[11],[12]		$ 41	[14],[15]
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		11.76%	[11],[12],[16]		11.76%	[11],[12],[16]		10.92%	[14],[15]
Spread		6.50%	[11],[12],[16]		6.50%	[11],[12],[16]		6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 5,159
Ending balance	[11],[12],[16]	$ 5,134			5,134
Fair value		5,134	[11],[12],[16]		5,134	[11],[12],[16]		$ 5,159	[14],[15]
Investment, Identifier [Axis]: Escalent, Inc., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	174			174
Fair value	[11]	$ 174			$ 174
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13],[16]	8.00%			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13],[16]	$ (10)			$ (10)
Fair value	[11],[12],[13],[16]	$ (10)			$ (10)
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	13.34%			13.34%
Spread	[11],[12],[16]	8.00%			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[16]	$ 6,759			$ 6,759
Fair value	[11],[12],[16]	$ 6,759			$ 6,759
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		12.54%	[11],[12],[16],[28]		12.54%	[11],[12],[16],[28]		10.67%	[14],[15],[27]
Spread		7.00%	[11],[12],[16],[28]		7.00%	[11],[12],[16],[28]		7.00%	[14],[15],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[27]				$ 292
Ending balance	[11],[12],[16],[28]	$ 297			297
Fair value		$ 297	[11],[12],[16],[28]		$ 297	[11],[12],[16],[28]		$ 292	[14],[15],[27]
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.54%	[11],[12],[16],[28]		12.54%	[11],[12],[16],[28]		10.67%	[14],[15],[27]
Spread		7.00%	[11],[12],[16],[28]		7.00%	[11],[12],[16],[28]		7.00%	[14],[15],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[27]				$ 3,507
Ending balance	[11],[12],[16],[28]	$ 3,566			3,566
Fair value		$ 3,566	[11],[12],[16],[28]		$ 3,566	[11],[12],[16],[28]		$ 3,507	[14],[15],[27]
Investment, Identifier [Axis]: Fidelity Government Portfolio Class III Fund
Schedule of Investments [Line Items]
Effective yield		4.73%			4.73%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[43]	$ 10,251			$ 10,251
Fair value	[43]	$ 10,251			$ 10,251
Investment, Identifier [Axis]: First American Treasury Obligations Fund Class Z
Schedule of Investments [Line Items]
Effective yield		4.98%			4.98%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[44]	$ 7,937			$ 7,937
Fair value	[44]	7,937			7,937
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)					1,690		750
Amount of Interest, Fees or Dividends Credited to Income					513		140
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,400	[18]	2,600
Gross Additions					1,690		750
Gross Reductions					0		0
Ending balance		6,090	[19]	3,350	6,090	[19]	3,350
Fair value		$ 6,090	[19]	$ 3,350	$ 6,090	[19]	$ 3,350	$ 4,400	[18]
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield				12.00%			12.00%	10.75%	[15]
Spread		6.50%		11.00%	6.50%		11.00%	6.50%	[15]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(15)		139
Amount of Interest, Fees or Dividends Credited to Income					121		336
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,900	[15]	5,145
Gross Additions					15		155
Gross Reductions					1,915		0
Ending balance		$ 0		$ 5,300	0		5,300
Fair value		$ 0		$ 5,300	$ 0		$ 5,300	$ 1,900	[15]
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield				7.50%			7.50%	13.25%	[15]
Spread		9.00%		6.50%	9.00%		6.50%	9.00%	[15]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(123)		17
Amount of Interest, Fees or Dividends Credited to Income					478		72
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,300	[15]	1,581
Gross Additions					123		319
Gross Reductions					5,423		0
Ending balance		$ 0		$ 1,900	0		1,900
Fair value		$ 0		1,900	$ 0		1,900	$ 5,300	[15]
Investment, Identifier [Axis]: Flip Electronics LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		12.55%	[11],[16]		12.55%	[11],[16]		11.21%	[14],[15]
Spread		7.50%	[11],[16]		7.50%	[11],[16]		7.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 818
Ending balance	[11],[16]	$ 1,091			1,091
Fair value		$ 1,091	[11],[16]		$ 1,091	[11],[16]		$ 818	[14],[15]
Investment, Identifier [Axis]: Flip Electronics LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.69%	[11],[16]		12.69%	[11],[16]		12.19%	[14],[15]
Spread		7.50%	[11],[16]		7.50%	[11],[16]		7.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 12,327
Ending balance	[11],[16]	$ 12,327			12,327
Fair value		12,327	[11],[16]		12,327	[11],[16]		$ 12,327	[14],[15]
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					291		221
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,848	[18],[31],[32],[33]	7,231
Gross Additions					0		0
Gross Reductions					536		436
Ending balance		5,312	[19],[30],[34],[35]	6,795	5,312	[19],[30],[34],[35]	6,795
Fair value		5,312	[19],[30],[34],[35]	6,795	5,312	[19],[30],[34],[35]	6,795	5,848	[18],[31],[32],[33]
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)					290		0
Amount of Interest, Fees or Dividends Credited to Income					26		95
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,790		1,750
Gross Additions					290		0
Gross Reductions					0		0
Ending balance		2,080	[19]	1,750	2,080	[19]	1,750
Fair value		$ 2,080	[19]	$ 1,750	$ 2,080	[19]	$ 1,750	1,790
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		9.00%		9.00%	9.00%		9.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(9)		(10)
Amount of Interest, Fees or Dividends Credited to Income					137		175
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,836		3,136
Gross Additions					9		10
Gross Reductions					9		10
Ending balance		$ 2,836		$ 3,136	2,836		3,136
Fair value		2,836		3,136	2,836		3,136	2,836
Investment, Identifier [Axis]: GFG Group, LLC., Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18]				1,790
Fair value	[18]							$ 1,790
Investment, Identifier [Axis]: GFG Group, LLC., Secured Debt
Schedule of Investments [Line Items]
Effective yield								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					41		838
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					21,890	[18]	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	[18]
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield				9.06%			9.06%
Spread				8.00%			8.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(23)
Amount of Interest, Fees or Dividends Credited to Income							1,202
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							19,152
Gross Additions							23
Gross Reductions							23
Ending balance				$ 19,152			19,152
Fair value				19,152			19,152
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		11.17%			11.17%			10.12%
Spread		6.00%			6.00%			6.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					1
Amount of Interest, Fees or Dividends Credited to Income					31
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					330
Gross Additions					310
Gross Reductions					0
Ending balance		$ 640			640
Fair value		$ 640			$ 640			$ 330
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		13.17%			13.17%			12.12%
Spread		8.00%			8.00%			8.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(24)
Amount of Interest, Fees or Dividends Credited to Income					1,304
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					19,943
Gross Additions					26
Gross Reductions					25
Ending balance		$ 19,944			19,944
Fair value		19,944			19,944			$ 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)					4,820		(850)
Amount of Interest, Fees or Dividends Credited to Income					727		90
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					12,720	[18]	12,430
Gross Additions					4,820		0
Gross Reductions					0		850
Ending balance		17,540	[19]	11,580	17,540	[19]	11,580
Fair value		$ 17,540	[19]	$ 11,580	$ 17,540	[19]	$ 11,580	$ 12,720	[18]
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield				10.00%			10.00%
Spread				8.00%			8.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(3)
Amount of Interest, Fees or Dividends Credited to Income							275
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							5,400
Gross Additions							3
Gross Reductions							3
Ending balance				$ 5,400			5,400
Fair value				$ 5,400			$ 5,400
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		8.50%	[12],[13],[16],[21]		8.50%	[12],[13],[16],[21]		8.50%	[15]
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	[15]				0
Gross Additions					0
Gross Reductions					0
Ending balance	[12],[13],[16],[21]	$ 0			0
Fair value		$ 0	[12],[13],[16],[21]		$ 0	[12],[13],[16],[21]		$ 0	[15]
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		11.00%	[12],[16],[21]		11.00%	[12],[16],[21]		11.50%	[15]
Spread		8.00%	[12],[16],[21]		8.00%	[12],[16],[21]		8.50%	[15]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(44)
Amount of Interest, Fees or Dividends Credited to Income					925
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				16,020
Gross Additions					44
Gross Reductions					1,144
Ending balance	[12],[16],[21]	$ 14,920			14,920
Fair value		14,920	[12],[16],[21]		14,920	[12],[16],[21]		$ 16,020	[15]
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, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					950
Gross Additions					0
Gross Reductions					0
Ending balance		950			950
Fair value		$ 950			$ 950			$ 950
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield				10.60%			10.60%
Spread		9.50%	[12],[13]	9.50%	9.50%	[12],[13]	9.50%	9.50%	[15]
PIK Rate				5.25%			5.25%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[15]	64
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[12],[13]	$ 64	0	[12],[13]	64
Fair value		$ 0	[12],[13]	$ 64	$ 0	[12],[13]	$ 64	$ 0	[15]
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.50%		12.50%	12.50%		12.50%	12.50%
PIK Rate				6.25%			6.25%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		(547)
Amount of Interest, Fees or Dividends Credited to Income					38		107
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					571		2,429
Gross Additions					0		0
Gross Reductions					0		547
Ending balance		$ 571		$ 1,882	571		1,882
Fair value		$ 571		1,882	$ 571		1,882	$ 571
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		14.34%	[11],[12],[16]		14.34%	[11],[12],[16]		14.34%	[14],[15]
Spread		9.50%	[11],[12],[16]		9.50%	[11],[12],[16]		9.50%	[14],[15]
PIK Rate		14.34%	[11],[12],[16]		14.34%	[11],[12],[16]		2.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 175
Ending balance	[11],[12],[16]	$ 175			175
Fair value		$ 175	[11],[12],[16]		$ 175	[11],[12],[16]		$ 175	[14],[15]
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		14.34%	[11],[12],[16]		14.34%	[11],[12],[16]		14.34%	[14],[15]
Spread		9.50%	[11],[12],[16]		9.50%	[11],[12],[16]		9.50%	[14],[15]
PIK Rate		14.34%	[11],[12],[16]		14.34%	[11],[12],[16]		2.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 1,731
Ending balance	[11],[12],[16]	$ 1,733			1,733
Fair value		$ 1,733	[11],[12],[16]		$ 1,733	[11],[12],[16]		$ 1,731	[14],[15]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.50%	[11],[12],[13],[16]		6.50%	[11],[12],[13],[16]		6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (18)
Ending balance	[11],[12],[13],[16]	$ (16)			(16)
Fair value		$ (16)	[11],[12],[13],[16]		$ (16)	[11],[12],[13],[16]		$ (18)	[14],[15]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread		6.50%	[11],[12],[13],[16]		6.50%	[11],[12],[13],[16]		6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (18)
Ending balance	[11],[12],[13],[16]	$ (16)			(16)
Fair value		$ (16)	[11],[12],[13],[16]		$ (16)	[11],[12],[13],[16]		$ (18)	[14],[15]
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		11.60%	[11],[12],[16]		11.60%	[11],[12],[16]		10.62%	[14],[15]
Spread		6.50%	[11],[12],[16]		6.50%	[11],[12],[16]		6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 4,975
Ending balance	[11],[12],[16]	$ 4,950			4,950
Fair value		4,950	[11],[12],[16]		4,950	[11],[12],[16]		$ 4,975	[14],[15]
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 3, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		779
Amount of Unrealized Gain/(Loss)					283		(21)
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		333
Gross Reductions					508		714
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 HPP-MS, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							0
Gross Reductions							0
Ending balance				0			0
Fair value				0			0
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 MH, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					1,677		0
Amount of Unrealized Gain/(Loss)					(675)		1,408
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	[31],[32],[33]	3,971
Gross Additions					2,077		2,583
Gross Reductions					3,283		0
Ending balance		6,346	[19],[30],[34],[35]	6,554	6,346	[19],[30],[34],[35]	6,554
Fair value		6,346	[19],[30],[34],[35]	6,554	6,346	[19],[30],[34],[35]	6,554	7,552	[31],[32],[33]
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	[31],[32],[33]				4,331
Ending balance	[19],[30],[34],[35]	4,106			4,106
Fair value		4,106	[19],[30],[34],[35]		4,106	[19],[30],[34],[35]		4,331	[31],[32],[33]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18]				4,370
Ending balance	[19]	4,370			4,370
Fair value		4,370	[19]		4,370	[19]		4,370	[18]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[27]				230
Ending balance	[28]	230			230
Fair value		$ 230	[28]		$ 230	[28]		$ 230	[27]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		11.53%	[12],[16]		11.53%	[12],[16]		10.13%	[15]
Spread		6.00%	[12],[16]		6.00%	[12],[16]		6.00%	[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				$ 796
Ending balance	[12],[16]	$ 916			916
Fair value		$ 916	[12],[16]		$ 916	[12],[16]		$ 796	[15]
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.50%			12.50%			9.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 8,200
Ending balance		$ 9,058			9,058
Fair value		$ 9,058			$ 9,058			$ 8,200
Investment, Identifier [Axis]: Hybrid Promotions, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		15.76%	[11],[12],[16]		15.76%	[11],[12],[16]		12.07%	[14]
Spread		10.25%	[11],[12],[16]		10.25%	[11],[12],[16]		8.25%	[14]
PIK Rate	[11],[12],[16]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				$ 6,826
Ending balance	[11],[12],[16]	$ 6,351			6,351
Fair value		6,351	[11],[12],[16]		6,351	[11],[12],[16]		$ 6,826	[14]
Investment, Identifier [Axis]: IG Investor, LLC, Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					3,774
Gross Reductions					0
Ending balance		3,774			3,774
Fair value		3,774			3,774			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					1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					170
Gross Reductions					200
Ending balance	[13]	(30)			(30)
Fair value		$ (30)	[13]		$ (30)	[13]		0
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		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					39
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					9,148
Gross Reductions					0
Ending balance		$ 9,148			9,148
Fair value		$ 9,148			$ 9,148			$ 0
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[7],[15],[45]							10.17%
Spread		5.75%	[8],[12],[13],[16]		5.75%	[8],[12],[13],[16]		5.75%	[7],[15],[45]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15],[45]				$ 465
Ending balance	[8],[12],[13],[16]	$ 0			0
Fair value		$ 0	[8],[12],[13],[16]		$ 0	[8],[12],[13],[16]		$ 465	[7],[15],[45]
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		10.95%	[8],[12],[16]		10.95%	[8],[12],[16]		10.17%	[7],[15]
Spread		5.75%	[8],[12],[16]		5.75%	[8],[12],[16]		5.75%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]				$ 8,291
Ending balance	[8],[12],[16]	$ 8,250			8,250
Fair value		$ 8,250	[8],[12],[16]		$ 8,250	[8],[12],[16]		$ 8,291	[7],[15]
Investment, Identifier [Axis]: INW Manufacturing, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		11.29%	[8],[12],[16]		11.29%	[8],[12],[16]		10.48%	[7],[15]
Spread		5.75%	[8],[12],[16]		5.75%	[8],[12],[16]		5.75%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]				$ 5,972
Ending balance	[8],[12],[16]	$ 5,467			5,467
Fair value		$ 5,467	[8],[12],[16]		$ 5,467	[8],[12],[16]		$ 5,972	[7],[15]
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[13],[16]	9.00%			9.00%
PIK Rate	[13],[16]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[13],[16]	$ (6)			$ (6)
Fair value	[13],[16]	$ (6)			$ (6)
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[13],[16]	9.00%			9.00%
PIK Rate	[13],[16]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[13],[16]	$ (2)			$ (2)
Fair value	[13],[16]	$ (2)			$ (2)
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield	[16]	15.38%			15.38%
Spread	[16]	8.00%			8.00%
PIK Rate	[16]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[16]	$ 802			$ 802
Fair value	[16]	$ 802			$ 802
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Effective yield	[16]	17.38%			17.38%
Spread	[16]	10.00%			10.00%
PIK Rate	[16]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[16]	$ 802			$ 802
Fair value	[16]	802			802
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
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	12.24%			12.24%
Spread	[11],[12],[16]	7.00%			7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[16]	$ 10,084			$ 10,084
Fair value	[11],[12],[16]	$ 10,084			$ 10,084
Investment, Identifier [Axis]: Implus Footcare, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		14.65%	[11],[12],[16]		14.65%	[11],[12],[16]		13.98%	[14],[15]
Spread		7.75%	[11],[12],[16]		7.75%	[11],[12],[16]		7.75%	[14],[15]
PIK Rate		1.50%	[11],[12],[16]		1.50%	[11],[12],[16]		1.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 15,961
Ending balance	[11],[12],[16]	$ 15,160			15,160
Fair value		15,160	[11],[12],[16]		15,160	[11],[12],[16]		$ 15,961	[14],[15]
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					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					6,540
Gross Reductions					0
Ending balance	[11]	6,540			6,540
Fair value		6,540	[11]		6,540	[11]		0
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				0
Fair value	[14]							$ 0
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Preferred Stock (non-voting) 1
Schedule of Investments [Line Items]
Effective yield	[14]							6.00%
PIK Rate	[14]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				0
Fair value	[14]							$ 0
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Preferred Stock (non-voting) 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				0
Fair value	[14]							$ 0
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[14],[25]							6.00%
PIK Rate	[14],[25]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[25]				4,515
Fair value	[14],[25]							$ 4,515
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield	[14]							14.42%
Spread	[14]							10.00%
PIK Rate	[14]							14.42%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				459
Fair value	[14]							$ 459
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				0
Fair value	[14]							0
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[27]				1,400
Ending balance	[11],[28]	1,400			1,400
Fair value		$ 1,400	[11],[28]		$ 1,400	[11],[28]		$ 1,400	[14],[27]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Effective yield		10.00%	[11],[19],[28]		10.00%	[11],[19],[28]		10.00%	[14],[18],[27]
PIK Rate		10.00%	[11],[19],[28]		10.00%	[11],[19],[28]		10.00%	[14],[18],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[18],[27]				$ 338
Ending balance	[11],[19],[28]	$ 348			348
Fair value		$ 348	[11],[19],[28]		$ 348	[11],[19],[28]		$ 338	[14],[18],[27]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Effective yield		20.00%	[11],[19],[28]		20.00%	[11],[19],[28]		20.00%	[14],[18],[27]
PIK Rate		20.00%	[11],[19],[28]		20.00%	[11],[19],[28]		20.00%	[14],[18],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[18],[27]				$ 217
Ending balance	[11],[19],[28]	$ 229			229
Fair value		$ 229	[11],[19],[28]		$ 229	[11],[19],[28]		$ 217	[14],[18],[27]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		12.25%	[11],[12],[16]		12.25%	[11],[12],[16]		11.50%	[14],[15]
Spread		6.75%	[11],[12],[16]		6.75%	[11],[12],[16]		6.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 387
Ending balance	[11],[12],[16]	$ 543			543
Fair value		$ 543	[11],[12],[16]		$ 543	[11],[12],[16]		$ 387	[14],[15]
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.25%	[11],[12],[16]		12.25%	[11],[12],[16]		11.50%	[14],[15]
Spread		6.75%	[11],[12],[16]		6.75%	[11],[12],[16]		6.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 10,871
Ending balance	[11],[12],[16]	$ 11,494			11,494
Fair value		11,494	[11],[12],[16]		11,494	[11],[12],[16]		$ 10,871	[14],[15]
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		1,000			1,000
Fair value		$ 1,000			$ 1,000
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 4,416			$ 4,416
Fair value		$ 4,416			$ 4,416
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	10.70%			10.70%
Spread		5.50%	[11],[12],[16]		5.50%	[11],[12],[16]		5.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (48)
Ending balance	[11],[12],[16]	$ 1,830			1,830
Fair value		$ 1,830	[11],[12],[16]		$ 1,830	[11],[12],[16]		$ (48)	[14],[15]
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		10.70%	[11],[12],[16]		10.70%	[11],[12],[16]		10.23%	[14],[15]
Spread		5.50%	[11],[12],[16]		5.50%	[11],[12],[16]		5.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 10,742
Ending balance	[11],[12],[16]	$ 10,687			10,687
Fair value		10,687	[11],[12],[16]		10,687	[11],[12],[16]		$ 10,742	[14],[15]
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	288			288
Fair value	[11]	$ 288			$ 288
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	13.14%			13.14%
Spread	[11],[12],[16]	8.00%			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[16]	$ 226			$ 226
Fair value	[11],[12],[16]	$ 226			$ 226
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	13.07%			13.07%
Spread	[11],[12],[16]	8.00%			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[16]	$ 7,346			$ 7,346
Fair value	[11],[12],[16]	7,346			7,346
Investment, Identifier [Axis]: Integral Energy Services, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(530)
Amount of Interest, Fees or Dividends Credited to Income					13
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,490
Gross Additions					0
Gross Reductions					530
Ending balance	[11]	960			960
Fair value		$ 960	[11]		$ 960	[11]		1,490
Investment, Identifier [Axis]: Integral Energy Services, Secured Debt
Schedule of Investments [Line Items]
Effective yield	[11],[12]	13.04%			13.04%
Spread	[11],[12]	7.50%			7.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(265)
Amount of Interest, Fees or Dividends Credited to Income					1,208
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					18,425
Gross Additions					39
Gross Reductions					265
Ending balance	[11],[12]	$ 18,199			18,199
Fair value		18,199	[11],[12]		18,199	[11],[12]		18,425
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				0
Ending balance	[11]	0			0
Fair value		$ 0	[11]		$ 0	[11]		$ 0	[14]
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		15.34%	[11],[16]		15.34%	[11],[16]		14.22%	[14],[46]
Spread		10.00%	[11],[16]		10.00%	[11],[16]		10.00%	[14],[46]
PIK Rate	[11],[16]	15.34%			15.34%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[46]				$ 1,682
Ending balance	[11],[16]	$ 1,781			1,781
Fair value		$ 1,781	[11],[16]		$ 1,781	[11],[16]		$ 1,682	[14],[46]
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.23%	[11],[12],[16],[23]		12.23%	[11],[12],[16],[23]		12.07%	[14],[15],[25]
Spread		7.00%	[11],[12],[16],[23]		7.00%	[11],[12],[16],[23]		7.00%	[14],[15],[25]
PIK Rate		12.23%	[11],[12],[16],[23]		12.23%	[11],[12],[16],[23]		1.00%	[14],[15],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[25]				$ 1,085
Ending balance	[11],[12],[16],[23]	$ 825			825
Fair value		$ 825	[11],[12],[16],[23]		$ 825	[11],[12],[16],[23]		$ 1,085	[14],[15],[25]
Investment, Identifier [Axis]: Intermedia Holdings, Inc., Secured Debt
Schedule of Investments [Line Items]
Effective yield		11.19%	[8],[12],[16]		11.19%	[8],[12],[16]		10.38%	[7],[15]
Spread		6.00%	[8],[12],[16]		6.00%	[8],[12],[16]		6.00%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]				$ 4,342
Ending balance	[8],[12],[16]	$ 4,549			4,549
Fair value		$ 4,549	[8],[12],[16]		$ 4,549	[8],[12],[16]		$ 4,342	[7],[15]
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		12.04%	[11],[12],[47]		12.04%	[11],[12],[47]		10.14%	[14],[15]
Spread		6.50%	[11],[12],[47]		6.50%	[11],[12],[47]		6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 622
Ending balance	[11],[12],[47]	$ 605			605
Fair value		$ 605	[11],[12],[47]		$ 605	[11],[12],[47]		$ 622	[14],[15]
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.04%	[11],[12]		12.04%	[11],[12]		10.17%	[14],[15]
Spread		6.50%	[11],[12]		6.50%	[11],[12]		6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 17,148
Ending balance	[11],[12]	$ 16,429			16,429
Fair value		16,429	[11],[12]		16,429	[11],[12]		$ 17,148	[14],[15]
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					449
Ending balance		689			689
Fair value		$ 689			$ 689			$ 449
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		13.50%			13.50%			12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 1,108
Ending balance		$ 1,106			1,106
Fair value		$ 1,106			$ 1,106			$ 1,108
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		13.50%			13.50%			12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 771
Ending balance		$ 769			769
Fair value		$ 769			$ 769			$ 771
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		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]
Effective yield		13.50%			13.50%			12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 4,813
Ending balance		$ 4,804			4,804
Fair value		$ 4,804			$ 4,804			$ 4,813
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Effective yield		13.50%			13.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 2,654			$ 2,654
Fair value		2,654			2,654
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]
Effective yield		12.46%	[8],[12],[16]		12.46%	[8],[12],[16]		9.93%	[7],[15],[25]
Spread		5.50%	[8],[12],[16]		5.50%	[8],[12],[16]		7.75%	[7],[15],[25]
PIK Rate	[8],[12],[16]	3.00%			3.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15],[25]				$ 1,537
Ending balance	[8],[12],[16]	$ 2,074			2,074
Fair value		2,074	[8],[12],[16]		2,074	[8],[12],[16]		$ 1,537	[7],[15],[25]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				240
Ending balance	[11]	220			220
Fair value		$ 220	[11]		$ 220	[11]		$ 240	[14]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[11],[12],[13]		6.00%	[11],[12],[13]		6.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (11)
Ending balance	[11],[12],[13]	$ (10)			(10)
Fair value		$ (10)	[11],[12],[13]		$ (10)	[11],[12],[13]		$ (11)	[14],[15]
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		11.54%	[11],[12]		11.54%	[11],[12]		10.73%	[14],[15]
Spread		6.00%	[11],[12]		6.00%	[11],[12]		6.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 3,059
Ending balance	[11],[12]	$ 3,039			3,039
Fair value		3,039	[11],[12]		3,039	[11],[12]		$ 3,059	[14],[15]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Preferred Equity
Schedule of Investments [Line Items]
Effective yield	[14],[18]							12.00%
PIK Rate	[14],[18]							12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[18]				1,247
Ending balance	[11]	990			990
Fair value		$ 990	[11]		$ 990	[11]		$ 1,247	[14],[18]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		12.69%	[11],[12]		12.69%	[11],[12]		12.23%	[14],[15]
Spread		7.50%	[11],[12]		7.50%	[11],[12]		7.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 1,000
Ending balance	[11],[12]	$ 1,302			1,302
Fair value		$ 1,302	[11],[12]		$ 1,302	[11],[12]		$ 1,000	[14],[15]
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.69%	[11],[12]		12.69%	[11],[12]		12.23%	[14],[15]
Spread		7.50%	[11],[12]		7.50%	[11],[12]		7.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 4,126
Ending balance	[11],[12]	$ 4,074			4,074
Fair value		4,074	[11],[12]		4,074	[11],[12]		$ 4,126	[14],[15]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				0
Ending balance	[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]
Effective yield		23.35%	[8],[16],[23]		23.35%	[8],[16],[23]		18.00%	[7]
Spread	[8],[16],[23]	18.00%			18.00%
PIK Rate	[8],[16],[23]	23.35%			23.35%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				$ 1,935
Ending balance	[8],[16],[23]	$ 1,812			1,812
Fair value		$ 1,812	[8],[16],[23]		$ 1,812	[8],[16],[23]		$ 1,935	[7]
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		21.48%	[8],[16],[23]		21.48%	[8],[16],[23]		19.75%	[7],[25]
Spread	[8],[16],[23]	16.00%			16.00%
PIK Rate		21.48%	[8],[16],[23]		21.48%	[8],[16],[23]		19.75%	[7],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[25]				$ 418
Ending balance	[8],[16],[23]	$ 233			233
Fair value		233	[8],[16],[23]		233	[8],[16],[23]		$ 418	[7],[25]
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18]				620
Ending balance	[19]	730			730
Fair value		$ 730	[19]		$ 730	[19]		$ 620	[18]
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		11.50%	[12],[13]		11.50%	[12],[13]		11.50%	[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				$ 0
Ending balance	[12],[13]	$ 0			0
Fair value		$ 0	[12],[13]		$ 0	[12],[13]		$ 0	[15]
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		16.75%	[12]		16.75%	[12]		15.63%	[15]
Spread		11.50%	[12]		11.50%	[12]		11.50%	[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				$ 1,111
Ending balance	[12]	$ 1,093			1,093
Fair value		1,093	[12]		1,093	[12]		$ 1,111	[15]
Investment, Identifier [Axis]: JorVet Holdings, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18]				1,193
Ending balance	[19]	1,193			1,193
Fair value		$ 1,193	[19]		$ 1,193	[19]		$ 1,193	[18]
Investment, Identifier [Axis]: JorVet Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		12.00%			12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 2,802
Ending balance		$ 2,808			2,808
Fair value		$ 2,808			$ 2,808			$ 2,802
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		12.81%	[11],[12]		12.81%	[11],[12]		12.00%	[14],[15]
Spread		7.25%	[11],[12]		7.25%	[11],[12]		7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 1,244
Ending balance	[11],[12]	$ 1,192			1,192
Fair value		$ 1,192	[11],[12]		$ 1,192	[11],[12]		$ 1,244	[14],[15]
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.81%	[11],[12]		12.81%	[11],[12]		12.00%	[14],[15]
Spread		7.25%	[11],[12]		7.25%	[11],[12]		7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 8,778
Ending balance	[11],[12]	$ 8,544			8,544
Fair value		8,544	[11],[12]		8,544	[11],[12]		$ 8,778	[14],[15]
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)					(18)
Amount of Interest, Fees or Dividends Credited to Income					15
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18],[27]				713
Gross Additions					0
Gross Reductions					18
Ending balance	[19],[28]	695			695
Fair value		695	[19],[28]		695	[19],[28]		713	[18],[27]
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)							(20)
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							20
Ending balance				3,060			3,060
Fair value				3,060			3,060
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							14
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)					130
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					130
Gross Reductions					0
Ending balance		1,930			1,930
Fair value		$ 1,930			$ 1,930			$ 1,800
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		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					355		312
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,093		5,040
Gross Additions					54		18
Gross Reductions					0		0
Ending balance		$ 5,147		$ 5,058	5,147		5,058
Fair value		$ 5,147		$ 5,058	$ 5,147		$ 5,058	$ 5,093
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		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					44		44
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					961		970
Gross Additions					0		0
Gross Reductions					5		5
Ending balance		$ 956		$ 965	956		965
Fair value		$ 956		965	$ 956		965	$ 961
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		12.43%	[11],[12],[16]		12.43%	[11],[12],[16]		11.21%	[14],[15]
Spread		7.25%	[11],[12],[16]		7.25%	[11],[12],[16]		7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 7,945
Ending balance	[11],[12],[16]	$ 7,982			7,982
Fair value		$ 7,982	[11],[12],[16]		$ 7,982	[11],[12],[16]		$ 7,945	[14],[15]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.45%	[11],[12],[16],[48]		12.45%	[11],[12],[16],[48]		11.67%	[14],[15]
Spread		7.25%	[11],[12],[16],[48]		7.25%	[11],[12],[16],[48]		7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 6,119
Ending balance	[11],[12],[16],[48]	$ 6,148			6,148
Fair value		$ 6,148	[11],[12],[16],[48]		$ 6,148	[11],[12],[16],[48]		$ 6,119	[14],[15]
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		12.44%	[11],[12],[16]		12.44%	[11],[12],[16]		11.67%	[14],[15]
Spread		7.25%	[11],[12],[16]		7.25%	[11],[12],[16]		7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 8,820
Ending balance	[11],[12],[16]	$ 8,843			8,843
Fair value		$ 8,843	[11],[12],[16]		$ 8,843	[11],[12],[16]		$ 8,820	[14],[15]
Investment, Identifier [Axis]: LLFlex, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		15.22%	[11],[12],[16]		15.22%	[11],[12],[16]		12.74%	[14],[15]
Spread		9.00%	[11],[12],[16]		9.00%	[11],[12],[16]		9.00%	[14],[15]
PIK Rate	[11],[12],[16]	1.00%			1.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 4,833
Ending balance	[11],[12],[16]	$ 4,485			4,485
Fair value		$ 4,485	[11],[12],[16]		$ 4,485	[11],[12],[16]		$ 4,833	[14],[15]
Investment, Identifier [Axis]: Lightbox Holdings, L.P., Secured Debt
Schedule of Investments [Line Items]
Effective yield		10.50%	[8],[16]		10.50%	[8],[16]		9.73%	[7]
Spread		5.00%	[8],[16]		5.00%	[8],[16]		5.00%	[7]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7]				$ 5,622
Ending balance	[8],[16]	$ 5,650			5,650
Fair value		$ 5,650	[8],[16]		$ 5,650	[8],[16]		$ 5,622	[7]
Investment, Identifier [Axis]: Logix Acquisition Company, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		11.48%	[11],[12]		11.48%	[11],[12]		10.13%	[14],[15]
Spread		5.75%	[11],[12]		5.75%	[11],[12]		5.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 7,843
Ending balance	[11],[12]	$ 9,251			9,251
Fair value		$ 9,251	[11],[12]		$ 9,251	[11],[12]		$ 7,843	[14],[15]
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		11.20%	[8],[12],[16],[17]		11.20%	[8],[12],[16],[17]		10.42%	[7],[15]
Spread		6.00%	[8],[12],[16],[17]		6.00%	[8],[12],[16],[17]		6.00%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]				$ 8,359
Ending balance	[8],[12],[16],[17]	$ 10,244			10,244
Fair value		$ 10,244	[8],[12],[16],[17]		$ 10,244	[8],[12],[16],[17]		$ 8,359	[7],[15]
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		11.20%	[8],[12],[16]		11.20%	[8],[12],[16]		10.42%	[7],[15]
Spread		6.00%	[8],[12],[16]		6.00%	[8],[12],[16]		6.00%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]				$ 7,876
Ending balance	[8],[12],[16]	$ 7,836			7,836
Fair value		7,836	[8],[12],[16]		7,836	[8],[12],[16]		$ 7,876	[7],[15]
Investment, Identifier [Axis]: MH Corbin Holding LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							0
Gross Reductions							0
Ending balance				0			0
Fair value				$ 0			$ 0
Investment, Identifier [Axis]: MH Corbin Holding 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]: MH Corbin Holding 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					0
Gross Additions					0
Gross Reductions					0
Ending balance		0			0
Fair value		$ 0			$ 0			$ 0
Investment, Identifier [Axis]: MH Corbin Holding LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		13.00%	[24]	13.00%	13.00%	[24]	13.00%	13.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					288		(374)
Amount of Interest, Fees or Dividends Credited to Income					98		135
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,137		1,484
Gross Additions					288		2
Gross Reductions					49		414
Ending balance		$ 1,376	[24]	$ 1,072	1,376	[24]	1,072
Fair value		$ 1,376	[24]	$ 1,072	$ 1,376	[24]	$ 1,072	$ 1,137
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		12.91%	[11],[12],[42]		12.91%	[11],[12],[42]		11.79%	[14],[15],[49]
Spread		7.25%	[11],[12],[42]		7.25%	[11],[12],[42]		7.25%	[14],[15],[49]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[49]				$ 3,426
Ending balance	[11],[12],[42]	$ 2,637			2,637
Fair value		$ 2,637	[11],[12],[42]		$ 2,637	[11],[12],[42]		$ 3,426	[14],[15],[49]
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.91%	[11],[12]		12.91%	[11],[12]		11.09%	[14],[15]
Spread		7.25%	[11],[12]		7.25%	[11],[12]		7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 16,959
Ending balance	[11],[12]	$ 16,874			16,874
Fair value		16,874	[11],[12]		16,874	[11],[12]		$ 16,959	[14],[15]
Investment, Identifier [Axis]: Market Force Information, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					(4,160)
Amount of Unrealized Gain/(Loss)					4,160
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					4,160
Gross Reductions					4,160
Ending balance		0			0
Fair value		0			0			$ 0
Investment, Identifier [Axis]: Market Force Information, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield				12.00%			12.00%	12.00%	[25]
PIK Rate				12.00%			12.00%	12.00%	[25]
Amount of Realized Gain/(Loss)					(6,463)		$ 0
Amount of Unrealized Gain/(Loss)					6,060		(364)
Amount of Interest, Fees or Dividends Credited to Income					0		13
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					403	[25]	2,234
Gross Additions					6,060		13
Gross Reductions					6,463		364
Ending balance		0		$ 1,883	0		1,883
Fair value		0		1,883	0		1,883	$ 403	[25]
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					113
Ending balance	[19]	100			100
Fair value		$ 100	[19]		$ 100	[19]		$ 113
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Preferred Equity
Schedule of Investments [Line Items]
Effective yield		8.00%	[19]		8.00%	[19]		8.00%	[18]
PIK Rate		8.00%	[19]		8.00%	[19]		8.00%	[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18]				$ 441
Ending balance	[19]	$ 459			459
Fair value		459	[19]		459	[19]		$ 441	[18]
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(1)
Ending balance	[13]	(1)			(1)
Fair value		$ (1)	[13]		$ (1)	[13]		$ (1)
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.75%			12.75%			12.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 1,697
Ending balance		$ 1,702			1,702
Fair value		$ 1,702			$ 1,702			$ 1,697
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.25%	[11],[12],[13],[16]		6.25%	[11],[12],[13],[16]		6.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (7)
Ending balance	[11],[12],[13],[16]	$ (7)			(7)
Fair value		$ (7)	[11],[12],[13],[16]		$ (7)	[11],[12],[13],[16]		$ (7)	[14],[15]
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		11.44%	[11],[12],[16]		11.44%	[11],[12],[16]		9.86%	[14],[15]
Spread		6.25%	[11],[12],[16]		6.25%	[11],[12],[16]		6.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 3,034
Ending balance	[11],[12],[16]	$ 2,885			2,885
Fair value		$ 2,885	[11],[12],[16]		$ 2,885	[11],[12],[16]		$ 3,034	[14],[15]
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		11.77%	[11],[12],[16]		11.77%	[11],[12],[16]		10.66%	[14],[15]
Spread		6.50%	[11],[12],[16]		6.50%	[11],[12],[16]		6.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 18,338
Ending balance	[11],[12],[16]	$ 17,856			17,856
Fair value		17,856	[11],[12],[16]		17,856	[11],[12],[16]		$ 18,338	[14],[15]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[32],[50]				256
Ending balance	[11],[29],[30]	256			256
Fair value		$ 256	[11],[29],[30]		$ 256	[11],[29],[30]		$ 256	[14],[32],[50]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[11],[12],[29],[30]	12.54%			12.54%
Spread		7.00%	[11],[12],[29],[30]		7.00%	[11],[12],[29],[30]		7.00%	[14],[15],[32],[50]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[32],[50]				$ (19)
Ending balance	[11],[12],[29],[30]	$ 1,090			1,090
Fair value		$ 1,090	[11],[12],[29],[30]		$ 1,090	[11],[12],[29],[30]		$ (19)	[14],[15],[32],[50]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.54%	[11],[12],[29],[30]		12.54%	[11],[12],[29],[30]		11.73%	[14],[15],[32],[50]
Spread		7.00%	[11],[12],[29],[30]		7.00%	[11],[12],[29],[30]		7.00%	[14],[15],[32],[50]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[32],[50]				$ 3,139
Ending balance	[11],[12],[29],[30]	$ 3,108			3,108
Fair value		$ 3,108	[11],[12],[29],[30]		$ 3,108	[11],[12],[29],[30]		$ 3,139	[14],[15],[32],[50]
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		12.54%	[11],[12],[16],[29],[30]		12.54%	[11],[12],[16],[29],[30]		11.73%	[14],[15],[32],[50]
Spread		7.00%	[11],[12],[16],[29],[30]		7.00%	[11],[12],[16],[29],[30]		7.00%	[14],[15],[32],[50]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[32],[50]				$ 4,906
Ending balance	[11],[12],[16],[29],[30]	$ 4,906			4,906
Fair value		4,906	[11],[12],[16],[29],[30]		4,906	[11],[12],[16],[29],[30]		$ 4,906	[14],[15],[32],[50]
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1,080		1,842
Amount of Interest, Fees or Dividends Credited to Income					494		399
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,708	[18]	2,210
Gross Additions					1,080		1,843
Gross Reductions					0		0
Ending balance		6,788	[19]	4,053	6,788	[19]	4,053
Fair value		6,788	[19]	$ 4,053	6,788	[19]	$ 4,053	5,708	[18]
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield				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							77
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							1,595
Gross Additions							0
Gross Reductions							71
Ending balance				$ 1,524			1,524
Fair value				1,524			1,524
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance	[13]	0			0
Fair value		$ 0	[13]		$ 0	[13]		$ 0
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		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					72
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,436
Gross Additions					0
Gross Reductions					0
Ending balance		$ 1,436			1,436
Fair value		$ 1,436			$ 1,436			$ 1,436
Investment, Identifier [Axis]: NTM Acquisition Corp., Secured Debt
Schedule of Investments [Line Items]
Effective yield		13.64%	[8],[12],[16]		13.64%	[8],[12],[16]		9.50%	[7],[15]
Spread		7.25%	[8],[12],[16]		7.25%	[8],[12],[16]		6.25%	[7],[15]
PIK Rate		1.00%	[8],[12],[16]		1.00%	[8],[12],[16]		1.00%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]				$ 3,915
Ending balance	[8],[12],[16]	$ 3,759			3,759
Fair value		$ 3,759	[8],[12],[16]		$ 3,759	[8],[12],[16]		$ 3,915	[7],[15]
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		13.13%	[11],[12],[16],[51]		13.13%	[11],[12],[16],[51]		10.85%	[14],[15],[52]
Spread		8.00%	[11],[12],[16],[51]		8.00%	[11],[12],[16],[51]		8.00%	[14],[15],[52]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[52]				$ 1,482
Ending balance	[11],[12],[16],[51]	$ 1,120			1,120
Fair value		$ 1,120	[11],[12],[16],[51]		$ 1,120	[11],[12],[16],[51]		$ 1,482	[14],[15],[52]
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		13.19%	[11],[12],[16]		13.19%	[11],[12],[16]		12.56%	[14],[15]
Spread		8.00%	[11],[12],[16]		8.00%	[11],[12],[16]		8.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 19,620
Ending balance	[11],[12],[16]	$ 19,780			19,780
Fair value		$ 19,780	[11],[12],[16]		$ 19,780	[11],[12],[16]		$ 19,620	[14],[15]
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		20.00%	[11]		20.00%	[11]		20.00%	[14]
PIK Rate		20.00%	[11]		20.00%	[11]		20.00%	[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				$ 3,065
Ending balance	[11]	$ 3,467			3,467
Fair value		3,467	[11]		3,467	[11]		$ 3,065	[14]
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)					580		(773)
Amount of Interest, Fees or Dividends Credited to Income					38		10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					280	[18]	670
Gross Additions					580		333
Gross Reductions					0		773
Ending balance		860	[19]	230	860	[19]	230
Fair value		860	[19]	$ 230	860	[19]	$ 230	280	[18]
Investment, Identifier [Axis]: NexRev LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield				11.00%			11.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(429)
Amount of Interest, Fees or Dividends Credited to Income							310
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							3,510
Gross Additions							0
Gross Reductions							1,444
Ending balance				$ 2,066			2,066
Fair value				2,066			2,066
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance	[13]	0			0
Fair value		$ 0	[13]		$ 0	[13]		$ 0
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		10.00%			10.00%			11.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					373
Amount of Interest, Fees or Dividends Credited to Income					156
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,119
Gross Additions					386
Gross Reductions					413
Ending balance		$ 2,092			2,092
Fair value		$ 2,092			$ 2,092			$ 2,119
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.25%	[11],[12],[13],[16]		6.25%	[11],[12],[13],[16]		6.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 0
Ending balance	[11],[12],[13],[16]	$ 0			0
Fair value		$ 0	[11],[12],[13],[16]		$ 0	[11],[12],[13],[16]		$ 0	[14],[15]
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread		6.25%	[11],[12],[13],[16]		6.25%	[11],[12],[13],[16]		6.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (23)
Ending balance	[11],[12],[13],[16]	$ (17)			(17)
Fair value		$ (17)	[11],[12],[13],[16]		$ (17)	[11],[12],[13],[16]		$ (23)	[14],[15]
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		11.26%	[11],[12],[16]		11.26%	[11],[12],[16]		9.99%	[14],[15]
Spread		6.00%	[11],[12],[16]		6.00%	[11],[12],[16]		6.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 11,634
Ending balance	[11],[12],[16]	$ 10,991			10,991
Fair value		10,991	[11],[12],[16]		10,991	[11],[12],[16]		$ 11,634	[14],[15]
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(490)
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							490
Ending balance				2,890			2,890
Fair value				$ 2,890			$ 2,890
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)					90
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					90
Gross Reductions					0
Ending balance		2,100			2,100
Fair value		2,100			2,100			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]
Effective yield		11.75%	[12]	7.63%	11.75%	[12]	7.63%	10.63%	[15]
Spread		6.50%	[12]	6.50%	6.50%	[12]	6.50%	6.50%	[15]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(1)		2
Amount of Interest, Fees or Dividends Credited to Income					63		26
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,100	[15]	430
Gross Additions					1		370
Gross Reductions					1		0
Ending balance		$ 1,100	[12]	$ 800	1,100	[12]	800
Fair value		$ 1,100	[12]	$ 800	$ 1,100	[12]	$ 800	$ 1,100	[15]
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.00%		12.00%	12.00%		12.00%	12.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		7
Amount of Interest, Fees or Dividends Credited to Income					280		261
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,603		4,310
Gross Additions					3		300
Gross Reductions					0		0
Ending balance		$ 4,606		$ 4,610	4,606		4,610
Fair value		$ 4,606		4,610	4,606		4,610	$ 4,603
Investment, Identifier [Axis]: OVG Business Services, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield	[14],[15]							10.64%
Spread	[14],[15]							6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 16,368
Fair value	[14],[15]							$ 16,368
Investment, Identifier [Axis]: Obra Capital, Inc, Secured Debt
Schedule of Investments [Line Items]
Effective yield	[8],[16]	11.22%			11.22%
Spread	[8],[16]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[16]	$ 5,580			$ 5,580
Fair value	[8],[16]	5,580			5,580
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]
Effective yield		16.25%	[12]	12.06%	16.25%	[12]	12.06%	15.13%	[15]
Spread		11.00%	[12]	11.00%	11.00%	[12]	11.00%	11.00%	[15]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(7)		0
Amount of Interest, Fees or Dividends Credited to Income					113		88
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,380	[15]	1,374
Gross Additions					3		3
Gross Reductions					27		0
Ending balance		$ 1,356	[12]	$ 1,377	1,356	[12]	1,377
Fair value		1,356	[12]	1,377	1,356	[12]	1,377	$ 1,380	[15]
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)					1,200		0
Amount of Interest, Fees or Dividends Credited to Income					134		96
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,940	[18],[27]	2,500
Gross Additions					1,200		0
Gross Reductions					0		0
Ending balance		4,140	[19],[28]	2,500	4,140	[19],[28]	2,500
Fair value		$ 4,140	[19],[28]	$ 2,500	$ 4,140	[19],[28]	$ 2,500	$ 2,940	[18],[27]
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield				12.00%			12.00%
Spread				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							381
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							5,978
Gross Additions							14
Gross Reductions							100
Ending balance				$ 5,892			5,892
Fair value				5,892			5,892
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		11.00%	[12],[13]		11.00%	[12],[13]		11.00%	[15]
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	[15]				(2)
Gross Additions					2
Gross Reductions					0
Ending balance	[12],[13]	$ 0			0
Fair value		$ 0	[12],[13]		$ 0	[12],[13]		$ (2)	[15]
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		16.25%	[12]		16.25%	[12]		15.13%	[15]
Spread		11.00%	[12]		11.00%	[12]		11.00%	[15]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					72
Amount of Interest, Fees or Dividends Credited to Income					472
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				5,814
Gross Additions					87
Gross Reductions					201
Ending balance	[12]	$ 5,700			5,700
Fair value		$ 5,700	[12]		$ 5,700	[12]		$ 5,814	[15]
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[11],[12],[30]	14.50%			14.50%
Spread		6.25%	[11],[12],[30]		6.25%	[11],[12],[30]		7.25%	[15],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[32]				$ (12)
Ending balance	[11],[12],[30]	$ 156			156
Fair value		$ 156	[11],[12],[30]		$ 156	[11],[12],[30]		$ (12)	[15],[32]
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.64%	[11],[12],[16],[30]		12.64%	[11],[12],[16],[30]		11.80%	[15],[32]
Spread		7.25%	[11],[12],[16],[30]		7.25%	[11],[12],[16],[30]		7.25%	[15],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[32]				$ 1,828
Ending balance	[11],[12],[16],[30]	$ 1,748			1,748
Fair value		$ 1,748	[11],[12],[16],[30]		$ 1,748	[11],[12],[16],[30]		$ 1,828	[15],[32]
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		11.10%	[11],[12],[16]		11.10%	[11],[12],[16]		10.26%	[14],[15]
Spread		5.75%	[11],[12],[16]		5.75%	[11],[12],[16]		5.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 70
Ending balance	[11],[12],[16]	$ 29			29
Fair value		$ 29	[11],[12],[16]		$ 29	[11],[12],[16]		$ 70	[14],[15]
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		10.92%	[11],[12],[16],[38]		10.92%	[11],[12],[16],[38]		9.96%	[14],[15],[53]
Spread		5.75%	[11],[12],[16],[38]		5.75%	[11],[12],[16],[38]		5.75%	[14],[15],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[53]				$ 349
Ending balance	[11],[12],[16],[38]	$ 425			425
Fair value		$ 425	[11],[12],[16],[38]		$ 425	[11],[12],[16],[38]		$ 349	[14],[15],[53]
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		10.88%	[11],[12],[16]		10.88%	[11],[12],[16]		9.81%	[14],[15]
Spread		5.75%	[11],[12],[16]		5.75%	[11],[12],[16]		5.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 2,317
Ending balance	[11],[12],[16]	$ 2,469			2,469
Fair value		2,469	[11],[12],[16]		2,469	[11],[12],[16]		$ 2,317	[14],[15]
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],[13],[16]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13],[16]	$ (39)			$ (39)
Fair value	[11],[12],[13],[16]	$ (39)			$ (39)
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[11],[12],[13],[16]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13],[16]	$ (39)			$ (39)
Fair value	[11],[12],[13],[16]	$ (39)			$ (39)
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	11.90%			11.90%
Spread	[11],[12],[16]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[16]	$ 7,743			$ 7,743
Fair value	[11],[12],[16]	$ 7,743			$ 7,743
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	11.94%			11.94%
Spread	[11],[12],[16]	6.85%			6.85%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[16]	$ 5,827			$ 5,827
Fair value	[11],[12],[16]	$ 5,827			$ 5,827
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13],[16]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13],[16]	$ (36)			$ (36)
Fair value	[11],[12],[13],[16]	$ (36)			$ (36)
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	11.88%			11.88%
Spread	[11],[12],[16]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[16]	$ 11,760			$ 11,760
Fair value	[11],[12],[16]	11,760			11,760
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread	[14],[15]							6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				(11)
Fair value	[14],[15]							$ (11)
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 4
Schedule of Investments [Line Items]
Effective yield	[14],[15]							10.56%
Spread	[14],[15]							6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				11,685
Fair value	[14],[15]							$ 11,685
Investment, Identifier [Axis]: RM Bidder, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				13
Ending balance	[11]	12			12
Fair value		12	[11]		12	[11]		13	[14]
Investment, Identifier [Axis]: RM Bidder, LLC, Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[54]				0
Ending balance	[11],[55]	0			0
Fair value		$ 0	[11],[55]		$ 0	[11],[55]		$ 0	[14],[54]
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield	[8],[12],[16]	10.80%			10.80%
Spread	[8],[12],[16]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[12],[16]	$ 6,984			$ 6,984
Fair value	[8],[12],[16]	6,984			6,984
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield	[7],[15]							8.84%
Spread	[7],[15]							5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]				7,434
Fair value	[7],[15]							$ 7,434
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)					(970)		520
Amount of Interest, Fees or Dividends Credited to Income					0		31
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,650		0
Gross Additions					0		1,750
Gross Reductions					970		0
Ending balance		680		1,750	680		1,750
Fair value		680		$ 1,750	680		$ 1,750	1,650
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt
Schedule of Investments [Line Items]
Effective yield				12.00%			12.00%
Spread				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							254
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							3,960
Gross Reductions							26
Ending balance				$ 3,934			3,934
Fair value				3,934			3,934
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., 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					2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				(8)
Gross Additions					1
Gross Reductions					0
Ending balance	[13]	(7)			(7)
Fair value		$ (7)	[13]		$ (7)	[13]		$ (8)	[15]
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.50%			12.50%			12.50%	[15]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(22)
Amount of Interest, Fees or Dividends Credited to Income					255
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]				3,902
Gross Additions					9
Gross Reductions					97
Ending balance		$ 3,814			3,814
Fair value		$ 3,814			$ 3,814			$ 3,902	[15]
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[14],[15]							10.97%
Spread		6.50%	[11],[12],[13],[16]		6.50%	[11],[12],[13],[16]		6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 389
Ending balance	[11],[12],[13],[16]	$ 0			0
Fair value		$ 0	[11],[12],[13],[16]		$ 0	[11],[12],[13],[16]		$ 389	[14],[15]
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		11.65%	[11],[12],[16]		11.65%	[11],[12],[16]		10.32%	[14],[15]
Spread		6.50%	[11],[12],[16]		6.50%	[11],[12],[16]		6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 2,917
Ending balance	[11],[12],[16]	$ 2,917			2,917
Fair value		$ 2,917	[11],[12],[16]		$ 2,917	[11],[12],[16]		$ 2,917	[14],[15]
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		12.65%	[11],[12],[16],[47]		12.65%	[11],[12],[16],[47]		10.32%	[14],[15]
Spread		7.50%	[11],[12],[16],[47]		7.50%	[11],[12],[16],[47]		6.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 3,967
Ending balance	[11],[12],[16],[47]	$ 5,522			5,522
Fair value		$ 5,522	[11],[12],[16],[47]		$ 5,522	[11],[12],[16],[47]		$ 3,967	[14],[15]
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		13.43%	[11],[12],[16]		13.43%	[11],[12],[16]		13.02%	[14],[15]
Spread		6.00%	[11],[12],[16]		6.00%	[11],[12],[16]		6.25%	[14],[15]
PIK Rate		2.00%	[11],[12],[16]		2.00%	[11],[12],[16]		2.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 5,597
Ending balance	[11],[12],[16]	$ 5,907			5,907
Fair value		$ 5,907	[11],[12],[16]		$ 5,907	[11],[12],[16]		$ 5,597	[14],[15]
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		13.43%	[11],[12],[16]		13.43%	[11],[12],[16]		13.02%	[14],[15]
Spread		6.00%	[11],[12],[16]		6.00%	[11],[12],[16]		6.25%	[14],[15]
PIK Rate		2.00%	[11],[12],[16]		2.00%	[11],[12],[16]		2.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 8,293
Ending balance	[11],[12],[16]	$ 8,742			8,742
Fair value		8,742	[11],[12],[16]		8,742	[11],[12],[16]		$ 8,293	[14],[15]
Investment, Identifier [Axis]: SI East, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					608		420
Amount of Interest, Fees or Dividends Credited to Income					213		115
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,550	[18]	3,860
Gross Additions					710		420
Gross Reductions					0		0
Ending balance		5,260	[19]	4,280	5,260	[19]	4,280
Fair value		5,260	[19]	$ 4,280	5,260	[19]	$ 4,280	4,550	[18]
Investment, Identifier [Axis]: SI East, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield				10.25%			10.25%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							74
Amount of Interest, Fees or Dividends Credited to Income							1,164
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							21,950
Gross Additions							0
Gross Reductions							496
Ending balance				$ 21,454			21,454
Fair value				21,454			21,454
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance	[13]	0			0
Fair value		$ 0	[13]		$ 0	[13]		$ 0
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.78%			12.78%			9.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 29,929
Ending balance		$ 18,179			18,179
Fair value		$ 18,179			$ 18,179			$ 29,929
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Effective yield		12.78%			12.78%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					179
Amount of Interest, Fees or Dividends Credited to Income					100
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	[14]				183
Ending balance	[11]	121			121
Fair value		$ 121	[11]		$ 121	[11]		$ 183	[14]
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		11.68%	[11],[12],[16]		11.68%	[11],[12],[16]		11.01%	[14],[15]
Spread		6.25%	[11],[12],[16]		6.25%	[11],[12],[16]		6.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 491
Ending balance	[11],[12],[16]	$ 667			667
Fair value		$ 667	[11],[12],[16]		$ 667	[11],[12],[16]		$ 491	[14],[15]
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		11.68%	[11],[12],[16]		11.68%	[11],[12],[16]		11.01%	[14],[15]
Spread		6.25%	[11],[12],[16]		6.25%	[11],[12],[16]		6.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 1,803
Ending balance	[11],[12],[16]	$ 1,735			1,735
Fair value		$ 1,735	[11],[12],[16]		$ 1,735	[11],[12],[16]		$ 1,803	[14],[15]
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		11.68%	[11],[12],[16]		11.68%	[11],[12],[16]		11.01%	[14],[15]
Spread		6.25%	[11],[12],[16]		6.25%	[11],[12],[16]		6.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 8,974
Ending balance	[11],[12],[16]	$ 8,625			8,625
Fair value		8,625	[11],[12],[16]		8,625	[11],[12],[16]		$ 8,974	[14],[15]
Investment, Identifier [Axis]: SPAU Holdings, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				200
Ending balance	[11]	170			170
Fair value		$ 170	[11]		$ 170	[11]		$ 200	[14]
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	12.96%			12.96%
Spread		7.50%	[11],[12],[16]		7.50%	[11],[12],[16]		7.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (18)
Ending balance	[11],[12],[16]	$ 300			300
Fair value		$ 300	[11],[12],[16]		$ 300	[11],[12],[16]		$ (18)	[14],[15]
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.61%	[11],[12],[16]		12.61%	[11],[12],[16]		11.06%	[14],[15]
Spread		7.50%	[11],[12],[16]		7.50%	[11],[12],[16]		7.50%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 4,975
Ending balance	[11],[12],[16]	$ 4,950			4,950
Fair value		4,950	[11],[12],[16]		4,950	[11],[12],[16]		$ 4,975	[14],[15]
Investment, Identifier [Axis]: Savers, Inc., Secured Debt
Schedule of Investments [Line Items]
Effective yield	[7],[15]							10.34%
Spread	[7],[15]							5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]				4,149
Fair value	[7],[15]							$ 4,149
Investment, Identifier [Axis]: Slick Innovations, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18]				400
Ending balance	[19]	480			480
Fair value		$ 480	[19]		$ 480	[19]		$ 400	[18]
Investment, Identifier [Axis]: Slick Innovations, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		14.00%			14.00%			14.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 3,460
Ending balance		$ 3,260			3,260
Fair value		3,260			3,260			$ 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							25
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,490	[14]	1,250
Gross Additions							400
Gross Reductions							0
Ending balance				1,650			1,650
Fair value				$ 1,650			$ 1,650	$ 1,490	[14]
Investment, Identifier [Axis]: Sonic Systems International, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield				8.50%			8.50%	11.24%	[14],[15]
Spread				7.50%			7.50%	7.50%	[14],[15]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(272)
Amount of Interest, Fees or Dividends Credited to Income							660
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					18,425	[14],[15]	13,738
Gross Additions							4,367
Gross Reductions							272
Ending balance				$ 17,833			17,833
Fair value				17,833			17,833	$ 18,425	[14],[15]
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				92
Ending balance	[11]	85			85
Fair value		$ 85	[11]		$ 85	[11]		$ 92	[14]
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		5.25%	[11],[12],[13]		5.25%	[11],[12],[13]		5.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (6)
Ending balance	[11],[12],[13]	$ (5)			(5)
Fair value		$ (5)	[11],[12],[13]		$ (5)	[11],[12],[13]		$ (6)	[14],[15]
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		10.90%	[11],[12]		10.90%	[11],[12]		9.69%	[14],[15]
Spread		5.25%	[11],[12]		5.25%	[11],[12]		5.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 3,523
Ending balance	[11],[12]	$ 2,997			2,997
Fair value		2,997	[11],[12]		2,997	[11],[12]		$ 3,523	[14],[15]
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)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				0
Gross Additions					0
Gross Reductions					0
Ending balance	[11]	0			0
Fair value		$ 0	[11]		$ 0	[11]		$ 0	[14]
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		8.50%	[11]		8.50%	[11]		13.27%	[14]
Spread	[14]							8.50%
PIK Rate	[11]	8.50%			8.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					239
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				5,063
Gross Additions					237
Gross Reductions					0
Ending balance	[11]	$ 5,300			5,300
Fair value		5,300	[11]		5,300	[11]		$ 5,063	[14]
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)							(372)
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							55
Gross Reductions							372
Ending balance				1,828			1,828
Fair value				$ 1,828			$ 1,828	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)					(347)
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					347
Ending balance		1,573			1,573
Fair value		1,573			1,573			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					133
Gross Reductions					0
Ending balance		133			133
Fair value		$ 133			$ 133			$ 0
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		12.00%		12.00%	12.00%		12.00%	12.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		8
Amount of Interest, Fees or Dividends Credited to Income					28		263
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					460		3,754
Gross Additions					0		42
Gross Reductions					0		0
Ending balance		$ 460		$ 3,796	460		3,796
Fair value		$ 460		$ 3,796	$ 460		$ 3,796	$ 460
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.00%		12.00%	12.00%		12.00%	12.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		1
Amount of Interest, Fees or Dividends Credited to Income					232		25
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,780		259
Gross Additions					3		201
Gross Reductions					0		0
Ending balance		$ 3,783		$ 460	3,783		460
Fair value		3,783		460	3,783		460	$ 3,780
Investment, Identifier [Axis]: Tex Tech Tennis, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[27]				1,830
Ending balance	[11],[28]	2,040			2,040
Fair value		2,040	[11],[28]		2,040	[11],[28]		1,830	[14],[27]
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18]				1,600
Ending balance	[19]	1,600			1,600
Fair value		1,600	[19]		1,600	[19]		$ 1,600	[18]
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield								13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					26
Ending balance	[13]	(3)			(3)
Fair value		$ (3)	[13]		$ (3)	[13]		$ 26
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		13.00%			13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 2,341
Ending balance		$ 2,182			2,182
Fair value		2,182			2,182			$ 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)					990		(140)
Amount of Interest, Fees or Dividends Credited to Income					15		15
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,950	[18]	2,160
Gross Additions					990		0
Gross Reductions					0		140
Ending balance		2,940	[19]	2,020	2,940	[19]	2,020
Fair value		2,940	[19]	$ 2,020	2,940	[19]	$ 2,020	1,950	[18]
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield				12.00%			12.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(4)
Amount of Interest, Fees or Dividends Credited to Income							139
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							2,174
Gross Additions							15
Gross Reductions							109
Ending balance				$ 2,080			2,080
Fair value				2,080			2,080
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(1)
Amount of Interest, Fees or Dividends Credited to Income					2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					1
Gross Reductions					1
Ending balance	[13]	0			0
Fair value		$ 0	[13]		$ 0	[13]		$ 0
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.00%			12.00%			12.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(7)
Amount of Interest, Fees or Dividends Credited to Income					126
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,980
Gross Additions					7
Gross Reductions					7
Ending balance		$ 1,980			1,980
Fair value		$ 1,980			1,980			$ 1,980
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt
Schedule of Investments [Line Items]
Effective yield	[7],[15]							11.57%
Spread	[7],[15]							1.25%
PIK Rate	[7],[15]							7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]				$ 5,018
Fair value	[7],[15]							$ 5,018
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[8],[12],[16]	6.00%			6.00%
Spread	[8],[12],[16]	1.00%			1.00%
PIK Rate	[8],[12],[16]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[12],[16]	$ 2,871			$ 2,871
Fair value	[8],[12],[16]	$ 2,871			$ 2,871
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield	[8],[12],[16]	6.00%			6.00%
Spread	[8],[12],[16]	1.00%			1.00%
PIK Rate	[8],[12],[16]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[8],[12],[16]	$ 0			$ 0
Fair value	[8],[12],[16]	$ 0			$ 0
Investment, Identifier [Axis]: US Bank Money Market 5
Schedule of Investments [Line Items]
Effective yield		5.00%			5.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[29]	$ 773			$ 773
Fair value	[29]	$ 773			773
Investment, Identifier [Axis]: US Bank Money Market Account
Schedule of Investments [Line Items]
Effective yield								0.005%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[50]				$ 8,347
Fair value	[50]							$ 8,347
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		10.94%	[11],[12]		10.94%	[11],[12]		9.82%	[14],[15]
Spread		5.75%	[11],[12]		5.75%	[11],[12]		5.75%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 18,013
Ending balance	[11],[12]	$ 17,922			17,922
Fair value		$ 17,922	[11],[12]		$ 17,922	[11],[12]		$ 18,013	[14],[15]
Investment, Identifier [Axis]: UserZoom Technologies, Inc., Secured Debt
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	12.42%			12.42%
Spread	[11],[12],[16]	7.50%			7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[16]	$ 2,917			$ 2,917
Fair value	[11],[12],[16]	2,917			2,917
Investment, Identifier [Axis]: VORTEQ Coil Finishers, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[18]				2,910
Ending balance	[11],[19]	2,820			2,820
Fair value		2,820	[11],[19]		2,820	[11],[19]		2,910	[14],[18]
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		50
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,990	[18],[27]	2,960
Gross Additions					0		60
Gross Reductions					30		0
Ending balance		2,960	[19],[28]	3,020	2,960	[19],[28]	3,020
Fair value		$ 2,960	[19],[28]	$ 3,020	$ 2,960	[19],[28]	$ 3,020	$ 2,990	[18],[27]
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield				11.50%			11.50%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							470
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							7,667
Gross Additions							24
Gross Reductions							300
Ending balance				$ 7,391			7,391
Fair value				$ 7,391			$ 7,391
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[12],[13],[28]		6.00%	[12],[13],[28]		6.00%	[15],[27]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[27]				(5)
Gross Additions					3
Gross Reductions					0
Ending balance	[12],[13],[28]	$ (2)			(2)
Fair value		$ (2)	[12],[13],[28]		$ (2)	[12],[13],[28]		$ (5)	[15],[27]
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		11.50%	[28]		11.50%	[28]		11.50%	[27]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					462
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[27]				7,421
Gross Additions					29
Gross Reductions					311
Ending balance	[28]	$ 7,139			7,139
Fair value		7,139	[28]		7,139	[28]		$ 7,421	[27]
Investment, Identifier [Axis]: Vida Capital, Inc, Secured Debt
Schedule of Investments [Line Items]
Effective yield	[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	[14]				2,250
Ending balance	[11]	2,340			2,340
Fair value		2,340	[11]		2,340	[11]		2,250	[14]
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)					(306)
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					306
Ending balance		4,600			4,600
Fair value		4,600			4,600			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]
Effective yield		10.00%			10.00%			11.50%	[26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[26]				$ 6,392
Ending balance		$ 900			900
Fair value		$ 900			$ 900			$ 6,392	[26]
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		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					23
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]
Effective yield								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	[14]				530
Ending balance	[11]	530			530
Fair value		$ 530	[11]		$ 530	[11]		$ 530	[14]
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.00%	[11],[12],[13],[16]		7.00%	[11],[12],[13],[16]		7.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (7)
Ending balance	[11],[12],[13],[16]	$ (6)			(6)
Fair value		$ (6)	[11],[12],[13],[16]		$ (6)	[11],[12],[13],[16]		$ (7)	[14],[15]
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.19%	[11],[12],[16]		12.19%	[11],[12],[16]		10.74%	[14],[15]
Spread		7.00%	[11],[12],[16]		7.00%	[11],[12],[16]		7.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 5,216
Ending balance	[11],[12],[16]	$ 4,684			4,684
Fair value		$ 4,684	[11],[12],[16]		$ 4,684	[11],[12],[16]		$ 5,216	[14],[15]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		11.64%	[11],[12],[16],[56]		11.64%	[11],[12],[16],[56]		10.73%	[14],[15]
Spread		6.25%	[11],[12],[16],[56]		6.25%	[11],[12],[16],[56]		6.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 51
Ending balance	[11],[12],[16],[56]	$ 234			234
Fair value		$ 234	[11],[12],[16],[56]		$ 234	[11],[12],[16],[56]		$ 51	[14],[15]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		11.64%	[11],[12],[16]		11.64%	[11],[12],[16]		10.73%	[14],[15]
Spread		6.25%	[11],[12],[16]		6.25%	[11],[12],[16]		6.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 53
Ending balance	[11],[12],[16]	$ 53			53
Fair value		$ 53	[11],[12],[16]		$ 53	[11],[12],[16]		$ 53	[14],[15]
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		11.64%	[11],[12],[16]		11.64%	[11],[12],[16]		10.73%	[14],[15]
Spread		6.25%	[11],[12],[16]		6.25%	[11],[12],[16]		6.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 4,141
Ending balance	[11],[12],[16]	$ 4,121			4,121
Fair value		4,121	[11],[12],[16]		4,121	[11],[12],[16]		$ 4,141	[14],[15]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				250
Ending balance	[11]	310			310
Fair value		$ 310	[11]		$ 310	[11]		$ 250	[14]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[11],[12],[13],[16]		6.00%	[11],[12],[13],[16]		6.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (6)
Ending balance	[11],[12],[13],[16]	$ (5)			(5)
Fair value		$ (5)	[11],[12],[13],[16]		$ (5)	[11],[12],[13],[16]		$ (6)	[14],[15]
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		10.79%	[11],[12],[16]		10.79%	[11],[12],[16]		8.59%	[14],[15]
Spread		6.00%	[11],[12],[16]		6.00%	[11],[12],[16]		6.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 2,948
Ending balance	[11],[12],[16]	$ 2,963			2,963
Fair value		$ 2,963	[11],[12],[16]		$ 2,963	[11],[12],[16]		$ 2,948	[14],[15]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.00%	[11],[12],[13]		7.00%	[11],[12],[13]		7.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 0
Ending balance	[11],[12],[13]	$ 0			0
Fair value		$ 0	[11],[12],[13]		$ 0	[11],[12],[13]		$ 0	[14],[15]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield	[11],[12],[16]	12.55%			12.55%
Spread		7.00%	[11],[12],[16]		7.00%	[11],[12],[16]		7.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ (43)
Ending balance	[11],[12],[16]	$ 2,519			2,519
Fair value		$ 2,519	[11],[12],[16]		$ 2,519	[11],[12],[16]		$ (43)	[14],[15]
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		12.17%	[11],[12],[16]		12.17%	[11],[12],[16]		10.74%	[14],[15]
Spread		7.00%	[11],[12],[16]		7.00%	[11],[12],[16]		7.00%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 12,487
Ending balance	[11],[12],[16]	$ 11,625			11,625
Fair value		11,625	[11],[12],[16]		11,625	[11],[12],[16]		$ 12,487	[14],[15]
Investment, Identifier [Axis]: World Micro Holdings, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					530
Ending balance	[19]	530			530
Fair value		$ 530	[19]		$ 530	[19]		$ 530
Investment, Identifier [Axis]: World Micro Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		13.00%			13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 1,930
Ending balance		$ 1,934			1,934
Fair value		$ 1,934			$ 1,934			$ 1,930
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Effective yield	[11],[16]	10.41%			10.41%
Spread		5.25%	[11],[16]		5.25%	[11],[16]		5.25%	[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				$ (6)
Ending balance	[11],[16]	$ 158			158
Fair value		$ 158	[11],[16]		$ 158	[11],[16]		$ (6)	[14]
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		10.58%	[11],[16]		10.58%	[11],[16]		10.84%	[14]
Spread		5.25%	[11],[16]		5.25%	[11],[16]		5.25%	[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				$ 1,192
Ending balance	[11],[16]	$ 1,197			1,197
Fair value		$ 1,197	[11],[16]		$ 1,197	[11],[16]		$ 1,192	[14]
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Effective yield		10.35%	[11],[16]		10.35%	[11],[16]		8.63%	[14]
Spread		5.25%	[11],[16]		5.25%	[11],[16]		5.25%	[14]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14]				$ 2,354
Ending balance	[11],[16]	$ 2,364			2,364
Fair value		$ 2,364	[11],[16]		$ 2,364	[11],[16]		$ 2,354	[14]
Investment, Identifier [Axis]: YS Garments, LLC, Secured Debt
Schedule of Investments [Line Items]
Effective yield		12.59%	[8],[12],[16]		12.59%	[8],[12],[16]		9.51%	[7],[15]
Spread		7.50%	[8],[12],[16]		7.50%	[8],[12],[16]		5.50%	[7],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[15]				$ 6,064
Ending balance	[8],[12],[16]	$ 5,742			5,742
Fair value		$ 5,742	[8],[12],[16]		$ 5,742	[8],[12],[16]		$ 6,064	[7],[15]
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Effective yield		12.50%	[11],[12],[16],[48]		12.50%	[11],[12],[16],[48]		11.67%	[14],[15]
Spread		7.25%	[11],[12],[16],[48]		7.25%	[11],[12],[16],[48]		7.25%	[14],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15]				$ 2,388
Ending balance	[11],[12],[16],[48]	$ 2,356			2,356
Fair value		$ 2,356	[11],[12],[16],[48]		$ 2,356	[11],[12],[16],[48]		$ 2,388	[14],[15]
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Effective yield		12.46%	[11],[12],[16],[48]		12.46%	[11],[12],[16],[48]		11.67%	[14],[15],[57]
Spread		7.25%	[11],[12],[16],[48]		7.25%	[11],[12],[16],[48]		7.25%	[14],[15],[57]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[57]				$ 597
Ending balance	[11],[12],[16],[48]	$ 588			588
Fair value		$ 588	[11],[12],[16],[48]		$ 588	[11],[12],[16],[48]		$ 597	[14],[15],[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 1.07%. [13] The position is unfunded and no interest income is being earned as of June 30, 2023. The position may earn a nominal unused facility fee on committed amounts. [14] Private Loan portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Private Loan portfolio investments. [15] 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%. [16] 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 June 30, 2023, SOFR based contracts in the portfolio had Adjustments ranging from 0.10% to 0.26%. [17] As of June 30, 2023, borrowings under the loan facility bear interest at SOFR+6.00% (Floor 1.00%). Each new draw of funding 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 June 30, 2023. [18] Income producing through dividends or distributions. [19] Income producing through dividends or distributions. [20] Warrants are presented in equivalent shares/units with a strike price of $1.00 per share/unit. [21] Index based floating interest rate is subject to contractual maximum base rate of 3.00%. [22] Index based floating interest rate is subject to contractual maximum base rate of 2.50%. [23] Non-accrual and non-income producing investment. [24] Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable. [25] Non-accrual and non-income producing investment. [26] Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable. [27] Shares/Units represent ownership in a related Real Estate or HoldCo entity. [28] Shares/Units represent ownership in a related Real Estate or HoldCo entity. [29] Effective yield as of June 30, 2023 was approximately 5.00% on the US Bank Money Market Account. [30] 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. [31] Other Portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Other Portfolio investments. [32] 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. [33] Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated. [34] Other Portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Other Portfolio investments. [35] Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated. [36] 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. [37] As of June 30, 2023, borrowings under the loan facility bore interest at LIBOR+7.50% (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 June 30, 2023. [38] As of June 30, 2023, borrowings under the loan facility bear interest at SOFR+6.25% (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 June 30, 2023. [39] 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. [40] 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. [41] 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. [42] As of June 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 June 30, 2023. [43] Effective yield as of June 30, 2023 was approximately 4.73% on the Fidelity Government Portfolio Class III Fund. [44] Effective yield as of June 30, 2023 was approximately 4.98% on the First American Treasury Obligations Fund Class Z. [45] 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. [46] 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. [47] As of June 30, 2023, borrowings under the loan facility bore interest at SOFR+6.50% (Floor 1.50%) and SOFR+8.50% (Floor 1.50%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The spread and rate presented represents a weighted-average rate for borrowings under the facility, as of June 30, 2023. [48] As of June 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 June 30, 2023. [49] 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. [50] Effective yield as of December 31, 2022 was approximately 0.005% on the US Bank Money Market Account. [51] As of June 30, 2023, borrowings under the loan facility bore interest at SOFR+8.00% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of June 30, 2023. [52] 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. [53] 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. [54] Warrants are presented in equivalent units with a strike price of $14.28 per unit. [55] Warrants are presented in equivalent units with a strike price of $14.28 per unit. [56] As of June 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 June 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.