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

v3.25.2

Consolidated Schedule of Investments In and Advances to Affiliates (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended
		Jun. 30, 2025		Jun. 30, 2024	Jun. 30, 2025		Jun. 30, 2024	Dec. 31, 2024
Schedule of Investments [Line Items]
PIK Rate		12.95%			12.95%
Amount of Realized Gain/(Loss)		$ 4,779		$ 314	$ (16,287)		$ (1,570)
Amount of Unrealized Gain/(Loss)		(3,904)		6,226	14,879		5,093
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				1,177,507
Ending balance	[2]	1,245,563			1,245,563
Control investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		5,296		47	5,305		57
Amount of Unrealized Gain/(Loss)		(5,068)		3,297	(5,901)		3,719
Amount of Interest, Fees or Dividends Credited to Income					2,956		1,824
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					69,878	[1],[3]	53,644
Gross Additions					4,652		4,190
Gross Reductions					12,918		992
Ending balance		61,612	[2],[3]	56,842	61,612	[2],[3]	56,842
Affiliate investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					2		0
Amount of Unrealized Gain/(Loss)		(69)		1,003	2,767		984
Amount of Interest, Fees or Dividends Credited to Income					18,952		15,171
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					351,360	[1],[4]	291,279
Gross Additions					48,733		52,793
Gross Reductions					24,183		41,313
Ending balance		$ 383,824	[2],[4]	$ 302,759	$ 383,824	[2],[4]	$ 302,759
Investment, Identifier [Axis]: Fidelity Government Portfolio Fund Class III
Schedule of Investments [Line Items]
Total Rate		3.98%			3.98%			4.13%
Investment, Identifier [Axis]: AAC Holdings, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 0
Ending balance	[2]	$ 0			0
Investment, Identifier [Axis]: AAC Holdings, Inc., Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 2,810			$ 2,810
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		18.00%			18.00%			18.00%
PIK Rate		18.00%	[5]		18.00%	[5]		18.00%	[6]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 209
Ending balance	[2]	$ 268			$ 268
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%	[7]		10.00%	[7]		18.00%
PIK Rate		10.00%	[5],[7]		10.00%	[5],[7]		18.00%	[6]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 5,975
Ending balance	[2],[7]	$ 1,070			$ 1,070
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[7]	12.00%			12.00%
PIK Rate	[5],[7]	12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[7]	$ 1,070			$ 1,070
Investment, Identifier [Axis]: AAC Holdings, Inc., Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[8]				0
Ending balance	[2],[9]	0			0
Investment, Identifier [Axis]: AMEREQUIP LLC., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[10],[11]				30
Ending balance	[2],[12],[13]	20			20
Investment, Identifier [Axis]: ATS Operating, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				120
Ending balance	[2]	$ 120			$ 120
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.57%	[14],[15]		10.57%	[14],[15]		10.85%	[16]
Spread		6.00%	[14],[15],[17]		6.00%	[14],[15],[17]		6.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 50
Ending balance	[2],[14],[15]	$ 175			$ 175
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9.56%	[15]		9.56%	[15]		9.85%	[16]
Spread		5.00%	[15],[17]		5.00%	[15],[17]		5.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 925
Ending balance	[2],[15]	$ 925			$ 925
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.56%	[15]		11.56%	[15]		11.85%	[16]
Spread		7.00%	[15],[17]		7.00%	[15],[17]		7.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 925
Ending balance	[2],[15]	$ 925			925
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				124
Ending balance	[2],[13]	$ 128			$ 128
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.25%	[15],[17],[19]		7.25%	[15],[17],[19]		7.25%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (12)
Ending balance	[2],[15],[19]	$ (10)			$ (10)
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.70%	[15]		11.70%	[15]		11.73%	[16]
Spread		7.25%	[15],[17]		7.25%	[15],[17]		7.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 3,343
Ending balance	[2],[15]	$ 3,300			$ 3,300
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.00%	[15],[21]		11.00%	[15],[21]		11.00%	[16],[22]
Spread		7.00%	[15],[17],[21]		7.00%	[15],[17],[21]		7.00%	[16],[18],[22]
PIK Rate		1.00%	[5],[15],[21]		1.00%	[5],[15],[21]		1.00%	[6],[16],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[22]				$ 928
Ending balance	[2],[15],[21]	$ 937			$ 937
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.00%	[15],[21]		11.00%	[15],[21]		11.00%	[16],[22]
Spread		7.00%	[15],[17],[21]		7.00%	[15],[17],[21]		7.00%	[16],[18],[22]
PIK Rate		1.00%	[5],[15],[21]		1.00%	[5],[15],[21]		1.00%	[6],[16],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[22]				$ 2,209
Ending balance	[2],[15],[21]	$ 2,079			$ 2,079
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		5.00%	[15],[17],[19]		5.00%	[15],[17],[19]		5.00%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (6)
Ending balance	[2],[15],[19]	$ (5)			$ (5)
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%	[15]		12.50%	[15]		12.50%	[16]
Spread		5.00%	[15],[17]		5.00%	[15],[17]		5.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 7,703
Ending balance	[2],[15]	$ 7,385			$ 7,385
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15]	12.95%			12.95%
Spread	[15],[17]	8.50%			8.50%
PIK Rate	[5],[15]	12.95%			12.95%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 2,180			$ 2,180
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.95%			12.95%
Spread		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					72
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					2,180
Gross Reductions					0
Ending balance		$ 2,180			2,180
Investment, Identifier [Axis]: American Nuts, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(336)
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					2,556
Gross Reductions					336
Ending balance		2,220			2,220
Investment, Identifier [Axis]: American Nuts, LLC, Roaster, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 2,220			$ 2,220
Investment, Identifier [Axis]: American Nuts, LLC, Roaster, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.95%	[15]		12.95%	[15]		16.49%	[16],[23]
Spread		8.50%	[15],[17]		8.50%	[15],[17]		11.75%	[16],[18],[23]
PIK Rate		12.95%	[5],[15]		12.95%	[5],[15]		16.49%	[6],[16],[23]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[23]				$ 2,621
Ending balance	[2],[15]	$ 2,180			$ 2,180
Investment, Identifier [Axis]: American Nuts, LLC, Roaster,Secured Debt 1
Schedule of Investments [Line Items]
Total Rate								14.49%
Spread	[18]	9.75%			9.75%
PIK Rate	[6]							14.49%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 4,480
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.95%			12.95%
Spread		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					72
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					2,180
Gross Reductions					0
Ending balance		$ 2,180			2,180
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[23],[24]				59
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[23],[24]				282
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	1,330			1,330
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[19]	$ 0			$ 0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		17.50%			17.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 988			$ 988
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				1,330
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Total Rate				14.13%			14.13%
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0		$ 0	0		0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		190
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,330		1,210
Gross Additions					0		190
Gross Reductions					0		0
Ending balance		1,330		$ 1,400	1,330		$ 1,400
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				15.38%			15.38%
Spread				10.00%			10.00%
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[1],[20]	54
Gross Additions					0		1
Gross Reductions					0		0
Ending balance		$ 0		$ 55	$ 0		$ 55
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		17.50%		15.38%	17.50%		15.38%	13.75%
Spread				10.00%			10.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					90		87
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,012	[1]	1,020
Gross Additions					2		10
Gross Reductions					26		49
Ending balance		$ 988		$ 981	988		981
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	[1],[8]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0	[2],[9]	0	0	[2],[9]	0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC,, Preferred Member Units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 0			$ 0
Investment, Identifier [Axis]: Ansira Partners II, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.75%	[15],[17],[19]		6.75%	[15],[17],[19]		6.75%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (45)
Ending balance	[2],[15],[19]	$ (40)			$ (40)
Investment, Identifier [Axis]: Ansira Partners II, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.07%	[15]		11.07%	[15]		11.25%	[16]
Spread		6.75%	[15],[17]		6.75%	[15],[17]		6.75%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 17,375
Ending balance	[2],[15]	$ 17,555			17,555
Investment, Identifier [Axis]: ArborWorks, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				0
Ending balance	[2]	0			0
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				6,667
Ending balance	[2]	7,614			7,614
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				0
Ending balance	[2]	$ 0			$ 0
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.00%			15.00%			15.00%
PIK Rate		15.00%	[5]		15.00%	[5]		15.00%	[6]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 1,061
Ending balance	[2]	$ 1,143			$ 1,143
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.91%	[15]		10.91%	[15]		11.08%	[16]
Spread		6.50%	[15],[17]		6.50%	[15],[17]		6.50%	[16],[18]
PIK Rate		10.91%	[5],[15]		10.91%	[5],[15]		11.08%	[6],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 4,278
Ending balance	[2],[15]	$ 4,518			4,518
Investment, Identifier [Axis]: Archer Systems, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[10]				110
Ending balance	[2],[12],[13]	110			110
Investment, Identifier [Axis]: B-O-F Corporation, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 180			$ 180
Investment, Identifier [Axis]: B-O-F Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[15],[17],[19]	5.75%			5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15],[19]	$ (13)			$ (13)
Investment, Identifier [Axis]: B-O-F Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[15]	9.05%			9.05%
Spread	[15],[17]	4.75%			4.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 2,952			$ 2,952
Investment, Identifier [Axis]: B-O-F Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[15]	11.05%			11.05%
Spread	[15],[17]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 2,952			$ 2,952
Investment, Identifier [Axis]: BDB Holdings, LLC, , Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	11,910			11,910
Investment, Identifier [Axis]: BDB Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(700)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				12,610
Gross Additions					0
Gross Reductions					700
Ending balance		$ 11,910			$ 11,910
Investment, Identifier [Axis]: BDB Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		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					10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					280
Gross Reductions					0
Ending balance	[2]	$ 280			280
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				1,550
Ending balance	[2]	$ 2,240			$ 2,240
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.18%	[14],[15]		10.18%	[14],[15]		10.68%	[16],[25]
Spread		5.75%	[14],[15],[17]		5.75%	[14],[15],[17]		6.25%	[16],[18],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[25]				$ 514
Ending balance	[2],[14],[15]	$ 385			$ 385
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[15]	10.15%			10.15%
Spread		5.75%	[15],[17]		5.75%	[15],[17]		6.25%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (10)
Ending balance	[2],[15]	$ 867			$ 867
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.11%	[15]		10.11%	[15]		10.92%	[16]
Spread		5.75%	[15],[17]		5.75%	[15],[17]		6.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 11,217
Ending balance	[2],[15]	$ 11,074			$ 11,074
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[15]	10.14%			10.14%
Spread	[15],[17]	5.75%			5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 0			$ 0
Investment, Identifier [Axis]: Barfly Ventures, LLC - Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[12],[13]	2,270			2,270
Investment, Identifier [Axis]: Barfly Ventures, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					317		193
Amount of Interest, Fees or Dividends Credited to Income					368		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,953	[1],[10]	1,380
Gross Additions					317		193
Gross Reductions					0		0
Ending balance		2,270		1,573	2,270		1,573
Investment, Identifier [Axis]: Batjer TopCo, LLC, Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[13]	770			770
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[19]	$ 0			$ 0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%			10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 30			$ 30
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.00%			10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 1,167			$ 1,167
Investment, Identifier [Axis]: Batjer TopCo, LLC, Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					200		(50)
Amount of Interest, Fees or Dividends Credited to Income					39		45
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					570	[1],[11]	680
Gross Additions					200		0
Gross Reductions					0		50
Ending balance		770		$ 630	770		$ 630
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				10.00%			10.00%	10.00%
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					0		(1)
Amount of Interest, Fees or Dividends Credited to Income					1		2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					50	[1]	0
Gross Additions					0		50
Gross Reductions					50		1
Ending balance		$ 0		$ 49	$ 0		$ 49
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%		10.00%	10.00%		10.00%	10.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					2		2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					30	[1]	30
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 30		$ 30	$ 30		$ 30
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.00%		10.00%	10.00%		10.00%	10.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		(15)
Amount of Interest, Fees or Dividends Credited to Income					64		62
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,165	[1]	1,175
Gross Additions					2		2
Gross Reductions					0		15
Ending balance		$ 1,167		$ 1,162	1,167		1,162
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				0
Ending balance	[2],[26]	0			0
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[27]				0
Ending balance	[2],[26]	0			0
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[27]				0
Ending balance	[2],[26]	$ 0			$ 0
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[15]	14.53%			14.53%
Spread		10.25%	[7],[15],[17]		10.25%	[7],[15],[17]		10.25%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (14)
Ending balance	[2],[7],[15]	$ 23			$ 23
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.53%	[7],[15],[28]		14.53%	[7],[15],[28]		15.76%	[16]
Spread		10.25%	[7],[15],[17],[28]		10.25%	[7],[15],[17],[28]		10.25%	[16],[18]
PIK Rate		7.25%	[5],[7],[15],[28]		7.25%	[5],[7],[15],[28]		9.25%	[6],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 6,963
Ending balance	[2],[7],[15],[28]	$ 69			$ 69
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[7],[15]	14.58%			14.58%
Spread	[7],[15],[17]	10.25%			10.25%
PIK Rate	[5],[7],[15]	7.25%			7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[7],[15]	$ 1,400			$ 1,400
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[7],[15],[28]	14.58%			14.58%
Spread	[7],[15],[17],[28]	10.25%			10.25%
PIK Rate	[5],[7],[15],[28]	7.25%			7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[7],[15],[28]	$ 4,445			$ 4,445
Investment, Identifier [Axis]: Binswanger Enterprises, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[10]				650
Ending balance	[2],[12]	1,060			1,060
Investment, Identifier [Axis]: Bluestem Brands, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				0
Ending balance	[2]	$ 0			$ 0
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.94%	[7],[15]		12.94%	[7],[15]		13.17%	[16]
Spread		8.50%	[7],[15],[17]		8.50%	[7],[15],[17]		8.50%	[16],[18]
PIK Rate		11.94%	[5],[7],[15]		11.94%	[5],[7],[15]		12.17%	[6],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 181
Ending balance	[2],[7],[15]	$ 108			$ 108
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.00%	[7],[15]		15.00%	[7],[15]		15.00%	[16]
Spread		7.50%	[7],[15],[17]		7.50%	[7],[15],[17]		7.50%	[16],[18]
PIK Rate		14.75%	[5],[7],[15]		14.75%	[5],[7],[15]		14.75%	[6],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 2,792
Ending balance	[2],[7],[15]	$ 1,698			$ 1,698
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.94%	[7],[15]		12.94%	[7],[15]		13.17%	[16]
Spread		8.50%	[7],[15],[17]		8.50%	[7],[15],[17]		8.50%	[16],[18]
PIK Rate		12.94%	[5],[7],[15]		12.94%	[5],[7],[15]		12.17%	[6],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 3,790
Ending balance	[2],[7],[15]	$ 2,255			2,255
Investment, Identifier [Axis]: Bluestem Brands, Inc., Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[8]				0
Ending balance	[2],[9]	0			0
Investment, Identifier [Axis]: Boccella Precast Products LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				80
Ending balance	[2],[13]	$ 370			$ 370
Investment, Identifier [Axis]: Boccella Precast Products LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.00%			10.00%			10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 66
Ending balance	[2]	$ 64			64
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				0
Ending balance	[2]	0			0
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				310
Ending balance	[2]	$ 350			$ 350
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.45%	[15]		11.45%	[15]		11.65%	[16]
Spread		7.00%	[15],[17]		7.00%	[15],[17]		7.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 360
Ending balance	[2],[15]	$ 360			$ 360
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.45%	[15]		10.45%	[15]		10.74%	[16]
Spread		6.00%	[15],[17]		6.00%	[15],[17]		6.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 3,999
Ending balance	[2],[15]	$ 3,969			$ 3,969
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.45%	[15]		12.45%	[15]		12.74%	[16]
Spread		8.00%	[15],[17]		8.00%	[15],[17]		8.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 3,999
Ending balance	[2],[15]	$ 3,969			3,969
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[13]	$ 820			$ 820
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[15]	14.48%			14.48%
Spread	[15],[17]	10.00%			10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 1,254			$ 1,254
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)					(350)		(70)
Amount of Interest, Fees or Dividends Credited to Income					15		15
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,170		1,400
Gross Additions					0		0
Gross Reductions					350		70
Ending balance		$ 820		$ 1,330	820		$ 1,330
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Provider of Crane Rental and Operating Services, Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				1,170
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Provider of Crane Rental and Operating Services, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[16]							14.66%
Spread	[16],[18]							10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,254
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14.48%		15.48%	14.48%		15.48%
Spread		10.00%		10.00%	10.00%		10.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					91		107
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,254		1,374
Gross Additions					0		4
Gross Reductions					0		62
Ending balance		$ 1,254		$ 1,316	1,254		1,316
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	[1],[29]				1,039
Ending balance	[2],[30]	966			966
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	[1],[29]				8,031
Ending balance	[2],[13],[30]	$ 6,954			$ 6,954
Investment, Identifier [Axis]: Buca C, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		6.00%			6.00%			6.00%
PIK Rate		6.00%	[5]		6.00%	[5]		6.00%	[6]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 0
Ending balance	[2]	$ 0			$ 0
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.00%	[7],[31]		15.00%	[7],[31]		15.00%	[23],[24]
PIK Rate		15.00%	[5],[7],[31]		15.00%	[5],[7],[31]		15.00%	[6],[23],[24]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[23],[24]				$ 0
Ending balance	[2],[7],[31]	$ 0			$ 0
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.00%	[7],[31]		15.00%	[7],[31]		15.00%	[23]
PIK Rate		15.00%	[5],[7],[31]		15.00%	[5],[7],[31]		15.00%	[6],[23]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[23]				$ 0
Ending balance	[2],[7],[31]	$ 0			$ 0
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		15.00%	[7],[31]		15.00%	[7],[31]		15.00%	[23],[24]
PIK Rate		15.00%	[5],[7],[31]		15.00%	[5],[7],[31]		15.00%	[6],[23],[24]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[23],[24]				$ 0
Ending balance	[2],[7],[31]	$ 0			$ 0
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15]	9.19%			9.19%
Spread		5.00%	[15],[17]		5.00%	[15],[17]		5.00%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ 0
Ending balance	[2],[15]	$ 1,136			$ 1,136
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9.45%	[15]		9.45%	[15]		9.46%	[16]
Spread		5.00%	[15],[17]		5.00%	[15],[17]		5.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 11,575
Ending balance	[2],[15]	$ 10,955			10,955
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				513
Ending balance	[2]	744			744
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				0
Ending balance	[2]	$ 0			$ 0
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.00%	[15],[17],[19]		7.00%	[15],[17],[19]		6.75%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (31)
Ending balance	[2],[15],[19]	$ (25)			$ (25)
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[15]	11.40%			11.40%
Spread		7.00%	[15],[17]		7.00%	[15],[17]		6.75%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (31)
Ending balance	[2],[15]	$ 7,031			7,031
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[16]							11.18%
Spread	[16],[18]							6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				7,169
Investment, Identifier [Axis]: Career Team Holdings, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				530
Ending balance	[2]	$ 580			$ 580
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[16]							10.56%
Spread		6.00%	[15],[17],[19]		6.00%	[15],[17],[19]		6.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 97
Ending balance	[2],[15],[19]	$ (7)			$ (7)
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%			12.50%			12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 2,134
Ending balance	[2]	$ 2,365			2,365
Investment, Identifier [Axis]: CaseWorthy, Inc., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[10]				160
Ending balance	[2],[12]	210			210
Investment, Identifier [Axis]: CenterPeak Holdings, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				1,610
Ending balance	[2],[13]	2,080			2,080
Investment, Identifier [Axis]: CenterPeak Holdings, LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[20]				0
Ending balance	[2],[19]	$ 0			$ 0
Investment, Identifier [Axis]: CenterPeak Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.00%			15.00%			15.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 2,390
Ending balance	[2]	$ 2,390			2,390
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				3,110
Ending balance	[2]	$ 4,140			4,140
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[16]							13.66%
Spread	[16],[18]							9.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 6,384
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							120
Amount of Interest, Fees or Dividends Credited to Income							15
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							2,760
Gross Additions							120
Gross Reductions							0
Ending balance				$ 2,880			$ 2,880
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		10.00%	[15],[17],[19]	10.00%	10.00%	[15],[17],[19]	10.00%	6.00%	[16],[18],[20]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					2		2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[1],[16],[20]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[2],[15],[19]	$ 0	0	[2],[15],[19]	$ 0
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				15.48%			15.48%	12.74%	[16]
Spread				10.00%			10.00%	8.00%	[16],[18]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							58
Amount of Interest, Fees or Dividends Credited to Income							344
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 3,905	[1],[16]	0
Gross Additions							5,494
Gross Reductions							378
Ending balance				$ 5,116			5,116
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		14.48%			14.48%
Spread		10.00%			10.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(6)
Amount of Interest, Fees or Dividends Credited to Income					451
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,384
Gross Additions					6
Gross Reductions					274
Ending balance		$ 6,116			6,116
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1,030		(29)
Amount of Interest, Fees or Dividends Credited to Income					15		84
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,110		4,394
Gross Additions					1,030		0
Gross Reductions					0		4,394
Ending balance		$ 4,140		0	4,140		0
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC,Secured Debt 1
Schedule of Investments [Line Items]
Spread	[16],[18],[20]							9.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ 0
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC,Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[15]	14.48%			14.48%
Spread	[15],[17]	10.00%			10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 6,116			$ 6,116
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[13]	8,070			8,070
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[13],[26]	$ 923			$ 923
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[15],[17],[19]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15],[19]	$ 0			$ 0
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[15]	12.49%			12.49%
Spread	[15],[17]	8.00%			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 4,705			$ 4,705
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)					(210)		180
Amount of Interest, Fees or Dividends Credited to Income					1,189		849
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					8,280	[1],[11]	7,330
Gross Additions					0		180
Gross Reductions					210		0
Ending balance		8,070		7,510	8,070		7,510
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)					35		72
Amount of Interest, Fees or Dividends Credited to Income					12		12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					888	[1],[11],[27]	715
Gross Additions					35		74
Gross Reductions					0		1
Ending balance		$ 923		$ 788	$ 923		$ 788
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%		6.00%	6.00%		6.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(11)		(11)
Amount of Interest, Fees or Dividends Credited to Income					12		12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					11		11
Gross Reductions					11		11
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.49%		13.49%	12.49%		13.49%
Spread		8.00%		8.00%	8.00%		8.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					3		0
Amount of Interest, Fees or Dividends Credited to Income					264		267
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,905		3,905
Gross Additions					800		0
Gross Reductions					0		0
Ending balance		$ 4,705		$ 3,905	$ 4,705		3,905
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.57%	[14],[15]		11.57%	[14],[15]		11.53%	[16],[25]
Spread		7.00%	[14],[15],[17]		7.00%	[14],[15],[17]		7.00%	[16],[18],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[25]				$ 444
Ending balance	[2],[14],[15]	$ 398			$ 398
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.55%	[15]		11.55%	[15]		11.93%	[16]
Spread		7.00%	[15],[17]		7.00%	[15],[17]		7.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 3,166
Ending balance	[2],[15]	$ 3,287			$ 3,287
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.55%	[15]		11.55%	[15]		11.93%	[16]
Spread		7.00%	[15],[17]		7.00%	[15],[17]		7.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 175
Ending balance	[2],[15]	$ 182			$ 182
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		11.55%	[15]		11.55%	[15]		11.93%	[16]
Spread		7.00%	[15],[17]		7.00%	[15],[17]		7.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 424
Ending balance	[2],[15]	$ 440			440
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)					(60)		(20)
Amount of Interest, Fees or Dividends Credited to Income					134		39
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,900	[1],[11]	3,920
Gross Additions					0		0
Gross Reductions					60		20
Ending balance		3,840		3,900	3,840		3,900
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[13]	3,070			3,070
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[19]	$ 0			$ 0
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.00%			10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 238			$ 238
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)					320		250
Amount of Interest, Fees or Dividends Credited to Income					203		105
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,750	[1],[11]	1,300
Gross Additions					320		250
Gross Reductions					0		0
Ending balance		3,070		1,550	3,070		1,550
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)					80		(45)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					237	[1],[27]	282
Gross Additions					80		0
Gross Reductions					0		45
Ending balance		317		237	317		237
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[20]				0
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					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
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate								9.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 1,690
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		9.00%		11.50%	9.00%		11.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(1)		0
Amount of Interest, Fees or Dividends Credited to Income					78		127
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,690		2,103
Gross Additions					1		0
Gross Reductions					121		155
Ending balance		$ 1,570		$ 1,948	$ 1,570		$ 1,948
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.00%		10.00%	10.00%		10.00%	10.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					12		13
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					243	[1]	251
Gross Additions					0		0
Gross Reductions					5		5
Ending balance		$ 238		$ 246	238		246
Investment, Identifier [Axis]: Clad-Rex Steel, LLC,, Member Units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[26]	$ 317			$ 317
Investment, Identifier [Axis]: Clad-Rex Steel, LLC,, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9.00%			9.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 1,570			$ 1,570
Investment, Identifier [Axis]: Clarius BIGS, LLC, Secured Debt
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[10],[23],[24]				19
Ending balance	[2],[7],[12],[31]	8			8
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				710
Ending balance	[2]	490			490
Investment, Identifier [Axis]: Cody Pools, Inc., Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[13],[26]	16,790			16,790
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)					(160)		500
Amount of Interest, Fees or Dividends Credited to Income					336		377
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					16,950	[1],[11],[27]	18,120
Gross Additions					0		501
Gross Reductions					160		0
Ending balance		$ 16,790		18,621	$ 16,790		18,621
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.50%			12.50%
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					3		2
Amount of Interest, Fees or Dividends Credited to Income					19		5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[1],[20]	0
Gross Additions					782		236
Gross Reductions					79		236
Ending balance		$ 703	[2]	$ 0	$ 703	[2]	$ 0
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%		12.50%	12.50%		12.50%	12.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(4)		(4)
Amount of Interest, Fees or Dividends Credited to Income					401		443
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,598	[1]	7,111
Gross Additions					4		4
Gross Reductions					389		234
Ending balance		$ 6,213	[2]	$ 6,881	6,213	[2]	6,881
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[19]	$ 0			$ 0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 2,874			$ 2,874
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[13]	3,820			3,820
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				3,390
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					430		(360)
Amount of Interest, Fees or Dividends Credited to Income					467		360
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,390		600
Gross Additions					430		0
Gross Reductions					0		600
Ending balance		3,820		0	3,820		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)							1,020
Amount of Interest, Fees or Dividends Credited to Income							139
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							1,920
Gross Additions							1,020
Gross Reductions							0
Ending balance				2,940			2,940
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1		1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[1],[20]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%		12.00%	12.00%		12.00%	12.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(12)		82
Amount of Interest, Fees or Dividends Credited to Income					215		326
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,578	[1]	5,407
Gross Additions					12		106
Gross Reductions					716		978
Ending balance		$ 2,874		$ 4,535	2,874		4,535
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[19]	$ (14)			$ (14)
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%			13.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 4,236			$ 4,236
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					3		117
Amount of Interest, Fees or Dividends Credited to Income					30		30
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,860	[1]	1,863
Gross Additions					3		117
Gross Reductions					0		0
Ending balance		1,863	[2]	$ 1,980	1,863	[2]	$ 1,980
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				13.50%			13.50%
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					2		3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(16)	[1],[20]	0
Gross Additions					2		388
Gross Reductions					0		0
Ending balance		$ (14)		$ 388	$ (14)		$ 388
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%		13.50%	13.50%		13.50%	13.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					23		0
Amount of Interest, Fees or Dividends Credited to Income					305		306
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,201	[1]	4,175
Gross Additions					35		13
Gross Reductions					0		0
Ending balance		$ 4,236		$ 4,188	$ 4,236		4,188
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.69%	[14],[15]		12.69%	[14],[15]		12.93%	[16],[25]
Spread		8.25%	[14],[15],[17]		8.25%	[14],[15],[17]		8.25%	[16],[18],[25]
PIK Rate	[5],[14],[15]	12.69%			12.69%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[25]				$ 6,118
Ending balance	[2],[14],[15]	$ 6,354			$ 6,354
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[15]	12.70%			12.70%
Spread		8.25%	[15],[17]		8.25%	[15],[17]		8.25%	[16],[18],[20]
PIK Rate	[5],[15]	12.70%			12.70%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (42)
Ending balance	[2],[15]	$ 15,486			15,486
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[16]							12.92%
Spread	[16],[18]							8.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				14,807
Investment, Identifier [Axis]: Connect Telecommunications Solutions Holdings, Inc., Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				1,400
Ending balance	[2]	$ 1,400			$ 1,400
Investment, Identifier [Axis]: Connect Telecommunications Solutions Holdings, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 2,977
Ending balance	[2]	$ 2,751			2,751
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					530	[1],[29],[32],[33]	568
Gross Additions					0		0
Gross Reductions					16		0
Ending balance		$ 514	[2],[30],[34],[35]	568	$ 514	[2],[30],[34],[35]	568
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.83%	[14],[15]		10.83%	[14],[15]		10.39%	[16]
Spread		6.50%	[14],[15],[17]		6.50%	[14],[15],[17]		6.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 440
Ending balance	[2],[14],[15]	$ 449			$ 449
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.83%	[15]		10.83%	[15]		10.36%	[16]
Spread		6.50%	[15],[17]		6.50%	[15],[17]		6.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 2,824
Ending balance	[2],[15]	$ 2,856			$ 2,856
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.83%	[15]		10.83%	[15]		10.40%	[16]
Spread		6.50%	[15],[17]		6.50%	[15],[17]		6.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,878
Ending balance	[2],[15]	$ 1,904			$ 1,904
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		11.08%	[15]		11.08%	[15]		10.61%	[16]
Spread		6.75%	[15],[17]		6.75%	[15],[17]		6.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 8,109
Ending balance	[2],[15]	$ 8,618			8,618
Investment, Identifier [Axis]: Creative Foam Corporation, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 286			$ 286
Investment, Identifier [Axis]: Creative Foam Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.25%	[15],[17],[19]		6.25%	[15],[17],[19]		5.75%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (28)
Ending balance	[2],[15],[19]	$ (25)			$ (25)
Investment, Identifier [Axis]: Creative Foam Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.55%	[15]		10.55%	[15]		10.11%	[16]
Spread		6.25%	[15],[17]		6.25%	[15],[17]		5.75%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 10,694
Ending balance	[2],[15]	$ 10,675			$ 10,675
Investment, Identifier [Axis]: Creative Foam Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[15]	10.57%			10.57%
Spread	[15],[17]	6.25%			6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 16,999			$ 16,999
Investment, Identifier [Axis]: DMA Industries, LLC, Preferred Equity 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	[1]				1,486
Gross Additions					90
Gross Reductions					0
Ending balance		$ 1,576			$ 1,576
Investment, Identifier [Axis]: DMA Industries, LLC, Preferred Equity 2
Schedule of Investments [Line Items]
Total Rate		15.00%			15.00%			15.00%	[11]
PIK Rate		15.00%			15.00%			15.00%	[6],[11]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					50
Amount of Interest, Fees or Dividends Credited to Income					61
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				810
Gross Additions					111
Gross Reductions					0
Ending balance		$ 921			$ 921
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.00%			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					9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				138
Gross Additions					0
Gross Reductions					0
Ending balance		$ 138			$ 138
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%			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					258
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				4,161
Gross Additions					5
Gross Reductions					0
Ending balance		$ 4,166			4,166
Investment, Identifier [Axis]: DMA Industries, LLC. Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 1,576			$ 1,576
Investment, Identifier [Axis]: DMA Industries, LLC. Preferred Equity 2
Schedule of Investments [Line Items]
Total Rate	[13]	15.00%			15.00%
PIK Rate	[5],[13]	15.00%			15.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[13]	$ 921			$ 921
Investment, Identifier [Axis]: DMA Industries, LLC. Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 4,166			$ 4,166
Investment, Identifier [Axis]: DMA Industries, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 138			$ 138
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class A Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		8.00%			8.00%			8.00%
PIK Rate		8.00%	[5]		8.00%	[5]		8.00%	[6]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 0
Ending balance	[2]	$ 0			$ 0
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class AA Preferred Member Units (non-voting)
Schedule of Investments [Line Items]
Total Rate		10.00%			10.00%			10.00%	[11]
PIK Rate		10.00%	[5]		10.00%	[5]		10.00%	[6],[11]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				$ 438
Ending balance	[2]	$ 0			0
Investment, Identifier [Axis]: Dalton US Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[10]				50
Ending balance	[2],[12]	50			50
Investment, Identifier [Axis]: Datacom, LLC, Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 0			$ 0
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%			10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 799			$ 799
Investment, Identifier [Axis]: Datacom, LLC, , Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		7.50%			7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 74			$ 74
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)					(70)		10
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					30	[1]	10
Gross Additions					40		10
Gross Reductions					70		0
Ending balance		$ 0		$ 20	$ 0		$ 20
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		7.50%		7.50%	7.50%		7.50%	7.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					4		2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					55	[1]	49
Gross Additions					79		25
Gross Reductions					60		45
Ending balance		$ 74		$ 29	$ 74		$ 29
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%		10.00%	10.00%		10.00%	10.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(74)		0
Amount of Interest, Fees or Dividends Credited to Income					55		57
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					878	[1]	844
Gross Additions					10		11
Gross Reductions					89		15
Ending balance		$ 799		$ 840	799		840
Investment, Identifier [Axis]: Digital Products Holdings LLC, Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[13]	$ 2,459			$ 2,459
Investment, Identifier [Axis]: Digital Products Holdings LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[15]	14.38%			14.38%
Spread	[15],[17]	10.00%			10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 2,945			$ 2,945
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	[1],[11]	2,459
Gross Additions					0		1
Gross Reductions					0		0
Ending balance		$ 2,459		$ 2,460	$ 2,459		$ 2,460
Investment, Identifier [Axis]: Digital Products Holdings LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14.38%		15.38%	14.38%		15.38%	14.56%	[16]
Spread		10.00%		10.00%	10.00%		10.00%	10.00%	[16],[18]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					225		279
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,105	[1],[16]	3,673
Gross Additions					5		8
Gross Reductions					165		363
Ending balance		$ 2,945		$ 3,318	2,945		3,318
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	4,620			4,620
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)					140		(280)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,480	[1]	5,180
Gross Additions					140		0
Gross Reductions					0		280
Ending balance		4,620		4,900	4,620		4,900
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(1)		(1)
Amount of Interest, Fees or Dividends Credited to Income					2		7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[1],[20]	217
Gross Additions					1		226
Gross Reductions					1		443
Ending balance		$ 0	[2],[19]	$ 0	$ 0	[2],[19]	$ 0
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.00%		14.00%	14.00%		14.00%	14.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(6)		(7)
Amount of Interest, Fees or Dividends Credited to Income					328		354
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,668	[1]	5,002
Gross Additions					6		7
Gross Reductions					173		174
Ending balance		$ 4,501	[2]	$ 4,835	4,501	[2]	4,835
Investment, Identifier [Axis]: Dynamic Communities, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				0
Ending balance	[2]	0			0
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				60
Ending balance	[2]	110			110
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				0
Ending balance	[2]	$ 0			$ 0
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.43%	[15]		11.43%	[15]		11.46%	[16]
Spread		7.00%	[15],[17]		7.00%	[15],[17]		7.00%	[16],[18]
PIK Rate		11.43%	[5],[15]		11.43%	[5],[15]		11.46%	[6],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 2,220
Ending balance	[2],[15]	$ 2,414			$ 2,414
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.43%	[15]		12.43%	[15]		13.46%	[16]
Spread		8.00%	[15],[17]		8.00%	[15],[17]		9.00%	[16],[18]
PIK Rate			[5],[15]			[5],[15]		13.46%	[6],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 2,219
Ending balance	[2],[15]	$ 2,383			$ 2,383
Investment, Identifier [Axis]: Electro Technical Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[15],[17],[19]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15],[19]	$ (81)			$ (81)
Investment, Identifier [Axis]: Electro Technical Industries, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 714			$ 714
Investment, Identifier [Axis]: Electro Technical Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[15]	10.33%			10.33%
Spread	[15],[17]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 24,530			$ 24,530
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				370
Ending balance	[2]	340			340
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[27]				199
Ending balance	[2],[26]	$ 207			$ 207
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[15],[17],[19]		6.00%	[15],[17],[19]		6.00%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ 0
Ending balance	[2],[15],[19]	$ 0			$ 0
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 1,162
Ending balance	[2]	$ 1,134			$ 1,134
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		9.00%			9.00%			9.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 406
Ending balance	[2]	$ 404			$ 404
Investment, Identifier [Axis]: Emerald Technologies Acquisition Co, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.73%	[15],[36]		10.73%	[15],[36]		10.71%	[16]
Spread		6.25%	[15],[17],[36]		6.25%	[15],[17],[36]		6.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,863
Ending balance	[2],[15],[36]	$ 1,608			1,608
Investment, Identifier [Axis]: Escalent, Inc., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				240
Ending balance	[2],[13]	$ 240			$ 240
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[15],[17],[19]		6.00%	[15],[17],[19]		8.00%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (7)
Ending balance	[2],[15],[19]	$ (7)			$ (7)
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.30%	[15]		10.30%	[15]		12.39%	[16]
Spread		6.00%	[15],[17]		6.00%	[15],[17]		8.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 358
Ending balance	[2],[15]	$ 362			$ 362
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.30%	[15]		10.30%	[15]		12.43%	[16]
Spread		6.00%	[15],[17]		6.00%	[15],[17]		8.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 6,855
Ending balance	[2],[15]	$ 6,820			$ 6,820
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.56%	[15]		12.56%	[15]		12.59%	[16]
Spread		8.00%	[15],[17]		8.00%	[15],[17]		8.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 308
Ending balance	[2],[15]	$ 308			$ 308
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.56%	[15]		12.56%	[15]		12.59%	[16]
Spread		8.00%	[15],[17]		8.00%	[15],[17]		8.00%	[16],[18]
PIK Rate		4.00%	[5],[15]		4.00%	[5],[15]		6.00%	[6],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 3,969
Ending balance	[2],[15]	$ 4,026			$ 4,026
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 7,135
Ending balance	[2]	$ 7,995			7,995
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC, Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[8]				2,710
Ending balance	[2],[9],[13]	3,660			3,660
Investment, Identifier [Axis]: Fidelity Government Portfolio Fund Class III
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[37]				2,099
Ending balance	[2],[38]	$ 5,420			$ 5,420
Investment, Identifier [Axis]: First American Treasury Obligations Fund Class Z
Schedule of Investments [Line Items]
Total Rate		4.17%			4.17%			4.41%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[39]				$ 12,261
Ending balance	[2],[40]	$ 16,519			16,519
Investment, Identifier [Axis]: Flame King Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							1,970
Amount of Interest, Fees or Dividends Credited to Income							393
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					8,980	[1],[11]	6,970
Gross Additions							1,970
Gross Reductions							0
Ending balance		10,340	[2],[13]	8,940	10,340	[2],[13]	8,940
Investment, Identifier [Axis]: Flame King Holdings, LLC, Preferred Equity 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					1,360
Amount of Interest, Fees or Dividends Credited to Income					1,738
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					8,980
Gross Additions					1,360
Gross Reductions					0
Ending balance		$ 10,340			$ 10,340
Investment, Identifier [Axis]: Flame King Holdings, LLC, Preferred Equity 2
Schedule of Investments [Line Items]
Total Rate		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					5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					16,175
Gross Reductions					0
Ending balance		$ 16,175			$ 16,175
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 16,175			$ 16,175
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)					(82)		0
Amount of Interest, Fees or Dividends Credited to Income					(23)		255
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,263	[1],[11],[29],[32],[33]	3,705
Gross Additions					0		0
Gross Reductions					1,070		1,109
Ending balance		193		2,596	193		2,596
Investment, Identifier [Axis]: GFG Group, LLC, Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[13]	$ 2,530			$ 2,530
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		8.00%			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 2,313			$ 2,313
Investment, Identifier [Axis]: GFG Group, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		8.00%			8.00%
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					(110)		(410)
Amount of Interest, Fees or Dividends Credited to Income					145		195
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,640	[1],[11]	2,870
Gross Additions					0		0
Gross Reductions					110		410
Ending balance		$ 2,530		$ 2,460	2,530		$ 2,460
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate				8.00%			8.00%	8.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(7)
Amount of Interest, Fees or Dividends Credited to Income							102
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,046	[1]	2,336
Gross Additions							7
Gross Reductions							7
Ending balance				$ 2,336			2,336
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(16)
Amount of Interest, Fees or Dividends Credited to Income					57
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,046
Gross Additions					2
Gross Reductions					2,048
Ending balance		0			0
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt 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					46
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					2,313
Gross Reductions					0
Ending balance		$ 2,313			$ 2,313
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.48%			10.48%
Spread	[17]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 1,550			$ 1,550
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.48%			12.48%
Spread	[17]	8.00%			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 19,944			$ 19,944
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)					460		0
Amount of Interest, Fees or Dividends Credited to Income					1,541		41
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					22,600	[1]	21,890
Gross Additions					460		0
Gross Reductions					0		1
Ending balance		$ 23,060	[2],[13]	$ 21,889	$ 23,060	[2],[13]	$ 21,889
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.48%		11.48%	10.48%		11.48%	10.66%
Spread		6.00%		6.00%	6.00%		6.00%	6.00%	[18]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(3)		5
Amount of Interest, Fees or Dividends Credited to Income					85		76
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,550	[1]	1,182
Gross Additions					3		368
Gross Reductions					3		0
Ending balance		$ 1,550		$ 1,550	$ 1,550		$ 1,550
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.48%		13.48%	12.48%		13.48%	12.66%
Spread		8.00%		8.00%	8.00%		8.00%	8.00%	[18]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(25)		(25)
Amount of Interest, Fees or Dividends Credited to Income					1,275		1,383
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					19,944	[1]	19,944
Gross Additions					25		25
Gross Reductions					25		25
Ending balance		$ 19,944		$ 19,944	19,944		19,944
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[13]	28,690			28,690
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)					0		2,460
Amount of Interest, Fees or Dividends Credited to Income					810		751
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					28,690	[1],[11]	24,180
Gross Additions					0		2,460
Gross Reductions					0		0
Ending balance		$ 28,690		$ 26,640	$ 28,690		$ 26,640
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.50%	[15],[17],[19],[41]	7.50%	7.50%	[15],[17],[19],[41]	7.50%	7.00%	[16],[18],[20],[42]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1		1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[1],[16],[20],[42]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[2],[15],[19],[41]	$ 0	$ 0	[2],[15],[19],[41]	$ 0
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.50%	[15]		11.50%	[15]		11.00%	[16],[42]
Spread		7.50%	[15],[17]		7.50%	[15],[17]		7.00%	[16],[18],[42]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[42]				$ 18,282
Ending balance	[2],[15]	$ 18,082			$ 18,082
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		11.50%		10.50%	11.50%		10.50%
Spread		7.50%		7.50%	7.50%		7.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(19)		(37)
Amount of Interest, Fees or Dividends Credited to Income					1,074		713
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					18,282		13,520
Gross Additions					19		37
Gross Reductions					219		1,237
Ending balance		$ 18,082		$ 12,320	18,082		$ 12,320
Investment, Identifier [Axis]: Garyline, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				150
Ending balance	[2]	$ 150			$ 150
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.32%	[15]		11.32%	[15]		11.29%	[16],[25]
Spread		7.00%	[15],[17]		7.00%	[15],[17]		6.75%	[16],[18],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[25]				$ 2,416
Ending balance	[2],[15]	$ 890			$ 890
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.31%	[15]		11.31%	[15]		11.34%	[16]
Spread		7.00%	[15],[17]		7.00%	[15],[17]		6.75%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 9,567
Ending balance	[2],[15]	$ 8,466			8,466
Investment, Identifier [Axis]: GradeEight Corp., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				471
Ending balance	[2]	$ 370			$ 370
Investment, Identifier [Axis]: GradeEight Corp., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15]	13.75%			13.75%
Spread		6.25%	[15],[17]		6.25%	[15],[17]		7.25%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (45)
Ending balance	[2],[15]	$ 299			$ 299
Investment, Identifier [Axis]: GradeEight Corp., Secured Debt 2
Schedule of Investments [Line Items]
Spread		7.25%	[15],[17],[19]		7.25%	[15],[17],[19]		7.25%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (22)
Ending balance	[2],[15],[19]	$ (20)			$ (20)
Investment, Identifier [Axis]: GradeEight Corp., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.47%	[15],[43]		11.47%	[15],[43]		11.74%	[16]
Spread		7.25%	[15],[17],[43]		7.25%	[15],[17],[43]		7.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 14,542
Ending balance	[2],[15],[43]	$ 14,320			14,320
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	0			0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 0			$ 0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		9.50%		9.50%	9.50%		9.50%
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
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%	[7]	12.50%	12.50%	[7]	12.50%
PIK Rate				12.50%			12.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					123		(84)
Amount of Interest, Fees or Dividends Credited to Income					0		19
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					378		571
Gross Additions					91		0
Gross Reductions					0		84
Ending balance		$ 469	[2],[7]	$ 487	469	[2],[7]	487
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[1]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0		0	0		0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(620)
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	[1]	620
Gross Additions					0		0
Gross Reductions					0		620
Ending balance		$ 0		0	$ 0		0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		9.50%	[7],[15],[17],[19]		9.50%	[7],[15],[17],[19]		9.50%	[16],[18],[20],[23]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20],[23]				$ 0
Ending balance	[2],[7],[15],[19]	$ 0			0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23]							12.50%
PIK Rate	[6],[23]							12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[23]				378
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				0
Ending balance	[2]	$ 0			$ 0
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.56%	[15]		13.56%	[15]		8.75%	[16]
Spread		9.00%	[15],[17]		9.00%	[15],[17]		3.50%	[16],[18]
PIK Rate	[6],[16]							2.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,307
Ending balance	[2],[15]	$ 38			$ 38
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9.01%	[15]		9.01%	[15]		2.50%	[23]
Spread	[15],[17]	3.50%			3.50%
PIK Rate		9.01%	[5],[15]		9.01%	[5],[15]		2.50%	[6],[23]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[23]				$ 235
Ending balance	[2],[15]	$ 1,348			$ 1,348
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[7]	2.50%			2.50%
PIK Rate	[5],[7]	2.50%			2.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[7]	$ 10			$ 10
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.50%	[15],[17],[19]		6.50%	[15],[17],[19]		6.50%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (10)
Ending balance	[2],[15],[19]	$ (8)			$ (8)
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.83%	[15]		10.83%	[15]		10.86%	[16]
Spread		6.50%	[15],[17]		6.50%	[15],[17]		6.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,975
Ending balance	[2],[15]	$ 1,965			$ 1,965
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.83%	[15]		10.83%	[15]		10.86%	[16]
Spread		6.50%	[15],[17]		6.50%	[15],[17]		6.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,396
Ending balance	[2],[15]	$ 1,390			$ 1,390
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		10.83%	[15]		10.83%	[15]		10.86%	[16]
Spread		6.50%	[15],[17]		6.50%	[15],[17]		6.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 4,875
Ending balance	[2],[15]	$ 4,850			$ 4,850
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate		10.83%	[15]		10.83%	[15]		10.86%	[16]
Spread		6.50%	[15],[17]		6.50%	[15],[17]		6.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 2,382
Ending balance	[2],[15]	$ 2,370			2,370
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 3, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					194		97
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,472		4,225
Gross Additions					195		97
Gross Reductions					205		0
Ending balance		4,462		4,322	4,462		4,322
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 MH, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					5,295		57
Amount of Unrealized Gain/(Loss)					(4,939)		2,941
Amount of Interest, Fees or Dividends Credited to Income					0		278
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					8,740	[1],[11],[29],[32],[33]	6,050
Gross Additions					3,875		2,998
Gross Reductions					11,001		57
Ending balance		1,614	[2],[30],[34],[35]	8,991	1,614	[2],[30],[34],[35]	8,991
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (423 AER II, LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[30],[34],[35]	1,526			1,526
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	[1],[29],[32],[33]				4,472
Ending balance	[2],[30],[34],[35]	4,462			4,462
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				5,060
Ending balance	[2],[13]	5,680			5,680
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[27]				270
Ending balance	[2],[26]	$ 300			$ 300
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.48%	[15]		10.48%	[15]		10.73%	[16]
Spread		6.00%	[15],[17]		6.00%	[15],[17]		6.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 661
Ending balance	[2],[15]	$ 622			$ 622
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%			12.50%			12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 9,744
Ending balance	[2]	$ 9,744			$ 9,744
Investment, Identifier [Axis]: Hornblower Sub, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		9.80%	[14],[15]		9.80%	[14],[15]		9.92%	[16]
Spread		5.50%	[14],[15],[17]		5.50%	[14],[15],[17]		5.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,204
Ending balance	[2],[14],[15]	$ 2,419			$ 2,419
Investment, Identifier [Axis]: Hornblower Sub, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9.78%	[15]		9.78%	[15]		10.11%	[16]
Spread		5.50%	[15],[17]		5.50%	[15],[17]		5.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 15,338
Ending balance	[2],[15]	$ 16,291			$ 16,291
Investment, Identifier [Axis]: Hybrid Promotions, LLC , Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.81%	[12],[15]		12.81%	[12],[15]		13.10%	[10],[16]
Spread		8.25%	[12],[15],[17]		8.25%	[12],[15],[17]		8.25%	[10],[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[10],[16]				$ 8,000
Ending balance	[2],[12],[15]	$ 8,000			8,000
Investment, Identifier [Axis]: IG Investor, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 4,890			$ 4,890
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 400			$ 400
Investment, Identifier [Axis]: IG Investor, LLC, Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					830		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					4,060	[1]	3,600
Gross Additions					830		0
Gross Reductions					0		0
Ending balance		$ 4,890		3,600	$ 4,890		3,600
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%			13.00%
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					18		0
Amount of Interest, Fees or Dividends Credited to Income					31		5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					379	[1]	(27)
Gross Additions					21		3
Gross Reductions					0		0
Ending balance		$ 400		$ (24)	$ 400		$ (24)
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%		13.00%	13.00%		13.00%	13.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					156		0
Amount of Interest, Fees or Dividends Credited to Income					600		634
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					8,693	[1]	9,069
Gross Additions					183		33
Gross Reductions					110		221
Ending balance		$ 8,766	[2]	$ 8,881	$ 8,766	[2]	8,881
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread		5.75%	[15],[17],[19]		5.75%	[15],[17],[19]		5.75%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ 0
Ending balance	[2],[15],[19]	$ 0			$ 0
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.18%	[15]		10.18%	[15]		10.21%	[16]
Spread		5.75%	[15],[17]		5.75%	[15],[17]		5.75%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 6,154
Ending balance	[2],[15]	$ 6,154			$ 6,154
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.18%	[15]		10.18%	[15]		10.21%	[16]
Spread		5.75%	[15],[17]		5.75%	[15],[17]		5.75%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,922
Ending balance	[2],[15]	$ 1,912			$ 1,912
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.46%	[15]		12.46%	[15]		13.78%	[16]
Spread		8.00%	[15],[17]		8.00%	[15],[17]		9.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 295
Ending balance	[2],[15]	$ 295			$ 295
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[16]							13.78%
Spread		7.00%	[15],[17],[19]		7.00%	[15],[17],[19]		9.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 248
Ending balance	[2],[15],[19]	$ 0			$ 0
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.46%	[15]		11.46%	[15]		12.78%	[16]
Spread		7.00%	[15],[17]		7.00%	[15],[17]		8.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,110
Ending balance	[2],[15]	$ 1,234			$ 1,234
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		13.46%	[15]		13.46%	[15]		14.78%	[16]
Spread		9.00%	[15],[17]		9.00%	[15],[17]		10.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,110
Ending balance	[2],[15]	$ 1,234			$ 1,234
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate	[15]	11.46%			11.46%
Spread	[15],[17]	7.00%			7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 443			$ 443
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[8]				1,420
Ending balance	[2],[9],[13]	2,460			2,460
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				510
Ending balance	[2],[12]	$ 490			490
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[16],[25]							11.39%
Spread	[16],[18],[25]							7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[25]				791
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[16]							11.62%
Spread	[16],[18]							7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				10,280
Investment, Identifier [Axis]: Implus Footcare, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[10],[16]							13.73%
Spread	[10],[16],[18]							7.75%
PIK Rate	[6],[10],[16]							1.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[10],[16]				$ 14,524
Investment, Identifier [Axis]: Implus Footcare, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15]	10.45%			10.45%
Spread	[15],[17]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 776			$ 776
Investment, Identifier [Axis]: Implus Footcare, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[15]	13.70%			13.70%
Spread	[7],[15],[17]	7.75%			7.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[7],[15]	$ 10,236			$ 10,236
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(230)		150
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,290	[1],[10]	6,320
Gross Additions					0		150
Gross Reductions					230		0
Ending balance		7,060	[2],[12]	6,470	7,060	[2],[12]	6,470
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				2,310
Ending balance	[2],[13]	$ 2,180			$ 2,180
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 3,763
Ending balance	[2]	$ 4,093			4,093
Investment, Identifier [Axis]: Insight Borrower Corporation, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				120
Ending balance	[2]	$ 120			$ 120
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.25%	[15],[17],[19]		6.25%	[15],[17],[19]		6.25%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (32)
Ending balance	[2],[15],[19]	$ (27)			(27)
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[16],[18],[20]							6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (27)
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[15]	10.52%			10.52%
Spread	[15],[17]	6.25%			6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 15,729			$ 15,729
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[16]							10.87%
Spread	[16],[18]							6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 7,869
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[15]	14.42%			14.42%
Spread	[14],[15],[17]	10.00%			10.00%
PIK Rate	[5],[14],[15]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[14],[15]	$ 678			$ 678
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[15]	14.42%			14.42%
Spread	[15],[17]	10.00%			10.00%
PIK Rate	[5],[15]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 5,823			$ 5,823
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[15]	14.42%			14.42%
Spread	[15],[17]	10.00%			10.00%
PIK Rate	[5],[15]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 1,173			$ 1,173
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[15]	14.42%			14.42%
Spread	[15],[17]	10.00%			10.00%
PIK Rate	[5],[15]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 271			$ 271
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				21
Ending balance	[2]	30			30
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[16],[25]							14.69%
Spread	[16],[18],[25]							10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[25]				620
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[16]							14.58%
Spread	[16],[18]							10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				5,681
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[16]							14.58%
Spread	[16],[18]							10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				1,144
Investment, Identifier [Axis]: Integral Energy Services, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	810			810
Investment, Identifier [Axis]: Integral Energy Services, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					170		450
Amount of Interest, Fees or Dividends Credited to Income					0		25
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					640	[1]	190
Gross Additions					170		450
Gross Reductions					0		0
Ending balance		$ 810		$ 640	810		$ 640
Investment, Identifier [Axis]: Integral Energy Services, Preferred Equity
Schedule of Investments [Line Items]
Total Rate				10.00%			10.00%	10.00%	[11]
PIK Rate				10.00%			10.00%	10.00%	[6],[11]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							153
Amount of Interest, Fees or Dividends Credited to Income							17
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 535	[1],[11]	350
Gross Additions							170
Gross Reductions							0
Ending balance				$ 520			$ 520
Investment, Identifier [Axis]: Integral Energy Services, Preferred Equity 1
Schedule of Investments [Line Items]
Total Rate	[13]	10.00%			10.00%
PIK Rate	[5],[13]	10.00%			10.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					60
Amount of Interest, Fees or Dividends Credited to Income					15
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					535
Gross Additions					75
Gross Reductions					0
Ending balance	[2],[13]	$ 610			$ 610
Investment, Identifier [Axis]: Integral Energy Services, Preferred Equity 2
Schedule of Investments [Line Items]
Total Rate		10.00%			10.00%
PIK Rate	[5]	10.00%			10.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					97
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					230
Gross Reductions					0
Ending balance	[2]	$ 230			$ 230
Investment, Identifier [Axis]: Integral Energy Services, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.06%		13.06%	12.06%		13.06%	12.35%	[16]
Spread		7.50%		7.50%	7.50%		7.50%	7.50%	[16],[18]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(217)		388
Amount of Interest, Fees or Dividends Credited to Income					979		1,113
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					14,872	[1],[16]	16,232
Gross Additions					33		442
Gross Reductions					968		1,835
Ending balance		$ 13,937		$ 14,839	$ 13,937		14,839
Investment, Identifier [Axis]: Integral Energy Services, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[15]	12.06%			12.06%
Spread	[15],[17]	7.50%			7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 13,937			$ 13,937
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				0
Ending balance	[2]	$ 0			$ 0
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		14.43%	[14],[31]		14.43%	[14],[31]		14.54%	[24],[25]
Spread		10.00%	[14],[17],[31]		10.00%	[14],[17],[31]		10.00%	[18],[24],[25]
PIK Rate		14.43%	[5],[14],[31]		14.43%	[5],[14],[31]		14.54%	[6],[24],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[24],[25]				$ 1,580
Ending balance	[2],[14],[31]	$ 1,850			$ 1,850
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.43%	[7],[15],[31]		11.43%	[7],[15],[31]		11.67%	[16],[23],[24]
Spread		7.00%	[7],[15],[17],[31]		7.00%	[7],[15],[17],[31]		7.00%	[16],[18],[23],[24]
PIK Rate		11.43%	[5],[7],[15],[31]		11.43%	[5],[7],[15],[31]		11.67%	[6],[16],[23],[24]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[23],[24]				$ 13
Ending balance	[2],[7],[15],[31]	$ 11			$ 11
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.98%	[14],[15]		11.98%	[14],[15]		12.01%	[16],[25]
Spread		7.50%	[14],[15],[17]		7.50%	[14],[15],[17]		7.50%	[16],[18],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[25]				$ 996
Ending balance	[2],[14],[15]	$ 963			$ 963
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.98%	[15]		11.98%	[15]		12.01%	[16]
Spread		7.50%	[15],[17]		7.50%	[15],[17]		7.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 16,098
Ending balance	[2],[15]	$ 15,347			15,347
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				710
Ending balance	[2]	$ 680			$ 680
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Preferred Equity
Schedule of Investments [Line Items]
Total Rate		25.00%			25.00%			25.00%
PIK Rate		25.00%	[5]		25.00%	[5]		25.00%	[6]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 190
Ending balance	[2]	$ 230			$ 230
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 1,113
Ending balance	[2]	$ 1,116			$ 1,116
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 725
Ending balance	[2]	$ 727			$ 727
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 2,236
Ending balance	[2]	$ 2,236			$ 2,236
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 4,344
Ending balance	[2]	$ 4,354			$ 4,354
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 2,379
Ending balance	[2]	$ 2,322			2,322
Investment, Identifier [Axis]: Isagenix International, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				0
Ending balance	[2]	$ 0			$ 0
Investment, Identifier [Axis]: Isagenix International, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		2.50%	[15],[44]		2.50%	[15],[44]		11.25%	[16]
Spread	[16],[18]							6.60%
PIK Rate	[6],[16]							8.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 622
Ending balance	[2],[15],[44]	$ 429			$ 429
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15]	11.57%			11.57%
Spread		7.00%	[15],[17]		7.00%	[15],[17]		6.50%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (5)
Ending balance	[2],[15]	$ 178			$ 178
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.56%	[15],[43]		10.56%	[15],[43]		10.35%	[16]
Spread		6.00%	[15],[17],[43]		6.00%	[15],[17],[43]		5.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,722
Ending balance	[2],[15],[43]	$ 2,065			$ 2,065
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.56%	[15],[43]		11.56%	[15],[43]		11.35%	[16]
Spread		7.00%	[15],[17],[43]		7.00%	[15],[17],[43]		6.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,722
Ending balance	[2],[15],[43]	$ 2,065			$ 2,065
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		12.56%	[15],[43]		12.56%	[15],[43]		12.35%	[16]
Spread		8.00%	[15],[17],[43]		8.00%	[15],[17],[43]		7.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,722
Ending balance	[2],[15],[43]	$ 2,065			$ 2,065
Investment, Identifier [Axis]: JDC Power Services, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.25%	[15],[17],[19]		6.25%	[15],[17],[19]		6.50%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (47)
Ending balance	[2],[15],[19]	$ (41)			$ (41)
Investment, Identifier [Axis]: JDC Power Services, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.55%	[15]		10.55%	[15]		10.83%	[16]
Spread		6.25%	[15],[17]		6.25%	[15],[17]		6.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 17,489
Ending balance	[2],[15]	$ 17,447			17,447
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Common Eqiuty
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				30
Ending balance	[2]	$ 0			$ 0
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.80%	[7],[14],[15]		10.80%	[7],[14],[15]		12.72%	[16],[25]
Spread		6.25%	[7],[14],[15],[17]		6.25%	[7],[14],[15],[17]		8.00%	[16],[18],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[25]				$ 665
Ending balance	[2],[7],[14],[15]	$ 530			$ 530
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.80%	[7],[15]		10.80%	[7],[15]		12.58%	[16]
Spread		6.25%	[7],[15],[17]		6.25%	[7],[15],[17]		8.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 2,823
Ending balance	[2],[7],[15]	$ 2,221			$ 2,221
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.80%	[7],[15]		10.80%	[7],[15]		12.58%	[16]
Spread		6.25%	[7],[15],[17]		6.25%	[7],[15],[17]		8.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 265
Ending balance	[2],[7],[15]	$ 208			208
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Preferred Eqiuty
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				1,740
Ending balance	[2]	$ 1,550			$ 1,550
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.41%	[15],[43]		11.41%	[15],[43]		12.18%	[16],[45]
Spread		7.00%	[15],[17],[43]		7.00%	[15],[17],[43]		7.50%	[16],[18],[45]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[45]				$ 1,585
Ending balance	[2],[15],[43]	$ 1,542			$ 1,542
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.38%	[15],[43]		11.38%	[15],[43]		12.19%	[16]
Spread		7.00%	[15],[17],[43]		7.00%	[15],[17],[43]		7.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,251
Ending balance	[2],[15],[43]	$ 1,251			$ 1,251
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.45%	[15],[43]		11.45%	[15],[43]		12.18%	[16]
Spread		7.00%	[15],[17],[43]		7.00%	[15],[17],[43]		7.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 121
Ending balance	[2],[15],[43]	$ 1,333			$ 1,333
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		11.38%	[15]		11.38%	[15]		12.18%	[16]
Spread		7.00%	[15],[17]		7.00%	[15],[17]		7.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 3,685
Ending balance	[2],[15]	$ 3,581			3,581
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 290			290
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				0
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 110
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.13%	[15]		13.13%	[15]		21.59%	[16],[23],[24]
Spread		8.75%	[15],[17]		8.75%	[15],[17]		16.00%	[16],[18],[23],[24]
PIK Rate		6.00%	[5],[15]		6.00%	[5],[15]		21.59%	[6],[16],[23],[24]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[23],[24]				$ 0
Ending balance	[2],[15]	$ 1,515			$ 1,515
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.13%	[15]		13.13%	[15]		21.59%	[16],[23],[24]
Spread		8.75%	[15],[17]		8.75%	[15],[17]		16.00%	[16],[18],[23],[24]
PIK Rate		6.00%	[5],[15]		6.00%	[5],[15]		21.59%	[6],[16],[23],[24]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[23],[24]				$ 0
Ending balance	[2],[15]	$ 1,131			1,131
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[16]							13.21%
Spread	[16],[18]							8.75%
PIK Rate	[6],[16]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				1,470
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[16]							13.18%
Spread	[16],[18]							8.75%
PIK Rate	[6],[16]							13.18%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,091
Investment, Identifier [Axis]: JorVet Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 2,568
Ending balance	[2]	$ 2,573			2,573
Investment, Identifier [Axis]: JorVet Holdings, LLC., Preferred Eqiuty
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				1,460
Ending balance	[2],[13]	$ 1,500			$ 1,500
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.50%			12.50%
PIK Rate		12.50%			12.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					76
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					1,392
Gross Reductions					0
Ending balance		$ 1,392			$ 1,392
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1b
Schedule of Investments [Line Items]
Total Rate		14.50%			14.50%
Spread		9.75%			9.75%
Amount of Realized Gain/(Loss)					$ (3,788)
Amount of Unrealized Gain/(Loss)					3,202
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,973
Gross Additions					0
Gross Reductions					5,973
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1e
Schedule of Investments [Line Items]
Total Rate		14.23%			14.23%
Spread		9.75%			9.75%
PIK Rate		14.23%			14.23%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%			12.50%
PIK Rate		12.50%			12.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					70
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					1,476
Gross Reductions					0
Ending balance		$ 1,476			1,476
Investment, Identifier [Axis]: KMS, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					6,113
Gross Reductions					0
Ending balance	[2]	$ 6,113			$ 6,113
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.50%			12.50%
PIK Rate	[5]	12.50%			12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 1,392			$ 1,392
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1a
Schedule of Investments [Line Items]
Total Rate		14.50%			14.50%
Spread		9.75%			9.75%
Amount of Realized Gain/(Loss)					$ (511)
Amount of Unrealized Gain/(Loss)					409
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					829
Gross Additions					0
Gross Reductions					829
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1c
Schedule of Investments [Line Items]
Spread		9.75%			9.75%
PIK Rate		14.23%			14.23%
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					562
Gross Additions					0
Gross Reductions					562
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1d
Schedule of Investments [Line Items]
Spread		9.75%			9.75%
PIK Rate		14.23%			14.23%
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					550
Gross Additions					0
Gross Reductions					550
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%			12.50%
PIK Rate	[5]	12.50%			12.50%
Investment, Identifier [Axis]: KMS, LLC, Wholesaler of Closeout and Value-priced Products, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[16],[23]							14.50%
Spread	[16],[18],[23]							9.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[23]				$ 829
Investment, Identifier [Axis]: KMS, LLC, Wholesaler of Closeout and Value-priced Products, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[16]							14.23%
Spread	[16],[18]							9.75%
PIK Rate	[6],[16]							14.23%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				562
Investment, Identifier [Axis]: KMS, LLC, Wholesaler of Closeout and Value-priced Products, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[16]							14.23%
Spread	[16],[18]							9.75%
PIK Rate	[6],[16]							14.23%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				550
Investment, Identifier [Axis]: KMS, LLC, Wholesaler of Closeout and Value-priced Products, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[16],[23]							14.50%
Spread	[16],[18],[23]							9.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[23]				5,973
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, , Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 3,570			3,570
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(60)
Amount of Interest, Fees or Dividends Credited to Income					15		16
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					678	[1],[11],[27]	683
Gross Additions					0		0
Gross Reductions					0		60
Ending balance		678	[2],[13],[26]	623	678	[2],[13],[26]	623
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					510		560
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,060	[1]	2,420
Gross Additions					510		560
Gross Reductions					0		0
Ending balance		$ 3,570		$ 2,980	$ 3,570		$ 2,980
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.00%		12.00%	12.00%		12.00%	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					211		294
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,741	[1]	4,933
Gross Additions					3		5
Gross Reductions					400		601
Ending balance		$ 3,344	[2]	$ 4,337	$ 3,344	[2]	$ 4,337
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9.00%		9.00%	9.00%		9.00%	9.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					45		44
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					982	[1]	951
Gross Additions					0		41
Gross Reductions					6		5
Ending balance		$ 976	[2]	$ 987	$ 976	[2]	987
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.84%	[15]		11.84%	[15]		11.89%	[16]
Spread		7.25%	[15],[17]		7.25%	[15],[17]		7.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 701
Ending balance	[2],[15]	$ 701			$ 701
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.84%	[15]		11.84%	[15]		11.92%	[16]
Spread		7.25%	[15],[17]		7.25%	[15],[17]		7.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 7,850
Ending balance	[2],[15]	$ 7,806			$ 7,806
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.84%	[15]		11.84%	[15]		11.71%	[16]
Spread		7.25%	[15],[17]		7.25%	[15],[17]		7.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 5,181
Ending balance	[2],[15]	$ 5,154			$ 5,154
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		11.84%	[15]		11.84%	[15]		11.92%	[16]
Spread		7.25%	[15],[17]		7.25%	[15],[17]		7.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 860
Ending balance	[2],[15]	$ 856			$ 856
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 5
Schedule of Investments [Line Items]
Total Rate		11.84%	[15]		11.84%	[15]		11.71%	[16]
Spread		7.25%	[15],[17]		7.25%	[15],[17]		7.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 8,716
Ending balance	[2],[15]	$ 8,673			$ 8,673
Investment, Identifier [Axis]: LLFlex, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.45%	[12],[15]		12.45%	[12],[15]		12.74%	[10],[16]
Spread		8.00%	[12],[15],[17]		8.00%	[12],[15],[17]		8.00%	[10],[16],[18]
PIK Rate		3.00%	[5],[12],[15]		3.00%	[5],[12],[15]		3.00%	[6],[10],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[10],[16]				$ 3,684
Ending balance	[2],[12],[15]	$ 3,511			3,511
Investment, Identifier [Axis]: Lightbox Holdings, L.P., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[46]							9.44%
Spread	[18],[46]							5.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[46]				5,534
Investment, Identifier [Axis]: Logix Acquisition Company, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[10],[16],[24]							12.25%
Spread	[10],[16],[18],[24]							4.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[10],[16],[24]				$ 9,191
Investment, Identifier [Axis]: Logix Acquisition Company, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15]	10.07%			10.07%
Spread	[15],[17]	5.75%			5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 19,292			$ 19,292
Investment, Identifier [Axis]: Logix Acquisition Company, LLC, Secured Debt 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	938			938
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							80
Gross Additions							0
Gross Reductions							0
Ending balance				80			80
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
Investment, Identifier [Axis]: MH Corbin Holding LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate				14.00%			14.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							92
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							1,256
Gross Additions							0
Gross Reductions							40
Ending balance				$ 1,216			1,216
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[16],[18],[20]							7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				0
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[16]							12.00%
Spread	[16],[18]							7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				21,081
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				500
Ending balance	[2],[13]	$ 500			$ 500
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Total Rate		8.00%	[13]		8.00%	[13]		8.00%	[11]
PIK Rate		8.00%	[5],[13]		8.00%	[5],[13]		8.00%	[6],[11]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				$ 470
Ending balance	[2],[13]	$ 443			443
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[20]				0
Ending balance	[2],[19]	$ 0			$ 0
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9.75%			9.75%			9.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 1,513
Ending balance	[2]	$ 1,363			$ 1,363
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		5.75%	[15],[17],[19]		5.75%	[15],[17],[19]		5.75%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (5)
Ending balance	[2],[15],[19]	$ (4)			$ (4)
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.17%	[15]		10.17%	[15]		10.22%	[16]
Spread		5.75%	[15],[17]		5.75%	[15],[17]		5.75%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,342
Ending balance	[2],[15]	$ 1,335			$ 1,335
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.18%	[15]		10.18%	[15]		10.21%	[16]
Spread		5.75%	[15],[17]		5.75%	[15],[17]		5.75%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 2,389
Ending balance	[2],[15]	$ 2,129			2,129
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[13],[26]	$ 10,390			$ 10,390
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15]	9.79%			9.79%
Spread	[15],[17]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 2,230			$ 2,230
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[15],[17],[19]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15],[19]	$ 0			$ 0
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(1,225)
Amount of Interest, Fees or Dividends Credited to Income					449
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					11,166
Gross Additions					450
Gross Reductions					1,226
Ending balance		$ 10,390			$ 10,390
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		9.79%			9.79%
Spread		5.50%			5.50%
PIK Rate		9.79%			9.79%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					93
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					2,230
Gross Reductions					0
Ending balance		$ 2,230			2,230
Investment, Identifier [Axis]: Mini Melts of America, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				280
Ending balance	[2]	$ 220			$ 220
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.54%	[14],[15]		10.54%	[14],[15]		10.74%	[16],[25]
Spread		6.25%	[14],[15],[17]		6.25%	[14],[15],[17]		6.25%	[16],[18],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[25]				$ 375
Ending balance	[2],[14],[15]	$ 819			$ 819
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.56%	[15],[43]		10.56%	[15],[43]		10.77%	[16],[45]
Spread		6.25%	[15],[17],[43]		6.25%	[15],[17],[43]		6.25%	[16],[18],[45]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[45]				$ 858
Ending balance	[2],[15],[43]	$ 825			$ 825
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		9.58%	[15]		9.58%	[15]		9.76%	[16]
Spread		5.25%	[15],[17]		5.25%	[15],[17]		5.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 3,201
Ending balance	[2],[15]	$ 3,054			$ 3,054
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		11.58%	[15]		11.58%	[15]		11.76%	[16]
Spread		7.25%	[15],[17]		7.25%	[15],[17]		7.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 3,201
Ending balance	[2],[15]	$ 3,056			3,056
Investment, Identifier [Axis]: Mission Critical Group, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 2,680			$ 2,680
Investment, Identifier [Axis]: Mission Critical Group, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[15],[17],[19]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15],[19]	$ (61)			$ (61)
Investment, Identifier [Axis]: Mission Critical Group, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[15],[17],[19]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15],[19]	$ (73)			$ (73)
Investment, Identifier [Axis]: Mission Critical Group, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[15]	10.28%			10.28%
Spread	[15],[17]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 18,178			$ 18,178
Investment, Identifier [Axis]: MoneyThumb Acquisition, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		12.00%	[13]		12.00%	[13]		12.00%	[11]
PIK Rate		12.00%	[5],[13]		12.00%	[5],[13]		12.00%	[6],[11]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				$ 427
Ending balance	[2],[13]	$ 453			$ 453
Investment, Identifier [Axis]: MoneyThumb Acquisition, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14.00%			14.00%			14.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 2,197
Ending balance	[2]	$ 2,145			2,145
Investment, Identifier [Axis]: MoneyThumb Acquisition, LLC, Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[8]				148
Ending balance	[2],[9]	148			148
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				226
Ending balance	[2]	$ 174			$ 174
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.81%	[15]		10.81%	[15]		11.59%	[16]
Spread		6.25%	[15],[17]		6.25%	[15],[17]		7.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,125
Ending balance	[2],[15]	$ 1,272			$ 1,272
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.81%	[15]		10.81%	[15]		11.59%	[16]
Spread		6.25%	[15],[17]		6.25%	[15],[17]		7.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 3,160
Ending balance	[2],[15]	$ 3,555			$ 3,555
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.81%	[15]		10.81%	[15]		11.59%	[16]
Spread		6.25%	[15],[17]		6.25%	[15],[17]		7.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 5,213
Ending balance	[2],[15]	$ 5,188			$ 5,188
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[15]	10.81%			10.81%
Spread	[15],[17]	6.25%			6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 349			$ 349
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Unsecured Debt 1
Schedule of Investments [Line Items]
Total Rate		8.00%	[19]		8.00%	[19]		8.00%
PIK Rate		8.00%	[5],[19]		8.00%	[5],[19]		8.00%	[6]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 34
Ending balance	[2],[19]	$ 0			$ 0
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Unsecured Debt 2
Schedule of Investments [Line Items]
Total Rate		8.00%			8.00%			8.00%
PIK Rate		8.00%	[5]		8.00%	[5]		8.00%	[6]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 15
Ending balance	[2]	$ 32			$ 32
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Unsecured Debt 3
Schedule of Investments [Line Items]
Total Rate		8.00%			8.00%			8.00%
PIK Rate		8.00%	[5]		8.00%	[5]		8.00%	[6]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 31
Ending balance	[2]	$ 22			22
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[13]	6,700			6,700
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[19]	$ 0			$ 0
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%			10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 1,436			$ 1,436
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[10],[27]				11,166
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)					110		(68)
Amount of Interest, Fees or Dividends Credited to Income					493		481
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,590	[1],[11]	6,598
Gross Additions					110		0
Gross Reductions					0		68
Ending balance		6,700		6,530	6,700		6,530
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1		1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[1],[20]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%		10.00%	10.00%		10.00%	10.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(1)		5
Amount of Interest, Fees or Dividends Credited to Income					73		73
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,436	[1]	1,436
Gross Additions					1		0
Gross Reductions					1		0
Ending balance		$ 1,436		$ 1,436	1,436		1,436
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					670		0
Amount of Interest, Fees or Dividends Credited to Income					100		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,890		0
Gross Additions					670		3,030
Gross Reductions					0		0
Ending balance		4,560		$ 3,030	4,560		$ 3,030
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[13]	$ 4,560			$ 4,560
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.50%			13.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 6,639			$ 6,639
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%		13.50%	13.50%		13.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					482		66
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,619		0
Gross Additions					20		6,017
Gross Reductions					0		0
Ending balance		$ 6,639		$ 6,017	6,639		$ 6,017
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				$ 3,890
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				11.88%			11.88%
Spread		6.50%		6.50%	6.50%		6.50%	6.50%	[16],[18],[20]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					12		22
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(12)	[1],[16],[20]	0
Gross Additions					12		2,729
Gross Reductions					0		0
Ending balance		$ 0		$ 2,729	0		2,729
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate								13.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				6,619
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)					130		457
Amount of Interest, Fees or Dividends Credited to Income					108		118
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,970	[1],[11]	1,590
Gross Additions					130		460
Gross Reductions					0		0
Ending balance		3,100	[2],[13]	$ 2,050	3,100	[2],[13]	$ 2,050
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				10.00%			10.00%
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		11
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[1]	0
Gross Additions					0		400
Gross Reductions					0		0
Ending balance		0		$ 400	0		$ 400
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				10.00%			10.00%	9.00%
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					(3)		10
Amount of Interest, Fees or Dividends Credited to Income					38		132
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,453	[1]	2,435
Gross Additions					3		18
Gross Reductions					2,456		0
Ending balance		$ 0		$ 2,453	0		2,453
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[16],[18],[20]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				(3)
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[16]							11.24%
Spread	[16],[18]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 14,436
Investment, Identifier [Axis]: Northwind Midstream Partners LLC
Schedule of Investments [Line Items]
Total Rate	[12],[15]	10.70%			10.70%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[12],[15]	$ 12,375			$ 12,375
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15],[31]	10.98%			10.98%
Spread	[15],[17],[31]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15],[31]	$ 600			$ 600
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[31]	12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[31]	$ 4,610			$ 4,610
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				1,500
Ending balance	[2]	1,500			1,500
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					160		240
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,890		2,310
Gross Additions					160		240
Gross Reductions					0		0
Ending balance		3,050		2,550	3,050		2,550
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				2,890
Ending balance	[2]	3,050			3,050
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,500		1,290
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 1,500		$ 1,290	$ 1,500		$ 1,290
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.98%		11.98%	10.98%		11.98%	11.16%	[16]
Spread		6.50%		6.50%	6.50%		6.50%	6.50%	[16],[18]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					51		55
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					900	[1],[16]	899
Gross Additions					0		0
Gross Reductions					300		0
Ending balance		$ 600		$ 899	$ 600		$ 899
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%		12.00%	12.00%		12.00%	12.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					278		281
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,610	[1]	4,606
Gross Additions					0		2
Gross Reductions					0		0
Ending balance		$ 4,610		$ 4,608	$ 4,610		4,608
Investment, Identifier [Axis]: Obra Capital, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.25%	[15],[17],[19]		7.25%	[15],[17],[19]		7.50%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (14)
Ending balance	[2],[15],[19]	$ (12)			$ (12)
Investment, Identifier [Axis]: Obra Capital, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.68%	[15]		11.68%	[15]		11.97%	[16]
Spread		7.25%	[15],[17]		7.25%	[15],[17]		7.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 11,766
Ending balance	[2],[15]	$ 11,919			$ 11,919
Investment, Identifier [Axis]: Obra Capital, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[15]	11.68%			11.68%
Spread	[15],[17]	7.25%			7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 1,355			$ 1,355
Investment, Identifier [Axis]: OnPoint Industrial Services, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.30%	[15]		10.30%	[15]		11.35%	[16]
Spread		6.00%	[15],[17]		6.00%	[15],[17]		7.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,040
Ending balance	[2],[15]	$ 1,045			$ 1,045
Investment, Identifier [Axis]: OnPoint Industrial Services, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.30%	[15]		10.30%	[15]		11.33%	[16]
Spread		6.00%	[15],[17]		6.00%	[15],[17]		7.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 2,888
Ending balance	[2],[15]	$ 2,903			2,903
Investment, Identifier [Axis]: Oneliance, LLC, Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							128
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					640	[1]	282
Gross Additions							128
Gross Reductions							0
Ending balance		770	[2],[13]	$ 410	770	[2],[13]	$ 410
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate				15.48%			15.48%
Spread				10.00%			10.00%
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					130		18
Amount of Interest, Fees or Dividends Credited to Income					13		111
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					640		1,339
Gross Additions					130		21
Gross Reductions					0		60
Ending balance		770		$ 1,300	770		1,300
Investment, Identifier [Axis]: Orttech Holdings, LLC, Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[26]	$ 3,360			$ 3,360
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[15],[17],[19]	11.00%			11.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15],[19]	$ 0			$ 0
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[15]	15.48%			15.48%
Spread	[15],[17]	11.00%			11.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 5,290			$ 5,290
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)					0		(490)
Amount of Interest, Fees or Dividends Credited to Income					30		66
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,360	[1],[11],[27]	4,260
Gross Additions					0		0
Gross Reductions					0		490
Ending balance		$ 3,360		$ 3,770	$ 3,360		$ 3,770
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		11.00%		11.00%	11.00%		11.00%	11.00%	[16],[18],[20]
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	[1],[16],[20]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.48%		16.48%	15.48%		16.48%	15.66%	[16]
Spread		11.00%		11.00%	11.00%		11.00%	11.00%	[16],[18]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(12)		(11)
Amount of Interest, Fees or Dividends Credited to Income					431		469
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,490	[1],[16]	5,510
Gross Additions					12		11
Gross Reductions					212		31
Ending balance		$ 5,290		$ 5,490	5,290		5,490
Investment, Identifier [Axis]: Other Amounts related to investments transferred to or from other 1940 Act classification during the period, Affiliate Investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					4,301		0
Amount of Unrealized Gain/(Loss)					(3,611)		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					(7,914)		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0		0	0		0
Investment, Identifier [Axis]: Other Amounts related to investments transferred to or from other 1940 Act classification during the period, Control Investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					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
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.78%	[14],[15]		12.78%	[14],[15]		13.03%	[16]
Spread		8.25%	[14],[15],[17]		8.25%	[14],[15],[17]		8.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 443
Ending balance	[2],[14],[15]	$ 445			$ 445
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.84%	[15]		12.84%	[15]		13.03%	[16]
Spread		8.25%	[15],[17]		8.25%	[15],[17]		8.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,155
Ending balance	[2],[15]	$ 1,065			1,065
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread								11.75%
Investment, Identifier [Axis]: Peaches Holding Corporation, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				1,140
Ending balance	[2]	$ 0			$ 0
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 6,960			$ 6,960
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[13]	4,890			4,890
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[19]	0			0
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					300		705
Amount of Interest, Fees or Dividends Credited to Income					255		213
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,590	[1],[11]	3,135
Gross Additions					300		705
Gross Reductions					0		0
Ending balance		4,890		3,840	4,890		3,840
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(1)		0
Amount of Interest, Fees or Dividends Credited to Income					2		3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[1],[20]	105
Gross Additions					1		1
Gross Reductions					1		115
Ending balance		$ 0		$ (9)	$ 0		$ (9)
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%		13.00%	13.00%		13.00%	13.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(21)		0
Amount of Interest, Fees or Dividends Credited to Income					486		522
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,160	[1]	7,472
Gross Additions					21		18
Gross Reductions					221		0
Ending balance		$ 6,960		$ 7,490	6,960		7,490
Investment, Identifier [Axis]: Power System Solutions, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				1,640
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[16],[18],[20]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				(27)
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[16]							10.86%
Spread	[16],[18]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				2,640
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[16]							10.90%
Spread	[16],[18]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 7,859
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		9.78%	[15]		9.78%	[15]		10.58%	[16]
Spread		5.50%	[15],[17]		5.50%	[15],[17]		5.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 5,910
Ending balance	[2],[15]	$ 5,880			$ 5,880
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9.80%	[15]		9.80%	[15]		9.83%	[16]
Spread		5.50%	[15],[17]		5.50%	[15],[17]		5.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 564
Ending balance	[2],[15]	$ 561			$ 561
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		9.80%	[15]		9.80%	[15]		9.83%	[16]
Spread		5.50%	[15],[17]		5.50%	[15],[17]		5.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 567
Ending balance	[2],[15]	$ 564			$ 564
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		9.55%	[15]		9.55%	[15]		9.58%	[16]
Spread		5.25%	[15],[17]		5.25%	[15],[17]		5.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 644
Ending balance	[2],[15]	$ 641			$ 641
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate	[15]	9.52%			9.52%
Spread	[15],[17]	5.25%			5.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 1,421			$ 1,421
Investment, Identifier [Axis]: Purge Rite, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				820
Ending balance	[2]	2,580			2,580
Investment, Identifier [Axis]: Purge Rite, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				1,289
Ending balance	[2]	$ 1,289			$ 1,289
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15]	11.25%			11.25%
Spread	[15],[17]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 1,110			$ 1,110
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[15]	11.25%			11.25%
Spread	[15],[17]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 1			$ 1
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread	[15],[17],[19]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15],[19]	$ 0			$ 0
Investment, Identifier [Axis]: RA Outdoors LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 0			$ 0
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		11.25%			11.25%
Spread	[15],[17]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 11,605			$ 11,605
Investment, Identifier [Axis]: RA Outdoors LLC, Common Equity
Schedule of Investments [Line Items]
Spread	[18]							6.75%
PIK Rate	[6]							11.59%
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]				0
Gross Additions					0
Gross Reductions					0
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.25%			11.25%			11.74%	[16]
Spread		6.75%			6.75%			6.75%	[16],[18]
PIK Rate	[6],[16]							11.74%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(143)
Amount of Interest, Fees or Dividends Credited to Income					76
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				1,215
Gross Additions					40
Gross Reductions					145
Ending balance		$ 1,110			$ 1,110
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.25%			11.25%			11.74%	[16]
Spread		6.75%			6.75%			6.75%	[16],[18]
PIK Rate	[6],[16]							11.74%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(1,500)
Amount of Interest, Fees or Dividends Credited to Income					796
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				12,710
Gross Additions					410
Gross Reductions					1,515
Ending balance		$ 11,605			$ 11,605
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.25%			11.25%
Spread		6.75%			6.75%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					1
Gross Reductions					0
Ending balance		$ 1			$ 1
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[16],[25]							11.22%
Spread		6.50%	[14],[15],[17],[19]		6.50%	[14],[15],[17],[19]		6.75%	[16],[18],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[25]				$ 1,075
Ending balance	[2],[14],[15],[19]	$ 0			$ 0
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.78%	[15]		10.78%	[15]		11.38%	[16]
Spread		6.50%	[15],[17]		6.50%	[15],[17]		6.75%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 10,288
Ending balance	[2],[15]	$ 10,155			$ 10,155
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.71%	[15]		10.71%	[15]		11.43%	[16]
Spread		6.50%	[15],[17]		6.50%	[15],[17]		6.75%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 5,065
Ending balance	[2],[15]	$ 5,001			5,001
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	0			0
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)					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	[1]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 1
Schedule of Investments [Line Items]
PIK Rate		10.00%	[5],[7],[19]	10.00%	10.00%	[5],[7],[19]	10.00%	10.00%	[6],[20],[23]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(7)	[1],[20],[23]	(6)
Gross Additions					0		1
Gross Reductions					1		0
Ending balance		$ (8)	[2],[7],[19]	$ (5)	$ (8)	[2],[7],[19]	$ (5)
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%	[7]	12.50%	12.50%	[7]	12.50%	12.50%	[23]
PIK Rate		10.00%	[5],[7]	10.00%	10.00%	[5],[7]	10.00%	10.00%	[6],[23]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		(1,444)
Amount of Interest, Fees or Dividends Credited to Income					0		123
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,617	[1],[23]	3,421
Gross Additions					0		5
Gross Reductions					38		1,494
Ending balance		$ 1,579	[2],[7]	$ 1,932	$ 1,579	[2],[7]	1,932
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		8.00%	[15],[17],[19]		8.00%	[15],[17],[19]		8.00%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ 0
Ending balance	[2],[15],[19]	$ 0			$ 0
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.56%	[15]		11.56%	[15]		11.85%	[16]
Spread		7.00%	[15],[17]		7.00%	[15],[17]		7.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 3,840
Ending balance	[2],[15]	$ 3,627			$ 3,627
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.56%	[15]		13.56%	[15]		13.85%	[16]
Spread		9.00%	[15],[17]		9.00%	[15],[17]		9.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 3,815
Ending balance	[2],[15]	$ 3,619			$ 3,619
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.49%	[15]		12.49%	[15]		12.52%	[16]
Spread		8.00%	[15],[17]		8.00%	[15],[17]		8.00%	[16],[18]
PIK Rate		2.00%	[5],[15]		2.00%	[5],[15]		2.00%	[6],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 6,542
Ending balance	[2],[15]	$ 6,608			$ 6,608
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.49%	[15]		12.49%	[15]		12.52%	[16]
Spread		8.00%	[15],[17]		8.00%	[15],[17]		8.00%	[16],[18]
PIK Rate		2.00%	[5],[15]		2.00%	[5],[15]		2.00%	[6],[16]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 8,277
Ending balance	[2],[15]	$ 7,896			7,896
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)					(400)		(500)
Amount of Interest, Fees or Dividends Credited to Income					0		619
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,550		6,390
Gross Additions					0		0
Gross Reductions					400		500
Ending balance		$ 4,150	[2]	$ 5,890	$ 4,150	[2]	$ 5,890
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.85%		11.75%	11.85%		11.75%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(1)		1
Amount of Interest, Fees or Dividends Credited to Income					49		39
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					750		375
Gross Additions					1		750
Gross Reductions					1		375
Ending balance		$ 750		$ 750	$ 750		750
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.79%			12.79%
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					15		(161)
Amount of Interest, Fees or Dividends Credited to Income					1,457		947
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					22,554		18,179
Gross Additions					0		0
Gross Reductions					0		18,179
Ending balance		$ 22,554		$ 0	22,554		$ 0
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate				12.62%			12.62%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							24
Amount of Interest, Fees or Dividends Credited to Income							483
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							22,554
Gross Reductions							0
Ending balance				$ 22,554			22,554
Investment, Identifier [Axis]: SI East, LLC, Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				$ 4,550
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.85%			11.85%			11.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 750
Ending balance	[2]	$ 750			$ 750
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.79%	[47]		12.79%	[47]		12.79%	[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[48]				$ 22,554
Ending balance	[2],[47]	$ 22,554			22,554
Investment, Identifier [Axis]: SPAU Holdings, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				190
Ending balance	[2]	$ 220			$ 220
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[15]	11.46%			11.46%
Spread		7.00%	[14],[15],[17]		7.00%	[14],[15],[17]		7.50%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ 0
Ending balance	[2],[14],[15]	$ 660			$ 660
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.45%	[15]		11.45%	[15]		11.98%	[16]
Spread		7.00%	[15],[17]		7.00%	[15],[17]		7.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 4,875
Ending balance	[2],[15]	$ 4,850			4,850
Investment, Identifier [Axis]: Slick Innovations, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				630
Ending balance	[2],[13]	$ 520			$ 520
Investment, Identifier [Axis]: Slick Innovations, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14.00%			14.00%			14.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 4,080
Ending balance	[2]	$ 6,390			6,390
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				62
Ending balance	[2]	$ 66			$ 66
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		5.25%	[15],[17],[19]		5.25%	[15],[17],[19]		5.25%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ 0
Ending balance	[2],[15],[19]	$ 0			$ 0
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9.68%	[15]		9.68%	[15]		9.71%	[16]
Spread		5.25%	[15],[17]		5.25%	[15],[17]		5.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 4,388
Ending balance	[2],[15]	$ 33,214			33,214
Investment, Identifier [Axis]: Student Resource Center, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	0			0
Investment, Identifier [Axis]: Student Resource Center, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[1]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		8.50%			8.50%			8.50%
PIK Rate		8.50%	[5]		8.50%	[5]		8.50%	[6]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					748
Amount of Interest, Fees or Dividends Credited to Income					9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				227
Gross Additions					758
Gross Reductions					0
Ending balance	[2]	$ 985			$ 985
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt 1.1
Schedule of Investments [Line Items]
Total Rate				8.50%			8.50%
PIK Rate				8.50%			8.50%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(1,717)
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							3,543
Gross Additions							0
Gross Reductions							1,717
Ending balance				$ 1,826			1,826
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		8.50%	[7]		8.50%	[7]		8.50%	[23]
PIK Rate		8.50%	[5],[7]		8.50%	[5],[7]		8.50%	[6],[23]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(647)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[23]				1,826
Gross Additions					0
Gross Reductions					647
Ending balance	[2],[7]	$ 1,179			$ 1,179
Investment, Identifier [Axis]: TEC Services, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		5.50%	[15],[17],[19]		5.50%	[15],[17],[19]		5.75%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (7)
Ending balance	[2],[15],[19]	$ (6)			$ (6)
Investment, Identifier [Axis]: TEC Services, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread		5.50%	[15],[17],[19]		5.50%	[15],[17],[19]		5.75%	[16],[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				$ (5)
Ending balance	[2],[15],[19]	$ (5)			$ (5)
Investment, Identifier [Axis]: TEC Services, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		9.90%	[15]		9.90%	[15]		10.13%	[16]
Spread		5.50%	[15],[17]		5.50%	[15],[17]		5.75%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 2,299
Ending balance	[2],[15]	$ 2,295			2,295
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	0			0
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	0			0
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 0			$ 0
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[31]	12.00%			12.00%
PIK Rate	[5],[7],[31]	12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[7],[31]	$ 411			$ 411
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[31]	12.00%			12.00%
PIK Rate	[5],[7],[31]	12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[7],[31]	$ 863			$ 863
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[1]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0		0	0		0
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[1]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0		0	0		0
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 3
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	[1]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.00%		12.00%	12.00%		12.00%	12.00%	[23],[24]
PIK Rate		12.00%		12.00%	12.00%		12.00%	12.00%	[6],[23],[24]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(1)		0
Amount of Interest, Fees or Dividends Credited to Income					0		14
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					412	[1],[23],[24]	432
Gross Additions					0		0
Gross Reductions					1		0
Ending balance		$ 411		$ 432	$ 411		$ 432
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%		12.00%	12.00%		12.00%	12.00%	[23],[24]
PIK Rate		12.00%		12.00%	12.00%		12.00%	12.00%	[6],[23],[24]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(38)		(2,401)
Amount of Interest, Fees or Dividends Credited to Income					0		115
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					901	[1],[23],[24]	3,565
Gross Additions					0		0
Gross Reductions					38		2,401
Ending balance		$ 863		$ 1,164	863		1,164
Investment, Identifier [Axis]: Tex Tech Tennis, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[10],[27]				2,290
Ending balance	[2],[12],[26]	2,350			2,350
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				72
Ending balance	[2],[13]	78			78
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				1,600
Ending balance	[2],[13]	1,600			1,600
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate								10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				98
Ending balance	[2],[19]	$ (1)			$ (1)
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%			10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 1,274
Ending balance	[2]	$ 1,278			$ 1,278
Investment, Identifier [Axis]: Titan Meter Midco Corp., Preferred Equity
Schedule of Investments [Line Items]
Total Rate		8.00%			8.00%			8.00%
PIK Rate		8.00%	[5]		8.00%	[5]		8.00%	[6]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 540
Ending balance	[2]	$ 540			$ 540
Investment, Identifier [Axis]: Titan Meter Midco Corp., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15]	10.81%			10.81%
Spread		6.50%	[15],[17]		6.50%	[15],[17]		6.50%	[18],[20]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[20]				$ (40)
Ending balance	[2],[15]	$ 554			$ 554
Investment, Identifier [Axis]: Titan Meter Midco Corp., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.80%	[15]		10.80%	[15]		10.83%	[16]
Spread		6.50%	[15],[17]		6.50%	[15],[17]		6.50%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 13,049
Ending balance	[2],[15]	$ 12,983			$ 12,983
Investment, Identifier [Axis]: Titan Meter Midco Corp., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[15]	10.80%			10.80%
Spread	[15],[17]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 1,661			$ 1,661
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)					230		(740)
Amount of Interest, Fees or Dividends Credited to Income					15		15
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,140	[1],[11]	3,180
Gross Additions					230		0
Gross Reductions					0		740
Ending balance		2,370	[2],[13]	2,440	2,370	[2],[13]	2,440
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1		1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(1)	[1],[20]	0
Gross Additions					1		0
Gross Reductions					0		0
Ending balance		$ 0	[2],[19]	$ 0	$ 0	[2],[19]	$ 0
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%		13.50%	13.50%		13.50%	13.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		17
Amount of Interest, Fees or Dividends Credited to Income					138		133
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,962	[1]	1,980
Gross Additions					3		0
Gross Reductions					0		0
Ending balance		$ 1,965	[2]	$ 1,980	$ 1,965	[2]	1,980
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.72%	[7],[15]		11.72%	[7],[15]		11.90%	[16],[23]
Spread		7.40%	[7],[15],[17]		7.40%	[7],[15],[17]		7.40%	[16],[18],[23]
PIK Rate		6.25%	[5],[7],[15]		6.25%	[5],[7],[15]		6.00%	[6],[16],[23]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[23]				$ 2,686
Ending balance	[2],[7],[15]	$ 2,696			2,696
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[23]				0
Ending balance	[2],[7]	0			0
Investment, Identifier [Axis]: UPS Intermediate, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				412
Ending balance	[2]	$ 480			$ 480
Investment, Identifier [Axis]: UPS Intermediate, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.33%	[15]		10.33%	[15]		10.36%	[16]
Spread		6.00%	[15],[17]		6.00%	[15],[17]		6.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 19,294
Ending balance	[2],[15]	$ 19,259			$ 19,259
Investment, Identifier [Axis]: Urgent DSO LLC, Preferred Equity
Schedule of Investments [Line Items]
Total Rate		9.00%	[13]		9.00%	[13]		9.00%	[11]
PIK Rate		9.00%	[5],[13]		9.00%	[5],[13]		9.00%	[6],[11]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					49
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				1,080
Gross Additions					49
Gross Reductions					0
Ending balance	[2],[13]	$ 1,129			$ 1,129
Investment, Identifier [Axis]: Urgent DSO LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.50%			13.50%			13.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					156
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				2,145
Gross Additions					7
Gross Reductions					0
Ending balance	[2]	$ 2,152			$ 2,152
Investment, Identifier [Axis]: UserZoom Technologies, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.78%	[12],[15]		11.78%	[12],[15]		12.75%	[10],[16]
Spread		7.50%	[12],[15],[17]		7.50%	[12],[15],[17]		7.50%	[10],[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[10],[16]				$ 3,000
Ending balance	[2],[12],[15]	$ 3,000			3,000
Investment, Identifier [Axis]: VORTEQ Coil Finishers, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[10],[11]				1,950
Ending balance	[2],[12],[13]	2,090			2,090
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)					0		0
Amount of Interest, Fees or Dividends Credited to Income					25		51
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,060	[1],[11],[27]	3,060
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 3,060	[2],[13],[26]	$ 3,060	$ 3,060	[2],[13],[26]	$ 3,060
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[15],[17],[19]	6.00%	6.00%	[15],[17],[19]	6.00%	6.00%	[16],[18],[20]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					2		2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[1],[16],[20]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[2],[15],[19]	$ 0	$ 0	[2],[15],[19]	$ 0
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.50%		11.50%	11.50%		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					387		429
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,366	[1]	6,926
Gross Additions					22		26
Gross Reductions					320		290
Ending balance		$ 6,068	[2]	$ 6,662	6,068	[2]	6,662
Investment, Identifier [Axis]: Victory Energy Operations, 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					37
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				3,644
Gross Additions					0
Gross Reductions					35
Ending balance	[2],[13]	$ 3,609			$ 3,609
Investment, Identifier [Axis]: Victory Energy Operations, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[20]				(5)
Gross Additions					272
Gross Reductions					0
Ending balance	[2]	$ 267			$ 267
Investment, Identifier [Axis]: Victory Energy Operations, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%			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					530
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				7,529
Gross Additions					23
Gross Reductions					0
Ending balance	[2]	$ 7,552			$ 7,552
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.43%	[14]		11.43%	[14]		11.55%
Spread		7.00%	[14],[17]		7.00%	[14],[17]		7.00%	[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 1,705
Ending balance	[2],[14]	$ 2,273			$ 2,273
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt 1, Secured Overnight Financing Rate
Schedule of Investments [Line Items]
Spread		4.00%			4.00%
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.44%	[15]		11.44%	[15]		11.47%	[16]
Spread		7.00%	[15],[17]		7.00%	[15],[17]		7.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 12,375
Ending balance	[2],[15]	$ 12,312			12,312
Investment, Identifier [Axis]: Volusion, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	0			0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	1,840			1,840
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	0			0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 0			$ 0
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[31]	10.00%			10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[31]	$ 900			$ 900
Investment, Identifier [Axis]: Volusion, LLC, Common 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					0	[1]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0		0	0		0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				3,004
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					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
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					10		0
Amount of Unrealized Gain/(Loss)					(694)		798
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,004		3,110
Gross Additions					9		799
Gross Reductions					1,173		909
Ending balance		1,840		3,000	1,840		3,000
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 3
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	[1]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.00%		10.00%	10.00%		10.00%	10.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					45		46
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					900	[1]	900
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 900		$ 900	900		$ 900
Investment, Identifier [Axis]: Wall Street Prep, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				1,510
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread	[16],[18],[20]							7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[20]				(3)
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[16]							11.74%
Spread	[16],[18]							7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				2,199
Investment, Identifier [Axis]: Wash & Wax Systems LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 500			$ 500
Investment, Identifier [Axis]: Wash & Wax Systems LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15]	9.78%			9.78%
Spread	[15],[17]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 1			$ 1
Investment, Identifier [Axis]: Wash & Wax Systems LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[15]	9.78%			9.78%
Spread	[15],[17]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 1,007			$ 1,007
Investment, Identifier [Axis]: Wash & Wax Systems LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%
PIK Rate	[5]	12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2]	$ 658			$ 658
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%			12.00%
PIK Rate		4.00%	[5]		4.00%	[5]		4.00%	[6]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 292
Ending balance	[2]	$ 297			$ 297
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%			12.00%
PIK Rate		4.00%	[5]		4.00%	[5]		4.00%	[6]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 50
Ending balance	[2]	$ 52			$ 52
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%			12.00%
PIK Rate		4.00%	[5]		4.00%	[5]		4.00%	[6]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 2,076
Ending balance	[2]	$ 2,114			$ 2,114
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%			12.00%
PIK Rate		4.00%	[5]		4.00%	[5]		4.00%	[6]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 1,874
Ending balance	[2]	$ 1,908			1,908
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				640
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[16]							9.47%
Spread	[16],[18]							5.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				658
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[16]							9.60%
Spread	[16],[18]							5.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				2,917
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[16]							9.60%
Spread	[16],[18]							5.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,452
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[16]							12.81%
Spread		8.00%	[14],[15],[17],[19]		8.00%	[14],[15],[17],[19]		8.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 2,672
Ending balance	[2],[14],[15],[19]	$ (36)			$ (36)
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.56%	[15]		12.56%	[15]		12.85%	[16]
Spread		8.00%	[15],[17]		8.00%	[15],[17]		8.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 2,276
Ending balance	[2],[15]	$ 2,343			$ 2,343
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.56%	[15]		11.56%	[15]		11.85%	[16]
Spread		7.00%	[15],[17]		7.00%	[15],[17]		7.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 8,794
Ending balance	[2],[15]	$ 9,050			$ 9,050
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		13.56%	[15]		13.56%	[15]		13.85%	[16]
Spread		9.00%	[15],[17]		9.00%	[15],[17]		9.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 8,794
Ending balance	[2],[15]	$ 9,050			9,050
Investment, Identifier [Axis]: World Micro Holdings, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[11]				530
Ending balance	[2],[13]	$ 530			$ 530
Investment, Identifier [Axis]: World Micro Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.00%			11.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]				$ 1,468
Ending balance	[2]	$ 1,351			$ 1,351
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.17%	[15]		10.17%	[15]		9.70%	[16]
Spread		5.75%	[15],[17]		5.75%	[15],[17]		5.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 1,176
Ending balance	[2],[15]	$ 1,170			$ 1,170
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.12%	[15]		10.12%	[15]		9.98%	[16]
Spread		5.75%	[15],[17]		5.75%	[15],[17]		5.25%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 2,328
Ending balance	[2],[15]	$ 2,316			$ 2,316
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[15]	10.15%			10.15%
Spread	[15],[17]	5.75%			5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[2],[15]	$ 607			$ 607
Investment, Identifier [Axis]: YS Garments, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.88%	[15],[36]		11.88%	[15],[36]		12.25%	[16],[46]
Spread		7.50%	[15],[17],[36]		7.50%	[15],[17],[36]		7.50%	[16],[18],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16],[46]				$ 4,661
Ending balance	[2],[15],[36]	$ 4,284			$ 4,284
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.50%	[15]		12.50%	[15]		12.50%	[16]
Spread		5.00%	[15],[17]		5.00%	[15],[17]		5.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 86
Ending balance	[2],[15]	$ 648			$ 648
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.28%	[15],[43]		10.28%	[15],[43]		10.74%	[16]
Spread		6.00%	[15],[17],[43]		6.00%	[15],[17],[43]		6.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 517
Ending balance	[2],[15],[43]	$ 997			$ 997
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.17%	[15]		10.17%	[15]		10.28%	[16]
Spread		6.00%	[15],[17]		6.00%	[15],[17]		6.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 817
Ending balance	[2],[15]	$ 813			$ 813
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		10.31%	[15]		10.31%	[15]		10.66%	[16]
Spread		6.00%	[15],[17]		6.00%	[15],[17]		6.00%	[16],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 5,852
Ending balance	[2],[15]	$ 5,819			5,819
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[16]							11.91%
Spread	[16],[18]							7.25%
PIK Rate	[6],[16]							11.91%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				2,025
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[16]							11.91%
Spread	[16],[18]							7.25%
PIK Rate	[6],[16]							11.91%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[16]				$ 508
[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] 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. [5] Investments may have a portion, or all, of their income received from Paid-in-Kind (“PIK”) interest or dividends. PIK interest income and cumulative dividend income represent income not paid currently in cash. The difference between the Total Rate and PIK Rate represents the cash rate as of June 30, 2025. [6] Investments may have a portion, or all, of their income received from PIK interest or dividends. PIK interest income and cumulative dividend income represent income not paid currently in cash. The difference between the Total Rate and PIK Rate represents the cash rate as of December 31, 2024. [7] Non-accrual and non-income producing debt investment. [8] Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit. [9] Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit. [10] Private Loan portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Private Loan portfolio investments. [11] Income producing through dividends or distributions. [12] Private Loan (as defined below) portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Private Loan portfolio investments. [13] Income producing through dividends or distributions. [14] Revolving line of credit 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, 2025. [15] Index based floating interest rate is subject to contractual minimum interest rate. As noted in this schedule, 97% of the loans (based on the par amount) contain Secured Overnight Financing Rate (“SOFR”) floors which range between 0.75% and 5.25%, with a weighted-average floor of 1.33%. [16] Index based floating interest rate is subject to contractual minimum interest rate. As noted in this schedule, 96% of the loans (based on the par amount) contain SOFR floors which range between 0.75% and 5.25%, with a weighted-average floor of 1.28%. [17] A majority of the variable rate loans in the Investment Portfolio (as defined below) bear interest at a rate that may be determined by reference to either 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, plus the Adjustment, exceeds the stated floor rate, as applicable. As of June 30, 2025, SOFR based contracts in the portfolio had Adjustments ranging from 0.10% to 0.26%. [18] A majority of the variable rate loans in the Investment Portfolio bear interest at a rate that may be determined by reference to either 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, plus the Adjustment, exceeds the stated floor rate, as applicable. As of December 31, 2024, SOFR based contracts in the portfolio had Adjustments ranging from 0.10% to 0.26%. [19] The position is unfunded and no interest income is being earned as of June 30, 2025. The position may earn a nominal unused facility fee on committed amounts. [20] The position is unfunded and no interest income is being earned as of December 31, 2024. The position may earn a nominal unused facility fee on committed amounts. [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 3.00%. [23] Non-accrual and non-income producing debt investment. [24] Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable. [25] Revolving line of credit 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, 2024. [26] Shares/Units represent ownership in a related real estate or holding entity. [27] Shares/Units represent ownership in a related real estate or holding entity. [28] Investment purchased through a distressed sale with the intention to be sold on a short-term basis. [29] Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated. [30] Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated. [31] Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable. [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] Other Portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Other Portfolio investments. [34] 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. [35] Other Portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Other Portfolio investments. [36] Middle Market (as defined below) portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Middle Market portfolio investments. [37] Effective yield as of December 31, 2024 was approximately 4.13% on the Fidelity Government Portfolio Fund Class III. [38] Effective yield as of June 30, 2025 was approximately 3.98% on the Fidelity Government Portfolio Fund Class III. [39] Effective yield as of December 31, 2024 was approximately 4.41% on the First American Treasury Obligations Fund Class Z [40] Effective yield as of June 30, 2025 was approximately 4.17% on the First American Treasury Obligations Fund Class Z. [41] Index based floating interest rate is subject to contractual maximum base rate of 4.00%. [42] Index based floating interest rate is subject to contractual maximum base rate of 4.00% [43] 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, 2025. [44] Investment is accruing income at the fixed cash rate of 2.50% as of June 30, 2025. [45] Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2024. [46] Middle Market portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Middle Market portfolio investments. [47] The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of 11.85% per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. [48] The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of 11.75% per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate.