Summary of Significant Accounting Policies - Schedule of Changes in Investments (Details) - Level 3 - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Independent Third-Party Valuation
Marketable Securities [Line Items]
Beginning balance	$ 1,514,008,603	$ 1,716,190,281
Net realized and unrealized gains (losses)	$ (137,065)	$ 6,243,833
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Gain Loss On Investments	Gain Loss On Investments
Acquisitions	$ 84,064,617	$ 115,286,737
Dispositions	(25,512,006)	(151,632,616)
Ending balance	1,572,424,149	1,673,600,569
Net change in unrealized appreciation/depreciation during the period on investments still held at period end (included in net realized and unrealized gains/losses, above)	$ (6,278,507)	$ 10,421,738
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Unrealized Gain Loss On Investments	Unrealized Gain Loss On Investments
Valuation Designee
Marketable Securities [Line Items]
Beginning balance	$ 2,820,823
Net realized and unrealized gains (losses)	(124,582)
Acquisitions	606,666
Dispositions	(2,318,388)
Ending balance	1,233,683
Net change in unrealized appreciation/depreciation during the period on investments still held at period end (included in net realized and unrealized gains/losses, above)	$ (217,846)
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Unrealized Gain Loss On Investments
Advisor Valuation
Marketable Securities [Line Items]
Beginning balance		$ 5,085,030
Net realized and unrealized gains (losses)		615,160
Dispositions		1,645,326
Ending balance		2,824,544
Net change in unrealized appreciation/depreciation during the period on investments still held at period end (included in net realized and unrealized gains/losses, above)		$ 3,180
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]		Unrealized Gain Loss On Investments
Bank Debt | Independent Third-Party Valuation
Marketable Securities [Line Items]
Beginning balance	$ 1,258,052,376	$ 1,453,211,129
Net realized and unrealized gains (losses)	$ (3,018,083)	$ 5,268,842
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Gain Loss On Investments	Gain Loss On Investments
Acquisitions	$ 74,099,564	$ 114,307,153
Dispositions	(25,483,646)	(152,384,418)
Ending balance	1,309,686,377	1,409,865,022
Net change in unrealized appreciation/depreciation during the period on investments still held at period end (included in net realized and unrealized gains/losses, above)	$ (3,125,051)	$ 9,356,124
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Unrealized Gain Loss On Investments	Unrealized Gain Loss On Investments
Bank Debt | Valuation Designee
Marketable Securities [Line Items]
Beginning balance
Net realized and unrealized gains (losses)	(1,400)
Acquisitions	1,400
Dispositions	(531,024)
Ending balance	0
Net change in unrealized appreciation/depreciation during the period on investments still held at period end (included in net realized and unrealized gains/losses, above)	$ (0)
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Unrealized Gain Loss On Investments
Bank Debt | Advisor Valuation
Marketable Securities [Line Items]
Beginning balance
Net realized and unrealized gains (losses)
Dispositions
Ending balance
Net change in unrealized appreciation/depreciation during the period on investments still held at period end (included in net realized and unrealized gains/losses, above)
Other Corporate Debt | Independent Third-Party Valuation
Marketable Securities [Line Items]
Beginning balance	$ 68,451,437	61,266,010
Net realized and unrealized gains (losses)	$ (862,966)	$ (1,474,524)
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Gain Loss On Investments	Gain Loss On Investments
Acquisitions	$ 37,036	$ 29,951
Dispositions	0	0
Ending balance	69,351,439	59,821,437
Net change in unrealized appreciation/depreciation during the period on investments still held at period end (included in net realized and unrealized gains/losses, above)	$ (862,965)	$ (1,689,951)
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Unrealized Gain Loss On Investments	Unrealized Gain Loss On Investments
Other Corporate Debt | Valuation Designee
Marketable Securities [Line Items]
Beginning balance	$ 1,415,738
Net realized and unrealized gains (losses)	(157,305)
Acquisitions
Dispositions	(1,182,099)
Ending balance	390,944
Net change in unrealized appreciation/depreciation during the period on investments still held at period end (included in net realized and unrealized gains/losses, above)	$ (157,304)
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Unrealized Gain Loss On Investments
Other Corporate Debt | Advisor Valuation
Marketable Securities [Line Items]
Beginning balance
Net realized and unrealized gains (losses)		15,341
Dispositions		1,456,920
Ending balance		1,415,739
Net change in unrealized appreciation/depreciation during the period on investments still held at period end (included in net realized and unrealized gains/losses, above)		$ 5,304
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]		Unrealized Gain Loss On Investments
Equity Securities | Independent Third-Party Valuation
Marketable Securities [Line Items]
Beginning balance	$ 187,504,790	$ 201,713,142
Net realized and unrealized gains (losses)	$ (4,018,114)	$ 499,533
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Gain Loss On Investments	Gain Loss On Investments
Acquisitions	$ 9,928,017	$ 949,633
Dispositions	(28,360)	(751,802)
Ending balance	193,386,333	203,914,110
Net change in unrealized appreciation/depreciation during the period on investments still held at period end (included in net realized and unrealized gains/losses, above)	$ 4,016,421	$ 624,336
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Unrealized Gain Loss On Investments	Unrealized Gain Loss On Investments
Equity Securities | Valuation Designee
Marketable Securities [Line Items]
Beginning balance	$ 874,061
Net realized and unrealized gains (losses)	(31,323)
Acquisitions
Dispositions	(605,265)
Ending balance	842,739
Net change in unrealized appreciation/depreciation during the period on investments still held at period end (included in net realized and unrealized gains/losses, above)	$ (375,150)
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Unrealized Gain Loss On Investments
Equity Securities | Advisor Valuation
Marketable Securities [Line Items]
Beginning balance		$ 2,197,030
Net realized and unrealized gains (losses)		599,819
Dispositions		188,406
Ending balance		1,408,805
Net change in unrealized appreciation/depreciation during the period on investments still held at period end (included in net realized and unrealized gains/losses, above)		$ 2,124
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]		Unrealized Gain Loss On Investments