v3.26.1
Summary of Significant Accounting Policies - Schedule of Changes in Investments (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Marketable Securities [Line Items]        
Beginning Balance     $ 1,533,302,472  
Ending Balance $ 1,290,523,348   1,290,523,348  
Level 3        
Marketable Securities [Line Items]        
Beginning Balance     1,532,874,531  
Ending Balance 1,287,800,196   1,287,800,196  
Level 3 | Independent Third-Party Valuation        
Marketable Securities [Line Items]        
Beginning Balance 1,387,809,965 $ 1,746,562,673 1,532,172,316 $ 1,764,630,382
Net realized and unrealized gains (losses) $ (13,937,001) $ (40,875,339) $ (50,014,779) $ (48,959,565)
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 Gain (Loss) on Investments Gain (Loss) on Investments
Acquisitions $ 27,133,333 $ 114,297,332 $ 52,865,910 $ 159,493,094
Dispositions (111,505,940) (46,232,362) (245,188,012) (101,411,607)
Transfers out of Level 3 (2,402,376)   (2,737,454)  
Ending Balance 1,287,097,981 1,773,752,304 1,287,097,981 1,773,752,304
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) $ (2,361,408) $ (33,290,060) $ (35,611,221) $ (35,841,882)
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 Unrealized Gain (Loss) on Investments Unrealized Gain (Loss) on Investments
Level 3 | Valuation Designee        
Marketable Securities [Line Items]        
Beginning Balance $ 702,215 $ 1,157,403 $ 702,215 $ 1,157,403
Net realized and unrealized gains (losses) 0   0  
Ending Balance 702,215 1,157,403 702,215 1,157,403
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 $ (0) $ 0 $ 0
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 Unrealized Gain (Loss) on Investments Unrealized Gain (Loss) on Investments
Level 3 | Bank Debt | Independent Third-Party Valuation        
Marketable Securities [Line Items]        
Beginning Balance $ 1,212,025,456 $ 1,511,035,364 $ 1,358,559,662 $ 1,549,242,872
Net realized and unrealized gains (losses) $ (8,131,038) $ (23,598,192) $ (33,611,257) $ (47,523,851)
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 Gain (Loss) on Investments Gain (Loss) on Investments
Acquisitions $ 17,099,467 $ 81,074,012 $ 28,815,578 $ 121,482,589
Dispositions (103,282,647) (42,923,822) (235,717,667) (97,614,248)
Transfers out of Level 3 (2,402,376)   (2,737,454)  
Ending Balance 1,115,308,862 1,525,587,362 1,115,308,862 1,525,587,362
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) $ (5,051,547) $ (16,497,886) $ (27,635,319) $ (34,410,339)
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 Unrealized Gain (Loss) on Investments Unrealized Gain (Loss) on Investments
Level 3 | Bank Debt | Valuation Designee        
Marketable Securities [Line Items]        
Beginning Balance $ 0 $ 0 $ 0 $ 0
Net realized and unrealized gains (losses) 0   0  
Ending Balance 0 0 0 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 $ (0) $ 0 $ 0
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 Unrealized Gain (Loss) on Investments Unrealized Gain (Loss) on Investments
Level 3 | Other Corporate Debt | Independent Third-Party Valuation        
Marketable Securities [Line Items]        
Beginning Balance $ 62,305,494 $ 62,109,147 $ 59,756,438 $ 64,772,456
Net realized and unrealized gains (losses) $ 15,173 $ 314,698 $ 15,173 $ (2,348,611)
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 Gain (Loss) on Investments Gain (Loss) on Investments
Acquisitions $ 0 $ 0 $ 2,549,056 $ 0
Dispositions 0 (2,539,224) 0 (2,539,224)
Transfers out of Level 3 0   0  
Ending Balance 62,320,667 59,884,621 62,320,667 59,884,621
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) $ 15,173 $ 314,175 $ 15,173 $ (2,349,135)
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 Unrealized Gain (Loss) on Investments Unrealized Gain (Loss) on Investments
Level 3 | Other Corporate Debt | Valuation Designee        
Marketable Securities [Line Items]        
Beginning Balance $ 127,490 $ 0 $ 127,490 $ 0
Net realized and unrealized gains (losses) 0   0  
Ending Balance 127,490 0 127,490 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 $ 0 $ 0 $ 0
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 Unrealized Gain (Loss) on Investments Unrealized Gain (Loss) on Investments
Level 3 | Equity Securities | Independent Third-Party Valuation        
Marketable Securities [Line Items]        
Beginning Balance $ 113,479,015 $ 173,418,162 $ 113,856,216 $ 150,615,054
Net realized and unrealized gains (losses) $ (5,821,136) $ (17,591,845) $ (16,418,695) $ 912,897
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 Gain (Loss) on Investments Gain (Loss) on Investments
Acquisitions $ 10,033,866 $ 33,223,320 $ 21,501,276 $ 38,010,505
Dispositions (8,223,293) (769,316) (9,470,345) (1,258,135)
Transfers out of Level 3 0   0  
Ending Balance 109,468,452 188,280,321 109,468,452 188,280,321
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) $ 2,674,966 $ (17,106,349) $ (7,991,075) $ 917,592
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 Unrealized Gain (Loss) on Investments Unrealized Gain (Loss) on Investments
Level 3 | Equity Securities | Valuation Designee        
Marketable Securities [Line Items]        
Beginning Balance $ 574,725 $ 1,157,403 $ 574,725 $ 1,157,403
Net realized and unrealized gains (losses) 0   0  
Ending Balance 574,725 1,157,403 574,725 1,157,403
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 $ 0 $ 0 $ 0
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 Unrealized Gain (Loss) on Investments Unrealized Gain (Loss) on Investments