v3.26.1
Fair Value of Investments - Schedule of Changes in the Fair Value of Investments (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
First-lien senior secured debt investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair value, beginning of period $ 577,401 $ 1,481,331 $ 1,218,616 $ 1,495,835
Purchases of investments, net 9,791 69,316 18,068 87,924
Payment-in-kind 1,479 1,603 3,106 4,842
Proceeds from investments, net (95,001) (241,346) (742,262) (271,008)
Net accretion/amortization of discount/premium on investments 379 3,195 1,495 4,421
Transfers between investment types   0 0 0
Transfers into (out of) Level 3 237 0 2,750 (5,659)
Fair Value, End of Period 490,304 1,303,172 490,304 1,303,172
First-lien senior secured debt investments | Income Statement Location [Axis]: us-gaap:DebtAndEquitySecuritiesRealizedGainLoss        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Net change in unrealized gain (loss) / realized gain (loss) on investments (64) 1 (3,934) (63)
First-lien senior secured debt investments | Income Statement Location [Axis]: us-gaap:DebtAndEquitySecuritiesUnrealizedGainLoss        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Net change in unrealized gain (loss) / realized gain (loss) on investments (3,918) (10,928) (7,535) (13,120)
Second-lien senior secured debt investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair value, beginning of period 86,941 160,441 119,703 139,322
Purchases of investments, net 0 6,567 0 0
Payment-in-kind 249 1,623 496 2,822
Proceeds from investments, net (23,145) (32,702) (47,424) (27,098)
Net accretion/amortization of discount/premium on investments 41 467 169 588
Transfers between investment types   0 0 0
Transfers into (out of) Level 3 10,363 0 10,363 21,929
Fair Value, End of Period 57,555 132,864 57,555 132,864
Second-lien senior secured debt investments | Income Statement Location [Axis]: us-gaap:DebtAndEquitySecuritiesRealizedGainLoss        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Net change in unrealized gain (loss) / realized gain (loss) on investments (7,893) 0 (7,676) (20,066)
Second-lien senior secured debt investments | Income Statement Location [Axis]: us-gaap:DebtAndEquitySecuritiesUnrealizedGainLoss        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Net change in unrealized gain (loss) / realized gain (loss) on investments (9,001) (3,532) (18,076) 15,367
Unsecured debt investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair value, beginning of period 20,162 35,134 38,673 33,594
Purchases of investments, net 0 0 0 0
Payment-in-kind 484 854 1,436 2,206
Proceeds from investments, net (18) (468) (19,465) (696)
Net accretion/amortization of discount/premium on investments 2 12 12 21
Transfers between investment types   0 0 0
Transfers into (out of) Level 3 0 0 0 0
Fair Value, End of Period 20,644 36,411 20,644 36,411
Unsecured debt investments | Income Statement Location [Axis]: us-gaap:DebtAndEquitySecuritiesRealizedGainLoss        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Net change in unrealized gain (loss) / realized gain (loss) on investments 2 14 690 (56)
Unsecured debt investments | Income Statement Location [Axis]: us-gaap:DebtAndEquitySecuritiesUnrealizedGainLoss        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Net change in unrealized gain (loss) / realized gain (loss) on investments 12 865 (702) 1,342
Specialty Finance        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair value, beginning of period 7,604 5,792 7,491 5,040
Purchases of investments, net 566 468 566 1,219
Payment-in-kind 15 51 138 51
Proceeds from investments, net (29) 0 (39) 0
Net accretion/amortization of discount/premium on investments 0 0 0 0
Transfers between investment types   0 0 0
Transfers into (out of) Level 3 0 0 0 0
Fair Value, End of Period 8,156 6,294 8,156 6,294
Specialty Finance | Income Statement Location [Axis]: us-gaap:DebtAndEquitySecuritiesRealizedGainLoss        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Net change in unrealized gain (loss) / realized gain (loss) on investments 0 0 0 0
Specialty Finance | Income Statement Location [Axis]: us-gaap:DebtAndEquitySecuritiesUnrealizedGainLoss        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Net change in unrealized gain (loss) / realized gain (loss) on investments 0 (17) 0 (16)
Preferred        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair value, beginning of period 63,382 61,264 67,143 59,385
Purchases of investments, net 0 165 0 1,133
Payment-in-kind 801 1,550 1,952 2,586
Proceeds from investments, net (45,424) 0 (51,568) (208)
Net accretion/amortization of discount/premium on investments 530 39 570 81
Transfers between investment types   0 0 0
Transfers into (out of) Level 3 0 0 0 0
Fair Value, End of Period 14,936 63,693 14,936 63,693
Preferred | Income Statement Location [Axis]: us-gaap:DebtAndEquitySecuritiesRealizedGainLoss        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Net change in unrealized gain (loss) / realized gain (loss) on investments (9) 0 1,090 2
Preferred | Income Statement Location [Axis]: us-gaap:DebtAndEquitySecuritiesUnrealizedGainLoss        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Net change in unrealized gain (loss) / realized gain (loss) on investments (4,344) 675 (4,251) 714
Common        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair value, beginning of period 76,354 102,015 77,020 101,868
Purchases of investments, net 161 589 289 589
Payment-in-kind 45 41 88 81
Proceeds from investments, net (812) (10,432) (835) (10,433)
Net accretion/amortization of discount/premium on investments 0 0 0 0
Transfers between investment types   0 0 0
Transfers into (out of) Level 3 0 0 44 0
Fair Value, End of Period 76,791 91,791 76,791 91,791
Common | Income Statement Location [Axis]: us-gaap:DebtAndEquitySecuritiesRealizedGainLoss        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Net change in unrealized gain (loss) / realized gain (loss) on investments (1,355) 4,057 (6,106) 2,432
Common | Income Statement Location [Axis]: us-gaap:DebtAndEquitySecuritiesUnrealizedGainLoss        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Net change in unrealized gain (loss) / realized gain (loss) on investments 2,398 (4,479) 6,291 (2,746)
Specialty Finance        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair value, beginning of period 6,586 9,210 13,303 8,219
Purchases of investments, net 0 560 130 851
Payment-in-kind 0 0 0 0
Proceeds from investments, net (44) (97) (6,503) (170)
Net accretion/amortization of discount/premium on investments 0 0 0 0
Transfers between investment types   0 0 0
Transfers into (out of) Level 3 0 0 0 0
Fair Value, End of Period 6,743 10,493 6,743 10,493
Specialty Finance | Income Statement Location [Axis]: us-gaap:DebtAndEquitySecuritiesRealizedGainLoss        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Net change in unrealized gain (loss) / realized gain (loss) on investments 0 0 483 0
Specialty Finance | Income Statement Location [Axis]: us-gaap:DebtAndEquitySecuritiesUnrealizedGainLoss        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Net change in unrealized gain (loss) / realized gain (loss) on investments 201 820 (670) 1,593
Investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Fair value, beginning of period 838,430 1,855,187 1,541,949 1,843,263
Purchases of investments, net 10,518 77,665 19,053 91,716
Payment-in-kind 3,073 5,722 7,216 12,588
Proceeds from investments, net (164,473) (285,045) (868,096) (309,613)
Net accretion/amortization of discount/premium on investments 952 3,713 2,246 5,111
Transfers between investment types   0 0 0
Transfers into (out of) Level 3 10,600 0 13,157 16,270
Fair Value, End of Period 675,129 1,644,718 675,129 1,644,718
Investments | Income Statement Location [Axis]: us-gaap:DebtAndEquitySecuritiesRealizedGainLoss        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Net change in unrealized gain (loss) / realized gain (loss) on investments (9,319) 4,072 (15,453) (17,751)
Investments | Income Statement Location [Axis]: us-gaap:DebtAndEquitySecuritiesUnrealizedGainLoss        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Net change in unrealized gain (loss) / realized gain (loss) on investments $ (14,652) $ (16,596) $ (24,943) $ 3,134