v3.26.1
Investment Valuations and Fair Value Measurements - Summary of Reconciliation of Balances for Total Investments (Details) - Level 3 - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Beginning Balance $ 224,956 $ 176,479 $ 208,515 $ 150,182
Purchases, including payments received in-kind 16,027 34,362 50,574 64,037
Sales and paydowns of investments (23,390) (11,625) (41,609) (13,805)
Amortization of premium and accretion of discount, net 661 371 1,067 611
Net realized gains (loss) 204 (10) 204 (10)
Net change in unrealized appreciation/(depreciation) (8,668) (1,945) (8,961) (3,383)
Ending Balance 209,790 197,632 209,790 197,632
Change in net unrealized appreciation/(depreciation) in investments held (2,884) (1,800) (3,107) (3,238)
Debt        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Beginning Balance 216,543 176,122 201,253 150,147
Purchases, including payments received in-kind 15,970 34,261 50,517 63,802
Sales and paydowns of investments (22,946) (11,581) (41,165) (13,761)
Amortization of premium and accretion of discount, net 661 371 1,067 611
Net realized gains (loss) 8 (10) 8 (10)
Net change in unrealized appreciation/(depreciation) (2,211) (2,888) (3,655) (4,514)
Ending Balance 208,025 196,275 208,025 196,275
Change in net unrealized appreciation/(depreciation) in investments held (1,796) (2,743) (3,170) (4,369)
Equity        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Beginning Balance 8,413 357 7,262 35
Purchases, including payments received in-kind 57 101 57 235
Sales and paydowns of investments (444) (44) (444) (44)
Amortization of premium and accretion of discount, net 0 0 0 0
Net realized gains (loss) 196 0 196 0
Net change in unrealized appreciation/(depreciation) (6,457) 943 (5,306) 1,131
Ending Balance 1,765 1,357 1,765 1,357
Change in net unrealized appreciation/(depreciation) in investments held $ (1,088) $ 943 $ 63 $ 1,131