v3.26.1
Fair Value of Investments - Changes in the fair value of investments for which Level 3 inputs were used to determine the fair value (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Changes in the fair value of investments for which Level 3 inputs were used to determine the fair value          
Transfers in (out) of Level 3 $ 0 $ 0 $ 0 $ 0  
Level 3          
Changes in the fair value of investments for which Level 3 inputs were used to determine the fair value          
Fair value, beginning of period 2,721,154 2,495,329 2,684,101 2,391,216 $ 2,391,216
Purchases of investments, net 173,033 176,828 407,606 359,366  
Proceeds from sales and principal payments, net (131,292) (157,034) (318,398) (239,797)  
Realized gain (loss) on investments 691 1,923 1,989 2,548  
Net change in unrealized appreciation/(depreciation) (1,941) 1,549 (15,725) 1,804  
Net accretion of discount and amortization of investments 1,594 1,906 3,666 5,364  
Transfers in (out) of Level 3       0  
Fair value, end of period 2,763,239 2,520,501 2,763,239 2,520,501 2,684,101
First Lien Loans | Level 3          
Changes in the fair value of investments for which Level 3 inputs were used to determine the fair value          
Fair value, beginning of period 2,478,127 2,263,619 2,437,356 2,175,756 2,175,756
Purchases of investments, net 145,462 173,248 366,547 339,411  
Proceeds from sales and principal payments, net (115,916) (157,034) (289,336) (239,793)  
Realized gain (loss) on investments 633 1,923 1,805 2,547  
Net change in unrealized appreciation/(depreciation) (2,777) 371 (12,795) 871  
Net accretion of discount and amortization of investments 1,494 1,808 3,446 5,143  
Transfers in (out) of Level 3       0  
Fair value, end of period 2,507,023 2,283,935 2,507,023 2,283,935 2,437,356
Second Lien Loans | Level 3          
Changes in the fair value of investments for which Level 3 inputs were used to determine the fair value          
Fair value, beginning of period 82,042 80,945 73,430 79,596 79,596
Purchases of investments, net 7,327 281 17,389 1,960  
Proceeds from sales and principal payments, net (8,050) 0 (8,050) (4)  
Realized gain (loss) on investments 7 0 7 0  
Net change in unrealized appreciation/(depreciation) 326 829 (1,166) 466  
Net accretion of discount and amortization of investments 42 24 84 61  
Transfers in (out) of Level 3       0  
Fair value, end of period 81,694 82,079 81,694 82,079 73,430
Unsecured Note | Level 3          
Changes in the fair value of investments for which Level 3 inputs were used to determine the fair value          
Fair value, beginning of period 115,262 101,708 122,504 87,941 87,941
Purchases of investments, net 17,969 2,048 20,434 15,744  
Proceeds from sales and principal payments, net (485) 0 (9,372) 0  
Realized gain (loss) on investments 0 0 56 2  
Net change in unrealized appreciation/(depreciation) (896) 162 (1,836) 170  
Net accretion of discount and amortization of investments 44 55 108 116  
Transfers in (out) of Level 3       0  
Fair value, end of period 131,894 103,973 131,894 103,973 122,504
Preferred Equity | Level 3          
Changes in the fair value of investments for which Level 3 inputs were used to determine the fair value          
Fair value, beginning of period 35,619 37,257 40,166 36,227 36,227
Purchases of investments, net 2,275 1,251 3,236 2,238  
Proceeds from sales and principal payments, net (6,841) 0 (11,640) 0  
Realized gain (loss) on investments 51 0 121 (1)  
Net change in unrealized appreciation/(depreciation) 366 56 (427) 75  
Net accretion of discount and amortization of investments 14 19 28 44  
Transfers in (out) of Level 3       0  
Fair value, end of period 31,484 38,583 31,484 38,583 40,166
Common Equity & Warrants | Level 3          
Changes in the fair value of investments for which Level 3 inputs were used to determine the fair value          
Fair value, beginning of period 10,104 11,800 10,645 11,696 11,696
Purchases of investments, net 0 0 0 13  
Proceeds from sales and principal payments, net 0 0 0 0  
Realized gain (loss) on investments 0 0 0 0  
Net change in unrealized appreciation/(depreciation) 1,040 131 499 222  
Net accretion of discount and amortization of investments 0 0 0 0  
Transfers in (out) of Level 3       0  
Fair value, end of period $ 11,144 $ 11,931 $ 11,144 $ 11,931 $ 10,645