v3.26.3
EXTERNAL INVESTMENT MANAGER - Schedule of Statement of Operations (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2026
Jun. 30, 2026
Mar. 31, 2026
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Total expenses $ (56,972)     $ (50,316)     $ (165,010) $ (148,191)  
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS 117,083 $ 147,577 $ 48,981 123,671 $ 122,534 $ 116,082 313,641 362,287  
External Investment Manager                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Total revenues before waivers 9,902     9,675     29,793 27,891  
Waiver of incentive fees (610)     0     (1,853) 0  
Total revenues, net of incentive fee waivers 9,292     9,675     27,940 27,891  
Salaries, share-based compensation and other personnel costs (4,970)     (4,942)     (15,208) (14,414)  
Other G&A expenses (856)     (792)     (2,710) (2,548)  
Total allocated expenses (5,826)     (5,734)     (17,918) (16,962)  
Other direct G&A expenses (107)     (9)     (128) (58)  
Total expenses (5,933)     (5,743)     (18,046) (17,020)  
Net income before taxes 3,359     3,932     9,894 10,871  
Tax expense (783)     (883)     (2,366) (2,479)  
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS 2,576     3,049     7,528 8,392  
Accrued incentive fees on capital gains 883     0     3,194 0  
External Investment Manager | Advisory Agreement, Active | Affiliated Entity                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Accrued incentive fees             6,000   $ 2,800
External Investment Manager | Management fee income                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Total revenues before waivers 6,181     5,592     18,464 17,051  
External Investment Manager | Incentive fees                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Total revenues before waivers 3,534     3,910     10,768 10,321  
External Investment Manager | Administrative services fees                  
Investment Company, Nonconsolidated Subsidiary [Line Items]                  
Total revenues before waivers $ 187     $ 173     $ 561 $ 519