v3.26.3
FAIR VALUE OF FINANCIAL INSTRUMENTS - Schedule of Changes in Investments using Level 3 Inputs (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance at the beginning of period $ 17,045,709 $ 9,302,895 $ 14,497,808 $ 5,935,498
Net realized gains 9,923 14,298 21,819 13,469
Net unrealized losses (28,346) 17,865 (175,727) 145,148
Purchases 982,360 3,024,312 4,891,325 6,740,606
Sales (432,146) (78,686) (1,120,052) (168,434)
Repayments (633,895) (296,134) (1,305,866) (576,028)
PIK interest and dividends 35,466 21,329 102,679 53,153
Net accretion of discount on investments 9,771 6,983 29,443 17,329
Transfers into Level 3 142,080 92,870 378,558 292,648
Transfers out of Level 3 (118,716) (195,953) (307,781) (543,610)
Balance at the end of period $ 17,012,206 $ 11,909,779 $ 17,012,206 $ 11,909,779