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v3.25.3

Fair Value of Financial Instruments - Summary of Reconciliation of Changes for All Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - Significant Unobservable Inputs (Level 3) - Recurring - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2025 | Sep. 30, 2024
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance | $ 3,613,959 | $ 3,185,103
Net realized gains (losses) | (54,913) | (11,561)
Net change in unrealized appreciation (depreciation) | 42,920 | (39,187)
Purchases | 1,402,454 | 1,111,555
Sales | (74,392) | (21,326)
Repayments | (690,976) | (732,225)
Gross transfers into Level 3 | 22,558 | 2,323
Gross transfers out of Level 3 | (22,558) | (2,323)
Ending balance | 4,239,052 | 3,492,359
Accounts payable and accrued liabilities |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance | (1,012) |
Net realized gain (loss) | (568) |
Net change in unrealized appreciation (depreciation) | 1,534 |
Purchases | 2,003 |
Sales | (1,991) |
Gross transfers into Level 3 |  | (1,770)
Ending balance | (34) | (1,770)
Preferred Stock |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance | 53,802 | 53,038
Net realized gains (losses) |  | (711)
Net change in unrealized appreciation (depreciation) | (6,309) | (9,013)
Purchases | 4,329 | 1,597
Gross transfers into Level 3 |  | 2,431
Ending balance | 51,822 | 47,342
Common Stock |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance | 44,593 | 41,790
Net realized gains (losses) | (645) | (1,351)
Net change in unrealized appreciation (depreciation) | 2,969 | 474
Purchases | 975 | 4,100
Sales | (1,606) |
Gross transfers into Level 3 | 22,558 | 1,662
Gross transfers out of Level 3 | (5,094) |
Ending balance | 63,750 | 46,675
Warrants |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance | 21,823 | 22,088
Net realized gains (losses) | 607 | (464)
Net change in unrealized appreciation (depreciation) | 1,419 | (2,367)
Purchases | 5,372 | 2,948
Sales | (1,410) | (2,829)
Ending balance | 27,811 | 19,376
Senior Secured Debt |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance | 3,419,044 | 2,987,577
Net realized gains (losses) | (54,380) | (9,120)
Net change in unrealized appreciation (depreciation) | 42,790 | (34,978)
Purchases | 1,383,694 | 1,099,563
Sales | (67,521) |
Repayments | (690,976) | (732,225)
Gross transfers out of Level 3 | (5,242) | (4,093)
Ending balance | 4,027,409 | 3,306,724
Unsecured Debt |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance | 75,557 | 69,722
Net change in unrealized appreciation (depreciation) | 547 | 828
Purchases | 4,267 | 3,304
Gross transfers out of Level 3 | (12,222) |
Ending balance | 68,149 | 73,854
Escrow Receivables |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance | 152 |
Net realized gains (losses) | 73 |
Net change in unrealized appreciation (depreciation) | (30) |
Purchases | 1,814 |
Sales | (1,864) |
Ending balance | $ 145 |
Escrow and Other Investment Receivables |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance |  | 10,888
Net realized gains (losses) |  | 85
Net change in unrealized appreciation (depreciation) |  | 5,869
Purchases |  | 43
Sales |  | (18,497)
Gross transfers out of Level 3 |  | 1,770
Ending balance |  | $ 158

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