v3.26.1
Consolidated Statements of Cash Flows - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Cash Flows from Operating Activities      
Net Increase (Decrease) in Net Assets Resulting from Operations $ (80,366,000) $ 251,733,000  
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash used in operating activities:      
Purchases of investments, net (2,536,723,000) (4,198,054,000)  
Proceeds from investments and investment repayments, net 2,502,299,000 1,082,081,000  
Net change in unrealized (gain) loss on investments 437,260,000 60,810,000  
Net change in interest rate swaps attributed to unsecured notes (33,279,000) 65,497,000  
Net change in unrealized (gain) loss on foreign currency forward contracts (2,293,000) 0  
Net change in unrealized (gain) loss on translation of assets and liabilities in foreign currencies 8,766,000 (7,528,000)  
Net change in unrealized (gain) loss on income tax (provisions) benefit (282,000) (169,000)  
Net realized (gain) loss on investments 67,127,000 57,865,000  
Net realized (gain) loss on foreign currency transactions relating to investments (3,812,000) 5,873,000  
Net realized (gain) loss on foreign currency forward contracts 1,419,000 0  
Net realized (gain) loss on foreign currency transactions relating to debt 0 43,000  
Payment-in-kind interest and dividends (43,864,000) (35,250,000)  
Net accretion/amortization of discount/premium on investments (26,125,000) (27,902,000)  
Amortization of debt issuance costs 11,022,000 11,038,000  
Amortization of offering costs 1,640,000 1,962,000  
Changes in operating assets and liabilities:      
(Increase) decrease in interest and dividend receivable (7,123,000) (28,617,000)  
(Increase) decrease in receivable from controlled affiliates (2,776,000) 6,499,000  
(Increase) decrease in receivable for investments sold (189,081,000) 368,602,000  
(Increase) decrease in prepaid expenses and other assets (113,232,000) (56,515,000)  
Increase (decrease) in payable for investments purchased (151,359,000) 766,430,000  
Increase (decrease) in payables to affiliates (5,696,000) 979,000  
Increase (decrease) in accrued expenses and other liabilities (31,362,000) (160,587,000)  
Net cash provided by (used in) operating activities (197,840,000) (1,835,210,000)  
Cash Flows from Financing Activities      
Borrowings on debt 3,567,924,000 3,910,000,000  
Repayments of debt (2,760,000,000) (4,066,000,000)  
Deferred offering costs paid (314,000) (342,000)  
Debt issuance costs paid (5,881,000) (6,064,000)  
Repurchase of common stock (1,009,048,000) (193,197,000)  
Proceeds from issuance of common shares 670,403,000 1,926,242,000  
Distributions paid to shareholders (261,888,000) (206,101,000)  
Net cash provided by (used in) financing activities 201,196,000 1,364,538,000  
Net increase (decrease) in cash and restricted cash, including foreign cash (restricted cash of $18,673 and $(92,127), respectively) 3,356,000 (470,672,000)  
Cash and restricted cash, including foreign cash, beginning of period (restricted cash of $23,727 and $182,030, respectively) 736,554,000 1,006,483,000 $ 1,006,483,000
Cash and restricted cash, including foreign cash, end of period (restricted cash of $42,400 and $89,903, respectively) 739,910,000 535,811,000 $ 736,554,000
Supplemental and Non-Cash Information      
Interest paid during the period 289,585,000 294,180,000  
Distributions declared during the period 438,681,000 391,461,000  
Reinvestment of distributions during the period 198,625,000 165,425,000  
Taxes, including excise tax, paid during the period 1,568,000 10,010,000  
Distributions Payable $ 142,984,000 $ 172,412,000