v3.26.3
Consolidated Statements of Assets and Liabilities (Parenthetical) - USD ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2026
Dec. 31, 2025
Cost [1],[2] $ 15,107,313 $ 14,127,213
Restricted cash 21,690 0
Foreign cash, cost 1,639 709
Debt Issuance Costs $ 93,204 $ 84,123
Common stock, par value (in USD per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 1,000,000,000 1,000,000,000
Common stock, shares, issued (in shares) 452,612,089 464,047,623
Common stock, shares, outstanding (in shares) 452,612,089 464,047,623
Non-controlled, non-affiliated investments    
Cost [1],[2] $ 14,096,488 $ 13,262,010
Non-controlled, affiliated investments    
Cost [1],[2] 629,156 736,415
Controlled, affiliated investments    
Cost [1],[2] $ 381,669 $ 128,788
[1] The amortized cost represents the original cost adjusted for the amortization or accretion of premium or discount, as applicable, on debt investments using the effective interest method.
[2] As of September 30, 2026, the net estimated unrealized loss for U.S. federal income tax purposes was $71.3 million based on a tax cost basis of $14.9 billion. As of September 30, 2026, the estimated aggregate gross unrealized loss for U.S. federal income tax purposes was $754.7 million and the estimated aggregate gross unrealized gain for U.S. federal income tax purposes was $683.3 million.