v3.26.1
Consolidated Statements of Assets and Liabilities (Parenthetical) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Cost [1],[2] $ 14,415,609 $ 14,127,213
Foreign cash, cost 878 709
Restricted cash [3] 0 0
Debt Issuance Costs $ 86,197 $ 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) 461,123,693 464,047,623
Common stock, shares, outstanding (in shares) 461,123,693 464,047,623
Non-controlled, non-affiliated investments    
Cost [1],[2] $ 13,420,277 $ 13,262,010
Non-controlled, affiliated investments    
Cost [1],[2] 866,787 736,415
Controlled, affiliated investments    
Cost [1],[2] $ 128,545 $ 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 March 31, 2026, the net estimated unrealized loss for U.S. federal income tax purposes was $147.6 million based on a tax cost basis of $14.2 billion. As of March 31, 2026, the estimated aggregate gross unrealized loss for U.S. federal income tax purposes was $689.2 million and the estimated aggregate gross unrealized gain for U.S. federal income tax purposes was $541.6 million.
[3] The Company held no restricted cash in the periods presented.