v3.25.2
Investments - Investments at Fair Value and Amortized Cost (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Schedule of Investments [Line Items]    
Amortized Cost $ 12,677,927 [1],[2] $ 6,433,121 [3],[4]
Fair Value 12,728,642 6,407,466
First-lien senior secured debt investments    
Schedule of Investments [Line Items]    
Amortized Cost 9,909,503 4,462,489
Fair Value 9,924,118 4,456,838
Second-lien senior secured debt investments    
Schedule of Investments [Line Items]    
Amortized Cost 462,530 292,835
Fair Value 426,937 258,538
Unsecured debt investments    
Schedule of Investments [Line Items]    
Amortized Cost 440,200 337,386
Fair Value 451,319 336,635
Preferred equity investments    
Schedule of Investments [Line Items]    
Amortized Cost 1,087,962 767,932
Fair Value 1,022,197 689,952
Common equity investments    
Schedule of Investments [Line Items]    
Amortized Cost 767,156 571,530
Fair Value 893,578 664,556
Joint Ventures    
Schedule of Investments [Line Items]    
Amortized Cost 10,576 949
Fair Value $ 10,493 $ 947
[1] As of June 30, 2025, the net estimated unrealized gain for U.S. federal income tax purposes was $189.0 million based on a tax cost basis of $12.5 billion. As of June 30, 2025, the estimated aggregate gross unrealized loss for U.S. federal income tax purposes was $67.9 million and the estimated aggregate gross unrealized gain for U.S. federal income tax purposes was $256.9 million.
[2] 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.
[3] Level 1 investment.
[4] Level 2 investment.