v3.26.1
Investments at Fair Value - Summary of Investments at Fair Value (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Schedule Of Available For Sale Securities [Line Items]    
Amortized Cost [1] $ 3,316,393 $ 3,323,282
Fair Value 3,302,132 3,347,317
Net Unrealized Gain (Loss) (14,261) 24,035
First-lien Debt Investments    
Schedule Of Available For Sale Securities [Line Items]    
Amortized Cost [1] 2,933,244 2,934,162
Fair Value 2,917,433 2,984,501
Net Unrealized Gain (Loss) (15,811) 50,339
Second-lien Debt Investments    
Schedule Of Available For Sale Securities [Line Items]    
Amortized Cost [1] 24,499 69,631
Fair Value 23,685 30,678
Net Unrealized Gain (Loss) (814) (38,953)
Mezzanine Debt Investments    
Schedule Of Available For Sale Securities [Line Items]    
Amortized Cost [1] 63,784 61,150
Fair Value 64,620 61,684
Net Unrealized Gain (Loss) 836 534
Equity Investments    
Schedule Of Available For Sale Securities [Line Items]    
Amortized Cost [1] 152,232 159,782
Fair Value 154,793 172,582
Net Unrealized Gain (Loss) 2,561 12,800
Structured Credit Investments    
Schedule Of Available For Sale Securities [Line Items]    
Amortized Cost [1] 91,243 98,557
Fair Value 87,769 97,872
Net Unrealized Gain (Loss) (3,474) $ (685)
Joint Venture Investments    
Schedule Of Available For Sale Securities [Line Items]    
Amortized Cost [1] 51,391  
Fair Value 53,832  
Net Unrealized Gain (Loss) $ 2,441  
[1] The amortized cost represents the original cost adjusted for the amortization of discounts or premiums, as applicable, on debt investments using the effective interest method.