v3.25.1
Related Party Transactions - Schedule of Fees And Expenses Accrued Under The Investment Advisory Agreement (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Related Party Transaction [Line Items]      
Base Management Fee $ 52.0 $ 55.0  
Subordinated Incentive Fee on Income [1] 39.0 43.0  
Administrative Services Expenses 1.0 1.0  
Management fees payable 52.0   $ 53.0
Subordinated income incentive fees payable [2] 39.0   $ 35.0
FS/KKR Advisor, LLC      
Related Party Transaction [Line Items]      
Base Management Fee 52.0 55.0  
Subordinated Incentive Fee on Income 39.0 43.0  
Administrative Services Expenses 3.0 3.0  
Base management fees 53.0 56.0  
Management fees payable 52.0    
Incentive fee paid 35.0 41.0  
Subordinated income incentive fees payable 39.0    
Allocation of costs of administrative personnel for services rendered 2.0 3.0  
Broken deal cost 0.4    
Payment for administrative services expenses $ 1.0 $ 2.0  
[1] See Note 2 and 4 for a discussion of the methodology employed by the Company in calculating the subordinated income incentive fees.
[2] See Note 2 and 4 for a discussion of the methodology employed by the Company in calculating the subordinated income incentive fees.