v3.26.3
Summary of Significant Accounting Policies - Revenue Recognition (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Net Investment Income [Line Items]        
Percentage of management fees for CLOs on the total par amount of assets in the fund     1.00%  
Percentage of monthly management fee     1.25%  
Transaction and portfolio advisory fee, rebate offset percentage 100.00%   100.00%  
Transaction and advisory fees $ 27.7 $ 21.1 $ 185.5 $ 143.6
Incentive Fees        
Performance fees allocation percentage to partnership (percent)     20.00%  
Minimum        
Net Investment Income [Line Items]        
Percentage of management fees earned     1.00%  
Percentage of management fees expiration Or termination     0.50%  
Percentage of management fees from funds of funds during the commitment fee period     0.25%  
Percentage of management fees from funds of funds following the expiration of the weighted average investment period     0.25%  
Percentage of management fees for CLOs on the total par amount of assets in the fund     0.40%  
Percentage of management fee rate for perpetual capital products     0.10%  
Percentage of management fees for business development companies     1.00%  
Incentive Fees        
Management and service fees, incentive rate     10.00% 17.50%
Percentage of allocation based performance fees related to fund of funds vehicles (percent)     2.00%  
Percent of preferred returns (percent)     7.00%  
Maximum        
Net Investment Income [Line Items]        
Percentage of management fees earned     2.00%  
Percentage of management fees expiration Or termination     2.00%  
Percentage of management fees from funds of funds during the commitment fee period     1.50%  
Percentage of management fees from funds of funds following the expiration of the weighted average investment period     1.50%  
Percentage of management fees for CLOs on the total par amount of assets in the fund     0.50%  
Percentage of management fee rate for perpetual capital products     0.75%  
Percentage of management fees for business development companies     1.50%  
Incentive Fees        
Percentage of allocation based performance fees related to fund of funds vehicles (percent)     12.50%  
Percent of preferred returns (percent)     9.00%