Amount of realized performance fees, if the fund were liquidated at the reporting date fair value, that would be given back to the fund investors at the end of the fund's life if the fund fair value does not recover sufficiently to pass through the hurdle rate that allows for the recognition of performance fees.

No definition available.

Summary of Significant Accounting Policies - Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Net Investment Income [Line Items]
Period of time for which management fees will be received by partners from the initial closing date (in years)			10 years
Subsequent period in which management fees are recognized after these fees are called (in months)			6 months
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	$ 21.1	$ 25.1	$ 143.6	$ 75.1
Incentive Fees
Performance fees allocation percentage to partnership (percent)			20.00%
Accrued giveback obligations	44.6		$ 44.6		$ 44.0
Interest Income
Interest income from investments	$ 146.9	$ 158.0	$ 412.4	$ 449.9
Minimum
Net Investment Income [Line Items]
Percentage of management fees earned			1.00%
Percentage of management fees earned from invested capital			1.00%
Extension period for fund closing (in years)			1 year
Percentage of management fees for CLOs on the total par amount of assets in the fund			0.40%
Period of management fees related to collateralized loan obligation (in years)			5 years
Percentage of management fees for business development companies			1.00%
Percentage of management fee rate for perpetual capital products			0.10%
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%
Incentive Fees
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 earned from invested capital			2.00%
Extension period for fund closing (in years)			2 years
Percentage of management fees for CLOs on the total par amount of assets in the fund			0.50%
Period of management fees related to collateralized loan obligation (in years)			10 years
Percentage of management fees for business development companies			1.50%
Percentage of management fee rate for perpetual capital products			0.75%
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%
Incentive Fees
Percentage of allocation based performance fees related to fund of funds vehicles (percent)			12.50%
Percent of preferred returns (percent)			9.00%