Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Oct. 31, 2021
Accounting Policies [Abstract]
Accrued performance allocations and incentive fee-related compensation	$ 4,087.8	$ 2,534.4
Realized performance allocation related compensation percentage (percent)				20.00%
Securities transferred to counterparties under repurchase agreements	171.3
Foreign currency transactions gains (losses)	$ (13.5)	$ 8.4	$ (21.4)
Maximum lag period for which the partnership investments in funds are valued	90 days	90 days