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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
$ in Millions
 1 Months Ended 3 Months Ended
Dec. 31, 2021
Mar. 31, 2022
Mar. 31, 2021
Oct. 31, 2021
Accounting Policies [Abstract]        
Accrued performance allocations and incentive fee related compensation $ 4,087.8 $ 4,269.1    
Realized performance allocation related compensation percentage (percent)       20.00%
Securities transferred to counterparties under repurchase agreements   258.7    
Foreign currency transaction gain (loss)   $ 6.4 $ (6.1)  
Maximum lag period for which the partnership investments in funds are valued 90 days 90 days