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Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Accounting Policies [Abstract]      
Accrued performance allocations and incentive fee related compensation $ 3,637.0   $ 3,625.3
Securities transferred to counterparties under repurchase agreements 288.2    
Foreign currency transaction (loss) gain $ (11.8) $ 6.4