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Affiliate Equity - Additional Information (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Affiliate Equity [Line Items]      
Distributions paid to affiliate partners $ 216.4 $ 278.0  
Payments to acquire interest in affiliates 41.7 37.0  
Issuance of interest in affiliates 13.4 $ 15.2  
Other assets 238.1   $ 264.6
Other liabilities 482.3   461.7
Related Party      
Affiliate Equity [Line Items]      
Other assets 6.0   11.6
Other liabilities $ 45.2   $ 24.5