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Affiliate Equity - Summary of Affiliate Recognized and Unrecognized Expense (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Affiliate Equity [Line Items]      
Affiliate equity compensation expense $ 25.2 $ 16.6  
Non- controlling Interests      
Affiliate Equity [Line Items]      
Non-controlling interests $ 20.8 13.8  
Unrecognized Affiliate Equity Expense [Abstract]      
Remaining Life 5 years   5 years
Non-controlling Interests $ 109.5   $ 109.7
Affiliated Entity      
Affiliate Equity [Line Items]      
Controlling interest 4.4 $ 2.8  
Unrecognized Affiliate Equity Expense [Abstract]      
Controlling Interest $ 36.6   $ 35.9
Remaining Life 4 years   4 years