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Shareholders' Equity / Partners' Capital - Share Repurchase (Details)
$ in Millions
Sep. 30, 2021
USD ($)
Class A common shares/units  
Class of Stock [Line Items]  
Repurchase of shares, authorized amount $ 300.0
Remaining repurchase authorization 265.1
Preferred Shares/Units  
Class of Stock [Line Items]  
Repurchase of shares, authorized amount 250.0
Remaining repurchase authorization $ 250.0