Earnings Per Share - Antidilutive securities excluded from the computation of net income per share (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-Dilutive Weighted Average Shares Outstanding (in shares)	19,832,792	23,094,849	20,123,304	24,170,812
Holdings limited partnership units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-Dilutive Weighted Average Shares Outstanding (in shares)	14,255,722	17,692,268	14,659,748	18,880,709
Unvested restricted share-based awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-Dilutive Weighted Average Shares Outstanding (in shares)	5,577,070	5,402,581	5,463,556	5,290,103