Equity - Schedule of Movement in Outstanding Shares of Class A Common Stock, Restricted Class A Common Stock and Deferred Stock Units (Detail) - shares	1 Months Ended	3 Months Ended
	May 31, 2013	Mar. 31, 2021	Mar. 31, 2020
Equity [Abstract]
Beginning balance		147,086,722	135,263,728
Issuance of class A common stock	25,875,000	515	325
Issuance of restricted class A common stock, net		250,536	351,333
Issuance of deferred stock units		11,437	7,983
Ending balance		147,349,210	135,623,369