Equity - Schedule of Basic and Diluted Earnings Per Share, or EPS, Based on Weighted-Average of Both Restricted and Unrestricted Class A Common Stock Outstanding (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net (loss) income	$ (53,350)	$ 76,565
Weighted-average shares outstanding, basic and diluted	135,619,264	124,333,048
Per share amount, basic and diluted	$ (0.39)	$ 0.62