Net Income (Loss) Per Share Attributable to Class A Common Shareholders - Schedule of Calculations of Basic and Diluted Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Numerator:
Net income (loss) attributable to holders of shares of Class A common stock—basic	$ 105,095	$ 140,680	$ 29,400
Class A Common Stock
Numerator:
Net income (loss) attributable to holders of shares of Class A common stock—basic	105,095	140,680	29,400
Add (deduct) dilutive effect of:
Net income (loss) attributable to holders of shares of Class A common stock—diluted	$ 105,095	$ 140,680	$ 29,400
Denominator:
Weighted average shares of Class A common stock outstanding—basic	50,373,874	43,216,358	30,597,058
Add (deduct) dilutive effect of:
Weighted average number of incremental shares issuable from unvested restricted stock, RSUs and stock options, as calculated using the treasury stock method	5,139,275	7,474,170	7,078,453
Weighted average shares of Class A common stock outstanding—diluted	55,513,149	50,690,528	37,675,511
Net income (loss) per share attributable to holders of shares of Class A common stock
Basic (in dollars per share)	$ 2.09	$ 3.26	$ 0.96
Diluted (in dollars per share)	$ 1.89	$ 2.78	$ 0.78