Quarterly Financial Data (Unaudited) - Summary of the Company's Information on Total Revenue, Gross Profit, Net Income (Loss) and Earnings Per Share by Quarter (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Total net revenue	$ 275,739	$ 173,381	$ 156,810	$ 136,576	$ 188,261	$ 124,782	$ 99,627	$ 100,093	$ 742,506	$ 512,763	$ 398,649
Gross Profit	112,291	78,993	77,752	63,112	73,461	49,895	37,637	38,840	$ 332,148	$ 199,833	$ 121,045
Net income (loss) attributable to common stockholders	$ 6,778	$ (9,527)	$ 526	$ (6,634)	$ 6,941	$ (46,235)	$ (15,513)	$ (8,702)
Basic net income (loss) per share attributable to common stockholders	$ 0.06	$ (0.09)	$ 0.01	$ (0.07)	$ 0.07	$ (8.79)	$ (3.18)	$ (1.79)
Diluted net income (loss) per share attributable to common stockholders	$ 0.05	$ (0.09)	$ 0.00	$ (0.07)	$ 0.06	$ (8.79)	$ (3.18)	$ (1.79)