Basic and Diluted Loss per Share - Schedule of Weighted Average of Potential Class A Common Stock Excluded from Computation of Earnings Per Share (Detail) - Class A - shares shares in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Class of Stock
Weighted shares of potential class A stock excluded from calculation of diluted earnings per share	3,786	3,262
2025 Convertible Notes
Class of Stock
Weighted shares of potential class A stock excluded from calculation of diluted earnings per share	1,633	1,633
2027 Convertible Notes
Class of Stock
Weighted shares of potential class A stock excluded from calculation of diluted earnings per share	733	334
Stock Options
Class of Stock
Weighted shares of potential class A stock excluded from calculation of diluted earnings per share	1,311	1,211
RSU
Class of Stock
Weighted shares of potential class A stock excluded from calculation of diluted earnings per share	107	81
Employee Stock Purchase Plan
Class of Stock
Weighted shares of potential class A stock excluded from calculation of diluted earnings per share	2	3