Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share of Common Stock (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Earnings Per Share [Abstract]
Net loss	$ (180,617)	$ (32,875)
Weighted-average shares outstanding, basic and diluted	119,131	10,820
Net loss per share, basic and diluted	$ (1.52)	$ (3.04)