Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (269,476)	$ (355,928)	$ (285,305)
Other comprehensive loss, net of tax:
Unrealized gain (loss) on marketable securities, net	(2,961)	(1,396)	4
Total comprehensive loss	$ (272,437)	$ (357,324)	$ (285,301)