Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net loss	$ (81,197)	$ (63,100)	$ (209,445)	$ (177,297)
Other comprehensive income (loss):
Unrealized gain (loss) on available-for-sale securities	210	(11)	(157)	(43)
Comprehensive loss	$ (80,987)	$ (63,111)	$ (209,602)	$ (177,340)