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	$ (21,925)	$ (33,084)	$ (66,415)	$ (118,913)
Other comprehensive income (loss):
Unrealized gain (loss) on available-for-sale securities, net of tax	32	(1)	(14)	(1,130)
Foreign currency translation adjustments	(86)	(153)	47	(522)
Other comprehensive income (loss)	(54)	(154)	33	(1,652)
Total comprehensive loss	$ (21,979)	$ (33,238)	$ (66,382)	$ (120,565)