Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net loss	$ (49,062)	$ (53,582)	$ (90,461)	$ (110,996)
Comprehensive income (loss):
Unrealized loss on investments	(170)	(41)	(184)	(173)
Foreign currency translation adjustments	(455)	(64)	(545)	(149)
Comprehensive loss	$ (49,687)	$ (53,687)	$ (91,190)	$ (111,318)