Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - 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	$ (30,169)	$ (34,274)	$ (74,299)	$ (84,040)
Foreign currency:
Comprehensive income (loss)	(1)	31	(46)	30
Marketable securities:
Comprehensive (loss) income	(1,759)	(121)	(9,918)	150
Adjustment for net losses (income) realized in net loss	(97)	144	2,132	(203)
Other comprehensive loss	(1,856)	23	(7,786)	(53)
Total other comprehensive (loss) income	(1,857)	54	(7,832)	(23)
Total comprehensive loss	$ (32,026)	$ (34,220)	$ (82,131)	$ (84,063)