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 Other Comprehensive Income [Abstract]
Net loss	$ (16,437)	$ (58,295)	$ (80,701)	$ (108,978)
Other comprehensive loss:
Foreign currency translation loss	17	23	(170)	(42)
Loss on investments in available-for-sale-securities	(3,063)	(147)	(9,745)	(225)
Total other comprehensive loss	(3,046)	(124)	(9,915)	(267)
Comprehensive loss	$ (19,483)	$ (58,419)	$ (90,616)	$ (109,245)