CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (26,757)	$ (10,630)	$ (171,644)	$ (36,417)
Unrealized net loss on marketable securities	0	(64)	(26)	(33)
Total comprehensive loss	$ (26,757)	$ (10,694)	$ (171,670)	$ (36,450)