Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (87,933)	$ (56,241)
Other comprehensive loss:
Unrealized loss on available-for-sale debt securities	(5)	(29)
Total comprehensive loss	$ (87,938)	$ (56,270)