Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (35,523)	$ (10,252)	$ (48,439)	$ (19,574)
Other comprehensive loss:
Cumulative translation loss				(19)
Comprehensive loss	$ (35,523)	$ (10,252)	$ (48,439)	$ (19,593)