Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net loss:	$ (772)	$ (7,476)
Other comprehensive loss
Foreign currency translation adjustments	(1,198)	(508)
Total other comprehensive loss	(1,198)	(508)
Total comprehensive loss	$ (1,970)	$ (7,984)