CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net loss	$ (36,562)	$ (15,571)	$ (24,122)
Other comprehensive loss, net of applicable tax:
Foreign currency translation adjustments	1,432	(1,115)	(823)
Comprehensive loss	$ (35,130)	$ (16,686)	$ (24,945)