Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (12,913)	$ (8,215)	$ (32,858)	$ (27,242)
Other comprehensive loss:
Foreign currency translation	(144)	(1,082)	(379)	(985)
Total comprehensive loss	$ (13,057)	$ (9,297)	$ (33,237)	$ (28,227)