Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (96,071)	$ (25,032)	$ (18,191)
Foreign currency translation adjustment	(93)	(1,896)	3,625
Comprehensive loss	$ (96,164)	$ (26,928)	$ (14,566)