Condensed consolidated statements of comprehensive loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Condensed consolidated statements of comprehensive income (loss)
Net loss	$ (2,828)	$ (12,054)
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax	354	(384)
Comprehensive loss	(2,474)	$ (12,438)
Less: Comprehensive income attributable to noncontrolling interest	(238)
Comprehensive loss attributable to common shareholders	$ (2,712)