Condensed consolidated statements of comprehensive income (loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Condensed consolidated statements of comprehensive income (loss)
Net income (loss)	$ 3,102	$ (7,656)	$ 274	$ (19,710)
Other comprehensive loss:
Foreign currency translation adjustments, net of tax	(687)	(1,122)	(333)	(1,506)
Comprehensive income (loss)	2,415	$ (8,778)	(59)	$ (21,216)
Less: Comprehensive income attributable to noncontrolling interest	(2,025)		(2,263)
Comprehensive income (loss) attributable to common shareholders	$ 390		$ (2,322)