Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (1,441)	$ 3,644	$ 4,147	$ 21,712
Foreign currency translation adjustments (net of tax benefit of $713, $0, $604, $987)	(3,897)	(1,670)	(4,097)	(11,548)
Comprehensive income (loss)	$ (5,338)	$ 1,974	$ 50	$ 10,164