Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net earnings (loss)	$ 7,323	$ (19,843)
Foreign currency translation adjustments, net of tax of $138 and $438 for the three months ended 2019 and 2018, respectively	521	1,648
Total other comprehensive income	521	1,648
Comprehensive income (loss)	$ 7,844	$ (18,195)