Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Condensed Consolidated Statements of Comprehensive Income
Net income	$ 5,104	$ 23,708
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment during the period	437	1,312
Other comprehensive (loss) income	437	1,312
Comprehensive income	$ 5,541	$ 25,020