Unaudited Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net income	$ 37,333	$ 30,046
Foreign currency translation adjustment	28	0
Other comprehensive income (loss), before tax	28	0
Income tax expense on other comprehensive income (loss)	0	0
Other comprehensive income (loss), net of tax	28	0
Comprehensive income	$ 37,361	$ 30,046