Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net income	$ 41,419	$ 39,365	$ 98,826	$ 97,875
Other comprehensive income (loss), net of tax:
Amortization of loss on cash flow hedge	215	215	646	646
Foreign currency translation adjustment	(951)	(1,387)	(2,223)	(357)
Other comprehensive income (loss), net of tax	(736)	(1,172)	(1,577)	289
Comprehensive income	$ 40,683	$ 38,193	$ 97,249	$ 98,164