Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net income	$ 40,270	$ 40,653
Other comprehensive income, net of tax:
Gain on cash flow hedges, net of tax expense of $103 and $86	163	139
Comprehensive income	$ 40,433	$ 40,792