Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net income	$ 10,791	$ 9,835
Other comprehensive income, net of tax:
Unrealized gains arising during the period (net of tax of $370 and $1,968, respectively)	689	3,653
Unrealized gains (losses) on hedging instruments:
Unrealized gains (losses) arising during the period (net of tax of $47 and ($183), respectively)	85	(339)
Other comprehensive income, net of tax	774	3,314
Comprehensive income	$ 11,565	$ 13,149