Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 6,264	$ 4,806
Other Comprehensive Income [Abstract]
Unrealized gains on available-for-sale securities, net of taxes of $(2,037) and $(1,663) for three months ended March 31, 2017 and 2016, respectively.	3,189	2,607
Amortized holding losses on held-to-maturity securities transferred from available-for-sale, net of taxes of $(11) and $(69) for three months ended March 31, 2017 and 2016, respectively.	17	107
Less: reclassification adjustment for realized gains included in net income, net of taxes of $0 and $101 for three months ended March 31, 2017 and 2016, respectively.	0	(159)
Other comprehensive income, net of taxes	3,206	2,555
Comprehensive income	$ 9,470	$ 7,361