CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016		Dec. 31, 2015	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 8,554		$ 8,065	$ 1,789
Other comprehensive income, net of tax:
Unrealized holding gains (losses) on securities arising during the period, net of income taxes (benefits)	1,565	[1]	(349)	835	[1]
Reclassification adjustment for net gain on sale of securities included in net income, net of income taxes	(436)	[2]	2	(68)	[2]
Net unrealized gain on securities, net of income taxes	1,129		(347)	767
Comprehensive income	$ 9,683		$ 7,718	$ 2,556

[1] Income tax (benefit) on the unrealized gains (losses) on securities was $1.1 million for the three months ended March 31, 2016, $(247,000) for the three months ended December 31, 2015, and $584,000 for the three months ended March 31, 2015

[2] Income tax (benefit) on the reclassification adjustment for net (gains) losses on sale of securities included in net income was $317,000 for the three months ended March 31, 2016, $(2,000) for the three months ended December 31, 2015, and $48,000 for the three months ended March 31, 2015.