Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income	$ 38,450	$ 27,173	$ 33,104
Other comprehensive (loss) income, net of tax:
Unrealized (losses) gains on investment securities arising during the period, net of income tax (benefit) expense of ($899), $3,762, and $(7,059), respectively	(1,449)	6,061	(11,371)
Less: Reclassification adjustment for realized gains on sale of securities available for sale included in net income, net of income tax expense of $9, $0, and $496, respectively	(14)	0	(799)
Total other comprehensive (loss) income	(1,463)	6,061	(12,170)
Total comprehensive income	$ 36,987	$ 33,234	$ 20,934