Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Comprehensive Income [Abstract]
Net income	$ 27,173	$ 33,104	$ 28,296
Other comprehensive income, net of tax:
Unrealized gain/(loss) on investment securities arising during the period, net of income tax expense/(benefit) of $3,762, $(7,059), and $3,384, respectively	6,061	(11,371)	4,894
Less: reclassification adjustment for realized gains on sale of securities available for sale included in net income, net of income tax expense of $0, $496, and $450, respectively	0	(799)	(706)
Total other comprehensive income (loss)	6,061	(12,170)	4,188
Total comprehensive income	$ 33,234	$ 20,934	$ 32,484