CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 28,996us-gaap_NetIncomeLoss	$ 26,345us-gaap_NetIncomeLoss	$ 27,258us-gaap_NetIncomeLoss
Other comprehensive income:
Unrealized holding gains/(losses) on securities available for sale	19,056	(37,001)	5,731
Reclassification adjustment for (gains) included in net income	(24)	(835)	(1,867)
Reclassification adjustment for other than temporary loss/(gain) included in net income			500
Tax effect	(6,453)	13,242	(1,528)
Other comprehensive income/(loss)	12,579	(24,594)	2,836
Comprehensive income	$ 41,575us-gaap_ComprehensiveIncomeNetOfTax	$ 1,751us-gaap_ComprehensiveIncomeNetOfTax	$ 30,094us-gaap_ComprehensiveIncomeNetOfTax

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount before tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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Amount before tax and reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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Amount before tax of other than temporary impairment loss (OTTI) on investments in available-for-sale and held-to-maturity debt securities, recognized in other comprehensive loss and attributable to parent entity.

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