CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Net income	$ 5,715		$ 5,662
Available-for-sale securities:
Net unrealized gains (losses) on available-for-sale securities arising during the period, net of tax of ($1,041) and $1,507, respectively	1,933		(2,799)
Reclassification of gains included in net income, net of tax of $58 and $48, respectively(1)	(108)	[1]	(90)	[1]
Net change in unrealized gains (losses) on available-for-sale securities, net of tax	1,825		(2,889)
Net change in unrealized (losses) gains on cash flow hedging derivatives, net of tax of $583 and ($458), respectively	(1,083)		850
Reclassification of amortization of net unrecognized actuarial loss and prior service cost, net of tax of ($15) and ($25), respectively(2)	27	[2]	47	[2]
Other comprehensive income (loss)	769		(1,992)
Comprehensive income	$ 6,484		$ 3,670

[1] Reclassified into the consolidated statements of income in net gain on sale of securities.

[2] Reclassified into the consolidated statements of income in salaries and employee benefits.