CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Unrealized holding losses on securities available-for-sale arising during period, tax effects	$ (1,041)	$ 1,507
Reclassification adjustment for gains included in net income, tax effect	58	48
Unrealized gain on cash flow hedging derivatives, tax effect	583	(458)
Net actuarial gain arising during period, tax effect	$ (15)	$ (25)