CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Unrealized holding losses on securities available-for-sale arising during period, tax effects	$ 1,189	$ 1,111	$ (2,749)	$ 9,426
Reclassification adjustment for gains included in net income, tax effect	0	227	158	275
Unrealized gain on cash flow hedging derivatives, tax effect	50	(239)	1,070	(1,933)
Net actuarial gain arising during period, tax effect	$ (13)	$ (25)	$ (40)	$ (75)