CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Unrealized holding gain (loss) on securities available for sale arising during the period, income tax	$ (6,841)	$ 654	$ 10,658
Unrealized gain (loss) on securities transferred to held-to-maturity, tax	(1,786)	0	2,864
Unrealized gain (loss) on securities available for sale for which a portion of an other than temporary impairment has been recognized in income, tax	767	(56)	86
Unrealized gains/(losses) arising during the period, tax	831	(514)	(1,146)
Reclassification adjustment for gains (losses) included in net income, tax	157	(759)	(714)
Defined benefit pension plans gain (loss), tax	$ 6,382	$ (346)	$ (2,492)