Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net unrealized holding gain from available for sale securities arising during the period, tax	$ (17,498)	$ (1,902)	$ 7,462
Reclassification adjustment of net gain from sale of available for sale securities included in income, tax	163	1,316	48
Reclassification adjustment of net gain included in income, tax	0	0	79
Net unrealized gain from unfunded defined benefit plan liability arising during the period, tax	780	0	154
Less: amortization of unrecognized net actuarial loss included in net periodic pension cost, tax	$ (135)	$ (38)	$ (31)