Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net unrealized holding gain (loss) from available for sale securities arising during the period, tax	$ 3,235	$ 1,432	$ (12,238)	$ 1,345
Reclassification adjustment of net gain from sale of available for sale securities included in income, tax	0	0	163	23
Reclassification adjustment of net gain included in income, tax	0	0	0	0
Net unrealized gain from unfunded defined benefit plan liability arising during the period, tax	0	0	412	0
Less: amortization of unrecognized net actuarial loss included in net periodic pension cost, tax	$ (33)	$ (7)	$ (98)	$ (31)