Consolidated Statements Of Income And 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
Change in net unrealized gain/loss on securities available for sale, tax	$ 1,770	$ 3,498	$ 4,152	$ 6,971
Change in the non-credit portion of OTTI losses recognized in other comprehensive income, tax	10	17	4,795	48
Change in pension and post-retirement obligations, tax	1,008	1,042	3,024	3,128
Reclassification adjustment for sales of available for sale securities, tax	$ 405	$ 204	$ 2,503	$ 536