Consolidated Statements of Income and Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Change in net unrealized gain/loss on securities available for sale, tax	$ 396	$ 759	$ 1,186	$ 892
Change in the non-credit portion of OTTI losses recognized in other comprehensive income, tax	12	11	36	33
Change in pension and post-retirement obligations, tax	$ 946	$ 879	$ 2,837	$ 2,638