Components of Other Comprehensive Income/(loss) (Schedule of Reclassification from AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Accumulated Other Comprehensive Income Loss [Line Items]
Amounts reclassifed from AOCI	$ 604	$ (3,855)	$ 806	$ (1,761)
Securities AFS
Accumulated Other Comprehensive Income Loss [Line Items]
Realized gains/(losses)	0	0	(1,654)	0
Tax expense/(benefit)	0	0	634	0
Amounts reclassifed from AOCI	0	0	(1,020)	0
Cash Flow Hedges
Accumulated Other Comprehensive Income Loss [Line Items]
Realized gains/(losses)	(582)	0	(1,795)	0
Tax expense/(benefit)	223	0	688	0
Amounts reclassifed from AOCI	(359)	0	(1,107)	0
Pension and Postretirement Plans
Accumulated Other Comprehensive Income Loss [Line Items]
Realized gains/(losses)	1,561	(6,266)	4,756	(2,854)
Tax expense/(benefit)	(598)	2,411	(1,823)	1,093
Amounts reclassifed from AOCI	$ 963	$ (3,855)	$ 2,933	$ (1,761)