Components of Other Comprehensive Income/(loss) (Schedule of Reclassification from AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Accumulated Other Comprehensive Income Loss [Line Items]
Amounts reclassifed from AOCI	$ 294	$ (268)
Securities AFS
Accumulated Other Comprehensive Income Loss [Line Items]
Realized gains/(losses)	(44)	(1,654)
Tax expense/(benefit)	17	634
Amounts reclassifed from AOCI	(27)	(1,020)
Cash Flow Hedges
Accumulated Other Comprehensive Income Loss [Line Items]
Realized gains/(losses)	(1,380)	(606)
Tax expense/(benefit)	528	232
Amounts reclassifed from AOCI	(852)	(374)
Pension and Postretirement Plans
Accumulated Other Comprehensive Income Loss [Line Items]
Realized gains/(losses)	1,900	1,826
Tax expense/(benefit)	(727)	(700)
Amounts reclassifed from AOCI	$ 1,173	$ 1,126

Reclassificaition from Accumulated Other Comprehensive Income, Current Period, Net of Tax

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+ References

No definition available.

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Amount before tax of reclassification adjustments of other comprehensive income (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580

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Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 20
-Section 45
-Paragraph 11
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=65896914&loc=d3e39076-109324

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e640-108580

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