Derivatives and Hedging Activity (Derivative Instruments, Gain (Loss)) (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Gains and losses recognized in income on non-designated hedging instruments
Amount of Gain / (Loss) Recognized in Income on Derivatives	$ (3,147)	$ (864)	$ (3,296)
Mortgage Loan Commitments | Other income
Gains and losses recognized in income on non-designated hedging instruments
Amount of Gain / (Loss) Recognized in Income on Derivatives	(1,260)	517	(3,509)
Forward Contracts | Other income
Gains and losses recognized in income on non-designated hedging instruments
Amount of Gain / (Loss) Recognized in Income on Derivatives	267	(656)	446
Credit contracts | Other income
Gains and losses recognized in income on non-designated hedging instruments
Amount of Gain / (Loss) Recognized in Income on Derivatives	(2,154)	(210)	(233)
Other | Other Expenses
Gains and losses recognized in income on non-designated hedging instruments
Amount of Gain / (Loss) Recognized in Income on Derivatives	$ 0	$ (515)	$ 0