Derivative And Hedging Activities Income Statement Category of the Gains and Losses (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Capital Market Fees [Member] | Interest Rate Related Instruments Customer and Mirror [Member]
Gain (loss) on derivative instruments not designated as hedging instruments
Gain / (Loss) Recognized in Income	$ 486	$ 2,926
Capital Market Fees [Member] | Foreign Currency Exchange Forward [Member]
Gain (loss) on derivative instruments not designated as hedging instruments
Gain / (Loss) Recognized in Income	90	(36)
Mortgage Banking [Member] | Interest Rate Lock Commitments [Member]
Gain (loss) on derivative instruments not designated as hedging instruments
Gain / (Loss) Recognized in Income	1,531	(7,378)
Mortgage Banking [Member] | Forward Contracts [Member]
Gain (loss) on derivative instruments not designated as hedging instruments
Gain / (Loss) Recognized in Income	$ (3,736)	$ 1,448