Derivative And Hedging Activities Gains and Losses on Derivative Instruments Not Designated at Hedging Instruments (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Interest Rate Lock Commitments [Member]
Gain (loss) on derivative instruments not designated as hedging instruments
Gain / (Loss) Recognized in Income	$ 1,024	$ (4,234)
Forward Contracts [Member]
Gain (loss) on derivative instruments not designated as hedging instruments
Gain / (Loss) Recognized in Income	(1,924)	(4,406)
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	626	2,600
Capital Market Fees [Member] | Foreign Exchange Forward [Member]
Gain (loss) on derivative instruments not designated as hedging instruments
Gain / (Loss) Recognized in Income	$ 118	$ 4