Derivative and Hedging Activities Gains and Losses on Derivative Instruments Not Designated at Hedging Instruments (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Capital Market Fees, Net [Member] | Interest Rate Related Instruments Customer and Mirror [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain /(Loss) Recognized in Income	$ 255	$ (9)
Capital Market Fees, Net [Member] | Foreign Exchange Forward [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain /(Loss) Recognized in Income	128	70
Mortgage Banking, Net [Member] | Interest Rate Lock Commitments (mortgage) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain /(Loss) Recognized in Income	(870)	1,634
Mortgage Banking, Net [Member] | Forward Contracts (mortgage) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain /(Loss) Recognized in Income	$ 5,204	$ (2,959)