Derivative and Hedging Activities Gains and Losses on Derivative Instruments Not Designated at Hedging Instruments (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 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	$ 85	$ 626
Capital Market Fees, Net [Member] | Foreign Exchange Forward [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain /(Loss) Recognized in Income	16	118
Mortgage Banking, Net [Member] | Interest Rate Lock Commitments (mortgage) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain /(Loss) Recognized in Income	637	1,024
Mortgage Banking, Net [Member] | Forward Contracts (mortgage) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain /(Loss) Recognized in Income	$ 453	$ (1,924)