Derivative and Hedging Activities Gains and Losses on Derivative Instruments Not Designated at Hedging Instruments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 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	$ (294)	$ 70
Capital Market Fees, Net [Member] | Foreign Exchange Forward [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain /(Loss) Recognized in Income	66	44
Mortgage Banking, Net [Member] | Interest Rate Lock Commitments (mortgage) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain /(Loss) Recognized in Income	1,738	375
Mortgage Banking, Net [Member] | Forward Contracts (mortgage) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain /(Loss) Recognized in Income	$ 640	$ (789)