Derivative And Hedging Activities Derivative Instruments Not Designated as Hedging Instruments (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Interest rate-related agreements, fair value	$ 42,980	$ 69,370
Other Assets [Member] | Interest Rate Related Instruments Customer and Mirror [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Notional Amount	1,821,787	1,728,545
Interest rate-related agreements, fair value	42,980	69,370
Receive Rate (1)	1.63%	1.30%
Pay Rate (1)	1.63%	1.30%
Maturity	3 years 9 months	3 years 11 months
Other Assets [Member] | Interest Rate Lock Commitments [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Notional Amount	102,225	351,786
Interest rate-related agreements, fair value	416	7,794
Other Assets [Member] | Foreign Exchange Forward [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Notional Amount	25,747	39,763
Interest rate-related agreements, fair value	748	1,341
Other Assets [Member] | Purchased option [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Notional Amount	115,953	111,262
Interest rate-related agreements, fair value	7,328	3,620
Other Liabilities [Member] | Interest Rate Related Instruments Customer and Mirror [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Notional Amount	1,821,787	1,728,545
Interest rate-related agreements, fair value	(45,815)	(75,131)
Receive Rate (1)	1.63%	1.30%
Pay Rate (1)	1.63%	1.30%
Maturity	3 years 9 months	3 years 11 months
Other Liabilities [Member] | Forward Contracts [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Notional Amount	135,000	520,000
Interest rate-related agreements, fair value	1,301	(147)
Other Liabilities [Member] | Foreign Exchange Forward [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Notional Amount	24,413	35,745
Interest rate-related agreements, fair value	(655)	(1,212)
Other Liabilities [Member] | Written Options [Member]
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Notional Amount	115,953	111,262
Interest rate-related agreements, fair value	$ (7,328)	$ (3,620)