Derivative Instruments (Effect Of Fair Value Hedges On Consolidated Statements Of Income) (Details) (Not Designated As Hedging Instruments [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	$ (656)		$ 3,783		$ (426)
Other Non-Interest Income [Member] | Interest Rate Contracts [Member]
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	89	[1]	1,419	[1]	(819)	[1]
Mortgage Revenues [Member] | Mortgage Derivatives [Member]
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	$ (745)	[2]	$ 2,364	[2]	$ 393	[2]

[1] Gain (loss) represents net fair value adjustments (including credit related adjustments) for customer swaps and offsetting positions.

[2] Gain (loss) represents net fair value adjustments recorded for interest rate lock commitments and commitments to sell mortgage loans to third-party investors.