Derivative Financial Instruments (Changes In Fair Value Of Non-Hedge Accounting Derivatives) (Detail) (Not Designated as Hedging Instrument [Member], Interest Expense [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Derivative [Line Items]
Non-interest Income	$ 1,061	$ 1,222	$ 2,854	$ 3,744
Visa swap [Member]
Derivative [Line Items]
Non-interest Income	(35)	(60)	(86)	(532)
Interest Rate Swap [Member]
Derivative [Line Items]
Non-interest Income	1,546	1,511	3,230	4,288
Forward Contracts [Member]
Derivative [Line Items]
Non-interest Income	$ (450)	$ (229)	$ (290)	$ (12)