Derivative Instruments (Schedule Of Notional Amounts Of Derivative Instruments) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Derivative [Line Items]
Notional Amount of Derivatives	$ 787,985	$ 740,332
Interest Rate Swaps [Member]
Derivative [Line Items]
Notional Amount of Derivatives	658,926	596,933
Interest Rate Caps [Member]
Derivative [Line Items]
Notional Amount of Derivatives	8,736	9,736
Credit Risk Participation Agreements [Member]
Derivative [Line Items]
Notional Amount of Derivatives	73,888	52,456
Foreign Exchange Contracts [Member]
Derivative [Line Items]
Notional Amount of Derivatives	$ 46,435	$ 81,207