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Derivatives And Hedging (Schedule Of Interest Rate Contracts Reported At Fair Value) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Derivatives, Fair Value [Line Items]    
Derivative assets $ 13,620 $ 9,926
Derivative liabilities 537 768
Other Assets, Net [Member] | Interest Rate Contracts [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative assets 13,620 9,926
Other Liabilities, Net [Member] | Interest Rate Contracts [Member]
   
Derivatives, Fair Value [Line Items]    
Derivative liabilities $ 537 $ 768