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Derivative Instruments And Hedging Activities (Narrative) (Details) (Interest Rate Swap Contracts [Member], USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Interest Rate Swap Contracts [Member]
  
Derivative [Line Items]  
Agreement related to the outstanding trust preferred capital notes, date Dec. 04, 2008
Agreement effective, date Dec. 01, 2008
Notional amount of derivatives $ 7.0invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
Agreement expiration date Dec. 01, 2016
Derivative, Fixed Interest Rate 2.85%us-gaap_DerivativeFixedInterestRate
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember