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Fair Value Measurements And Derivative Instruments (Schedule Of Fair Value Of Derivatives Designated As Fair Value Hedges) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Derivatives, Fair Value [Line Items]    
Derivative Asset, Fair Value, Gross Asset $ 80us-gaap_DerivativeFairValueOfDerivativeAsset $ 328us-gaap_DerivativeFairValueOfDerivativeAsset
Derivative Liability, Fair Value, Gross Liability $ 428us-gaap_DerivativeFairValueOfDerivativeLiability $ 24us-gaap_DerivativeFairValueOfDerivativeLiability