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Employee Retirement Benefits (Summary Of Components Of Net Periodic (Benefit) Cost) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Employee Retirement Benefits [Abstract]      
Service cost $ 8us-gaap_DefinedBenefitPlanServiceCost $ 5us-gaap_DefinedBenefitPlanServiceCost $ 275us-gaap_DefinedBenefitPlanServiceCost
Interest cost 143us-gaap_DefinedBenefitPlanInterestCost 186us-gaap_DefinedBenefitPlanInterestCost 244us-gaap_DefinedBenefitPlanInterestCost
Expected return on plan assets (188)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets (229)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets (262)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets
Amortization of prior service cost   211us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit  
Net periodic pension (benefit) cost $ (37)us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost $ 173us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost $ 257us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost