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Pension and Postretirement Benefit Plans (Schedule of Estimated Future Benefit Payments) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]  
2015 $ 13us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
2016 13us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
2017 13us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
2018 13us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
2019 13us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
2020-2024 $ 54us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter