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Employee Retirement Plans (Schedule of Expected Benefit Payments) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]  
2015 $ 395us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
2016 372us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
2017 360us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
2018 327us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
2019 228us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
Years 2020 - 2024 $ 537us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter