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Benefit Plans (Estimated Future Benefit Payments) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Benefit Plans [Abstract]  
2015 $ 576us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
2016 278us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
2017 300us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
2018 353us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
2019 425us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
2020-2024 $ 3,081us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter