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Employee Benefits (Details Textual) (USD $)
In Millions, unless otherwise specified
 9 Months Ended
Dec. 31, 2014
Employee Benefits (Textual) [Abstract]  
Aggregate payments $ 14.0us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInCurrentFiscalYear
Pension Benefits  
Employee Benefits (Textual) [Abstract]  
Estimated fiscal 2015 other post-retirement contributions 17.3us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInNextFiscalYear
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_PensionPlansDefinedBenefitMember
Other Post-Retirement Benefits  
Employee Benefits (Textual) [Abstract]  
Estimated fiscal 2015 other post-retirement contributions $ 1.7us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInNextFiscalYear
/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis
= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember