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Pension Plans (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended
Apr. 04, 2015
Mar. 29, 2014
Jan. 03, 2015
Pension and Other Postretirement Benefit Expense [Abstract]      
Estimated net actuarial loss to be amortized from accumulated other comprehensive loss $ 4.6us-gaap_DefinedBenefitPlanFutureAmortizationOfGainLoss    
Estimated prior service cost to be amortized from accumulated other comprehensive loss 0.2us-gaap_DefinedBenefitPlanFutureAmortizationOfPriorServiceCostCredit    
Contribution to defined benefit pension plans 0.8us-gaap_DefinedBenefitPlanContributionsByEmployer 0.5us-gaap_DefinedBenefitPlanContributionsByEmployer 3.1us-gaap_DefinedBenefitPlanContributionsByEmployer
Expected total contribution to defined benefit pension plans $ 3.3us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInCurrentFiscalYear