Postretirement Benefit Plans (Schedule of Fair Value of Financial Instruments - Pension) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 28, 2015
Defined Benefit Plan Disclosure [Line Items]
Assets, Fair Value Disclosure	$ 26,735
Cash And Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets, Fair Value Disclosure	1,160
Pension Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets, Fair Value Disclosure	25,575
Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets, Fair Value Disclosure	1,160
Quoted Prices in Active Markets for Identical Assets Level 1 [Member] | Cash And Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets, Fair Value Disclosure	1,160
Significant Other Observable Inputs Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets, Fair Value Disclosure	25,575
Significant Other Observable Inputs Level 2 [Member] | Pension Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Assets, Fair Value Disclosure	$ 25,575