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Employee Retirement and Profit Sharing Plans (Fair value measurement information for the Company's major categories of defined benefit plan assets) (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Mar. 25, 2017 | Mar. 26, 2016
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets | $ 20,629 | $ 20,702 | $ 19,465
U.S. Companies Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets | 8,062 | 8,296 |
International Companies Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets | 4,186 | 3,839 |
U.S. Corporate Bonds Fixed Income [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets | 7,505 | 7,902 |
International Bonds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets | 614 | 317 |
Cash and Cash Equivalents [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets | 262 | 348 |
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets | 11,971 | 11,823 |
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Companies Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets | 7,785 | 7,984 |
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | International Companies Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets | 4,186 | 3,839 |
Significant Other Observable Inputs (Level 2) [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets | 8,658 | 8,879 |
Significant Other Observable Inputs (Level 2) [Member] | U.S. Companies Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets | 277 | 312 |
Significant Other Observable Inputs (Level 2) [Member] | U.S. Corporate Bonds Fixed Income [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets | 7,505 | 7,902 |
Significant Other Observable Inputs (Level 2) [Member] | International Bonds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets | 614 | 317 |
Significant Other Observable Inputs (Level 2) [Member] | Cash and Cash Equivalents [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets | 262 | 348 |
Significant Unobservable Inputs (Level 3) [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets |  |  |
Significant Unobservable Inputs (Level 3) [Member] | U.S. Companies Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets |  |  |
Significant Unobservable Inputs (Level 3) [Member] | International Companies Equity Securities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets |  |  |
Significant Unobservable Inputs (Level 3) [Member] | U.S. Corporate Bonds Fixed Income [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets |  |  |
Significant Unobservable Inputs (Level 3) [Member] | International Bonds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets |  |  |
Significant Unobservable Inputs (Level 3) [Member] | Cash and Cash Equivalents [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair value measurement of defined benefit plan assets |  |  |

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- Definition Fair value of assets that have been segregated and restricted to provide pension or postretirement benefits. Assets include, but are not limited to, stocks, bonds, other investments, earnings from investments, and contributions by the employer and employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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