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Goodwill and Intangible Assets (Composition of other intangible assets) (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Mar. 25, 2017
--- | --- | ---
Composition of other intangible assets |  |
Gross carrying amount | $ 90,150 | $ 88,479
Accumulated amortization | 41,007 | 34,191
Customer Lists [Member] |  |
Composition of other intangible assets |  |
Gross carrying amount | 33,832 | 34,489
Accumulated amortization | 19,637 | 16,372
Favorable Leases [Member] |  |
Composition of other intangible assets |  |
Gross carrying amount | 27,656 | 25,378
Accumulated amortization | 9,470 | 7,764
Trade Names [Member] |  |
Composition of other intangible assets |  |
Gross carrying amount | 20,852 | 20,852
Accumulated amortization | 9,644 | 8,358
Franchise Agreements [Member] |  |
Composition of other intangible assets |  |
Gross carrying amount | 7,220 | 7,220
Accumulated amortization | 1,713 | 1,167
Other Intangible Assets [Member] |  |
Composition of other intangible assets |  |
Gross carrying amount | 590 | 540
Accumulated amortization | $ 543 | $ 530

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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