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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

X

- 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

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X

- Definition

Amount before 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

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