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Acquisitions (Schedule Of Intangible Assets Acquired) (Details) - USD ($) $ in Thousands	9 Months Ended
	Dec. 24, 2016	Dec. 26, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 16,329	$ 11,527
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	10 years
Franchise Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets		7,100
Customer Lists [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 9,526	647
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	9 years
Favorable Leases [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 5,480	1,780
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	10 years
Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 1,323	$ 2,000
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	11 years
Fiscal 2016 Acquisitions [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	13 years
Fiscal 2016 Acquisitions [Member] | Franchise Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	13 years
Fiscal 2016 Acquisitions [Member] | Customer Lists [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	7 years
Fiscal 2016 Acquisitions [Member] | Favorable Leases [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	13 years
Fiscal 2016 Acquisitions [Member] | Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	15 years

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- Definition

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+ References

No definition available.

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472

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