Acquisitions (Schedule Of Intangible Assets Acquired) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 26, 2016	Mar. 28, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 11,270	$ 8,608
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	16 years	11 years
Franchise Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 7,200
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	18 years
Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 2,100	$ 1,900
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	15 years	10 years
Favorable Leases [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 1,281	$ 4,482
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	15 years	14 years
Customer Lists [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 689	$ 2,226
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	7 years	7 years