Acquisitions (Intangible Assets) (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 26, 2015	Sep. 27, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 11,538	$ 5,157
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	16 years	11 years
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 1,199	$ 1,529
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	7 years	7 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
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
Favorable Leases [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 1,039	$ 1,728
Acquired Finite-lived Intangible Asset, Weighted Average Useful Life	15 years	17 years