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Operating Leases and Other Commitments (Narrative) (Details) - USD ($)						12 Months Ended
	Oct. 01, 2015	Oct. 01, 2014	Aug. 27, 2014	Feb. 28, 2014	Oct. 01, 2012	Mar. 26, 2016	Mar. 28, 2015	Mar. 29, 2014	Mar. 31, 2015
Operating Leases And Other Commitments [Line Items]
Rent expense under operating leases, net of sublease income						$ 36,717,000	$ 35,848,000	$ 33,093,000
Contingent rentals						59,000	44,000	59,000
Sublease income						$ 149,000	$ 161,000	$ 280,000
Percentage of annual purchases of specific products bought from entering contracts						100.00%
Maximum purchase commitment expiration date						July 2017
Chief Executive Officer [Member]
Operating Leases And Other Commitments [Line Items]
Stated base salary per agreement					$ 550,000
Number of stock options awarded					300,000
Stock option exercise price					$ 33.64
New employment agreement period					5 years
Vesting period of employee options					4 years
Executive Vice President [Member]
Operating Leases And Other Commitments [Line Items]
Stated base salary per agreement				$ 242,500
Employment Period Start Date				Apr. 01, 2014
Employment Period End Date				Jun. 01, 2017
Executive Vice President And Chief Financial Officer [Member]
Operating Leases And Other Commitments [Line Items]
Stated base salary per agreement									$ 375,000
Number of stock options awarded			35,000
Stock option exercise price			$ 52.82
Option term						5 years
Vesting period of employee options			4 years
Executive Chairman [Member]
Operating Leases And Other Commitments [Line Items]
Stated base salary per agreement	$ 120,000	$ 360,000			$ 420,000
Salary reduction		$ 60,000
New employment agreement period	3 years				3 years
Total amount of additional bonus payable in five annual installments					$ 750,000
Future additional bonus payable per annum installment					$ 150,000

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The increases or decreases in lease payments that result from changes occurring after the inception of the lease in the factors (other than the passage of time) on which lease payments are based, except that any escalation of minimum lease payments relating to increases in construction or acquisition cost of the leased property or for increases in some measure of cost or value during the construction or preconstruction period, are excluded from contingent rentals. Contingent rentals also may include amounts for which the triggering events have not yet occurred or the specified targets for which have not yet been achieved (such as sales based percentage rent), but which events are considered probable of occurring or which specified targets are considered probable of being achieved.

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