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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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Roll-forward of Restructuring Accrual (Detail) (USD $) In Thousands, unless otherwise specified	8 Months Ended	12 Months Ended		3 Months Ended			12 Months Ended	3 Months Ended	12 Months Ended
	Mar. 23, 2013	Jul. 31, 2013	Mar. 24, 2013	Apr. 27, 2013 Workforce reduction	Jan. 26, 2013 Workforce reduction	Oct. 27, 2012 Workforce reduction	Jul. 31, 2013 Workforce reduction	Oct. 27, 2012 Contract termination costs	Jul. 31, 2013 Contract termination costs
Restructuring Cost and Reserve [Line Items]
Accrual Balance, Beginning			$ 3,309
Additions	2,946	6,255		4,000	260	1,580	5,844	410	411
Adjustments		(161)					(94)		(67)
Payments		6,094					5,750		344
Accrual Balance, Ending