Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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-Publisher SEC

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- Definition

As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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- Definition

Number of additional shares authorized for issuance under an established share-based compensation plan.

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No definition available.

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Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Counted Against Available-For-Grant Limit for Every One Share Awarded

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Termination date of Third Amended 2005 Plan

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Employee Stock Plans - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended			9 Months Ended		1 Months Ended
	Jun. 28, 2013	Jun. 29, 2012	Jun. 28, 2013	Jun. 29, 2012	Feb. 29, 2012	Jun. 28, 2013 Stock Options	Jun. 28, 2013 Restricted Stock Restricted Stock Units Deferred Stock Units And Performance Units	Feb. 29, 2012 Third Amended and Restated 2005 Plan	Jun. 28, 2013 Third Amended and Restated 2005 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available for grant increased by								6,000,000
Shares counted against the available for grant					2.5			2.6	2.6
Extend term of the amended plan								Nov. 11, 2021
Share-based compensation expense	$ 10,500,000	$ 11,500,000	$ 33,900,000	$ 36,700,000
Tax benefit recognized on share-based compensation expense	3,181,000	3,728,000	10,359,000	11,776,000
Unrecognized compensation expense related to outstanding stock awards						$ 11,500,000	$ 37,700,000
Weighted average period unrecognized compensation expense is expected to be recognized, years						1 year 8 months 18 days	1 year 10 months 24 days