Restricted Stock Awards Activity and Price (Detail) (USD $)	12 Months Ended
Oct. 02, 2011	Oct. 03, 2010	Sep. 27, 2009
Restricted Stock Awards
Assumed from acquisition	252,399
Restricted Stock Units
Restricted Stock Awards
Outstanding and Unvested Beginning Balance	1,916,277	1,619,696	593,529
Granted	1,623,714	1,397,550	1,370,667
Assumed from acquisition	252,399	2,039
Vested	(1,265,241)	(1,059,469)	(313,136)
Canceled	(176,763)	(43,539)	(31,364)
Outstanding and Unvested Ending Balance	2,350,386	1,916,277	1,619,696
Weighted- Average Grant Price
Outstanding and Unvested Beginning Balance	$ 17.14	$ 22.21	$ 26.75
Granted	$ 20.88	$ 14.99	$ 20.70
Vested	$ 17.98	$ 22.09	$ 24.58
Assumed from acquisition	$ 19.90	$ 16.95
Canceled	$ 18.82	$ 16.37	$ 18.49
Outstanding and Unvested Ending Balance	$ 19.44	$ 17.14	$ 22.21

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Assumed in Period

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Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other than Options, Assumed in Period, Weighted Average Grant Date Fair Value

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Share based Compensation Arrangement by Share based Payment Award, Equity Instruments Other than Options, Weighted Average Grant Date Fair Value [Abstract]

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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- Definition

The weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect during the reporting period as a result of the occurrence of a terminating event specified in the contractual agreement of the plan.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

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-Topic 718

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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