Stock Option Activity (Detail) (USD $)	12 Months Ended
Aug. 25, 2012
Share Based Compensation Arrangement By Share Based Payment Award Options [Abstract]
Outstanding, beginning balance, Number of Shares	2,630,194
Granted, Number of Shares	407,130
Exercised, Number of Shares	(712,524)
Canceled, Number of Shares	(62,121)
Outstanding, ending balance, Number of Shares	2,262,679
Exercisable, Number of Shares	1,236,652
Expected to vest, Number of Shares	1,026,027
Available for future grants, Number of Shares	2,420,546
Weighted Average Exercise Price
Outstanding, beginning balance, Weighted Average Exercise Price	$ 132.32
Granted, Weighted Average Exercise Price	$ 330.12
Exercised, Weighted Average Exercise Price	$ 107.84
Canceled, Weighted Average Exercise Price	$ 227.53
Outstanding, ending balance, Weighted Average Exercise Price	$ 173.01
Exercisable, Weighted Average Exercise Price	$ 120.55
Expected to vest, Weighted Average Exercise Price	$ 236.25
Weighted-Average Remaining Contractual Term (in years)
Outstanding , Weighted Average Remaining Contractual Term	6 years 4 months 24 days
Exercisable, Weighted Average Remaining Contractual Term	5 years 11 days
Expected to vest, Weighted Average Remaining Contractual Term	8 years 18 days
Aggregate Intrinsic Value (in thousands)
Outstanding, Aggregate Intrinsic Value	$ 435,062
Exercisable, Aggregate Intrinsic Value	302,402
Expected to vest, Aggregate Intrinsic Value	$ 118,969

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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Net number of share options (or share units) granted during the period.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of fully vested and expected to vest options that are exercisable.

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As of the balance sheet date, the weighted-average exercise price (at which grantees can acquire the shares reserved for issuance) for exercisable stock options that are fully vested or expected to vest.

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