Stock-Based Compensation (Summary Of Stock Options) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	6 Months Ended
Mar. 01, 2014
Stock-Based Compensation [Abstract]
Outstanding on August 31, 2013, Options	1,224
Granted, Options	399
Exercised, Options	(255)
Canceled, Options	(17)
Outstanding on March 1, 2014, Options	1,351
Exercisable on March 1, 2014, Options	486
Outstanding on August 31, 2013, Weighted-Average Exercise Price per Share	$ 58.30
Granted, Weighted-Average Exercise Price per Share	$ 81.76
Exercised, Weighted-Average Exercise Price per Share	$ 47.85
Canceled, Weighted-Average Exercise Price per Share	$ 72.46
Outstanding on March 1, 2014, Weighted-Average Exercise Price per Share	$ 67.02
Exercisable on March 1, 2014, Weighted-Average Exercise Price per Share	$ 55.77
Outstanding on March 1, 2014, Weighted-Average Remaining Contractual Term	5 years 3 months 15 days
Exercisable on March 1, 2014, Weighted-Average Remaining Contractual Term	3 years 11 months 27 days
Outstanding on March 1, 2014, Aggregate Intrinsic Value	$ 15,204
Exercisable on March 1, 2014, Aggregate Intrinsic Value	$ 10,242

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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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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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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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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Number of share options (or share units) exercised during the current period.

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