Share-Based Payments (Tables)

12 Months Ended

Aug. 31, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Weighted Average for Key Assumptions Used in Determining Fair Value of Options Granted and Related Share-Based Compensation Expense

The following table presents the weighted average for key assumptions used in determining the fair value of options granted and the related share-based compensation expense:


	Year Ended
	August 31, 2013			August 25, 2012			August 27, 2011
Expected price volatility		29	%		28	%		31	%
Risk-free interest rates		0.5	%		0.7	%		1.0	%
Weighted average expected lives (in years)		5.2			5.4			4.3
Forfeiture rate		10	%		10	%		10	%
Dividend yield		0	%		0	%		0	%

Stock Option Activity

The following table summarizes information about stock option activity for the year ended August 31, 2013:


	Number of Shares			Weighted Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value (in thousands)

Outstanding – August 25, 2012		2,262,679		$	173.01
Granted		364,160			371.76
Exercised		(773,942	)		128.68
Cancelled		(56,909	)		282.28

Outstanding – August 31, 2013		1,795,988			228.95		6.56	$	343,015

Exercisable		899,079			152.35		5.05		240,584

Expected to vest		896,909			305.74		8.07		92,187

Available for future grants		2,085,615

- Definition

Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate.

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