Stock-Based Compensation (Tables)

3 Months Ended

Nov. 29, 2014

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Summary Of Stock Options

	Options	Weighted-Average Exercise Price per Share		Weighted-Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding on August 30, 2014	1,186	$	68.24
Granted	421		83.02
Exercised	(100)		63.76
Canceled/Forfeited	—		—
Outstanding on November 29, 2014	1,507	$	72.67	5.16	$	11,258
Exercisable on November 29, 2014	619	$	63.11	3.86	$	9,423

Fair Value Of Options Granted Estimated Using Black-Scholes Option Pricing Model Assumptions

		Thirteen Weeks Ended
		November 29,			November 30,
		2014			2013
Expected life (in years)		3.9			3.9
Risk-free interest rate		1.09	%		0.93	%
Expected volatility		24.49	%		26.59	%
Expected dividend yield		1.70	%		1.70	%
Weighted-average grant-date fair value	$	14.06		$	14.98

Restricted Stock [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Non-Vested Share Activity

	Shares	Weighted-Average  Grant-Date Fair Value
Non-vested restricted share awards at August 30, 2014	428	$	68.67
Granted	115		83.02
Vested	(117)		58.30
Canceled/Forfeited	(2)		76.28
Non-vested restricted share awards at November 29, 2014	424	$	75.50

Restricted Stock Unit Agreement [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Non-Vested Unit Award Activity

	Shares		Weighted- Average Grant- Date Fair Value
Non-vested restricted stock unit awards at August 30, 2014	199	$	55.80
Granted	10		78.72
Vested	—		—
Canceled/Forfeited	—		—
Non-vested restricted stock unit awards at November 29, 2014	209	$	56.85