Stock-Based Compensation (Tables)

6 Months Ended

Mar. 04, 2017

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

Schedule Of Stock-Based Compensation Expense

	Thirteen Weeks Ended				Twenty-Six Weeks Ended
	March 4,		February 27,		March 4,		February 27,
	2017		2016		2017		2016
Stock options	$	1,075	$	1,066	$	2,187	$	2,252
Restricted share awards		1,012		1,473		2,334		3,199
Restricted stock units		1,233		773		2,275		1,412
Associate Stock Purchase Plan		67		66		129		136
Total		3,387		3,378		6,925		6,999
Deferred income tax benefit		(1,288)		(1,284)		(2,632)		(2,660)
Stock-based compensation expense, net	$	2,099	$	2,094	$	4,293	$	4,339

Schedule Of Option Grant Fair Value Assumptions

	Twenty-Six Weeks Ended
	March 4,		February 27,
	2017		2016
Expected life (in years)	4.1		3.9
Risk-free interest rate	1.16	%	1.09	%
Expected volatility	20.50	%	21.82	%
Expected dividend yield	2.40	%	2.40	%
Weighted-average grant-date fair value	$9.29		$8.03

Summary Of Stock Option Activity

	Options	Weighted-Average Exercise Price per Share		Weighted-Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding on September 3, 2016	1,645	$	69.86
Granted	537		71.33
Exercised	(329)		67.24
Canceled/Forfeited	(30)		70.91
Outstanding on March 4, 2017	1,823	$	70.75	5.0	$	61,232
Exercisable on March 4, 2017	655	$	73.54	3.6	$	20,176

Restricted Share Awards [Member]

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

Summary Of Non-Vested Restricted Share Award Activity

	Shares	Weighted-Average  Grant-Date Fair Value
Non-vested restricted share awards at September 3, 2016	265	$	78.58
Granted	—		—
Vested	(96)		75.28
Canceled/Forfeited	(4)		80.99
Non-vested restricted share awards at March 4, 2017	165	$	80.41

Restricted Stock Units [Member]

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

Summary Of Non-Vested Restricted Stock Unit Award Activity

	Shares	Weighted-Average  Grant-Date Fair Value
Non-vested restricted stock unit awards at September 3, 2016	198	$	58.98
Granted	174		73.32
Vested	(45)		59.05
Canceled/Forfeited	(7)		64.83
Non-vested restricted stock unit awards at March 4, 2017	320	$	66.63