Stock-Based Compensation (Tables)

6 Months Ended

Mar. 03, 2018

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 3,		March 4,		March 3,		March 4,
	2018		2017		2018		2017
Stock options	$	1,128	$	1,075	$	2,322	$	2,187
Restricted share awards		670		1,012		1,572		2,334
Restricted stock units		1,821		1,233		3,575		2,275
Associate Stock Purchase Plan		76		67		120		129
Total		3,695		3,387		7,589		6,925
Deferred income tax benefit		(1,083)		(1,288)		(2,224)		(2,632)
Stock-based compensation expense, net	$	2,612	$	2,099	$	5,365	$	4,293

Schedule Of Option Grant Fair Value Assumptions

	Twenty-Six Weeks Ended
	March 3,		March 4,
	2018		2017
Expected life (in years)	4.0		4.1
Risk-free interest rate	1.87	%	1.16	%
Expected volatility	22.13	%	20.50	%
Expected dividend yield	2.30	%	2.40	%
Weighted-average grant-date fair value	$12.25		$9.29

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 2, 2017	1,743	$	70.88
Granted	436		79.60
Exercised	(232)		70.80
Canceled/Forfeited	(31)		72.68
Outstanding on March 3, 2018	1,916	$	72.85	4.8	$	26,947
Exercisable on March 3, 2018	764	$	73.60	3.6	$	10,167

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 2, 2017	160	$	80.49
Granted	—		—
Vested	(88)		79.36
Canceled/Forfeited	(3)		82.27
Non-vested restricted share awards at March 3, 2018	69	$	81.75

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 2, 2017	313	$	66.66
Granted	166		81.00
Vested	(78)		66.60
Canceled/Forfeited	(13)		71.56
Non-vested restricted stock unit awards at March 3, 2018	388	$	72.65