Business And Summary Of Significant Accounting Policies (Change In The Carrying Amount Of Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 01, 2018		Sep. 02, 2017
Business Acquisition [Line Items]
Goodwill, Beginning Balance	$ 633,728		$ 624,081
Acquisition	41,939	[1]	8,318	[2]
Foreign currency translation adjustment	(1,407)		1,329
Goodwill, Ending Balance	674,998		$ 633,728
DECO Tool Supply Co. [Member]
Business Acquisition [Line Items]
Post-closing working capital adjustment from acquisition	738
Goodwill, Ending Balance	41,939
All Integrated Solutions ("AIS") [Member]
Business Acquisition [Line Items]
Post-closing working capital adjustment from acquisition	1,210
Goodwill, Ending Balance	$ 41,939

[1] Acquired All Integrated Solutions ("AIS") in April 2018, including post-closing working capital adjustment of $1,155. See Note 4 "Business Combinations" for further discussion on these acquisitions.

[2] Acquired DECO Tool Supply Co. ("DECO") in July 2017.