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Basis Of Presentation (Schedule Of Adoption Of New Accounting Standards) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended
Dec. 02, 2017
Dec. 03, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Provision for income taxes $ 36,211 $ 33,257
Net income $ 59,585 $ 54,288
Basic $ 1.06 $ 0.96
Diluted $ 1.05 $ 0.96
Basic 56,287 56,381
Diluted 56,504 56,608
Accounting Standards Update 2016-09 [Member]    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Provision for income taxes   $ 33,257
Net income   $ 54,288
Basic   $ 0.96
Diluted   $ 0.96
Basic   56,381
Diluted   56,608
Scenario, Previously Reported [Member] | Accounting Standards Update 2016-09 [Member]    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Provision for income taxes   $ 33,442
Net income   $ 54,103
Basic   $ 0.96
Diluted   $ 0.95
Basic   56,381
Diluted   56,572