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Business And Summary Of Significant Accounting Policies (Components Of Other Intangible Assets) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 03, 2022
Aug. 28, 2021
Intangible Assets By Major Class [Line Items]    
Gross Carrying Amount, Total $ 261,784 $ 241,813
Accumulated Amortization (147,456) (139,959)
Customer Relationships [Member]    
Intangible Assets By Major Class [Line Items]    
Gross Carrying Amount 243,269 220,669
Accumulated Amortization $ (144,300) (133,361)
Customer Relationships [Member] | Minimum [Member]    
Intangible Assets By Major Class [Line Items]    
Weighted Average Useful Life (in years) 5 years  
Customer Relationships [Member] | Maximum [Member]    
Intangible Assets By Major Class [Line Items]    
Weighted Average Useful Life (in years) 18 years  
Non-Compete Agreements [Member]    
Intangible Assets By Major Class [Line Items]    
Weighted Average Useful Life (in years) 3 years  
Gross Carrying Amount $ 966 766
Accumulated Amortization (280) (21)
Trademark [Member]    
Intangible Assets By Major Class [Line Items]    
Gross Carrying Amount 4,746 7,567
Accumulated Amortization $ (2,876) (6,577)
Trademark [Member] | Minimum [Member]    
Intangible Assets By Major Class [Line Items]    
Weighted Average Useful Life (in years) 1 year  
Trademark [Member] | Maximum [Member]    
Intangible Assets By Major Class [Line Items]    
Weighted Average Useful Life (in years) 5 years  
Trademarks [Member]    
Intangible Assets By Major Class [Line Items]    
Gross Carrying Amount, Indefinite $ 12,803 $ 12,811