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Business And Summary Of Significant Accounting Policies (Components Of Other Intangible Assets) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Aug. 28, 2021 | Aug. 29, 2020
Intangible Assets By Major Class [Line Items] |  |
Gross Carrying Amount, Total | $ 241,813 | $ 234,674
Accumulated Amortization | (139,959) | (129,801)
Customer Relationships [Member] |  |
Intangible Assets By Major Class [Line Items] |  |
Gross Carrying Amount | 220,669 | 214,460
Accumulated Amortization | $ (133,361) | (123,958)
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 | $ 766 |
Accumulated Amortization | (21) |
Trademark [Member] |  |
Intangible Assets By Major Class [Line Items] |  |
Gross Carrying Amount | 7,567 | 7,403
Accumulated Amortization | $ (6,577) | (5,843)
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 | $ 12,811 | 12,811
Accumulated Amortization |  |

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