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Revenue (Schedule Of Disaggregation Of Revenue) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 03, 2022 | Aug. 28, 2021 | Aug. 29, 2020
Disaggregation of Revenue [Line Items] |  |  |
Net sales | $ 3,691,893 | $ 3,243,224 | $ 3,192,399
Net Sales [Member] | Customer Concentration Risk [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Concentration risk, percentage | 100.00% | 100.00% |
Net Sales [Member] | Geographic Concentration Risk [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | $ 3,691,893 | $ 3,243,224 |
Concentration risk, percentage | 100.00% | 100.00% |
Manufacturing Heavy [Member] | Net Sales [Member] | Customer Concentration Risk [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Concentration risk, percentage | 49.00% | 48.00% |
Manufacturing Light [Member] | Net Sales [Member] | Customer Concentration Risk [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Concentration risk, percentage | 21.00% | 20.00% |
Retail/Wholesale [Member] | Net Sales [Member] | Customer Concentration Risk [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Concentration risk, percentage | 7.00% | 7.00% |
Government [Member] | Net Sales [Member] | Customer Concentration Risk [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Concentration risk, percentage | 8.00% | 9.00% |
Commercial Services [Member] | Net Sales [Member] | Customer Concentration Risk [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Concentration risk, percentage | 4.00% | 4.00% |
Other Customers [Member] | Net Sales [Member] | Customer Concentration Risk [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Concentration risk, percentage | 11.00% | 12.00% |
US [Member] | Net Sales [Member] | Geographic Concentration Risk [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | $ 3,501,290 | $ 3,049,543 |
Concentration risk, percentage | 95.00% | 94.00% |
Mexico [Member] | Net Sales [Member] | Geographic Concentration Risk [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | $ 83,626 | $ 91,917 |
Concentration risk, percentage | 2.00% | 3.00% |
Canada [Member] | Net Sales [Member] | Geographic Concentration Risk [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | $ 51,672 | $ 46,920 |
Concentration risk, percentage | 2.00% | 1.00% |
North America [Member] | Net Sales [Member] | Geographic Concentration Risk [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | $ 3,636,588 | $ 3,188,380 |
Concentration risk, percentage | 99.00% | 98.00% |
Other foreign countries [Member] | Net Sales [Member] | Geographic Concentration Risk [Member] |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Net sales | $ 55,305 | $ 54,844 |
Concentration risk, percentage | 1.00% | 2.00% |

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