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Revenue (Schedule Of Disaggregation Of Revenue) (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Feb. 29, 2020 | Mar. 02, 2019 | Feb. 29, 2020 | Mar. 02, 2019
Disaggregation of Revenue [Line Items] |  |  |  |  |
Net sales |  | $ 786,094,000 | $ 823,004,000 | $ 1,609,695,000 | $ 1,654,601,000
Net Sales [Member] | Customer Concentration Risk [Member] |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Concentration risk, percentage |  | 100.00% | 100.00% | 100.00% | 100.00%
Net Sales [Member] | Geographic Concentration Risk [Member] |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Net sales |  | $ 786,094,000 | $ 823,004,000 | $ 1,609,695 | $ 1,654,601
Concentration risk, percentage |  | 100.00% | 100.00% | 100.00% | 100.00%
Manufacturing Heavy [Member] | Net Sales [Member] | Customer Concentration Risk [Member] |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Concentration risk, percentage |  | 47.00% | 49.00% | 47.00% | 49.00%
Manufacturing Light [Member] | Net Sales [Member] | Customer Concentration Risk [Member] |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Concentration risk, percentage |  | 23.00% | 22.00% | 23.00% | 22.00%
Government [Member] | Net Sales [Member] | Customer Concentration Risk [Member] |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Concentration risk, percentage |  | 7.00% | 7.00% | 7.00% | 8.00%
Retail/Wholesale [Member] | Net Sales [Member] | Customer Concentration Risk [Member] |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Concentration risk, percentage |  | 6.00% | 6.00% | 6.00% | 5.00%
Commercial Services [Member] | Net Sales [Member] | Customer Concentration Risk [Member] |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Concentration risk, percentage |  | 5.00% | 5.00% | 5.00% | 4.00%
Other Customers [Member] | Net Sales [Member] | Customer Concentration Risk [Member] |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Concentration risk, percentage | [1] | 12.00% | 11.00% | 12.00% | 12.00%
United States [Member] | Net Sales [Member] | Geographic Concentration Risk [Member] |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Net sales |  | $ 752,300,000 | $ 796,995,000 | $ 1,540,663 | $ 1,603,070
Concentration risk, percentage |  | 96.00% | 97.00% | 96.00% | 97.00%
UK [Member] | Net Sales [Member] | Geographic Concentration Risk [Member] |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Net sales |  | $ 13,274,000 | $ 13,769,000 | $ 27,356 | $ 28,974
Concentration risk, percentage |  | 2.00% | 2.00% | 2.00% | 2.00%
Canada [Member] | Net Sales [Member] | Geographic Concentration Risk [Member] |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Net sales |  | $ 10,147,000 | $ 9,299,000 | $ 21,258 | $ 19,616
Concentration risk, percentage |  | 1.00% | 1.00% | 1.00% | 1.00%
Mexico [Member] | Net Sales [Member] | Geographic Concentration Risk [Member] |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Net sales |  | $ 10,373,000 | $ 2,941,000 | $ 20,418 | $ 2,941
Concentration risk, percentage |  | 1.00% |  | 1.00% |
Mexico [Member] | Net Sales [Member] | Geographic Concentration Risk [Member] | Maximum [Member] |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Concentration risk, percentage |  |  | 1.00% |  | 1.00%
[1] | The other category primarily includes individual customer and small business net sales not assigned to a specific industry classification.

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