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Commitments And Contingencies (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 02, 2017 | Sep. 03, 2016 | Aug. 29, 2015
Commitments And Contingencies [Line Items] |  |  |
Rental expense, operating leases | $ 12,541 | $ 13,428 | $ 14,504
Maximum [Member] |  |  |
Commitments And Contingencies [Line Items] |  |  |
Lease expiration date | 2027 |  |
Related Party Commitments [Member] |  |  |
Commitments And Contingencies [Line Items] |  |  |
Rental expense, operating leases |  | $ 1,044 | $ 2,401
Equipment And Automobile [Member] |  |  |
Commitments And Contingencies [Line Items] |  |  |
Lease expiration date | 2021 |  |

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- Definition Commitments And Contingencies [Line Items] + References No definition available. + Details
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- Definition The date upon which a lease or a group of leases is set to expire. + References No definition available. + Details
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717 + Details
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- Details
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