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Accumulated Other Comprehensive Loss - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Aug. 26, 2017 | Aug. 27, 2016
Pension Liability [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Pension actuarial gain (loss) | $ 8,046 | $ (24,542)

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- Definition Amount after tax, before reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=84158357&loc=d3e1436-108581 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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