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Revenue Recognition - Additional Information (Detail) - USD ($) $ in Thousands | Aug. 26, 2018 | Aug. 25, 2018
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Revenue From Contract With Customer [Line Items] |  |
An increase of retained deficit |  | $ 6,773
Accounting Standards Update 2014-09 [Member] |  |
Revenue From Contract With Customer [Line Items] |  |
An increase of retained deficit | $ 6,800 |

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