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Recent Accounting Pronouncements - Narrative (Details) $ in Millions | 3 Months Ended
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Nov. 25, 2017 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Discrete tax benefits related to adoption new policy | $ 1.6
Accounting Standards Update 2016-09 |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Stock based compensation, increase | 0.1
Retained Earnings | Accounting Standards Update 2016-09 |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Cumulative-effect adjustment, increase (decrease) | (0.7)
Additional Paid-in Capital | Accounting Standards Update 2016-09 |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |
Cumulative-effect adjustment, increase (decrease) | $ 0.7

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