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Revenue Recognition (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
May 31, 2019 | May 31, 2018 | May 31, 2019 | May 31, 2018 | Sep. 01, 2018
Disaggregation of Revenue [Line Items] |  |  |  |  |
Right of return assets | $ 15.3 |  | $ 15.3 |  | $ 16.4
Timing of revenue recognition |  |  | Non-current deferred revenues primarily consist of long-term service-type warranties, which are typically recognized ratably as revenue between five and ten years from the date of sale, and are included within Other long-term liabilities on the Consolidated Balance Sheets |  |
Revenue recognized from beginning balances of contract liabilities |  |  | $ 3.7 |  |
Revenue | Concentration | Short-term Contract with Customers |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues generated from short-term contracts (percent) | 95.00% | 95.00% | 95.00% | 95.00% |
Revenue | Concentration | Contracts With Multiple Performance Obligations |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Revenues generated from short-term contracts (percent) | 5.00% | 5.00% | 5.00% | 5.00% |
Rights of return, cash discounts and other miscellaneous credits |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Refund liabilities | $ 38.8 |  | $ 38.8 |  | 41.2
Marketing and trade-promotion programs |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |
Refund liabilities | $ 31.8 |  | $ 31.8 |  | $ 43.9

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