Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended
Nov. 30, 2018	Sep. 01, 2018
Disaggregation of Revenue [Line Items]
Right of return assets	$ 16.2	$ 16.4
Revenue recognized from beginning balances of contract liabilities	$ 2.2
Revenue \| Concentration \| Short-term Contract with Customers
Disaggregation of Revenue [Line Items]
Revenues generated from short-term contracts (percent)	95.00%
Revenue \| Concentration \| Contracts With Multiple Performance Obligations
Disaggregation of Revenue [Line Items]
Revenues generated from short-term contracts (percent)	5.00%
Rights of return, cash discounts and other miscellaneous credits
Disaggregation of Revenue [Line Items]
Refund liabilities	$ 39.5	41.2
Marketing and trade-promotion programs
Disaggregation of Revenue [Line Items]
Refund liabilities	$ 51.4	$ 43.9

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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