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Revenue Recognition - Disaggregated Revenues (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Aug. 31, 2019	May 31, 2019	Feb. 28, 2019	Nov. 30, 2018	Aug. 31, 2018	May 31, 2018	Feb. 28, 2018	Nov. 30, 2017	Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2017
Disaggregation of Revenue [Line Items]
Net sales	$ 938.1	$ 947.6	$ 854.4	$ 932.6	$ 1,061.2	$ 944.0	$ 832.1	$ 842.8	$ 3,672.7	$ 3,680.1	$ 3,505.1
Independent sales network
Disaggregation of Revenue [Line Items]
Net sales									2,516.4
Direct sales network
Disaggregation of Revenue [Line Items]
Net sales									381.1
Retail sales
Disaggregation of Revenue [Line Items]
Net sales									270.2
Corporate accounts
Disaggregation of Revenue [Line Items]
Net sales									318.0
Other
Disaggregation of Revenue [Line Items]
Net sales									$ 187.0

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+ References

No definition available.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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