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Revenue Recognition - Disaggregated Revenues (Details) - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2022	Aug. 31, 2021	Aug. 31, 2020
Disaggregation of Revenue [Line Items]
Net sales	$ 4,006.1	$ 3,461.0	$ 3,326.3
Operating Segments | ABL
Disaggregation of Revenue [Line Items]
Net sales	3,810.1	3,287.3	3,180.9
Operating Segments | ISG
Disaggregation of Revenue [Line Items]
Net sales	216.1	190.0	157.0
Eliminations
Disaggregation of Revenue [Line Items]
Net sales	(20.1)	(16.3)	(11.6)
Independent sales network | Operating Segments | ABL
Disaggregation of Revenue [Line Items]
Net sales	2,714.1	2,400.5	2,284.3
Direct sales network | Operating Segments | ABL
Disaggregation of Revenue [Line Items]
Net sales	384.2	358.1	329.0
Retail sales | Operating Segments | ABL
Disaggregation of Revenue [Line Items]
Net sales	178.3	181.5	218.3
Corporate accounts | Operating Segments | ABL
Disaggregation of Revenue [Line Items]
Net sales	222.7	168.7	191.8
Other | Operating Segments | ABL
Disaggregation of Revenue [Line Items]
Net sales	$ 310.8	$ 178.5	$ 157.5

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