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FAIR VALUE OF FINANCIAL INSTRUMENTS - Narrative (Details) - Common Stock - USD ($) shares in Millions, $ in Millions		12 Months Ended
	Jan. 28, 2019	Sep. 30, 2021	Sep. 30, 2020
Global Auto Care
Fair Value Of Financial Instruments [Line Items]
Stock consideration (in shares)	5.3
Stock consideration, value	$ 242.1
Energizer
Fair Value Of Financial Instruments [Line Items]
Stock consideration (in shares)			3.6
Stock consideration, including discontinued operations (in shares)		1.7
Cash proceeds, stock consideration		$ 73.1	$ 147.1
Shares of common stock held (in shares)		0.0

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