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SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Accounting Policies [Abstract]
Restricted cash	$ 3.6	$ 1.6
Shipping and handling costs	248.6	266.9	$ 272.6
Advertising costs	87.7	91.7	59.1
Research and development costs	$ 23.2	28.1	22.5
Percentage greater than the largest amount of recognized income tax positions which likely of being realized	50.00%
Exchange losses on foreign currency transactions	$ 11.0	$ 7.5	$ 5.1

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Percentage Greater Than The Largest Amount Of Recognized Income Tax Positions Which Likely Of Being Realized

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Shipping And Handling Costs Include Incurred Costs With Third Party Carriers

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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Amount, before tax, of realized gain (loss) from foreign currency transaction.

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Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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