SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Shipping and handling costs	$ 272.6	$ 274.2	$ 216.3
Advertising costs	$ 59.1	64.1	54.0
Percentage greater than the largest amount of recognized income tax positions which likely of being realized	50.00%
Supplier finance program, outstanding payment obligations	$ 17.9
Supplier Finance Program, Obligation, Statement of Financial Position [Extensible Enumeration]	Accounts payable
Supplier finance program, settlement	$ 91.0
Exchange losses on foreign currency transactions	$ 5.1	$ 14.5	$ 1.5
Minimum
Revenues from External Customers and Long-Lived Assets [Line Items]
Extended warranty, term	1 year
Maximum
Revenues from External Customers and Long-Lived Assets [Line Items]
Extended warranty, term	7 years