ACQUISITIONS - Schedule of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Sep. 30, 2023	Sep. 30, 2022	Feb. 18, 2022	Sep. 30, 2021
Business Acquisition [Line Items]
Goodwill	$ 854.7	$ 953.1		$ 867.2
Tristar
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents			$ 0.3
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables			45.7
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Assets, Other Receivables			0.4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory			102.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets			4.4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment			0.4
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Operating Lease Assets			23.3
Goodwill			111.1
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill			95.0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets, Other			4.8
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable And Other Current Liabilities			(52.5)
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Liabilities, Accrued Wages And Salaries			(0.6)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other			(20.8)
Business Combination, Recognized Identifiable Asset Acquired and Liability Assumed, Lease Obligation			(11.1)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net, Total			$ 302.4