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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Fair Values of the Company's Derivative Instruments (Details) - USD ($)
$ in Millions
Sep. 30, 2023
Sep. 30, 2022
Fair value, inputs, level 2    
Derivatives, Fair Value [Line Items]    
Total derivatives instruments $ 40.2 $ 37.2
Designated as Hedging Instruments | Fair value, inputs, level 2    
Derivatives, Fair Value [Line Items]    
Total derivatives instruments 33.7 33.4
Designated as Hedging Instruments | Interest rate swap agreements | Other assets    
Derivatives, Fair Value [Line Items]    
Derivative asset 14.7 18.2
Designated as Hedging Instruments | Interest rate swap agreements | Prepaid and other current assets    
Derivatives, Fair Value [Line Items]    
Derivative asset 16.7 12.8
Designated as Hedging Instruments | Commodity hedging instruments | Prepaid and other current assets | Fair value, inputs, level 2    
Derivatives, Fair Value [Line Items]    
Derivative asset 2.3 2.4
Derivatives not designated as Hedging Instruments | Fair value, inputs, level 2    
Derivatives, Fair Value [Line Items]    
Total derivatives instruments 6.5 3.8
Derivatives not designated as Hedging Instruments | Commodity hedging instruments | Prepaid and other current assets    
Derivatives, Fair Value [Line Items]    
Derivative asset 0.9 0.4
Derivatives not designated as Hedging Instruments | Currency forward contracts | Prepaid and other current assets | Fair value, inputs, level 2    
Derivatives, Fair Value [Line Items]    
Derivative asset $ 5.6 $ 3.4