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FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) - USD ($)
$ in Millions
Jun. 30, 2024
Sep. 30, 2023
Fair Value    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative Assets $ 1.9 $ 3.3
Derivative Liabilities 4.1 9.0
Debt 554.5 1,418.6
Carrying Amount    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative Assets 1.9 3.3
Derivative Liabilities 4.1 9.0
Debt 560.5 1,555.5
Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative Assets 0.0 0.0
Derivative Liabilities 0.0 0.0
Debt 0.0 0.0
Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative Assets 1.9 3.3
Derivative Liabilities 4.1 9.0
Debt 554.5 1,418.6
Level 3    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Derivative Assets 0.0 0.0
Derivative Liabilities 0.0 0.0
Debt $ 0.0 $ 0.0