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RECEIVABLES AND CONCENTRATION OF CREDIT RISK (Details) - USD ($)
$ in Millions
9 Months Ended 12 Months Ended
Jun. 30, 2024
Sep. 30, 2023
Concentration Risk [Line Items]    
Allowance for uncollectible receivables $ 8.1 $ 7.7
Trade Receivables | Customer Concentration Risk | Three Customers    
Concentration Risk [Line Items]    
Concentration risk percentage 56.70%  
Trade Receivables | Customer Concentration Risk | Two Customers    
Concentration Risk [Line Items]    
Concentration risk percentage   39.80%