v3.26.1
COMMITMENTS AND CONTINGENCIES (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2023
Loss Contingencies [Line Items]      
Purchase obligation, purchases during period $ 81,911 $ 76,629 $ 110,175
Purchase obligation, due in next twelve months 58,797    
Purchase obligation, to be paid, after year five $ 0    
Peekskill, New York      
Loss Contingencies [Line Items]      
Site contingency, ownership period 3 years    
Memphis, TN      
Loss Contingencies [Line Items]      
Site contingency, ownership period 50 years