v3.26.1
FAIR VALUE - HIERARCHY (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Sep. 30, 2025
Assets:    
Other $ 2,404 $ 2,589
Total assets at fair value 113,660 17,427
Liabilities:    
Total liabilities at fair value $ 13,384 11,903
Derivative Asset, Statement of Financial Position [Extensible Enumeration] Assets  
Derivative Liability, Statement of Financial Position [Extensible Enumeration] Liabilities and Equity  
Money market funds    
Assets:    
Assets $ 100,005 5
Physical commodity contracts    
Assets:    
Assets 4,129 5,051
Liabilities:    
Liabilities 9,224 9,811
Financial commodity contracts    
Assets:    
Assets 7,122 9,782
Liabilities:    
Liabilities 4,160 2,092
Quoted Prices in Active Markets for Identical Assets, (Level 1)    
Assets:    
Other 2,404 2,589
Total assets at fair value 109,531 12,376
Liabilities:    
Total liabilities at fair value 4,160 2,092
Quoted Prices in Active Markets for Identical Assets, (Level 1) | Money market funds    
Assets:    
Assets 100,005 5
Quoted Prices in Active Markets for Identical Assets, (Level 1) | Physical commodity contracts    
Assets:    
Assets 0 0
Liabilities:    
Liabilities 0 0
Quoted Prices in Active Markets for Identical Assets, (Level 1) | Financial commodity contracts    
Assets:    
Assets 7,122 9,782
Liabilities:    
Liabilities 4,160 2,092
Significant Other Observable Inputs (Level 2)    
Assets:    
Other 0 0
Total assets at fair value 4,129 5,051
Liabilities:    
Total liabilities at fair value 9,224 9,811
Significant Other Observable Inputs (Level 2) | Money market funds    
Assets:    
Assets 0 0
Significant Other Observable Inputs (Level 2) | Physical commodity contracts    
Assets:    
Assets 4,129 5,051
Liabilities:    
Liabilities 9,224 9,811
Significant Other Observable Inputs (Level 2) | Financial commodity contracts    
Assets:    
Assets 0 0
Liabilities:    
Liabilities 0 0
Significant Unobservable Inputs (Level 3)    
Assets:    
Other 0 0
Total assets at fair value 0 0
Liabilities:    
Total liabilities at fair value 0 0
Significant Unobservable Inputs (Level 3) | Money market funds    
Assets:    
Assets 0 0
Significant Unobservable Inputs (Level 3) | Physical commodity contracts    
Assets:    
Assets 0 0
Liabilities:    
Liabilities 0 0
Significant Unobservable Inputs (Level 3) | Financial commodity contracts    
Assets:    
Assets 0 0
Liabilities:    
Liabilities $ 0 $ 0