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DERIVATIVES (Commodity Contract Commitments) (Details)
MWh in Thousands
3 Months Ended
Nov. 30, 2024
MMBTU
MWh
t
Aluminum | Long  
Derivative [Line Items]  
Commodity contract commitments 2,775
Aluminum | Short  
Derivative [Line Items]  
Commodity contract commitments 1,275
Copper | Long  
Derivative [Line Items]  
Commodity contract commitments 181
Copper | Short  
Derivative [Line Items]  
Commodity contract commitments 9,741
Electricity | Long  
Derivative [Line Items]  
Commodity contract commitment, energy | MWh 3,056
Natural Gas | Long  
Derivative [Line Items]  
Commodity contract commitment, energy | MMBTU 5,070,750