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DERIVATIVES AND RISK MANAGEMENT (Commodity Contract Commitments) (Details) | 9 Months Ended
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May 31, 2019 t
Aluminum | Long |
Derivative [Line Items] |
Commodity contract commitments | 4,500
Aluminum | Short |
Derivative [Line Items] |
Commodity contract commitments | 2,350
Copper | Long |
Derivative [Line Items] |
Commodity contract commitments | 669
Copper | Short |
Derivative [Line Items] |
Commodity contract commitments | 5,341

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