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FINANCIAL INSTRUMENTS - Commodity Price Risk Management (Details) | 12 Months Ended
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Dec. 31, 2022 $ / MMBTU tons | Dec. 31, 2021 $ / MMBTU tons
Commodity swap |  |
Derivative [Line Items] |  |
Notional quantity | tons | 4,839,000 | 1,209,753
Minimum |  |
Derivative [Line Items] |  |
Derivative, forward price | 49.50 | 23.25
Maximum |  |
Derivative [Line Items] |  |
Derivative, forward price | 51.20 | 28.00

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