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COMMITMENTS AND CONTINGENCIES - COMMITMENTS AND CONTINGENCIES (Details) $ in Millions | Dec. 31, 2022 USD ($) t | Dec. 31, 2021 t
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Capital commitments: |  |
Commitments outstanding for the purchase of property, plant and equipment | $ | $ 414.3 |
Solar Industry [Member] |  |
Capital commitments: |  |
Total annual capacity |  | 200,000
Solar Industry [Member] | Investment In Project, Phase One [Member] |  |
Capital commitments: |  |
Total annual capacity | 100,000 |
Solar Industry [Member] | Investment In Project, Phase Two [Member] |  |
Capital commitments: |  |
Total annual capacity | 100,000 |
Semiconductor Industry [Member] |  |
Capital commitments: |  |
Total annual capacity |  | 21,000
Semiconductor Industry [Member] | Investment In Project, Phase One [Member] |  |
Capital commitments: |  |
Estimated investment in projects | $ | $ 8,550.0 |
Total annual capacity | 1,000 |
Silicone Projects [Member] |  |
Capital commitments: |  |
Total annual capacity |  | 200,000
Silicon Metal [Member] |  |
Capital commitments: |  |
Total annual capacity |  | 300,000

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