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Acquisition of Jamalco - Narrative (Details) - USD ($) |  | 12 Months Ended
--- | --- | ---
May 02, 2023 | Dec. 31, 2023
General Alumina Holdings Limited |  |
Business Acquisition [Line Items] |  |
Payments to acquire business | $ 1.00 |
Jamalco |  |
Business Acquisition [Line Items] |  |
Revenue since acquisition |  | $ 150,300,000
Loss of acquiree since acquisition |  | 41,100,000
Transaction costs |  | $ 1,400,000
Jamalco |  |
Business Acquisition [Line Items] |  |
Ownership percentage |  | 55.00%
Jamalco | General Alumina Holdings Limited |  |
Business Acquisition [Line Items] |  |
Ownership percentage | 55.00% |
Jamalco | Clarendon Alumina Production Limited |  |
Business Acquisition [Line Items] |  |
Glencore beneficial ownership | 45.00% |

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