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Financial - risk management objectives and policies - Additional information (Details) - $ / £ | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure Of Financial risk management [Line Items] |  |  |
Decrease in exchange rate basis points | 10.00% | 10.00% | 10.00%
Sociedad Minera Cerro Verde S.A.A. | Credit risk [member] |  |  |
Disclosure Of Financial risk management [Line Items] |  |  |
Credit risk collection period | 30 days |  |
Sociedad Minera Cerro Verde S.A.A. | Minimum |  |  |
Disclosure Of Financial risk management [Line Items] |  |  |
10% increase in copper price | 4.235 | 4.178 | 4.765
10% decrease in copper price | 3.465 | 3.418 | 3.899
Sociedad Minera Cerro Verde S.A.A. | Maximum |  |  |
Disclosure Of Financial risk management [Line Items] |  |  |
10% increase in copper price | 4.287 | 4.179 | 4.879
10% decrease in copper price | 3.507 | 3.419 | 3.992

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