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Basis of preparation and material accounting policies (Details) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Disclosure of detailed information about property, plant and equipment [line items] |  |
Considerations to minimum cash guarantee, period | 4 years |
Ontario Teachers' Pension Plan | New Afton |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Free cash flow interest | 46.00% |
Plant and machinery | Bottom of range |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Useful life measured as period of time, property, plant and equipment | 3 years |
Plant and machinery | Top of range |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Useful life measured as period of time, property, plant and equipment | 9 years | 8 years
Mobile equipment | Bottom of range |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Useful life measured as period of time, property, plant and equipment | 5 years |
Mobile equipment | Top of range |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Useful life measured as period of time, property, plant and equipment | 6 years |
Minera San Xavier S.A. de C.V. |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |
Proportion of ownership interest in subsidiary | 100.00% | 100.00%

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