Other operating expenses - Other operating expenses (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Disclosure of operating segments [line items] | |||
| Impairment of assets | $ 0 | ||
| Sociedad Minera Cerro Verde S.A.A. | |||
| Disclosure of operating segments [line items] | |||
| SAP S/4HANA deployment | 28,199 | ||
| Exploration expenses | 15,916 | $ 11,822 | $ 9,179 |
| Optimization and prefeasibility/feasibility studies | 14,586 | 6,585 | 1,401 |
| Net cost of asset retirements and/or disposals | 3,371 | 370 | 138 |
| Royalty non-income tax (b) | 769 | 2,069 | 4,488 |
| Miscellaneous penalties | 558 | ||
| Tax contingencies | 108 | 2,823 | 258 |
| Impairment of assets | 21 | 19 | 3,546 |
| Cancellation of Projects | 2,164 | ||
| Penalties of income tax payments on account (a) | 0 | 0 | 70,045 |
| Other operating expense | $ 63,528 | $ 23,688 | $ 91,219 |