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Other operating expenses - Other operating expenses (Details) - Sociedad Minera Cerro Verde S.A.A. - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of operating segments [line items]      
Royalty non-income tax (a) $ 9,238 $ 0 $ 10,780
Optimization and prefeasibility/feasibility studies (b) 8,905 5,929 8,429
Exploration expenses 4,973 170 217
Tax contingencies 1,078 1,903 704
Other expenses 18 508 1,208
Excess of salary limit in workers profit sharing (c) 0 0 17,146
Other operating expense $ 24,212 $ 8,510 $ 38,484