v3.26.1
Provisions - Provision classification (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Classification by maturity [Abstract]    
Current provisions $ 62,075 $ 53,900
Sociedad Minera Cerro Verde S.A.A.    
Current provisions [abstract]    
Other current provisions 2,536 7,011
Non-current provisions [abstract]    
Other non-current provisions 250,507 247,427
Classification by maturity [Abstract]    
Current portion 2,536 7,011
Non-current portion 250,507 247,427
Total 253,043 254,438
Sociedad Minera Cerro Verde S.A.A. | Provision for legal contingencies [member]    
Current provisions [abstract]    
Other current provisions 2,345 2,411
Non-current provisions [abstract]    
Other non-current provisions 1,836 1,127
Classification by maturity [Abstract]    
Current portion 2,345 2,411
Non-current portion 1,836 1,127
Sociedad Minera Cerro Verde S.A.A. | Provision for remediation and mine closure [Member]    
Current provisions [abstract]    
Other current provisions 99  
Non-current provisions [abstract]    
Other non-current provisions 237,252 234,126
Classification by maturity [Abstract]    
Current portion 99  
Non-current portion 237,252 234,126
Sociedad Minera Cerro Verde S.A.A. | Provision for social commitments [Member]    
Current provisions [abstract]    
Other current provisions 92 4,600
Non-current provisions [abstract]    
Other non-current provisions 10,188 5,783
Classification by maturity [Abstract]    
Current portion 92 4,600
Non-current portion 10,188 5,783
Sociedad Minera Cerro Verde S.A.A. | Provision for uncertainty over income tax treatments [Member]    
Non-current provisions [abstract]    
Other non-current provisions 1,231 2,964
Classification by maturity [Abstract]    
Non-current portion 1,231 2,964
Sociedad Minera Cerro Verde S.A.A. | Tax contingencies [Member]    
Non-current provisions [abstract]    
Other non-current provisions 0 3,427
Classification by maturity [Abstract]    
Non-current portion $ 0 $ 3,427