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Tax situation - Effective income tax (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 01, 2017
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Income Tax Explanatory          
Profit before income tax   $ 82,524 $ 124,429 $ 101,129  
Income tax rate 29.50%   32.00% 32.00% 32.00%
Expected income tax expense   10,302 $ (82,803) $ 72,237  
Non - deductible expenses   12,948 (13,144) 2,048  
Aggregate current and deferred tax relating to items credited (charged) directly to equity     (13,372)    
Tax expense (income), continuing operations   42,994 41 (23,671)  
Sociedad Minera Cerro Verde S.A.A.          
Disclosure Of Income Tax Explanatory          
Profit before income tax   $ 1,330,762 $ 1,433,900 $ 1,927,177  
Income tax rate   32.00% 32.00% 32.00%  
Expected income tax expense   $ 425,844 $ 458,848 $ 616,697  
Special mining tax and mining royalties   (32,182) (31,188) (46,366)  
Provision (gain) for uncertainty about treatments of income taxes   (1,617) (19,667) (14,379)  
Non - deductible expenses   12,744 13,608 14,609  
Income tax true - ups   1,267 (11,831) 6,345  
Moratorium interest   40,769 (741) 1,019  
Income tax rate change effect on deferred taxes for change in Peruvian tax law once the current Stability Contract expires (from 32% to 30.85%)   208 1,117 840  
Others   1,518 3,055 2,830  
Aggregate current and deferred tax relating to items credited (charged) directly to equity   448,551 413,201 581,595  
Mining taxes charged to results   96,082 88,224 144,895  
Supplementary retirement fund charged to results   7,165 7,122 9,213  
Tax expense (income), continuing operations   $ 551,798 $ 508,547 $ 735,703  
Effective income tax   41.46% 35.47% 38.18%