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Transactions with associates companies (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disclosure Of Transactions with associates companies [Line Items]        
Royalty income $ 15,928 $ 18,638 $ 22,297  
Energy income 3,255 3,173 3,181  
Supplies income 169 890 1,259  
Minerals income 0 211 683  
Revenue from mining concessions, property, plant and equipment 0 0 11  
Purchase of supplies from related party 53 55   $ 9
Sales of services 21,052 20,285 23,661  
Dividends received and collected 148,411 3,649 33,388  
Interest income on loans made to related party 89 114 86  
Dividends paid to non-controlling shareholders 6,160 5,140 6,500  
Energy transmission [Member]        
Disclosure Of Transactions with associates companies [Line Items]        
Sales of services 153 320 287  
Operation and maintenance [Member]        
Disclosure Of Transactions with associates companies [Line Items]        
Sales of services 262 280 287  
Administrative and Management services [Member]        
Disclosure Of Transactions with associates companies [Line Items]        
Sales of services   802 672 $ 359
Constructions services [Member]        
Disclosure Of Transactions with associates companies [Line Items]        
Sales of services 8 72 4  
Compania Minera Coimolache S.A. [Member]        
Disclosure Of Transactions with associates companies [Line Items]        
Dividends received and collected 11,320 3,649 4,011  
Sociedad Minera Cerro Verde S.A.A.        
Disclosure Of Transactions with associates companies [Line Items]        
Dividends received and collected 137,091 0 29,377  
Transportadora Callao SA [Member]        
Disclosure Of Transactions with associates companies [Line Items]        
Interest income on loans made to related party 89 114 86  
Newmont Peru Limited [Member]        
Disclosure Of Transactions with associates companies [Line Items]        
Dividends paid to non-controlling shareholders $ 6,160 $ 5,140 $ 6,500