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Sales - geographic region (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of Sales of goods [Line Items]      
Less: Royalty contributions (see Note 2(k)) $ (17,733) $ (12,974) $ (11,749)
Revenue from sale of goods 801,199 863,470 637,619
Sociedad Minera Cerro Verde S.A.A.      
Disclosure of Sales of goods [Line Items]      
Revenue from sale of goods before deducting royalty expense 3,975,295 4,199,448 2,538,593
Sociedad Minera Cerro Verde S.A.A. | Asia [Member]      
Disclosure of Sales of goods [Line Items]      
Revenue from sale of goods before deducting royalty expense 3,229,797 3,223,191 2,096,084
Sociedad Minera Cerro Verde S.A.A. | North America [Member]      
Disclosure of Sales of goods [Line Items]      
Revenue from sale of goods before deducting royalty expense 386,768 429,330 120,865
Sociedad Minera Cerro Verde S.A.A. | Europe [Member]      
Disclosure of Sales of goods [Line Items]      
Revenue from sale of goods before deducting royalty expense 192,859 314,425 207,954
Sociedad Minera Cerro Verde S.A.A. | South America primarily Peru [Member]      
Disclosure of Sales of goods [Line Items]      
Revenue from sale of goods before deducting royalty expense 165,871 232,502 106,489
Sociedad Minera Cerro Verde S.A.A. | Central America      
Disclosure of Sales of goods [Line Items]      
Revenue from sale of goods before deducting royalty expense $ 0 $ 0 $ 7,201