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Investments in associates and joint venture - Net share in profit (loss) of investments (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Investments in associates and joint ventures      
Share of profit (loss) from continuing operations of associates and joint ventures accounted for using equity method $ 176,270 $ 240,450 $ 62,702
Net share in profit (loss) of investments in joint venture (11) 36 (252)
Net share in profit (loss) of investments 176,270 240,450 62,702
Sociedads Minera Cerro Verde S.A.A.      
Investments in associates and joint ventures      
Net share in profit (loss) of investments in associates 181,221 233,342 53,767
Compania Minera Coimolache S.A.      
Investments in associates and joint ventures      
Share of profit (loss) from continuing operations of associates and joint ventures accounted for using equity method (2,493) 8,170 10,055
Net share in profit (loss) of investments in associates (2,493) 8,170 10,055
Net share in profit (loss) of investments (2,493) 8,170 10,055
Tinka resources Ltd      
Investments in associates and joint ventures      
Share of profit (loss) from continuing operations of associates and joint ventures accounted for using equity method (2,447) (1,098) (868)
Net share in profit (loss) of investments in associates (2,447) (1,098) (868)
Net share in profit (loss) of investments (2,447) (1,098) (868)
Other minor investments [Member]      
Investments in associates and joint ventures      
Net share in profit (loss) of investments in associates $ 176,281 $ 240,414 $ 62,954