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Financial expenses and income - Financial Income (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Financial Income [Line Items]      
Total finance revenues $ 14,443 $ 5,952 $ 2,411
Sociedad Minera Cerro Verde S.A.A.      
Disclosure Of Financial Income [Line Items]      
Gain in the fair value of market liquid investment 11,215 803 1,816
Interest income on tax obligations 4,921 1,107 0
Other Interest income 1,099 910 534
Total finance revenues $ 17,235 $ 2,820 $ 2,350