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Related parties - Transactions with related entities that affected results (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Expenses      
Supplies $ 81 $ 57 $ 53
Sociedad Minera Cerro Verde S.A.A.      
Revenues      
Reimbursement of expenses 344 747 65
Supplies 0 2 0
Total revenues 344 749 65
Expenses      
Reimbursement of information technology services 25,055 22,023 16,941
Commissions 11,347 10,550 8,484
Management fee 3,098 2,540 2,352
Stock-based compensation (a) 2,776 2,502 2,894
Supplies 6 7 0
Total expenses 42,282 37,622 30,671
Amounts of related payments/settlements $ 2,800 3,400 2,700
Other capital contributions   $ 900 $ 200