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Commitments and contingencies - Yanacocha - Tax Dispute related to the amortization of the contractual rights (Details)
 12 Months Ended
Dec. 31, 2022
USD ($)
Dec. 31, 2022
PEN (S/)
Dec. 31, 2022
PEN (S/)
Dec. 31, 2021
USD ($)
Dec. 31, 2021
PEN (S/)
Commitments and contingencies          
Contingent liability $ 10,827,000   S/ 41,358,000 $ 10,364,000 S/ 39,590,000
Interest payable 1,126,000   S/ 4,289,000    
Potential liability in the form of fines and interest 254,200,000        
Amount related to workers participation $ 1,289,000 S/ 4,922,000