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Property, plant, equipment and development costs - Discount Rate (Details)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
La Zanja    
Disclosure of Mining concessions, development costs, property, plant and equipment, net [Line Items]    
Post-Tax discount rate 9.13% 7.01%
Pre-Tax discount rate 14.08% 10.81%
Rio Seco    
Disclosure of Mining concessions, development costs, property, plant and equipment, net [Line Items]    
Post-Tax discount rate 10.60% 7.86%
Pre-Tax discount rate 16.34% 12.12%
Orcopampa    
Disclosure of Mining concessions, development costs, property, plant and equipment, net [Line Items]    
Post-Tax discount rate 8.12% 6.04%
Pre-Tax discount rate 12.52% 9.31%
Uchucchacua    
Disclosure of Mining concessions, development costs, property, plant and equipment, net [Line Items]    
Post-Tax discount rate 8.12% 6.04%
Pre-Tax discount rate 12.52% 9.31%