v3.26.1
Identification and business activity - Subsidiaries (Details)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Compaa Minera Condesa S.A | Mining activities    
Identification and business activity    
Country of incorporation and business Peru  
Compania Minera Colquirrumi S.A. [Member] | Mining activities    
Identification and business activity    
Country of incorporation and business Peru  
Sociedad Minera El Brocal S.A.A | Mining activities    
Identification and business activity    
Country of incorporation and business Peru  
Proportion of ownership interest in subsidiary 58.24% 58.24%
Inversiones Colquijirca S.A. | Mining activities    
Identification and business activity    
Country of incorporation and business Peru  
Minera La Zanja S.R.L | Mining activities    
Identification and business activity    
Country of incorporation and business Peru  
El Molle Verde S.A.C. [Member] | Mining activities    
Identification and business activity    
Country of incorporation and business Peru  
Apu Coropuna S.R.L. | Mining activities    
Identification and business activity    
Country of incorporation and business Peru  
Cerro Hablador S.A.C. [Member] | Mining activities    
Identification and business activity    
Country of incorporation and business Peru  
Minera Azola S.A.C. [Member] | Mining activities    
Identification and business activity    
Country of incorporation and business Peru  
Consorcio Energtico de Huancavelica S.A. | Energy generation and transmission services    
Identification and business activity    
Country of incorporation and business Peru  
Empresa de Generacin Huanza S.A | Energy generation and transmission services    
Identification and business activity    
Country of incorporation and business Peru  
Procesadora Industrial Ro Seco S.A.C. | Industrial activities    
Identification and business activity    
Country of incorporation and business Peru  
Buenaventura Trading S.A.S. | Others    
Identification and business activity    
Country of incorporation and business Uruguay  
Direct | Compaa Minera Condesa S.A | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 100.00% 100.00%
Direct | Compania Minera Colquirrumi S.A. [Member] | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 100.00% 100.00%
Direct | Sociedad Minera El Brocal S.A.A | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 3.19% 3.19%
Direct | Inversiones Colquijirca S.A. | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 89.76% 89.76%
Direct | Minera La Zanja S.R.L | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 100.00% 100.00%
Direct | El Molle Verde S.A.C. [Member] | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 99.98% 99.98%
Direct | Apu Coropuna S.R.L. | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 70.00% 70.00%
Direct | Cerro Hablador S.A.C. [Member] | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 99.00% 99.00%
Direct | Minera Azola S.A.C. [Member] | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 99.00% 99.00%
Direct | Consorcio Energtico de Huancavelica S.A. | Energy generation and transmission services    
Identification and business activity    
Proportion of ownership interest in subsidiary 100.00% 100.00%
Direct | Empresa de Generacin Huanza S.A | Energy generation and transmission services    
Identification and business activity    
Proportion of ownership interest in subsidiary 0.00% 0.00%
Direct | Procesadora Industrial Ro Seco S.A.C. | Industrial activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 100.00% 100.00%
Direct | Buenaventura Trading S.A.S. | Others    
Identification and business activity    
Proportion of ownership interest in subsidiary 100.00% 0.00%
Indirect | Compaa Minera Condesa S.A | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 0.00% 0.00%
Indirect | Compania Minera Colquirrumi S.A. [Member] | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 0.00% 0.00%
Indirect | Sociedad Minera El Brocal S.A.A | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 58.24% 58.24%
Indirect | Inversiones Colquijirca S.A. | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 10.24% 10.24%
Indirect | Minera La Zanja S.R.L | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 0.00% 0.00%
Indirect | El Molle Verde S.A.C. [Member] | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 0.02% 0.02%
Indirect | Apu Coropuna S.R.L. | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 0.00% 0.00%
Indirect | Cerro Hablador S.A.C. [Member] | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 1.00% 1.00%
Indirect | Minera Azola S.A.C. [Member] | Mining activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 1.00% 1.00%
Indirect | Consorcio Energtico de Huancavelica S.A. | Energy generation and transmission services    
Identification and business activity    
Proportion of ownership interest in subsidiary 0.00% 0.00%
Indirect | Empresa de Generacin Huanza S.A | Energy generation and transmission services    
Identification and business activity    
Proportion of ownership interest in subsidiary 100.00% 100.00%
Indirect | Procesadora Industrial Ro Seco S.A.C. | Industrial activities    
Identification and business activity    
Proportion of ownership interest in subsidiary 0.00% 0.00%
Indirect | Buenaventura Trading S.A.S. | Others    
Identification and business activity    
Proportion of ownership interest in subsidiary 0.00% 0.00%