v3.26.1
Related parties - (Schedule of subsidiaries) (Details)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
HudBay Peru Inc. [Member]    
Disclosure of transactions between related parties [line items]    
Beneficial ownership of ultimate controlling party (HudBay Minerals Inc.) 100.00% 100.00%
HudBay Peru S.A.C. [Member]    
Disclosure of transactions between related parties [line items]    
Beneficial ownership of ultimate controlling party (HudBay Minerals Inc.) 100.00% 100.00%
HudBay (BVI) Inc. [Member]    
Disclosure of transactions between related parties [line items]    
Beneficial ownership of ultimate controlling party (HudBay Minerals Inc.) 100.00% 100.00%
Hudbay Arizona Inc. [Member]    
Disclosure of transactions between related parties [line items]    
Beneficial ownership of ultimate controlling party (HudBay Minerals Inc.) 100.00% 100.00%
Copper World LLC. [Member]    
Disclosure of transactions between related parties [line items]    
Beneficial ownership of ultimate controlling party (HudBay Minerals Inc.) 100.00% 100.00%
Mason Resources (US) Inc. [Member]    
Disclosure of transactions between related parties [line items]    
Beneficial ownership of ultimate controlling party (HudBay Minerals Inc.) 100.00% 100.00%
Hudbay Arizona (Barbados) SRL [Member]    
Disclosure of transactions between related parties [line items]    
Beneficial ownership of ultimate controlling party (HudBay Minerals Inc.) 100.00% 100.00%
Copper Mountain Mine (BC) Ltd. [Member]    
Disclosure of transactions between related parties [line items]    
Beneficial ownership of ultimate controlling party (HudBay Minerals Inc.) 100.00% 75.00%