v3.26.1
Financial risk management - Disclosure of level 3 unobservable inputs (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure of detailed information about financial instruments [line items]    
Trade and other receivables $ 8,856 $ 7,132
Derivative instruments - assets 1,815 0
Derivative instruments - liabilities 0 709
Credit facility 7,440 9,490
Term loan facility 48,230 0
Level 2 [Member]    
Disclosure of detailed information about financial instruments [line items]    
Trade and other receivables 8,856 7,132
Derivative instruments - assets 4,773 0
Derivative instruments - liabilities 0 709
Level 3 [Member]    
Disclosure of detailed information about financial instruments [line items]    
Metals contract liability 41,026 35,804
Silver contract liability 37,521 14,568
Royalty payable 2,753 2,762
Amortized cost [Member]    
Disclosure of detailed information about financial instruments [line items]    
Cash and cash equivalents 129,783 20,002
Restricted cash 4,716 4,527
Pre-payment facility 0 2,000
Credit facility 7,440 9,490
Term loan facility 48,230 0
Convertible debenture $ 0 $ 10,849