v3.26.1
Copper Mountain non-controlling interest acquisition (Tables)
12 Months Ended
Dec. 31, 2025
Disclosure of detailed information about business combination [line items]  
Disclosure of detailed information about acquisition transaction [Table Text Block]
       
Carrying value of non-controlling interest as at April 30, 2025 $ 93.2  
Transfer of net gain on translation of foreign currency balances   4.0  
Less: total consideration   (35.9 )
Surplus - recorded in equity   61.3