v3.26.1
Inventories (Tables)
12 Months Ended
Dec. 31, 2025
Disclosure of Inventories [Abstract]  
Disclosure of detailed information about inventories [Table Text Block]
    Dec. 31, 2025     Dec. 31, 2024  
Current            
Stockpile $ 17.9   $ 26.9  
Finished goods   76.0     81.6  
Materials and supplies   105.3     88.9  
    199.2     197.4  
Non-current            
Stockpile   5.3     2.2  
Low grade stockpile1   5.7     5.5  
Materials and supplies   10.6     8.9  
    21.6     16.6  
  $ 220.8   $ 214.0