XML 138 R79.htm IDEA: XBRL DOCUMENT v3.25.0.1
Share capital - Share-based payment expenses (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Share capital [Line Items]    
Total share-based payment expenses $ 21.3 $ 8.5
Share-based payment expenses recognized in operating expenses (7.6) (3.1)
Share-based payment expenses 13.7 5.4
Stock option expense    
Share capital [Line Items]    
Total share-based payment expenses 0.1 0.3
Performance share unit expense    
Share capital [Line Items]    
Total share-based payment expenses 3.2 1.5
Restricted share unit expense    
Share capital [Line Items]    
Total share-based payment expenses 12.3 5.0
Deferred share unit expense    
Share capital [Line Items]    
Total share-based payment expenses 5.5 1.6
Shares issued under First Nations agreements    
Share capital [Line Items]    
Total share-based payment expenses $ 0.2 $ 0.1