XML 196 R88.htm IDEA: XBRL DOCUMENT v3.21.1
Share capital - Share-based payment expenses (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Share capital    
Total share-based payment expenses $ 15.4 $ 2.7
Share-based payment expenses recognized in operating expenses 7.8 1.0
Stock option expense    
Share capital    
Total share-based payment expenses 0.8 0.5
Performance share unit expense    
Share capital    
Total share-based payment expenses 1.4 0.3
Restricted share unit expense    
Share capital    
Total share-based payment expenses 8.4 1.1
Deferred share unit expense    
Share capital    
Total share-based payment expenses 3.6 0.8
Shares issued under First Nations agreements    
Share capital    
Total share-based payment expenses $ 1.2 $ 0.0