XML 183 R127.htm IDEA: XBRL DOCUMENT v3.22.1
Share-based payment arrangements - Summary of movements in number of share options outstanding and weighted average exercise prices (Details)
 12 Months Ended
Dec. 31, 2021
shares
$ / shares
Dec. 31, 2020
shares
$ / shares
Weighted average price Cdn$    
Beginning balance (in dollars per share) | $ / shares $ 11.56 $ 14.08
Granted (in dollars per share) | $ / shares 13.27 12.72
Exercised (in dollars per share) | $ / shares 6.36 7.75
Expired (in dollars per share) | $ / shares 16.27 33.40
Forfeited (in dollars per share) | $ / shares 12.68 12.53
Ending balance (in dollars per share) | $ / shares $ 11.32 $ 11.56
Number of options    
Beginning balance (in shares) | shares 5,092,388 5,714,491
Granted (in shares) | shares 1,091,891 1,156,744
Exercised (in shares) | shares (339,540) (618,915)
Expired (in shares) | shares (803,771) (813,933)
Forfeited (in shares) | shares (790,230) (345,999)
Ending balance (in shares) | shares 4,250,738 5,092,388