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Capital Stock and Reserves - Schedule of Share-based Compensation, Stock Options, Activity (Details) - Employee Stock Option [Member] - $ / shares
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options outstanding, beginning of period 3,736,157 4,892,962
Exercised   (38,754)
Forfeited   (44,362)
Expired (126,569) (885,698)
Cancelled (2,197) (10,917)
Stock options outstanding, end of period 3,607,391 3,913,231
Stock options exercisable, end of period 3,524,298 3,615,079
Stock options outstanding, weighted average exercise price per share $ 26.61 $ 26.81
Exercised, weighted average exercise price per share   21.26
Forfeited, weighted average exercise price per share   23.12
Expired, weighted average exercise price per share 33.61 28.31
Cancelled, weighted average exercise price per share 32.50 27.20
Stock options outstanding, weighted average exercise price per share 26.36 26.56
Stock options exercisable, weighted average exercise price per share, end of period $ 26.45 $ 26.93