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Share Capital (Schedule of Stock Options Range for Outstanding and Exercisable Shares) (Details) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 shares $ / shares | Dec. 31, 2020 shares $ / shares | Dec. 31, 2019 shares $ / shares
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Number of options outstanding (in shares) | shares | 4,601,726 | 3,476,579 | 4,465,262
Outstanding weighted average exercise price (CAD per share) | $ / shares | $ 7.47 | $ 6.80 | $ 6.59
Weighted average remaining contractual life of options outstanding (years) | 4 years 1 month 9 days |  |
Number of options exercisable (in shares) | shares | 2,581,434 |  |
Exercisable weighted average exercise price (CAD per share)) | $ / shares | $ 6.67 |  |
$3.01 - $5.00 |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Number of options outstanding (in shares) | shares | 540,000 |  |
Outstanding weighted average exercise price (CAD per share) | $ / shares | $ 3.75 |  |
Weighted average remaining contractual life of options outstanding (years) | 1 year 18 days |  |
Number of options exercisable (in shares) | shares | 540,000 |  |
Exercisable weighted average exercise price (CAD per share)) | $ / shares | $ 3.75 |  |
$6.01 - $7.00 |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Number of options outstanding (in shares) | shares | 1,576,265 |  |
Outstanding weighted average exercise price (CAD per share) | $ / shares | $ 6.57 |  |
Weighted average remaining contractual life of options outstanding (years) | 3 years 8 months 19 days |  |
Number of options exercisable (in shares) | shares | 1,277,659 |  |
Exercisable weighted average exercise price (CAD per share)) | $ / shares | $ 6.57 |  |
$7.01 - $8.00 |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Number of options outstanding (in shares) | shares | 809,184 |  |
Outstanding weighted average exercise price (CAD per share) | $ / shares | $ 7.62 |  |
Weighted average remaining contractual life of options outstanding (years) | 5 years 7 days |  |
Number of options exercisable (in shares) | shares | 271,692 |  |
Exercisable weighted average exercise price (CAD per share)) | $ / shares | $ 7.62 |  |
$8.01 - $9.00 |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Number of options outstanding (in shares) | shares | 28,571 |  |
Outstanding weighted average exercise price (CAD per share) | $ / shares | $ 8.63 |  |
Weighted average remaining contractual life of options outstanding (years) | 5 years 1 month 28 days |  |
Number of options exercisable (in shares) | shares | 9,524 |  |
Exercisable weighted average exercise price (CAD per share)) | $ / shares | $ 8.63 |  |
$9.01 - $10.00 |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |
Number of options outstanding (in shares) | shares | 1,647,706 |  |
Outstanding weighted average exercise price (CAD per share) | $ / shares | $ 9.45 |  |
Weighted average remaining contractual life of options outstanding (years) | 5 years 3 days |  |
Number of options exercisable (in shares) | shares | 482,559 |  |
Exercisable weighted average exercise price (CAD per share)) | $ / shares | $ 9.62 |  |

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