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Share Based Payments - Schedule of Number of Other Equity Instruments (Details)
 12 Months Ended
Dec. 31, 2019
CAD ($)
shares
Dec. 31, 2018
CAD ($)
shares
Dec. 31, 2017
CAD ($)
shares
Restricted share units      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Outstanding, beginning of the year (shares) 260,755 190,407 139,237
Granted during the year (shares) 270,098 102,855 51,170
Forfeited during the year (shares) 0 (4,210) 0
Vested during the year (shares) (321,196) (28,297) 0
Outstanding, end of the year (shares) 209,657 260,755 190,407
Weighted average fair value at measurement date, other equity instruments granted | $ $ 0.80 $ 3.35 $ 5.96
Performance share units      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Outstanding, beginning of the year (shares) 63,156 94,734 88,419
Granted during the year (shares) 0 0 6,315
Forfeited during the year (shares) 0 (31,578) 0
Vested during the year (shares) (2,105) 0 0
Outstanding, end of the year (shares) 61,051 63,156 94,734
Weighted average fair value at measurement date, other equity instruments granted | $     $ 3.33