Loss (earnings) per share (Details) - CAD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Loss Per Share
Net loss (earnings)	$ 5,577	$ 4,060	$ (40,059)	$ 8,985
Weighted average basic number of shares outstanding	136,600,071	117,893,013	131,266,530	117,861,667
Basic loss (earnings) per share	$ 0.04	$ 0.03	$ (0.31)	$ 0.08
Weighted average diluted number of shares outstanding	136,600,071	117,893,013	139,492,021	117,861,667
Diluted (earnings) loss per share	$ 0.04	$ 0.03	$ (0.29)	$ 0.08

The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator), divided by the weighted average number of ordinary shares outstanding during the period (the denominator), both adjusted for the effects of all dilutive potential ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

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