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Net Income (Loss) Per Share (Details) - CAD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Net loss
Net loss - basic	$ (2,438,964)	$ (12,459)
Net loss - diluted	$ (2,438,964)	$ (12,459)
Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract]
Weighted average common shares - basic (in shares)	560,657	557,048
Dilutive effect of share awards (in shares)	0	0
Dilutive effect of share options (in shares)	0	0
Weighted average common shares - diluted (in shares)	560,657	557,048
Net loss per share
Net income (loss) per share - basic (in cad per share)	$ (4.35)	$ (0.02)
Net income (loss) per share - diluted (in cad per share)	$ (4.35)	$ (0.02)

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The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

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