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Summary of Per Share Amounts (Detail) - CAD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Weighted average ordinary shares used in calculating basic and diluted earnings per share [abstract]
Net earnings (loss) for the period	$ (177,386)	$ (120,138)
Weighted average shares outstanding – basic	13,315	13,722
Effect of stock options and other equity compensation plans	0
Weighted average shares outstanding – diluted	13,315	13,722

X

- Definition

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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The total of income less expenses from continuing and discontinued operations, excluding the components of other comprehensive income. [Refer: Other comprehensive income]

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