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Share Based Compensation Plan - Summary Of Non-vested Stock Option (Detail) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019 CAD ($) $ / shares shares	Dec. 31, 2019 $ / shares	Dec. 31, 2018 $ / shares shares	Dec. 31, 2017 $ / shares
Share-based Payment Arrangement [Abstract]
Beggining balance	516,329
Granted	510,000
Vested	(270,999)
Forfeited	(10,001)
Ending balance	745,329		516,329
Beggining balance | $ / shares	$ 2.27
Granted | (per share)	9.58	$ 9.58	$ 3.22	$ 2.09
Vested | $ / shares	1.89
Forfeited | $ / shares	1.06
Ending balance | $ / shares	$ 7.43
Ending balance | $	$ 699

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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Number of non-vested options outstanding.

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Weighted average grant-date fair value of non-vested options forfeited.

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Weighted average grant-date fair value of non-vested options outstanding.

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Share based compensation arrangement by share based payment award options nonvested outstanding intrinsic value

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