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Shareholders' Equity and Share Based Compensation - Summary of Non-vested Stock Option (Detail) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021 $ / shares	Dec. 31, 2021 CAD ($) $ / shares shares	Dec. 31, 2020 $ / shares shares	Dec. 31, 2019 $ / shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Beginning balance		1,449,154
Granted		792,236
Vested		(628,161)
Forfeited		(33,334)
Ending balance		1,579,895	1,449,154
Beginning balance | $ / shares		$ 6.52
Granted | (per share)	$ 7.52	7.52	$ 5.83	$ 9.58
Vested | $ / shares		6.65
Forfeited | $ / shares		8.58
Ending balance | $ / shares		$ 6.93
Ending balance | $		$ 671

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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.

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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=120381028&loc=d3e5070-113901

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