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Income Taxes - Disclosure Of Change In Fair Value of Convertible Debentures Attributable To Credit Risk Fluctuation (Detail) - CAD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Disclosure Of Change In Fair Value of Convertible Debentures Attributable To Credit Risk Fluctuation [Line Items] |  |
Deferred income tax recovery | $ (449) | $ (461)
Change In Fair Value Of Convertible Debentures Attributable To Change In Credit Risk |  |
Disclosure Of Change In Fair Value of Convertible Debentures Attributable To Credit Risk Fluctuation [Line Items] |  |
Deferred income tax recovery | (328) | 17
Change in fair value of marketable securities |  |
Disclosure Of Change In Fair Value of Convertible Debentures Attributable To Credit Risk Fluctuation [Line Items] |  |
Deferred income tax recovery | $ (121) | $ (478)

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