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Financial Instruments - Summary of Earnings Before Tax Due To Weakening of Foreign Currency (Detail) - CAD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2022 | Dec. 31, 2021
USD |  |
Impact Of Earnings Before Tax Due To Weakening Of Foreign Currency [Line Items] |  |
Earnings before income taxes | $ 1,632 | $ 1,776
AUD |  |
Impact Of Earnings Before Tax Due To Weakening Of Foreign Currency [Line Items] |  |
Earnings before income taxes | (149) | (90)
BRL |  |
Impact Of Earnings Before Tax Due To Weakening Of Foreign Currency [Line Items] |  |
Earnings before income taxes | $ 92 | $ 167

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