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Income Taxes - Summary of Income Tax Rate (Detail) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Income Tax Disclosure [Abstract] |  |
Canadian statutory income tax rate | 26.50% | 26.50%
Tax on repatriation of foreign earnings | 3.60% | 5.30%
Net effect of losses not benefited | 1.20% | 7.70%
Non-taxable capital losses (gains) | 1.20% | (0.30%)
Reserve for uncertain tax positions | 0.60% | 0.40%
Earnings of equity accounted investees | (1.40%) | (1.60%)
Foreign exchange re-measurement | (1.70%) | (0.60%)
Deductible inflationary adjustments | (1.70%) | (3.30%)
Valuation allowance on deferred tax assets | (3.00%) | (2.20%)
Foreign rate differentials | (3.20%) | 0.60%
Research and development tax credits | (4.10%) | (7.10%)
Others | 1.90% | 1.60%
Effective income tax rate | 19.90% | 27.00%

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