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Income Tax - Additional Information (Detail) $ in Thousands, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 CAD ($) | Dec. 31, 2021 CAD ($) | Dec. 31, 2022 USD ($)
Disclosure of defined benefit plans [line items] |  |  |
Federal Income Tax Rate | 15.00% | 15.00% |
Deductible temporary differences for which no deferred tax asset is recognised | $ 2,172,298 | $ 225,903 |
Unused tax credits for which no deferred tax asset recognised | $ 1,100 | $ 1,100 |
Average effective tax rate | 8.40% | 8.80% |
US |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Unused tax credits for which no deferred tax asset recognised |  |  | $ 122.4

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- Definition The tax expense (income) divided by the accounting profit. [Refer: Accounting profit] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2022-03-24 -Paragraph 81 -Subparagraph c -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81_c_ii&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of unused tax credits for which no deferred tax asset is recognised in the statement of financial position. [Refer: Unused tax credits [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2022-03-24 -Paragraph 81 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81_e&doctype=Standard -URIDate 2022-03-24 + Details
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