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Income Tax - Additional Information (Detail) - CAD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Text Block [Abstract] |  |  |  |  |
Deductible temporary differences for which no deferred tax asset is recognised |  |  | $ 225,903 | $ 49,667 |
Unused tax credits for which no deferred tax asset recognised |  |  | $ 1,100 | $ 0 |
Description of expiry date of deductible temporary differences, unused tax losses and unused tax credits |  |  | The Company’s unused tax losses and tax credits are subject to expiration in the years 2022 through 2041. |  |
Federal income tax rate | 15.00% | 15.00% | 15.00% | 15.00% | 15.00%
Average effective tax rate | 8.40% | 8.80% | 8.80% | 9.40% | 11.50%
Corporate income tax rate |  |  | 8.00% | 8.99% | 11.50%

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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 2021-01-01 -Paragraph 81 -Subparagraph c -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_c_ii&doctype=Standard -URIDate 2021-03-24 + 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 2021-01-01 -Paragraph 81 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_e&doctype=Standard -URIDate 2021-03-24 + Details
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