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Goodwill and Impairment Review of Goodwill - Additional Information (Detail) - CAD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Sep. 30, 2022 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of reconciliation of changes in goodwill [line items] |  |  |
Impairment loss recognised in profit or loss, goodwill |  | $ (48,000) | $ 0
Rest Of World [Member] |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |
Tax rate effect of impairment of goodwill |  |  | 12.60%
CANADA [Member] |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |
Impairment loss recognised in profit or loss, goodwill | $ 48,000 |  |
EH Operating Segments [Member] |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |
Tax rate effect of impairment of goodwill |  | 14.50% |
Latin America [Member] |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |
Tax rate effect of impairment of goodwill |  | 15.30% |
Earnings before finance costs and tax |  | $ 43,700 |
Impact on value in use |  | $ 54,800 |
United States |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |
Tax rate effect of impairment of goodwill |  | 10.70% | 9.40%
Canada |  |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |  |
Tax rate effect of impairment of goodwill |  | 12.00% | 10.70%

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- Definition The amount of impairment loss recognised in profit or loss for goodwill. [Refer: Impairment loss recognised in profit or loss; Goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2022-03-24 -Paragraph B67 -Subparagraph d -Clause v -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B67_d_v&doctype=Appendix&subtype=B -URIDate 2022-03-24 + Details
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- Definition Tax rate effect on the reconciliation between the average effective tax rate and the applicable tax rate resulting from the impairment of goodwill. [Refer: Average effective tax rate; Applicable tax rate; Goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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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