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Income Taxes - Schedule of Loss Carryforwards and Deductible Temporary Differences (Details) - CAD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deductible temporary differences | $ 0.0 | $ 0.1
Non-capital tax losses |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Non-capital and capital tax losses | 49.1 | 71.5
Non-capital tax losses | Expire (2024 to 2043) |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Non-capital and capital tax losses | 7.2 | 29.7
Non-capital tax losses | Never expire |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Non-capital and capital tax losses | 41.9 | 41.8
Capital tax losses | Never expire |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Non-capital and capital tax losses | 7.7 | 7.8
Non-capital and capital tax losses |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Non-capital and capital tax losses | $ 56.8 | $ 79.4

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- Definition The amount of deductible temporary differences for which no deferred tax asset is recognised in the statement of financial position. [Refer: Temporary differences [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2023-01-01 -Paragraph 81 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2023-en-r&anchor=para_81_e&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of unused tax losses for which no deferred tax asset is recognised in the statement of financial position. [Refer: Unused tax losses [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2023-01-01 -Paragraph 81 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2023-en-r&anchor=para_81_e&doctype=Standard -URIDate 2023-03-23 + Details
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