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Related party transactions (Narrative) (Details) $ in Millions, $ in Millions | Dec. 31, 2023 CAD ($) | Dec. 31, 2023 USD ($) | Sep. 30, 2023 CAD ($) | Dec. 31, 2022 CAD ($)
--- | --- | --- | --- | ---
Associates [Member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Notes receivable | $ 8.2 | $ 6.2 |  | $ 30.9
Insurance Company [Member] | Environmental Bond [Member] |  |  |  |
Disclosure of transactions between related parties [line items] |  |  |  |
Bonds issued |  |  | $ 17.9 |

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- Definition The amounts receivable resulting from related party transactions. [Refer: Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2023-01-01 -Paragraph 20 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=24&code=ifrs-tx-2023-en-r&anchor=para_20&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2023-01-01 -Paragraph 18 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=24&code=ifrs-tx-2023-en-r&anchor=para_18_b&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of bonds issued by the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_112_c&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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