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Intangible assets (Reconciliation of carrying amount of intangible assets) (Details) - CAD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Reconciliation of carrying amount [Line Items] |  |
Intangible assets, beginning of year | $ 47,117 |
Intangible assets, end of year | 43,577 | $ 47,117
Cost [Member] |  |
Reconciliation of carrying amount [Line Items] |  |
Intangible assets, beginning of year | 237,464 | 229,437
Effect of movements in exchange rates |  | 8,027
Intangible assets, end of year |  | 237,464
Accumulated amortization [member] |  |
Reconciliation of carrying amount [Line Items] |  |
Intangible assets, beginning of year | (190,347) | (178,190)
Amortization charge |  | (4,193)
Effect of movements in exchange rates |  | (7,964)
Intangible assets, end of year |  | (190,347)
Contracts [member] |  |
Reconciliation of carrying amount [Line Items] |  |
Intangible assets, beginning of year | 56 |
Intangible assets, end of year |  | 56
Contracts [member] | Cost [Member] |  |
Reconciliation of carrying amount [Line Items] |  |
Intangible assets, beginning of year | 118,645 | 110,618
Effect of movements in exchange rates |  | 8,027
Intangible assets, end of year |  | 118,645
Contracts [member] | Accumulated amortization [member] |  |
Reconciliation of carrying amount [Line Items] |  |
Intangible assets, beginning of year | (118,589) | (109,886)
Amortization charge |  | (739)
Effect of movements in exchange rates |  | (7,964)
Intangible assets, end of year |  | (118,589)
Intellectual Property [member] |  |
Reconciliation of carrying amount [Line Items] |  |
Intangible assets, beginning of year | 47,061 |
Intangible assets, end of year | 43,577 | 47,061
Intellectual Property [member] | Cost [Member] |  |
Reconciliation of carrying amount [Line Items] |  |
Intangible assets, beginning of year | 118,819 | 118,819
Effect of movements in exchange rates |  | 0
Intangible assets, end of year | 118,819 | 118,819
Intellectual Property [member] | Accumulated amortization [member] |  |
Reconciliation of carrying amount [Line Items] |  |
Intangible assets, beginning of year | (71,758) | (68,304)
Amortization charge | (3,484) | (3,454)
Effect of movements in exchange rates |  | 0
Intangible assets, end of year | $ (75,242) | $ (71,758)

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- Definition The amount of amortisation of intangible assets other than goodwill. [Refer: Depreciation and amortisation expense; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2023-01-01 -Paragraph 118 -Subparagraph e -Clause vi -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2023-en-r&anchor=para_118_e_vi&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The increase (decrease) in intangible assets and goodwill resulting from the net exchange differences arising when the financial statements are translated from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2023-01-01 -Paragraph 118 -Subparagraph e -Clause vii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2023-en-r&anchor=para_118_e_vii&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of intangible assets and goodwill held by the entity. [Refer: Goodwill; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_55&doctype=Standard -URIDate 2023-03-23 + Details
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