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Intangible assets (Details) - CAD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Reconciliation of carrying amount [Line Items] |  |
Intangible assets, beginning of year | $ 65,602 |
Intangible assets, end of year | 60,410 | $ 65,602
Cost [Member] |  |
Reconciliation of carrying amount [Line Items] |  |
Intangible assets, beginning of year | 238,190 | 228,631
Effect of movements in exchange rates | (5,664) | 9,559
Intangible assets, end of year | 232,526 | 238,190
Accumulated amortization [member] |  |
Reconciliation of carrying amount [Line Items] |  |
Intangible assets, beginning of year | 172,588 | 158,619
Amortization charge | 5,049 | 4,799
Effect of movements in exchange rates | (5,521) | 9,170
Intangible assets, end of year | 172,116 | 172,588
Contracts [member] |  |
Reconciliation of carrying amount [Line Items] |  |
Intangible assets, beginning of year | 3,937 |
Intangible assets, end of year | 2,613 | 3,937
Contracts [member] | Cost [Member] |  |
Reconciliation of carrying amount [Line Items] |  |
Intangible assets, beginning of year | 119,371 | 109,812
Effect of movements in exchange rates | (5,664) | 9,559
Intangible assets, end of year | 113,707 | 119,371
Contracts [member] | Accumulated amortization [member] |  |
Reconciliation of carrying amount [Line Items] |  |
Intangible assets, beginning of year | 115,434 | 104,939
Amortization charge | 1,181 | 1,325
Effect of movements in exchange rates | (5,521) | 9,170
Intangible assets, end of year | 111,094 | 115,434
Intellectual Property [member] |  |
Reconciliation of carrying amount [Line Items] |  |
Intangible assets, beginning of year | 61,665 |
Intangible assets, end of year | 57,797 | 61,665
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 | 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 | 57,154 | 53,680
Amortization charge | 3,868 | 3,474
Effect of movements in exchange rates | 0 | 0
Intangible assets, end of year | $ 61,022 | $ 57,154

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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 2019-01-01 -Paragraph 118 -Subparagraph e -Clause vi -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2019-en-r&anchor=para_118_e_vi&doctype=Standard -URIDate 2019-03-27 + 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 2019-01-01 -Paragraph 118 -Subparagraph e -Clause vii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2019-en-r&anchor=para_118_e_vii&doctype=Standard -URIDate 2019-03-27 + Details
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