Income taxes (Narrative) (Details) - CAD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Provisions [Line Items] | |||
| Deferred tax asset | $ (666,457,000) | $ (843,131,000) | $ (892,860,000) |
| Income tax expense | 187,719,000 | 84,874,000 | |
| Income tax losses carried forward | 1,960,169,000 | 1,827,706,000 | |
| Temporary differences related to loss carry forwards where no future benefit has been recognized | 1,634,391,000 | 1,542,137,000 | |
| Switzerland [Member] | |||
| Provisions [Line Items] | |||
| Income tax expense | $ 3,307,800 | $ 4,005,000 | |
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- Definition Tax losses that have been incurred and are carried forward for use against future taxable profit. No definition available.
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- Definition The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. No definition available.
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- References Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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