Share-based payments - Schedule of Stock Options (Details) |
6 Months Ended |
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Jun. 30, 2026
shares
$ / shares
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| Share-based Payment Arrangements [Abstract] | |
| Outstanding, beginning of period (in shares) | shares | 5,503,174 |
| Granted (in shares) | shares | 3,341,630 |
| Forfeited or expired (in shares) | shares | (82,575) |
| Outstanding, end of period (in shares) | shares | 8,762,229 |
| Exercisable (in shares) | shares | 5,420,599 |
| Outstanding, beginning of period (CAD per share) | $ / shares | $ 62 |
| Granted (CAD per share) | $ / shares | 36 |
| Forfeited or expired (CAD per share) | $ / shares | 63 |
| Outstanding, end of period (CAD per share) | $ / shares | 52 |
| Exercisable (CAD per share) | $ / shares | $ 62 |
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- Definition Share-based Payment Arrangements [Abstract] No definition available.
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- Definition The number of share options outstanding in a share-based payment arrangement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The number of share options exercisable in a share-based payment arrangement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The number of share options forfeited in a share-based payment arrangement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The number of share options granted in a share-based payment arrangement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The weighted average exercise price of share options exercisable in a share-based payment arrangement. [Refer: Weighted average [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The weighted average exercise price of share options forfeited in a share-based payment arrangement. [Refer: Weighted average [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The weighted average exercise price of share options granted in a share-based payment arrangement. [Refer: Weighted average [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The weighted average exercise price of share options outstanding in a share-based payment arrangement. [Refer: Weighted average [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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