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Share-based payments - Outstanding RSUs/PSUs Activity (Details) - RSUs/PSUs | 12 Months Ended
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Dec. 31, 2022 CAD ($) shares | Dec. 31, 2021 CAD ($) shares
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Beginning balance, outstanding (in shares) | 3,085,667 | 2,973,393
Granted (in shares) | 1,016,211 | 1,178,794
Dividends credited (in shares) | 173,100 | 175,516
Settled (in shares) | (1,061,392) | (1,135,128)
Forfeited (in shares) | (89,399) | (106,908)
Ending balance, outstanding (in shares) | 3,124,187 | 3,085,667
Vested (in shares) | 887,158 | 1,000,394
Weighted average fair value at measurement date, other equity instruments granted | $ | $ 66 | $ 60

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- Definition The number of other equity instruments (ie other than share options) granted in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 47 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_47_b&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2022-03-24 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2022-en-r&anchor=para_45&doctype=Standard -URIDate 2022-03-24 + Details
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