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Share Based Compensation - Stock Appreciation Rights (Details) - Stock Appreciation Rights (SARs) EquityInstruments in Thousands | 12 Months Ended
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Dec. 31, 2022 EquityInstruments $ / shares | Dec. 31, 2021 EquityInstruments $ / shares
Share Based Compensation |  |
Term of awards | 7 years |
Vesting period | 3 years |
Number |  |
Outstanding, beginning of year | EquityInstruments | 463 | 509
Granted | EquityInstruments | 10 | 10
Exercised | EquityInstruments | (121) |
Forfeited/expired | EquityInstruments | (65) | (56)
Outstanding, end of year | EquityInstruments | 287 | 463
Exercisable, end of year | EquityInstruments | 242 | 357
Weighted Average Exercise Price |  |
Outstanding, beginning of year | $ / shares | $ 39.06 | $ 39.25
Granted | $ / shares | 36.76 | 22.63
Exercised | $ / shares | 37.18 |
Forfeited/expired | $ / shares | 38.25 | 37.78
Outstanding, end of year | $ / shares | 39.95 | 39.06
Exercisable, end of year | $ / shares | $ 40.82 | $ 39.68

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- Definition The number of other equity instruments (ie other than share options) exercisable in a share-based payment arrangement. + References Reference 1: 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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