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Related Party Transactions - Shadow Share Activity (Details) - TCI Shadow Shares shares in Thousands | 12 Months Ended
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Dec. 31, 2024 shares € / shares | Dec. 31, 2024 shares $ / shares | Dec. 31, 2023 shares € / shares | Dec. 31, 2023 shares $ / shares | Dec. 31, 2022 shares € / shares | Dec. 31, 2022 shares $ / shares
Disclosure of transactions between related parties [line items] |  |  |  |  |  |
Shadow shares outstanding, beginning balance (in shares) | 784 | 784 | 653 | 653 | 423 | 423
Shadow shares granted (in shares) | 179 | 179 | 260 | 260 | 249 | 249
Shadow shares vested and distributed (in shares) | (202) | (202) | (113) | (113) | 0 | 0
Shadow shares cancelled (in shares) | (23) | (23) | (16) | (16) | (19) | (19)
Shadow shares outstanding, ending balance (in shares) | 738 | 738 | 784 | 784 | 653 | 653
Fair value of awards granted in year (in amount per share) | (per share) | € 29.10 | $ 31.15 | € 14.64 | $ 16.08 | € 11.90 | $ 12.39

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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/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 47 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_b&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The number of other equity instruments (ie other than share options) exercised or vested in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The number of other equity instruments (ie other than share options) forfeited in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The weighted average exercise price of share options granted in a share-based payment arrangement. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 45 -Subparagraph b -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45_b_ii&doctype=Standard -URIDate 2024-03-27 + Details
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