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Share-based compensation - Schedule Of Awards Granted Phantom RSU Award (Details) - Phantom RSU award - shares | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
2019 | Second anniversary of grant date |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Grant (in shares) |  |  |  |  | 186,081
2019 | Third anniversary of grant date |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Grant (in shares) |  |  |  |  | 93,040
2019 | Fourth anniversary of grant date |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Grant (in shares) |  |  |  |  | 93,040
2019 | Fifth anniversary of grant date |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Grant (in shares) |  |  |  |  | 1,300,496
2020 | First anniversary of grant date |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Grant (in shares) |  |  |  | 65,440 |
2021 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Grant (in shares) |  |  | 918,387 |  |
2021 | First anniversary of grant date |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Grant (in shares) |  |  | 44,093 |  |
2021 | Third anniversary of grant date |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Grant (in shares) |  |  | 874,294 |  |
2022 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Grant (in shares) |  | 907,536 |  |  |
2022 | First anniversary of grant date |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Grant (in shares) |  | 41,055 |  |  |
2022 | Third anniversary of grant date |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Grant (in shares) |  | 866,481 |  |  |
2023 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Grant (in shares) | 769,375 |  |  |  |
2023 | First anniversary of grant date |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Grant (in shares) | 32,599 |  |  |  |
2023 | Third anniversary of grant date |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Grant (in shares) | 736,776 |  |  |  |

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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Line items represent financial concepts included in a table. 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