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Equity-settled share-based transactions - PHCL 2021 Plan, Narrative (Details) - Restricted share units - shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2025 | Dec. 01, 2025 | Nov. 15, 2025 | Nov. 01, 2025 | Oct. 17, 2025 | Oct. 15, 2025 | Oct. 01, 2025 | Sep. 15, 2025 | Sep. 01, 2025 | Aug. 01, 2025 | Jul. 15, 2025 | Jul. 01, 2025 | Jun. 30, 2025 | Jun. 16, 2025 | Jun. 01, 2025 | May 23, 2025 | Apr. 08, 2025 | Mar. 01, 2025 | Jan. 30, 2025 | Dec. 31, 2024 | Dec. 01, 2024 | Oct. 07, 2024 | Sep. 09, 2024 | Aug. 22, 2024 | Aug. 01, 2024 | Jul. 15, 2024 | Jul. 02, 2024 | Jun. 30, 2024 | Jun. 28, 2024 | Jun. 03, 2024 | Dec. 31, 2023 | Jun. 30, 2023 | Jun. 23, 2023 | Feb. 01, 2023 | Dec. 31, 2022 | Jun. 30, 2022 | May 18, 2022 | Jun. 16, 2021 | Dec. 31, 2021
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of restricted shares granted (in shares) | 5,643 | 339 | 43,697 | 13,935 | 22,980 | 2,237 | 342 | 9,601 | 656 | 625 | 272,332 | 604 | 60,975 | 9,352 | 538 | 57,060 | 2,500 | 40,650 | 18,484 | 15,805 | 6,696 | 30,364 | 20,576 | 26,786 | 13,971 | 20,833 | 38,800 | 75,665 | 24,590 | 176,902 | 7,928 | 2,403,529 | 16,486,108 | 66,666 | 946,330 | 2,446,557 | 144,522 |  |
2021 Share Incentive Plan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of restricted shares granted (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,933,063 | 63,934

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