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Related party transactions (Details) - HM Treasury | Jul. 12, 2024 | Jun. 30, 2024 | Dec. 31, 2023
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Related party transactions |  |  |
Proportion of ordinary shares in reporting entity held |  | 20.92% | 37.97%
Changes in details regarding ownership of entity |  |  |
Related party transactions |  |  |
Proportion of ordinary shares held | 19.97% |  |
Maximum | Changes in details regarding ownership of entity |  |  |
Related party transactions |  |  |
Proportion of ordinary shares held | 20.00% |  |

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Definition Proportion of ordinary shares in reporting entity held + References No definition available. + Details
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- Details
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