Material accounting policies - Foreign currency transactions and balances (Details) - £ / $ |
12 Months Ended | |
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Dec. 31, 2025 |
Dec. 31, 2024 |
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| Foreign exchange rates | ||
| Closing rate | 0.7434 | 0.7981 |
| Average rate | 0.7584 | 0.7825 |
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- Definition The average exchange rate used by the entity. Exchange rate is the ratio of exchange for two currencies. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The spot exchange rate at the end of the reporting period. Exchange rate is the ratio of exchange for two currencies. Spot exchange rate is the exchange rate for immediate delivery. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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