Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2024-12-31 |
As at 2024-12-31 |
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2024-01-01 to 2024-12-31 |
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As at 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
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2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
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| Disclosure of fair value measurement [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of assets [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of assets [abstract] | |||||||||||||||||||||||||||||||||
| Disclosure of fair value measurement of assets [line items] | |||||||||||||||||||||||||||||||||
| Assets | — | — | — | — | — | — | — | — | — |
169,700,000
GBP
|
— | — | — |
153,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, assets [abstract] | |||||||||||||||||||||||||||||||||
| Changes in fair value measurement, assets [abstract] | |||||||||||||||||||||||||||||||||
| Gains (losses) recognised in profit or loss, fair value measurement, assets [abstract] | |||||||||||||||||||||||||||||||||
| Gains (losses) recognised in profit or loss excluding exchange differences, fair value measurement, assets | — | — | — | — | — | — |
4,800,000
GBP
|
— | — | — |
–
GBP
|
4,800,000
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — |
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of liabilities [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of liabilities [abstract] | |||||||||||||||||||||||||||||||||
| Disclosure of fair value measurement of liabilities [line items] | |||||||||||||||||||||||||||||||||
| Liabilities | — | — | — | — | — | — | — | — | — |
182,600,000
GBP
|
— | — | — |
166,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, liabilities [abstract] | |||||||||||||||||||||||||||||||||
| Disclosure of fair value measurement of equity [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of equity [abstract] | |||||||||||||||||||||||||||||||||
| Disclosure of fair value measurement of equity [line items] | |||||||||||||||||||||||||||||||||
| Equity |
200,000
GBP
|
316,000,000
GBP
|
115,100,000
GBP
|
23,300,000
GBP
|
11,000,000
GBP
|
1,900,000
GBP
|
— |
2,100,000
GBP
|
173,400,000
GBP
|
12,900,000
GBP
|
— | — | — |
12,600,000
GBP
|
321,900,000
GBP
|
200,000
GBP
|
2,400,000
GBP
|
5,100,000
GBP
|
115,100,000
GBP
|
23,300,000
GBP
|
173,400,000
GBP
|
7,500,000
GBP
|
— | — |
9,200,000
GBP
|
1,800,000
GBP
|
300,000
GBP
|
115,100,000
GBP
|
200,000
GBP
|
322,700,000
GBP
|
23,300,000
GBP
|
8,900,000
GBP
|
173,400,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |