Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2023-12-31 |
As at 2023-12-31 |
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As at 2023-12-31 |
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As at 2022-12-31 |
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As at 2022-12-31 |
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As at 2021-12-31 |
As at 2021-12-31 |
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As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
824,438,000
GBP
|
— | — | — | — | — | — | — |
779,482,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, assets [abstract] | ||||||||||||||||||||||||
| 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 |
186,716,000
GBP
|
— | — | — | — | — | — | — |
176,818,000
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 |
637,722,000
GBP
|
309,278,000
GBP
|
225,177,000
GBP
|
257,000
GBP
|
25,034,000
GBP
|
32,408,000
GBP
|
45,667,000
GBP
|
99,000
GBP
|
602,664,000
GBP
|
174,520,000
GBP
|
24,688,000
GBP
|
257,000
GBP
|
325,277,000
GBP
|
50,000
GBP
|
32,305,000
GBP
|
45,667,000
GBP
|
24,000
GBP
|
275,556,000
GBP
|
257,000
GBP
|
199,629,000
GBP
|
577,984,000
GBP
|
45,667,000
GBP
|
24,627,000
GBP
|
32,272,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |