Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
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 | — | — | — | — |
373 .2
GBP
|
— |
3 84.0
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 | — | — | — | — |
126. 4
GBP
|
— |
100,000,000
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 |
2 9 3 .1
GBP
|
0. 4
GBP
|
14 . 2
GBP
|
8 4 .9
GBP
|
246,800,000
GBP
|
24 .0
GBP
|
28 4. 0
GBP
|
2 9 3 .1
GBP
|
22,200,000
GBP
|
4 8 .6
GBP
|
400,000
GBP
|
16,900,000
GBP
|
35 . 6
GBP
|
28 8 .0
GBP
|
11 .1
GBP
|
293,000,000
GBP
|
1 9 .1
GBP
|
400,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |