Statement Of Changes In Equity [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||
| Equity | — | — | — |
3 76 .7
GBP
|
14 . 8
GBP
|
— |
41. 9
GBP
|
77. 4
GBP
|
1 0 . 5
GBP
|
— | — | — | — |
3 8. 2
GBP
|
7. 8
GBP
|
46 9. 9
GBP
|
— | — |
4 5 7.1
GBP
|
3 6 8 .0
GBP
|
— | — | — |
14 . 8
GBP
|
— |
41. 9
GBP
|
73 . 4
GBP
|
— |
1 2.8
GBP
|
3 6 .1
GBP
|
7. 9
GBP
|
— |
4 4 9. 4
GBP
|
14 . 8
GBP
|
6. 4
GBP
|
3 4 6 .5
GBP
|
41. 9
GBP
|
9 0. 3
GBP
|
11 . 7
GBP
|
38,800,000
GBP
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||
| Profit (loss) |
–
GBP
|
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
— | — | — |
2 5.9
GBP
|
25,900,000
GBP
|
–
GBP
|
–
GBP
|
— | — | — |
–
GBP
|
3 1.1
GBP
|
— | — |
3 1.1
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
— | — |
–
GBP
|
— | — | — |
–
GBP
|
— | — | — | — | — | — | — | — |
| Other comprehensive income | — | — | — | — | — | — | — | — | — | — |
1 . 8
GBP
|
— | — | — | — | — | — |
16 . 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income |
–
GBP
|
–
GBP
|
–
GBP
|
— | — |
4 .0
GBP
|
— | — | — |
2 2 . 2
GBP
|
2 4 .1
GBP
|
–
GBP
|
2 .1
GBP
|
— | — | — |
–
GBP
|
1 4.9
GBP
|
— | — |
2 9 .1
GBP
|
–
GBP
|
16 . 9
GBP
|
— |
–
GBP
|
— | — |
–
GBP
|
— | — | — |
2,700,000
GBP
|
— | — | — | — | — | — | — | — |
| Dividends recognised as distributions to owners |
–
GBP
|
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
— | — | — |
1 0 .1
GBP
|
10 .1
GBP
|
–
GBP
|
–
GBP
|
— | — | — |
–
GBP
|
6,600,000
GBP
|
— | — |
6,600,000
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
— | — |
–
GBP
|
— | — | — |
–
GBP
|
— | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
–
GBP
|
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
— | — | — |
–
GBP
|
4. 5
GBP
|
4 .5
GBP
|
–
GBP
|
— | — | — |
–
GBP
|
4 .1
GBP
|
— | — |
–
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
— | — |
4 .1
GBP
|
— | — | — |
–
GBP
|
— | — | — | — | — | — | — | — |