Statement Of Changes In Equity [Abstract]
| Concept |
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 |
2024-01-01 to 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 |
As at 2024-12-31 |
As at 2024-12-31 |
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 |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||
| Equity | — | — |
1,600,000
GBP
|
52,200,000
GBP
|
— |
133,700,000
GBP
|
— |
18,900,000
GBP
|
16,500,000
GBP
|
— | — | — |
400,000
GBP
|
85,900,000
GBP
|
— |
237 .5
GBP
|
— |
93,400,000
GBP
|
1,600,000
GBP
|
— | — | — |
133,700,000
GBP
|
— |
18. 9
GBP
|
13. 0
GBP
|
2 .9
GBP
|
— |
223. 7
GBP
|
24,300,000
GBP
|
1,600,000
GBP
|
185,300,000
GBP
|
9 .4
GBP
|
800,000
GBP
|
3. 9
GBP
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||
| Profit (loss) |
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
— |
–
GBP
|
— | — |
147 .0
GBP
|
147 .0
GBP
|
–
GBP
|
— | — |
78. 1
GBP
|
— |
–
GBP
|
— | — |
78. 1
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
— | — | — |
–
GBP
|
— | — | — | — | — | — | — |
| Other comprehensive income |
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
— |
3,500,000
GBP
|
— | — |
300,000
GBP
|
6,300,000
GBP
|
2 .5
GBP
|
— | — |
13. 1
GBP
|
— |
–
GBP
|
— | — |
0 .1
GBP
|
–
GBP
|
12,200,000
GBP
|
— |
–
GBP
|
— | — | — |
1,000,000
GBP
|
— | — | — | — | — | — | — |
| Comprehensive income |
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
— |
3,500,000
GBP
|
— | — |
147 .3
GBP
|
153,300,000
GBP
|
2 .5
GBP
|
— | — |
91,200,000
GBP
|
— |
–
GBP
|
— | — |
78,000,000
GBP
|
–
GBP
|
12 .2
GBP
|
— |
–
GBP
|
— | — | — |
1,000,000
GBP
|
— | — | — | — | — | — | — |
| Issue of equity | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
118. 1
GBP
|
— |
–
GBP
|
— | — |
0 .8
GBP
|
109 .4
GBP
|
–
GBP
|
— |
9 .5
GBP
|
— | — | — |
–
GBP
|
— | — | — | — | — | — | — |
| Dividends recognised as distributions to owners | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
11,600,000
GBP
|
— |
–
GBP
|
— | — |
11,600,000
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
— | — | — |
–
GBP
|
— | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
–
GBP
|
–
GBP
|
— | — |
–
GBP
|
— |
–
GBP
|
— | — |
2,200,000
GBP
|
2,200,000
GBP
|
–
GBP
|
— | — |
1,000,000
GBP
|
— |
–
GBP
|
— | — |
1,000,000
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
— | — | — |
–
GBP
|
— | — | — | — | — | — | — |