Statement Of Comprehensive Income [Abstract]
| Concept |
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 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||
| Profit (loss) |
147 .0
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
147 .0
GBP
|
–
GBP
|
–
GBP
|
78. 1
GBP
|
–
GBP
|
78. 1
GBP
|
–
GBP
|
–
GBP
|
| Other comprehensive income [abstract] | ||||||||||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract] | ||||||||||||||
| Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans |
0 .3
GBP
|
— | — | — | — | — | — | — | — |
0 .1
GBP
|
— | — | — | — |
| Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] | ||||||||||||||
| Exchange differences on translation [abstract] | ||||||||||||||
| Gains (losses) on exchange differences on translation of foreign operations, net of tax |
1,500,000
GBP
|
— | — | — | — | — | — | — | — |
12,200,000
GBP
|
— | — | — | — |
| Hedges of net investment in foreign operations [abstract] | ||||||||||||||
| Gains (losses) on hedges of net investments in foreign operations, net of tax |
2,000,000
GBP
|
— | — | — | — | — | — | — | — |
–
GBP
|
— | — | — | — |
| Other comprehensive income |
6,300,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
2 .5
GBP
|
3,500,000
GBP
|
300,000
GBP
|
–
GBP
|
–
GBP
|
13. 1
GBP
|
1,000,000
GBP
|
0 .1
GBP
|
–
GBP
|
12,200,000
GBP
|
| Comprehensive income |
153,300,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
2 .5
GBP
|
3,500,000
GBP
|
147 .3
GBP
|
–
GBP
|
–
GBP
|
91,200,000
GBP
|
1,000,000
GBP
|
78,000,000
GBP
|
–
GBP
|
12 .2
GBP
|
| Comprehensive income attributable to [abstract] | ||||||||||||||
| Comprehensive income, attributable to owners of parent |
153,300,000
GBP
|
— | — | — | — | — | — | — | — |
91,200,000
GBP
|
— | — | — | — |