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 |
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 |
2023-01-01 to 2023-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||
| Profit (loss) |
–
GBP
|
25,900,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
2 5.9
GBP
|
–
GBP
|
–
GBP
|
3 1.1
GBP
|
–
GBP
|
–
GBP
|
3 1.1
GBP
|
–
GBP
|
–
GBP
|
| Other comprehensive income [abstract] | ||||||||||||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract] | ||||||||||||||||
| Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans |
–
GBP
|
4 . 8
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
4 . 8
GBP
|
–
GBP
|
–
GBP
|
2. 6
GBP
|
–
GBP
|
–
GBP
|
2,600,000
GBP
|
–
GBP
|
–
GBP
|
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||||||||
| Exchange differences on translation [abstract] | ||||||||||||||||
| Gains (losses) on exchange differences on translation of foreign operations, before tax |
–
GBP
|
4,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
4,000,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
16. 9
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
16 . 9
GBP
|
| Cash flow hedges [abstract] | ||||||||||||||||
| Gains (losses) on cash flow hedges, before tax | — |
2 .8
GBP
|
— | — | — | — | — | — | — | — |
2,700,000
GBP
|
— | — | — | — | — |
| Reclassification adjustments on cash flow hedges, before tax | — |
0 .1
GBP
|
— | — | — | — | — | — | — | — |
900,000
GBP
|
— | — | — | — | — |
| Other comprehensive income, before tax, cash flow hedges |
–
GBP
|
2 . 9
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
2 . 9
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
3 .6
GBP
|
–
GBP
|
3,600,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract] | ||||||||||||||||
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss | — |
1 .1
GBP
|
— | — | — | — | — | — | — | — |
600,000
GBP
|
— | — | — | — | — |
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract] | ||||||||||||||||
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | — |
800,000
GBP
|
— | — | — | — | — | — | — | — |
900,000
GBP
|
— | — | — | — | — |
| Other comprehensive income | — |
1 . 8
GBP
|
— | — | — | — | — | — | — | — |
16 . 2
GBP
|
— | — | — | — | — |
| Comprehensive income |
–
GBP
|
2 4 .1
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
2 .1
GBP
|
4 .0
GBP
|
2 2 . 2
GBP
|
–
GBP
|
–
GBP
|
1 4.9
GBP
|
–
GBP
|
2,700,000
GBP
|
2 9 .1
GBP
|
–
GBP
|
16 . 9
GBP
|
| Comprehensive income attributable to [abstract] | ||||||||||||||||
| Comprehensive income, attributable to owners of parent | — |
2 4 .1
GBP
|
— | — | — | — | — | — | — | — |
1 4.9
GBP
|
— | — | — | — | — |