Statement Of Comprehensive Income [Abstract]
| Concept |
2024-01-01 to 2024-12-29 |
2024-01-01 to 2024-12-29 |
2024-01-01 to 2024-12-29 |
2024-01-01 to 2024-12-29 |
2024-01-01 to 2024-12-29 |
2024-01-01 to 2024-12-29 |
2024-01-01 to 2024-12-29 |
2024-01-01 to 2024-12-29 |
2024-01-01 to 2024-12-29 |
2024-01-01 to 2024-12-29 |
2023-01-02 to 2023-12-31 |
2023-01-02 to 2023-12-31 |
2023-01-02 to 2023-12-31 |
2023-01-02 to 2023-12-31 |
2023-01-02 to 2023-12-31 |
2023-01-02 to 2023-12-31 |
2023-01-02 to 2023-12-31 |
2023-01-02 to 2023-12-31 |
2023-01-02 to 2023-12-31 |
2023-01-02 to 2023-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||||||
| Profit (loss) |
2,300,000
GBP
|
3 9.3
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
39. 3
GBP
|
41,600,000
GBP
|
3 6.4
GBP
|
–
GBP
|
1,600,000
GBP
|
3 6.4
GBP
|
38 .0
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
| Other comprehensive income [abstract] | ||||||||||||||||||||
| 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 |
300,000
GBP
|
9,100,000
GBP
|
9,100,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
9,400,000
GBP
|
–
GBP
|
–
GBP
|
0 .1
GBP
|
600,000
GBP
|
700,000
GBP
|
–
GBP
|
–
GBP
|
600,000
GBP
|
–
GBP
|
–
GBP
|
| Cash flow hedges [abstract] | ||||||||||||||||||||
| Gains (losses) on cash flow hedges, net of tax | — | — | — | — | — | — | — | — | — |
6,200,000
GBP
|
–
GBP
|
–
GBP
|
100,000
GBP
|
6,600,000
GBP
|
6 .7
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
6,600,000
GBP
|
| Reclassification adjustments on cash flow hedges, net of tax | — | — | — | — | — | — | — | — | — |
1,400,000
GBP
|
— | — | — | — |
–
GBP
|
— | — | — | — | — |
| Other comprehensive income that will be reclassified to profit or loss, net of tax | — | — | — | — | — | — | — | — | — |
4 .8
GBP
|
— | — | — | — |
6,700,000
GBP
|
— | — | — | — | — |
| Other comprehensive income | — | — | — | — | — | — | — | — | — |
14. 2
GBP
|
— | — | — | — |
6,000,000
GBP
|
— | — | — | — | — |
| Comprehensive income |
2 .0
GBP
|
25,400,000
GBP
|
9,100,000
GBP
|
–
GBP
|
–
GBP
|
4 . 8
GBP
|
–
GBP
|
–
GBP
|
3 9.3
GBP
|
2 7. 4
GBP
|
36 .4
GBP
|
–
GBP
|
1,600,000
GBP
|
42,400,000
GBP
|
44 .0
GBP
|
–
GBP
|
–
GBP
|
600,000
GBP
|
–
GBP
|
6,600,000
GBP
|
| Comprehensive income attributable to [abstract] | ||||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — | — | — | — | — | — | — |
25,400,000
GBP
|
— | — | — | — |
42 .4
GBP
|
— | — | — | — | — |
| Comprehensive income, attributable to non-controlling interests | — | — | — | — | — | — | — | — | — |
2,000,000
GBP
|
— | — | — | — |
1,600,000
GBP
|
— | — | — | — | — |