Profit Or Loss [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|---|---|---|---|
| Profit or loss [abstract] | ||||||
| Profit (loss) [abstract] | ||||||
| Revenue |
1 , 4 87. 5
GBP
|
–
GBP
|
1 , 4 8 7. 5
GBP
|
1, 39 6 .3
GBP
|
–
GBP
|
1 , 396 . 3
GBP
|
| Profit (loss) from operating activities |
156. 2
GBP
|
10. 5
GBP
|
145 .7
GBP
|
15 5.0
GBP
|
7. 0
GBP
|
14 8.0
GBP
|
| Finance income |
2,600,000
GBP
|
–
GBP
|
2 .6
GBP
|
200,000
GBP
|
–
GBP
|
0. 2
GBP
|
| Finance costs |
13 . 9
GBP
|
–
GBP
|
13 . 9
GBP
|
1 2 . 4
GBP
|
–
GBP
|
1 2 . 4
GBP
|
| Share of profit (loss) of associates and joint ventures accounted for using equity method |
2,600,000
GBP
|
–
GBP
|
2 .6
GBP
|
3,500,000
GBP
|
–
GBP
|
3,500,000
GBP
|
| Profit (loss) before tax |
144 .9
GBP
|
1 0. 5
GBP
|
134. 4
GBP
|
1 42 . 8
GBP
|
7. 0
GBP
|
135 . 8
GBP
|
| Tax expense (income) |
30. 2
GBP
|
1,400,000
GBP
|
2 8 . 8
GBP
|
24 . 0
GBP
|
800,000
GBP
|
2 3 . 2
GBP
|
| Profit (loss) |
114,700,000
GBP
|
9 .1
GBP
|
105,600,000
GBP
|
118 .8
GBP
|
6 . 2
GBP
|
112,600,000
GBP
|
| Profit (loss), attributable to [abstract] | ||||||
| Profit (loss), attributable to owners of parent |
114. 6
GBP
|
9,100,000
GBP
|
105 .5
GBP
|
11 8 .7
GBP
|
6 . 2
GBP
|
112. 5
GBP
|
| Profit (loss), attributable to non-controlling interests |
100,000
GBP
|
–
GBP
|
100,000
GBP
|
0 .1
GBP
|
–
GBP
|
100,000
GBP
|
| Earnings per share [text block] | — | — | — | — | — | — |
| Earnings per share [abstract] | ||||||
| Earnings per share [line items] | ||||||
| Basic earnings per share [abstract] | ||||||
| Basic earnings (loss) per share | — | — |
3 1 .1
|
— | — |
33 . 2
|
| Diluted earnings per share [abstract] | ||||||
| Diluted earnings (loss) per share | — | — |
31 .0
|
— | — |
33 . 2
|