Statement Of Financial Position [Abstract]
| Concept |
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 |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||||
| Property, plant and equipment |
2 ,388 .0
GBP
|
— | — | — | — | — | — | — | — | — | — |
2 , 31 0 .7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets |
13 8 . 3
GBP
|
— | — | — | — | — | — | — | — | — | — |
119 . 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill |
424 . 2
GBP
|
— | — | — | — | — | — | — | — | — | — |
416 .3
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill |
142 . 3
GBP
|
— | — | — | — | — | — | — | — | — | — |
18 8 .6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method |
6,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
5,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets |
3 7. 3
GBP
|
— | — | — | — | — | — | — | — | — | — |
2 8 .7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets |
3 , 5 9 7. 2
GBP
|
— | — | — | — | — | — | — | — | — | — |
3, 476 . 0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||
| Current inventories |
3 4 8 .1
GBP
|
— | — | — | — | — | — | — | — | — | — |
1 9 9 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
238 .0
GBP
|
— | — | — | — | — | — | — | — | — | — |
3 17. 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
28 9. 8
GBP
|
| Current assets |
2 , 7 9 7. 2
GBP
|
— | — | — | — | — | — | — | — | — | — |
2 ,3 4 8. 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||
| Issued capital |
4 7. 9
GBP
|
— | — | — | — | — | — | — | — | — | — |
4 7. 7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings |
193 . 8
GBP
|
— | — | — | — | — | — | — | — | — | — |
19 8 .3
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Share premium |
43 3. 3
GBP
|
— | — | — | — | — | — | — | — | — | — |
432 . 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves |
7 4 7. 7
GBP
|
— | — | — | — | — | — | — | — | — | — |
70 6.0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent |
1, 31 0 . 8
GBP
|
— | — | — | — | — | — | — | — | — | — |
1, 28 5. 3
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests |
13 . 4
GBP
|
— | — | — | — | — | — | — | — | — | — |
21. 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
1,3 24. 2
GBP
|
7 4 7. 7
GBP
|
13 . 4
GBP
|
43 3. 3
GBP
|
193 . 8
GBP
|
4 7. 9
GBP
|
4 0 .1
GBP
|
15 2 . 0
GBP
|
19 8 . 3
GBP
|
78 .5
GBP
|
706. 0
GBP
|
1, 3 0 6 . 8
GBP
|
1 7 7. 4
GBP
|
43 2. 2
GBP
|
21. 5
GBP
|
4 7. 7
GBP
|
15 3. 4
GBP
|
–
GBP
|
8 7. 2
GBP
|
4 7. 5
GBP
|
6 9 7. 3
GBP
|
4 30.0
GBP
|
76. 0
GBP
|
1,3 39. 4
GBP
|
| Liabilities [abstract] | ||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||||||||
| Non-current provisions |
58 .6
GBP
|
— | — | — | — | — | — | — | — | — | — |
8 6. 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities |
1 41 . 6
GBP
|
— | — | — | — | — | — | — | — | — | — |
225,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities |
2 ,4 6 2 . 6
GBP
|
— | — | — | — | — | — | — | — | — | — |
2, 28 4 .7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||||
| Current liabilities |
2 , 6 0 7. 6
GBP
|
— | — | — | — | — | — | — | — | — | — |
2 , 2 3 2 . 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |