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 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 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 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||||||||
| Property, plant and equipment |
51 6. 3
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
4 8 9.3
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets |
59,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
5 7. 6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill |
2 2 7. 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
2 13. 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other non-current receivables |
1. 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
1. 6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets |
1. 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
2 .2
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets |
9 23.6
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
8 7 2.7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||||||||
| Current inventories |
2 7. 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
19 . 3
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current receivables |
154 .4
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
117. 0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
36. 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
3 7. 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
2 9. 2
GBP
|
| Current assets other than non-current assets or disposal groups classified as held for sale or as held for distribution to owners |
300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
0. 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets |
2 4 4 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
1 9 7.1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Assets |
1 ,1 6 7. 7
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
1, 0 6 9 . 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||||||||
| Issued capital |
3 3 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
3 3 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings |
35 9.8
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
319 . 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium |
1 7 7.1
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
17 7.1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Treasury shares |
5. 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
6. 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves |
13 4. 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
1 3 7. 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent |
78 0.9
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
6 8 4 .7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests |
1 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
0 .7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
7 82 .0
GBP
|
13 4. 9
GBP
|
1,100,000
GBP
|
17 7.1
GBP
|
3 59.8
GBP
|
5. 2
GBP
|
3 3 .1
GBP
|
8 1. 2
GBP
|
7 80. 9
GBP
|
6 . 2
GBP
|
319. 4
GBP
|
1 3 7. 5
GBP
|
68 5.4
GBP
|
6 8 4 .7
GBP
|
1 7 7.1
GBP
|
700,000
GBP
|
23,800,000
GBP
|
3 3 .1
GBP
|
3 0 6 .7
GBP
|
0 .9
GBP
|
6 80 .5
GBP
|
3 3 .1
GBP
|
6,900,000
GBP
|
3 7. 9
GBP
|
13 2. 6
GBP
|
1 7 7. 1
GBP
|
6 8 1. 4
GBP
|
| Liabilities [abstract] | |||||||||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||||||||
| Non-current provisions |
7. 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
7. 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities |
51,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
4 7. 0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities |
12 4. 6
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
12 1. 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||||||||
| Current provisions [abstract] | |||||||||||||||||||||||||||
| Current provisions |
10. 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
14 . 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current payables |
124 . 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
11 0 . 0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities |
2 6 1 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
26 3. 0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities |
3 8 5.7
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
38 4 .4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |