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 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 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 |
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 |
4 0 .9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
3 5 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets |
6,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
5,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||||||||||||||
| Cash and cash equivalents |
3 , 0 4 4 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
2 ,736.7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2 , 370. 6
GBP
|
— |
| Assets |
2 7, 5 6 6 . 7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
2 4, 5 3 1 .9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||||||||||||||
| Issued capital |
4,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
4,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings |
3,389 .4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
3 , 2 1 5 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium |
2 .4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
0. 7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves |
1, 195.1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
1 ,1 9 5 .9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent |
2, 201.0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
2 , 0 2 4 .4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
2, 201.0
GBP
|
1,355. 1
GBP
|
–
GBP
|
2 .4
GBP
|
13,200,000
GBP
|
3,389,400,000
GBP
|
2 . 2
GBP
|
4. 3
GBP
|
1. 3
GBP
|
0. 3
GBP
|
150,000,000
GBP
|
3. 5
GBP
|
3 , 2 1 5 .1
GBP
|
2,024. 4
GBP
|
0. 6
GBP
|
150,000,000
GBP
|
1,3 55 .3
GBP
|
700,000
GBP
|
1 3 .4
GBP
|
1 .1
GBP
|
4,500,000
GBP
|
–
GBP
|
1,608 .6
GBP
|
60,000,000
GBP
|
1, 3 5 9. 8
GBP
|
–
GBP
|
1,000,000
GBP
|
4. 0
GBP
|
–
GBP
|
7. 8
GBP
|
1, 35 5. 3
GBP
|
1,67 6.9
GBP
|
1,000,000
GBP
|
| Liabilities [abstract] | |||||||||||||||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||||||||||||||
| Deferred tax liabilities |
22,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
39 .8
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities |
25,365,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
22,507 .5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities |
2 7, 5 6 6 . 7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
2 4, 5 3 1 .9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |