Statement Of Comprehensive Income [Abstract]
| Concept |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||||||||||
| Profit (loss) |
–
GBP
|
231 .7
GBP
|
2 31. 1
GBP
|
600,000
GBP
|
–
GBP
|
–
GBP
|
231 . 1
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
231,100,000
GBP
|
–
GBP
|
800,000
GBP
|
–
GBP
|
15 .0
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
15,000,000
GBP
|
–
GBP
|
–
GBP
|
15. 8
GBP
|
15,000,000
GBP
|
| Other comprehensive income [abstract] | ||||||||||||||||||||||||
| Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract] | ||||||||||||||||||||||||
| Other comprehensive income, net of tax, gains (losses) on revaluation of property, plant and equipment, right-of-use assets and intangible assets | — |
200,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
–
GBP
|
— |
| Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] | ||||||||||||||||||||||||
| Exchange differences on translation [abstract] | ||||||||||||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations | — |
500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
600,000
GBP
|
— |
| Other comprehensive income |
–
GBP
|
700,000
GBP
|
0. 5
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
700,000
GBP
|
200,000
GBP
|
–
GBP
|
–
GBP
|
700,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
600,000
GBP
|
–
GBP
|
–
GBP
|
500,000
GBP
|
–
GBP
|
600,000
GBP
|
–
GBP
|
–
GBP
|
0. 6
GBP
|
100,000
GBP
|
| Comprehensive income |
–
GBP
|
2 31 .0
GBP
|
230. 6
GBP
|
600,000
GBP
|
–
GBP
|
–
GBP
|
230,400,000
GBP
|
200,000
GBP
|
–
GBP
|
–
GBP
|
230,400,000
GBP
|
–
GBP
|
800,000
GBP
|
–
GBP
|
15 .6
GBP
|
–
GBP
|
–
GBP
|
500,000
GBP
|
–
GBP
|
15,600,000
GBP
|
–
GBP
|
–
GBP
|
16 . 4
GBP
|
15,100,000
GBP
|
| Comprehensive income attributable to [abstract] | ||||||||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — |
2 30.4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
15. 6
GBP
|
— |
| Comprehensive income, attributable to non-controlling interests | — |
0. 6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
0. 8
GBP
|
— |