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 |
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
|
–
GBP
|
410 .0
GBP
|
410. 0
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
345. 3
GBP
|
345. 3
GBP
|
| Other comprehensive income [abstract] | ||||||||||||||||||||||
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||||||||||||||
| Exchange differences on translation [abstract] | ||||||||||||||||||||||
| Other comprehensive income, before tax, exchange differences on translation of foreign operations | — | — |
0. 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
0 .1
GBP
|
— |
| Financial assets measured at fair value through other comprehensive income [abstract] | ||||||||||||||||||||||
| Other comprehensive income, before tax, financial assets measured at fair value through other comprehensive income | — | — |
300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1 .1
GBP
|
— |
| Other comprehensive income, before tax |
–
GBP
|
–
GBP
|
0 .6
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
0. 4
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
0. 2
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
0 .1
GBP
|
–
GBP
|
0 .9
GBP
|
–
GBP
|
1,000,000
GBP
|
–
GBP
|
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract] | ||||||||||||||||||||||
| Income tax relating to financial assets measured at fair value through other comprehensive income included in other comprehensive income | — | — |
100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
500,000
GBP
|
— |
| Other comprehensive income | — | — |
0. 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
500,000
GBP
|
— |
| Comprehensive income |
–
GBP
|
–
GBP
|
4 0 9. 5
GBP
|
410 .0
GBP
|
–
GBP
|
–
GBP
|
0 . 3
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
0. 2
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
0 .1
GBP
|
–
GBP
|
0 .4
GBP
|
–
GBP
|
3 44. 8
GBP
|
345. 3
GBP
|
| Comprehensive income attributable to [abstract] | ||||||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — |
4 0 9. 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
3 4 0 .1
GBP
|
— |
| Comprehensive income, attributable to non-controlling interests | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
4,700,000
GBP
|
— |