Statement Of Changes In Equity [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 |
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 changes in equity [abstract] | ||||||||||||
| Statement of changes in equity [line items] | ||||||||||||
| Dividends recognised as distributions to non-controlling interests | — | — | — | — | — | — |
200,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
200,000
GBP
|
–
GBP
|
| Increase (decrease) through acquisition of subsidiary, equity | — | — | — | — | — | — |
1,600,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
1,600,000
GBP
|
–
GBP
|
| Increase (decrease) through transactions with owners, equity |
–
GBP
|
–
GBP
|
143,400,000
GBP
|
–
GBP
|
143,400,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
122,200,000
GBP
|
122,200,000
GBP
|