Statement Of Changes In Equity [Abstract]
| Concept |
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 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||
| Dividends recognised as distributions to non-controlling interests | — | — | — | — | — | — | — | — | — | — |
6,600,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
6,600,000
GBP
|
–
GBP
|
–
GBP
|
| Increase (decrease) through exercise of warrants, equity |
–
GBP
|
–
GBP
|
–
GBP
|
15,100,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
100,000
GBP
|
30,000,000
GBP
|
14,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through transactions with owners, equity |
–
GBP
|
100,000
GBP
|
–
GBP
|
15,200,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
100,000
GBP
|
37,900,000
GBP
|
22,700,000
GBP
|
917,800,000
GBP
|
–
GBP
|
144,000,000
GBP
|
5,800,000
GBP
|
–
GBP
|
9,400,000
GBP
|
–
GBP
|
6,600,000
GBP
|
755,900,000
GBP
|
9,300,000
GBP
|
| Reduction of issued capital | — | — | — | — | — | — | — | — | — | — |
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
9,300,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
9,300,000
GBP
|