Statement Of Changes In Equity [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||
| Statement of changes in equity [line items] | ||||||||||
| Increase (decrease) through exercise of options, equity | — | — | — | — | — |
–
GBP
|
–
GBP
|
1,600,000
GBP
|
–
GBP
|
1,600,000
GBP
|
| Increase (decrease) through transactions with owners, equity |
900,000
GBP
|
8,600,000
GBP
|
1,500,000
GBP
|
9,200,000
GBP
|
–
GBP
|
–
GBP
|
100,000
GBP
|
2,800,000
GBP
|
200,000
GBP
|
2,900,000
GBP
|