Statement Of Changes In Equity [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 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 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||
| Equity | — |
94, 271
GBP
|
519,408,000
GBP
|
— | — | — |
976 ,78 4
GBP
|
— |
1 03
GBP
|
365,000
GBP
|
— |
524 ,572
GBP
|
— |
160,999,000
GBP
|
153,999,000
GBP
|
— | — | — | — |
930,4 95
GBP
|
203,739,000
GBP
|
456,091,000
GBP
|
100,000
GBP
|
328,000
GBP
|
524,572,000
GBP
|
— | — | — |
292,172,000
GBP
|
243,000
GBP
|
60,948,000
GBP
|
54,568,000
GBP
|
86 ,854
GBP
|
2 97
GBP
|
211,158,000
GBP
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||
| Profit (loss) |
63, 317
GBP
|
— | — |
63, 317
GBP
|
—
GBP
|
—
GBP
|
— |
—
GBP
|
— | — |
—
GBP
|
— |
—
GBP
|
— | — |
—
GBP
|
163,928,000
GBP
|
163,928,000
GBP
|
—
GBP
|
— | — | — | — | — | — |
—
GBP
|
—
GBP
|
—
GBP
|
— | — | — | — | — | — | — |
| Comprehensive income |
63,280,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
163,897,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
5,693,000
GBP
|
— | — |
—
GBP
|
—
GBP
|
—
GBP
|
— |
—
GBP
|
— | — |
5,693,000
GBP
|
— |
—
GBP
|
— | — |
—
GBP
|
33,818,000
GBP
|
—
GBP
|
—
GBP
|
— | — | — | — | — | — |
33,818,000
GBP
|
—
GBP
|
—
GBP
|
— | — | — | — | — | — | — |