Statement Of Financial Position [Abstract]
| Concept |
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 |
As at 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 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||
| Non-current assets | — | — |
1,752,509,000
GBP
|
— | — | — | — | — |
1,678,008,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||
| Cash and cash equivalents | — | — |
52,315,000
GBP
|
— | — | — | — | — |
94,280,000
GBP
|
— | — | — | — | — | — | — | — |
21,648,000
GBP
|
— | — | — |
| Current assets | — | — |
479,240,000
GBP
|
— | — | — | — | — |
481,745,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — |
11,443,000
GBP
|
— | — | — | — | — |
11,382,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — |
372,224,000
GBP
|
— | — | — | — | — |
359,971,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
1,175,712,000
GBP
|
23,865,000
GBP
|
2,089,965,000
GBP
|
372,224,000
GBP
|
1,258,000
GBP
|
11,443,000
GBP
|
505,463,000
GBP
|
1,248,000
GBP
|
2,005,724,000
GBP
|
712,188,000
GBP
|
885,821,000
GBP
|
35,114,000
GBP
|
359,971,000
GBP
|
11,382,000
GBP
|
240,712,000
GBP
|
10,400,000
GBP
|
219,722,000
GBP
|
1,291,016,000
GBP
|
1,248,000
GBP
|
19,946,000
GBP
|
798,988,000
GBP
|