Statement Of Financial Position [Abstract]
| Concept |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — |
88,300,000
GBP
|
73,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Trade and other non-current receivables | — | — | — | — | — | — |
33,900,000
GBP
|
23,200,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — | — |
1,791,000,000
GBP
|
582,200,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||
| Trade and other current receivables | — | — | — | — | — | — |
139,500,000
GBP
|
118,200,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Other current financial assets | — | — | — | — | — | — |
–
GBP
|
7,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — |
90,800,000
GBP
|
238,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Current assets | — | — | — | — | — | — |
2,303,900,000
GBP
|
1,795,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — |
4,094,900,000
GBP
|
2,377,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||
| Issued capital | — | — | — | — | — | — |
100,000
GBP
|
100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — |
557,100,000
GBP
|
418,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — | — |
375,100,000
GBP
|
289,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — | — | — |
51,100,000
GBP
|
12,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — | — |
983,400,000
GBP
|
721,200,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — | — |
207,800,000
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity |
557,100,000
GBP
|
375,100,000
GBP
|
100,000
GBP
|
207,800,000
GBP
|
983,400,000
GBP
|
51,100,000
GBP
|
1,191,200,000
GBP
|
721,200,000
GBP
|
418,700,000
GBP
|
12,600,000
GBP
|
–
GBP
|
289,800,000
GBP
|
100,000
GBP
|
721,200,000
GBP
|
772,700,000
GBP
|
9,100,000
GBP
|
289,800,000
GBP
|
473,700,000
GBP
|
100,000
GBP
|
| Liabilities [abstract] | |||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||
| Trade and other non-current payables | — | — | — | — | — | — |
35,600,000
GBP
|
13,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — | — | — |
44,700,000
GBP
|
33,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Other non-current financial liabilities | — | — | — | — | — | — |
159,400,000
GBP
|
50,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — | — |
2,495,600,000
GBP
|
1,318,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||
| Trade and other current payables | — | — | — | — | — | — |
157,100,000
GBP
|
132,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — | — |
408,100,000
GBP
|
337,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — | — |
2,903,700,000
GBP
|
1,656,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |