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 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 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 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — | — |
12,335,000
GBP
|
9,874,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — | — | — | — |
45,347,000
GBP
|
39,785,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — | — | — | — |
592,187,000
GBP
|
522,964,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — | — | — | — |
170,821,000
GBP
|
147,302,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method | — | — | — | — | — | — | — |
3,788,000
GBP
|
3,365,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — | — |
1,012,000
GBP
|
266,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — | — |
89,232,000
GBP
|
97,222,000
GBP
|
— | — | — | — | — | — | — |
48,861,000
GBP
|
— | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — | — |
1,019,584,000
GBP
|
905,099,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||
| Issued capital | — | — | — | — | — | — | — |
1,688,000
GBP
|
1,655,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — | — |
50,310,000
GBP
|
77,144,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — | — | — |
406,648,000
GBP
|
392,213,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Treasury shares | — | — | — | — | — | — | — |
5,760,000
GBP
|
3,912,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — | — | — | — |
341,000
GBP
|
749,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
50,310,000
GBP
|
406,648,000
GBP
|
1,688,000
GBP
|
15,139,000
GBP
|
5,760,000
GBP
|
341,000
GBP
|
65,570,000
GBP
|
533,936,000
GBP
|
503,876,000
GBP
|
77,144,000
GBP
|
749,000
GBP
|
392,213,000
GBP
|
1,655,000
GBP
|
8,941,000
GBP
|
3,912,000
GBP
|
28,584,000
GBP
|
400,217,000
GBP
|
–
GBP
|
290,435,000
GBP
|
71,648,000
GBP
|
3,697,000
GBP
|
1,491,000
GBP
|
15,979,000
GBP
|
24,361,000
GBP
|
| Liabilities [abstract] | ||||||||||||||||||||||||
| Deferred tax liabilities | — | — | — | — | — | — | — |
6,510,000
GBP
|
9,474,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — | — | — |
1,019,584,000
GBP
|
905,099,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |