Statement Of Cash Flows [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
2023-01-01 to 2023-12-31 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) operating activities [abstract] | ||
| Income taxes paid, classified as operating activities |
122,300,000
GBP
|
112,400,000
GBP
|
| Cash flows from (used in) investing activities [abstract] | ||
| Payments for development project expenditure |
18,200,000
GBP
|
11,200,000
GBP
|
| Purchase of investments other than investments accounted for using equity method |
6,700,000
GBP
|
4,300,000
GBP
|
| Cash flows from (used in) financing activities [abstract] | ||
| Dividends paid to equity holders of parent, classified as financing activities |
248,200,000
GBP
|
176,600,000
GBP
|
| Dividends paid to non-controlling interests, classified as financing activities |
31,000,000
GBP
|
16,000,000
GBP
|
| Payments for debt issue costs |
21,800,000
GBP
|
1,200,000
GBP
|