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] | ||
| Adjustments for finance income (cost) |
19,000,000
GBP
|
14,100,000
GBP
|
| Cash flows from (used in) operations before changes in working capital |
150,500,000
GBP
|
133,300,000
GBP
|
| Adjustments for decrease (increase) in trade and other receivables |
500,000
GBP
|
4,000,000
GBP
|
| Adjustments for increase (decrease) in trade and other payables |
8,400,000
GBP
|
13,300,000
GBP
|
| Adjustments for increase (decrease) in employee benefit liabilities |
1,100,000
GBP
|
200,000
GBP
|
| Adjustments for amortisation expense |
1,700,000
GBP
|
3,300,000
GBP
|
| Adjustments for gain (loss) on disposals, property, plant and equipment |
3,000,000
GBP
|
1,600,000
GBP
|
| Cash flows from (used in) investing activities [abstract] | ||
| Purchase of investments other than investments accounted for using equity method |
100,000
GBP
|
5,600,000
GBP
|
| Cash flows from (used in) financing activities [abstract] | ||
| Dividends paid to equity holders of parent, classified as financing activities |
34,500,000
GBP
|
34,200,000
GBP
|
| Dividends paid to non-controlling interests, classified as financing activities |
8,100,000
GBP
|
8,100,000
GBP
|
| Proceeds from exercise of options |
200,000
GBP
|
600,000
GBP
|