Statement Of Cash Flows [Abstract]
| Concept |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||
| Cash flows from (used in) operating activities [abstract] | ||||
| Cash flows from (used in) operations | — |
298,305,000
GBP
|
— |
334,281,000
GBP
|
| Interest paid, classified as operating activities | — |
22,462,000
GBP
|
— |
23,073,000
GBP
|
| Income taxes paid (refund), classified as operating activities | — |
29,027,000
GBP
|
— |
38,391,000
GBP
|
| Cash flows from (used in) operating activities | — |
246,816,000
GBP
|
— |
272,817,000
GBP
|
| Cash flows from (used in) investing activities [abstract] | ||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — |
400,000,000
GBP
|
— |
350,000,000
GBP
|
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
67,245,000
GBP
|
— |
27,908,000
GBP
|
| Proceeds from sales of property, plant and equipment, classified as investing activities | — |
1,273,000
GBP
|
— |
1,429,000
GBP
|
| Purchase of property, plant and equipment, classified as investing activities | — |
39,571,000
GBP
|
— |
48,816,000
GBP
|
| Purchase of intangible assets, classified as investing activities | — |
7,275,000
GBP
|
— |
3,963,000
GBP
|
| Interest received, classified as investing activities | — |
23,441,000
GBP
|
— |
24,199,000
GBP
|
| Cash flows from (used in) investing activities | — |
37,097,000
GBP
|
— |
255,436,000
GBP
|
| Cash flows from (used in) financing activities [abstract] | ||||
| Proceeds from issuing shares | — |
283,000
GBP
|
— |
1,916,000
GBP
|
| Payments to acquire or redeem entity's shares | — |
81,085,000
GBP
|
— |
159,458,000
GBP
|
| Repayments of borrowings, classified as financing activities | — |
8,156,000
GBP
|
— |
44,494,000
GBP
|
| Payments of lease liabilities, classified as financing activities | — |
71,640,000
GBP
|
— |
67,680,000
GBP
|
| Dividends paid, classified as financing activities | — |
73,190,000
GBP
|
— |
72,569,000
GBP
|
| Cash flows from (used in) financing activities | — |
233,788,000
GBP
|
— |
342,285,000
GBP
|
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
24,069,000
GBP
|
— |
324,904,000
GBP
|
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||
| Effect of exchange rate changes on cash and cash equivalents | — |
8,815,000
GBP
|
— |
2,878,000
GBP
|
| Cash and cash equivalents |
359,430,000
GBP
|
— |
383,939,000
GBP
|
— |