Statement Of Cash Flows [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Cash flows from (used in) operations |
16,762,000
GBP
|
— |
11,956,000
GBP
|
— | — |
| Interest received, classified as operating activities |
554,000
GBP
|
— |
537,000
GBP
|
— | — |
| Income taxes paid (refund), classified as operating activities |
940,000
GBP
|
— |
4,285,000
GBP
|
— | — |
| Cash flows from (used in) operating activities |
17,234,000
GBP
|
— |
19,352,000
GBP
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||
| Other inflows (outflows) of cash, classified as investing activities |
45,000
GBP
|
— |
14,000
GBP
|
— | — |
| Cash flows from (used in) investing activities |
96,693,000
GBP
|
— |
107,822,000
GBP
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||
| Payments to acquire or redeem entity's shares |
1,564,000
GBP
|
— |
—
GBP
|
— | — |
| Proceeds from borrowings, classified as financing activities |
5,000,000
GBP
|
— |
15,000,000
GBP
|
— | — |
| Repayments of borrowings, classified as financing activities |
5,000,000
GBP
|
— |
71,404,000
GBP
|
— | — |
| Dividends paid, classified as financing activities |
58,364,000
GBP
|
— |
53,487,000
GBP
|
— | — |
| Cash flows from (used in) financing activities |
61,388,000
GBP
|
— |
109,936,000
GBP
|
— | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes |
18,071,000
GBP
|
— |
21,466,000
GBP
|
— | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents |
303,000
GBP
|
— |
19,000
GBP
|
— | — |
| Cash and cash equivalents | — |
27,440,000
GBP
|
— |
9,672,000
GBP
|
31,157,000
GBP
|