Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2024-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
1,209,000
GBP
|
93,000
GBP
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Non-current derivative financial assets |
6,543,000
GBP
|
2,663,000
GBP
|
— |
| Other non-current assets |
1,656,000
GBP
|
994,000
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
1,103,000
GBP
|
865,000
GBP
|
— |
| Categories of non-current financial assets [abstract] | |||
| Non-current financial assets at fair value through profit or loss [abstract] | |||
| Non-current financial assets at fair value through profit or loss |
979,350,000
GBP
|
1,047,244,000
GBP
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
27,440,000
GBP
|
9,672,000
GBP
|
31,157,000
GBP
|
| Miscellaneous current assets [abstract] | |||
| Current derivative financial assets |
6,575,000
GBP
|
–
GBP
|
— |
| Other current assets |
1,839,000
GBP
|
1,329,000
GBP
|
— |
| Borrowings [abstract] | |||
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
330,000
GBP
|
233,000
GBP
|
— |
| Trade and other current payables [abstract] | |||
| Current trade payables |
2,863,000
GBP
|
2,697,000
GBP
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Current derivative financial liabilities |
–
GBP
|
2,823,000
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
852,386,000
GBP
|
852,386,000
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
188,398,000
GBP
|
202,764,000
GBP
|
— |
| Miscellaneous equity [abstract] | |||
| Additional paid-in capital |
3,139,000
GBP
|
3,113,000
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
1,025,715,000
GBP
|
1,063,843,000
GBP
|
— |
| Liabilities |
5,814,000
GBP
|
7,215,000
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
36,957,000
GBP
|
11,866,000
GBP
|
— |
| Current liabilities |
4,823,000
GBP
|
7,215,000
GBP
|
— |
| Assets less current liabilities [abstract] |