Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2023-12-31 |
As at 2022-12-31 |
As at 2021-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
800,000
GBP
|
1 .1
GBP
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
3 .1
GBP
|
1,900,000
GBP
|
— |
| Investment property [abstract] | |||
| Investment property completed |
1,072,700,000
GBP
|
1,0 62 .4
GBP
|
— |
| Investment property under construction or development |
3,000,000
GBP
|
3. 3
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
6,500,000
GBP
|
7. 0
GBP
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
40,500,000
GBP
|
55,800,000
GBP
|
3 7. 1
GBP
|
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract] | |||
| Non-current assets or disposal groups classified as held for sale |
22 .4
GBP
|
1 3.7
GBP
|
— |
| Miscellaneous current assets [abstract] | |||
| Current derivative financial assets |
100,000
GBP
|
–
GBP
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
30 0.2
GBP
|
386,500,000
GBP
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
56,500,000
GBP
|
–
GBP
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other non-current payables [abstract] | |||
| Non-current accruals and non-current deferred income including non-current contract liabilities [abstract] | |||
| Non-current deferred income including non-current contract liabilities [abstract] | |||
| Non-current deferred income including non-current contract liabilities |
34 .9
GBP
|
3 3 .1
GBP
|
— |
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
23,400,000
GBP
|
24 . 8
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
6 .0
GBP
|
6 .0
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
303. 8
GBP
|
249. 8
GBP
|
— |
| Miscellaneous equity [abstract] | |||
| Capital reserve |
4 24 .1
GBP
|
444. 7
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
1, 150.3
GBP
|
1,1 4 6 . 5
GBP
|
— |
| Liabilities |
41 6 .1
GBP
|
4 4 5 .7
GBP
|
— |
| Assets (liabilities) |
734. 2
GBP
|
70 0.8
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
69,500,000
GBP
|
76 .5
GBP
|
— |
| Current liabilities |
114 .9
GBP
|
58,000,000
GBP
|
— |
| Assets less current liabilities [abstract] |