Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
1 .1
GBP
|
400,000
GBP
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
1,900,000
GBP
|
1,300,000
GBP
|
— |
| Investment property [abstract] | |||
| Investment property completed |
1,06 2. 4
GBP
|
9 6 7. 2
GBP
|
— |
| Investment property under construction or development |
3,300,000
GBP
|
28 .7
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
7. 0
GBP
|
7. 8
GBP
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
55,800,000
GBP
|
3 7. 1
GBP
|
3 3 .9
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 |
13 .7
GBP
|
2 5 .9
GBP
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
386,500,000
GBP
|
326. 2
GBP
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
–
GBP
|
4 4 .7
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 |
3 3 .1
GBP
|
2 9.9
GBP
|
— |
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
24 .8
GBP
|
20,000,000
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
6,000,000
GBP
|
6,000,000
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
249. 8
GBP
|
1 81.4
GBP
|
— |
| Miscellaneous equity [abstract] | |||
| Capital reserve |
444,700,000
GBP
|
4 59.9
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
1 ,14 6 . 5
GBP
|
1,0 69.4
GBP
|
— |
| Liabilities |
4 45 .7
GBP
|
421. 8
GBP
|
— |
| Assets (liabilities) |
700. 8
GBP
|
6 4 7. 6
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
76. 5
GBP
|
70. 8
GBP
|
— |
| Current liabilities |
58 .0
GBP
|
94 .7
GBP
|
— |
| Assets less current liabilities [abstract] |