Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
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 |
14 . 2
GBP
|
20 .5
GBP
|
| Intangible assets and goodwill [abstract] | ||
| Intangible assets and goodwill |
119 .7
GBP
|
1 33. 5
GBP
|
| Investment property [abstract] | ||
| Investment property |
69,600,000
GBP
|
–
GBP
|
| Categories of financial assets [abstract] | ||
| Financial assets at fair value through profit or loss [abstract] | ||
| Financial assets at fair value through profit or loss |
24 ,6 81 .7
GBP
|
23 , 269. 8
GBP
|
| Cash and cash equivalents [abstract] | ||
| Cash [abstract] | ||
| Cash |
510 . 2
GBP
|
1 ,49 6 . 3
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 |
3,100,000
GBP
|
–
GBP
|
| Classes of other provisions [abstract] | ||
| Other provisions [abstract] | ||
| Other provisions |
1,200,000
GBP
|
1,000,000
GBP
|
| Borrowings [abstract] | ||
| Borrowings |
7 74 . 3
GBP
|
773. 5
GBP
|
| Borrowings, by type [abstract] | ||
| Miscellaneous liabilities [abstract] | ||
| Investment contracts liabilities |
33 .6
GBP
|
42 . 8
GBP
|
| Issued capital [abstract] | ||
| Issued capital |
103. 9
GBP
|
10 3. 8
GBP
|
| Retained earnings [abstract] | ||
| Retained earnings |
9 7 7. 0
GBP
|
1, 056.6
GBP
|
| Accumulated other comprehensive income [abstract] | ||
| Revaluation surplus |
2,800,000
GBP
|
3. 3
GBP
|
| Miscellaneous equity [abstract] | ||
| Merger reserve |
5 9 7. 1
GBP
|
597 .1
GBP
|
| Net assets (liabilities) [abstract] | ||
| Assets |
2 8 , 3 4 7. 9
GBP
|
2 8 ,17 3 . 4
GBP
|
| Liabilities |
2 5 , 9 0 7. 9
GBP
|
25, 683. 0
GBP
|
| Assets less current liabilities [abstract] |