Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
681,000
GBP
|
1,007,000
GBP
|
— |
| Investment property [abstract] | |||
| Investment property |
478,355,000
GBP
|
373,079,000
GBP
|
— |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract] | |||
| Investments in joint ventures reported in separate financial statements |
36,131,000
GBP
|
25,316,000
GBP
|
— |
| Trade and other non-current receivables [abstract] | |||
| Trade and other non-current receivables |
5,369,000
GBP
|
–
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
49,755,000
GBP
|
56,441,000
GBP
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
177,822,000
GBP
|
182,666,000
GBP
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash [abstract] | |||
| Cash |
12,037,000
GBP
|
12,710,000
GBP
|
11,833,000
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 |
1,925,000
GBP
|
7,594,000
GBP
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
37,781,000
GBP
|
83,882,000
GBP
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other non-current payables [abstract] | |||
| Trade and other non-current payables |
5,686,000
GBP
|
1,954,000
GBP
|
— |
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
94,316,000
GBP
|
66,486,000
GBP
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Non-current net defined benefit liability |
558,000
GBP
|
968,000
GBP
|
— |
| Non-current derivative financial liabilities |
156,000
GBP
|
826,000
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
32,272,000
GBP
|
32,253,000
GBP
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Revaluation surplus |
199,629,000
GBP
|
132,833,000
GBP
|
— |
| Miscellaneous equity [abstract] | |||
| Capital redemption reserve |
257,000
GBP
|
257,000
GBP
|
— |
| Merger reserve |
45,667,000
GBP
|
45,667,000
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
762,169,000
GBP
|
658,983,000
GBP
|
— |
| Liabilities |
184,185,000
GBP
|
170,271,000
GBP
|
— |
| Assets (liabilities) |
577,984,000
GBP
|
488,712,000
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
241,539,000
GBP
|
259,411,000
GBP
|
— |
| Current liabilities |
97,305,000
GBP
|
66,772,000
GBP
|
— |
| Current assets (liabilities) |
144,234,000
GBP
|
192,639,000
GBP
|
— |
| Assets less current liabilities [abstract] |