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 |
600,000
GBP
|
681,000
GBP
|
— |
| Investment property [abstract] | |||
| Investment property |
400,363,000
GBP
|
478,355,000
GBP
|
— |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract] | |||
| Investments in joint ventures reported in separate financial statements |
29,828,000
GBP
|
36,131,000
GBP
|
— |
| Trade and other non-current receivables [abstract] | |||
| Trade and other non-current receivables |
4,013,000
GBP
|
5,369,000
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
56,658,000
GBP
|
49,755,000
GBP
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
216,393,000
GBP
|
177,822,000
GBP
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash [abstract] | |||
| Cash |
11,583,000
GBP
|
12,037,000
GBP
|
12,710,000
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 |
59,790,000
GBP
|
1,925,000
GBP
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
56,911,000
GBP
|
37,781,000
GBP
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
3,067,000
GBP
|
–
GBP
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other non-current payables [abstract] | |||
| Trade and other non-current payables |
2,819,000
GBP
|
5,686,000
GBP
|
— |
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
82,499,000
GBP
|
94,316,000
GBP
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Non-current net defined benefit liability |
114,000
GBP
|
558,000
GBP
|
— |
| Non-current derivative financial liabilities |
–
GBP
|
156,000
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
32,305,000
GBP
|
32,272,000
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings, profit (loss) for reporting period |
27,838,000
GBP
|
93,990,000
GBP
|
— |
| Retained earnings, excluding profit (loss) for reporting period |
297,439,000
GBP
|
181,566,000
GBP
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Revaluation surplus |
174,520,000
GBP
|
199,629,000
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 |
779,482,000
GBP
|
762,169,000
GBP
|
— |
| Liabilities |
176,818,000
GBP
|
184,185,000
GBP
|
— |
| Assets (liabilities) |
602,664,000
GBP
|
577,984,000
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
344,424,000
GBP
|
241,539,000
GBP
|
— |
| Current liabilities |
92,661,000
GBP
|
97,305,000
GBP
|
— |
| Current assets (liabilities) |
251,763,000
GBP
|
144,234,000
GBP
|
— |
| Assets less current liabilities [abstract] |