Statement Of Financial Position [Abstract]
| Concept |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||
| Investment property | — | — | — | — | — |
938,797,000
GBP
|
— | — | — | — | — |
740,207,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — |
1,055,442,000
GBP
|
— | — | — | — | — |
825,693,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||
| Trade and other current receivables | — | — | — | — | — |
48,453,000
GBP
|
— | — | — | — | — |
40,427,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Current tax assets, current | — | — | — | — | — |
338,000
GBP
|
— | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — |
28,807,000
GBP
|
— | — | — | — | — |
154,448,000
GBP
|
— | — | — |
74,586,000
GBP
|
— | — | — | — | — |
| Current assets | — | — | — | — | — |
79,687,000
GBP
|
— | — | — | — | — |
195,323,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — |
1,135,129,000
GBP
|
— | — | — | — | — |
1,021,016,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — | — | — |
1,223,000
GBP
|
— | — | — | — | — |
1,478,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — |
367,505,000
GBP
|
— | — | — | — | — |
326,608,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — |
112,654,000
GBP
|
— | — | — | — | — |
107,990,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — | — |
291,000
GBP
|
— | — | — | — | — |
291,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Equity |
7,743,000
GBP
|
197,627,000
GBP
|
1,223,000
GBP
|
112,654,000
GBP
|
367,505,000
GBP
|
687,043,000
GBP
|
291,000
GBP
|
7,478,000
GBP
|
164,316,000
GBP
|
326,608,000
GBP
|
291,000
GBP
|
608,161,000
GBP
|
1,478,000
GBP
|
107,990,000
GBP
|
291,000
GBP
|
598,689,000
GBP
|
171,464,000
GBP
|
7,478,000
GBP
|
103,522,000
GBP
|
1,465,000
GBP
|
314,469,000
GBP
|
| Liabilities [abstract] | |||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||
| Deferred tax liabilities | — | — | — | — | — |
–
GBP
|
— | — | — | — | — |
13,569,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — |
403,442,000
GBP
|
— | — | — | — | — |
364,802,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||
| Trade and other current payables | — | — | — | — | — |
43,986,000
GBP
|
— | — | — | — | — |
46,764,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Current tax liabilities, current | — | — | — | — | — |
–
GBP
|
— | — | — | — | — |
655,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — |
44,644,000
GBP
|
— | — | — | — | — |
48,053,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — |
448,086,000
GBP
|
— | — | — | — | — |
412,855,000
GBP
|
— | — | — | — | — | — | — | — | — |