Statement Of Financial Position [Abstract]
| Concept |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
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 2022-03-31 |
As at 2022-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — | — |
26,773,000
GBP
|
25,816,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Investment property | — | — | — | — | — | — | — |
8,049,000
GBP
|
8,271,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — | — | — | — |
3,742,000
GBP
|
3,742,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — | — | — | — |
135,785,000
GBP
|
142,491,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — | — | — |
230,241,000
GBP
|
227,849,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||
| Current inventories | — | — | — | — | — | — | — |
3,749,000
GBP
|
5,698,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current receivables | — | — | — | — | — | — | — |
104,066,000
GBP
|
58,863,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — | — |
57,829,000
GBP
|
193,804,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
30,359,000
GBP
|
— |
| Current assets | — | — | — | — | — | — | — |
421,150,000
GBP
|
566,890,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — | — |
651,391,000
GBP
|
794,739,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||
| Issued capital | — | — | — | — | — | — | — |
4,007,000
GBP
|
4,003,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — | — |
93,802,000
GBP
|
82,598,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — | — | — |
151,553,000
GBP
|
150,652,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Treasury shares | — | — | — | — | — | — | — |
15,688,000
GBP
|
5,502,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — | — | — |
232,631,000
GBP
|
230,708,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
93,802,000
GBP
|
1,150,000
GBP
|
-
GBP
|
151,553,000
GBP
|
4,007,000
GBP
|
15,688,000
GBP
|
107,000
GBP
|
232,631,000
GBP
|
230,708,000
GBP
|
150,652,000
GBP
|
4,003,000
GBP
|
5,502,000
GBP
|
107,000
GBP
|
1,150,000
GBP
|
-
GBP
|
82,598,000
GBP
|
107,000
GBP
|
5,502,000
GBP
|
1,150,000
GBP
|
3,982,000
GBP
|
147,112,000
GBP
|
61,935,000
GBP
|
2 05 ,5 73
GBP
|
91 1
GBP
|
| Liabilities [abstract] | ||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||
| Deferred tax liabilities | — | — | — | — | — | — | — |
1,106,000
GBP
|
901,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — | — | — |
181,436,000
GBP
|
91,281,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||||
| Trade and other current payables | — | — | — | — | — | — | — |
56,016,000
GBP
|
55,396,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — | — | — |
237,324,000
GBP
|
472,750,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |