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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — |
28, 546
GBP
|
22,7 71
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements | — | — | — | — | — | — |
2 , 517
GBP
|
—
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other non-current receivables | — | — | — | — | — | — |
2 ,75 3
GBP
|
2,666,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — |
6 ,1 7 7
GBP
|
4, 768
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — | — |
68 ,931
GBP
|
65 ,5 81
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||
| Trade and other current receivables | — | — | — | — | — | — |
162 ,0 56
GBP
|
130,616,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — |
160,300,000
GBP
|
146,218,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
176 , 5 78
GBP
|
— |
| Current assets | — | — | — | — | — | — |
64 7 ,929
GBP
|
5 2 0 , 8 41
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — |
716, 860
GBP
|
586 ,42 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — | — | — | — |
70, 57 3
GBP
|
70, 57 3
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — |
3 41 , 8 11
GBP
|
306,3 49
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — | — |
46 ,23 6
GBP
|
46, 236
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Treasury shares | — | — | — | — | — | — |
2 , 5 8 9
GBP
|
1, 5 09
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — | — | — |
5 5 , 4 3 9
GBP
|
50 , 5 3 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
5 5 ,4 3 9
GBP
|
3 41 , 8 11
GBP
|
46, 236
GBP
|
70,57 3
GBP
|
2 , 5 89
GBP
|
2 ,901
GBP
|
403,493,000
GBP
|
37 4,015
GBP
|
46, 236
GBP
|
70, 573
GBP
|
1 ,509
GBP
|
2 , 901
GBP
|
306,349,000
GBP
|
50, 53 5
GBP
|
281,000
GBP
|
1 , 0 9 4
GBP
|
73 ,1 9 3
GBP
|
3 2 6 , 24 2
GBP
|
46, 236
GBP
|
36 8 , 878
GBP
|
75 , 9 80
GBP
|
| Liabilities [abstract] | |||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||
| Non-current provisions | — | — | — | — | — | — |
257,000
GBP
|
2 ,0 87
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — | — | — |
3, 24 4
GBP
|
4,012,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — | — |
15, 501
GBP
|
12,327,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||
| Current provisions [abstract] | |||||||||||||||||||||
| Current provisions | — | — | — | — | — | — |
3,937,000
GBP
|
815,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current payables | — | — | — | — | — | — |
272 , 811
GBP
|
182, 284
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — | — |
2 9 7, 8 6 6
GBP
|
200,080,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — | — |
313, 367
GBP
|
212,40 7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — | — |
716,8 60
GBP
|
586 ,422
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |