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] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — |
24,94 1
GBP
|
— | — | — | — | — |
26 ,1 0 5
GBP
|
— | — | — | — | — | — | — | — | — |
| Trade and other non-current receivables | — | — | — | — | — |
1 ,7 97
GBP
|
— | — | — | — | — |
1, 800
GBP
|
— | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — |
6,022,000
GBP
|
— | — | — | — | — |
6 , 370
GBP
|
— | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — |
76, 5 3 6
GBP
|
— | — | — | — | — |
44,6 05
GBP
|
— | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||
| Trade and other current receivables | — | — | — | — | — |
156 ,917
GBP
|
— | — | — | — | — |
1 2 7, 1 1 9
GBP
|
— | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — |
176, 57 8
GBP
|
— | — | — | — | — |
118 ,921
GBP
|
— | — | — |
8 4 , 3 07
GBP
|
— | — | — | — | — |
| Current assets | — | — | — | — | — |
559 ,9 11
GBP
|
— | — | — | — | — |
533,029,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — |
6 3 6 , 4 47
GBP
|
— | — | — | — | — |
57 7, 6 3 4
GBP
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — | — | — |
73 ,1 93
GBP
|
— | — | — | — | — |
73 ,29 9
GBP
|
— | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — |
3 2 7, 7 2 9
GBP
|
— | — | — | — | — |
330,698,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — |
4 6 , 236
GBP
|
— | — | — | — | — |
46 , 236
GBP
|
— | — | — | — | — | — | — | — | — |
| Treasury shares | — | — | — | — | — |
1,094,000
GBP
|
— | — | — | — | — |
382,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — | — |
7 5,980
GBP
|
— | — | — | — | — |
49, 3 3 4
GBP
|
— | — | — | — | — | — | — | — | — |
| Equity |
281,000
GBP
|
1,094,000
GBP
|
73 ,1 93
GBP
|
46 , 23 6
GBP
|
3 2 7, 7 2 9
GBP
|
3 70,365
GBP
|
7 5,980
GBP
|
—
GBP
|
382,000
GBP
|
330,698,000
GBP
|
49 , 3 3 4
GBP
|
4 0 0, 517
GBP
|
73, 299
GBP
|
4 6, 236
GBP
|
51,836,000
GBP
|
282 , 879
GBP
|
—
GBP
|
43 3
GBP
|
4 6 , 23 6
GBP
|
72,8 99
GBP
|
2 1 6 , 013
GBP
|
| Liabilities [abstract] | |||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||
| Non-current provisions | — | — | — | — | — |
2 ,117
GBP
|
— | — | — | — | — |
1 , 811
GBP
|
— | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — | — |
3,30 9
GBP
|
— | — | — | — | — |
1 ,62 2
GBP
|
— | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — |
14,6 95
GBP
|
— | — | — | — | — |
14, 35 4
GBP
|
— | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||
| Current provisions [abstract] | |||||||||||||||||||||
| Current provisions | — | — | — | — | — |
369,000
GBP
|
— | — | — | — | — |
1, 889
GBP
|
— | — | — | — | — | — | — | — | — |
| Trade and other current payables | — | — | — | — | — |
215 ,8 53
GBP
|
— | — | — | — | — |
152 , 25 3
GBP
|
— | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — |
251, 3 87
GBP
|
— | — | — | — | — |
1 62 ,76 3
GBP
|
— | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — |
266,082,000
GBP
|
— | — | — | — | — |
177,117,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — |
6 3 6 , 4 47
GBP
|
— | — | — | — | — |
57 7, 6 3 4
GBP
|
— | — | — | — | — | — | — | — | — |