Statement Of Financial Position [Abstract]
| Concept |
As at 2023-03-25 |
As at 2023-03-25 |
As at 2023-03-25 |
As at 2023-03-25 |
As at 2023-03-25 |
As at 2023-03-25 |
As at 2023-03-25 |
As at 2023-03-25 |
As at 2023-03-25 |
As at 2022-03-26 |
As at 2022-03-26 |
As at 2022-03-26 |
As at 2022-03-26 |
As at 2022-03-26 |
As at 2022-03-26 |
As at 2022-03-26 |
As at 2022-03-26 |
As at 2022-03-26 |
As at 2021-03-27 |
As at 2021-03-27 |
As at 2021-03-27 |
As at 2021-03-27 |
As at 2021-03-27 |
As at 2021-03-27 |
As at 2021-03-27 |
As at 2021-03-27 |
As at 2021-03-27 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — |
9 7. 1
GBP
|
— | — | — | — | — | — | — | — |
102. 7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — | — |
12. 1
GBP
|
— | — | — | — | — | — | — | — |
12. 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — |
18,300,000
GBP
|
— | — | — | — | — | — | — | — |
11,200,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other non-current financial assets | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — |
7. 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — |
166 .8
GBP
|
— | — | — | — | — | — | — | — |
203,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||||||||
| Current inventories | — | — | — | — | — |
49,300,000
GBP
|
— | — | — | — | — | — | — | — |
5 0. 1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current receivables | — | — | — | — | — |
70,700,000
GBP
|
— | — | — | — | — | — | — | — |
89 .0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — |
40,300,000
GBP
|
— | — | — | — | — | — | — | — |
24,300,000
GBP
|
— | — | — | — | — |
25. 7
GBP
|
— | — | — | — | — | — |
| Current assets | — | — | — | — | — |
181,800,000
GBP
|
— | — | — | — | — | — | — | — |
175. 1
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — |
348,600,000
GBP
|
— | — | — | — | — | — | — | — |
378 .5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||||||||
| Issued capital | — | — | — | — | — |
88,800,000
GBP
|
— | — | — | — | — | — | — | — |
88,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — |
43,300,000
GBP
|
— | — | — | — | — | — | — | — |
35,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — |
42,200,000
GBP
|
— | — | — | — | — | — | — | — |
42,200,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — | — |
83,900,000
GBP
|
— | — | — | — | — | — | — | — |
31,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — |
19 .1
GBP
|
— | — | — | — | — | — | — | — |
143,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — |
15,900,000
GBP
|
— | — | — | — | — | — | — | — |
18,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
43,300,000
GBP
|
15,900,000
GBP
|
83,800,000
GBP
|
5 .9
GBP
|
9. 2
GBP
|
35. 0
GBP
|
42,200,000
GBP
|
88,800,000
GBP
|
100,000
GBP
|
88,800,000
GBP
|
5,900,000
GBP
|
42,200,000
GBP
|
4,200,000
GBP
|
0 .5
GBP
|
161,800,000
GBP
|
31. 9
GBP
|
18. 0
GBP
|
35,100,000
GBP
|
31. 9
GBP
|
14,900,000
GBP
|
111,400,000
GBP
|
88,800,000
GBP
|
42,200,000
GBP
|
5 .7
GBP
|
0. 8
GBP
|
5,900,000
GBP
|
16 .4
GBP
|
| Liabilities [abstract] | |||||||||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||||||||
| Deferred tax liabilities | — | — | — | — | — |
2,800,000
GBP
|
— | — | — | — | — | — | — | — |
2,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — |
187 .4
GBP
|
— | — | — | — | — | — | — | — |
109,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||||||||
| Current provisions [abstract] | |||||||||||||||||||||||||||
| Current provisions | — | — | — | — | — |
6,000,000
GBP
|
— | — | — | — | — | — | — | — |
5,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current payables | — | — | — | — | — |
92,100,000
GBP
|
— | — | — | — | — | — | — | — |
8 0.0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — |
126 .2
GBP
|
— | — | — | — | — | — | — | — |
107 .3
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — |
313. 6
GBP
|
— | — | — | — | — | — | — | — |
216. 7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |