Statement Of Financial Position [Abstract]
| Concept |
As at 2024-06-30 |
As at 2024-06-30 |
As at 2024-06-30 |
As at 2024-06-30 |
As at 2024-06-30 |
As at 2024-06-30 |
As at 2024-06-30 |
As at 2023-06-30 |
As at 2023-06-30 |
As at 2023-06-30 |
As at 2023-06-30 |
As at 2023-06-30 |
As at 2023-06-30 |
As at 2023-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — | — |
30,400,000
GBP
|
— | — | — | — | — | — | — |
35,300,000
GBP
|
— | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — |
19,200,000
GBP
|
— | — | — | — | — | — | — |
20,700,000
GBP
|
— | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — |
96,000,000
GBP
|
— | — | — | — | — | — | — |
96,100,000
GBP
|
— | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — |
33,700,000
GBP
|
— | — | — | — | — | — | — |
35,400,000
GBP
|
— | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — |
6,400,000
GBP
|
— | — | — | — | — | — | — |
8,500,000
GBP
|
— | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — |
196,200,000
GBP
|
— | — | — | — | — | — | — |
211,000,000
GBP
|
— | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||
| Current inventories | — | — | — | — |
29,400,000
GBP
|
— | — | — | — | — | — | — |
29,500,000
GBP
|
— | — | — | — | — | — | — | — |
| Trade and other current receivables | — | — | — | — |
146,700,000
GBP
|
— | — | — | — | — | — | — |
153,500,000
GBP
|
— | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — |
48,600,000
GBP
|
— | — | — | — | — | — | — |
49,800,000
GBP
|
— | — | — | — | — | — |
49,400,000
GBP
|
— |
| Current assets | — | — | — | — |
232,600,000
GBP
|
— | — | — | — | — | — | — |
237,800,000
GBP
|
— | — | — | — | — | — | — | — |
| Assets | — | — | — | — |
428,800,000
GBP
|
— | — | — | — | — | — | — |
448,800,000
GBP
|
— | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — | — |
15,600,000
GBP
|
— | — | — | — | — | — | — |
15,600,000
GBP
|
— | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — |
96,100,000
GBP
|
— | — | — | — | — | — | — |
106,600,000
GBP
|
— | — | — | — | — | — | — | — |
| Share premium | — | — | — | — |
16,800,000
GBP
|
— | — | — | — | — | — | — |
16,800,000
GBP
|
— | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — |
36,200,000
GBP
|
— | — | — | — | — | — | — |
37,200,000
GBP
|
— | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — |
164,700,000
GBP
|
— | — | — | — | — | — | — |
176,200,000
GBP
|
— | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — |
500,000
GBP
|
— | — | — | — | — | — | — |
400,000
GBP
|
— | — | — | — | — | — | — | — |
| Equity |
16,800,000
GBP
|
500,000
GBP
|
96,100,000
GBP
|
164,700,000
GBP
|
165,200,000
GBP
|
36,200,000
GBP
|
15,600,000
GBP
|
106,600,000
GBP
|
400,000
GBP
|
176,200,000
GBP
|
16,800,000
GBP
|
37,200,000
GBP
|
176,600,000
GBP
|
15,600,000
GBP
|
120,500,000
GBP
|
16,800,000
GBP
|
200,000
GBP
|
197,400,000
GBP
|
44,500,000
GBP
|
197,600,000
GBP
|
15,600,000
GBP
|
| Liabilities [abstract] | |||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||
| Non-current provisions | — | — | — | — |
3,600,000
GBP
|
— | — | — | — | — | — | — |
3,700,000
GBP
|
— | — | — | — | — | — | — | — |
| Trade and other non-current payables | — | — | — | — |
1,200,000
GBP
|
— | — | — | — | — | — | — |
4,800,000
GBP
|
— | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — |
13,000,000
GBP
|
— | — | — | — | — | — | — |
15,500,000
GBP
|
— | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — |
138,300,000
GBP
|
— | — | — | — | — | — | — |
142,600,000
GBP
|
— | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||
| Current provisions [abstract] | |||||||||||||||||||||
| Current provisions | — | — | — | — |
3,500,000
GBP
|
— | — | — | — | — | — | — |
2,600,000
GBP
|
— | — | — | — | — | — | — | — |
| Trade and other current payables | — | — | — | — |
107,500,000
GBP
|
— | — | — | — | — | — | — |
105,000,000
GBP
|
— | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — |
125,300,000
GBP
|
— | — | — | — | — | — | — |
129,600,000
GBP
|
— | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — |
263,600,000
GBP
|
— | — | — | — | — | — | — |
272,200,000
GBP
|
— | — | — | — | — | — | — | — |