Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2024-06-30 |
As at 2023-06-30 |
As at 2022-06-30 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
30,400,000
GBP
|
35,300,000
GBP
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
33,700,000
GBP
|
35,400,000
GBP
|
— |
| Goodwill |
96,000,000
GBP
|
96,100,000
GBP
|
— |
| Trade and other non-current receivables [abstract] | |||
| Other non-current receivables |
2,500,000
GBP
|
2,400,000
GBP
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Non-current net defined benefit asset |
8,000,000
GBP
|
12,600,000
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
146,700,000
GBP
|
153,500,000
GBP
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
29,400,000
GBP
|
29,500,000
GBP
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
48,600,000
GBP
|
49,800,000
GBP
|
49,400,000
GBP
|
| Miscellaneous current assets [abstract] | |||
| Current derivative financial assets |
800,000
GBP
|
2,300,000
GBP
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
102,600,000
GBP
|
99,200,000
GBP
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
4,300,000
GBP
|
12,700,000
GBP
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other non-current payables [abstract] | |||
| Trade and other non-current payables |
1,200,000
GBP
|
4,800,000
GBP
|
— |
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
107,500,000
GBP
|
105,000,000
GBP
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Non-current derivative financial liabilities |
100,000
GBP
|
—
GBP
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Current derivative financial liabilities |
500,000
GBP
|
1,000,000
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
15,600,000
GBP
|
15,600,000
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
96,100,000
GBP
|
106,600,000
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
428,800,000
GBP
|
448,800,000
GBP
|
— |
| Liabilities |
263,600,000
GBP
|
272,200,000
GBP
|
— |
| Assets (liabilities) |
165,200,000
GBP
|
176,600,000
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
232,600,000
GBP
|
237,800,000
GBP
|
— |
| Current liabilities |
125,300,000
GBP
|
129,600,000
GBP
|
— |
| Current assets (liabilities) |
107,300,000
GBP
|
108,200,000
GBP
|
— |
| Assets less current liabilities [abstract] |