Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2025-03-31 |
As at 2024-03-31 |
As at 2023-03-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
27,100,000
GBP
|
20,100,000
GBP
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
13,200,000
GBP
|
9,600,000
GBP
|
— |
| Goodwill |
25,600,000
GBP
|
28,200,000
GBP
|
— |
| Trade and other non-current receivables [abstract] | |||
| Trade and other non-current receivables |
88,500,000
GBP
|
90,000,000
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
102,500,000
GBP
|
115,100,000
GBP
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
88,500,000
GBP
|
79,500,000
GBP
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
27,400,000
GBP
|
40,100,000
GBP
|
19,100,000
GBP
|
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
1,700,000
GBP
|
1,900,000
GBP
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
200,000
GBP
|
200,000
GBP
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other non-current payables [abstract] | |||
| Trade and other non-current payables |
5,200,000
GBP
|
2,500,000
GBP
|
— |
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
207,700,000
GBP
|
225,600,000
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
1,500,000
GBP
|
1,400,000
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
22,800,000
GBP
|
36,500,000
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
426,600,000
GBP
|
441,800,000
GBP
|
— |
| Liabilities |
282,100,000
GBP
|
304,000,000
GBP
|
— |
| Assets (liabilities) |
144,500,000
GBP
|
137,800,000
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
218,400,000
GBP
|
234,700,000
GBP
|
— |
| Current liabilities |
227,600,000
GBP
|
243,900,000
GBP
|
— |
| Current assets (liabilities) |
9,200,000
GBP
|
9,100,000
GBP
|
— |
| Assets less current liabilities [abstract] |