Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2025-03-31 |
As at 2024-03-31 |
|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||
| Property, plant and equipment [abstract] | ||
| Property, plant and equipment |
21 . 8
GBP
|
2 8 .1
GBP
|
| Intangible assets and goodwill [abstract] | ||
| Intangible assets other than goodwill [abstract] | ||
| Intangible assets other than goodwill |
4 6 .1
GBP
|
5 3 .9
GBP
|
| Goodwill |
1 07. 4
GBP
|
1 07. 3
GBP
|
| Miscellaneous non-current assets [abstract] | ||
| Non-current net defined benefit asset |
6,800,000
GBP
|
16. 5
GBP
|
| Trade and other current receivables [abstract] | ||
| Trade and other current receivables |
71,700,000
GBP
|
72,600,000
GBP
|
| Classes of current inventories [abstract] | ||
| Current inventories |
88. 2
GBP
|
9 7. 4
GBP
|
| Classes of current inventories, alternative [abstract] | ||
| Cash and cash equivalents [abstract] | ||
| Cash and cash equivalents |
22 .7
GBP
|
30. 8
GBP
|
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract] | ||
| Non-current assets or disposal groups classified as held for sale |
3,700,000
GBP
|
–
GBP
|
| Borrowings [abstract] | ||
| Non-current portion of non-current borrowings |
59. 5
GBP
|
6 8 . 1
GBP
|
| Non-current portion of non-current borrowings, by type [abstract] | ||
| Trade and other current payables [abstract] | ||
| Trade and other current payables |
8 6 . 7
GBP
|
8 9. 1
GBP
|
| Miscellaneous current liabilities [abstract] | ||
| Current derivative financial liabilities |
0 . 5
GBP
|
0 . 6
GBP
|
| Issued capital [abstract] | ||
| Issued capital |
8 .9
GBP
|
8 .9
GBP
|
| Net assets (liabilities) [abstract] | ||
| Assets (liabilities) |
2 0 7. 9
GBP
|
222,400,000
GBP
|
| Net current assets (liabilities) [abstract] | ||
| Current assets |
1 8 7. 8
GBP
|
20 0. 8
GBP
|
| Current liabilities |
95 . 2
GBP
|
9 9. 2
GBP
|
| Current assets (liabilities) |
92 .6
GBP
|
1 01 .6
GBP
|
| Assets less current liabilities [abstract] | ||
| Assets less current liabilities |
292 . 8
GBP
|
326 .1
GBP
|