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] | ||
| Land and buildings [abstract] | ||
| Land and buildings |
15 .0
GBP
|
14,500,000
GBP
|
| Other property, plant and equipment |
5,900,000
GBP
|
8,000,000
GBP
|
| Intangible assets and goodwill [abstract] | ||
| Intangible assets and goodwill |
38,400,000
GBP
|
39,700,000
GBP
|
| Investments accounted for using equity method [abstract] | ||
| Investments in joint ventures accounted for using equity method |
5,700,000
GBP
|
8,800,000
GBP
|
| Trade and other current receivables [abstract] | ||
| Trade and other current receivables |
105 .2
GBP
|
102 .3
GBP
|
| Classes of current inventories [abstract] | ||
| Current inventories |
11 . 2
GBP
|
11,800,000
GBP
|
| Classes of current inventories, alternative [abstract] | ||
| Cash and cash equivalents [abstract] | ||
| Cash [abstract] | ||
| Cash |
2 .1
GBP
|
4 .0
GBP
|
| Cash and cash equivalents |
2 .1
GBP
|
4 .0
GBP
|
| Miscellaneous current assets [abstract] | ||
| Current derivative financial assets |
–
GBP
|
500,000
GBP
|
| Borrowings [abstract] | ||
| Non-current portion of non-current borrowings |
112,900,000
GBP
|
104. 1
GBP
|
| Current borrowings and current portion of non-current borrowings [abstract] | ||
| Current borrowings |
2 .3
GBP
|
–
GBP
|
| Non-current portion of non-current borrowings, by type [abstract] | ||
| Trade and other current payables [abstract] | ||
| Trade and other current payables |
10 6.9
GBP
|
96,400,000
GBP
|
| Miscellaneous current liabilities [abstract] | ||
| Current derivative financial liabilities |
0 .1
GBP
|
0 .1
GBP
|
| Issued capital [abstract] | ||
| Issued capital |
25,800,000
GBP
|
25,800,000
GBP
|
| Retained earnings [abstract] | ||
| Retained earnings |
135,400,000
GBP
|
1 4 7. 6
GBP
|
| Accumulated other comprehensive income [abstract] | ||
| Reserve of exchange differences on translation |
2 . 2
GBP
|
1,500,000
GBP
|
| Reserve of cash flow hedges |
0. 4
GBP
|
0. 2
GBP
|
| Miscellaneous equity [abstract] | ||
| Capital redemption reserve |
700,000
GBP
|
0. 7
GBP
|
| Merger reserve |
1,000,000
GBP
|
1 .0
GBP
|
| Net assets (liabilities) [abstract] | ||
| Assets |
513,000,000
GBP
|
5 0 0. 2
GBP
|
| Liabilities |
3 5 0. 8
GBP
|
324. 5
GBP
|
| Assets (liabilities) |
162 . 2
GBP
|
1 75.7
GBP
|
| Net current assets (liabilities) [abstract] | ||
| Current assets |
121,400,000
GBP
|
12 1.3
GBP
|
| Current liabilities |
1 4 0. 4
GBP
|
1 28.6
GBP
|
| Assets less current liabilities [abstract] |