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 |
25,200,000
GBP
|
29,700,000
GBP
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
37,700,000
GBP
|
53,700,000
GBP
|
— |
| Goodwill |
182,900,000
GBP
|
200,300,000
GBP
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Non-current net defined benefit asset |
19,400,000
GBP
|
25,700,000
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
1,194,500,000
GBP
|
1,244,600,000
GBP
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
121,800,000
GBP
|
145,600,000
GBP
|
296,200,000
GBP
|
| Miscellaneous current assets [abstract] | |||
| Current derivative financial assets |
–
GBP
|
100,000
GBP
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
65,000,000
GBP
|
10,000,000
GBP
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
926,600,000
GBP
|
991,300,000
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
16,000,000
GBP
|
16,000,000
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
62,000,000
GBP
|
155,400,000
GBP
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Reserve of exchange differences on translation |
53,900,000
GBP
|
58,000,000
GBP
|
— |
| Miscellaneous equity [abstract] | |||
| Reserve of share-based payments |
23,900,000
GBP
|
24,100,000
GBP
|
— |
| Capital redemption reserve |
3,400,000
GBP
|
3,400,000
GBP
|
— |
| Merger reserve |
28,800,000
GBP
|
43,800,000
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
1,778,200,000
GBP
|
1,904,000,000
GBP
|
— |
| Liabilities |
1,220,600,000
GBP
|
1,233,700,000
GBP
|
— |
| Assets (liabilities) |
557,600,000
GBP
|
670,300,000
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
1,325,400,000
GBP
|
1,397,100,000
GBP
|
— |
| Current liabilities |
1,007,800,000
GBP
|
1,059,600,000
GBP
|
— |
| Assets less current liabilities [abstract] |