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 |
7,300,000
GBP
|
6,500,000
GBP
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
87,000,000
GBP
|
86,900,000
GBP
|
— |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract] | |||
| Investments in associates reported in separate financial statements |
2,700,000
GBP
|
2,300,000
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
60,300,000
GBP
|
70,400,000
GBP
|
— |
| Categories of non-current financial assets [abstract] | |||
| Non-current financial assets at fair value through profit or loss [abstract] | |||
| Non-current financial assets at fair value through profit or loss |
57,600,000
GBP
|
54,100,000
GBP
|
— |
| Categories of current financial assets [abstract] | |||
| Current financial assets at fair value through profit or loss [abstract] | |||
| Current financial assets at fair value through profit or loss |
32,800,000
GBP
|
55,800,000
GBP
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash [abstract] | |||
| Cash |
53,500,000
GBP
|
40,900,000
GBP
|
— |
| Cash and cash equivalents |
308,000,000
GBP
|
478,600,000
GBP
|
552,000,000
GBP
|
| Miscellaneous current assets [abstract] | |||
| Current derivative financial assets |
200,000
GBP
|
–
GBP
|
— |
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
34. 2
GBP
|
24,200,000
GBP
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Current derivative financial liabilities |
–
GBP
|
200,000
GBP
|
— |
| Miscellaneous liabilities [abstract] | |||
| Deposit liabilities | — | — | — |
| Deposits from banks |
41,300,000
GBP
|
380,900,000
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
100,000
GBP
|
100,000
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
863,300,000
GBP
|
875,400,000
GBP
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Reserve of exchange differences on translation |
3,600,000
GBP
|
7,700,000
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
979,700,000
GBP
|
1,008,700,000
GBP
|
— |
| Liabilities |
88,900,000
GBP
|
95,700,000
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
806,000,000
GBP
|
834,700,000
GBP
|
— |
| Current liabilities |
75,500,000
GBP
|
82,700,000
GBP
|
— |
| Assets less current liabilities [abstract] |