Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-06-30 |
As at 2021-06-30 |
As at 2020-06-30 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
9,100,000
GBP
|
11,200,000
GBP
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
90,900,000
GBP
|
80. 5
GBP
|
— |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract] | |||
| Investments in associates reported in separate financial statements |
2,100,000
GBP
|
900,000
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
74,300,000
GBP
|
83,400,000
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 |
39,300,000
GBP
|
34,000,000
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 |
32,300,000
GBP
|
41,000,000
GBP
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash [abstract] | |||
| Cash |
57,400,000
GBP
|
51,400,000
GBP
|
— |
| Cash and cash equivalents |
552,000,000
GBP
|
456,100,000
GBP
|
500,900,000
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 or as held for distribution to owners |
–
GBP
|
46,200,000
GBP
|
— |
| Miscellaneous current assets [abstract] | |||
| Current derivative financial assets |
–
GBP
|
1,300,000
GBP
|
— |
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
36,400,000
GBP
|
45,500,000
GBP
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Current derivative financial liabilities |
5,200,000
GBP
|
–
GBP
|
— |
| Miscellaneous liabilities [abstract] | |||
| Deposit liabilities | — | — | — |
| Deposits from banks |
268,900,000
GBP
|
71,200,000
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
100,000
GBP
|
100,000
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
901,000,000
GBP
|
941,000,000
GBP
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Reserve of exchange differences on translation |
33,200,000
GBP
|
46,200,000
GBP
|
— |
| Reserve of cash flow hedges |
4,900,000
GBP
|
1,100,000
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
1,0 98.2
GBP
|
1,108,000,000
GBP
|
— |
| Liabilities |
131,400,000
GBP
|
175,300,000
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
923,700,000
GBP
|
899,900,000
GBP
|
— |
| Current liabilities |
116,800,000
GBP
|
153,700,000
GBP
|
— |
| Assets less current liabilities [abstract] |