Analysis Of Income And Expense [Abstract]
| Concept |
2022-07-01 to 2023-06-30 |
2022-07-01 to 2023-06-30 |
2022-07-01 to 2023-06-30 |
2022-07-01 to 2023-06-30 |
2022-07-01 to 2023-06-30 |
2022-07-01 to 2023-06-30 |
2022-07-01 to 2023-06-30 |
2022-07-01 to 2023-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
2021-07-01 to 2022-06-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||
| Revenue [abstract] | ||||||||||||||||
| Other revenue | — | — | — |
2,700,000
GBP
|
— | — | — | — | — |
2,900,000
GBP
|
— | — | — | — | — | — |
| Revenue | — | — | — |
193,200,000
GBP
|
— | — | — | — | — |
254,400,000
GBP
|
— | — | — | — | — | — |
| Material income and expense [abstract] | ||||||||||||||||
| Finance income (cost) | — | — | — |
33,900,000
GBP
|
— | — | — | — | — |
2,100,000
GBP
|
— | — | — | — | — | — |
| Expenses by nature [abstract] | ||||||||||||||||
| Classes of employee benefits expense [abstract] | ||||||||||||||||
| Employee benefits expense | — | — | — |
66,200,000
GBP
|
— | — | — | — | — |
73,400,000
GBP
|
— | — | — | — | — | — |
| Other expenses, by nature | — | — | — |
27,800,000
GBP
|
— | — | — | — | — |
25,100,000
GBP
|
— | — | — | — | — | — |
| Miscellaneous other comprehensive income [abstract] | ||||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract] | ||||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations |
–
GBP
|
–
GBP
|
–
GBP
|
26,200,000
GBP
|
–
GBP
|
700,000
GBP
|
25,500,000
GBP
|
25,500,000
GBP
|
–
GBP
|
80,200,000
GBP
|
79,400,000
GBP
|
–
GBP
|
–
GBP
|
800,000
GBP
|
79,400,000
GBP
|
–
GBP
|
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||||||||||||
| Share of profit (loss) of associates accounted for using equity method | — | — | — |
500,000
GBP
|
— | — | — | — | — |
1,300,000
GBP
|
— | — | — | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income |
–
GBP
|
83,300,000
GBP
|
4,900,000
GBP
|
6 5.2
GBP
|
–
GBP
|
2,500,000
GBP
|
62,700,000
GBP
|
25,500,000
GBP
|
88,500,000
GBP
|
166. 1
GBP
|
161,900,000
GBP
|
6,000,000
GBP
|
–
GBP
|
4,200,000
GBP
|
79,400,000
GBP
|
–
GBP
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — | — |
6 2.7
GBP
|
— | — | — | — | — |
161,900,000
GBP
|
— | — | — | — | — | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||||||||||
| Comprehensive income, attributable to non-controlling interests | — | — | — |
2. 5
GBP
|
— | — | — | — | — |
4,200,000
GBP
|
— | — | — | — | — | — |