Statement Of Changes In Equity [Abstract]
| Concept |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 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 |
As at 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 |
As at 2022-06-30 |
As at 2021-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
As at 2021-06-30 |
2020-07-01 to 2021-06-30 |
2020-07-01 to 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
2020-07-01 to 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
2020-07-01 to 2021-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||||||
| Equity |
158,700,000
GBP
|
155,700,000
GBP
|
100,000
GBP
|
33,400,000
GBP
|
14,600,000
GBP
|
427,400,000
GBP
|
— | — | — | — | — |
427,300,000
GBP
|
— | — | — | — | — |
65,000,000
GBP
|
361,200,000
GBP
|
— | — | — | — | — | — |
33,400,000
GBP
|
— | — |
14,600,000
GBP
|
155,700,000
GBP
|
— |
65,000,000
GBP
|
100,000
GBP
|
92,600,000
GBP
|
361,300,000
GBP
|
— |
18,800,000
GBP
|
161,300,000
GBP
|
200,000
GBP
|
366,100,000
GBP
|
98,400,000
GBP
|
54,200,000
GBP
|
365,900,000
GBP
|
33,400,000
GBP
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | — | — |
–
GBP
|
66,200,000
GBP
|
66,200,000
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
66,200,000
GBP
|
–
GBP
|
46,200,000
GBP
|
20,000,000
GBP
|
— | — |
15,700,000
GBP
|
87,700,000
GBP
|
100,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— |
72,100,000
GBP
|
72,100,000
GBP
|
— | — |
72,000,000
GBP
|
— | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — |
| Comprehensive income | — | — | — | — | — | — |
–
GBP
|
66,300,000
GBP
|
66,300,000
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
66,300,000
GBP
|
–
GBP
|
— | — | — | — | — | — |
100,000
GBP
|
–
GBP
|
4,200,000
GBP
|
–
GBP
|
— |
76,100,000
GBP
|
71,900,000
GBP
|
— | — |
76,000,000
GBP
|
— | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — |
| Issue of equity | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
–
GBP
|
10,800,000
GBP
|
–
GBP
|
57,300,000
GBP
|
— |
68,100,000
GBP
|
–
GBP
|
— | — |
68,100,000
GBP
|
— | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — |