Statement Of Changes In Equity [Abstract]
| Concept |
2021-09-01 to 2022-08-31 |
2021-09-01 to 2022-08-31 |
2021-09-01 to 2022-08-31 |
2021-09-01 to 2022-08-31 |
2021-09-01 to 2022-08-31 |
2021-09-01 to 2022-08-31 |
2021-09-01 to 2022-08-31 |
2021-09-01 to 2022-08-31 |
2020-09-01 to 2021-08-31 |
2020-09-01 to 2021-08-31 |
2020-09-01 to 2021-08-31 |
2020-09-01 to 2021-08-31 |
2020-09-01 to 2021-08-31 |
2020-09-01 to 2021-08-31 |
2020-09-01 to 2021-08-31 |
2020-09-01 to 2021-08-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||
| Increase (decrease) through exercise of options, equity | — | — | — | — | — | — | — | — |
–
GBP
|
0 .1
GBP
|
0 .1
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
| Issue of convertible instruments | — | — | — | — | — | — | — | — |
–
GBP
|
58,900,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
58,900,000
GBP
|
| Decrease (increase) through tax on share-based payment transactions, equity |
–
GBP
|
700,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
0 .7
GBP
|
–
GBP
|
–
GBP
|
0 .1
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
0 .1
GBP
|
–
GBP
|
–
GBP
|