Statement Of Changes In Equity [Abstract]
| Concept |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2022-08-01 to 2023-07-31 |
2021-08-01 to 2022-07-31 |
2021-08-01 to 2022-07-31 |
2021-08-01 to 2022-07-31 |
2021-08-01 to 2022-07-31 |
2021-08-01 to 2022-07-31 |
2021-08-01 to 2022-07-31 |
2021-08-01 to 2022-07-31 |
2021-08-01 to 2022-07-31 |
2021-08-01 to 2022-07-31 |
2021-08-01 to 2022-07-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||
| Increase (decrease) through exercise of options, equity |
—
GBP
|
—
GBP
|
1,6 3 9
GBP
|
—
GBP
|
—
GBP
|
1, 3 7 9
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
3, 0 18
GBP
|
2,0 6 5
GBP
|
—
GBP
|
18 7
GBP
|
1,129,000
GBP
|
—
GBP
|
187,000
GBP
|
—
GBP
|
74 9
GBP
|
—
GBP
|
—
GBP
|
| Purchase of treasury shares |
—
GBP
|
—
GBP
|
—
GBP
|
1,8 3 4
GBP
|
1,8 3 4
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
1,8 3 4
GBP
|
1,9 0 0
GBP
|
—
GBP
|
1,9 0 0
GBP
|
—
GBP
|
—
GBP
|
1,9 0 0
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|