Statement Of Changes In Equity [Abstract]
| Concept |
2021-06-01 to 2022-05-31 |
2021-06-01 to 2022-05-31 |
2021-06-01 to 2022-05-31 |
2021-06-01 to 2022-05-31 |
2021-06-01 to 2022-05-31 |
2021-06-01 to 2022-05-31 |
2021-06-01 to 2022-05-31 |
2020-06-01 to 2021-05-31 |
2020-06-01 to 2021-05-31 |
2020-06-01 to 2021-05-31 |
2020-06-01 to 2021-05-31 |
2020-06-01 to 2021-05-31 |
2020-06-01 to 2021-05-31 |
2020-06-01 to 2021-05-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||
| Decrease (increase) through tax on share-based payment transactions, equity |
300,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
300,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
300,000
GBP
|
300,000
GBP
|
–
GBP
|
–
GBP
|
| Increase (decrease) through transactions with owners, equity |
10,700,000
GBP
|
800,000
GBP
|
900,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
12,400,000
GBP
|
–
GBP
|
–
GBP
|
300,000
GBP
|
9,900,000
GBP
|
62,700,000
GBP
|
72,300,000
GBP
|
–
GBP
|