Statement Of Changes In Equity [Abstract]
| Concept |
2021-10-03 to 2022-10-01 |
2021-10-03 to 2022-10-01 |
2021-10-03 to 2022-10-01 |
2021-10-03 to 2022-10-01 |
2021-10-03 to 2022-10-01 |
2021-10-03 to 2022-10-01 |
2021-10-03 to 2022-10-01 |
2021-10-03 to 2022-10-01 |
2020-10-04 to 2021-10-02 |
2020-10-04 to 2021-10-02 |
2020-10-04 to 2021-10-02 |
2020-10-04 to 2021-10-02 |
2020-10-04 to 2021-10-02 |
2020-10-04 to 2021-10-02 |
2020-10-04 to 2021-10-02 |
2020-10-04 to 2021-10-02 |
2020-10-04 to 2021-10-02 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||
| Increase (decrease) through appropriation of retained earnings, equity |
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
200,000
GBP
|
200,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
15,100,000
GBP
|
38,800,000
GBP
|
–
GBP
|
23,700,000
GBP
|
–
GBP
|
–
GBP
|
| Increase (decrease) through transactions with owners, equity |
–
GBP
|
–
GBP
|
200,000
GBP
|
–
GBP
|
300,000
GBP
|
300,000
GBP
|
200,000
GBP
|
–
GBP
|
–
GBP
|
8,100,000
GBP
|
–
GBP
|
14,400,000
GBP
|
45,400,000
GBP
|
–
GBP
|
23,700,000
GBP
|
800,000
GBP
|
–
GBP
|
| Sale or issue of treasury shares |
–
GBP
|
–
GBP
|
200,000
GBP
|
–
GBP
|
–
GBP
|
200,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
100,000
GBP
|
–
GBP
|
–
GBP
|
700,000
GBP
|
–
GBP
|
–
GBP
|
800,000
GBP
|
–
GBP
|