Statement Of Changes In Equity [Abstract]
| Concept |
2023-04-01 to 2024-03-31 |
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2023-04-01 to 2024-03-31 |
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2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
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| Statement of changes in equity [abstract] | ||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||
| Sale or issue of treasury shares |
9. 2
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
9,200,000
GBP
|
–
GBP
|
–
GBP
|
9. 2
GBP
|
–
GBP
|
–
GBP
|
9. 2
GBP
|
–
GBP
|
18,000,000
GBP
|
–
GBP
|
18 .0
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
18 .0
GBP
|
–
GBP
|
–
GBP
|
18 .0
GBP
|