Statement Of Changes In Equity [Abstract]
| Concept |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
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| Statement of changes in equity [abstract] | ||||||||||||
| Statement of changes in equity [line items] | ||||||||||||
| Decrease (increase) through tax on share-based payment transactions, equity |
–
GBP
|
–
GBP
|
–
GBP
|
0. 5
GBP
|
–
GBP
|
0. 5
GBP
|
–
GBP
|
–
GBP
|
0. 5
GBP
|
0 . 5
GBP
|
–
GBP
|
–
GBP
|
| Increase (decrease) through transactions with owners, equity |
–
GBP
|
–
GBP
|
–
GBP
|
12. 7
GBP
|
–
GBP
|
1 2.7
GBP
|
–
GBP
|
–
GBP
|
8 .9
GBP
|
8 .9
GBP
|
–
GBP
|
–
GBP
|