Statement Of Changes In Equity [Abstract]
| Concept |
As at 2024-03-31 |
2023-04-01 to 2024-03-31 |
As at 2024-03-31 |
2023-04-01 to 2024-03-31 |
As at 2024-03-31 |
2023-04-01 to 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
2023-04-01 to 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
2023-04-01 to 2024-03-31 |
As at 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 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
As at 2024-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
As at 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
As at 2023-03-31 |
2022-04-01 to 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Equity |
59,200,000
GBP
|
— |
20,400,000
GBP
|
— |
137,800,000
GBP
|
— |
6,300,000
GBP
|
36,500,000
GBP
|
— |
–
GBP
|
108,500,000
GBP
|
1,400,000
GBP
|
–
GBP
|
500,000
GBP
|
— |
137,800,000
GBP
|
— | — | — | — | — | — | — |
9,400,000
GBP
|
— | — |
15,500,000
GBP
|
— | — |
105,700,000
GBP
|
— |
6,300,000
GBP
|
105,700,000
GBP
|
108,200,000
GBP
|
1,400,000
GBP
|
–
GBP
|
500,000
GBP
|
— | — | — | — | — |
–
GBP
|
63,300,000
GBP
|
59,200,000
GBP
|
9,400,000
GBP
|
— | — |
500,000
GBP
|
3,000,000
GBP
|
–
GBP
|
73,400,000
GBP
|
3,000,000
GBP
|
22,200,000
GBP
|
1,200,000
GBP
|
104,400,000
GBP
|
60,700,000
GBP
|
72,400,000
GBP
|
11,800,000
GBP
|
1,000,000
GBP
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
–
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— | — |
24,700,000
GBP
|
— | — | — | — | — |
24,700,000
GBP
|
— |
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
24,700,000
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
— |
2,400,000
GBP
|
2,600,000
GBP
|
— |
–
GBP
|
— | — | — | — | — | — |
–
GBP
|
2,600,000
GBP
|
–
GBP
|
–
GBP
|
200,000
GBP
|
— | — | — | — |
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Comprehensive income | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
24,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
8,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Issue of equity | — |
–
GBP
|
— |
–
GBP
|
— |
–
GBP
|
— | — |
300,000
GBP
|
— | — | — | — | — |
300,000
GBP
|
— |
300,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through other changes, equity | — |
–
GBP
|
— |
2,200,000
GBP
|
— |
–
GBP
|
— | — |
–
GBP
|
— | — | — | — | — |
–
GBP
|
— |
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
2,200,000
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
— |
–
GBP
|
— | — | — | — | — | — |
–
GBP
|
1,900,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — |
1,900,000
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
–
GBP
|
3,300,000
GBP
|
— |
2,500,000
GBP
|
3,300,000
GBP
|
— |
–
GBP
|
— | — | — | — | — | — |
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
800,000
GBP
|
— | — | — | — |
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
–
GBP
|
— |
7,100,000
GBP
|
— |
–
GBP
|
— | — |
7,100,000
GBP
|
— | — | — | — | — |
7,100,000
GBP
|
— |
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
— |
5,500,000
GBP
|
5,500,000
GBP
|
— |
–
GBP
|
— | — | — | — | — | — |
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — |
5,500,000
GBP
|
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |