Statement Of Comprehensive Income [Abstract]
| Concept |
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 |
2023-04-01 to 2024-03-31 |
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 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||
| Profit (loss) |
–
GBP
|
–
GBP
|
69. 2
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
69. 2
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
1 28.9
GBP
|
–
GBP
|
128 .9
GBP
|
| Other comprehensive income [abstract] | ||||||||||||||||
| Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract] | ||||||||||||||||
| Cash flow hedges [abstract] | ||||||||||||||||
| Reclassification adjustments on cash flow hedges, before tax | — | — |
3,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
2. 5
GBP
|
| Other comprehensive income, before tax, cash flow hedges | — | — |
1 . 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
1,800,000
GBP
|
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract] | ||||||||||||||||
| Income tax relating to cash flow hedges included in other comprehensive income | — | — |
700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
200,000
GBP
|
| Other comprehensive income |
–
GBP
|
2 . 8
GBP
|
0 .9
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
1 .4
GBP
|
500,000
GBP
|
–
GBP
|
0. 4
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
5,500,000
GBP
|
5,100,000
GBP
|
| Comprehensive income |
–
GBP
|
2 . 8
GBP
|
68,300,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
1,400,000
GBP
|
6 9.7
GBP
|
–
GBP
|
0. 4
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
1 28.9
GBP
|
5,500,000
GBP
|
13 4.0
GBP
|