Statement Of Comprehensive Income [Abstract]
| Concept |
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 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||||||
| Profit (loss) |
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
12 8 .9
GBP
|
128 .9
GBP
|
–
GBP
|
181 . 2
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
18 1. 2
GBP
|
–
GBP
|
–
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] | ||||||||||||||||
| Other comprehensive income, before tax, cash flow hedges | — | — | — | — | — | — | — |
0. 6
GBP
|
— | — | — | — | — |
–
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 | — | — | — | — | — | — | — |
200,000
GBP
|
— | — | — | — | — |
–
GBP
|
— | — |
| Other comprehensive income |
0 . 4
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
5,500,000
GBP
|
–
GBP
|
–
GBP
|
5,100,000
GBP
|
4. 3
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
4. 3
GBP
|
–
GBP
|
–
GBP
|
| Comprehensive income |
0 . 4
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
5,500,000
GBP
|
–
GBP
|
1 2 8 .9
GBP
|
134 .0
GBP
|
4. 3
GBP
|
18 1. 2
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
185. 5
GBP
|
–
GBP
|
–
GBP
|