Statement Of Comprehensive Income [Abstract]
| Concept |
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 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of comprehensive income [abstract] | ||||||||||||
| Profit (loss) |
–
GBP
|
–
GBP
|
123,900,000
GBP
|
–
GBP
|
–
GBP
|
123,900,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
235,700,000
GBP
|
235,700,000
GBP
|
–
GBP
|
| Other comprehensive income [abstract] | ||||||||||||
| Other comprehensive income |
–
GBP
|
–
GBP
|
1,800,000
GBP
|
–
GBP
|
–
GBP
|
1,800,000
GBP
|
1,200,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
1,200,000
GBP
|
–
GBP
|
| Comprehensive income |
–
GBP
|
–
GBP
|
125,700,000
GBP
|
–
GBP
|
–
GBP
|
125,700,000
GBP
|
1,200,000
GBP
|
–
GBP
|
–
GBP
|
235,700,000
GBP
|
236,900,000
GBP
|
–
GBP
|