Statement Of Changes In Equity [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 |
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 |
2021-04-01 to 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
2020-04-01 to 2021-03-31 |
As at 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 |
2020-04-01 to 2021-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||||||||||
| Equity | — | — | — | — | — | — |
3,548,000
GBP
|
619,000
GBP
|
251,000
GBP
|
6,433,000
GBP
|
81,668,000
GBP
|
— |
107,690,000
GBP
|
15,171,000
GBP
|
9,083,000
GBP
|
662,000
GBP
|
71,989,000
GBP
|
87,608,000
GBP
|
614,000
GBP
|
5,737,000
GBP
|
— |
477,000
GBP
|
— | — | — | — | — | — |
5,610,000
GBP
|
59,154,000
GBP
|
655,000
GBP
|
664,000
GBP
|
5,446,000
GBP
|
610,000
GBP
|
46,169,000
GBP
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||
| Profit (loss) |
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
35,768,000
GBP
|
–
GBP
|
— | — | — | — | — |
35,768,000
GBP
|
— | — | — | — | — | — | — | — |
–
GBP
|
— |
–
GBP
|
–
GBP
|
39,601,000
GBP
|
–
GBP
|
–
GBP
|
39,601,000
GBP
|
— | — | — | — | — | — | — |
| Other comprehensive income |
–
GBP
|
–
GBP
|
–
GBP
|
728,000
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — |
728,000
GBP
|
— | — | — | — | — | — | — | — |
–
GBP
|
— |
1,132,000
GBP
|
–
GBP
|
1,132,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — |
| Comprehensive income |
–
GBP
|
–
GBP
|
–
GBP
|
728,000
GBP
|
35,768,000
GBP
|
–
GBP
|
— | — | — | — | — |
36,496,000
GBP
|
— | — | — | — | — | — | — | — |
–
GBP
|
— |
1,132,000
GBP
|
–
GBP
|
38,469,000
GBP
|
–
GBP
|
–
GBP
|
39,601,000
GBP
|
— | — | — | — | — | — | — |
| Issue of equity |
–
GBP
|
–
GBP
|
2,296,000
GBP
|
–
GBP
|
–
GBP
|
5,000
GBP
|
— | — | — | — | — |
2,301,000
GBP
|
— | — | — | — | — | — | — | — |
–
GBP
|
— |
–
GBP
|
2,000
GBP
|
293,000
GBP
|
4,000
GBP
|
291,000
GBP
|
–
GBP
|
— | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
6,088,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — |
6,088,000
GBP
|
— | — | — | — | — | — | — | — |
3,473,000
GBP
|
— |
–
GBP
|
–
GBP
|
3,473,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — | — | — |