Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
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 |
|---|---|---|---|---|---|---|
| Statement of changes in net assets available for benefits [abstract] | ||||||
| Reconciliation of changes in net assets available for benefits [abstract] | ||||||
| Changes in net assets available for benefits [abstract] | ||||||
| Administrative expenses |
10. 3
GBP
|
52 .9
GBP
|
63. 2
GBP
|
11 .6
GBP
|
42 . 2
GBP
|
53 . 8
GBP
|
| Tax expense (income) |
2,100,000
GBP
|
1 7. 0
GBP
|
1 4.9
GBP
|
2,700,000
GBP
|
11 .7
GBP
|
9,000,000
GBP
|