Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|
| 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 |
18,200,000
GBP
|
15,700,000
GBP
|
| Other expense, by function |
15,600,000
GBP
|
16,200,000
GBP
|
| Tax expense (income) |
13,600,000
GBP
|
100,000
GBP
|