Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2024-02-01 to 2024-12-31 |
2024-02-01 to 2024-12-31 |
2024-02-01 to 2024-12-31 |
2023-01-01 to 2024-01-31 |
2023-01-01 to 2024-01-31 |
2023-01-01 to 2024-01-31 |
|---|---|---|---|---|---|---|
| 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 |
4,100,000
GBP
|
19,800,000
GBP
|
23,900,000
GBP
|
11,800,000
GBP
|
11,800,000
GBP
|
–
GBP
|
| Tax expense (income) |
400,000
GBP
|
2,100,000
GBP
|
2,500,000
GBP
|
1,600,000
GBP
|
1,600,000
GBP
|
–
GBP
|