Statement Of Changes In Net Assets Available For Benefits [Abstract]
| Concept |
2023-12-31 to 2024-12-28 |
2023-01-01 to 2023-12-30 |
|---|---|---|
| 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] | ||
| Tax expense (income) |
1,700,000
GBP
|
400,000
GBP
|