Analysis Of Income And Expense [Abstract]
| Concept |
2023-12-31 to 2024-12-28 |
2023-12-31 to 2024-12-28 |
2023-12-31 to 2024-12-28 |
2023-12-31 to 2024-12-28 |
2023-01-01 to 2023-12-30 |
2023-01-01 to 2023-12-30 |
2023-01-01 to 2023-12-30 |
2023-01-01 to 2023-12-30 |
|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||
| Revenue [abstract] | ||||||||
| Interest income | — | — |
400,000
GBP
|
— | — | — |
700,000
GBP
|
— |
| Revenue | — | — |
96,000,000
GBP
|
— | — | — |
88,000,000
GBP
|
— |
| Material income and expense [abstract] | ||||||||
| Finance income (cost) | — | — |
300,000
GBP
|
— | — | — |
500,000
GBP
|
— |
| Operating expense | — | — |
23,200,000
GBP
|
— | — | — |
21,700,000
GBP
|
— |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||
| Comprehensive income |
-
GBP
|
-
GBP
|
3,600,000
GBP
|
3,600,000
GBP
|
-
GBP
|
2,700,000
GBP
|
2,700,000
GBP
|
-
GBP
|