Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
2022-12-26 to 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-25 |
As at 2022-12-25 |
As at 2022-12-25 |
As at 2022-12-25 |
As at 2022-12-25 |
As at 2022-12-25 |
As at 2022-12-25 |
As at 2021-12-26 |
As at 2021-12-26 |
As at 2021-12-26 |
As at 2021-12-26 |
As at 2021-12-26 |
As at 2021-12-26 |
As at 2021-12-26 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of fair value measurement [text block] | — | — | — |
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of assets [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of assets [abstract] | ||||||||||||||||||||||
| Disclosure of fair value measurement of assets [line items] | ||||||||||||||||||||||
| Assets |
512,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
520,700,000
GBP
|
— | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, assets [abstract] | ||||||||||||||||||||||
| Disclosure of fair value measurement of liabilities [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of liabilities [abstract] | ||||||||||||||||||||||
| Disclosure of fair value measurement of liabilities [line items] | ||||||||||||||||||||||
| Liabilities |
646,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — |
633,500,000
GBP
|
— | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, liabilities [abstract] | ||||||||||||||||||||||
| Disclosure of fair value measurement of equity [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of equity [abstract] | ||||||||||||||||||||||
| Disclosure of fair value measurement of equity [line items] | ||||||||||||||||||||||
| Equity |
134,000,000
GBP
|
171,100,000
GBP
|
500,000
GBP
|
— |
49,600,000
GBP
|
2,100,000
GBP
|
2,600,000
GBP
|
12,500,000
GBP
|
9,000,000
GBP
|
500,000
GBP
|
2,200,000
GBP
|
49,600,000
GBP
|
500,000
GBP
|
112,800,000
GBP
|
156,600,000
GBP
|
2,300,000
GBP
|
105,400,000
GBP
|
1,000,000
GBP
|
58,600,000
GBP
|
49,600,000
GBP
|
4,600,000
GBP
|
500,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |