Disclosure Of Earnings Per Share [Text Block]
| Concept |
2020-12-28 to 2021-12-26 |
2020-12-28 to 2021-12-26 |
2020-12-28 to 2021-12-26 |
2019-12-30 to 2020-12-27 |
2019-12-30 to 2020-12-27 |
2019-12-30 to 2020-12-27 |
|---|---|---|---|---|---|---|
| Disclosure of earnings per share [text block] | — | — | — | — | — | — |
| Earnings per share [text block] | — | — | — | — | — | — |
| Earnings per share [abstract] | ||||||
| Earnings per share [line items] | ||||||
| Basic earnings per share [abstract] | ||||||
| Basic earnings (loss) per share from continuing operations | — |
0.198
|
2 0.3
|
— |
0.182
|
17 .8
|
| Basic earnings (loss) per share | — |
1 7. 1
|
— | — | — |
0.089
|
| Diluted earnings per share [abstract] | ||||||
| Diluted earnings (loss) per share from continuing operations | — |
1 9.6
|
2 0. 2
|
— |
1 8 .1
|
1 7.7
|
| Diluted earnings (loss) per share | — |
1 7. 0
|
— | — | — |
0.088
|
| Adjustments to reconcile profit (loss) to numerator used in calculating earnings per share [abstract] | ||||||
| Profit (loss), attributable to owners of parent |
1 5 .1
GBP
|
78,300,000
GBP
|
93,400,000
GBP
|
4 3 . 2
GBP
|
84,300,000
GBP
|
4 1 .1
GBP
|
| Disclosure of depositary receipts [text block] | — | — | — | — | — | — |
| Disclosure of depositary receipts [abstract] | ||||||
| Disclosure of depositary receipts [line items] |