Disclosure Of Income Tax [Text Block]
| Concept |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of income tax [text block] | — | — |
7 Income tax
|
— | — | — | — | — | — | — |
| Major components of tax expense (income) [abstract] | ||||||||||
| Tax expense (income) | — | — |
160,200,000
GBP
|
— | — | — | — | — |
125,900,000
GBP
|
— |
| Income tax relating to components of other comprehensive income [abstract] | ||||||||||
| Income tax relating to components of other comprehensive income | — |
2,600,000
GBP
|
3,700,000
GBP
|
1,400,000
GBP
|
300,000
GBP
|
— |
800,000
GBP
|
–
GBP
|
19 .3
GBP
|
18,500,000
GBP
|
| Disclosure of temporary difference, unused tax losses and unused tax credits [text block] | — | — | — | — | — | — | — | — | — | — |
| Disclosure of temporary difference, unused tax losses and unused tax credits [abstract] | ||||||||||
| Disclosure of temporary difference, unused tax losses and unused tax credits [line items] | ||||||||||
| Deferred tax assets and liabilities [abstract] | ||||||||||
| Deferred tax assets |
4,000,000
GBP
|
— | — | — | — |
2,800,000
GBP
|
— | — | — | — |
| Deferred tax liabilities |
192,700,000
GBP
|
— | — | — | — |
151 .0
GBP
|
— | — | — | — |
| Reconciliation of changes in deferred tax liability (asset) [abstract] | ||||||||||
| Changes in deferred tax liability (asset) [abstract] | ||||||||||
| Reconciliation of accounting profit multiplied by applicable tax rates [abstract] |