Disclosure Of Income Tax [Text Block]
| Concept |
As at 2022-01-31 |
2021-02-01 to 2022-01-31 |
As at 2021-01-31 |
2020-02-01 to 2021-01-31 |
|---|---|---|---|---|
| Disclosure of income tax [text block] | — | — | — | — |
| Major components of tax expense (income) [abstract] | ||||
| Tax expense (income) | — |
4,500,000
GBP
|
— |
6,600,000
GBP
|
| Income tax relating to components of other comprehensive income [abstract] | ||||
| Income tax relating to cash flow hedges included in other comprehensive income | — |
300,000
GBP
|
— |
3,500,000
GBP
|
| Income tax relating to remeasurements of defined benefit plans included in other comprehensive income | — |
1,200,000
GBP
|
— |
200,000
GBP
|
| Income tax relating to financial assets measured at fair value through other comprehensive income included in other comprehensive income | — |
2,100,000
GBP
|
— |
800,000
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 |
12,300,000
GBP
|
— |
12,500,000
GBP
|
— |
| Deferred tax liabilities |
5,600,000
GBP
|
— |
5,800,000
GBP
|
— |
| Reconciliation of accounting profit multiplied by applicable tax rates [abstract] |