Disclosure Of Income Tax [Text Block]
| Concept |
As at 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2021-04-01 to 2022-03-31 |
As at 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
|---|---|---|---|---|---|---|---|---|
| Disclosure of income tax [text block] | — | — | — |
|
— | — | — | — |
| Major components of tax expense (income) [abstract] | ||||||||
| Tax expense (income) | — |
15,700,000
GBP
|
72,900,000
GBP
|
57,200,000
GBP
|
60,200,000
GBP
|
— |
68,300,000
GBP
|
8,100,000
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
|
400,000
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 |
3,000,000
GBP
|
— | — | — | — |
2,400,000
GBP
|
— | — |
| Deferred tax liabilities |
70,200,000
GBP
|
— | — | — | — |
58,500,000
GBP
|
— | — |
| Reconciliation of accounting profit multiplied by applicable tax rates [abstract] |