Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
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As at 2023-03-31 |
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As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
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As at 2022-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — | — | — | — |
178,200,000
GBP
|
— | — |
219,100,000
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 | — | — | — | — |
178,200,000
GBP
|
— | — |
206,500,000
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 |
295,200,000
GBP
|
86,100,000
GBP
|
207,900,000
GBP
|
1,200,000
GBP
|
0
GBP
|
-
GBP
|
295,200,000
GBP
|
12,600,000
GBP
|
207,900,000
GBP
|
1,200,000
GBP
|
-
GBP
|
98,700,000
GBP
|
1,200,000
GBP
|
295,200,000
GBP
|
207,900,000
GBP
|
100,000
GBP
|
47,900,000
GBP
|
133,900,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |