Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2022-03-31 |
As at 2022-03-31 |
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As at 2021-03-31 |
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As at 2020-03-31 |
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As at 2020-03-31 |
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| 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 | — | — | — | — | — |
6 3 6, 4 47
GBP
|
— | — | — | — | — |
5 7 7, 6 3 4
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 | — | — | — | — | — |
266,082,000
GBP
|
— | — | — | — | — |
177,117,000
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 |
281,000
GBP
|
1,094,000
GBP
|
73 ,19 3
GBP
|
46 , 236
GBP
|
3 2 7, 7 2 9
GBP
|
370,365,000
GBP
|
7 5,980
GBP
|
—
GBP
|
382,000
GBP
|
330,698,000
GBP
|
4 9, 3 3 4
GBP
|
40 0, 517
GBP
|
73, 299
GBP
|
4 6, 236
GBP
|
51,836,000
GBP
|
282 ,879
GBP
|
—
GBP
|
4 3 3
GBP
|
4 6, 23 6
GBP
|
72, 899
GBP
|
2 1 6, 013
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |