Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2023-06-30 |
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2022-07-01 to 2023-06-30 |
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As at 2021-06-30 |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of fair value measurement [text block] | — | — | — | — | — | — | — |
(c) Fair values
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 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 | — | — | — | — | — | — |
738,400,000
GBP
|
— | — | — | — | — | — | — | — |
856,700,000
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 | — | — | — | — | — | — |
408,400,000
GBP
|
— | — | — | — | — | — | — | — |
431,600,000
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 |
14,000,000
GBP
|
61,600,000
GBP
|
300,000
GBP
|
329,700,000
GBP
|
33,400,000
GBP
|
155,700,000
GBP
|
330,000,000
GBP
|
— |
65,000,000
GBP
|
156,500,000
GBP
|
155,700,000
GBP
|
100,000
GBP
|
33,400,000
GBP
|
14,600,000
GBP
|
425,200,000
GBP
|
425,100,000
GBP
|
65,000,000
GBP
|
360,300,000
GBP
|
33,400,000
GBP
|
14,600,000
GBP
|
155,700,000
GBP
|
65,000,000
GBP
|
100,000
GBP
|
91,700,000
GBP
|
–
GBP
|
900,000
GBP
|
360,400,000
GBP
|
65,000,000
GBP
|
92,600,000
GBP
|
900,000
GBP
|
361,300,000
GBP
|
–
GBP
|
900,000
GBP
|
–
GBP
|
–
GBP
|
33,400,000
GBP
|
361,200,000
GBP
|
100,000
GBP
|
155,700,000
GBP
|
–
GBP
|
14,600,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |