Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2024-06-30 |
As at 2024-06-30 |
As at 2024-06-30 |
As at 2024-06-30 |
As at 2023-06-30 |
As at 2023-06-30 |
As at 2023-06-30 |
As at 2023-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — | — |
1,367,300,000
GBP
|
— | — |
1,318,600,000
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 | — | — |
1,346,500,000
GBP
|
— | — |
1,296,800,000
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 |
600,000
GBP
|
48,600,000
GBP
|
20,800,000
GBP
|
68,800,000
GBP
|
48,500,000
GBP
|
21,800,000
GBP
|
1,500,000
GBP
|
68,800,000
GBP
|
1,700,000
GBP
|
48,300,000
GBP
|
22,200,000
GBP
|
68,800,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |