Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2023-09-30 |
As at 2023-09-30 |
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As at 2022-09-30 |
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As at 2021-09-30 |
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As at 2021-09-30 |
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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 | — | — | — | — | — | — |
175,021,000
GBP
|
— | — |
188,181,000
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 | — | — | — | — | — | — |
37,775,000
GBP
|
— | — |
54,331,000
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 |
7,463,000
GBP
|
42,000
GBP
|
105,120,000
GBP
|
23,484,000
GBP
|
1,223,000
GBP
|
2,000
GBP
|
137,246,000
GBP
|
311,000
GBP
|
23,484,000
GBP
|
133,850,000
GBP
|
96,082,000
GBP
|
1,217,000
GBP
|
13,383,000
GBP
|
5,000
GBP
|
292,000
GBP
|
4,000
GBP
|
1,820,000
GBP
|
80,083,000
GBP
|
106,299,000
GBP
|
1,208,000
GBP
|
23,484,000
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |