Disclosure Of Fair Value Measurement [Text Block]
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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 | — | — | — |
411,3 6 6
GBP
|
— | — | — | — | — | — | — | — |
383, 983
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 | — | — | — |
203,058,000
GBP
|
— | — | — | — | — | — | — | — |
19 8 ,6 9 3
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 |
11 , 5 2 7
GBP
|
2, 000
GBP
|
96,247,000
GBP
|
208,308,000
GBP
|
5,05 8
GBP
|
3,0 9 9
GBP
|
2 0 8 , 2 12
GBP
|
3,57 4
GBP
|
93,8 55
GBP
|
96,000
GBP
|
11 , 5 2 7
GBP
|
3,739,000
GBP
|
18 5,2 9 0
GBP
|
4,0 9 0
GBP
|
—
GBP
|
18 5 , 2 9 0
GBP
|
2 , 000
GBP
|
74 , 6 5 8
GBP
|
9 3,8 5 5
GBP
|
2,8 9 9
GBP
|
2 , 4 0 1
GBP
|
11 , 5 2 7
GBP
|
701,000
GBP
|
—
GBP
|
2 , 000
GBP
|
1 75 ,555
GBP
|
1 75 , 555
GBP
|
1, 41 0
GBP
|
6 8,4 6 3
GBP
|
9 3,8 5 5
GBP
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |