Statement Of Cash Flows [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) investing activities [abstract] | ||
| Purchase of interests in investments accounted for using equity method |
7. 8
GBP
|
2 .9
GBP
|
| Purchase of property, plant and equipment, intangible assets other than goodwill, investment property and other non-current assets |
24 .7
GBP
|
4 4 . 9
GBP
|
| Proceeds from disposals of property, plant and equipment, intangible assets other than goodwill, investment property and other non-current assets |
3,100,000
GBP
|
13,400,000
GBP
|
| Cash flows from (used in) financing activities [abstract] | ||
| Proceeds from exercise of options |
600,000
GBP
|
0. 2
GBP
|