Statement Of Cash Flows [Abstract]
| Concept |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||||||||||
| Cash flows from (used in) operating activities [abstract] | |||||||||||||
| Profit (loss) | — |
–
GBP
|
67,700,000
GBP
|
–
GBP
|
67,700,000
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
–
GBP
|
29. 2
GBP
|
2 9.2
GBP
|
— |
| Adjustments to reconcile profit (loss) [abstract] | |||||||||||||
| Adjustments for finance costs | — | — |
15 .0
GBP
|
— | — | — | — | — | — | — |
12,400,000
GBP
|
— | — |
| Adjustments for depreciation and amortisation expense | — | — |
600,000
GBP
|
— | — | — | — | — | — | — |
500,000
GBP
|
— | — |
| Adjustments for share-based payments | — | — |
0 .7
GBP
|
— | — | — | — | — | — | — |
200,000
GBP
|
— | — |
| Adjustments for fair value losses (gains) | — | — |
4 5 . 6
GBP
|
— | — | — | — | — | — | — |
1 7. 6
GBP
|
— | — |
| Cash flows from (used in) operations | — | — |
6 .7
GBP
|
— | — | — | — | — | — | — |
19,400,000
GBP
|
— | — |
| Cash flows from (used in) operating activities | — | — |
4 3.6
GBP
|
— | — | — | — | — | — | — |
4 2.4
GBP
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||||||||||
| Purchase of property, plant and equipment, classified as investing activities | — | — |
1. 0
GBP
|
— | — | — | — | — | — | — |
0 .4
GBP
|
— | — |
| Purchase of intangible assets, classified as investing activities | — | — |
0. 9
GBP
|
— | — | — | — | — | — | — |
0. 5
GBP
|
— | — |
| Cash flows from (used in) investing activities | — | — |
9 .4
GBP
|
— | — | — | — | — | — | — |
1,300,000
GBP
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||||||||||
| Proceeds from borrowings, classified as financing activities | — | — |
36. 2
GBP
|
— | — | — | — | — | — | — |
–
GBP
|
— | — |
| Repayments of borrowings, classified as financing activities | — | — |
2 0. 0
GBP
|
— | — | — | — | — | — | — |
15 . 0
GBP
|
— | — |
| Payments of lease liabilities, classified as financing activities | — | — |
0. 1
GBP
|
— | — | — | — | — | — | — |
–
GBP
|
— | — |
| Dividends paid, classified as financing activities | — | — |
16. 7
GBP
|
— | — | — | — | — | — | — |
1 3.6
GBP
|
— | — |
| Cash flows from (used in) financing activities | — | — |
1 5. 5
GBP
|
— | — | — | — | — | — | — |
4 0. 5
GBP
|
— | — |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — | — |
18 .7
GBP
|
— | — | — | — | — | — | — |
3,200,000
GBP
|
— | — |
| Cash and cash equivalents |
55,800,000
GBP
|
— | — | — | — | — |
3 7. 1
GBP
|
— | — | — | — | — |
3 3 .9
GBP
|