Statement Of Cash Flows [Abstract]
| Concept |
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 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 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||||||||||||||||||
| Cash flows from (used in) operating activities [abstract] | |||||||||||||||||||||
| Profit (loss) |
0. 5
GBP
|
–
GBP
|
–
GBP
|
5 9.5
GBP
|
— |
–
GBP
|
–
GBP
|
–
GBP
|
6 0.0
GBP
|
5 9.5
GBP
|
0 .8
GBP
|
–
GBP
|
0 .4
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
0. 4
GBP
|
–
GBP
|
0. 4
GBP
|
— |
| Cash flows from (used in) operating activities | — | — | — | — | — | — | — | — |
14 4 . 3
GBP
|
— |
1 3 9 .1
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Cash flows from (used in) investing activities [abstract] | |||||||||||||||||||||
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — | — | — | — | — | — | — | — |
66 .0
GBP
|
— |
6 6 .7
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Proceeds from sales of property, plant and equipment, classified as investing activities | — | — | — | — | — | — | — | — |
11 .7
GBP
|
— |
1. 9
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Purchase of property, plant and equipment, classified as investing activities | — | — | — | — | — | — | — | — |
4 5 .1
GBP
|
— |
5 7. 8
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Purchase of intangible assets, classified as investing activities | — | — | — | — | — | — | — | — |
6 .9
GBP
|
— |
2 .1
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Interest received, classified as investing activities | — | — | — | — | — | — | — | — |
0. 3
GBP
|
— |
300,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Cash flows from (used in) investing activities | — | — | — | — | — | — | — | — |
1 0 4 . 5
GBP
|
— |
12 4 . 4
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Cash flows from (used in) financing activities [abstract] | |||||||||||||||||||||
| Payments to acquire or redeem entity's shares | — | — | — | — | — | — | — | — |
–
GBP
|
— |
500,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Proceeds from borrowings, classified as financing activities | — | — | — | — | — | — | — | — |
155 .5
GBP
|
— |
10 1. 9
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Repayments of borrowings, classified as financing activities | — | — | — | — | — | — | — | — |
11 6 . 9
GBP
|
— |
6 2 .1
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Payments of lease liabilities, classified as financing activities | — | — | — | — | — | — | — | — |
14 . 4
GBP
|
— |
15 . 5
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Dividends paid, classified as financing activities | — | — | — | — | — | — | — | — |
4 9. 0
GBP
|
— |
2 5 .1
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Interest paid, classified as financing activities | — | — | — | — | — | — | — | — |
5 .5
GBP
|
— |
5,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Cash flows from (used in) financing activities | — | — | — | — | — | — | — | — |
30. 3
GBP
|
— |
6,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | — | — | — | — | — | — | — |
9. 5
GBP
|
— |
8 .4
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||||||||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — | — | — | — | — | — | — |
0. 8
GBP
|
— |
0 .1
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — |
3 7. 9
GBP
|
— | — | — | — | — | — | — | — | — | — |
29. 2
GBP
|
— | — | — | — |
20 .9
GBP
|