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 |
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 |
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 |
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
|
–
GBP
|
82,500,000
GBP
|
8 5 .1
GBP
|
2 .6
GBP
|
25 5. 5
GBP
|
338 . 0
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
0. 5
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
1 0 5 .1
GBP
|
25,900,000
GBP
|
–
GBP
|
–
GBP
|
7 9. 2
GBP
|
7 9 .7
GBP
|
— |
| Cash flows from (used in) operations | — | — | — |
320 .3
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
35 4. 5
GBP
|
— | — |
| Interest paid, classified as operating activities | — | — | — |
77 .2
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
6 0 . 5
GBP
|
— | — |
| Interest received, classified as operating activities | — | — | — |
3,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
0 .1
GBP
|
— | — |
| Income taxes paid (refund), classified as operating activities | — | — | — |
3 8 .7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
12 . 4
GBP
|
— | — |
| Cash flows from (used in) operating activities | — | — | — |
2 0 7. 7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
30 6 .5
GBP
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||||||||||||||||||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
18 3 .7
GBP
|
— | — |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — | — | — |
7. 6
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2 03. 5
GBP
|
— | — |
| Proceeds from sales of property, plant and equipment, classified as investing activities | — | — | — |
1,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
700,000
GBP
|
— | — |
| Purchase of property, plant and equipment, classified as investing activities | — | — | — |
163,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
19 1. 0
GBP
|
— | — |
| Purchase of intangible assets, classified as investing activities | — | — | — |
1 0 . 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1 8 . 7
GBP
|
— | — |
| Cash flows from (used in) investing activities | — | — | — |
1 8 0 .7
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2 28 .8
GBP
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||||||||||||||||||||
| Proceeds from issuing shares | — | — | — |
1. 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,400,000
GBP
|
— | — |
| Proceeds from borrowings, classified as financing activities | — | — | — |
18 8 . 5
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
302,600,000
GBP
|
— | — |
| Repayments of borrowings, classified as financing activities | — | — | — |
1 8 6 . 4
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2 5 6 . 3
GBP
|
— | — |
| Payments of lease liabilities, classified as financing activities | — | — | — |
1 8 . 0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
13 . 2
GBP
|
— | — |
| Dividends paid, classified as financing activities | — | — | — |
7 8 .9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
7 0 . 9
GBP
|
— | — |
| Cash flows from (used in) financing activities | — | — | — |
111 . 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
5 0 . 4
GBP
|
— | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | — | — |
8 4. 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2 7. 3
GBP
|
— | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||||||||||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — | — |
5,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
300,000
GBP
|
— | — |
| Cash and cash equivalents |
238 .0
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
3 17. 4
GBP
|
— | — | — | — | — | — | — |
28 9. 8
GBP
|