Statement Of Cash Flows [Abstract]
| Concept |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 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] | |||||
| Cash flows from (used in) operating activities | — |
17,916,000
GBP
|
— |
57,762,000
GBP
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||
| Proceeds from sales of property, plant and equipment, classified as investing activities | — |
4,000
GBP
|
— |
17,000
GBP
|
— |
| Purchase of property, plant and equipment, classified as investing activities | — |
315,000
GBP
|
— |
261,000
GBP
|
— |
| Purchase of intangible assets, classified as investing activities | — |
1,092,000
GBP
|
— |
2,514,000
GBP
|
— |
| Cash flows from (used in) investing activities | — |
8,465,000
GBP
|
— |
2,758,000
GBP
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||
| Repayments of borrowings, classified as financing activities | — |
65,000,000
GBP
|
— |
-
GBP
|
— |
| Payments of lease liabilities, classified as financing activities | — |
1,696,000
GBP
|
— |
2,551,000
GBP
|
— |
| Dividends paid, classified as financing activities | — |
-
GBP
|
— |
-
GBP
|
— |
| Interest paid, classified as financing activities | — |
24,549,000
GBP
|
— |
15,832,000
GBP
|
— |
| Cash flows from (used in) financing activities | — |
91,245,000
GBP
|
— |
18,383,000
GBP
|
— |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
81,794,000
GBP
|
— |
36,621,000
GBP
|
— |
| Cash and cash equivalents |
32,783,000
GBP
|
— |
114,577,000
GBP
|
— |
77,956,000
GBP
|