Statement Of Cash Flows [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) operating activities [abstract] | ||
| Adjustments for decrease (increase) in trade and other receivables |
15,308,000
GBP
|
17,894,000
GBP
|
| Adjustments for increase (decrease) in trade and other payables |
143,604,000
GBP
|
97,208,000
GBP
|
| Income taxes paid, classified as operating activities |
39,000,000
GBP
|
34,712,000
GBP
|
| Cash flows from (used in) investing activities [abstract] | ||
| Cash advances and loans made to related parties |
126,423,000
GBP
|
17,869,000
GBP
|