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 |
2,800,000
GBP
|
600,000
GBP
|
| Adjustments for increase (decrease) in trade and other payables |
700,000
GBP
|
2,400,000
GBP
|
| Adjustments for amortisation expense |
800,000
GBP
|
800,000
GBP
|
| Adjustments for depreciation expense |
2,300,000
GBP
|
2,200,000
GBP
|
| Adjustments for gain (loss) on disposals, property, plant and equipment |
–
GBP
|
100,000
GBP
|
| Income taxes paid, classified as operating activities |
3,800,000
GBP
|
3,800,000
GBP
|
| Cash flows from (used in) financing activities [abstract] | ||
| Dividends paid to equity holders of parent, classified as financing activities |
32,700,000
GBP
|
44,200,000
GBP
|