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 finance income |
400,000
GBP
|
800,000
GBP
|
| Cash flows from (used in) operations before changes in working capital |
55,100,000
GBP
|
37,000,000
GBP
|
| Adjustments for decrease (increase) in trade and other receivables |
16,600,000
GBP
|
23,200,000
GBP
|
| Adjustments for increase (decrease) in trade and other payables |
5,400,000
GBP
|
4,800,000
GBP
|
| Adjustments for depreciation and amortisation expense and impairment loss (reversal of impairment loss) recognised in profit or loss |
9,200,000
GBP
|
35,800,000
GBP
|
| Adjustments for depreciation expense |
13,500,000
GBP
|
16,200,000
GBP
|
| Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss, property, plant and equipment |
7,300,000
GBP
|
–
GBP
|
| Adjustments for gain (loss) on disposals, property, plant and equipment |
11,100,000
GBP
|
100,000
GBP
|
| Adjustments for gain (loss) on disposal of investments in subsidiaries, joint ventures and associates |
100,000
GBP
|
–
GBP
|