Statement Of Cash Flows [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) operating activities [abstract] | ||
| Adjustments for decrease (increase) in trade and other receivables |
82,300,000
GBP
|
100,000
GBP
|
| Adjustments for increase (decrease) in trade and other payables |
50,900,000
GBP
|
81,500,000
GBP
|
| Adjustments for increase (decrease) in employee benefit liabilities |
15,000,000
GBP
|
12,100,000
GBP
|
| Adjustments for gain (loss) on disposals, property, plant and equipment |
2,600,000
GBP
|
–
GBP
|
| Cash flows from (used in) financing activities [abstract] | ||
| Payments for share issue costs |
7,600,000
GBP
|
18,600,000
GBP
|
| Payments for debt issue costs |
–
GBP
|
1,900,000
GBP
|