Statement Of Cash Flows [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
As at 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||||||||||||||
| Cash flows from (used in) operating activities [abstract] | ||||||||||||||||
| Profit (loss) |
147 .0
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
147 .0
GBP
|
–
GBP
|
–
GBP
|
78. 1
GBP
|
— |
–
GBP
|
–
GBP
|
78. 1
GBP
|
–
GBP
|
| Adjustments to reconcile profit (loss) [abstract] | ||||||||||||||||
| Adjustments for income tax expense |
43,600,000
GBP
|
— | — | — | — | — | — | — | — | — |
2,600,000
GBP
|
— | — | — | — | — |
| Adjustments for finance costs |
6. 9
GBP
|
— | — | — | — | — | — | — | — | — |
14,500,000
GBP
|
— | — | — | — | — |
| Adjustments for decrease (increase) in inventories |
12,500,000
GBP
|
— | — | — | — | — | — | — | — | — |
7 .6
GBP
|
— | — | — | — | — |
| Adjustments for decrease (increase) in other operating receivables |
2 .9
GBP
|
— | — | — | — | — | — | — | — | — |
700,000
GBP
|
— | — | — | — | — |
| Adjustments for increase (decrease) in other operating payables |
0 .9
GBP
|
— | — | — | — | — | — | — | — | — |
12,300,000
GBP
|
— | — | — | — | — |
| Adjustments for provisions |
6,300,000
GBP
|
— | — | — | — | — | — | — | — | — |
2,300,000
GBP
|
— | — | — | — | — |
| Adjustments for share-based payments |
2,200,000
GBP
|
— | — | — | — | — | — | — | — | — |
1,500,000
GBP
|
— | — | — | — | — |
| Adjustments for losses (gains) on disposal of non-current assets |
–
GBP
|
— | — | — | — | — | — | — | — | — |
1,000,000
GBP
|
— | — | — | — | — |
| Interest paid, classified as operating activities |
10,300,000
GBP
|
— | — | — | — | — | — | — | — | — |
15,400,000
GBP
|
— | — | — | — | — |
| Income taxes paid (refund), classified as operating activities |
500,000
GBP
|
— | — | — | — | — | — | — | — | — |
10,500,000
GBP
|
— | — | — | — | — |
| Cash flows from (used in) operating activities |
12,700,000
GBP
|
— | — | — | — | — | — | — | — | — |
16. 1
GBP
|
— | — | — | — | — |
| Cash flows from (used in) investing activities [abstract] | ||||||||||||||||
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities |
–
GBP
|
— | — | — | — | — | — | — | — | — |
1,600,000
GBP
|
— | — | — | — | — |
| Proceeds from sales of property, plant and equipment, classified as investing activities |
2,700,000
GBP
|
— | — | — | — | — | — | — | — | — |
200,000
GBP
|
— | — | — | — | — |
| Purchase of property, plant and equipment, classified as investing activities |
7 . 9
GBP
|
— | — | — | — | — | — | — | — | — |
4,800,000
GBP
|
— | — | — | — | — |
| Proceeds from sales of other long-term assets, classified as investing activities |
–
GBP
|
— | — | — | — | — | — | — | — | — |
0 .9
GBP
|
— | — | — | — | — |
| Interest received, classified as investing activities |
200,000
GBP
|
— | — | — | — | — | — | — | — | — |
–
GBP
|
— | — | — | — | — |
| Cash flows from (used in) investing activities |
12,600,000
GBP
|
— | — | — | — | — | — | — | — | — |
20 .8
GBP
|
— | — | — | — | — |
| Cash flows from (used in) financing activities [abstract] | ||||||||||||||||
| Proceeds from issuing shares |
–
GBP
|
— | — | — | — | — | — | — | — | — |
118. 1
GBP
|
— | — | — | — | — |
| Payments to acquire or redeem entity's shares |
0 .5
GBP
|
— | — | — | — | — | — | — | — | — |
3,700,000
GBP
|
— | — | — | — | — |
| Proceeds from borrowings, classified as financing activities |
244,700,000
GBP
|
— | — | — | — | — | — | — | — | — |
240,000,000
GBP
|
— | — | — | — | — |
| Repayments of borrowings, classified as financing activities |
231. 1
GBP
|
— | — | — | — | — | — | — | — | — |
313. 9
GBP
|
— | — | — | — | — |
| Payments of lease liabilities, classified as financing activities |
6. 1
GBP
|
— | — | — | — | — | — | — | — | — |
6,700,000
GBP
|
— | — | — | — | — |
| Dividends paid, classified as financing activities |
–
GBP
|
— | — | — | — | — | — | — | — | — |
11,600,000
GBP
|
— | — | — | — | — |
| Cash flows from (used in) financing activities |
7. 0
GBP
|
— | — | — | — | — | — | — | — | — |
23,400,000
GBP
|
— | — | — | — | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes |
7. 1
GBP
|
— | — | — | — | — | — | — | — | — |
13,500,000
GBP
|
— | — | — | — | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||||||||||||||
| Effect of exchange rate changes on cash and cash equivalents |
1,100,000
GBP
|
— | — | — | — | — | — | — | — | — |
2,400,000
GBP
|
— | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — |
57 .3
GBP
|
— | — | — | — | — |
8. 7
GBP
|
— | — | — | — |