Statement Of Cash Flows [Abstract]
| Concept |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||||||||||||||||||||
| Cash flows from (used in) operating activities [abstract] | ||||||||||||||||||||||
| Profit (loss) | — |
–
GBP
|
–
GBP
|
225,000,000
GBP
|
224,700,000
GBP
|
300,000
GBP
|
53,100,000
GBP
|
278,100,000
GBP
|
224,700,000
GBP
|
–
GBP
|
–
GBP
|
300,000
GBP
|
–
GBP
|
234,600,000
GBP
|
— |
–
GBP
|
–
GBP
|
15,100,000
GBP
|
250,000,000
GBP
|
–
GBP
|
234,900,000
GBP
|
234,600,000
GBP
|
| Adjustments to reconcile profit (loss) [abstract] | ||||||||||||||||||||||
| Adjustments for finance costs | — | — | — |
10,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
6,400,000
GBP
|
— |
| Adjustments for decrease (increase) in inventories | — | — | — |
58,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
26,700,000
GBP
|
— |
| Adjustments for provisions | — | — | — |
800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,000,000
GBP
|
— |
| Adjustments for share-based payments | — | — | — |
8,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
9,200,000
GBP
|
— |
| Adjustments for losses (gains) on disposal of non-current assets | — | — | — |
1,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
500,000
GBP
|
— |
| Cash flows from (used in) operations | — | — | — |
331,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
351,500,000
GBP
|
— |
| Income taxes paid (refund), classified as operating activities | — | — | — |
90,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
78,100,000
GBP
|
— |
| Cash flows from (used in) operating activities | — | — | — |
241,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
273,400,000
GBP
|
— |
| Cash flows from (used in) investing activities [abstract] | ||||||||||||||||||||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — | — | — |
2,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
–
GBP
|
— |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — | — | — |
460,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
–
GBP
|
— |
| Proceeds from sales of property, plant and equipment, classified as investing activities | — | — | — |
4,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2,000,000
GBP
|
— |
| Purchase of property, plant and equipment, classified as investing activities | — | — | — |
104,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
52,800,000
GBP
|
— |
| Purchase of intangible assets, classified as investing activities | — | — | — |
8,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
8,100,000
GBP
|
— |
| Interest received, classified as investing activities | — | — | — |
5,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
3,400,000
GBP
|
— |
| Cash flows from (used in) investing activities | — | — | — |
571,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
58,700,000
GBP
|
— |
| Cash flows from (used in) financing activities [abstract] | ||||||||||||||||||||||
| Proceeds from issuing shares | — | — | — |
1,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,500,000
GBP
|
— |
| Payments to acquire or redeem entity's shares | — | — | — |
20,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
26,100,000
GBP
|
— |
| Proceeds from borrowings, classified as financing activities | — | — | — |
1,008,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
–
GBP
|
— |
| Repayments of borrowings, classified as financing activities | — | — | — |
511,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
77,500,000
GBP
|
— |
| Payments of lease liabilities, classified as financing activities | — | — | — |
12,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
11,700,000
GBP
|
— |
| Dividends paid, classified as financing activities | — | — | — |
103,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
91,000,000
GBP
|
— |
| Interest paid, classified as financing activities | — | — | — |
15,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
8,500,000
GBP
|
— |
| Cash flows from (used in) financing activities | — | — | — |
346,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
213,300,000
GBP
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | — | — |
16,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,400,000
GBP
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||||||||||||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — | — |
8,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
6,400,000
GBP
|
— |
| Cash and cash equivalents |
328,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
274,600,000
GBP
|
— | — | — | — | — | — | — |