Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-12-31 |
As at 2021-12-31 |
|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||
| Property, plant and equipment [abstract] | ||
| Property, plant and equipment |
384,500,000
GBP
|
277,400,000
GBP
|
| Intangible assets and goodwill [abstract] | ||
| Intangible assets other than goodwill [abstract] | ||
| Intangible assets other than goodwill |
500,300,000
GBP
|
255,700,000
GBP
|
| Goodwill |
703,300,000
GBP
|
411,200,000
GBP
|
| Investments accounted for using equity method [abstract] | ||
| Investments accounted for using equity method |
–
GBP
|
–
GBP
|
| Trade and other non-current receivables [abstract] | ||
| Non-current prepayments and non-current accrued income other than non-current contract assets [abstract] | ||
| Non-current prepayments |
2,000,000
GBP
|
1,300,000
GBP
|
| Non-current prepayments and non-current accrued income including non-current contract assets [abstract] | ||
| Trade and other receivables [abstract] | ||
| Trade receivables |
341,100,000
GBP
|
272,300,000
GBP
|
| Classes of current inventories [abstract] | ||
| Current inventories |
290,000,000
GBP
|
201,300,000
GBP
|
| Classes of current inventories, alternative [abstract] | ||
| Cash and cash equivalents [abstract] | ||
| Cash and cash equivalents |
328,900,000
GBP
|
274,600,000
GBP
|
| Miscellaneous current assets [abstract] | ||
| Other current assets |
79,600,000
GBP
|
44,700,000
GBP
|
| Classes of other provisions [abstract] | ||
| Other provisions [abstract] | ||
| Other non-current provisions |
6,200,000
GBP
|
1,500,000
GBP
|
| Other current provisions |
12,000,000
GBP
|
5,200,000
GBP
|
| Borrowings [abstract] | ||
| Non-current portion of non-current borrowings |
731,300,000
GBP
|
289,900,000
GBP
|
| Current borrowings and current portion of non-current borrowings [abstract] | ||
| Current portion of non-current borrowings |
202,900,000
GBP
|
59,600,000
GBP
|
| Borrowings |
934,200,000
GBP
|
349,500,000
GBP
|
| Non-current portion of non-current borrowings, by type [abstract] | ||
| Borrowings, by type [abstract] | ||
| Trade and other non-current payables [abstract] | ||
| Other non-current payables |
8,800,000
GBP
|
4,700,000
GBP
|
| Trade and other current payables [abstract] | ||
| Trade and other current payables |
283,000,000
GBP
|
217,000,000
GBP
|
| Miscellaneous non-current liabilities [abstract] | ||
| Non-current net defined benefit liability |
52,100,000
GBP
|
44,700,000
GBP
|
| Issued capital [abstract] | ||
| Issued capital |
19,800,000
GBP
|
19,800,000
GBP
|
| Retained earnings [abstract] | ||
| Retained earnings |
1,067,000,000
GBP
|
961,100,000
GBP
|
| Accumulated other comprehensive income [abstract] | ||
| Reserve of exchange differences on translation |
17,500,000
GBP
|
40,500,000
GBP
|
| Net assets (liabilities) [abstract] | ||
| Assets |
2,784,900,000
GBP
|
1,863,200,000
GBP
|
| Liabilities |
1,615,100,000
GBP
|
853,200,000
GBP
|
| Assets (liabilities) |
1,169,800,000
GBP
|
1,010,000,000
GBP
|
| Net current assets (liabilities) [abstract] | ||
| Current assets |
1,053,500,000
GBP
|
803,700,000
GBP
|
| Current liabilities |
637,500,000
GBP
|
381,700,000
GBP
|
| Current assets (liabilities) |
416,000,000
GBP
|
422,000,000
GBP
|
| Assets less current liabilities [abstract] | ||
| Net debt |
690,400,000
GBP
|
130,500,000
GBP
|