Analysis Of Income And Expense [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||
| Revenue [abstract] | ||||||
| Revenue | — |
2,359,042,000
GBP
|
— | — |
1,811,727,000
GBP
|
— |
| Material income and expense [abstract] | ||||||
| Other operating income (expense) | — |
40,659,000
GBP
|
— | — |
26,422,000
GBP
|
— |
| Selling, general and administrative expense [abstract] | ||||||
| Selling, general and administrative expense | — |
194,517,000
GBP
|
— | — |
181,595,000
GBP
|
— |
| Revenue and other operating income | — |
40,659,000
GBP
|
— | — |
26,422,000
GBP
|
— |
| Expenses by nature [abstract] | ||||||
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract] | ||||||
| Depreciation and amortisation expense [abstract] | ||||||
| Amortisation expense | — |
14,240,000
GBP
|
— | — |
14,240,000
GBP
|
— |
| Depreciation and amortisation expense | — |
32,524,000
GBP
|
— | — |
31,710,000
GBP
|
— |
| Other expenses, by nature | — |
12,225,000
GBP
|
— | — |
30,984,000
GBP
|
— |
| Disclosure of attribution of expenses by nature to their function [text block] | — | — | — | — | — | — |
| Disclosure of attribution of expenses by nature to their function [abstract] | ||||||
| Disclosure of attribution of expenses by nature to their function [line items] | ||||||
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||
| Share of profit (loss) of joint ventures accounted for using equity method | — |
29,991,000
GBP
|
— | — |
14,867,000
GBP
|
— |
| Share of profit (loss) of associates and joint ventures accounted for using equity method | — |
57,290,000
GBP
|
— | — |
34,4 72
GBP
|
— |
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||
| Comprehensive income, attributable to owners of parent |
278,815,000
GBP
|
278,815,000
GBP
|
278,815,000
GBP
|
67,283,000
GBP
|
67,283,000
GBP
|
67,283,000
GBP
|