Disclosure Of Effect Of Changes In Foreign Exchange Rates [Text Block]
| Concept |
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 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of effect of changes in foreign exchange rates [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of information when currency is not exchangeable into another currency [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of information when foreign operation’s functional currency is not exchangeable into presentation currency [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of summarised financial information about foreign operation [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of summarised financial information about foreign operation [abstract] | ||||||||||||||||||
| Disclosure of summarised financial information about foreign operation [line items] | ||||||||||||||||||
| Non-current assets | — |
2,399,700,000
GBP
|
— | — | — | — | — | — | — | — |
2,329,900,000
GBP
|
— | — | — | — | — | — | — |
| Current assets | — |
893,700,000
GBP
|
— | — | — | — | — | — | — | — |
699,000,000
GBP
|
— | — | — | — | — | — | — |
| Non-current liabilities | — |
1,067,600,000
GBP
|
— | — | — | — | — | — | — | — |
1,088,400,000
GBP
|
— | — | — | — | — | — | — |
| Current liabilities | — |
459,900,000
GBP
|
— | — | — | — | — | — | — | — |
345,400,000
GBP
|
— | — | — | — | — | — | — |
| Revenue | — | — | — |
–
GBP
|
1,889,600,000
GBP
|
— | — |
1,889,600,000
GBP
|
— | — | — |
1,390,300,000
GBP
|
— | — | — |
1,390,300,000
GBP
|
–
GBP
|
— |
| Profit (loss) |
2,000,000
GBP
|
— |
–
GBP
|
28,000,000
GBP
|
350,800,000
GBP
|
–
GBP
|
–
GBP
|
322,800,000
GBP
|
320,800,000
GBP
|
201,600,000
GBP
|
— |
201,600,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
228,200,000
GBP
|
26,600,000
GBP
|
–
GBP
|
| Other comprehensive income |
100,000
GBP
|
— |
–
GBP
|
— | — |
63,100,000
GBP
|
–
GBP
|
30,700,000
GBP
|
32,300,000
GBP
|
41,600,000
GBP
|
— |
26,600,000
GBP
|
–
GBP
|
100,000
GBP
|
–
GBP
|
— | — |
15,100,000
GBP
|
| Comprehensive income |
2,100,000
GBP
|
— |
–
GBP
|
— | — |
63,100,000
GBP
|
–
GBP
|
292,100,000
GBP
|
353,100,000
GBP
|
243,200,000
GBP
|
— |
228,200,000
GBP
|
–
GBP
|
100,000
GBP
|
–
GBP
|
— | — |
15,100,000
GBP
|