Disclosure Of Effect Of Changes In Foreign Exchange Rates [Text Block]
| Concept |
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 |
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 |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of effect of changes in foreign exchange rates [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Reserve of exchange differences on translation | — | — | — |
2,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
400,000
GBP
|
— | — | — | — | — |
| 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 | — | — | — |
1,974,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,905,300,000
GBP
|
— | — | — | — | — |
| Current assets | — | — | — |
867,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
889,500,000
GBP
|
— | — | — | — | — |
| Non-current liabilities | — | — | — |
1,276,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,182,400,000
GBP
|
— | — | — | — | — |
| Current liabilities | — | — | — |
905,200,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
808,300,000
GBP
|
— | — | — | — | — |
| Revenue | — | — | — | — | — |
–
GBP
|
1,095,300,000
GBP
|
— | — | — | — |
1,095,300,000
GBP
|
— |
611,800,000
GBP
|
— | — | — | — |
–
GBP
|
611,800,000
GBP
|
— | — | — | — | — | — |
| Profit (loss) |
2,300,000
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
40,200,000
GBP
|
229,500,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
189,300,000
GBP
|
191. 6
GBP
|
4 10.5
GBP
|
–
GBP
|
–
GBP
|
4 19.3
GBP
|
–
GBP
|
1 33.7
GBP
|
2 76.8
GBP
|
— |
–
GBP
|
–
GBP
|
8,800,000
GBP
|
–
GBP
|
–
GBP
|
| Other comprehensive income |
–
GBP
|
–
GBP
|
4,200,000
GBP
|
— |
–
GBP
|
— | — |
–
GBP
|
2,300,000
GBP
|
–
GBP
|
–
GBP
|
7,700,000
GBP
|
9,600,000
GBP
|
3 2.8
GBP
|
–
GBP
|
–
GBP
|
4 6.8
GBP
|
13,200,000
GBP
|
— | — | — |
–
GBP
|
800,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
| Comprehensive income |
2,300,000
GBP
|
–
GBP
|
4,200,000
GBP
|
— |
–
GBP
|
— | — |
–
GBP
|
2,300,000
GBP
|
–
GBP
|
–
GBP
|
181,600,000
GBP
|
182,000,000
GBP
|
4 43.3
GBP
|
–
GBP
|
–
GBP
|
4 66.1
GBP
|
13,200,000
GBP
|
— | — | — |
–
GBP
|
800,000
GBP
|
8,800,000
GBP
|
–
GBP
|
–
GBP
|