Disclosure Of Effect Of Changes In Foreign Exchange Rates [Text Block]
| Concept |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of effect of changes in foreign exchange rates [text block] | — | — | — | — | — | — | — | — | — | — |
| Foreign exchange gain (loss) [abstract] | ||||||||||
| Foreign exchange gain (loss) | — | — | — | — |
2,300,000
GBP
|
— | — | — |
2,100,000
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 |
2,308,800,000
GBP
|
— | — | — | — | — | — |
2,181,400,000
GBP
|
— | — |
| Current assets |
229,700,000
GBP
|
— | — | — | — | — | — |
279,600,000
GBP
|
— | — |
| Non-current liabilities |
975,900,000
GBP
|
— | — | — | — | — | — |
1,032,200,000
GBP
|
— | — |
| Current liabilities |
231,900,000
GBP
|
— | — | — | — | — | — |
158,200,000
GBP
|
— | — |
| Revenue | — | — | — | — |
139,800,000
GBP
|
— | — | — |
139,400,000
GBP
|
— |
| Profit (loss) | — | — | — | — |
119,500,000
GBP
|
119,500,000
GBP
|
77,400,000
GBP
|
— |
77,400,000
GBP
|
— |
| Other comprehensive income | — | — |
28,300,000
GBP
|
— |
28,300,000
GBP
|
— | — | — |
21,100,000
GBP
|
21,100,000
GBP
|
| Comprehensive income | — |
–
GBP
|
— |
–
GBP
|
91,200,000
GBP
|
— | — | — |
98,500,000
GBP
|
— |