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 |
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 |
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] | ||||||||||||||||||
| Profit (loss) |
—
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
343,700,000
GBP
|
—
GBP
|
343,700,000
GBP
|
343,700,000
GBP
|
367,200,000
GBP
|
—
GBP
|
—
GBP
|
367,200,000
GBP
|
—
GBP
|
—
GBP
|
367,200,000
GBP
|
—
GBP
|
—
GBP
|
| Other comprehensive income |
74,900,000
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
300,000
GBP
|
72,200,000
GBP
|
—
GBP
|
72,200,000
GBP
|
3,000,000
GBP
|
100,000
GBP
|
—
GBP
|
—
GBP
|
36,200,000
GBP
|
36,400,000
GBP
|
100,000
GBP
|
36,200,000
GBP
|
—
GBP
|
—
GBP
|
| Comprehensive income |
74,900,000
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
300,000
GBP
|
271,500,000
GBP
|
—
GBP
|
271,500,000
GBP
|
346,700,000
GBP
|
367,100,000
GBP
|
—
GBP
|
—
GBP
|
403,400,000
GBP
|
36,400,000
GBP
|
100,000
GBP
|
403,400,000
GBP
|
—
GBP
|
—
GBP
|