Analysis Of Income And Expense [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||
| Revenue [abstract] | ||||||||||||||
| Revenue | — |
7, 3 3 1
GBP
|
— | — | — | — | — | — | — |
10,560,000
GBP
|
— | — | — | — |
| Material income and expense [abstract] | ||||||||||||||
| Research and development expense | — |
60,77 6
GBP
|
— | — | — | — | — | — | — |
7 1,884
GBP
|
— | — | — | — |
| Miscellaneous other comprehensive income [abstract] | ||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract] | ||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations |
—
GBP
|
37,000
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
37,000
GBP
|
—
GBP
|
—
GBP
|
31,000
GBP
|
—
GBP
|
—
GBP
|
31,000
GBP
|
—
GBP
|
| Other comprehensive income, net of tax, hedges of net investments in foreign operations | — |
37,000
GBP
|
— | — | — | — | — | — | — |
31,000
GBP
|
— | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||
| Comprehensive income | — |
63,280,000
GBP
|
— | — | — | — | — | — | — |
163,897,000
GBP
|
— | — | — | — |