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 |
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 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||||
| Revenue [abstract] | ||||||||||||||||||
| Revenue | — | — |
802,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
74 3 . 6
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
|
–
GBP
|
29,700,000
GBP
|
0. 8
GBP
|
–
GBP
|
–
GBP
|
28 . 9
GBP
|
–
GBP
|
28 .9
GBP
|
–
GBP
|
–
GBP
|
57 .4
GBP
|
–
GBP
|
57 .2
GBP
|
–
GBP
|
–
GBP
|
0. 2
GBP
|
57 .4
GBP
|
| Income tax relating to components of other comprehensive income [abstract] | ||||||||||||||||||
| Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — |
200,000
GBP
|
— | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||||
| Comprehensive income |
–
GBP
|
–
GBP
|
58,900,000
GBP
|
400,000
GBP
|
85 .5
GBP
|
–
GBP
|
58 .5
GBP
|
1,900,000
GBP
|
28 .9
GBP
|
–
GBP
|
–
GBP
|
13 3. 3
GBP
|
3. 4
GBP
|
13 3 . 7
GBP
|
–
GBP
|
79. 3
GBP
|
0. 4
GBP
|
57 .4
GBP
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||||||
| Comprehensive income, attributable to owners of parent | — | — |
58,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
13 3 . 3
GBP
|
— | — | — | — |
| Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract] | ||||||||||||||||||
| Comprehensive income, attributable to non-controlling interests | — | — |
400,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
400,000
GBP
|
— | — | — | — |