Analysis Of Income And Expense [Abstract]
| Concept |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
2024-01-01 to 2024-12-31 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||
| Revenue [abstract] | ||||||||||||||
| Interest income | — |
3 0.9
GBP
|
— |
—
GBP
|
30,900,000
GBP
|
— | — | — | — |
15 .4
GBP
|
— | — | — | — |
| Material income and expense [abstract] | ||||||||||||||
| Investment income | — |
2,800,000
GBP
|
— |
—
GBP
|
2 .8
GBP
|
— | — | — | — |
3,600,000
GBP
|
— | — | — | — |
| Other operating income (expense) | — |
15 8. 9
GBP
|
— |
—
GBP
|
158,900,000
GBP
|
— | — | — | — |
1 2 6 .1
GBP
|
— | — | — | — |
| Operating expense | — |
159,300,000
GBP
|
— |
2 .6
GBP
|
156 .7
GBP
|
— | — | — | — |
140,000,000
GBP
|
— | — | — | — |
| Sales and marketing expense | — |
4 5 . 6
GBP
|
— |
—
GBP
|
4 5 . 6
GBP
|
— | — | — | — |
37 .1
GBP
|
— | — | — | — |
| Fee and commission income (expense) [abstract] | ||||||||||||||
| Fee and commission income [abstract] | ||||||||||||||
| Other fee and commission income | — |
5. 2
GBP
|
— |
—
GBP
|
5,200,000
GBP
|
— | — | — | — |
6,400,000
GBP
|
— | — | — | — |
| Expenses by nature [abstract] | ||||||||||||||
| Classes of employee benefits expense [abstract] | ||||||||||||||
| Employee benefits expense | — |
70 .4
GBP
|
— |
2. 3
GBP
|
6 8 .1
GBP
|
— | — | — | — |
65,500,000
GBP
|
— | — | — | — |
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract] | ||||||||||||||
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss | — |
13. 5
GBP
|
— |
0 .3
GBP
|
13 . 2
GBP
|
— | — | — | — |
12 .6
GBP
|
— | — | — | — |
| Other expenses, by nature | — |
21. 2
GBP
|
— |
—
GBP
|
21 . 2
GBP
|
— | — | — | — |
20 .3
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
|
8 .9
GBP
|
—
GBP
|
8,700,000
GBP
|
0 .2
GBP
|
—
GBP
|
8 .9
GBP
|
—
GBP
|
—
GBP
|
2 .7
GBP
|
—
GBP
|
—
GBP
|
—
GBP
|
2,700,000
GBP
|
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||
| Comprehensive income |
—
GBP
|
300,000
GBP
|
—
GBP
|
7. 2
GBP
|
7. 5
GBP
|
—
GBP
|
8. 9
GBP
|
8,600,000
GBP
|
—
GBP
|
41 . 0
GBP
|
—
GBP
|
3 8. 3
GBP
|
—
GBP
|
2 .7
GBP
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | ||||||||||||||
| Comprehensive income from continuing operations, attributable to owners of parent | — |
0. 3
GBP
|
— |
2 .6
GBP
|
2 .9
GBP
|
— | — | — | — |
8 . 2
GBP
|
— | — | — | — |
| Comprehensive income from discontinued operations, attributable to owners of parent | — |
600,000
GBP
|
— |
9. 8
GBP
|
1 0. 4
GBP
|
— | — | — | — |
32 . 8
GBP
|
— | — | — | — |
| Comprehensive income, attributable to owners of parent | — |
300,000
GBP
|
— |
7. 2
GBP
|
7. 5
GBP
|
— | — | — | — |
41. 0
GBP
|
— | — | — | — |