Analysis Of Income And Expense [Abstract]
| Concept |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
2024-04-01 to 2025-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||||||||
| Revenue [abstract] | ||||||||||||||||||||
| Revenue | — |
416,600,000
GBP
|
— | — |
–
GBP
|
416 .6
GBP
|
— | — | — | — | — | — |
42 1. 5
GBP
|
42 1.5
GBP
|
–
GBP
|
— | — | — | — | — |
| Material income and expense [abstract] | ||||||||||||||||||||
| Impairment loss (reversal of impairment loss) on trade receivables [abstract] | ||||||||||||||||||||
| Impairment loss (reversal of impairment loss) recognised in profit or loss, trade receivables | — |
2 .6
GBP
|
— | — |
–
GBP
|
2 . 6
GBP
|
— | — | — | — | — | — |
3 . 2
GBP
|
3 . 2
GBP
|
–
GBP
|
— | — | — | — | — |
| Finance income (cost) | — |
15,900,000
GBP
|
— | — |
–
GBP
|
15,900,000
GBP
|
— | — | — | — | — | — |
12 . 7
GBP
|
12 .7
GBP
|
–
GBP
|
— | — | — | — | — |
| Distribution and administrative expense | — |
220,100,000
GBP
|
— | — |
9 .6
GBP
|
210,500,000
GBP
|
— | — | — | — | — | — |
211 .9
GBP
|
202 .9
GBP
|
9,000,000
GBP
|
— | — | — | — | — |
| Miscellaneous other comprehensive income [abstract] | ||||||||||||||||||||
| Other comprehensive income, before tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract] | ||||||||||||||||||||
| Other comprehensive income, before tax, exchange differences on translation of foreign operations | — |
700,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
0. 2
GBP
|
— | — | — | — | — | — | — |
| Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract] | ||||||||||||||||||||
| Share of profit (loss) of joint ventures accounted for using equity method | — |
1,000,000
GBP
|
— | — |
–
GBP
|
1,000,000
GBP
|
— | — | — | — | — | — |
2,900,000
GBP
|
2,900,000
GBP
|
–
GBP
|
— | — | — | — | — |
| Income tax relating to components of other comprehensive income [abstract] | ||||||||||||||||||||
| Income tax relating to components of other comprehensive income that will be reclassified to profit or loss | — |
0 .1
GBP
|
— | — | — | — | — | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||||||||
| Comprehensive income |
–
GBP
|
2 .3
GBP
|
1,000,000
GBP
|
–
GBP
|
— | — |
600,000
GBP
|
–
GBP
|
–
GBP
|
700,000
GBP
|
–
GBP
|
0 .1
GBP
|
2 .4
GBP
|
— | — |
–
GBP
|
–
GBP
|
–
GBP
|
2 .7
GBP
|
0. 2
GBP
|