Statement Of Cash Flows [Abstract]
| Concept |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
2023-04-01 to 2024-03-31 |
As at 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 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
As at 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
As at 2022-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||||||||||||||||
| Cash flows from (used in) operating activities [abstract] | |||||||||||||||||||
| Profit (loss) |
–
GBP
|
–
GBP
|
69. 2
GBP
|
— |
–
GBP
|
–
GBP
|
–
GBP
|
69. 2
GBP
|
–
GBP
|
–
GBP
|
128 .9
GBP
|
–
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
1 28.9
GBP
|
–
GBP
|
— |
| Adjustments to reconcile profit (loss) [abstract] | |||||||||||||||||||
| Adjustments for income tax expense | — | — |
23,800,000
GBP
|
— | — | — | — | — | — | — |
3 0.5
GBP
|
— | — | — | — | — | — | — | — |
| Adjustments for finance costs | — | — |
32. 2
GBP
|
— | — | — | — | — | — | — |
1 8 .7
GBP
|
— | — | — | — | — | — | — | — |
| Adjustments for decrease (increase) in inventories | — | — |
1 . 6
GBP
|
— | — | — | — | — | — | — |
1 3 3 . 2
GBP
|
— | — | — | — | — | — | — | — |
| Adjustments for depreciation and amortisation expense | — | — |
72. 3
GBP
|
— | — | — | — | — | — | — |
5 8.1
GBP
|
— | — | — | — | — | — | — | — |
| Adjustments for unrealised foreign exchange losses (gains) | — | — |
4,200,000
GBP
|
— | — | — | — | — | — | — |
1 0.7
GBP
|
— | — | — | — | — | — | — | — |
| Adjustments for share-based payments | — | — |
4,000,000
GBP
|
— | — | — | — | — | — | — |
500,000
GBP
|
— | — | — | — | — | — | — | — |
| Other adjustments to reconcile profit (loss) | — | — |
1 . 2
GBP
|
— | — | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — |
| Cash flows from (used in) operations | — | — |
185. 2
GBP
|
— | — | — | — | — | — | — |
96,500,000
GBP
|
— | — | — | — | — | — | — | — |
| Income taxes paid (refund), classified as operating activities | — | — |
1 8 . 8
GBP
|
— | — | — | — | — | — | — |
2 2 .3
GBP
|
— | — | — | — | — | — | — | — |
| Cash flows from (used in) operating activities | — | — |
167 .9
GBP
|
— | — | — | — | — | — | — |
7 2.7
GBP
|
— | — | — | — | — | — | — | — |
| Cash flows from (used in) investing activities [abstract] | |||||||||||||||||||
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — | — |
–
GBP
|
— | — | — | — | — | — | — |
1 .0
GBP
|
— | — | — | — | — | — | — | — |
| Purchase of property, plant and equipment, classified as investing activities | — | — |
1 8 . 2
GBP
|
— | — | — | — | — | — | — |
3 9 . 6
GBP
|
— | — | — | — | — | — | — | — |
| Purchase of intangible assets, classified as investing activities | — | — |
1 0 . 2
GBP
|
— | — | — | — | — | — | — |
1 1 . 8
GBP
|
— | — | — | — | — | — | — | — |
| Interest received, classified as investing activities | — | — |
2,900,000
GBP
|
— | — | — | — | — | — | — |
1,600,000
GBP
|
— | — | — | — | — | — | — | — |
| Cash flows from (used in) investing activities | — | — |
2 5. 5
GBP
|
— | — | — | — | — | — | — |
50,600,000
GBP
|
— | — | — | — | — | — | — | — |
| Cash flows from (used in) financing activities [abstract] | |||||||||||||||||||
| Payments to acquire or redeem entity's shares | — | — |
5 0. 5
GBP
|
— | — | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — |
| Proceeds from borrowings, classified as financing activities | — | — |
3 0.0
GBP
|
— | — | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — |
| Repayments of borrowings, classified as financing activities | — | — |
3 0 .0
GBP
|
— | — | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — |
| Payments of lease liabilities, classified as financing activities | — | — |
4 3 .6
GBP
|
— | — | — | — | — | — | — |
2 9 .1
GBP
|
— | — | — | — | — | — | — | — |
| Dividends paid, classified as financing activities | — | — |
57,800,000
GBP
|
— | — | — | — | — | — | — |
5 8 .4
GBP
|
— | — | — | — | — | — | — | — |
| Cash flows from (used in) financing activities | — | — |
1 8 5 . 9
GBP
|
— | — | — | — | — | — | — |
9 4 . 9
GBP
|
— | — | — | — | — | — | — | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | — |
4 3 . 5
GBP
|
— | — | — | — | — | — | — |
72 . 8
GBP
|
— | — | — | — | — | — | — | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||||||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — |
2 .9
GBP
|
— | — | — | — | — | — | — |
2,300,000
GBP
|
— | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
111 .1
GBP
|
— | — | — | — | — | — | — | — | — |
157 .5
GBP
|
— | — | — | — |
22 8.0
GBP
|