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 |
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 |
2022-04-01 to 2023-03-31 |
2022-04-01 to 2023-03-31 |
2021-04-01 to 2022-03-31 |
As at 2022-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||||||||||||
| Cash flows from (used in) operating activities [abstract] | |||||||||||||||
| Profit (loss) |
–
GBP
|
–
GBP
|
50. 7
GBP
|
— |
–
GBP
|
–
GBP
|
5 0.7
GBP
|
58,600,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
58,600,000
GBP
|
58,600,000
GBP
|
— |
| Adjustments to reconcile profit (loss) [abstract] | |||||||||||||||
| Adjustments for income tax expense | — | — |
20,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
14,900,000
GBP
|
— |
| Adjustments for decrease (increase) in inventories | — | — |
26. 3
GBP
|
— | — | — | — | — | — | — | — | — | — |
15. 6
GBP
|
— |
| Cash flows from (used in) operations | — | — |
59. 4
GBP
|
— | — | — | — | — | — | — | — | — | — |
72,900,000
GBP
|
— |
| Interest paid, classified as operating activities | — | — |
900,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
0. 7
GBP
|
— |
| Income taxes paid (refund), classified as operating activities | — | — |
16 .1
GBP
|
— | — | — | — | — | — | — | — | — | — |
5 .7
GBP
|
— |
| Cash flows from (used in) operating activities | — | — |
42 .4
GBP
|
— | — | — | — | — | — | — | — | — | — |
66. 5
GBP
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||||||||||||
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — | — |
13 . 4
GBP
|
— | — | — | — | — | — | — | — | — | — |
4. 8
GBP
|
— |
| Proceeds from sales of property, plant and equipment, classified as investing activities | — | — |
0. 5
GBP
|
— | — | — | — | — | — | — | — | — | — |
0. 2
GBP
|
— |
| Purchase of property, plant and equipment, classified as investing activities | — | — |
2 7. 0
GBP
|
— | — | — | — | — | — | — | — | — | — |
32. 3
GBP
|
— |
| Interest received, classified as investing activities | — | — |
3,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
1 .1
GBP
|
— |
| Cash flows from (used in) investing activities | — | — |
3 7. 5
GBP
|
— | — | — | — | — | — | — | — | — | — |
36 .4
GBP
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||||||||||||
| Proceeds from issuing shares | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — |
0. 1
GBP
|
— |
| Repayments of borrowings, classified as financing activities | — | — |
1 .8
GBP
|
— | — | — | — | — | — | — | — | — | — |
0. 5
GBP
|
— |
| Payments of lease liabilities, classified as financing activities | — | — |
4 .0
GBP
|
— | — | — | — | — | — | — | — | — | — |
5 .1
GBP
|
— |
| Dividends paid, classified as financing activities | — | — |
11 . 4
GBP
|
— | — | — | — | — | — | — | — | — | — |
10,600,000
GBP
|
— |
| Interest paid, classified as financing activities | — | — |
0. 8
GBP
|
— | — | — | — | — | — | — | — | — | — |
0. 5
GBP
|
— |
| Cash flows from (used in) financing activities | — | — |
18 .0
GBP
|
— | — | — | — | — | — | — | — | — | — |
16 .6
GBP
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | — |
13 .1
GBP
|
— | — | — | — | — | — | — | — | — | — |
13 .5
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
|
— | — | — | — | — | — | — | — | — | — |
300,000
GBP
|
— |
| Cash and cash equivalents | — | — | — |
9 7. 8
GBP
|
— | — | — | — | — | — | — | — | — | — |
1 12.7
GBP
|