Statement Of Cash Flows [Abstract]
| Concept |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
2021-04-01 to 2022-03-31 |
As at 2022-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
As at 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
2020-04-01 to 2021-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||||||||||||
| Cash flows from (used in) operating activities [abstract] | ||||||||||||||
| Profit (loss) |
—
GBP
|
—
GBP
|
38,600,000
GBP
|
—
GBP
|
—
GBP
|
38,600,000
GBP
|
— |
—
GBP
|
—
GBP
|
—
GBP
|
— |
—
GBP
|
41 . 8
GBP
|
41 . 8
GBP
|
| Adjustments to reconcile profit (loss) [abstract] | ||||||||||||||
| Adjustments for income tax expense | — | — | — | — | — |
9 .0
GBP
|
— | — | — | — | — | — | — |
10 .4
GBP
|
| Adjustments for decrease (increase) in inventories | — | — | — | — | — |
0. 1
GBP
|
— | — | — | — | — | — | — |
1 .3
GBP
|
| Cash flows from (used in) operations | — | — | — | — | — |
58. 4
GBP
|
— | — | — | — | — | — | — |
49,700,000
GBP
|
| Interest paid, classified as operating activities | — | — | — | — | — |
0. 5
GBP
|
— | — | — | — | — | — | — |
1 . 6
GBP
|
| Income taxes paid (refund), classified as operating activities | — | — | — | — | — |
8,800,000
GBP
|
— | — | — | — | — | — | — |
6. 3
GBP
|
| Cash flows from (used in) operating activities | — | — | — | — | — |
49,100,000
GBP
|
— | — | — | — | — | — | — |
41 . 8
GBP
|
| Cash flows from (used in) investing activities [abstract] | ||||||||||||||
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — | — | — | — | — |
30. 6
GBP
|
— | — | — | — | — | — | — |
—
GBP
|
| Proceeds from sales of property, plant and equipment, classified as investing activities | — | — | — | — | — |
—
GBP
|
— | — | — | — | — | — | — |
0. 2
GBP
|
| Purchase of property, plant and equipment, classified as investing activities | — | — | — | — | — |
13 .9
GBP
|
— | — | — | — | — | — | — |
4,200,000
GBP
|
| Purchase of intangible assets, classified as investing activities | — | — | — | — | — |
100,000
GBP
|
— | — | — | — | — | — | — |
—
GBP
|
| Cash flows from (used in) investing activities | — | — | — | — | — |
45. 6
GBP
|
— | — | — | — | — | — | — |
4,900,000
GBP
|
| Cash flows from (used in) financing activities [abstract] | ||||||||||||||
| Proceeds from issuing shares | — | — | — | — | — |
100,000
GBP
|
— | — | — | — | — | — | — |
0. 2
GBP
|
| Repayments of borrowings, classified as financing activities | — | — | — | — | — |
0. 1
GBP
|
— | — | — | — | — | — | — |
2 7. 9
GBP
|
| Payments of lease liabilities, classified as financing activities | — | — | — | — | — |
3,400,000
GBP
|
— | — | — | — | — | — | — |
2 .8
GBP
|
| Dividends paid, classified as financing activities | — | — | — | — | — |
12 .3
GBP
|
— | — | — | — | — | — | — |
—
GBP
|
| Cash flows from (used in) financing activities | — | — | — | — | — |
15 .7
GBP
|
— | — | — | — | — | — | — |
30 .5
GBP
|
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | — | — | — | — |
12 . 2
GBP
|
— | — | — | — | — | — | — |
6 .4
GBP
|
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — | — | — | — |
2,300,000
GBP
|
— | — | — | — | — | — | — |
4,200,000
GBP
|
| Cash and cash equivalents | — | — | — | — | — | — |
96,400,000
GBP
|
— | — | — |
128 .0
GBP
|
— | — | — |