Statement Of Cash Flows [Abstract]
| Concept |
2021-04-01 to 2022-03-31 |
As at 2022-03-31 |
As at 2021-03-31 |
2020-04-01 to 2021-03-31 |
As at 2020-03-31 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Income taxes paid (refund), classified as operating activities |
400,000
GBP
|
— | — |
0
GBP
|
— |
| Cash flows from (used in) operating activities |
212,200,000
GBP
|
— | — |
70,600,000
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
|
— | — |
700,000
GBP
|
— |
| Purchase of property, plant and equipment, classified as investing activities |
100,000
GBP
|
— | — |
100,000
GBP
|
— |
| Cash flows from (used in) investing activities |
100,000
GBP
|
— | — |
800,000
GBP
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||
| Proceeds from issuing shares |
111,200,000
GBP
|
— | — |
111,900,000
GBP
|
— |
| Payments to acquire or redeem entity's shares |
8,000,000
GBP
|
— | — |
2,300,000
GBP
|
— |
| Proceeds from borrowings, classified as financing activities |
30,000,000
GBP
|
— | — |
35,000,000
GBP
|
— |
| Repayments of borrowings, classified as financing activities |
–
GBP
|
— | — |
80,000,000
GBP
|
— |
| Payments of lease liabilities, classified as financing activities |
400,000
GBP
|
— | — |
400,000
GBP
|
— |
| Interest paid, classified as financing activities |
1,000,000
GBP
|
— | — |
2,200,000
GBP
|
— |
| Cash flows from (used in) financing activities |
128,100,000
GBP
|
— | — |
60,100,000
GBP
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes |
84,200,000
GBP
|
— | — |
129,900,000
GBP
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents |
1,600,000
GBP
|
— | — |
3,300,000
GBP
|
— |
| Cash and cash equivalents | — |
78,100,000
GBP
|
160,700,000
GBP
|
— |
34,100,000
GBP
|