Statement Of Cash Flows [Abstract]
| Concept |
As at 2025-03-31 |
2024-04-01 to 2025-03-31 |
2023-04-01 to 2024-03-31 |
As at 2024-03-31 |
|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||
| Cash flows from (used in) operating activities [abstract] | ||||
| Cash flows from (used in) operating activities | — |
46,400,000
GBP
|
41,200,000
GBP
|
— |
| Cash flows from (used in) investing activities [abstract] | ||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — |
13,300,000
GBP
|
–
GBP
|
— |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
27,700,000
GBP
|
82,800,000
GBP
|
— |
| Purchase of property, plant and equipment, classified as investing activities | — |
5,400,000
GBP
|
4,800,000
GBP
|
— |
| Interest received, classified as investing activities | — |
3,500,000
GBP
|
3,900,000
GBP
|
— |
| Cash flows from (used in) investing activities | — |
19,300,000
GBP
|
83,800,000
GBP
|
— |
| Cash flows from (used in) financing activities [abstract] | ||||
| Proceeds from borrowings, classified as financing activities | — |
37,500,000
GBP
|
79,400,000
GBP
|
— |
| Repayments of borrowings, classified as financing activities | — |
33,200,000
GBP
|
28,900,000
GBP
|
— |
| Payments of lease liabilities, classified as financing activities | — |
6,500,000
GBP
|
6,100,000
GBP
|
— |
| Dividends paid, classified as financing activities | — |
11,700,000
GBP
|
11,200,000
GBP
|
— |
| Cash flows from (used in) financing activities | — |
13,900,000
GBP
|
33,200,000
GBP
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
13,200,000
GBP
|
9,400,000
GBP
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||
| Effect of exchange rate changes on cash and cash equivalents | — |
1,000,000
GBP
|
2,500,000
GBP
|
— |
| Cash and cash equivalents |
139,300,000
GBP
|
— | — |
110,800,000
GBP
|