Statement Of Cash Flows [Abstract]
| Concept |
2023-04-01 to 2024-03-31 |
As at 2024-03-31 |
As at 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] | |||||
| Cash flows from (used in) operating activities |
385,000,000
GBP
|
— | — |
258,000,000
GBP
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities |
1,600,000
GBP
|
— | — |
–
GBP
|
— |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities |
238,800,000
GBP
|
— | — |
320,100,000
GBP
|
— |
| Proceeds from sales of property, plant and equipment, classified as investing activities |
1,600,000
GBP
|
— | — |
3,100,000
GBP
|
— |
| Purchase of property, plant and equipment, classified as investing activities |
32,800,000
GBP
|
— | — |
29,000,000
GBP
|
— |
| Interest received, classified as investing activities |
1,200,000
GBP
|
— | — |
700,000
GBP
|
— |
| Cash flows from (used in) investing activities |
286,300,000
GBP
|
— | — |
368,900,000
GBP
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||
| Payments to acquire or redeem entity's shares |
21,100,000
GBP
|
— | — |
22,300,000
GBP
|
— |
| Proceeds from borrowings, classified as financing activities |
513,200,000
GBP
|
— | — |
451,800,000
GBP
|
— |
| Repayments of borrowings, classified as financing activities |
465,700,000
GBP
|
— | — |
394,200,000
GBP
|
— |
| Payments of lease liabilities, classified as financing activities |
20,900,000
GBP
|
— | — |
18,000,000
GBP
|
— |
| Dividends paid, classified as financing activities |
78,200,000
GBP
|
— | — |
73,300,000
GBP
|
— |
| Interest paid, classified as financing activities |
29,600,000
GBP
|
— | — |
17,500,000
GBP
|
— |
| Cash flows from (used in) financing activities |
119,700,000
GBP
|
— | — |
121,000,000
GBP
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes |
21,000,000
GBP
|
— | — |
10,100,000
GBP
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents |
5,100,000
GBP
|
— | — |
1,700,000
GBP
|
— |
| Cash and cash equivalents | — |
142,400,000
GBP
|
168,500,000
GBP
|
— |
156,700,000
GBP
|