Statement Of Cash Flows [Abstract]
| Concept |
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 |
As at 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 |
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 |
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 |
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 |
2021-04-01 to 2022-03-31 |
As at 2021-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||||||||||||||||||||||||
| Cash flows from (used in) operating activities [abstract] | |||||||||||||||||||||||||||
| Profit (loss) |
–
GBP
|
54,100,000
GBP
|
288,400,000
GBP
|
–
GBP
|
— |
–
GBP
|
–
GBP
|
200,000
GBP
|
–
GBP
|
234,500,000
GBP
|
–
GBP
|
–
GBP
|
234,300,000
GBP
|
–
GBP
|
–
GBP
|
200,000
GBP
|
–
GBP
|
244,400,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
244,200,000
GBP
|
247,900,000
GBP
|
3,700,000
GBP
|
— |
–
GBP
|
— |
| Cash flows from (used in) operating activities | — | — | — | — | — | — | — | — | — | — | — | — |
258,000,000
GBP
|
— | — | — | — | — | — | — | — |
237,400,000
GBP
|
— | — | — | — | — |
| Cash flows from (used in) investing activities [abstract] | |||||||||||||||||||||||||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — | — | — | — | — | — | — | — | — | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — |
57,500,000
GBP
|
— | — | — | — | — |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — | — | — | — | — | — | — | — | — | — | — | — |
320,100,000
GBP
|
— | — | — | — | — | — | — | — |
152,800,000
GBP
|
— | — | — | — | — |
| Proceeds from sales of property, plant and equipment, classified as investing activities | — | — | — | — | — | — | — | — | — | — | — | — |
3,100,000
GBP
|
— | — | — | — | — | — | — | — |
1,100,000
GBP
|
— | — | — | — | — |
| Purchase of property, plant and equipment, classified as investing activities | — | — | — | — | — | — | — | — | — | — | — | — |
29,000,000
GBP
|
— | — | — | — | — | — | — | — |
25,200,000
GBP
|
— | — | — | — | — |
| Interest received, classified as investing activities | — | — | — | — | — | — | — | — | — | — | — | — |
700,000
GBP
|
— | — | — | — | — | — | — | — |
200,000
GBP
|
— | — | — | — | — |
| Cash flows from (used in) investing activities | — | — | — | — | — | — | — | — | — | — | — | — |
368,900,000
GBP
|
— | — | — | — | — | — | — | — |
134,700,000
GBP
|
— | — | — | — | — |
| Cash flows from (used in) financing activities [abstract] | |||||||||||||||||||||||||||
| Payments to acquire or redeem entity's shares | — | — | — | — | — | — | — | — | — | — | — | — |
22,300,000
GBP
|
— | — | — | — | — | — | — | — |
19,300,000
GBP
|
— | — | — | — | — |
| Proceeds from borrowings, classified as financing activities | — | — | — | — | — | — | — | — | — | — | — | — |
451,800,000
GBP
|
— | — | — | — | — | — | — | — |
161,400,000
GBP
|
— | — | — | — | — |
| Repayments of borrowings, classified as financing activities | — | — | — | — | — | — | — | — | — | — | — | — |
394,200,000
GBP
|
— | — | — | — | — | — | — | — |
132,500,000
GBP
|
— | — | — | — | — |
| Payments of lease liabilities, classified as financing activities | — | — | — | — | — | — | — | — | — | — | — | — |
18,000,000
GBP
|
— | — | — | — | — | — | — | — |
14,600,000
GBP
|
— | — | — | — | — |
| Dividends paid, classified as financing activities | — | — | — | — | — | — | — | — | — | — | — | — |
73,300,000
GBP
|
— | — | — | — | — | — | — | — |
68,700,000
GBP
|
— | — | — | — | — |
| Interest paid, classified as financing activities | — | — | — | — | — | — | — | — | — | — | — | — |
17,500,000
GBP
|
— | — | — | — | — | — | — | — |
8,200,000
GBP
|
— | — | — | — | — |
| Cash flows from (used in) financing activities | — | — | — | — | — | — | — | — | — | — | — | — |
121,000,000
GBP
|
— | — | — | — | — | — | — | — |
81,900,000
GBP
|
— | — | — | — | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | — | — | — | — | — | — | — | — | — | — | — |
10,100,000
GBP
|
— | — | — | — | — | — | — | — |
20,800,000
GBP
|
— | — | — | — | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||||||||||||||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — | — | — | — | — | — | — | — | — | — | — |
1,700,000
GBP
|
— | — | — | — | — | — | — | — |
4,800,000
GBP
|
— | — | — | — | — |
| Cash and cash equivalents | — | — | — | — |
168,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
156,700,000
GBP
|
— |
131,100,000
GBP
|