Statement Of Cash Flows [Abstract]
| Concept |
2022-04-01 to 2023-03-31 |
2021-04-01 to 2022-03-31 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) investing activities [abstract] | ||
| Purchase of interests in investments accounted for using equity method |
6,700,000
GBP
|
700,000
GBP
|
| Payments for development project expenditure |
15,800,000
GBP
|
13,400,000
GBP
|
| Cash flows from (used in) financing activities [abstract] | ||
| Proceeds from issue of bonds, notes and debentures |
338,100,000
GBP
|
–
GBP
|
| Repayments of bonds, notes and debentures |
74,400,000
GBP
|
–
GBP
|