Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-03-31 |
As at 2021-03-31 |
As at 2020-03-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
2,900,000
GBP
|
4,000,000
GBP
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
1,900,000
GBP
|
2,400,000
GBP
|
— |
| Investment property [abstract] | |||
| Investment property |
2,366,700,000
GBP
|
2,349,900,000
GBP
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Non-current derivative financial assets |
–
GBP
|
8 .7
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
23,500,000
GBP
|
29,300,000
GBP
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
49,000,000
GBP
|
191,000,000
GBP
|
79,200,000
GBP
|
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract] | |||
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners |
65,900,000
GBP
|
–
GBP
|
— |
| Miscellaneous assets [abstract] | |||
| Investments other than investments accounted for using equity method |
1 .7
GBP
|
7. 9
GBP
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
595,500,000
GBP
|
596,200,000
GBP
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
–
GBP
|
156,600,000
GBP
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
85,800,000
GBP
|
95. 0
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
181. 1
GBP
|
181. 1
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
1,300,300,000
GBP
|
1,219,400,000
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
2,511,900,000
GBP
|
2,593,600,000
GBP
|
— |
| Liabilities |
712,300,000
GBP
|
87 4.1
GBP
|
— |
| Assets (liabilities) |
1,7 99.6
GBP
|
1,719,500,000
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
138,400,000
GBP
|
220,300,000
GBP
|
— |
| Current liabilities |
85,800,000
GBP
|
251,600,000
GBP
|
— |
| Assets less current liabilities [abstract] |