Statement Of Financial Position [Abstract]
| Concept |
As at 2022-10-31 |
As at 2022-10-31 |
As at 2022-10-31 |
As at 2022-10-31 |
As at 2022-10-31 |
As at 2021-10-31 |
As at 2021-10-31 |
As at 2021-10-31 |
As at 2021-10-31 |
As at 2021-10-31 |
As at 2020-10-31 |
As at 2020-10-31 |
As at 2020-10-31 |
As at 2020-10-31 |
As at 2020-10-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||
| Assets [abstract] | |||||||||||||||
| Non-current assets [abstract] | |||||||||||||||
| Property, plant and equipment | — |
3,400,000
GBP
|
— | — | — |
3,200,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Investment property | — |
2,647,400,000
GBP
|
— | — | — |
2,031,300,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Deferred tax assets | — |
800,000
GBP
|
— | — | — |
800,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Non-current assets | — |
2,653,400,000
GBP
|
— | — | — |
2,043,400,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||
| Current inventories | — |
300,000
GBP
|
— | — | — |
500,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Trade and other current receivables | — |
31,200,000
GBP
|
— | — | — |
28,900,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — |
20,900,000
GBP
|
— | — | — |
43,200,000
GBP
|
— | — | — | — | — | — | — | — |
19,600,000
GBP
|
| Current assets | — |
54,100,000
GBP
|
— | — | — |
73,900,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Assets | — |
2,707,500,000
GBP
|
— | — | — |
2,117,300,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||
| Equity [abstract] | |||||||||||||||
| Issued capital | — |
2,100,000
GBP
|
— | — | — |
2,100,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Retained earnings | — |
1,721,000,000
GBP
|
— | — | — |
1,306,400,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Share premium | — |
61,800,000
GBP
|
— | — | — |
61,300,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Equity |
8,500,000
GBP
|
1,793,400,000
GBP
|
2,100,000
GBP
|
61,800,000
GBP
|
1,721,000,000
GBP
|
1,374,900,000
GBP
|
61,300,000
GBP
|
5,100,000
GBP
|
2,100,000
GBP
|
1,306,400,000
GBP
|
958,400,000
GBP
|
60,600,000
GBP
|
2,100,000
GBP
|
14,500,000
GBP
|
1,035,600,000
GBP
|
| Liabilities [abstract] | |||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||
| Non-current provisions | — |
2,400,000
GBP
|
— | — | — |
2,100,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — |
129,000,000
GBP
|
— | — | — |
97,000,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Non-current liabilities | — |
735,700,000
GBP
|
— | — | — |
653,800,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||
| Trade and other current payables | — |
62,700,000
GBP
|
— | — | — |
75,800,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Current liabilities | — |
178,400,000
GBP
|
— | — | — |
88,600,000
GBP
|
— | — | — | — | — | — | — | — | — |
| Liabilities | — |
914,100,000
GBP
|
— | — | — |
742,400,000
GBP
|
— | — | — | — | — | — | — | — | — |