Statement Of Changes In Equity [Abstract]
| Concept |
2022-11-01 to 2023-10-31 |
As at 2023-10-31 |
2022-11-01 to 2023-10-31 |
As at 2023-10-31 |
As at 2023-10-31 |
As at 2023-10-31 |
2022-11-01 to 2023-10-31 |
2022-11-01 to 2023-10-31 |
2022-11-01 to 2023-10-31 |
As at 2023-10-31 |
2022-11-01 to 2023-10-31 |
As at 2023-10-31 |
2022-11-01 to 2023-10-31 |
2022-11-01 to 2023-10-31 |
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 |
2021-11-01 to 2022-10-31 |
2021-11-01 to 2022-10-31 |
2021-11-01 to 2022-10-31 |
2021-11-01 to 2022-10-31 |
As at 2022-10-31 |
2021-11-01 to 2022-10-31 |
2021-11-01 to 2022-10-31 |
2021-11-01 to 2022-10-31 |
2021-11-01 to 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 2021-10-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||||||
| Equity | — |
8,800,000
GBP
|
— |
62,900,000
GBP
|
308,700,000
GBP
|
2,800,000
GBP
|
— | — | — |
12,900,000
GBP
|
— |
378,500,000
GBP
|
— | — |
7,500,000
GBP
|
418,100,000
GBP
|
2,800,000
GBP
|
307,700,000
GBP
|
87,200,000
GBP
|
— | — | — | — |
12,900,000
GBP
|
— | — | — | — |
352,800,000
GBP
|
2,800,000
GBP
|
307,100,000
GBP
|
27,100,000
GBP
|
12,900,000
GBP
|
57,100,000
GBP
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||||||
| Profit (loss) |
—
GBP
|
— |
5,400,000
GBP
|
— | — | — |
—
GBP
|
—
GBP
|
5,400,000
GBP
|
— |
—
GBP
|
— |
56,800,000
GBP
|
51,400,000
GBP
|
— | — | — | — | — |
47,400,000
GBP
|
—
GBP
|
47,400,000
GBP
|
—
GBP
|
— |
—
GBP
|
56,800,000
GBP
|
9,400,000
GBP
|
—
GBP
|
— | — | — | — | — | — |
| Comprehensive income |
16,300,000
GBP
|
— |
14,000,000
GBP
|
— | — | — |
—
GBP
|
—
GBP
|
2,300,000
GBP
|
— |
—
GBP
|
— | — | — | — | — | — | — | — |
80,500,000
GBP
|
—
GBP
|
45,900,000
GBP
|
34,600,000
GBP
|
— |
—
GBP
|
— | — |
—
GBP
|
— | — | — | — | — | — |
| Issue of equity |
—
GBP
|
— |
1,000,000
GBP
|
— | — | — |
1,000,000
GBP
|
—
GBP
|
—
GBP
|
— |
—
GBP
|
— | — | — | — | — | — | — | — |
600,000
GBP
|
600,000
GBP
|
—
GBP
|
—
GBP
|
— |
—
GBP
|
— | — |
—
GBP
|
— | — | — | — | — | — |
| Dividends recognised as distributions to owners |
—
GBP
|
— |
17,300,000
GBP
|
— | — | — |
—
GBP
|
—
GBP
|
17,300,000
GBP
|
— |
—
GBP
|
— | — | — | — | — | — | — | — |
14,400,000
GBP
|
—
GBP
|
14,400,000
GBP
|
—
GBP
|
— |
—
GBP
|
— | — |
—
GBP
|
— | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
—
GBP
|
— |
7,600,000
GBP
|
— | — | — |
—
GBP
|
—
GBP
|
7,600,000
GBP
|
— |
—
GBP
|
— | — | — | — | — | — | — | — |
5,600,000
GBP
|
—
GBP
|
5,600,000
GBP
|
—
GBP
|
— |
—
GBP
|
— | — |
—
GBP
|
— | — | — | — | — | — |