Analysis Of Income And Expense [Abstract]
| Concept |
2022-10-01 to 2023-09-30 |
2022-10-01 to 2023-09-30 |
2022-10-01 to 2023-09-30 |
2022-10-01 to 2023-09-30 |
2022-10-01 to 2023-09-30 |
2022-10-01 to 2023-09-30 |
2022-10-01 to 2023-09-30 |
2021-10-01 to 2022-09-30 |
2021-10-01 to 2022-09-30 |
2021-10-01 to 2022-09-30 |
2021-10-01 to 2022-09-30 |
2021-10-01 to 2022-09-30 |
2021-10-01 to 2022-09-30 |
2021-10-01 to 2022-09-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Analysis of income and expense [abstract] | ||||||||||||||
| Revenue [abstract] | ||||||||||||||
| Revenue | — | — | — | — |
147,397,000
GBP
|
— | — |
140,185,000
GBP
|
— | — | — | — | — | — |
| Material income and expense [abstract] | ||||||||||||||
| Gains (losses) on disposals of property, plant and equipment [abstract] | ||||||||||||||
| Gains on disposals of property, plant and equipment | — | — | — | — |
–
GBP
|
— | — |
3,324,000
GBP
|
— | — | — | — | — | — |
| Operating expense excluding cost of sales | — | — | — | — |
1,145,000
GBP
|
— | — |
1,800,000
GBP
|
— | — | — | — | — | — |
| Miscellaneous other comprehensive income [abstract] | ||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract] | ||||||||||||||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations | — | — | — | — |
33,000
GBP
|
— | — |
102,000
GBP
|
— | — | — | — | — | — |
| Comprehensive income, continuing and discontinued operations [abstract] | ||||||||||||||
| Comprehensive income |
–
GBP
|
–
GBP
|
5,920,000
GBP
|
269,000
GBP
|
6,327,000
GBP
|
11,978,000
GBP
|
–
GBP
|
31,064,000
GBP
|
11,563,000
GBP
|
–
GBP
|
19,000
GBP
|
–
GBP
|
–
GBP
|
19,520,000
GBP
|