Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2023-09-30 |
As at 2022-09-30 |
As at 2021-09-30 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
734,000
GBP
|
526,000
GBP
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Other intangible assets |
221,112,000
GBP
|
246,475,000
GBP
|
— |
| Goodwill |
474,315,000
GBP
|
488,978,000
GBP
|
— |
| Trade and other non-current receivables [abstract] | |||
| Trade and other non-current receivables |
113,000
GBP
|
90,000
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
17,894,000
GBP
|
15,790,000
GBP
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
8,539,000
GBP
|
51,817,000
GBP
|
397,451,000
GBP
|
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
108,969,000
GBP
|
149,862,000
GBP
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
12,861,000
GBP
|
30,983,000
GBP
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
26,407,000
GBP
|
18,780,000
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
12,000
GBP
|
12,000
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
4,361,000
GBP
|
36,412,000
GBP
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Reserve of exchange differences on translation |
36,203,000
GBP
|
66,740,000
GBP
|
— |
| Miscellaneous equity [abstract] | |||
| Reserve of share-based payments |
23,485,000
GBP
|
34,690,000
GBP
|
— |
| Capital redemption reserve |
5,000
GBP
|
5,000
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
726,039,000
GBP
|
806,955,000
GBP
|
— |
| Liabilities |
196,079,000
GBP
|
267,632,000
GBP
|
— |
| Assets (liabilities) |
529,960,000
GBP
|
539,323,000
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
26,534,000
GBP
|
69,172,000
GBP
|
— |
| Current liabilities |
42,965,000
GBP
|
50,984,000
GBP
|
— |
| Assets less current liabilities [abstract] |