Statement Of Cash Flows [Abstract]
| Concept |
As at 2023-09-30 |
2022-10-01 to 2023-09-30 |
2021-10-01 to 2022-09-30 |
As at 2022-09-30 |
As at 2021-09-30 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Cash flows from (used in) operations | — |
57,704,000
GBP
|
49,409,000
GBP
|
— | — |
| Income taxes paid (refund), classified as operating activities | — |
8,143,000
GBP
|
9,981,000
GBP
|
— | — |
| Cash flows from (used in) operating activities | — |
49,561,000
GBP
|
39,428,000
GBP
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
24,932,000
GBP
|
358,763,000
GBP
|
— | — |
| Purchase of property, plant and equipment, classified as investing activities | — |
411,000
GBP
|
270,000
GBP
|
— | — |
| Purchase of intangible assets, classified as investing activities | — |
8,727,000
GBP
|
4,209,000
GBP
|
— | — |
| Interest received, classified as investing activities | — |
181,000
GBP
|
–
GBP
|
— | — |
| Cash flows from (used in) investing activities | — |
34,077,000
GBP
|
384,188,000
GBP
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||
| Proceeds from issuing shares | — |
328,000
GBP
|
–
GBP
|
— | — |
| Proceeds from borrowings, classified as financing activities | — |
21,250,000
GBP
|
–
GBP
|
— | — |
| Repayments of borrowings, classified as financing activities | — |
69,110,000
GBP
|
359,000
GBP
|
— | — |
| Payments of lease liabilities, classified as financing activities | — |
794,000
GBP
|
959,000
GBP
|
— | — |
| Interest paid, classified as financing activities | — |
10,651,000
GBP
|
7,283,000
GBP
|
— | — |
| Cash flows from (used in) financing activities | — |
59,166,000
GBP
|
9,960,000
GBP
|
— | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
43,682,000
GBP
|
354,720,000
GBP
|
— | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents | — |
404,000
GBP
|
9,086,000
GBP
|
— | — |
| Cash and cash equivalents |
8,539,000
GBP
|
— | — |
51,817,000
GBP
|
397,451,000
GBP
|