Statement Of Cash Flows [Abstract]
| Concept |
2021-09-01 to 2022-08-31 |
As at 2022-08-31 |
2020-09-01 to 2021-08-31 |
As at 2021-08-31 |
As at 2020-08-31 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Income taxes paid (refund), classified as operating activities |
3,400,000
GBP
|
— |
3 7. 0
GBP
|
— | — |
| Cash flows from (used in) operating activities |
12 0 . 4
GBP
|
— |
21 5 .1
GBP
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities |
–
GBP
|
— |
286,400,000
GBP
|
— | — |
| Purchase of property, plant and equipment, classified as investing activities |
73,700,000
GBP
|
— |
5 5 .1
GBP
|
— | — |
| Purchase of intangible assets, classified as investing activities |
10 9. 2
GBP
|
— |
1 0 2 . 0
GBP
|
— | — |
| Dividends received, classified as investing activities |
–
GBP
|
— |
0 .1
GBP
|
— | — |
| Interest received, classified as investing activities |
900,000
GBP
|
— |
200,000
GBP
|
— | — |
| Cash flows from (used in) investing activities |
18 2 . 0
GBP
|
— |
4 4 3 . 2
GBP
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||
| Proceeds from borrowings, classified as financing activities |
–
GBP
|
— |
2 1. 9
GBP
|
— | — |
| Payments of lease liabilities, classified as financing activities |
2 6 . 3
GBP
|
— |
23,900,000
GBP
|
— | — |
| Interest paid, classified as financing activities |
1 1 .1
GBP
|
— |
5 .7
GBP
|
— | — |
| Cash flows from (used in) financing activities |
3 7. 4
GBP
|
— |
4 83.4
GBP
|
— | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes |
3 3 9 . 8
GBP
|
— |
255,300,000
GBP
|
— | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents |
0 .1
GBP
|
— |
0 .1
GBP
|
— | — |
| Cash and cash equivalents | — |
323 .0
GBP
|
— |
6 6 2 .7
GBP
|
4 0 7. 5
GBP
|