Statement Of Financial Position [Abstract]
| Concept |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2022-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2021-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
As at 2020-06-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — |
113,100,000
GBP
|
— |
117,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — | — | — |
101,600,000
GBP
|
— |
128,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — | — | — |
493,600,000
GBP
|
— |
504,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — |
1,400,000
GBP
|
— |
3,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — | — |
716,400,000
GBP
|
— |
759,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||
| Current inventories | — | — | — | — | — | — |
2,300,000
GBP
|
— |
2,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current tax assets, current | — | — | — | — | — | — |
8,100,000
GBP
|
— |
10,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — |
97,900,000
GBP
|
— |
69,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
71,100,000
GBP
|
— |
| Current assets | — | — | — | — | — | — |
142,500,000
GBP
|
— |
98,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — |
858,900,000
GBP
|
— |
858,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||
| Issued capital | — | — | — | — | — | — |
65,000,000
GBP
|
— |
65,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — |
158,700,000
GBP
|
— |
92,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — | — |
155,700,000
GBP
|
— |
155,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — | — |
427,400,000
GBP
|
— |
361,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — | — | — | — | — |
100,000
GBP
|
— |
100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
158,700,000
GBP
|
155,700,000
GBP
|
100,000
GBP
|
33,400,000
GBP
|
14,600,000
GBP
|
427,400,000
GBP
|
427,300,000
GBP
|
65,000,000
GBP
|
361,200,000
GBP
|
33,400,000
GBP
|
14,600,000
GBP
|
155,700,000
GBP
|
65,000,000
GBP
|
100,000
GBP
|
92,600,000
GBP
|
361,300,000
GBP
|
18,800,000
GBP
|
161,300,000
GBP
|
98,400,000
GBP
|
200,000
GBP
|
366,100,000
GBP
|
54,200,000
GBP
|
365,900,000
GBP
|
33,400,000
GBP
|
| Liabilities [abstract] | ||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||||||||
| Non-current provisions | — | — | — | — | — | — |
5,600,000
GBP
|
— |
16,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other non-current payables | — | — | — | — | — | — |
–
GBP
|
— |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — | — | — |
20,500,000
GBP
|
— |
18,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — | — |
215,100,000
GBP
|
— |
280,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||||||||
| Current provisions | — | — | — | — | — | — |
6,900,000
GBP
|
— |
5,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Trade and other current payables | — | — | — | — | — | — |
131,100,000
GBP
|
— |
126,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current tax liabilities, current | — | — | — | — | — | — |
4,200,000
GBP
|
— |
3,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — | — |
216,500,000
GBP
|
— |
216,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — | — |
431,600,000
GBP
|
— |
496,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |