Statement Of Financial Position [Abstract]
| Concept |
As at 2023-04-30 |
As at 2023-04-30 |
As at 2023-04-30 |
As at 2023-04-30 |
As at 2023-04-30 |
As at 2023-04-30 |
As at 2023-04-30 |
As at 2022-05-01 |
As at 2022-05-01 |
As at 2022-05-01 |
As at 2022-05-01 |
As at 2022-05-01 |
As at 2022-05-01 |
As at 2022-05-01 |
As at 2021-05-02 |
As at 2021-05-02 |
As at 2021-05-02 |
As at 2021-05-02 |
As at 2021-05-02 |
As at 2021-05-02 |
As at 2021-05-02 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — |
154,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
112,500,000
GBP
|
— | — | — | — | — | — | — |
| Right-of-use assets | — |
359,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
293,600,000
GBP
|
— | — | — | — | — | — | — |
| Goodwill | — |
182,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
165,100,000
GBP
|
— | — | — | — | — | — | — |
| Intangible assets other than goodwill | — |
17,600,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
18,100,000
GBP
|
— | — | — | — | — | — | — |
| Deferred tax assets | — |
6,200,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
9,300,000
GBP
|
— | — | — | — | — | — | — |
| Cash and cash equivalents | — |
136,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
105,900,000
GBP
|
— | — | — | — | — |
76,100,000
GBP
|
— |
| Assets | — |
1,235,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
1,030,000,000
GBP
|
— | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — |
3,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
3,000,000
GBP
|
— | — | — | — | — | — | — |
| Retained earnings | — |
337,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
214,300,000
GBP
|
— | — | — | — | — | — | — |
| Share premium | — |
147,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
147,100,000
GBP
|
— | — | — | — | — | — | — |
| Other reserves | — |
18,400,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
6,700,000
GBP
|
— | — | — | — | — | — | — |
| Equity |
147,100,000
GBP
|
469,300,000
GBP
|
337,000,000
GBP
|
2,800,000
GBP
|
3,000,000
GBP
|
2,200,000
GBP
|
18,400,000
GBP
|
3,000,000
GBP
|
2,200,000
GBP
|
147,100,000
GBP
|
6,700,000
GBP
|
214,300,000
GBP
|
5,800,000
GBP
|
361,300,000
GBP
|
2,200,000
GBP
|
–
GBP
|
147,100,000
GBP
|
4,000,000
GBP
|
3,000,000
GBP
|
250,300,000
GBP
|
106,400,000
GBP
|
| Liabilities [abstract] | |||||||||||||||||||||
| Deferred tax liabilities | — |
3,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
400,000
GBP
|
— | — | — | — | — | — | — |
| Liabilities | — |
765,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
668,700,000
GBP
|
— | — | — | — | — | — | — |