Statement Of Financial Position [Abstract]
| Concept |
As at 2022-05-31 |
As at 2022-05-31 |
As at 2022-05-31 |
As at 2022-05-31 |
As at 2022-05-31 |
As at 2022-05-31 |
As at 2022-05-31 |
As at 2021-05-31 |
As at 2021-05-31 |
As at 2021-05-31 |
As at 2021-05-31 |
As at 2021-05-31 |
As at 2021-05-31 |
As at 2021-05-31 |
As at 2020-05-31 |
As at 2020-05-31 |
As at 2020-05-31 |
As at 2020-05-31 |
As at 2020-05-31 |
As at 2020-05-31 |
As at 2020-05-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — |
12,900,000
GBP
|
— | — |
11,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — | — | — |
22,000,000
GBP
|
— | — |
23,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — | — | — |
266,100,000
GBP
|
— | — |
182,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — | — | — |
118,600,000
GBP
|
— | — |
21,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Current tax assets | — | — | — | — | — | — |
3,100,000
GBP
|
— | — |
4,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — |
1,400,000
GBP
|
— | — |
2,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — | — |
73,200,000
GBP
|
— | — |
116,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
95,000,000
GBP
|
| Assets | — | — | — | — | — | — |
576,400,000
GBP
|
— | — |
432,300,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — | — | — | — |
3,100,000
GBP
|
— | — |
3,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — | — |
11,300,000
GBP
|
— | — |
21,900,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — | — |
224,000,000
GBP
|
— | — |
223,200,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent | — | — | — | — | — | — |
293,200,000
GBP
|
— | — |
266,200,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity |
–
GBP
|
42,300,000
GBP
|
35,100,000
GBP
|
3,100,000
GBP
|
224,000,000
GBP
|
11,300,000
GBP
|
293,200,000
GBP
|
20,300,000
GBP
|
3,100,000
GBP
|
266,200,000
GBP
|
223,200,000
GBP
|
42,300,000
GBP
|
800,000
GBP
|
21,900,000
GBP
|
150,900,000
GBP
|
2,800,000
GBP
|
42,300,000
GBP
|
–
GBP
|
31,900,000
GBP
|
22,000,000
GBP
|
205,900,000
GBP
|
| Liabilities [abstract] | |||||||||||||||||||||
| Current tax liabilities | — | — | — | — | — | — |
7,400,000
GBP
|
— | — |
4,000,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — | — | — | — |
1,600,000
GBP
|
— | — |
1,200,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — | — |
283,200,000
GBP
|
— | — |
166,100,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |