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] | |||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | — |
36,600,000
GBP
|
— | — |
38 .6
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — | — | — |
60 4 .7
GBP
|
— | — |
1 0 7. 3
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — | — | — |
2 9 2 .1
GBP
|
— | — |
32,700,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — | — |
1 7. 5
GBP
|
— | — |
12 . 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — | — |
1,12 5 . 8
GBP
|
— | — |
38 0. 2
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||
| Cash and cash equivalents | — | — | — | — | — | — |
1 ,246.4
GBP
|
— | — |
655,200,000
GBP
|
— | — | — | — | — | — | — | — | — |
486,200,000
GBP
|
— |
| Current assets | — | — | — | — | — | — |
1 ,999. 1
GBP
|
— | — |
1 , 3 4 7. 9
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — | — |
3 ,12 6 .1
GBP
|
— | — |
1, 7 2 8 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Retained earnings | — | — | — | — | — | — |
1 , 1 86.0
GBP
|
— | — |
860,500,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — | — | — | — | — | — |
8. 4
GBP
|
— | — |
12 . 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity |
59 0.0
GBP
|
117. 6
GBP
|
–
GBP
|
12 5 . 8
GBP
|
8. 4
GBP
|
1 , 1 86.0
GBP
|
2 , 0 2 7. 8
GBP
|
53,200,000
GBP
|
–
GBP
|
1 , 1 33.3
GBP
|
125 . 8
GBP
|
81. 0
GBP
|
12 . 8
GBP
|
860,500,000
GBP
|
12 5 . 8
GBP
|
–
GBP
|
81 . 0
GBP
|
74 .1
GBP
|
6 41 . 7
GBP
|
935 . 9
GBP
|
1 3.3
GBP
|
| Liabilities [abstract] | |||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||
| Deferred tax liabilities | — | — | — | — | — | — |
6 7. 2
GBP
|
— | — |
800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — | — |
37 7. 4
GBP
|
— | — |
11 6 . 0
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||
| Liabilities included in disposal groups classified as held for sale | — | — | — | — | — | — |
800,000
GBP
|
— | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — | — |
72 0 .1
GBP
|
— | — |
478 . 8
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — | — |
1 ,098.3
GBP
|
— | — |
594,800,000
GBP
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — | — | — | — |
3 ,12 6 .1
GBP
|
— | — |
1, 7 2 8 .1
GBP
|
— | — | — | — | — | — | — | — | — | — | — |