Disclosure Of Entity's Operating Segments [Text Block]
| Concept |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
|---|---|---|---|---|---|---|---|---|
| Disclosure of entity's operating segments [text block] | — | — | — | — | — | — | — | — |
| Disclosure of operating segments [text block] | — | — | — | — | — | — | — | — |
| Disclosure of operating segments [abstract] | ||||||||
| Disclosure of operating segments [line items] | ||||||||
| Revenue | — |
667,200,000
GBP
|
–
GBP
|
667,200,000
GBP
|
— |
578,100,000
GBP
|
578,100,000
GBP
|
–
GBP
|
| Tax expense (income) | — |
9,200,000
GBP
|
1,500,000
GBP
|
7,700,000
GBP
|
— |
3,100,000
GBP
|
3,800,000
GBP
|
700,000
GBP
|
| Profit (loss) before tax | — |
35,800,000
GBP
|
8,200,000
GBP
|
27,600,000
GBP
|
— |
14,300,000
GBP
|
15,400,000
GBP
|
29,700,000
GBP
|
| Profit (loss) from continuing operations | — |
26,600,000
GBP
|
6,700,000
GBP
|
19,900,000
GBP
|
— |
17,400,000
GBP
|
11,600,000
GBP
|
29,000,000
GBP
|
| Assets |
472,500,000
GBP
|
— | — | — |
467,400,000
GBP
|
— | — | — |
| Liabilities |
240,400,000
GBP
|
— | — | — |
247,400,000
GBP
|
— | — | — |
| Cash flows from (used in) operating activities | — | — | — |
13,800,000
GBP
|
— |
62,500,000
GBP
|
— | — |
| Cash flows from (used in) investing activities | — | — | — |
9,300,000
GBP
|
— |
16,100,000
GBP
|
— | — |
| Cash flows from (used in) financing activities | — | — | — |
22,100,000
GBP
|
— |
19,400,000
GBP
|
— | — |
| Disclosure of products and services [text block] | — | — | — | — | — | — | — | — |
| Disclosure of products and services [abstract] | ||||||||
| Disclosure of products and services [line items] | ||||||||
| Disclosure of geographical areas [text block] | — | — | — | — | — | — | — | — |
| Disclosure of geographical areas [abstract] | ||||||||
| Disclosure of geographical areas [line items] | ||||||||
| Disclosure of major customers [text block] | — | — | — | — | — | — | — | — |
| Disclosure of major customers [abstract] | ||||||||
| Disclosure of major customers [line items] |