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Related Party Disclosures | 12 Months Ended
--- | ---
Dec. 31, 2020
Related Party Transactions [Abstract] |
Related party disclosures | 15. Related party disclosures Compensation of key management personnel of the Company
|  | 2020 |  |  | 2019 |  |  | 2018 |
|  | (in thousands) |
|  | £ |  |  | £ |  |  | £ |
Short-term employee benefits |  |  | 1,658 |  |  |  | 1,686 |  |  |  | 1,687 |
Pension and other benefits |  |  | 79 |  |  |  | 69 |  |  |  | 72 |
Share-based payments |  |  | 3,377 |  |  |  | 1,976 |  |  |  | 893 |
|  |  | 5,114 |  |  |  | 3,731 |  |  |  | 2,652 |
The amounts disclosed in the table above are the amounts recognized as an expense during the reporting year.

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