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Share-based payments - Share based payments charge (Details) - GBP (£)
£ in Thousands
6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Share-based compensation expense with respect to third parties £ 749  
Other reserves    
Charge recognized for equity settled share based payment transactions 6,465  
Accumulated deficit    
Charge recognized for equity settled share based payment transactions £ 80 £ 76