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Directors' and key management remuneration - Directors (Details) - GBP (£)
£ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Related party transactions    
Short-term benefits £ 18,124 £ 18,718
Share-based payments 2,491 3,249
Post-employment benefits 380 474
Director    
Related party transactions    
Short-term benefits 6,329 6,057
Share-based payments 549 609
Total Directors' remuneration 6,878 6,666
Post-employment benefits 0 0
Non-executive directors    
Related party transactions    
Short-term benefits 1,641 1,708
Chairman and executive directors    
Related party transactions    
Short-term benefits £ 4,688 £ 4,349