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Directors' and key management remuneration - Key management (Details) - GBP (£)
£ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Directors' and key management remuneration    
Short-term benefits £ 18,124 £ 18,718
Post-employment benefits 380 474
Share-based payments 2,491 3,249
Total remuneration £ 20,995 £ 22,441