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Employees - Key management compensation (Details) - GBP (£)
£ in Thousands
12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Employees      
Short-term employee benefits £ (7,620) £ (8,601) £ (7,908)
Share-based payments (5,275) (3,654) (3,131)
Post-employment benefits (20) (71) (70)
Total key management compensation £ (12,915) £ (12,326) £ (11,109)