v3.23.3
Leases - Right-of-Use Assets (Details) - GBP (£)
£ in Thousands
 12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Disclosure of quantitative information about right-of-use assets [line items]      
Right-of-use assets beginning of period £ 50,818 £ 57,193  
Additions 17,349 3,687  
Disposals (24) (845)  
Derecognition as a result of subleases (6) (423)  
Modifications 8,187 1,430  
Depreciation charge (11,861) (10,958) £ (10,449)
Reversal of the impairment charge 131 (214) (1,697)
Effect of foreign exchange translations 490 948  
Right-of-use assets end of period 65,084 50,818 57,193
Leasehold Buildings      
Disclosure of quantitative information about right-of-use assets [line items]      
Right-of-use assets beginning of period 50,736 57,019  
Additions 17,349 3,640  
Disposals (24) 787  
Derecognition as a result of subleases (6) (423)  
Modifications 8,187 (1,433)  
Depreciation charge (11,809) (10,878)  
Reversal of the impairment charge 131 (214)  
Effect of foreign exchange translations 489 946  
Right-of-use assets end of period 65,053 50,736 57,019
Vehicles      
Disclosure of quantitative information about right-of-use assets [line items]      
Right-of-use assets beginning of period 82 174  
Additions 0 47  
Disposals 0 (58)  
Derecognition as a result of subleases 0 0  
Modifications 0 (3)  
Depreciation charge (52) (80)  
Reversal of the impairment charge 0 0  
Effect of foreign exchange translations 1 2  
Right-of-use assets end of period £ 31 £ 82 £ 174