v3.23.3
Revenue - Narrative (Details) - GBP (£)
£ in Thousands
12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue £ 794,733 £ 654,757 £ 446,298
Contract liabilities 104,101 176,997  
US      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue £ 257,300 £ 225,200