v3.23.3
Goodwill - Narrative (Details)
£ in Thousands
12 Months Ended
Jun. 30, 2023
GBP (£)
cgu
Jun. 09, 2023
GBP (£)
May 10, 2023
GBP (£)
Oct. 06, 2022
GBP (£)
Jun. 30, 2022
GBP (£)
Feb. 08, 2022
GBP (£)
Jun. 30, 2021
GBP (£)
Apr. 01, 2021
GBP (£)
Aug. 17, 2020
GBP (£)
Disclosure of detailed information about business combination [line items]                  
Number of CGUs | cgu 1                
Goodwill £ 240,818       £ 145,916        
Terminal growth rate 1.50%       1.50%   1.50%    
Discount rate 14.90%       13.50%   9.30%    
Lexicon                  
Disclosure of detailed information about business combination [line items]                  
Percentage of voting equity interests acquired 100.00%                
Goodwill £ 44,100     £ 44,050          
Mudbath & Co Pty Ltd                  
Disclosure of detailed information about business combination [line items]                  
Percentage of voting equity interests acquired 100.00%                
Goodwill     £ 12,766            
Provisional goodwill £ 12,800                
DEK Corporation Pty Ltd                  
Disclosure of detailed information about business combination [line items]                  
Percentage of voting equity interests acquired 100.00%                
Goodwill   £ 45,635              
Provisional goodwill £ 45,600                
Business Agility Consulting BAC                  
Disclosure of detailed information about business combination [line items]                  
Percentage of voting equity interests acquired         100.00%        
Goodwill         £ 12,800 £ 12,780      
Comtrade CDS                  
Disclosure of detailed information about business combination [line items]                  
Percentage of voting equity interests acquired             100.00%    
Goodwill             £ 32,800   £ 32,779
FIVE                  
Disclosure of detailed information about business combination [line items]                  
Percentage of voting equity interests acquired             100.00%    
Goodwill             £ 15,600    
Provisional goodwill             £ 15,900    
Levvel LLC                  
Disclosure of detailed information about business combination [line items]                  
Percentage of voting equity interests acquired             100.00%    
Goodwill         £ 27,153   £ 27,200 £ 25,057  
Provisional goodwill             £ 25,100