v3.24.3
Goodwill - Narrative (Details)
£ in Thousands
12 Months Ended
Jun. 30, 2024
GBP (£)
cash_generating_unit
capability
Jun. 30, 2024
GBP (£)
cgu
capability
Apr. 10, 2024
GBP (£)
Feb. 27, 2024
GBP (£)
Aug. 03, 2023
GBP (£)
Jun. 30, 2023
GBP (£)
Jun. 09, 2023
GBP (£)
May 10, 2023
GBP (£)
Oct. 06, 2022
GBP (£)
Jun. 30, 2022
GBP (£)
Feb. 08, 2022
GBP (£)
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]                      
Number of CGUs 1 1                  
Goodwill £ 515,724 £ 515,724       £ 239,249 [1]          
Number of completed acquisitions | capability 3 3                  
Terminal growth rate 2.00% 2.00%       1.50%       1.50%  
Discount rate applied to cash flow projections 12.80% 12.80%       14.90%       13.50%  
TLM                      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]                      
Percentage of voting equity interests acquired         100.00%            
Goodwill         £ 14,360            
EQ Tek                      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]                      
Percentage of voting equity interests acquired       100.00%              
Goodwill       £ 13,325              
Provisional goodwill       £ 13,300              
GalaxE Group, Inc                      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]                      
Percentage of voting equity interests acquired     100.00%                
Provisional goodwill     £ 252,200                
Lexicon                      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]                      
Percentage of voting equity interests acquired           100.00%          
Goodwill           £ 44,100     £ 44,050    
Mudbath & Co Pty Ltd                      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]                      
Goodwill £ 12,728 £ 12,728           £ 12,766      
Provisional goodwill           12,800          
DEK Corporation Pty Ltd                      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]                      
Goodwill £ 44,104 £ 44,104         £ 45,635        
Provisional goodwill           £ 45,600          
Business Agility Consulting BAC                      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]                      
Percentage of voting equity interests acquired                   100.00%  
Goodwill                   £ 12,800 £ 12,780
[1]
(1) Restated to include the effect of revisions arising from provisional to final acquisition accounting for DEK and Mudbath (refer to note 3C for details).