v3.24.3
Business combinations - Acquisition Date Fair Values of Each Major Class of Consideration Transferred (Details) - GBP (£)
£ in Thousands
 13 Months Ended 14 Months Ended
Jun. 30, 2024
Jun. 30, 2024
Feb. 29, 2024
Feb. 27, 2024
Aug. 03, 2023
Jun. 09, 2023
May 10, 2023
Oct. 06, 2022
Feb. 08, 2022
GalaxE                  
Disclosure of detailed information about business combination [line items]                  
Initial cash consideration     £ 223,045            
Equity interests of acquirer     13,778            
Fair value of contingent consideration     4,443            
Total consideration transferred, acquisition-date fair value £ 241,266 £ 241,266 £ 241,266            
EQ Tek                  
Disclosure of detailed information about business combination [line items]                  
Initial cash consideration       £ 13,881          
Fair value of deferred consideration       943          
Total consideration transferred, acquisition-date fair value       £ 14,824          
TLM                  
Disclosure of detailed information about business combination [line items]                  
Initial cash consideration         £ 3,214        
Fair value of deferred consideration         741        
Fair value of contingent consideration - tax refund         296        
Fair value of contingent consideration         4,082        
Total consideration transferred, acquisition-date fair value         £ 8,333        
DEK Corporation Pty Ltd                  
Disclosure of detailed information about business combination [line items]                  
Initial cash consideration 43,003 43,003       £ 44,272      
Equity interests of acquirer 5,337 5,337       5,337      
Fair value of deferred consideration 2,468 2,468       2,468      
Fair value of contingent consideration 5,071 5,071       5,071      
Total consideration transferred, acquisition-date fair value 55,879 55,879       £ 57,148      
Adjustments to initial cash consideration (1,269)                
Adjustments to equity consideration 0                
Adjustments to deferred consideration 0                
Adjustments to contingent consideration 0                
Adjustments to consideration transferred (1,269)                
Mudbath & Co Pty Ltd                  
Disclosure of detailed information about business combination [line items]                  
Initial cash consideration 7,331 7,331         £ 7,361    
Equity interests of acquirer 2,831 2,831         2,831    
Fair value of deferred consideration 1,084 1,084         1,084    
Fair value of contingent consideration 3,823 3,823         3,823    
Total consideration transferred, acquisition-date fair value £ 15,069 15,069         £ 15,099    
Adjustments to initial cash consideration   (30)              
Adjustments to equity consideration   0              
Adjustments to deferred consideration   0              
Adjustments to contingent consideration   0              
Adjustments to consideration transferred   £ (30)              
Lexicon                  
Disclosure of detailed information about business combination [line items]                  
Initial cash consideration               £ 32,025  
Equity interests of acquirer               9,975  
Fair value of deferred consideration               1,416  
Fair value of contingent consideration               5,877  
Total consideration transferred, acquisition-date fair value               £ 49,293  
Business Agility Consulting BAC                  
Disclosure of detailed information about business combination [line items]                  
Initial cash consideration                 £ 5,400
Equity interests of acquirer                 1,505
Fair value of deferred consideration                 1,225
Fair value of contingent consideration                 6,901
Total consideration transferred, acquisition-date fair value                 £ 15,031