Annual report pursuant to Section 13 and 15(d)

Business combinations - Schedule of Asset Acquired and Liabilities Assumed, VES (Details)

v3.21.2
Business combinations - Schedule of Asset Acquired and Liabilities Assumed, VES (Details) - USD ($)
$ in Thousands
 4 Months Ended 12 Months Ended
Sep. 30, 2021
May 28, 2021
Sep. 30, 2021
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2019
Initial Allocation of Assets and Liabilities            
Cash consideration paid, net of cash acquired       $ 1,798,915 $ 7,066 $ 436,839
Goodwill $ 1,774,406   $ 1,774,406 1,774,406 $ 593,129 $ 584,469
VES Group, Inc.            
Initial Allocation of Assets and Liabilities            
Cash consideration paid, net of cash acquired 1,360,231 $ 1,360,231        
Estimated additional cash payments 4,635 7,494        
Estimated cash consideration, net of cash acquired 1,364,866 1,367,725        
Accounts receivable - billed, billable and unbilled 44,078 44,078 44,078 44,078    
Prepaid expenses and other current assets 7,955 13,911 7,955 7,955    
Property and equipment, net 9,113 9,113 9,113 9,113    
Operating lease right-of-use assets 18,898 18,898 18,898 18,898    
Intangible assets 664,000 664,000 664,000 664,000    
Other assets 7,166 12,816 7,166 7,166    
Total identifiable assets acquired 751,210 762,816 751,210 751,210    
Accounts payable and other liabilities 42,182 42,978 42,182 42,182    
Operating lease liabilities 18,898 18,898 18,898 18,898    
Income taxes payable, current 5,673 6,196 5,673 5,673    
Deferred income taxes 171,497 177,626 171,497 171,497    
Other long-term liabilities 12,270 6,667 12,270 12,270    
Total identifiable liabilities assumed 250,520 252,365 250,520 250,520    
Net identifiable assets acquired 500,690 510,451 500,690 500,690    
Goodwill 864,176 857,274 864,176 864,176    
Net assets acquired $ 1,364,866 $ 1,367,725 1,364,866 $ 1,364,866    
Adjustments            
Cash consideration paid, net of cash acquired     0      
Estimated additional cash payments     (2,859)      
Estimated cash consideration, net of cash acquired     (2,859)      
Accounts receivable - billed, billable and unbilled     0      
Prepaid expenses and other current assets     (5,956)      
Property and equipment, net     0      
Operating lease right-of-use assets     0      
Intangible assets     0      
Other assets     (5,650)      
Total identifiable assets acquired     (11,606)      
Accounts payable and other liabilities     (796)      
Operating lease liabilities     0      
Income taxes payable, current     (523)      
Deferred income taxes     (6,129)      
Other long-term liabilities     5,603      
Total identifiable liabilities assumed     (1,845)      
Net identifiable assets acquired     (9,761)      
Goodwill     6,902      
Net assets acquired     $ (2,859)