Quarterly report pursuant to Section 13 or 15(d)

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

v3.22.1
Business combinations - Schedule of Asset Acquired and Liabilities Assumed, VES (Details) - USD ($)
$ in Thousands
 6 Months Ended
Mar. 31, 2022
Sep. 30, 2021
May 28, 2021
Mar. 31, 2022
Mar. 31, 2021
Allocation of Assets and Liabilities          
Cash consideration paid, net of cash acquired       $ 4 $ 413,940
Goodwill $ 1,780,370 $ 1,774,406   1,780,370  
VES Group, Inc.          
Allocation of Assets and Liabilities          
Cash consideration paid, net of cash acquired 1,360,231 1,360,231 $ 1,370,000    
Estimated additional cash payments 9,623 4,635      
Estimated cash consideration, net of cash acquired 1,369,854 1,364,866      
Accounts receivable - billed, billable and unbilled 44,078 44,078   44,078  
Prepaid expenses and other current assets 7,955 7,955   7,955  
Property and equipment, net 8,021 9,113   8,021  
Operating lease right-of-use assets 18,898 18,898   18,898  
Intangible assets 664,000 664,000   664,000  
Other assets 7,166 7,166   7,166  
Total identifiable assets acquired 750,118 751,210   750,118  
Accounts payable and accrued compensation 37,822 42,182   37,822  
Operating lease liabilities 18,898 18,898   18,898  
Income taxes payable, current 5,673 5,673   5,673  
Deferred income taxes 172,644 171,497   172,644  
Other long-term liabilities 12,270 12,270   12,270  
Total identifiable liabilities assumed 247,307 250,520   247,307  
Net identifiable assets acquired 502,811 500,690   502,811  
Goodwill 867,043 864,176   867,043  
Net assets acquired $ 1,369,854 $ 1,364,866   1,369,854  
Adjustments          
Cash consideration paid, net of cash acquired       0  
Estimated additional cash payments       4,988  
Estimated cash consideration, net of cash acquired       4,988  
Accounts receivable - billed, billable and unbilled       0  
Prepaid expenses and other current assets       0  
Property and equipment, net       (1,092)  
Operating lease right-of-use assets       0  
Intangible assets       0  
Other assets       0  
Total identifiable assets acquired       (1,092)  
Accounts payable and accrued compensation       (4,360)  
Operating lease liabilities       0  
Income taxes payable, current       0  
Deferred income taxes       1,147  
Other long-term liabilities       0  
Total identifiable liabilities assumed       (3,213)  
Net identifiable assets acquired       2,121  
Goodwill       2,867  
Net assets acquired       $ 4,988