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Accounting Standards and Significant Accounting Policies (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
New Accounting Pronouncements or Change in Accounting Principle    
Accounts receivable, net $ 647,000 $ 585,500
Accounts receivable, allowance for doubtful accounts 19,643 14,761
Unbilled Revenues    
New Accounting Pronouncements or Change in Accounting Principle    
Accounts receivable, net 127,100 135,400
Unbilled Revenues | Retention Receivable    
New Accounting Pronouncements or Change in Accounting Principle    
Accounts receivable, net $ 9,200 $ 8,600