Accounts Receivable, Net of Allowance, and Contract Assets and Liabilities - Schedule of Accounts Receivable, Net of Allowance and Contract Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Receivables [Abstract]
Contract billings	$ 1,551,800	$ 1,408,100
Less allowance	(8,900)	(8,400)
Accounts receivable, net of allowance	1,542,913	1,399,732
Contract Assets [Abstract]
Retainage	351,000	401,900
Unbilled receivables	1,616,000	1,328,000
Contract assets	$ 1,967,046	$ 1,729,886