Accounts Receivable, Net of Allowance, and Contract Assets and Liabilities - Schedule of Accounts Receivable, Net of Allowance and Contract Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Receivables [Abstract]
Contract billings	$ 1,022,900	$ 1,027,100
Less allowance	(8,300)	(7,800)
Accounts receivable, net of allowance	1,014,616	1,019,324
Contract Assets [Abstract]
Retainage	273,300	296,800
Unbilled receivables	1,246,100	931,100
Contract assets	$ 1,519,387	$ 1,227,927