Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Payables and Accruals [Abstract]
Salaries and wages	$ 102,779	$ 85,328
Employee benefits	342,707	298,914
Self-insurance liability	24,193	25,351
Project cost accruals	254,070	147,378
Other accrued expenses	77,674	73,222
Total accrued expenses and other current liabilities	$ 801,423	$ 630,193