Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Salaries and wages	$ 119,122	$ 102,779
Employee benefits	371,435	342,707
Self-insurance liability	17,723	24,193
Project cost accruals	307,200	254,070
Other accrued expenses	78,945	77,674
Total accrued expenses and other current liabilities	$ 894,425	$ 801,423