Contracts in Progress (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Contractors [Abstract]
Costs incurred on uncompleted contracts	$ 1,420,893	$ 1,394,243
Estimated earnings	182,221	176,904
Costs incurred and estimated earnings on uncompleted contracts	1,603,114	1,571,147
Less: Billings to date	(1,589,011)	(1,553,704)
Costs and estimated earnings in excess of billings on uncompleted contracts, net	14,103	17,443
Contract assets	58,495	81,522
Contract liabilities	$ (44,392)	$ (64,079)