Contracts in Progress (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Contractors [Abstract]
Costs incurred on uncompleted contracts	$ 1,428,144	$ 1,251,853
Estimated earnings	181,619	180,705
Costs incurred and estimated earnings on uncompleted contracts	1,609,763	1,432,558
Less: Billings to date	(1,612,800)	(1,426,375)
Billings in excess of costs and estimated earnings on uncompleted contracts, net	(3,037)
Costs and estimated earnings in excess of billings on uncompleted contracts, net		6,183
Contract assets	44,618	43,903
Contract liabilities	$ (47,655)	$ (37,720)