Contracts in Progress (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Contractors [Abstract]
Costs incurred on uncompleted contracts	$ 1,402,010	$ 1,394,243
Estimated earnings	161,886	176,904
Costs incurred and estimated earnings on uncompleted contracts	1,563,896	1,571,147
Less: Billings to date	(1,551,541)	(1,553,704)
Costs and estimated earnings in excess of billings on uncompleted contracts, net	12,355	17,443
Contract assets	70,974	81,522
Contract liabilities	$ (58,619)	$ (64,079)