Property and Equipment (Tables)

9 Months Ended

Sep. 30, 2023

Property, Plant and Equipment [Abstract]

Summary of property and equipment

	September 30,		December 31,
	2023		2022
Automobiles and trucks	$	2,008	$	2,232
Building and improvements		36,931		36,952
Construction equipment		125,521		130,660
Vessels and other equipment		91,308		91,495
Office equipment		6,909		6,885
		262,677		268,224
Less: Accumulated depreciation		(199,736)		(195,948)
Net book value of depreciable assets		62,941		72,276
Construction in progress		1,696		816
Land		24,948		27,885
	$	89,585	$	100,977