Property and Equipment (Tables)

9 Months Ended

Sep. 30, 2022

Property, Plant and Equipment [Abstract]

Summary of property and equipment

	September 30,		December 31,
	2022		2021
Automobiles and trucks	$	2,306	$	2,337
Building and improvements		36,953		34,796
Construction equipment		132,268		137,786
Vessels and other equipment		85,016		82,455
Office equipment		6,840		6,430
		263,383		263,804
Less: Accumulated depreciation		(197,330)		(191,542)
Net book value of depreciable assets		66,053		72,262
Construction in progress		7,836		6,507
Land		27,885		27,885
	$	101,774	$	106,654