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Property and Equipment (Tables)
9 Months Ended
Sep. 30, 2024
Property, Plant and Equipment [Abstract]  
Summary of property and equipment

    

September 30, 

    

December 31, 

2024

2023

Automobiles and trucks

$

1,789

$

1,985

Building and improvements

 

39,401

 

36,931

Construction equipment

 

120,968

 

125,705

Vessels and other equipment

 

96,009

 

94,030

Office equipment

 

7,177

 

6,708

 

265,344

 

265,359

Less: Accumulated depreciation

 

(209,644)

 

(206,243)

Net book value of depreciable assets

 

55,700

 

59,116

Construction in progress

 

5,606

 

3,770

Land

 

24,948

 

24,948

$

86,254

$

87,834