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Property and Equipment
9 Months Ended
Sep. 30, 2025
Property, Plant and Equipment [Abstract]  
Property and Equipment

6.Property and Equipment

The following is a summary of property and equipment at September 30, 2025 and December 31, 2024:

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September 30, 

    

December 31, 

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2025

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2024

Construction equipment

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$

115,136

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$

117,652

Vessels and other equipment

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100,613

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96,173

Building and improvements

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51,649

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39,401

Automobiles and trucks

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5,802

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1,790

Office equipment

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1,693

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7,562

Gross book value of depreciable assets

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274,893

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262,578

Less: Accumulated depreciation

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(202,819)

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(209,234)

Net book value of depreciable assets

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72,074

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53,344

Construction in progress

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4,092

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7,806

Land

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24,948

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24,948

Property and equipment, net of depreciation

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$

101,114

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$

86,098

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Substantially all depreciation expense is included in the cost of contract revenue in the Company’s Condensed Consolidated Statements of Operations. Substantially all of the assets of the Company are pledged as collateral under the Company’s Credit Agreement as discussed in Note 9. Substantially all of the Company’s long-lived assets are located in the United States.