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Segment Information (Tables)
 12 Months Ended
Dec. 31, 2017
Segment Reporting [Abstract]  
Schedule of Segment Reporting
Segment information for the periods presented is provided as follows:

 
Year Ended December 31, 2017
Year Ended December 31, 2016
Marine
 
 
         Contract revenues
$
285,736

$
284,632

         Operating loss
(18,406
)
(12,403
)
         Depreciation and amortization expense
(20,370
)
(21,398
)
 
 
 
         Total assets
$
260,935

$
279,362

         Property, plant and equipment, net
128,421

143,425

 
 
 
Concrete
 
 
        Contract revenues
$
292,817

$
293,604

        Operating income
19,944

16,477

        Depreciation and amortization expense
(9,121
)
(12,764
)
 
 
 
        Total assets
$
172,350

$
168,314

        Property, plant and equipment, net
17,857

14,657