Quarterly report pursuant to Section 13 or 15(d)

Revenue, Contract Assets and Liabilities and Other Contract Matters - Additional Information (Details)

v3.24.3
Revenue, Contract Assets and Liabilities and Other Contract Matters - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Long Term Contracts Or Programs Disclosure [Line Items]        
Recognized income associated with revisions to allowance for doubtful accounts $ 200   $ 400  
Allowance for doubtful accounts and credit losses   $ 200   $ 200
Increase to beginning accumulated deficit   $ (30,927)   (41,373)
Litigation Settlement, Expense 32,500   32,500  
Hurricane Ida        
Long Term Contracts Or Programs Disclosure [Line Items]        
Impact of Hurricane Ida, description   During 2021, our operations were impacted by Hurricane Ida, which made landfall near Houma, Louisiana as a high-end Category 4 hurricane, causing debris and damage to our buildings and equipment at our Houma Facilities.    
Insurance payments received   $ 2,000 2,200  
Gain on interruptions insurance recovery     600  
Gain on insurance recovery 300   500  
Insurance receivables       2,000
Forty-Vehicle Ferry        
Long Term Contracts Or Programs Disclosure [Line Items]        
Change in estimated margins 300   500  
Seventy-Vehicle Ferry        
Long Term Contracts Or Programs Disclosure [Line Items]        
Change in estimated margins 1,200   1,800  
Remaining Forty-Vehicle Ferry | Hurricane Ida        
Long Term Contracts Or Programs Disclosure [Line Items]        
Total charges related to deductibles 100   400  
Shipyard Division        
Long Term Contracts Or Programs Disclosure [Line Items]        
Reduction of estimated contract price for liquidated damages, amount       $ 1,400
Change in estimated margins 1,500   2,300  
Fabrication Division        
Long Term Contracts Or Programs Disclosure [Line Items]        
Change in estimated margins $ 700   $ 700