Quarterly report pursuant to Section 13 or 15(d)

Credit Facilities and Debt - Additional Information (Details)

v3.22.2.2
Credit Facilities and Debt - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Jul. 28, 2021
Jun. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Apr. 17, 2020
Line Of Credit Facility [Line Items]            
Maturity date       Jun. 30, 2023    
Surety bonds       $ 121,100,000    
Surety bonds subject to dispute       50,000,000.0    
Surety bonds relates to Active Retained Shipyard Contracts       55,800,000    
Gain on extinguishment of debt     $ 9,061,000   $ 9,061,000  
Short-term Premium Finance Arrangement            
Line Of Credit Facility [Line Items]            
Stated interest rate (percentage)   4.30%        
Short-term premium finance   $ 2,400,000        
short-term premium finance , Number of installment   payable in ten equal monthly installments        
Principal payments       1,000,000.0    
Remaining principal balance       1,500,000    
Fabrication            
Line Of Credit Facility [Line Items]            
Surety bonds subject to dispute       15,300,000    
Maximum            
Line Of Credit Facility [Line Items]            
Letter of credit facility       $ 20,000,000.0    
LC Facility            
Line Of Credit Facility [Line Items]            
Fees on undrawn borrowings (percentage)       0.40%    
Total outstanding letters of credit       $ 1,700,000    
Letter of Credit            
Line Of Credit Facility [Line Items]            
Stated interest rate (percentage)       1.50%    
PPP Loan            
Line Of Credit Facility [Line Items]            
Unsecured loan amount           $ 10,000,000.0
Loan payments $ 9,100,000          
Gain on extinguishment of debt     $ 9,100,000   $ 9,100,000  
PPP Loan threshold requiring an audit by the SBA           $ 2,000,000.0