Quarterly report pursuant to Section 13 or 15(d)

Revenue, Contract Assets and Liabilities and Other Contract Matters - Summary of Disaggregation of Revenue (Details)

v3.20.2
Revenue, Contract Assets and Liabilities and Other Contract Matters - Summary of Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Disaggregation of Revenue [Line Items]        
Revenue $ 54,869 $ 75,802 $ 193,398 $ 223,863
Eliminations        
Disaggregation of Revenue [Line Items]        
Revenue (446) (202) (1,413) (850)
Shipyard        
Disaggregation of Revenue [Line Items]        
Revenue 37,078 43,323 116,525 120,787
F&S        
Disaggregation of Revenue [Line Items]        
Revenue 18,237 32,681 78,286 103,926
Fixed-price and unit-rate        
Disaggregation of Revenue [Line Items]        
Revenue 47,406 64,307 170,307 182,087
Fixed-price and unit-rate | Eliminations        
Disaggregation of Revenue [Line Items]        
Revenue (20) 299 (344) (277)
Fixed-price and unit-rate | Shipyard        
Disaggregation of Revenue [Line Items]        
Revenue 36,962 42,015 114,777 115,558
Fixed-price and unit-rate | F&S        
Disaggregation of Revenue [Line Items]        
Revenue 10,464 21,993 55,874 66,806
T&M        
Disaggregation of Revenue [Line Items]        
Revenue 5,916 10,750 18,928 35,632
T&M | Shipyard        
Disaggregation of Revenue [Line Items]        
Revenue 116 1,308 1,748 5,229
T&M | F&S        
Disaggregation of Revenue [Line Items]        
Revenue 5,800 9,442 17,180 30,403
Other        
Disaggregation of Revenue [Line Items]        
Revenue 1,547 745 4,163 6,144
Other | Eliminations        
Disaggregation of Revenue [Line Items]        
Revenue (426) (501) (1,069) (573)
Other | F&S        
Disaggregation of Revenue [Line Items]        
Revenue $ 1,973 $ 1,246 $ 5,232 $ 6,717