Quarterly report pursuant to Section 13 or 15(d)

Contracts in Progress (Details)

v3.19.3
Contracts in Progress (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2019
Dec. 31, 2018
Contracts in Progress    
Revenue earned on uncompleted contracts $ 809,414 $ 731,923
Less: Billings to date (808,191) (750,068)
Net underbilling (overbilling) 1,223 (18,145)
Costs and estimated earnings in excess of billing on uncompleted contracts 45,974 32,698
Billings in excess of costs and estimated earnings on uncompleted contracts (44,751) (50,843)
Net underbilling (overbilling) $ 1,223 $ (18,145)