Quarterly report pursuant to Section 13 or 15(d)

Costs and Estimated Earnings on Uncompleted Contracts (Tables)

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Costs and Estimated Earnings on Uncompleted Contracts (Tables)
 9 Months Ended
Jun. 30, 2019
Revenue from Contract with Customer [Abstract]  
Costs and Estimated Earnings Compared to Billings on Uncompleted Contracts
Costs and estimated earnings compared to billings on uncompleted contracts at June 30, 2019 and September 30, 2018 consisted of the following (in thousands):
June 30, 2019 September 30, 2018
(unaudited)
Costs on uncompleted contracts $ 913,628  $ 743,322 
Estimated earnings to date on uncompleted contracts 123,914  95,155 
1,037,542  838,477 
Billings to date on uncompleted contracts (1,055,843) (867,881)
Net billings in excess of costs and estimated earnings on uncompleted contracts $ (18,301) $ (29,404)

Significant changes to balances of costs and estimated earnings in excess of billings (contract asset) and billings in excess of costs and estimated earnings (contract liability) on uncompleted contracts from September 30, 2018 to June 30, 2019 are presented below (in thousands):
Costs and Estimated Earnings in Excess of Billings on
Uncompleted Contracts		 Billings in Excess of Costs and Estimated Earnings on
Uncompleted Contracts		 Net Billings in Excess of Costs and Estimated Earnings on Uncompleted Contracts
September 30, 2018 $ 9,334  $ (38,738) $ (29,404)
Changes in revenue billed, contract price or cost estimates 4,709  6,394  11,103 
June 30, 2019 (unaudited) $ 14,043  $ (32,344) $ (18,301)