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Contract Assets and Liabilities (Tables) | 6 Months Ended
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Mar. 31, 2020
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 March 31, 2020 and September 30, 2019 consisted of the following (in thousands):
| March 31, 2020 |  | September 30, 2019
| (unaudited) |  |
Costs on uncompleted contracts | $ | 905,840 |  |  | $ | 900,880 |
Estimated earnings to date on uncompleted contracts | 114,593 |  |  | 123,256 |
| 1,020,433 |  |  | 1,024,136 |
Billings to date on uncompleted contracts | (1,033,872) |  |  | (1,043,221) |
Net billings in excess of costs and estimated earnings on uncompleted contracts | $ | (13,439) |  |  | $ | (19,085) |
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, 2019 to March 31, 2020 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, 2019 | $ | 12,030 |  |  | $ | (31,115) |  |  | $ | (19,085) |
Changes in revenue billed, contract price or cost estimates | 4,071 |  |  | 1,575 |  |  | 5,646 |
March 31, 2020 (unaudited) | $ | 16,101 |  |  | $ | (29,540) |  |  | $ | (13,439) |

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- Definition Tabular disclosure for billings on uncompleted contracts in excess of costs and costs of uncompleted contracts in excess of billings. + References No definition available. + Details
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