Quarterly report pursuant to Section 13 or 15(d)

Contract Assets and Liabilities - Schedule of Cost and Estimated Earnings Compared to Billings on Uncompleted Contracts (Details)

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Contract Assets and Liabilities - Schedule of Cost and Estimated Earnings Compared to Billings on Uncompleted Contracts (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Sep. 30, 2023
Jun. 30, 2023
Sep. 30, 2022
Revenue from Contract with Customer [Abstract]        
Costs on uncompleted contracts $ 1,922,709 $ 1,831,106    
Estimated earnings to date on uncompleted contracts 221,123 194,760    
Costs and estimated earnings to date on uncompleted contracts 2,143,832 2,025,866    
Billings to date on uncompleted contracts (2,224,477) (2,077,475)    
Net billings in excess of costs and estimated earnings on uncompleted contracts $ (80,645) $ (51,609) $ (35,299) $ (23,206)