v3.25.1
Commitments and Contingencies (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract]    
Accrued Insurance, Current $ 11,182 $ 11,158
Loss Contingencies [Line Items]    
Letters of Credit Outstanding, Amount 5,545  
Revenue, Remaining Performance Obligation, Amount 1,225,985  
Estimated cost of completion of bonded projects 139,032  
Estimated cost of completion of bonded projects 139,032  
Purchase Commitment, Remaining Minimum Amount Committed 0  
Insurance Related [Member]    
Loss Contingencies [Line Items]    
Letters of Credit Outstanding, Amount $ 5,545 $ 4,756