v3.25.4
Related Parties - Related Party Transactions (Details) - USD ($)
$ in Thousands
3 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Sep. 30, 2025
Related Party Transaction [Line Items]      
Revenues $ 809,469 $ 561,580  
Subcontracting Services (687,969) (485,009)  
General and administrative expenses (61,501) (44,266)  
Acquisition related costs 11,629 19,552  
Related Party | Purchaser of Subsidiary      
Related Party Transaction [Line Items]      
Revenues 0 0  
Accounts receivable 104   $ 104
Related Party | Disposed Entity      
Related Party Transaction [Line Items]      
Revenues 0 0  
Accounts receivable 66   66
Related Party | Land Development Project      
Related Party Transaction [Line Items]      
Revenues 0 0  
Accounts receivable 0   548
Related Party | Subcontracting Services      
Related Party Transaction [Line Items]      
Subcontracting Services (1,551) (1,925)  
Accounts payable (218)   (951)
Related Party | Island Pond      
Related Party Transaction [Line Items]      
General and administrative expenses (100) (100)  
Accounts payable 0   0
Related Party | SunTx      
Related Party Transaction [Line Items]      
General and administrative expenses (1,406) $ (1,391)  
Accounts payable $ 0   $ 0