Quarterly report [Sections 13 or 15(d)]

Related Parties - Schedule of Related Party Transactions (Details)

v3.25.1
Related Parties - Schedule of Related Party Transactions (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2025
Mar. 31, 2024
Sep. 30, 2024
Related Party Transaction [Line Items]          
Revenues $ 571,650 $ 371,427 $ 1,133,230 $ 767,932  
Subcontracting Services (500,300) (332,626) (985,309) (677,251)  
Expense incurred (46,662) (35,981) (90,928) (71,435)  
Acquisition related costs 806 771 20,358 1,298  
Related Party          
Related Party Transaction [Line Items]          
Expense incurred (500)   (1,200)    
Acquisition related costs     800    
Related Party | Purchaser of Subsidiary          
Related Party Transaction [Line Items]          
Revenues 0 0 0 0  
Accounts receivable 207   207   $ 207
Related Party | Disposed Entity          
Related Party Transaction [Line Items]          
Revenues 0 0 0 0  
Accounts receivable 132   132   132
Related Party | Land Development Project          
Related Party Transaction [Line Items]          
Revenues 0 0 0 0  
Accounts receivable 548   548   548
Related Party | Subcontracting Services          
Related Party Transaction [Line Items]          
Subcontracting Services (1,193) (705) (3,118) (2,618)  
Accounts payable (297)   (297)   (239)
Related Party | Island Pond          
Related Party Transaction [Line Items]          
Expense incurred (100) (100) (200) (200)  
Accounts payable 0   0   0
Related Party | SunTx          
Related Party Transaction [Line Items]          
Expense incurred (447) $ (451) (1,838) $ (882)  
Accounts payable $ 0   $ 0   $ 0