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Significant Accounting Policies (Tables)
 9 Months Ended
Jun. 30, 2025
Accounting Policies [Abstract]  
Schedule of Cash and Cash Equivalents
The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Consolidated Statements of Cash Flows (unaudited, in thousands):

June 30, 2025September 30, 2024
Cash and cash equivalents$114,336 $74,686 
Restricted cash1,969 1,998 
Total cash, cash equivalents, and restricted cash$116,305 $76,684 
Schedule of Restricted Cash
The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Consolidated Statements of Cash Flows (unaudited, in thousands):

June 30, 2025September 30, 2024
Cash and cash equivalents$114,336 $74,686 
Restricted cash1,969 1,998 
Total cash, cash equivalents, and restricted cash$116,305 $76,684 
Schedule of Concentration Risk Customers that accounted for more than 10% of consolidated revenues during the three and nine months ended June 30, 2025 and 2024 are presented below:
% of Consolidated Revenues
For the Three Months Ended June 30,For the Nine Months Ended June 30,
2025202420252024
North Carolina Department of Transportation*12.5%*10.3%
Florida Department of Transportation*13.4%*13.9%
* Less than 10%
Schedule of Revenue by Major Customers The following table reflects, for the periods presented, (i) revenues generated from public infrastructure construction projects and the sale of construction materials to public customers and (ii) revenues generated from private infrastructure construction projects and the sale of construction materials to private customers.
% of Consolidated Revenues
For the Three Months Ended June 30,For the Nine Months Ended June 30,
2025202420252024
Private35.1 %35.6 %39.0 %39.2 %
Public64.9 %64.4 %61.0 %60.8 %