Annual report pursuant to Section 13 and 15(d)

Contracts Receivable Including Retainage, net - Schedule of Contracts Receivable (Details)

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Contracts Receivable Including Retainage, net - Schedule of Contracts Receivable (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
Contractors [Abstract]        
Contracts receivable $ 251,324 $ 221,566 $ 132,456  
Retainage 53,286 44,253 27,640  
Contracts receivable including retainage, gross 304,610 265,819 160,096  
Allowance for doubtful accounts (906) (612) (1,926) $ (1,440)
Contracts receivable including retainage, net $ 303,704 $ 265,207 $ 158,170