Quarterly report pursuant to Section 13 or 15(d)

Contracts Receivable Including Retainage, Net (Details)

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Contracts Receivable Including Retainage, Net (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Sep. 30, 2018
Contractors [Abstract]    
Contracts receivable $ 117,046 $ 104,541
Retainage 19,182 16,848
Contracts receivable including retainage, gross 136,228 121,389
Allowance for doubtful accounts (1,519) (1,098)
Contracts receivable including retainage, net $ 134,709 $ 120,291