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Accounts Receivable, Net
12 Months Ended
Sep. 30, 2018
Text Block [Abstract]  
Accounts Receivable, Net

Note 7 — Accounts Receivable, Net

Accounts receivable, net consists of the following:

 

     As of September 30,  
     2018      2017  

Accounts receivable — billed

   $ 728,716      $ 664,099  

Accounts receivable — unbilled

     263,997        229,695  

Less — allowances

     (21,211      (28,726
  

 

 

    

 

 

 

Accounts receivable, net

   $ 971,502      $ 865,068