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Accounts Receivable (Tables)
9 Months Ended
Sep. 30, 2013
Receivables [Abstract]  
Schedule of Accounts Receivable, Net
     September 30, 2013     December 31, 2012  

Gross accounts receivable

   $ 946,892      $ 872,962   

Allowance for contractual adjustments and uncollectibles

     (674,078     (624,896
  

 

 

   

 

 

 
   $ 272,814      $ 248,066