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Accounts Receivable (Tables)
6 Months Ended
Jun. 30, 2015
Receivables [Abstract]  
Schedule of Accounts Receivable, Net

Accounts receivable, net consists of the following (in thousands):

 

     June 30, 2015      December 31, 2014  

Gross accounts receivable

   $ 1,296,837       $ 1,200,958   

Allowance for contractual adjustments and uncollectibles

     (916,292      (848,767
  

 

 

    

 

 

 
   $ 380,545       $ 352,191