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Accounts Receivable (Tables)
6 Months Ended
Jun. 30, 2016
Receivables [Abstract]  
Schedule of Accounts Receivable, Net

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

 

     June 30, 2016      December 31, 2015  

Gross accounts receivable

   $ 1,608,423       $ 1,574,038   

Allowance for contractual adjustments and uncollectibles

     (1,147,263      (1,129,301
  

 

 

    

 

 

 
   $ 461,160       $ 444,737