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Accounts Receivable (Tables)
3 Months Ended
Mar. 31, 2017
Receivables [Abstract]  
Schedule of Accounts Receivable, Net

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

 

     March 31, 2017      December 31, 2016  

Gross accounts receivable

   $ 1,670,754      $ 1,719,642  

Allowance for contractual adjustments and uncollectibles

     (1,183,069      (1,224,366
  

 

 

    

 

 

 
   $ 487,685      $ 495,276