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Accounts Receivable
9 Months Ended
Sep. 30, 2011
Accounts Receivable [Abstract] 
Accounts Receivable
4. Accounts Receivable:

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

 

     September 30, 2011     December 31, 2010  

Gross accounts receivable

   $ 721,147      $ 603,372   

Allowance for contractual adjustments and uncollectibles

     (514,087     (421,977
  

 

 

   

 

 

 
   $ 207,060      $ 181,395