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RECEIVABLES (Tables)
 3 Months Ended
Aug. 31, 2014
Summary of Accounts Receivable

A summary of accounts receivable as of August 31, 2014 and May 31, 2014 is as follows (in thousands):

 

     August 31, 2014     May 31, 2014  
     (unaudited)        

Trade accounts receivable

    $ 156,845      $ 165,484   

Unbilled revenues

      21,258        14,901   

Allowance for doubtful accounts

      (4,854 )      (4,784 ) 
  

 

 

    

 

 

  

Total

    $ 173,249      $ 175,601