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RECEIVABLES (Tables)
 6 Months Ended
Nov. 30, 2015
Summary of Accounts Receivable

A summary of accounts receivable as of November 30, 2015 and May 31, 2015 is as follows (in thousands):

 

     November 30, 2015      May 31, 2015  
     (unaudited)         

Trade accounts receivable

    $   219,030       $   197,322   

Unbilled revenues

      28,614         18,387   

Allowance for doubtful accounts

      (3,582 )       (2,775 ) 
  

 

 

     

 

 

  

Total

    $ 244,062       $ 212,934