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REVENUE, DEFERRED REVENUE AND DEFERRED COMMISSIONS - Deferred Commissions (Details)
$ in Thousands
3 Months Ended
Oct. 31, 2017
USD ($)
Movement in Deferred Revenue [Roll Forward]  
As of July 31, 2017 As Adjusted $ 73,527
Additions 33,807
Commissions Recognized (25,350)
As of October 31, 2017 $ 81,984
Percent expected to be recognized in next year 32.00%