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REVENUE, DEFERRED REVENUE AND DEFERRED COMMISSIONS - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Jan. 31, 2020
Jan. 31, 2019
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]        
Total revenue $ 346,767 $ 335,360 $ 661,535 $ 648,643
Revenue recognized, amount deferred in prior period 119,300 85,700 207,500 151,600
Subscription        
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]        
Total revenue 266,544 157,356 484,440 284,332
Subscription and Circulation, Software        
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]        
Total revenue 142,700 65,600 245,700 109,500
Subscription and Circulation, Software Entitlement and Support Subscription [Member]        
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]        
Total revenue $ 123,800 $ 91,800 $ 238,700 $ 174,800
Minimum        
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]        
Software, license term     1 year  
Maximum        
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]        
Software, license term     5 years