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SEGMENT INFORMATION (Details)
$ in Thousands
 3 Months Ended
Oct. 31, 2020
USD ($)
segment
Oct. 31, 2019
USD ($)
Jul. 31, 2020
USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]      
Number of reportable segments | segment 1    
Total revenue $ 312,754 $ 314,768  
U.S.      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Total revenue 177,113 184,767  
Long-lived assets 124,900   $ 136,700
Asia Pacific      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Total revenue 62,598 60,321  
Europe, the Middle East and Africa      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Total revenue 59,906 56,713  
Other Americas      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Total revenue $ 13,137 $ 12,967