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BUSINESS COMBINATIONS - Minjar Acquisition (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 16, 2018
Sep. 06, 2016
Jul. 31, 2018
Minjar, Inc.      
Business Acquisition [Line Items]      
Consideration transferred $ 19,300    
Cash payment to acquire business 18,800    
Liabilities incurred 500    
Contingent consideration, liability 4,400    
Goodwill acquired     $ 18,002
Intangible assets $ 7,000    
Estimated Life (in years) 5 years    
Deferred tax liabilities noncurrent $ (5,700)    
Acquisition related costs     $ 600
Developed technology      
Business Acquisition [Line Items]      
Estimated Life (in years)   5 years  
Developed technology | Minjar, Inc.      
Business Acquisition [Line Items]      
Intangible assets 5,600    
Customer relationships | Minjar, Inc.      
Business Acquisition [Line Items]      
Intangible assets $ 1,400