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Business Combination (Details) - USD ($)
$ in Thousands
Oct. 09, 2018
Dec. 31, 2018
Oct. 30, 2018
Mar. 31, 2018
Business Acquisition [Line Items]        
Goodwill   $ 15,334   $ 11,828
CoScale NV        
Business Acquisition [Line Items]        
Aggregate purchase price $ 6,300      
Indemnity holdback 900      
Goodwill 3,400      
Transaction costs     $ 300  
Technology-Based Intangible Assets | CoScale NV        
Business Acquisition [Line Items]        
Purchase consideration paid in cash $ 2,900      
Estimated useful life 3 years