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BUSINESS COMBINATIONS - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 03, 2020
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Business Acquisition [Line Items]        
Cash payments to acquire business, net of cash acquired   $ 6,807 $ 0  
Equity interests issued or issuable to previous investors $ 8,400      
Acquired developed technology        
Business Acquisition [Line Items]        
Developed technology useful life (in years)   9 years 8 months 12 days   9 years 10 months 24 days
Paradigm & Viomics        
Business Acquisition [Line Items]        
Business combination, consideration transferred 40,500      
Cash payments to acquire business, net of cash acquired 8,300      
Issuance of common stock to acquire business $ 32,200 $ 28,600    
Amount of shares held for future issuance   $ 3,600    
Equity interests issued or issuable to previous investors, vesting period   4 years    
Paradigm & Viomics | Acquired developed technology        
Business Acquisition [Line Items]        
Developed technology useful life (in years) 15 years