Annual report pursuant to Section 13 and 15(d)

SUBSEQUENT EVENTS (Details)

v3.21.1
SUBSEQUENT EVENTS (Details) - USD ($)
$ in Thousands
 2 Months Ended 12 Months Ended
Feb. 26, 2021
Feb. 16, 2021
Mar. 10, 2021
Dec. 31, 2020
Dec. 31, 2019
Mar. 31, 2021
Subsequent Event [Line Items]            
Issuance of common stock for acquisitions       $ 500 $ 3,563  
Common Stock warrants outstanding       15,007,494    
RSU            
Subsequent Event [Line Items]            
Issuance of additional shares (in shares)       683,000    
Subsequent Event            
Subsequent Event [Line Items]            
Shares issued on exercise of warrants 11,898,122          
Common Stock warrants outstanding           0
Subsequent Event | Private Placement Warrants            
Subsequent Event [Line Items]            
Shares issued on exercise of warrants     5,850,346      
Warrants exercised on a cashless basis     10,003,000      
Subsequent Event | Warrant            
Subsequent Event [Line Items]            
Warrants exercised for cash 11,898,122          
Net proceeds from warrant exercises $ 136,800          
EnvisionTEC US, LLC And Affiliates | Subsequent Event            
Subsequent Event [Line Items]            
Payment to acquire business   $ 143,800        
Issuance of common stock for acquisitions (in shares)   5,036,142        
Issuance of common stock for acquisitions   $ 159,800        
EnvisionTEC US, LLC And Affiliates | Subsequent Event | RSU            
Subsequent Event [Line Items]            
Issuance of additional shares (in shares)   475,848