Registration of securities issued in business combination transactions

SUBSEQUENT EVENTS (Details)

v3.21.2
SUBSEQUENT EVENTS (Details) - USD ($)
$ in Thousands
 2 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Feb. 26, 2021
Feb. 16, 2021
Mar. 10, 2021
Jun. 30, 2021
Jun. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Mar. 31, 2021
Subsequent Event [Line Items]                
Issuance of Common Stock for acquisitions       $ 49,142 $ 208,989 $ 500 $ 3,563  
Net proceeds from warrant exercises         $ 170,665      
Shares issued on exercise of warrants         447,938      
Common Stock warrants outstanding           15,007,494    
Restricted Stock Units                
Subsequent Event [Line Items]                
Issuance of additional shares (in shares)         4,461,000 683,000    
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 | Warrants                
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 | Restricted Stock Units                
Subsequent Event [Line Items]                
Issuance of additional shares (in shares)   475,848