Registration of securities issued in business combination transactions

ACQUISITIONS - Business Combination common shares issued (Details)

v3.21.2
ACQUISITIONS - Business Combination common shares issued (Details)
12 Months Ended
Dec. 09, 2020
D
$ / shares
shares
Dec. 31, 2020
shares
Business Acquisition [Line Items]    
Number of trading days | D 20  
Number of days window by fifth anniversary of business combination | D 30  
Tranche One    
Business Acquisition [Line Items]    
Trine Founder Shares 5,552,812  
Vesting percentage 75.00%  
Tranche Two    
Business Acquisition [Line Items]    
Trine Founder Shares 1,850,938  
Vesting percentage 25.00%  
Trine    
Business Acquisition [Line Items]    
BALANCE (in shares) 30,015,000  
Less: redemption of Trine shares (26,049)  
Common stock of Trine 29,988,951  
Trine Founder Shares 5,552,812 7,403,750
Trine Director Shares 100,000  
Shares issued in PIPE 27,497,500  
Business Combination and PIPE financing shares 63,139,263  
Legacy Desktop Metal shares (1) 161,487,334  
BALANCE (in shares) 224,626,597  
Share price | $ / shares $ 12.50