Post-effective amendment to a registration statement that is not immediately effective upon filing

STOCKHOLDERS' EQUITY - Legacy Desktop Metal Convertible Preferred Stock (Details)

v3.21.1
STOCKHOLDERS' EQUITY - Legacy Desktop Metal Convertible Preferred Stock (Details)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2020
USD ($)
director
$ / shares
shares
Mar. 31, 2020
$ / shares
Class of Warrant or Right [Line Items]    
Convertible Preferred Stock, Authorized | shares 100,038,109  
Convertible Preferred Stock, Issued | shares 100,038,109  
Convertible Preferred Stock, Outstanding | shares 100,038,109  
Preferred stock authorized $ 436,533  
Preferred stock issued 436,533  
Preferred stock outstanding $ 436,533  
Dividend rate (as a percent) 8.00%  
Dividends declared $ 0  
Proceeds from Issuance Initial Public Offering $ 50,000  
Share price | $ / shares   $ 3.34
Series A Legacy Preferred Stock    
Class of Warrant or Right [Line Items]    
Par value (in dollars per share) | $ / shares $ 0.0001  
Convertible Preferred Stock, Authorized | shares 26,189,545  
Convertible Preferred Stock, Issued | shares 26,189,545  
Convertible Preferred Stock, Outstanding | shares 26,189,545  
Preferred stock authorized $ 13,878  
Preferred stock issued 13,878  
Preferred stock outstanding $ 13,878  
Number of directors entitled to elect | director 1  
Preferred stock liquidation preference Per Share | $ / shares $ 0.53372  
Preferred Stock Convertible conversion price | $ / shares 0.53372  
Series B Legacy Preferred Stock    
Class of Warrant or Right [Line Items]    
Par value (in dollars per share) | $ / shares $ 0.0001  
Convertible Preferred Stock, Authorized | shares 23,675,035  
Convertible Preferred Stock, Issued | shares 23,675,035  
Convertible Preferred Stock, Outstanding | shares 23,675,035  
Preferred stock authorized $ 37,806  
Preferred stock issued 37,806  
Preferred stock outstanding $ 37,806  
Number of directors entitled to elect | director 2  
Preferred stock liquidation preference Per Share | $ / shares $ 1.6013  
Preferred Stock Convertible conversion price | $ / shares 1.6013  
Series C Legacy Preferred Stock    
Class of Warrant or Right [Line Items]    
Par value (in dollars per share) | $ / shares $ 0.0001  
Convertible Preferred Stock, Authorized | shares 13,152,896  
Convertible Preferred Stock, Issued | shares 13,152,896  
Convertible Preferred Stock, Outstanding | shares 13,152,896  
Preferred stock authorized $ 44,852  
Preferred stock issued 44,852  
Preferred stock outstanding $ 44,852  
Number of directors entitled to elect | director 1  
Preferred stock liquidation preference Per Share | $ / shares $ 3.4213  
Preferred Stock Convertible conversion price | $ / shares 3.4213  
Series D Legacy Preferred Stock    
Class of Warrant or Right [Line Items]    
Par value (in dollars per share) | $ / shares $ 0.0001  
Convertible Preferred Stock, Authorized | shares 21,075,193  
Convertible Preferred Stock, Issued | shares 21,075,193  
Convertible Preferred Stock, Outstanding | shares 21,075,193  
Preferred stock authorized $ 180,353  
Preferred stock issued 180,353  
Preferred stock outstanding $ 180,353  
Preferred stock liquidation preference Per Share | $ / shares $ 8.5656  
Preferred Stock Convertible conversion price | $ / shares 8.5656  
Series E Legacy Preferred Stock    
Class of Warrant or Right [Line Items]    
Par value (in dollars per share) | $ / shares $ 0.0001  
Convertible Preferred Stock, Authorized | shares 13,450,703  
Convertible Preferred Stock, Issued | shares 13,450,703  
Convertible Preferred Stock, Outstanding | shares 13,450,703  
Preferred stock authorized $ 134,667  
Preferred stock issued 134,667  
Preferred stock outstanding $ 134,667  
Number of directors entitled to elect | director 1  
Series E-1 Legacy Preferred Stock    
Class of Warrant or Right [Line Items]    
Par value (in dollars per share) | $ / shares $ 0.0001  
Convertible Preferred Stock, Authorized | shares 2,494,737  
Convertible Preferred Stock, Issued | shares 2,494,737  
Convertible Preferred Stock, Outstanding | shares 2,494,737  
Preferred stock authorized $ 24,977  
Preferred stock issued 24,977  
Preferred stock outstanding $ 24,677  
Preferred stock liquidation preference Per Share | $ / shares $ 10.0211  
Preferred Stock Convertible conversion price | $ / shares 10.0211  
Minimum    
Class of Warrant or Right [Line Items]    
Share price | $ / shares $ 5.13