Registration of securities issued in business combination transactions

STOCKHOLDERS' EQUITY - Warrants (Details)

v3.21.2
STOCKHOLDERS' EQUITY - Warrants (Details)
 3 Months Ended 6 Months Ended 12 Months Ended
Feb. 24, 2020
$ / shares
shares
Mar. 28, 2021
USD ($)
shares
Jun. 30, 2021
USD ($)
D
$ / shares
shares
Dec. 31, 2020
USD ($)
D
$ / shares
shares
Mar. 29, 2021
$ / shares
shares
Dec. 09, 2020
$ / shares
Aug. 31, 2020
USD ($)
$ / shares
Jun. 30, 2020
shares
Dec. 31, 2019
USD ($)
$ / shares
May 31, 2017
$ / shares
shares
Class of Warrant or Right [Line Items]                    
Warrants to purchase shares | shares     0         99,960   2,442,440
Number of common stock purchased by each warrant | shares                   1
Revenue generated per share                   $ 35.00
Exercise price             $ 3.34     $ 3.34
Warrants and Rights Outstanding | $       $ 93,328,000            
Fair value of the warrants | $       $ 200,000     $ 1,700,000   $ 1,000,000.0  
Common stock par value (in dollars per share)     $ 0.0001 $ 0.0001   $ 0.0001 $ 0.0001   $ 0.0001  
Divisional Factor for Conversion of Debt to Warrants $ 1.00                  
Proceeds from Warrant Exercises | $     $ 170,665,000              
Class of Warrant or Right, Outstanding | shares       15,007,494            
Common Class A                    
Class of Warrant or Right [Line Items]                    
Common stock par value (in dollars per share)     $ 0.0001 $ 0.0001            
Trine Warrants                    
Class of Warrant or Right [Line Items]                    
Exercise price $ 11.50   11.50 11.50            
Warrant redemption price     0.01 0.01            
Share Price     $ 10.00 $ 10.00            
Warrant exercisable term     30 days 30 days            
Warrants and Rights Outstanding, Term     5 years 5 years            
Debt Instrument, Convertible, Threshold Trading Days | D     20 20            
Debt Instrument, Convertible, Threshold Consecutive Trading Days | D     30 30            
Debt Conversion, Converted Instrument, Warrants or Options Issued | shares 1,500,000                  
Proceeds from Warrant Exercises | $   $ 170,700,000                
Number of warrants exercised | shares   14,840,589                
Class of Warrant or Rights, Redeemed | shares         166,905          
Redemption Price Per Warrant         $ 0.01          
Trine Warrants | Common Class A                    
Class of Warrant or Right [Line Items]                    
Number of common stock purchased by each warrant | shares     1 1            
Common stock par value (in dollars per share)     $ 0.0001 $ 0.0001            
Trine Warrants | Warrants                    
Class of Warrant or Right [Line Items]                    
Number of common stock purchased by each warrant | shares     0.5 0.5            
Private Placement Warrants                    
Class of Warrant or Right [Line Items]                    
Warrants to purchase shares | shares     8,503,000 8,503,000            
Number of common stock purchased by each warrant | shares     1              
Exercise price     $ 11.50 $ 11.50            
Warrants and Rights Outstanding | $     $ 8,503,000 $ 8,503,000            
Fair value of the warrants | $     $ 56,600,000              
Warrant redemption price     $ 1.00 $ 1.00            
Number of shares issued during the period up on exercise of warrants not settle-able in cash. | shares     5,850,346              
Minimum                    
Class of Warrant or Right [Line Items]                    
Share Price       5.13            
Minimum | Trine Warrants | Common Class A                    
Class of Warrant or Right [Line Items]                    
Share Price     $ 18.00 $ 18.00