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Organization and description of business operations - Securities Purchase Agreement (Details) - USD ($)
$ / shares in Units, $ in Millions
May 22, 2020
May 18, 2020
Jun. 30, 2022
Jun. 02, 2020
Bridge warrants        
Securities Purchase Agreement        
Warrant exercise price $ 0.31      
Series A Warrants        
Securities Purchase Agreement        
Warrants to purchase shares     16,701,824  
Warrants exercise price (in dollars per share)     $ 1.16  
Securities Purchase Agreement        
Securities Purchase Agreement        
Number of shares issued upon conversion   4,137,509    
Securities Purchase Agreement | Bridge warrants        
Securities Purchase Agreement        
Warrants to purchase shares 413,751      
Warrants exercise price (in dollars per share) $ 2.2362      
Securities Purchase Agreement | Series A Warrants        
Securities Purchase Agreement        
Percentage of right to acquire shares   75.00%    
Warrants to purchase shares       8,384,764
Securities Purchase Agreement | Series B Warrants        
Securities Purchase Agreement        
Warrants to purchase shares       7,042,175
Securities Purchase Agreement | Timber Sub        
Securities Purchase Agreement        
Cash proceeds from issuance of common units   $ 20.0    
Private Placement | Securities Purchase Agreement        
Securities Purchase Agreement        
Aggregate purchase price   25.0    
Private Placement | Securities Purchase Agreement | Bridge Loan        
Securities Purchase Agreement        
Aggregate purchase price   $ 5.0