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

General - Additional Information (Detail)

v3.21.2
General - Additional Information (Detail) - USD ($)
 6 Months Ended 12 Months Ended
Apr. 05, 2021
Feb. 17, 2021
Jun. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Jan. 18, 2016
Stockholders' Equity, Reverse Stock Split   1-for-1.138974        
Share price   $ 10        
Business Combination, Acquisition Related Costs     $ 101,797,000      
Common stock shares no par value     $ 0 $ 0 $ 0 $ 0
Business Combination Agreement [Member]            
Sale of Stock, Price Per Share     $ 10      
Proceeds from issuance of common stock     $ 229,500,000      
Warrant [Member]            
Stock Issued During Period, Value, New Issues     3,027,747      
Warrant [Member] | Management [Member]            
Stock Issued During Period, Value, New Issues     3,500,000      
Warrant [Member] | Antara [Member]            
Stock Issued During Period, Value, New Issues     $ 3,784,753      
Common Stock [Member]            
Stock Issued During Period, Shares, New Issues 16,231,241          
Common Stock [Member] | Business Combination Agreement [Member]            
Stock Issued During Period, Shares, Acquisitions     1,250,000      
Direct And Incremental Costs [Member]            
Business Combination, Acquisition Related Costs     $ 103,627,000      
General and Administrative [Member]            
Business Combination, Acquisition Related Costs     $ 1,830,000      
Common Stock [Member]            
Conversion of Stock, Shares Converted     70,618,999      
Common stock shares no par value     $ 0      
Stock issued during period as noncash transaction     1      
Common Stock [Member] | Business Combination Agreement [Member]            
Stock Issued During Period, Shares, Acquisitions     2,175,000      
Common Stock [Member] | Management [Member]            
Stock Issued During Period, Value, New Issues     $ 2,500,000      
Common Stock [Member] | Antara [Member]            
Stock Issued During Period, Value, New Issues     $ 3,002,674      
Common Stock [Member] | Antara [Member] | Business Combination Agreement [Member]            
Stock Issued During Period, Shares, Acquisitions     312,296      
Series A Convertible Preferred Shares [Member]            
Conversion of Stock, Shares Converted     20,418,209      
Series B Convertible Preferred Shares [Member]            
Conversion of Stock, Shares Converted     15,906,053      
Series B-1 Convertible Preferred Shares [Member]            
Conversion of Stock, Shares Converted     3,032,940      
Series C Convertible Preferred Shares [Member]            
Conversion of Stock, Shares Converted     28,216,005      
Series C-1 Convertible Preferred Shares [Member]            
Stock Issued During Period, Shares, New Issues       346,678    
Conversion of Stock, Shares Converted     3,045,792      
Class B Common Shares Collective Growth [Member]            
Stock Issued During Period, Shares, New Issues     1,875,000