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Convertible Preferred Shares - Additional Information (Details)
 1 Months Ended 12 Months Ended
Jun. 23, 2020
shares
Jun. 30, 2020
shares
Sep. 30, 2019
USD ($)
$ / shares
shares
Aug. 31, 2019
Jan. 31, 2019
USD ($)
$ / shares
shares
Jun. 30, 2017
USD ($)
Tranche
$ / shares
shares
Dec. 31, 2020
USD ($)
$ / shares
shares
Temporary Equity [Line Items]              
Conversion of convertible preferred shares into an equivalent number of common shares, Value             $ 135,997,000
Preferred shares, noncumulative dividends             8.00%
Preferred stock, conversion basis             The preferred shares were convertible into common shares on a one-to-one basis.
Common Shares              
Temporary Equity [Line Items]              
Conversion of convertible preferred shares into an equivalent number of common shares, Value             $ 135,997,000
Conversion of convertible preferred shares into an equivalent number of common shares, Shares | shares             21,558,393
Convertible preferred shares converted into common shares | shares 21,558,393 21,558,393         21,558,393
Threshold price per share in initial public offering that triggers automatic conversion of preferred convertible shares into common shares | $ / shares             $ 15.76
Threshold gross proceeds of initial public offering that triggers automatic conversion of preferred convertible shares into common shares             $ 50,000,000
Minimum              
Temporary Equity [Line Items]              
Percentage of liquidation rights waived by holder of preferred shares             70.00%
Minimum | Common Shares              
Temporary Equity [Line Items]              
Percentage of holder of preferred shares election to convert the preferred shares             70.00%
Series A Preferred Shares              
Temporary Equity [Line Items]              
Temporary equity shares authorized           unlimited  
Number of tranches | Tranche           3  
Beneficial conversion feature             $ 0
Series A Preferred Shares | First Tranche              
Temporary Equity [Line Items]              
Temporary equity par value | $ / shares           $ 4.91  
Issuance of convertible preferred shares, net of issuance costs, Shares | shares           5,906,049  
Proceeds from Issuance of convertible preferred stock           $ 29,000,000  
Stock issuance costs           40,000  
Conversion of convertible preferred shares into an equivalent number of common shares, Value           $ 4,500,000  
Conversion of convertible preferred shares into an equivalent number of common shares, Shares | shares           907,291,000  
Series A Preferred Shares | Second Tranche              
Temporary Equity [Line Items]              
Temporary equity par value | $ / shares         $ 4.91    
Issuance of convertible preferred shares, net of issuance costs, Shares | shares         4,276,795    
Proceeds from Issuance of convertible preferred stock         $ 21,000,000    
Series A Preferred Shares | Maximum              
Temporary Equity [Line Items]              
Issuance of convertible preferred shares, net of issuance costs, Shares | shares           13,237,696  
Series A Preferred Shares | Maximum | First Tranche              
Temporary Equity [Line Items]              
Issuance of convertible preferred shares, net of issuance costs, Shares | shares           7,331,647  
Series B Preferred Shares              
Temporary Equity [Line Items]              
Temporary equity shares authorized       unlimited      
Temporary equity par value | $ / shares     $ 7.88        
Issuance of convertible preferred shares, net of issuance costs, Shares | shares     10,468,258        
Proceeds from Issuance of convertible preferred stock     $ 82,500,000        
Beneficial conversion feature             $ 0