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Organization and Nature of Business - Additional Information (Details)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 23, 2020
USD ($)
shares
Jun. 12, 2020
Jun. 30, 2020
shares
Jun. 30, 2020
USD ($)
shares
Organization and Nature of Business [Line Items]        
Entity incorporation, date of incorporation       Sep. 06, 2016
Reverse stock split of share capital       1-for-6.062
Conversion ratio   0.16496    
Net proceeds from IPO | $       $ 233,760
Common Shares        
Organization and Nature of Business [Line Items]        
Gross proceeds from IPO | $ $ 253,000      
Net proceeds from IPO | $ $ 232,043      
Convertible preferred shares converted into common shares 21,558,393     21,558,393
Shares issued upon exercise of warrants outstanding 750,000      
Common Shares | Initial Public Offering        
Organization and Nature of Business [Line Items]        
Shares issued 12,650,000   12,650,000  
Common Shares | Exercise of Underwriters Option        
Organization and Nature of Business [Line Items]        
Shares issued 1,650,000