Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Share - Additional Information (Details)

v3.20.2
Net Loss Per Share - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 12, 2017
Class Of Stock [Line Items]          
Weighted-average number of outstanding shares of common stock excluded from calculation of diluted net loss per share 16,881,691 0 17,377,360 0  
Warrants          
Class Of Stock [Line Items]          
Business combination, share price $ 11.50   $ 11.50   $ 11.50
Warrant agreement date     Dec. 12, 2017    
Number of fractional shares issued upon exercise of warrants     0    
Period after business combination when warrants become exercisable     30 days    
Warrants exercisable expiration period after completion of business combination     5 years    
Net cash settlement value of warrants     $ 0    
Redemption price per warrant 0.01   $ 0.01    
Minimum period of prior written notice of redemption of warrants     30 days    
Minimum price per share required for redemption of warrants $ 18.00   $ 18.00    
Warrants redemption covenant, threshold trading days     20 days    
Warrants redemption covenant, threshold consecutive trading days     30 days    
Warrants or rights outstanding 11,154,938   11,154,938