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Convertible Preferred Stock and Stockholders Equity - Summary of Common Stock Reserved for Future Issuance (Parenthetical) (Details) - Public Warrants
3 Months Ended
Mar. 31, 2020
Warrant
shares
Class of Stock [Line Items]  
Number of warrants entitle holder to purchase one share | Warrant 4
Common Stock  
Class of Stock [Line Items]  
Number of shares issued for each warrant | shares 0.25