Convertible Preferred Stock	9 Months Ended
Sep. 30, 2020
Temporary Equity Disclosure [Abstract]
Convertible Preferred Stock	10. Convertible Preferred Stock Immediately prior to the IPO, the Company’s Articles of Association (the “Articles”), as further amended and restated (the “2018 Amended Articles”), authorized a total of 52,483,788 convertible preferred stocks with a par value of $0.0001 per share, of which 3,000,000 shares have been designated as Series Seed Preferred Stock, 14,886,305 shares have been designated as Series A Preferred Stock, 16,009,845 shares have been designated as Series B Preferred Stock, 3,059,695 shares have been designated as Series B-1 Preferred Stock and 15,527,943 shares have been designated as Series C Preferred Stock. The Series A, Series B, Series B-1 and Series C convertible preferred stocks will be collectively referred to as the Convertible Preferred Stock. In January 2020, the Company issued 1,182,265 shares of Series B Preferred Stock at $4.06 per share to complete the second closing of the Series B Preferred Stock issuance for total proceeds of $4.8 million. The issuance costs related to the second tranche was insignificant. In March 2020, the Company executed a Series C Preferred Stock Purchase Agreement (the “Series C SPA”) to issue 13,539,141 shares of Series C Preferred Stock at a purchase price of $6.5366 per share for a total consideration of $88.2 million, net of issuance costs of $0.3 million. In conjunction with the Series C SPA, the Company exchanged 1,988,802 shares of Series A Preferred Stock for an equal number of shares of Series C Preferred Stock related to a transaction amongst investors. This resulted in a total issuance of 15,527,943 shares of Series C Preferred Stock. The fair value of the shares of Series C Preferred Stock issued exceeded the carrying value of the shares of Series A Preferred Stock exchanged by $9.1 million, which was recognized as a deemed dividend through a reduction of $2.3 million to additional paid-in capital and an increase of $6.7 million to the accumulated deficit. The $9.1 million deemed dividend increased the net loss for the nine months ended September 30, 2020 to arrive at net loss attributable to common stockholders in the calculation of earnings per share. In connection with the Company’s August 21, 2020, IPO all issued and outstanding Convertible Preferred Stock of 50,439,595 were converted to 31,625,534 shares of the Company’s common stock and are no longer issued or outstanding as of September 30, 2020.

Convertible Preferred Stock

9 Months Ended

Sep. 30, 2020

Temporary Equity Disclosure [Abstract]

10. Convertible Preferred Stock

Immediately prior to the IPO, the Company’s Articles of Association (the “Articles”), as further amended and restated (the “2018 Amended Articles”), authorized a total of 52,483,788 convertible preferred stocks with a par value of $0.0001 per share, of which 3,000,000 shares have been designated as Series Seed Preferred Stock, 14,886,305 shares have been designated as Series A Preferred Stock, 16,009,845 shares have been designated as Series B Preferred Stock, 3,059,695 shares have been designated as Series B-1 Preferred Stock and 15,527,943 shares have been designated as Series C Preferred Stock. The Series A, Series B, Series B-1 and Series C convertible preferred stocks will be collectively referred to as the Convertible Preferred Stock.

In January 2020, the Company issued 1,182,265 shares of Series B Preferred Stock at $4.06 per share to complete the second closing of the Series B Preferred Stock issuance for total proceeds of $4.8 million. The issuance costs related to the second tranche was insignificant.

In March 2020, the Company executed a Series C Preferred Stock Purchase Agreement (the “Series C SPA”) to issue 13,539,141 shares of Series C Preferred Stock at a purchase price of $6.5366 per share for a total consideration of $88.2 million, net of issuance costs of $0.3 million. In conjunction with the Series C SPA, the Company exchanged 1,988,802 shares of Series A Preferred Stock for an equal number of shares of Series C Preferred Stock related to a transaction amongst investors. This resulted in a total issuance of 15,527,943 shares of Series C Preferred Stock. The fair value of the shares of Series C Preferred Stock issued exceeded the carrying value of the shares of Series A Preferred Stock exchanged by $9.1 million, which was recognized as a deemed dividend through a reduction of $2.3 million to additional paid-in capital and an increase of $6.7 million to the accumulated deficit. The $9.1 million deemed dividend increased the net loss for the nine months ended September 30, 2020 to arrive at net loss attributable to common stockholders in the calculation of earnings per share.

In connection with the Company’s August 21, 2020, IPO all issued and outstanding Convertible Preferred Stock of 50,439,595 were converted to 31,625,534 shares of the Company’s common stock and are no longer issued or outstanding as of September 30, 2020.