Warrant Options	6 Months Ended
Jun. 30, 2020
Warrants And Rights Note Disclosure [Abstract]
Warrant Options	11. WARRANT OPTIONS In October 2018, in connection with the issuance of the Redeemable Series A-1 Preferred Stock, the Company issued a detachable warrant to acquire 534,240 shares of common stock at a price of $0.01 per share at any given time during a period of ten years beginning on the instrument’s issuance date. The fair value of this warrant was determined to be $16.9 million as of June 30, 2020 and December 31, 2019. The warrant option will be fair valued at each reporting period until exercised. Fair value adjustments recorded in other income (expense) on the condensed consolidated statements were not material for the three and six months ended June 30, 2020, respectively and $1.5 million for the three and six months ended June 30, 2019, respectively. The warrant was exercised in full for cash on July 30, 2020 (Note 23). In April 2020, in connection with the issuance of the Convertible and Redeemable Series A-2 Preferred Stock, the Company issued a detachable warrant to acquire 1,351,960 shares of common stock at a price of $0.01 per share at any time following the occurrence of a qualifying IPO, a sale of the Company, or a redemption in full of the Series A-1 preferred stock (each, an “Adjustment Event”), with an expiration date of ten years from the instrument’s issuance date. The number of shares underlying the warrant and issuable upon exercise was subject to adjustment based upon the price per share of common stock upon the occurrence of an Adjustment Event (Note 17) to reflect an aggregate value of $30.0 million. The fair value of this warrant was determined to be $30.1 million as of June 30, 2020. The warrant option will be fair valued at each reporting period until exercised. Fair value adjustments recorded in other income (expense) on the condensed consolidated statements were not material for the three months ended June 30, 2020. The warrant was exercised in full for cash on July 30, 2020 (Note 23).

Warrant Options

6 Months Ended

Jun. 30, 2020

Warrants And Rights Note Disclosure [Abstract]

11. WARRANT OPTIONS

In October 2018, in connection with the issuance of the Redeemable Series A-1 Preferred Stock, the Company issued a detachable warrant to acquire 534,240 shares of common stock at a price of $0.01 per share at any given time during a period of ten years beginning on the instrument’s issuance date. The fair value of this warrant was determined to be $16.9 million as of June 30, 2020 and December 31, 2019. The warrant option will be fair valued at each reporting period until exercised. Fair value adjustments recorded in other income (expense) on the condensed consolidated statements were not material for the three and six months ended June 30, 2020, respectively and $1.5 million for the three and six months ended June 30, 2019, respectively. The warrant was exercised in full for cash on July 30, 2020 (Note 23).

In April 2020, in connection with the issuance of the Convertible and Redeemable Series A-2 Preferred Stock, the Company issued a detachable warrant to acquire 1,351,960 shares of common stock at a price of $0.01 per share at any time following the occurrence of a qualifying IPO, a sale of the Company, or a redemption in full of the Series A-1 preferred stock (each, an “Adjustment Event”), with an expiration date of ten years from the instrument’s issuance date. The number of shares underlying the warrant and issuable upon exercise was subject to adjustment based upon the price per share of common stock upon the occurrence of an Adjustment Event (Note 17) to reflect an aggregate value of $30.0 million. The fair value of this warrant was determined to be $30.1 million as of June 30, 2020. The warrant option will be fair valued at each reporting period until exercised. Fair value adjustments recorded in other income (expense) on the condensed consolidated statements were not material for the three months ended June 30, 2020. The warrant was exercised in full for cash on July 30, 2020 (Note 23).