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Convertible Preferred Stock	12 Months Ended
Convertible Preferred Stock	Dec. 31, 2021
Equity [Abstract]
Convertible Preferred Stock	Convertible Preferred Stock In March 2020, the Company sold 42,905,042 shares of its Series C convertible preferred stock at a price of $11.49 per share for proceeds of $492.5 million, net of issuance costs of $0.5 million. In March 2020, the Company repurchased 546,806 shares of its Series A convertible preferred stock from a related party for a purchase price of $4.2 million. Upon the closing of the IPO, 194,474,431 shares of convertible preferred stock then outstanding converted into an equal number of shares of common stock. As of December 31, 2021, no shares of convertible preferred stock were outstanding.