Convertible Preferred Stock - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	2 Months Ended	12 Months Ended		16 Months Ended
	Dec. 02, 2020	Oct. 31, 2020	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Oct. 22, 2020	Jun. 24, 2019
Temporary Equity [Line Items]
Beneficial conversion feature						$ 12,000
Series A Convertible Preferred Stock
Temporary Equity [Line Items]
Shares authorized (in shares)							102,740,023
Par value (in dollars per share)							$ 0.00001
Preferred stock issued (in shares)					21,614,220
Gross proceeds from stock issuance					$ 67,073
Merger recapitalization (in shares)				94,818,151
Series X Convertible Preferred Stock
Temporary Equity [Line Items]
Shares authorized (in shares)		20,077,073
Par value (in dollars per share)		$ 0.00001
Preferred stock issued (in shares)		1,391,694	17,065,536	18,457,230
Purchase price (in dollars per share)			$ 9.96
Gross proceeds from stock issuance		$ 13,860	$ 170,000	$ 178,074
Merger recapitalization (in shares)				18,457,230
Series A And Series X Convertible Preferred Stock
Temporary Equity [Line Items]
Merger recapitalization (in shares)	113,275,381