Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Initial Public Offering | Common Stock
Common stock issuance costs	$ 22,667
Follow-on Offering | Common Stock
Common stock issuance costs	$ 20,901
Series E Preferred Stock
Issuance of preferred stock value of issuance costs		$ 127