Consolidated Statements of Stockholders' Equity (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Underwriting discounts, offering costs and issuance costs	$ 17,003
Series B Convertible Preferred Stock
Underwriting discounts, offering costs and issuance costs	0	$ 17
Series B-1 Preferred Stock
Underwriting discounts, offering costs and issuance costs		$ 49
Series C Preferred Stock
Underwriting discounts, offering costs and issuance costs	$ 320