Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) (Parenthetical) - USD ($) $ in Thousands	11 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2019
Stock issuance costs		$ 3,083
Convertible Preferred Shares
Temporary equity, issuance costs	$ 235	0
Temporary equity, partial settlement of convertible preferred stock liability	$ 692
Temporary equity, settlement of convertible preferred stock liability		$ 6,673