Convertible Preferred Stock and Preferred Stock Warrants (Tables)

12 Months Ended

Dec. 31, 2020

Temporary Equity Disclosure [Abstract]

Convertible preferred stock

As of December 31, 2019, preferred stock consisted of the following ($ in millions, except for share amounts):

	December 31, 2019
	Preferred Stock Authorized	Preferred Stock Issued and Outstanding	Carrying Value		Liquidation Preference		Common Stock Issuable Upon Conversion
Series Seed Preferred stock	7,905,140	7,905,140	$	12.9	$	13.0	7,905,140
Series A Preferred stock	3,328,774	3,328,774	14.0		13.6		3,328,774
Series B Preferred stock	4,511,417	4,511,417	34.1		34.1		4,511,417
Series C Preferred Stock	8,703,846	8,703,846	119.8		120.1		8,703,846
Series D Preferred Stock	7,107,930	7,107,930	299.4		300.0		7,107,930
	31,557,107	31,557,107	$	480.2	$	480.8	31,557,107