Stockholders' Deficit Schedule of Activity of Company's Common Stock (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Sep. 30, 2020	Dec. 31, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred stock, shares authorized	7,000,000
Preferred stock, shares outstanding	0	(71,282)
Common stock, shares authorized	162,500,000	162,500,000
Common stock, shares, issued	72,530,770	65,061,090
Common stock, shares, outstanding	(72,517,539)	(62,731,184)
Treasury stock (shares)	13,231	2,329,906
Preferred Stock, Shares, Retired	$ (71,282)
Conversion of Stock, Shares Converted	71,282
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Convertible Preferred Stock, Shares Issued upon Conversion				(8,910,234)
Stock issued during period, shares, new issues	(7,413,322)
Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Convertible Preferred Stock, Shares Issued upon Conversion				(1,496,912)
D Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred stock, shares authorized	200,000	200,000	200,000		200,000
Preferred stock, shares issued	0	71,282	71,282		71,282
Preferred stock, shares outstanding	0	(71,282)	(71,282)		(71,282)
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock, shares authorized	162,500,000	162,500,000	162,500,000		162,500,000
Common stock, shares, issued	72,530,770	65,061,090	58,823,567		58,823,567
Common stock, shares, outstanding	(72,517,539)	(62,731,184)	(55,616,449)		(54,238,344)
Stock issued during period, shares, share-based compensation, net of forfeitures	(876,121)	(877,212)	(1,378,105)
Stock issued during period, shares, new issues	(56,358)	(6,237,523)
Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock (shares)	13,231	2,329,906	3,207,118		4,585,223
Stock issued during period, shares, share-based compensation, net of forfeitures	(819,763)	(877,212)	(1,378,105)