Condensed Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) (Unaudited) - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Series A Redeemable Convertible Preferred Stock	Series B Redeemable Convertible Preferred Stock	Series X Redeemable Convertible Preferred Stock	Common Stock	Treasury Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment
Balance at Dec. 31, 2020	$ (531,400)					$ 1	$ (256)	$ 32,418	$ (563,563)
Temporary Equity, Balance (in Shares) at Dec. 31, 2020			29,484,740	41,205,482	11,953,274
Temporary Equity, Balance at Dec. 31, 2020			$ 184,247	$ 290,866	$ 75,000
Balance (in Shares) at Dec. 31, 2020						18,529,453	(90,834)
Stock-based compensation expense	1,009							1,009
Net loss	(81,539)								(81,539)
Balance at Mar. 31, 2021	(611,930)					$ 1	$ (256)	33,427	(645,102)
Balance (in Shares) at Mar. 31, 2021			29,484,740	41,205,482	11,953,274
Balance at Mar. 31, 2021			$ 184,247	$ 290,866	$ 75,000
Balance (in Shares) at Mar. 31, 2021						18,529,453	(90,834)
Balance at Dec. 31, 2021	99,418					$ 12		763,087	(663,681)
Balance (Accounting Standards Update 2016-02) at Dec. 31, 2021		$ 3,996								$ 3,996
Balance (in Shares) at Dec. 31, 2021						124,307,884
Reclassification of previously exercised stock options	441							441
Stock issued during period shares reclassification of previously exercised stock options, in shares						131,253
Exercise of warrants	46,485					$ 2		46,483
Stock issued during period shares warrants exercised, in shares						13,281,386
Exercise of stock options	21							21
Exercise of stock options (in Shares)						10,255
Purchase and retirement of common shares, value	(11)							(11)
Purchase and retirement of common shares						(3,058)
Stock-based compensation expense	2,422							2,422
Net loss	(62,867)								(62,867)
Balance at Mar. 31, 2022	$ 89,905					$ 14		$ 812,443	$ (722,552)
Balance (in Shares) at Mar. 31, 2022						137,727,720