Net Loss Per Share - Calculation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended				6 Months Ended
		Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Net loss		$ (104,181)	$ (75,309)	$ (317,611)	$ (48,417)	$ (179,490)	$ (366,028)
Net loss attributable to Common Stockholders		$ (104,181)		$ (317,611)		$ (179,490)	$ (366,028)
Basic weighted average number of common shares and common share equivalents outstanding (in shares)	[1]	476,061,809		408,156,682		474,553,609	395,422,849
Diluted weighted average number of common shares and common share equivalents outstanding (in shares)	[1]	476,061,809		408,156,682		474,553,609	395,422,849
Net loss per share attributable to Common Stockholders—basic (in dollars per share)	[1]	$ (0.22)		$ (0.78)		$ (0.38)	$ (0.93)
Net loss per share attributable to Common Stockholders—diluted (in dollars per share)	[1]	$ (0.22)		$ (0.78)		$ (0.38)	$ (0.93)

[1] Because the Company had a net loss during the three and six months ended June 30, 2022 and 2021, the Company's potentially dilutive securities, which include stock options, restricted stock, preferred stock, and warrants to purchase shares of common stock and preferred stock, have been excluded from the computation of diluted net loss per share, as the effect would be anti-dilutive.