Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in-Capital	Accumulated Other Comprehensive Gain/(Loss)	Treasury Stock	Accumulated Deficit	Total
Balance at Dec. 31, 2022	$ 6,084	$ 7,297,306	$ (26,004)	$ (96,261)	$ (3,120,911)	$ 4,060,214
Balance (in shares) at Dec. 31, 2022	608,421,785			18,076,127
Increase (Decrease) in Stockholders' Equity
Net loss					(206,561)	(206,561)
Other comprehensive loss			6,970			6,970
Stock-based compensation	$ 2	43,300				43,302
Stock-based compensation (in shares)	228,954
Stock option exercises and issuance of common stock upon grant/vesting of restricted stock and restricted stock unit awards	$ 6	668				674
Stock option exercises and issuance of common stock upon grant/vesting of restricted stock and restricted stock unit awards (in shares)	620,250
Treasury stock acquired from employees upon exercise of stock options and vesting of restricted stock and restricted stock unit awards				$ (2,590)		(2,590)
Treasury stock acquired from employees upon exercise of stock options and vesting of restricted stock and restricted stock unit awards (in shares)				169,787
Exercise of warrants	$ 28	(28)
Exercise of warrants (in shares)	2,680,637
Provision for common stock warrants		19,641				19,641
Balance at Mar. 31, 2023	$ 6,120	7,360,887	(19,034)	$ (98,851)	(3,327,472)	3,921,650
Balance (in shares) at Mar. 31, 2023	611,951,626			18,245,914
Balance at Dec. 31, 2023	$ 6,254	7,494,685	(6,802)	$ (106,268)	(4,489,744)	$ 2,898,125
Balance (in shares) at Dec. 31, 2023	625,305,025			19,169,366		625,305,025
Increase (Decrease) in Stockholders' Equity
Net loss					(295,776)	$ (295,776)
Other comprehensive loss			(2,276)			(2,276)
Stock-based compensation	$ 9	13,695				13,704
Stock-based compensation (in shares)	923,027
Public offerings, common stock, net of issuance costs	$ 796	304,550				305,346
Public offerings, common stock, net of issuance costs (in shares)	79,553,175
Stock option exercises and issuance of common stock upon grant/vesting of restricted stock and restricted stock unit awards	$ (2)	43				41
Stock option exercises and issuance of common stock upon grant/vesting of restricted stock and restricted stock unit awards (in shares)	(176,678)
Treasury stock acquired from employees upon exercise of stock options and vesting of restricted stock and restricted stock unit awards				$ (278)		(278)
Treasury stock acquired from employees upon exercise of stock options and vesting of restricted stock and restricted stock unit awards (in shares)				72,849
Provision for common stock warrants		10,236				10,236
Balance at Mar. 31, 2024	$ 7,057	$ 7,823,209	$ (9,078)	$ (106,546)	$ (4,785,520)	$ 2,929,122
Balance (in shares) at Mar. 31, 2024	705,604,549			19,242,215		705,604,549