Liquidity, Going Concern and Management Plans - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash, cash equivalents, restricted cash, and restricted cash equivalents	$ 174,994		$ 251,420
Working capital deficit	162,100
Accumulated deficit	1,901,552		$ 1,845,542
Net loss from continuing operations	$ 56,329	$ 83,368