Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Consolidated Statements of Comprehensive Loss [Abstract]
Net Income (Loss)	$ (245,595)	$ (221,863)	$ (169,069)
Other comprehensive loss
Net unrealized gain (loss) on investments	676	(196)	(119)
Total comprehensive loss	$ (244,919)	$ (222,059)	$ (169,188)