Basis of Presentation (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Basis of Presentation
Cash, cash equivalents and marketable securities	$ 756,000						$ 756,000
Net loss	$ (42,121)	$ (35,842)	$ (32,808)	$ (38,260)	$ (30,502)	$ (29,361)	(110,771)	$ (98,123)
Net cash used in operations							$ (125,302)	$ (74,758)