Basis of Presentation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Basis of Presentation
Cash, cash equivalents and marketable securities	$ 278,400
Net loss	(29,361)	$ (23,050)
Net cash used in operations	$ (28,569)	$ (24,534)