Nature of Business and Overview (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Nature of Business and Overview
Cash, cash equivalents and marketable securities	$ 423,600
Net loss	(141,429)	$ (112,325)	$ (70,511)
Net cash used in operations	$ (107,291)	$ (103,732)	$ (60,909)