Basis of Presentation (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Basis of Presentation
Cash and cash equivalents	$ 233,452				$ 233,452		$ 232,968
Accumulated deficit	(314,930)				(314,930)		$ (245,788)
Net loss	$ (37,670)	$ (31,472)	$ (27,619)	$ (26,376)	(69,142)	$ (53,995)
Net cash used in operating activities					$ (65,516)	$ (42,022)