Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues:
Total revenues	$ 0	$ 0	$ 0
Operating expenses:
Research and development	205,164	184,809	72,324
General and administrative	37,318	21,864	22,648
Total operating expenses	242,482	206,673	94,972
Loss from operations	(242,482)	(206,673)	(94,972)
Interest income	363	4,329	11,024
Other income	273	100	0
Net loss	$ (241,846)	$ (202,244)	$ (83,948)
Net loss per common share:
Basic and diluted net loss per common share (in dollars per share)	$ (14.63)	$ (13.09)	$ (5.45)
Basic and diluted weighted average number of common shares outstanding	16,535,188	15,446,638	15,394,659