Stock-Based Compensation - Summary of Stock-based compensation expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Share-based Payment Arrangement
Stock-based compensation expense	$ 3,244	$ 1,888
Research and development expenses
Share-based Payment Arrangement
Stock-based compensation expense	1,509	1,014
General and administrative expenses
Share-based Payment Arrangement
Stock-based compensation expense	$ 1,735	$ 874