Net Loss Income per Share - Computation of Basic and Diluted Net Loss per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Net Loss Per Share
Net loss - basic and diluted	$ (26,665)	$ (27,749)
Weighted-average common shares outstanding:
Basic	53,872,038	53,507,060
Diluted	53,872,038	53,507,060
Net loss per share:
Basic	$ (0.49)	$ (0.52)
Diluted	$ (0.49)	$ (0.52)