Net Loss per Share - Computation of Basic and Diluted Net Loss per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Net Loss Per Share
Net loss - basic and diluted	$ (70,867)	$ (118,513)	$ (85,474)
Weighted-average common shares outstanding:
Basic (in shares)	4,562,738	4,512,422	4,471,130
Diluted (in shares)	4,562,738	4,512,422	4,471,130
Net loss per share:
Basic (in dollars per share)	$ (15.53)	$ (26.26)	$ (19.12)
Diluted (in dollars per share)	$ (15.53)	$ (26.26)	$ (19.12)