Nature of the Business - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended						9 Months Ended
	Mar. 25, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Nov. 16, 2023
Nature Of Business [Line Items]
Common stock, aggregate purchase price											$ 42,000
Net Income (Loss)		$ (17,595)	$ (16,978)	$ 1,029	$ (14,031)	$ (5,807)	$ (6,838)	$ (33,544)	$ (26,676)
Accumulated deficit		(220,625)						(220,625)		$ (187,081)
Cash and cash equivalents		89,078			$ 36,256			89,078	$ 36,256	25,617
Short-term investments		0						0		$ 0
Homology
Nature Of Business [Line Items]
Business combination shares conversion into rights to purchase common stock	1,682,045
Stockholders' equity, reverse stock split	one-for-eighteen
Outstanding common stock of the combined company	74.40%
Conversion of Stock, Shares Converted	7,017,842
Parent company [Member]
Nature Of Business [Line Items]
Cash and cash equivalents		89,100						89,100
Short-term investments		$ 89,100						$ 89,100