Fair Value Measurements and Cash Equivalents/Marketable Securities - Summary of Marketable Securities (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	$ 59,960	$ 91,634
Gross Unrealized Gains	81	12
Gross Unrealized Losses		(43)
Fair Value	60,041	91,603
U.S. Treasury Bills [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	17,330
Gross Unrealized Gains	4
Fair Value	17,334
Commercial paper (due within 1 year) [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	6,977
Gross Unrealized Gains	11
Fair Value	6,988
U.S. Government securities (due within 1 year) [Member]
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	35,653	91,634
Gross Unrealized Gains	66	12
Gross Unrealized Losses		(43)
Fair Value	$ 35,719	$ 91,603