Fair Value Measurements - Summary of Financial Assets Measured at Fair Value on Recurring Basis by Level within Fair Value Hierarchy (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross Unrealized Holding Losses	$ (312)	$ (74)
Debt Securities, Available-for-Sale	0		$ 0
Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Costs	175,846	179,629
Gross Unrealized Holding Gains	11	143
Gross Unrealized Holding Losses	(312)	(74)
Debt Securities, Available-for-Sale	175,545	179,698
Fair Value, Recurring | Level 1 | Short-term investments | U.S. Treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Costs	90,329	53,790
Gross Unrealized Holding Gains	2	58
Gross Unrealized Holding Losses	(253)	(32)
Debt Securities, Available-for-Sale	90,078	53,816
Fair Value, Recurring | Level 1 | Cash equivalents | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Costs	18,556	44,883
Gross Unrealized Holding Gains	0	0
Gross Unrealized Holding Losses	0	0
Debt Securities, Available-for-Sale	18,556	44,883
Fair Value, Recurring | Level 2 | Short-term investments | Commercial paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Costs	5,495	18,097
Gross Unrealized Holding Gains	0	5
Gross Unrealized Holding Losses	(3)	(4)
Debt Securities, Available-for-Sale	5,492	18,098
Fair Value, Recurring | Level 2 | Short-term investments | Corporate debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Costs	48,089	33,214
Gross Unrealized Holding Gains	5	56
Gross Unrealized Holding Losses	(37)	0
Debt Securities, Available-for-Sale	48,057	33,270
Fair Value, Recurring | Level 2 | Short-term investments | USGovernmentSponsoredEnterprisesDebtSecurities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Costs	13,377	29,645
Gross Unrealized Holding Gains	4	24
Gross Unrealized Holding Losses	(19)	(38)
Debt Securities, Available-for-Sale	$ 13,362	$ 29,631