Fair Value Measurements - Summary of Fair Value of Financial Instruments (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
U.S. Treasury Money Market Funds [Member]
Cash equivalents:
Cash equivalents	$ 23,310	$ 17,270
U.S. Government Securities [Member]
Short-term investments:
Short-term investments	97,652	135,734
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Treasury Money Market Funds [Member]
Cash equivalents:
Cash equivalents	23,310	17,270
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Government Securities [Member]
Short-term investments:
Short-term investments	$ 97,652	$ 135,734