Fair Value Measurement - Summary of Marketable Securities (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	$ 58,181	$ 86,146
Unrealized Gains	143	52
Unrealized Losses	(1,328)	(3,437)
Fair Value	56,996	82,761
Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	1,097
Unrealized Gains	0
Unrealized Losses	0
Fair Value	1,097
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	7,781	21,869
Unrealized Gains	42	26
Unrealized Losses	(20)	(847)
Fair Value	7,803	21,048
Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	38,935	52,199
Unrealized Gains	78	26
Unrealized Losses	(1,262)	(2,289)
Fair Value	37,751	49,936
U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	9,996	11,706
Unrealized Gains	23	0
Unrealized Losses	(21)	(270)
Fair Value	9,998	11,436
Foreign government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	372	372
Unrealized Gains	0	0
Unrealized Losses	(25)	(31)
Fair Value	$ 347	$ 341