Cash and Investments in Marketable Securities - Portfolio of Cash and Investments in Marketable Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash	$ 10,368	$ 17,843
Total cash and investments in marketable securities	290,640	329,441
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	258,708
Gross Unrealized Gains	3
Gross Unrealized Losses	(518)
Fair Value	258,193	294,123
Level 2 | Corporate notes and bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	88,822
Gross Unrealized Gains	3
Gross Unrealized Losses	(258)
Fair Value	88,567	38,882
Level 2 | Corporate commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	166,404
Gross Unrealized Gains	0
Gross Unrealized Losses	(257)
Fair Value	166,147	255,241
Level 2 | Obligations of U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amortized Cost	3,482
Gross Unrealized Gains	0
Gross Unrealized Losses	(3)
Fair Value	3,479	0
Level 2 | Certificates of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, fair value disclosure	14,020	15,116
Level 1 | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments, fair value disclosure	$ 8,059	$ 2,359