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Fair Value Measurements - Summary of Financial Assets Measured at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Amortized Cost	$ 365,767	$ 251,218
Gross Unrealized Holding Gains	5	10
Gross Unrealized Holding Losses	(12)
Aggregate Fair Value	365,760	251,228
Level 1 [Member] | Cash and Cash Equivalents [Member] | Money Market Funds [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Amortized Cost	36,226	143,933
Aggregate Fair Value	36,226	143,933
Level 2 [Member] | Cash and Cash Equivalents [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Amortized Cost	154,365	216,622
Gross Unrealized Holding Gains	1
Gross Unrealized Holding Losses	(1)
Aggregate Fair Value	154,365	216,622
Level 2 [Member] | Cash and Cash Equivalents [Member] | Government Bonds [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Amortized Cost	118,139	72,689
Gross Unrealized Holding Gains	1
Gross Unrealized Holding Losses	(1)
Aggregate Fair Value	118,139	72,689
Level 2 [Member] | Short-Term Investments [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Amortized Cost	211,402	34,596
Gross Unrealized Holding Gains	4	10
Gross Unrealized Holding Losses	(11)
Aggregate Fair Value	211,395	34,606
Level 2 [Member] | Short-Term Investments [Member] | Government Bonds [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Amortized Cost	211,402	34,596
Gross Unrealized Holding Gains	4	10
Gross Unrealized Holding Losses	(11)
Aggregate Fair Value	$ 211,395	$ 34,606

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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