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Fair Value Measurements and Marketable Securities - Summary of Cash Equivalents and 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 equivalents $ 27,476 $ 24,701
Marketable securities 193,753 60,041
Total cash equivalents and marketable securities 221,229 84,742
US Treasury Bills [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Marketable securities 34,584 17,334
U.S. Government Securities [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Marketable securities 159,169 35,719
Corporate Bonds [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Marketable securities   6,988
Money Market Funds [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash equivalents 27,476 24,701
Quoted Prices in Active Markets, (Level 1) [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash equivalents 27,476 24,701
Marketable securities 34,584 17,334
Total cash equivalents and marketable securities 62,060 42,035
Quoted Prices in Active Markets, (Level 1) [Member] | US Treasury Bills [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Marketable securities 34,584 17,334
Quoted Prices in Active Markets, (Level 1) [Member] | Money Market Funds [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash equivalents 27,476 24,701
Significant Other Observable Inputs (Level 2) [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Marketable securities 159,169 42,707
Total cash equivalents and marketable securities 159,169 42,707
Significant Other Observable Inputs (Level 2) [Member] | U.S. Government Securities [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Marketable securities $ 159,169 35,719
Significant Other Observable Inputs (Level 2) [Member] | Corporate Bonds [Member]    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Marketable securities   $ 6,988