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Fair Value Measurements - Summary of Financial Assets Measured at Fair Value on Recurring Basis (Detail) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
US Treasury Securities    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Short-term investments   $ 32,143
Long-term investments   7,238
US Government-Sponsored Enterprises Securities    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Short-term investments   66,089
Long-term investments   34,643
Recurring    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total assets measured at fair value $ 127,687 164,195
Recurring | Money Market Funds    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash and cash equivalents, fair value 14,807 24,082
Recurring | US Treasury Securities    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Short-term investments 9,687 32,143
Long-term investments   7,238
Recurring | US Government-Sponsored Enterprises Securities    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Short-term investments 103,193 66,089
Long-term investments   34,643
Recurring | Level 1    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total assets measured at fair value 24,494 63,463
Recurring | Level 1 | Money Market Funds    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Cash and cash equivalents, fair value 14,807 24,082
Recurring | Level 1 | US Treasury Securities    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Short-term investments 9,687 32,143
Long-term investments   7,238
Recurring | Level 2    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Total assets measured at fair value 103,193 100,732
Recurring | Level 2 | US Government-Sponsored Enterprises Securities    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Short-term investments $ 103,193 66,089
Long-term investments   $ 34,643