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Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents $ 119,017 $ 210,518
Level 1 [Member] | Fair Value, Recurring [Member] | Money Market Funds [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 117,985 209,273
Estimated Fair Value 117,985 209,273
Level 2 [Member] | Fair Value, Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
U.S. Treasury securities, Gross unrealized gains 1 407
Gross unrealized losses (181)  
Level 2 [Member] | Fair Value, Recurring [Member] | U.S. Treasury Securities [Member] | Short-Term Investments [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
U.S. Treasury securities, Amortized Cost 133,371 63,456
U.S. Treasury securities, Gross unrealized gains 1 407
Gross unrealized losses (181)  
U.S. Treasury securities, Fair Value 133,191 63,863
Level 1 And Level 2 [Member] | Fair Value, Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total Amortized Cost 251,356 272,729
Total Fair Value $ 251,176 $ 273,136