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Fair Value Measurements - Summary of Financial Instruments Measured at Fair Value on Recurring Basis (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Investments, fair value disclosure $ 383,609 $ 35,812
Money market funds    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Investments, fair value disclosure 298,114 2,100
Certificates of deposit    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Investments, fair value disclosure 5,771 1,754
U.S. Treasury securities    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Investments, fair value disclosure 79,724 31,958
Quoted Prices in Active Markets for Identical Assets (Level 1)    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Investments, fair value disclosure 383,609 35,812
Quoted Prices in Active Markets for Identical Assets (Level 1) | Money market funds    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Investments, fair value disclosure 298,114 2,100
Quoted Prices in Active Markets for Identical Assets (Level 1) | Certificates of deposit    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Investments, fair value disclosure 5,771 1,754
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Treasury securities    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Investments, fair value disclosure $ 79,724 $ 31,958