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Fair Value Measurements - Summary of Financial Instruments Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
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Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Investments, fair value disclosure | $ 368,644 | $ 383,609
Money market funds |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Investments, fair value disclosure | 284,736 | 298,114
Certificates of deposit |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Investments, fair value disclosure | 5,243 | 5,771
U.S. Treasury securities |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |
Investments, fair value disclosure | 78,665 | 79,724
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 | 368,644 | 383,609
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 | 284,736 | 298,114
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 | 5,243 | 5,771
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 | $ 78,665 | $ 79,724

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