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Cash and Investments in Marketable Securities - Portfolio of Cash and Investments in Marketable Securities (Detail) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Gross Unrealized Losses |  | $ (1,800)
Cash | $ 26,040 | 8,798
Total cash and investments in marketable securities | 456,827 | 504,977
Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Amortized Cost | 375,048 |
Gross Unrealized Gains | 3 |
Gross Unrealized Losses | (692) |
Fair Value | 374,359 | 427,726
Level 2 | Corporate notes and bonds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Amortized Cost | 60,165 |
Gross Unrealized Gains | 0 |
Gross Unrealized Losses | (271) |
Fair Value | 59,894 | 83,522
Level 2 | Corporate commercial paper |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Amortized Cost | 298,216 |
Gross Unrealized Gains | 3 |
Gross Unrealized Losses | (421) |
Fair Value | 297,798 | 344,204
Level 2 | Obligations of U.S. government agencies |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Amortized Cost | 16,667 |
Gross Unrealized Gains | 0 |
Gross Unrealized Losses | 0 |
Fair Value | 16,667 | 0
Level 2 | Certificates of deposit |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Investments, fair value disclosure | 7,503 | 21,399
Level 1 | Money market funds |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Investments, fair value disclosure | $ 48,925 | $ 47,054

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