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Investments - Schedule of Contractual Maturities of Held to Maturity Investments (Parenthetical) (Detail) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
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Schedule of Held-to-Maturity Securities [Line Items] |  |
Cash and cash equivalents | $ 62,373 | $ 238,480
Due in One Year or Less |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Cash and cash equivalents | $ 41,600 | $ 58,600

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