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Short-Term Investments - Summary of Short-term Investments Classified as Available-for-sale Securities (Detail) $ in Thousands	Sep. 30, 2023 USD ($)
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 55,942
Fair Value	55,942
U.S. Government Securities [Member]
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	39,871
Fair Value	39,871
U.S. Government Agency Securities [Member]
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	16,071
Fair Value	$ 16,071

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- Definition

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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