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Investments - Schedule of Contractual Maturities of Available-for-sale Investment Securities (Detail) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Amortized Cost
Due in one year or less	$ 40,857
Due after one year through five years	714
Total	41,571	$ 40,252
Fair Value
Due in one year or less	41,138
Due after one year through five years	708
Total	$ 41,846	$ 40,473

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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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