Balance Sheet Components - Summary of Amortized Cost, Gross Unrealized Holding Gains or Losses, and Fair Value of Available-for-Sale Investments (Detail) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 44,755	$ 61,228
Gross Unrealized Holding Gains	3	38
Gross Unrealized Holding Losses	(72)	0
Estimated Fair Value	44,686	61,266
Corporate bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	26,721	27,800
Gross Unrealized Holding Gains	3	17
Gross Unrealized Holding Losses	(45)	0
Estimated Fair Value	26,679	27,817
Commercial paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		6,525
Gross Unrealized Holding Gains		0
Gross Unrealized Holding Losses		0
Estimated Fair Value		6,525
U.S. government bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	18,034	26,903
Gross Unrealized Holding Gains	0	21
Gross Unrealized Holding Losses	(27)	0
Estimated Fair Value	$ 18,007	$ 26,924

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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- Definition

Amount 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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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