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Stockholders' Equity - Stock-based Compensation Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expenses	$ 3,272	$ 1,384	$ 5,463	$ 2,592
Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expenses	1,896	787	3,245	1,471
Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total stock-based compensation expenses	$ 1,376	$ 597	$ 2,218	$ 1,121

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