Investments - Schedule of Unrealized Positions of the Company's Available-For-Sale Securities Disaggregated by Class of Instrument (Detail) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 523,391	$ 51,335
Gross Unrealized Gains	27	140
Gross Unrealized Losses	(965)	0
Fair Value	522,453	51,475
US Treasury Securities
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	133,083	12,043
Gross Unrealized Gains	2	33
Gross Unrealized Losses	(264)	0
Fair Value	132,821	12,076
Corporate Debt
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	390,308	39,292
Gross Unrealized Gains	25	107
Gross Unrealized Losses	(701)	0
Fair Value	$ 389,632	$ 39,399

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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