Investments - Summary of Composition of Short and Long-term Investments (Detail) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 956,899	$ 1,709,820
Unrealized Gains	1,319	1,573
Unrealized Losses	(4)	(353)
Aggregate Fair Value	958,214	1,711,040
Commercial Paper [Member]
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost		4,941
Aggregate Fair Value		4,941
Corporate Bonds [Member]
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	252,863	284,337
Unrealized Gains	903	533
Unrealized Losses	(1)	(295)
Aggregate Fair Value	253,765	284,575
U.S. Government Agency Securities [Member]
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	45,649	117,158
Unrealized Gains	64	260
Unrealized Losses	(3)	(49)
Aggregate Fair Value	45,710	117,369
US Treasury Securities [Member]
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	658,387	1,303,384
Unrealized Gains	352	780
Unrealized Losses	0	(9)
Aggregate Fair Value	$ 658,739	$ 1,304,155

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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+ Details

- Definition

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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