Financial Instruments - Summary of Investments (Detail) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Short-term, Non-governmental Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Total short-term investments (available for sale), Cost	$ 294,361	$ 246,070
Total short-term investments (available for sale), Gross Unrealized Gain	738	466
Total short-term investments (available for sale), Gross Unrealized (Loss)	(90)	(278)
Total short-term investments (available for sale), Fair value	295,009	246,258
Short-term, Treasury and Federal Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Total short-term investments (available for sale), Cost	170,661	213,394
Total short-term investments (available for sale), Gross Unrealized Gain	305	258
Total short-term investments (available for sale), Gross Unrealized (Loss)	(63)	(115)
Total short-term investments (available for sale), Fair value	170,903	213,537
Short-term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Total short-term investments (available for sale), Cost	465,022	459,464
Total short-term investments (available for sale), Gross Unrealized Gain	1,043	724
Total short-term investments (available for sale), Gross Unrealized (Loss)	(153)	(393)
Total short-term investments (available for sale), Fair value	$ 465,912	$ 459,795

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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