Financial Instruments - Summary of Investments (Detail) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Short-term, Non-governmental Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Total short-term investments (available for sale), Cost	$ 328,291	$ 329,108
Total short-term investments (available for sale), Gross Unrealized Gain	264	1,105
Total short-term investments (available for sale), Gross Unrealized (Loss)	(663)	(112)
Total short-term investments (available for sale), Fair value	327,892	330,101
Short-term, Treasury and Federal Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Total short-term investments (available for sale), Cost	187,186	180,631
Total short-term investments (available for sale), Gross Unrealized Gain	176	529
Total short-term investments (available for sale), Gross Unrealized (Loss)	(414)	(50)
Total short-term investments (available for sale), Fair value	186,948	181,110
Short-term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Total short-term investments (available for sale), Cost	515,477	509,739
Total short-term investments (available for sale), Gross Unrealized Gain	440	1,634
Total short-term investments (available for sale), Gross Unrealized (Loss)	(1,077)	(162)
Total short-term investments (available for sale), Fair value	$ 514,840	$ 511,211

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.

+ References

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