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Cash, Cash Equivalents, Restricted Cash And Investments - Schedule of Contractual Maturity Date of Cash Cash Equivalents, Restricted Cash and Investments in Available-for-Sale Securities (Detail) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Cash and Cash Equivalents [Line Items]
1 Year or Less	$ 1,082,868
Greater than 1 Year	408,390
Total	1,491,258	$ 366,281
Cash and money market funds [Member]
Cash and Cash Equivalents [Line Items]
1 Year or Less	295,621
Greater than 1 Year	5,787
Total	301,408	33,204
Corporate Notes and Bonds [Member]
Cash and Cash Equivalents [Line Items]
1 Year or Less	3,483
Greater than 1 Year	0
Total	3,483	45,792
U.S. Government Corporations and Agencies Securities [Member]
Cash and Cash Equivalents [Line Items]
1 Year or Less	783,764
Greater than 1 Year	402,603
Total	$ 1,186,367	$ 287,285

X

- Definition

Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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