Cash, Cash Equivalents, Restricted Cash And Investments - Summary of Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value (Detail) - USD ($) $ in Thousands |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Debt Securities, Available-for-Sale [Line Items] | ||
| Less than 12 Months, Fair Value | $ 1,049,128 | $ 914,652 |
| Less than 12 Months, Gross Unrealized Losses | (13,630) | (435) |
| 12 Months or Longer, Fair value | 301,710 | 0 |
| 12 Months or Longer, Gross Unrealized Losses | (2,182) | 0 |
| Total, Fair value | 1,350,838 | 914,652 |
| Total, Gross Unrealized Loses | (15,812) | (435) |
| U.S. Government and Agency [Member] | ||
| Debt Securities, Available-for-Sale [Line Items] | ||
| Less than 12 Months, Fair Value | 1,049,128 | 914,652 |
| Less than 12 Months, Gross Unrealized Losses | (13,630) | (435) |
| 12 Months or Longer, Fair value | 301,710 | 0 |
| 12 Months or Longer, Gross Unrealized Losses | (2,182) | 0 |
| Total, Fair value | 1,350,838 | 914,652 |
| Total, Gross Unrealized Loses | $ (15,812) | $ (435) |
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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), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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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), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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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), in unrealized loss position without allowance for credit loss. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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- 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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