Investments - Summary of Gross Unrealized Losses and Fair Value of Available-For-Sale Investment Securities in Unrealized Loss Position (Detail) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Schedule of Available-for-sale Securities [Line Items] | ||
| Less Than 12 Months, Estimated Fair Value | $ 440,235 | $ 91,799 |
| Less Than 12 Months, Unrealized Losses | (1,541) | (57) |
| Total, Estimated Fair Value | 440,235 | 91,799 |
| Total, Unrealized Losses | (1,541) | (57) |
| US Treasury Securities | ||
| Schedule of Available-for-sale Securities [Line Items] | ||
| Less Than 12 Months, Estimated Fair Value | 266,319 | |
| Less Than 12 Months, Unrealized Losses | (695) | |
| Total, Estimated Fair Value | 266,319 | |
| Total, Unrealized Losses | (695) | |
| Government Sponsored Enterprises Debt Securities | ||
| Schedule of Available-for-sale Securities [Line Items] | ||
| Less Than 12 Months, Estimated Fair Value | 173,916 | 91,799 |
| Less Than 12 Months, Unrealized Losses | (846) | (57) |
| Total, Estimated Fair Value | 173,916 | 91,799 |
| Total, Unrealized Losses | $ (846) | $ (57) |
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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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