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Fair Value Measurements - Change in Estimated Fair Values Calculated for Investment Valued on Recurring Basis Utilizing Level 3 Inputs (Detail) $ in Thousands | 3 Months Ended
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Mar. 31, 2026 USD ($)
Fair Value Disclosures [Abstract] |
Balance at the beginning of the period | $ 2,462
Gain included in Other comprehensive income | $ 46
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration] | OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax
Balance at the end of the period | $ 2,508

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