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 |
|---|---|
|
Mar. 31, 2025
USD ($)
| |
| Fair Value Disclosures [Abstract] | |
| Balance at the beginning of the period | $ 2,641 |
| Gain included in Other comprehensive income | $ 23 |
| 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 | $ 2,664 |