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Benefit Plans - Defined Benefit Pension Plan (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Retirement Benefits [Abstract]    
Service cost – benefits earned during year $ 264 $ 330
Interest cost on projected benefit obligation 758 1,603
Expected return on plan assets $ (1,585) $ (2,599)
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Employee Benefits Employee Benefits
Amortization of prior service cost $ (9) $ (9)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Employee Benefits Employee Benefits
Amortization of net (gain) loss $ (48) $ 21
Net periodic pension income $ (620) $ (654)