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Pension and Employee Benefit Plans - Schedule of Changes in Projected Benefit Obligations (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Change in plan assets:      
Fair value of plan assets at beginning of year $ 22,646    
Fair value of plan assets at end of year 25,144 $ 22,646  
Funded status at end of year $ 500 $ (4,100) $ (5,500)
Discount rate 4.70% 4.90% 2.55%
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Interest Expense, Operating and Nonoperating Interest Expense, Operating and Nonoperating Interest Expense, Operating and Nonoperating
Pension Benefits [Member]      
Change in projected benefit obligation:      
Projected benefit obligation at beginning of year $ 26,760 $ 27,350 $ 35,035
Interest cost 1,215 1,274 877
Actuarial (gain) loss (1,237) 183 (6,540)
Benefits paid (2,073) (2,047) (2,022)
Projected benefit obligation at end of year 24,665 26,760 27,350
Change in plan assets:      
Fair value of plan assets at beginning of year 22,646 21,821 29,474
Actual return on plan assets 3,236 2,872 (5,631)
Employer contribution 1,335 0 0
Benefits paid (2,073) (2,047) (2,022)
Fair value of plan assets at end of year 25,144 22,646 21,821
Funded status at end of year $ 479 $ (4,114) $ (5,529)
Discount rate 5.35% 4.70% 4.90%