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Employee Benefit Plans - Components of Net Periodic Benefit Cost (Credit) (Detail) - Pension Plans [Member] - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Components of Net Periodic Benefit Cost (Credit):    
Service cost $ 98 $ 211
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Compensation and benefits Compensation and benefits
Interest cost $ 5,152 $ 3,000
Expected return on plan assets (5,816) (6,624)
Amortization of:    
Prior service cost 26 29
Net actuarial loss 1,510 1,087
Settlement loss 759 436
Net periodic benefit cost (credit) $ 1,729 $ (1,861)