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Employee Benefit Plans - Principal Assumptions in Developing Year-End Actuarial Present Value of Projected Benefit Obligation (Details)
Dec. 31, 2025
Dec. 31, 2024
Defined benefit plans:    
Interest crediting rate 4.70% 4.60%
Pension Benefits    
Defined benefit plans:    
Discount rate 5.10% 5.00%
Rate of compensation increase 4.60% 4.80%