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Benefit Plans (Tables)
9 Months Ended
Sep. 30, 2025
Retirement Benefits [Abstract]  
Schedule of Net Benefit Costs
The components of net periodic benefit costs for the defined benefit plans and other postretirement benefits for the three and nine months ended September 30, 2025 and 2024 are as follows:
 Pension BenefitsOther Benefits
Three months ended September 30,
 2025202420252024
Service cost$1,644 1,666 $156 166 
Interest cost3,901 3,613 337 295 
Expected return on assets(4,944)(4,463)(295)(267)
Amortization of actuarial (gain) loss
(458)(18)(214)(161)
Amortization of prior service cost— — 
Total$147 802 $(16)33 
 Pension BenefitsOther Benefits
Nine months ended September 30,
 2025202420252024
Service cost$4,931 4,997 $468 498 
Interest cost11,702 10,839 1,011 886 
Expected return on assets(14,831)(13,389)(885)(801)
Amortization of actuarial (gain) loss
(1,373)(53)(642)(483)
Amortization of prior service cost11 11 — — 
Total$440 2,405 $(48)100