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Pensions (Tables)
9 Months Ended
Sep. 30, 2025
Pensions [Abstract]  
Components of Net Periodic Pension Cost
Components of Net Periodic Pension Cost

 
Three Months
Ended September 30
   
Nine Months
Ended September 30
 
   
2025
   
2024
   
2025
   
2024
 
                         
Service cost
 
$
133
   
$
159
   
$
398
   
$
476
 
Interest cost
   
495
     
464
     
1,486
     
1,392
 
Expected return on plan assets
   
(767
)
   
(791
)
   
(2,301
)
   
(2,374
)
Amortization of prior service cost
   
(4
)
   
(4
)
   
(10
)
   
(10
)
Rate-regulated adjustment
   
143
   
172
     
427
     
627
 
Net periodic pension cost
 
$
 
$
   
$
   
$
111