XML 39 R28.htm IDEA: XBRL DOCUMENT v3.22.2.2
Pensions (Tables)
9 Months Ended
Sep. 30, 2022
Pensions [Abstract]  
Components of Net Periodic Pension Cost
Components of Net Periodic Pension Cost

 
Three Months
Ended September 30
   
Nine Months
Ended September 30
 
   
2022
   
2021
   
2022
   
2021
 
                         
Service cost
 
$
257
   
$
271
   
$
769
   
$
814
 
Interest cost
   
334
     
302
     
1,002
     
906
 
Expected return on plan assets
   
(1,054
)
   
(913
)
   
(3,163
)
   
(2,739
)
Amortization of actuarial loss
   
     
121
     
     
363
 
Amortization of prior service cost
   
(4
)
   
(3
)
   
(10
)
   
(9
)
Rate-regulated adjustment
   
1,042
     
797
     
3,127
     
2,390
 
Net periodic pension expense
 
$
575
   
$
575
   
$
1,725
   
$
1,725