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Pension Benefits (Tables)
9 Months Ended
Sep. 30, 2021
Pension Benefits  
Schedule of net periodic pension cost

Three months ended

Nine months ended

    

September 30, 

September 30, 

    

2021

    

2020

    

2021

    

2020

COMPONENTS OF NET PERIODIC BENEFIT COST:

  

 

  

  

 

  

Service cost

$

429

$

419

$

1,287

$

1,257

Interest cost

 

221

 

320

 

664

 

960

Expected return on plan assets

 

(1,004)

 

(811)

 

(3,012)

 

(2,433)

Recognized net actuarial loss

 

610

 

611

 

1,829

 

1,833

Settlement charge

 

269

 

 

1,120

 

Net periodic pension cost

$

525

$

539

$

1,888

$

1,617