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Employee Benefit Plans (Tables)
6 Months Ended
Jun. 30, 2020
Compensation And Retirement Disclosure [Abstract]  
Components of Net Periodic Benefit Expense

The components of the Company’s net periodic benefit expense for its pension and post-retirement obligations were as follows (in thousands):

 

 

 

Three months ended

June 30,

 

 

Six months ended

June 30,

 

 

 

2020

 

 

2019

 

 

2020

 

 

2019

 

Service cost

 

$

923

 

 

$

802

 

 

$

1,846

 

 

$

1,604

 

Interest cost on projected benefit obligation

 

 

635

 

 

 

695

 

 

 

1,270

 

 

 

1,390

 

Expected return on plan assets

 

 

(1,284

)

 

 

(1,184

)

 

 

(2,568

)

 

 

(2,368

)

Amortization of unrecognized prior service credit

 

 

(9

)

 

 

(17

)

 

 

(18

)

 

 

(33

)

Amortization of unrecognized net actuarial loss

 

 

323

 

 

 

366

 

 

 

646

 

 

 

732

 

Net periodic benefit expense

 

$

588

 

 

$

662

 

 

$

1,176

 

 

$

1,325