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Employee Benefit Plans (Tables)
3 Months Ended
Mar. 31, 2021
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

March 31,

 

 

 

2021

 

 

2020

 

Service cost

 

$

1,049

 

 

$

923

 

Interest cost on projected benefit obligation

 

 

551

 

 

 

635

 

Expected return on plan assets

 

 

(1,306

)

 

 

(1,284

)

Amortization of unrecognized prior service credit

 

 

(1

)

 

 

(9

)

Amortization of unrecognized net actuarial loss

 

 

186

 

 

 

323

 

Net periodic benefit expense

 

$

479

 

 

$

588