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Employee Benefit Plans (Tables)
9 Months Ended
Sep. 30, 2022
Retirement Benefits [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
September 30,

 

 

Nine months ended
September 30,

 

 

 

2022

 

 

2021

 

 

2022

 

 

2021

 

Service cost

 

$

871

 

 

$

1,049

 

 

$

2,614

 

 

$

3,147

 

Interest cost on projected benefit obligation

 

 

647

 

 

 

551

 

 

 

1,941

 

 

 

1,653

 

Expected return on plan assets

 

 

(1,141

)

 

 

(1,306

)

 

 

(3,423

)

 

 

(3,919

)

Amortization of unrecognized prior service credit

 

 

 

 

 

(1

)

 

 

 

 

 

(2

)

Amortization of unrecognized net actuarial loss

 

 

64

 

 

 

186

 

 

 

194

 

 

 

557

 

Net periodic benefit expense

 

$

441

 

 

$

479

 

 

$

1,326

 

 

$

1,436