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Pension Information (Tables)
6 Months Ended
Jun. 30, 2019
Compensation And Retirement Disclosure [Abstract]  
Components of Net Periodic Pension Benefit

Net periodic pension benefit was as follows:

 

 

 

Three months ended

 

 

Six Months Ended

 

 

 

June 30,

 

 

June 30,

 

 

 

2019

 

 

2018

 

 

2019

 

 

2018

 

Service cost

 

$

 

 

$

 

 

$

 

 

$

 

Interest cost

 

 

128

 

 

 

125

 

 

 

256

 

 

 

250

 

Expected return on plan assets

 

 

(256

)

 

 

(273

)

 

 

(512

)

 

 

(546

)

Other components

 

 

147

 

 

 

143

 

 

 

294

 

 

 

286

 

Net periodic pension benefit (cost)

 

$

19

 

 

$

(5

)

 

$

38

 

 

$

(10

)