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Employee Benefit Plans (Tables)
 9 Months Ended
Sep. 30, 2019
Defined Benefit Plan [Abstract]  
Net Periodic Pension Benefit
The components of net periodic pension benefit (costs) for the three and nine months ended September 30, 2019 and 2018 are recorded in other pension benefits, net in the consolidated statements of operations and consisted of the following:

 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2019
 
2018
 
2019
 
2018
Interest cost
$
(32
)
 
$
(32
)
 
$
(96
)
 
$
(96
)
Expected return on plan assets
41

 
52

 
123

 
156

Remeasurement gain, net
—

 
187

 
—

 
187

Net periodic pension benefits
$
9

 
$
207

 
$
27

 
$
247