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Employee Benefit Plans
 3 Months Ended
Mar. 31, 2016
Compensation and Retirement Disclosure [Abstract]  
Employee Benefit Plans
Employee Benefit Plans
The Company has a defined benefit pension plan which is frozen, that covers certain U.S. hourly and salaried employees. The defined benefit plan provides benefits based primarily on the participants’ years of service and compensation. The following table represents the components of net periodic pension expense:
 
Three Months Ended March 31,
 
2016

2015
Interest cost
$
571

 
$
572

Expected return on plan assets
(697
)
 
(799
)
Amortization of net loss
384

 
357

Total net periodic pension expense
$
258

 
$
130