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Employee Benefit Plans
 6 Months Ended
Jun. 30, 2015
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 (income):
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2015

2014
 
2015
 
2014
Interest cost
$
571

 
$
590

 
$
1,143

 
$
1,180

Expected return on plan assets
(800
)
 
(776
)
 
(1,599
)
 
(1,552
)
Amortization of net loss
357

 
80

 
714

 
160

Total net periodic pension expense (income)
$
128

 
$
(106
)
 
$
258

 
$
(212
)