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Employee Benefit Plans (Tables)
9 Months Ended
Sep. 30, 2016
Compensation and Retirement Disclosure [Abstract]  
Components of Net Periodic Benefit Cost
The following represents the components of net periodic benefit cost (in thousands):
 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2016
 
2015
 
2016
 
2015
Service cost
$
328

 
$
330

 
$
984

 
$
990

Interest cost
113

 
96

 
339

 
288

Net periodic benefit cost
$
441

 
$
426

 
$
1,323

 
$
1,278