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Employee Benefit Plans (Tables)
 12 Months Ended
Dec. 31, 2015
Compensation and Retirement Disclosure [Abstract]  
Schedule of Defined Benefit Plans Disclosures
We recognized expense associated with matching contributions as follows (in thousands):
 
 
Year Ended December 31,
 
 
2015
 
2014
 
2013
401(k) expense
 
$
817

 
$
632

 
$
744