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Employee Benefit Plans (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expenses related to employee benefit plans $ 1,487 $ 1,280 $ 1,173
Long Term Cash Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Deferred compensation liability, current 808    
Deferred compensation liability, noncurrent   245  
Awards granted under the LTCIP $ 0 $ 0