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Commitments and Contingencies - Plans (Details) - 2016 Profit Sharing Plan - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits    
Percentage of annual pretax income contributed into the pool 15.00%  
Employer contribution to the Deferred Compensation Plan $ 250 $ 130
Percentage of profit sharing plan award deferred into Deferred Compensation Plan 50.00%  
Key Management Employees [Member]    
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits    
Minimum period of service from the first deferral required for receipt of obligations 3 years  
Minimum number of annual installments 2 years  
Maximum number of annual installments 5 years