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Employee Benefit Plans (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Deferred Compensation Plan [Line Items]      
Percent company total match on employee deferred compensation plan contributions, maximum (in hundredths) 4.00%    
Matching contributions - deferred compensation plan $ 218 $ 233 $ 36
Savings and Retirement 401K [Member]      
Defined Contribution Plan Disclosure [Line Items]      
Eligible employees' maximum allowable contribution as a percentage of compensation (in hundredths) 75.00%    
Percentage company total match on employee contributions, maximum (in hundredths) 4.00%    
Company match on the first three percent of compensation deferred (in hundredths) 100.00%    
Company match on deferrals between three percent and five percent of compensation (in hundredths) 50.00%    
Compensation deferred percentage eligible for one hundred percent match on employees' contributions (in hundredths) 3.00%    
Compensation deferred percentage eligible for fifty percent match on employee contributions (in hundredths) 5.00%    
Matching contributions -defined contribution plans $ 5,583 $ 5,235 $ 4,861