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Equity-Based Compensation (Summary of the range of exercise prices and the weighted average remaining contractual life of the options) (Details) - $ / shares
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Line Items        
Number of Options Outstanding 951,523 888,571 908,118 922,593
Weighted Average Exercise Price outstanding $ 12.45 $ 14.12 $ 14.46 $ 14.5
Weighted Average Contract Life Remaining 6 years 4 months      
Number of Options Exercisable 415,432      
Weighted Average Exercise Price $ 14.22      
Price Range One [Member]        
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Line Items        
Number of Options Outstanding 4,078      
Weighted Average Exercise Price outstanding $ 8.28      
Price Range Two [Member]        
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Line Items        
Range of Exercise Prices - Lower Range 5.63      
Range of Exercise Prices -Upper Range $ 8.45      
Number of Options Outstanding 1,000      
Weighted Average Exercise Price outstanding $ 10.29      
Weighted Average Contract Life Remaining 3 years      
Number of Options Exercisable 4,078      
Weighted Average Exercise Price $ 8.28      
Price Range Three [Member]        
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Line Items        
Range of Exercise Prices - Lower Range 8.46      
Range of Exercise Prices -Upper Range $ 11.26      
Number of Options Outstanding 461,820      
Weighted Average Exercise Price outstanding $ 11.93      
Weighted Average Contract Life Remaining 1 year 7 months      
Number of Options Exercisable 1,000      
Weighted Average Exercise Price $ 10.29      
Price Range Four [Member]        
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Line Items        
Range of Exercise Prices - Lower Range 11.27      
Range of Exercise Prices -Upper Range $ 14.08      
Number of Options Outstanding 305,300      
Weighted Average Exercise Price outstanding $ 15.37      
Weighted Average Contract Life Remaining 4 years      
Number of Options Exercisable 373,754      
Weighted Average Exercise Price $ 11.95      
Price Range Five [Member]        
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Line Items        
Range of Exercise Prices - Lower Range 14.09      
Range of Exercise Prices -Upper Range $ 16.9      
Number of Options Outstanding 177,825      
Weighted Average Exercise Price outstanding $ 17.44      
Weighted Average Contract Life Remaining 7 years      
Number of Options Exercisable 35,100      
Weighted Average Exercise Price $ 14.52      
Price Range Six [Member]        
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Line Items        
Range of Exercise Prices - Lower Range 19.72      
Range of Exercise Prices -Upper Range $ 22.53      
Number of Options Outstanding 1,500      
Weighted Average Exercise Price outstanding $ 21.86      
Weighted Average Contract Life Remaining 2 years      
Number of Options Exercisable 1,500      
Weighted Average Exercise Price $ 21.86