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Stock-Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Number of Shares, Options outstanding, Beginning of period (in shares) 95,293  
Number of Shares, Granted (in shares) 0  
Number of Shares, Exercised (in shares) (34,500)  
Number of Shares, Cancelled (in shares) 0  
Number of Shares, Options outstanding, End of period (in shares) 60,793 95,293
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]    
Weighted Average Exercise Price, Options outstanding, Beginning of period (in dollars per share) $ 8.86  
Weighted Average Exercise Price, Granted (in dollars per share) 0.00  
Weighted Average Exercise Price, Exercised (in dollars per share) 10.18  
Weighted Average Exercise Price, Cancelled (in dollars per share) 0.00  
Weighted Average Exercise Price, Options outstanding, End of period (in dollars per share) $ 8.12 $ 8.86
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]    
Weighted Average Remaining Contractual Terms (Years), Options outstanding 2 years 11 months 3 years 1 month 3 days
Aggregate Intrinsic Value, Options outstanding $ 1.0 $ 1.8