Employee Benefits (Narrative) (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Maximum percentage of elegible compensation able to be contributed to the defined contribution plan 90.00%    
Employer match contribution 3.00%    
Amount contributed to the defined contribution plan $ 600,000 $ 1,000,000 $ 700,000
Share-based compensation expense 0 0 0
Deferred tax asset related to stock-based compensation expense 0 0 0
Restricted shares granted 477,987 401,844 200,798
Recognized compensation expense related to restricted shares outstanding 900,000 700,000 100,000
Unrecognized compensation expense, expected to be recognized in next fiscal year 900,000    
Unrecognized compensation expense, period of recognition 2 years    
Canceled/expired, Number of Options   (5,000)  
Exercised, Weighted Average Exercise Price   $ 16.93  
Number of Options Outstanding 0   5,000
Granted, Weighted Average Exercise Price     $ 16.93
Exercised, Number of Options 0 0 0
Expiration period of restricted shares 1 year    
Granted, Number of Options 0 0 0
Restricted Stock [Member]      
Unrecognized compensation expense related to restricted shares granted 1,600,000    
Stock Options [Member]      
Unrecognized compensation expense related to restricted shares granted $ 0    
Maximum [Member]      
Vesting period of restriced stock 3 years    
Minimum [Member]      
Vesting period of restriced stock 1 year