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Equity Compensation (Narrative) (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Equity Compensation Arrangement by Share-based Payment Award [Abstract]        
Maximum shares of common stock 20,000,000   20,000,000  
Maximum annual shares awarded to employee     500,000  
Shares available for granting additional awards 7,415,544   7,415,544  
Unrecognized compensation cost of non-vested stock-based compensation awards $ 8,100,000   $ 8,100,000  
Unrecognized compensation cost of non-vested stock-based compensation awards expected to be recognized over a weighted average period (years)     2 years 4 months 29 days  
Number of options granted 0 0 0 0
Intrinsic value of stock options exercised 6,000 100,000 2,000,000 300,000
Stock Options | Minimum
       
Equity Compensation Arrangement by Share-based Payment Award [Abstract]        
Vesting period (months)     24 months  
Stock Options | Maximum
       
Equity Compensation Arrangement by Share-based Payment Award [Abstract]        
Vesting period (months)     72 months  
Restricted Stock | Minimum
       
Equity Compensation Arrangement by Share-based Payment Award [Abstract]        
Vesting period (months)     12 months  
Restricted Stock | Maximum
       
Equity Compensation Arrangement by Share-based Payment Award [Abstract]        
Vesting period (months)     84 months  
Performance Shares | Minimum
       
Equity Compensation Arrangement by Share-based Payment Award [Abstract]        
Vesting period (months)     12 months  
Performance Awards, percentage range of target to be earned     0.00%  
Performance Shares | Maximum
       
Equity Compensation Arrangement by Share-based Payment Award [Abstract]        
Vesting period (months)     60 months  
Performance Awards, percentage range of target to be earned     133.00%  
Restricted Stock
       
Equity Compensation Arrangement by Share-based Payment Award [Abstract]        
Number of Restricted Shares granted 0 0 10,000 0
Fair value of restricted stock awards vested $ 200,000 $ 1,000,000 $ 300,000 $ 1,500,000
Stock Options
       
Equity Compensation Arrangement by Share-based Payment Award [Abstract]        
Maximum period for exercisable options (years and days)     10 years 1 day