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Stock-Based Compensation (Summary Of Status Of Company's Equity Compensations Plans) (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Shares [Roll Forward]      
Exercised (in shares) (605,494) (50,374) 0
Equity Compensations Plans [Member]
     
Shares [Roll Forward]      
Outstanding, beginning of period (in shares) 3,045,493    
Granted (in shares) 215,000    
Exercised (in shares) (605,494)    
Forfeited (in shares) (34,125)    
Outstanding, end of period (in shares) 2,620,874    
Exercisable, end of period (in shares) 1,623,749    
Weighted average exercise price [Roll Forward]      
Outstanding, beginning of period (in dollars per share) $ 9.90    
Granted (in dollars per share) $ 10.46    
Exercised (in dollars per share) $ 10.73    
Forfeited (in dollars per share) $ 14.07    
Outstanding, end of period (in dollars per share) $ 9.70    
Exercisable, end of period (in dollars per share) $ 10.32    
Weighted-average remaining contractual term [Abstract]      
Outstanding, beginning of period 6 years 3 months 26 days    
Outstanding, end of period 6 years 3 months 26 days    
Exercisable, end of period 5 years 4 months 24 days    
Aggregate intrinsic value [Abstract]      
Exercisable, end of period $ 12,348,577