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Stock-Based Compensation (Stock Options Granted) (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Equity [Abstract]    
Weighted average fair value of options granted (dollars per share)   $ 3.90
Assumptions    
Risk-free interest rate 2.37%  
Assumed dividend yield 2.95%  
Assumed lives of option awards (in years) 5 years 3 months 18 days  
Assumed volatility 65.30%