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Earnings Per Common Share And Share Awards (Weighted-Average Assumptions Of Fair Values For Stock Appreciation Rights) (Details)
9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Earnings Per Common Share And Share Awards [Abstract]    
Expected Life in Years 5 years 5 years
Volatility 44.60% 43.60%
Interest Rate 0.80% 1.90%
Yield Rate 0.60% 0.80%