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Stockholders' Equity and Comprehensive Income (Purchase of Parent's Common Stock) (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]      
Shares reserved for various stock compensation, purchase plans, retirement plan and dividend reinvestment plans 10,600,000    
Shares Purchased in Connection with Restricted Stock Vestings and Stock Option Exercises 167,846 194,575 149,997
Cost of Shares Purchased in Connection with Restricted Stock Vestings and Stock Option Exercises $ 3,716 $ 3,495 $ 2,741