Annual report pursuant to Section 13 and 15(d)

Income Taxes (Reconciliation Of Effective Tax Rate, By Percentage) (Details)

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Income Taxes (Reconciliation Of Effective Tax Rate, By Percentage) (Details)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Income Taxes [Abstract]      
Tax at U.S. statutory rate 35.00% 35.00% 35.00%
Surtax exemption (1.50%) (0.30%) (0.60%)
State income taxes, net of federal benefit 1.70% 1.90% 2.40%
Foreign income taxes, net of foreign tax credits (0.20%) 4.70% 2.70%
Impairment of goodwill   2.50%  
Other (0.90%) 0.60% (1.60%)
Effective tax rate 34.10% 44.40% 37.90%