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Income Taxes (Schedule Of Reconciliation Of The Statutory U.S. Federal Income Tax Rate To Effective Income Tax Rate For Continuing Operations) (Details)
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Income Taxes [Abstract]      
Statutory U.S. federal income tax rate 35.00% 35.00% 35.00%
State and local income taxes, net of federal income tax benefit 2.40% 2.80% 1.70%
Nondeductible goodwill 107.30%    
Foreign taxes (16.20%) (1.30%) (1.40%)
Valuation allowance   (0.30%) 0.90%
Tax credits (10.90%) (2.80%) (0.30%)
Worthless stock (3.10%)    
Other (4.50%) (0.90%) (0.70%)
Effective income tax rate 110.00% 32.50% 35.20%