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Income Taxes Income Taxes (Table 3) (Details)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Income Taxes [Abstract]      
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate 35.00% 35.00% 35.00%
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential (3.30%) 0.00% 0.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes 3.40% 3.90% 3.90%
Effective Income Tax Rate Reconciliation, Nondeductible Expense 0.10% 0.30% 0.20%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance (0.30%) (0.40%) 0.50%
Effective Income Tax Rate Reconciliation, Deductions, Other 0.20% 0.00% 0.20%
Effective Income Tax Rate, Continuing Operations 35.10% 38.80% 39.80%