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Income Taxes (Unaudited) (Details)	3 Months Ended		6 Months Ended
Income Taxes (Unaudited) (Details)	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Income Tax Disclosure [Abstract]
Effective tax rate on earnings from continuing operations	34.00%	34.00%	33.50%	34.30%

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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