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Income Taxes - Rate Reconciliation (Details)	3 Months Ended
Income Taxes - Rate Reconciliation (Details)	Mar. 31, 2013	Mar. 31, 2012
Rate Reconciliation [Abstract]
Actual Income Tax Rate On Continuing Operations	45.80%	37.50%

- 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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