Income Taxes (Narrative) (Details)	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Income Taxes [Abstract]
Effective tax rate	24.90%	6.70%
Statutory rate	35.00%	35.00%

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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The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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