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Income Tax Expense (Details)	12 Months Ended
Income Tax Expense (Details)	Dec. 31, 2012 Rate	Dec. 31, 2011 Rate	Dec. 31, 2010 Rate
Income Taxes [Abstract]
Effective Income Tax Rate, Continuing Operations	40.00%	40.00%	40.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	40.00%	30.00%	30.00%

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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- Definition

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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