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Income Taxes (Details Textuals) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Statement Income Taxes Details [Abstract]
Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate	35.00%
U.S. federal alternative minimum tax credits	$ 3.2
Foreign tax credit carryforward	1.7
U. S. state tax net operating loss carryforwards	273.1
Deferred Tax Assets, Valuation Allowance	$ 449.8

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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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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