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Income Taxes Income Taxes (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating Loss Carryforwards [Line Items]
Effective Income Tax Rate, Continuing Operations	35.00%
Hourly pension plan reversions	$ 0	$ 0	$ 54.5
Unrecognized Tax Benefits	$ 0	$ 5.5	$ 5.5

- 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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