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Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income tax expense	$ 6.1	$ 0.9	$ 9.1	$ 4.8
Effective income tax rate, continuing operations	16.10%	(12.90%)	12.30%	9.30%
Return to provision adjustments in foreign jurisdictions	2.2
Unrecognized tax benefits, reductions resulting from lapse of applicable statute of limitations			1.5
Income tax expense (benefit), other			(3.3)
Unrecognized tax benefits, decreases resulting from settlements with taxing authorities			4.7
Net tax expense from amendment of state tax returns due to settlement of federal income tax audits				$ 1.3

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Income tax expense (benefit) recorded during the period that relates to certain discrete, unusual or infrequently occurring items.

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Represents tax expense or benefit recognized during the period relating to return to provision adjustments in foreign jurisdictions.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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