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Discontinued Operations (Summary of Income From Discontinued Operations) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Discontinued Operations and Disposal Groups [Abstract]
Revenues	$ 9.6us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue	$ 120.3us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue
Operating expenses	21.9us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense	136.7us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense
Operating loss before income taxes	(12.3)us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	(16.4)us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss
Income tax benefit	12.1us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod	(5.0)us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod
Gain (loss) on disposal of discontinued operations, net	0us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	19.4us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
DISCONTINUED OPERATIONS, NET	$ (0.2)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax	$ (2.0)us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax

X

- Definition

Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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Amount of tax expense (benefit) attributable to income (loss) from operations classified as a discontinued operation. Excludes tax expense (benefit) for gain (loss) on disposal and for provision for gain (loss) until disposal.

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