v2.4.0.6

Discontinued Operations (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operation, Tax Effect of Income (Loss) from Discontinued Operation During Phase-out Period	$ 2.6	$ 2.0	$ (0.1)
Discontinued Operation, Tax Effect of Income (Loss) from Disposal of Discontinued Operation	1.3	0	0
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	(9.4)	4.6	(0.3)
Disposal Groups, Including Discontinued Operations, Name [Domain]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Revenue	58.8	101.0	94.2
Income (Loss) from Operations of Discontinued Operations, Net of Tax	5.8	4.6	(0.3)
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax	(15.2)	0	0
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	(9.4)	4.6	(0.3)
Cash consideration on sale of business	51.0
Escrow Deposits	8.0
Transfer Of Assets In Business Divestiture	11.1
Goodwill, Written off Related to Sale of Business Unit	35.2
Accounts Receivable Divested Business	$ 13.0

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Gain (loss) after tax expense or benefit, not previously recognized and resulting from the sale of a business component, which is recognized at the date of sale. A gain (loss) reflects the amount by which the consideration received exceeds (is exceeded by) the net carrying amount (reflecting previous provisions for loss on disposal, if any) of the disposal group.

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After tax income (loss) from operations of a business component (exclusive of any gain (loss) on disposal, or provision therefore) during the reporting period, until its disposal.

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Write-off of the carrying amount of goodwill associated with all or a portion of a reporting unit that is sold in the period.

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This element represents the overall income (loss) from a disposal group apportioned to the parent that is classified as a component of the entity, net of income tax, reported as a separate component of income before extraordinary items after deduction or consideration of the amount which may be allocable to noncontrolling interests, if any. Includes the following (net of tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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