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Discontinued Operations (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Sep. 30, 2012	Jun. 30, 2012	Sep. 30, 2011	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Revenue		$ 0		$ 27.5	$ 0	$ 56.0
Discontinued Operation, Tax Effect of Income (Loss) from Discontinued Operation During Phase-out Period		0		0.6	0	1.4
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent		0		1.3	0	3.1
Cash consideration on sale of business			51.0
Escrow Deposits			8.0
Proceeds From Escrow Received During The Period	$ 7.8

Income tax expense or benefit attributable to Income or Loss from discontinued operations during the phase-out period.

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- Definition

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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