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Condensed Consolidated Statements Of Earnings And Comprehensive Income (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Condensed Consolidated Statements Of Earnings And Comprehensive Income [Abstract]
(Loss) Income from discontinued operations, tax (benefit) expense		$ (0.3)
Loss on sale of discontinued business, tax	$ 0.1

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

Amount of tax expense or benefit on gain (loss), not previously recognized, resulting from the sale of a business component.