Acquisitions and Dispositions (Tables)

3 Months Ended

Mar. 31, 2013

Acquisitions and Dispositions

Schedule of components of the aggregate purchase prices of acquisitions

	First Quarter Ended
	March 31
(millions)	2013			2012
Net tangible assets acquired	$	(4.2	)	$	1.7
Identifiable intangible assets
Customer relationships	47.2			2.3
Trademarks	0.1			0.1
Patents	—			2.8
Other technology	—			0.2
Total intangible assets	47.3			5.4
Goodwill	33.3			14.2
Total aggregate purchase price	76.4			21.3
Contingent consideration	9.8			(2.6		)
Liability for indemnification	5.0			(0.8		)
Net cash paid for acquisitions	$	91.2		$	17.9