Cash Flows (Tables)

12 Months Ended

Dec. 31, 2012

Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract]

Schedule of Cash Flow, Supplemental Disclosures

Net cash paid for acquisitions for the periods presented was as follows:

	For the year ended December 31,
	2012		2011			2010
	(Dollar amounts in millions)
Fair value of assets acquired	$	—	$	30.2		$	411.4
Liabilities assumed or created	—		(5.1		)	(127.5		)
Net assets of businesses acquired	—		25.1			283.9
Other payments	2.6		5.8			—
Payment of contingent consideration (1)	—		—			1.3
	$	2.6	$	30.9		$	285.2

(1) Contingent consideration of approximately $1.3 million was earned in 2009 and was paid in February 2010.