Intangible Assets and Goodwill - Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 480.3		$ 480.3		$ 480.4
Accumulated amortization	(179.7)		(179.7)		(158.7)
Intangible assets, net	300.6		300.6		321.7
Amortization expense	7.2	6.6	21.7	18.8
Trade Names
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	345.8		345.8		347.1
Accumulated amortization	(67.6)		(67.6)		(57.5)
Intangible assets, net	278.2		278.2		289.6
Software
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	58.9		58.9		57.9
Accumulated amortization	(53.4)		(53.4)		(51.1)
Intangible assets, net	5.5		5.5		6.8
Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	61.0		61.0		61.5
Accumulated amortization	(52.4)		(52.4)		(45.5)
Intangible assets, net	8.6		8.6		16.0
Other
Acquired Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	14.6		14.6		13.9
Accumulated amortization	(6.3)		(6.3)		(4.6)
Intangible assets, net	$ 8.3		$ 8.3		$ 9.3