Litigation, Commitments and Contingencies - Operating Leases (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating Leases, Rent Expense, Net [Abstract]
Minimum lease payments	$ 6.1	$ 8.7	$ 9.6
Contingent rentals	6.1	4.5	7.2
Rental income	(3.4)	(3.1)	(2.9)
Sublease income	(0.7)	(0.8)	(0.5)
Total rental expense	8.1	9.3	13.4
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2013	8.0
2014	4.9
2015	2.1
2016	1.3
2017	0.9
Thereafter	1.6
Total	18.8
Future minimum sublease rentals	0.5
Warehouse providers | Cost of Sales
Operating Leases, Rent Expense, Net [Abstract]
Minimum lease payments	0.8	0.8	2.0
Contingent rentals	$ 1.8	$ 1.7	$ 3.6