Lines of Credit and Financing Arrangements (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Discount fees in Selling, General and Administrative Expenses
Interest expense, net	$ 4.3	$ 4.3	$ 9.0	$ 8.4
Asset Securitization [Member]
Discount fees in Selling, General and Administrative Expenses
Interest expense, net	$ 0.3	$ 0.1	$ 0.6	$ 0.2