Debt (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Debt, Long-term and Short-term, Combined Amount [Abstract]
Total debt	$ 1,485.1	$ 1,325.0
Less: short-term debt and current portion of long-term debt	(118.3)	(113.3)
Long-term debt	1,366.8	1,211.7
Senior Notes [Member] | Master note and security agreement [Member]
Debt, Long-term and Short-term, Combined Amount [Abstract]
Total debt	551.9	553.9
Term Loan [Member] | Term loan A-$450.0 million [Member]
Debt, Long-term and Short-term, Combined Amount [Abstract]
Total debt	438.8	444.4
Term Loan [Member] | Term loan B-$200.0 million [Member]
Debt, Long-term and Short-term, Combined Amount [Abstract]
Total debt	196.2	196.7
Term Loan [Member] | International term loan-$73.0 million [Member]
Debt, Long-term and Short-term, Combined Amount [Abstract]
Total debt	60.2	63.3
Revolving Credit [Member] | Revolving credit facility-$850.0 million [Member]
Debt, Long-term and Short-term, Combined Amount [Abstract]
Total debt	222.7	50.0
Revolving Credit [Member] | International revolving credit facility-$15.3 million [Member]
Debt, Long-term and Short-term, Combined Amount [Abstract]
Total debt	7.0	6.8
Other [Member] | Other [Member]
Debt, Long-term and Short-term, Combined Amount [Abstract]
Total debt	$ 8.3	$ 9.9