Debt and Credit Facilities (Details Textual) (USD $) In Millions, unless otherwise specified	6 Months Ended			6 Months Ended		3 Months Ended	6 Months Ended						6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011	Jun. 30, 2012 Term Loan A Facility [Member]	Jun. 30, 2012 Term Loan B Facility [Member]	Jun. 30, 2012 Term Loans A and B [Member]	Jun. 30, 2012 Term Loans A and B [Member]	Jun. 30, 2012 5.625 % Senior Notes due July 2013 [Member]	Dec. 31, 2011 5.625 % Senior Notes due July 2013 [Member]	Jun. 30, 2012 Revolving Credit Facility [Member]	Jun. 30, 2012 Multicurrency term B facility tranche [Member]	Dec. 31, 2011 Multicurrency term B facility tranche [Member]	Jun. 30, 2012 Dollar component [Member] Term Loan B Facility [Member]	Jun. 30, 2012 Euro component [Member] Term Loan B Facility [Member]
Debt and Credit Facilities (Textual) [Abstract]
Senior notes maturity date								Jul. 15, 2013
Payments of long-term debt	$ 61.9	$ 5.7		$ 55.0	$ 5.0
Unamortized discount						28.0	28.0	0.2	0.3		24.0	26.5
Line of Credit Facility										700
Percentage of Principal Amount of Notes Sold to Investor													98.00%	97.00%
Lender fees							48
Non-lender fees							51
Amortization expenses related to the debt instruments						6	12
Credit facility amount outstanding	50.0		34.5								1,100.7	1,118.8
Additional Debt and Credit Facilities (Textual) [Abstract]
Short-term borrowings	$ 50.0		$ 34.5