The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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- Definition

The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Debt (Details) In Millions, unless otherwise specified	Mar. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Mar. 31, 2012 Revolving Credit Facility Due 2014 [Member] USD ($)	Dec. 31, 2011 Revolving Credit Facility Due 2014 [Member] USD ($)	Mar. 31, 2012 Series A Floating Rate Notes Due 2012 [Member] USD ($)	Dec. 31, 2011 Series A Floating Rate Notes Due 2012 [Member] USD ($)	Mar. 31, 2012 Series B Floating Rate Notes Due 2015 [Member] USD ($)	Dec. 31, 2011 Series B Floating Rate Notes Due 2015 [Member] USD ($)	Mar. 31, 2012 EURO Note A Due 2013 [Member] USD ($)	Mar. 31, 2012 EURO Note A Due 2013 [Member] EUR (€)	Dec. 31, 2011 EURO Note A Due 2013 [Member] USD ($)	Mar. 31, 2012 EURO Note B Due 2016 [Member] USD ($)	Dec. 31, 2011 EURO Note B Due 2016 [Member] USD ($)	Mar. 31, 2012 Convertible Debt Due 2047 [Member] USD ($)	Dec. 31, 2011 Convertible Debt Due 2047 [Member] USD ($)	Mar. 31, 2012 Term Loan Due 2014 [Member] USD ($)	Dec. 31, 2011 Term Loan Due 2014 [Member] USD ($)	Mar. 31, 2012 Capital Leases [Member] USD ($)	Dec. 31, 2011 Capital Leases [Member] USD ($)
Debt Instrument [Line Items]
Long-term debt	$ 289.5	$ 349.4	$ 35.4	$ 6.4	$ 50.0	$ 50.0	$ 25.0	$ 25.0	$ 27.1	€ 20.4	$ 26.3	$ 81.3	$ 79.0	$ 161.5	$ 161.5	$ 0.2	$ 0.2
Capital leases																		0.9	1.0
Long-term debt, excluding current portion	294.9	299.3
Notes payable and other current debt	(86.5)	(50.1)
Line of credit facility, current borrowing capacity			225.0
Line of credit facility classified as short-term			9.3
Line of credit facility, classified as long-term			$ 26.1