Derivatives (Details 2) In Millions, unless otherwise specified	Mar. 31, 2012 Brazilian Real [Member] BRL	Dec. 31, 2011 Brazilian Real [Member] BRL	Mar. 31, 2012 U.S Dollars [Member] USD ($)	Dec. 31, 2011 U.S Dollars [Member] USD ($)	Mar. 31, 2012 Mexican Peso [Member] MXN	Dec. 31, 2011 Mexican Peso [Member] MXN	Dec. 31, 2011 Euros [Member] EUR (€)	Mar. 31, 2012 British Pounds [Member] GBP (£)	Dec. 31, 2011 British Pounds [Member] GBP (£)	Mar. 31, 2012 Indian Rupees [Member] INR
Outstanding foreign currency forward contracts not designated as cash flow hedges
Notional amounts	4.4	4.5	$ 0.8	$ 2.0	250.0	172.0	€ 7.8	£ 6.0	£ 6.5	195.0

Aggregate notional amount of all derivatives not designated as a hedging instrument. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

Name:	us-gaap_NotionalAmountOfOtherDerivativesNotDesignatedAsHedgingInstruments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant