Derivative Instruments And Hedging Activities (Details) (USD $) In Millions	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2011
Foreign currency exchange forward contract remaining terms in months, minimum	one	one
Foreign currency exchange forward contract remaining terms in months, maximum	twelve	twelve
Gains and losses recognized on foreign currency cash flow hedge ineffectiveness	$ 0	$ 0
Derivatives Designated As Hedging Instruments [Member]
Notional amount of derivative instruments	44.5	44.5
Derivatives Not Designated As Hedging Instruments [Member]
Notional amount of derivative instruments	$ 6.0	$ 6.0

The high end of the range of time remaining until maturity when a range is presented for a group of derivatives.

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- Definition

The low end of the range of time remaining until maturity when a range is presented for a group of derivatives.

+ Details

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- Definition

The net gain (loss) during the reporting period due to ineffectiveness in foreign currency cash flow hedges. Recognized in earnings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-Subparagraph b(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5624171-113959

+ Details

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- Definition

Aggregate notional amount of all derivatives. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument.

+ References

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

+ Details

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