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Basis of Presentation and Accounting Policies (Details) (Acquisition of Damilo Consulting [Member], EUR €) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2012	Dec. 31, 2011
Acquisition of Damilo Consulting [Member]
Subsequent Event [Line Items]
Subsequent event date	Apr. 26, 2012
Prior year annual revenue of to-be-acquired entity		€ 42.0

X

- Definition

The prior period annual revenue for an entity being acquired.

+ References

No definition available.

+ Details

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- Definition

Date of subsequent event occurrence or of indication that subsequent event occurred.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 855

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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