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Acquisitions of Stork Holding B.V. - Acquired Intangible assets (Details) - Stork Holding B.V.	Mar. 01, 2016
Customer relationships
Acquired intangible assets
Useful lives	8 years
Trade names | Minimum
Acquired intangible assets
Useful lives	2 years
Trade names | Maximum
Acquired intangible assets
Useful lives	15 years

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+ References

No definition available.

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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