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Goodwill and Intangible Assets Goodwill (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Goodwill [Line Items]
Share Price	$ 19.21	$ 34.20
Goodwill [Roll Forward]
Beginning Balance, Goodwill	$ 405,522
Goodwill, Translation and Purchase Accounting Adjustments	(2,002)
Goodwill, Acquired During Period	10,601
Ending Balance, Goodwill	414,121
Energy & Chemicals [Member]
Goodwill [Roll Forward]
Beginning Balance, Goodwill	92,638
Goodwill, Translation and Purchase Accounting Adjustments	(359)
Goodwill, Acquired During Period	0
Ending Balance, Goodwill	92,279
Distribution & Storage [Member]
Goodwill [Roll Forward]
Beginning Balance, Goodwill	157,248
Goodwill, Translation and Purchase Accounting Adjustments	(1,643)
Goodwill, Acquired During Period	10,601
Ending Balance, Goodwill	166,206
BioMedical [Member]
Goodwill [Roll Forward]
Beginning Balance, Goodwill	155,636
Goodwill, Translation and Purchase Accounting Adjustments	0
Goodwill, Acquired During Period	0
Ending Balance, Goodwill	$ 155,636
Minimum [Member]
Goodwill [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	10.00%
Maximum [Member]
Goodwill [Line Items]
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	20.00%

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 350



-SubTopic 20



-Section 50



-Paragraph 1



-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267



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+ References

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+ References

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



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-Name Accounting Standards Codification



-Topic 350



-SubTopic 20



-Section 50



-Paragraph 1



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