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Segment and Geographic Information Goodwill by Segment (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Goodwill [Line Items] |  |  |
Goodwill | $ 398,905 | $ 398,941 | $ 288,770
Foreign currency translation adjustments and other | (344) | 408 |
Goodwill acquired during the year | 308 | 109,763 |
Energy & Chemicals [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill | 83,215 | 83,215 | 83,215
Foreign currency translation adjustments and other | 0 | 0 |
Goodwill acquired during the year | 0 | 0 |
Distribution & Storage [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill | 160,054 | 158,789 | 158,381
Foreign currency translation adjustments and other | 957 | 408 |
Goodwill acquired during the year | 308 | 0 |
BioMedical [Member] |  |  |
Goodwill [Line Items] |  |  |
Goodwill | 155,636 | 156,937 | 47,174
Foreign currency translation adjustments and other | (1,301) | 0 |
Goodwill acquired during the year | $ 0 | $ 109,763 |

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- Definition Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments 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 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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