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Goodwill and Intangible Assets (Tables) | 9 Months Ended
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Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill [Table Text Block] | The following table represents the changes in goodwill by segment:
| Energy & Chemicals |  | Distribution & Storage |  | BioMedical |  | Total
Balance at December 31, 2012 | $ | 83,215 |  |  | $ | 158,789 |  |  | $ | 156,937 |  |  | $ | 398,941 |
Foreign currency translation adjustments and other | — |  |  | 580 |  |  | (1,301 | ) |  | (721 | )
Goodwill acquired during the year | — |  |  | 879 |  |  | — |  |  | 879 |
Balance at September 30, 2013 | $ | 83,215 |  |  | $ | 160,248 |  |  | $ | 155,636 |  |  | $ | 399,099 |
Schedule Of Finite Lived And Indefinite Lived Intangible Assets [Table Text Block] | The following table displays the gross carrying amount and accumulated amortization for finite-lived intangible assets and indefinite-lived intangible assets (exclusive of goodwill):
| September 30, 2013 |  | December 31, 2012
| Gross Carrying Amount |  | Accumulated Amortization |  | Gross Carrying Amount |  | Accumulated Amortization
Finite-lived intangible assets: |  |  |  |  |  |  |
Unpatented technology | $ | 43,081 |  |  | $ | (11,185 | ) |  | $ | 45,078 |  |  | $ | (11,286 | )
Patents | 7,908 |  |  | (5,217 | ) |  | 9,880 |  |  | (6,664 | )
Product names | 9,250 |  |  | (4,063 | ) |  | 9,068 |  |  | (2,712 | )
Customer relations | 159,058 |  |  | (70,167 | ) |  | 158,005 |  |  | (59,668 | )
Total finite-lived intangible assets | $ | 219,297 |  |  | $ | (90,632 | ) |  | $ | 222,031 |  |  | $ | (80,330 | )
Indefinite-lived intangible assets: |  |  |  |  |  |  |
Trademarks and trade names | $ | 47,931 |  |  |  |  | $ | 47,762 |  |  |
Total indefinite-lived intangible assets | $ | 47,931 |  |  |  |  | $ | 47,762 |  |  |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] | The Company estimates amortization expense to be recognized during the next five years as follows:
For the Year Ending December 31, |
2013 | $ | 19,200 |
2014 | 17,800 |
2015 | 16,200 |
2016 | 14,300 |
2017 | 13,400 |

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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + 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=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13854-109267 + Details
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