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Goodwill and Other Intangible Assets - Carrying Value of Goodwill (Details) (USD $) In Thousands, unless otherwise specified | 9 Months Ended |  |  |  |  | 3 Months Ended | 9 Months Ended
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Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 Energy Chemical Technologies [Member] | Sep. 30, 2014 Consumer and Industrial Chemical Technologies [Member] | Dec. 31, 2013 Consumer and Industrial Chemical Technologies [Member] | Sep. 30, 2014 Teledrift [Member] | Dec. 31, 2013 Teledrift [Member] | Sep. 30, 2014 Florida Chemical [Member] | Sep. 30, 2014 Florida Chemical [Member] | Sep. 30, 2014 Florida Chemical [Member] Energy Chemical Technologies [Member] | Sep. 30, 2014 Florida Chemical [Member] Consumer and Industrial Chemical Technologies [Member] | Sep. 30, 2014 Florida Chemical [Member] Teledrift [Member] | Sep. 30, 2014 EOGA [Member] | Sep. 30, 2014 EOGA [Member] Energy Chemical Technologies [Member] | Sep. 30, 2014 EOGA [Member] Consumer and Industrial Chemical Technologies [Member] | Sep. 30, 2014 EOGA [Member] Teledrift [Member] | Sep. 30, 2014 SiteLark [Member] | Sep. 30, 2014 SiteLark [Member] Energy Chemical Technologies [Member] | Sep. 30, 2014 SiteLark [Member] Consumer and Industrial Chemical Technologies [Member] | Sep. 30, 2014 SiteLark [Member] Teledrift [Member]
Goodwill [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at December 31, 2013 | $ 66,271 |  | $ 30,296 | $ 19,480 | $ 20,642 | $ 15,333 | $ 15,333 |  |  |  |  |  |  |  |  |  |  |  |  |
Final Florida Chemical acquisition adjustment | (1,162) | 0 |  |  |  |  |  | (1,200) | (1,162) | 0 | (1,162) | 0 |  |  |  |  |  |  |  |
Addition upon acquisition |  |  | 6,000 |  |  |  |  |  |  |  |  |  | 5,455 | 5,455 | 0 | 0 | 567 | 567 | 0 | 0
Balance at September 30, 2014 | $ 71,131 |  | $ 36,318 | $ 19,480 | $ 20,642 | $ 15,333 | $ 15,333 |  |  |  |  |  |  |  |  |  |  |  |  |

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- 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + 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 (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Details
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- Definition Amount of (increase) decrease to an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from the subsequent recognition of deferred tax assets. + 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 (c) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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