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Summary of Significant Accounting Policies - Goodwill Relates to Business Acquisitions (Detail) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Goodwill [Line Items] |  |
Goodwill | $ 1,724 | $ 1,724
Chemical [Member] |  |
Goodwill [Line Items] |  |
Goodwill | 1,621 | 1,621
Climate Control [Member] |  |
Goodwill [Line Items] |  |
Goodwill | $ 103 | $ 103

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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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- Details
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- Details
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