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Summary of Carrying Amount and Fair Value of Financial Instruments (Phantoms) (Detail) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015
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Debt Disclosure [Abstract] |  |
Long term debt and capital lease obligations | $ 0.5 | $ 0.4

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- References No definition available. + Details
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- Definition Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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