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Inventories - Additional Information (Detail) - USD ($) $ in Millions | Jun. 30, 2017 | Dec. 31, 2016
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Inventory Disclosure [Abstract] |  |
Inventory on consignment at customers' location | $ 6.2 | $ 5.0

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- Definition Gross amount of inventory owned by the entity but in the hands of a customer, typically a reseller. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.A.2.Q2 Response) -URI http://asc.fasb.org/extlink&oid=65893310&loc=d3e214044-122780 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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