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Discontinued Operations - Schedule of Condensed Cash Flow Information (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Discontinued Operations And Disposal Groups [Abstract] |  |
Deferred income taxes | $ 2,461 | $ 88,356
Depreciation and amortization of property, plant and equipment |  | 1,607
Stock-based compensation |  | 955
Expenditures for property, plant and equipment |  | 273
Software and software development costs |  | $ 675

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- Definition Discontinued operations payments to acquire property plant and equipment. + References No definition available. + Details
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- Definition Disposal group including discontinued operation software and software development costs. + References No definition available. + Details
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- Definition Amount of deprecation and amortization expense attributable to property, plant and equipment and intangible assets of discontinued operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760 + Details
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