Summary of Long-Lived Assets by Geographic Location (Detail) - USD ($) $ in Thousands |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|---|
| Segment Reporting Information [Line Items] | |||
| Property, plant, and equipment, net | $ 3,674 | $ 4,478 | $ 3,727 |
| United States | |||
| Segment Reporting Information [Line Items] | |||
| Property, plant, and equipment, net | 3,347 | 4,175 | 3,401 |
| International | |||
| Segment Reporting Information [Line Items] | |||
| Property, plant, and equipment, net | $ 327 | $ 302 | $ 326 |
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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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