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Assets and Liabilities Carried at Fair Value Measured on Recurring Basis (Detail) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Other assets |  |
Assets: |  |
Equity securities | $ 279 | $ 332
Other Current Assets |  |
Assets: |  |
Derivative financial instruments | 1,320 | 250
Accrued expenses and other current liabilities |  |
Liabilities: |  |
Derivative financial instruments | 14 | 957
Fair Value Measurements, Level 1 | Other assets |  |
Assets: |  |
Equity securities | 279 | 332
Fair Value Measurements, Level 2 | Other Current Assets |  |
Assets: |  |
Derivative financial instruments | 1,320 | 250
Fair Value Measurements, Level 2 | Accrued expenses and other current liabilities |  |
Liabilities: |  |
Derivative financial instruments | $ 14 | $ 957

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- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=99377092&loc=SL75136599-209740 + Details
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