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Derivative Instruments - Derivative Instruments, Gain (Loss) (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 29, 2019 | Sep. 30, 2018 | Sep. 29, 2019 | Sep. 30, 2018
Not Designated as Hedging Instrument | Foreign Currency Gain (Loss) |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gains (losses) recognized in current operations | $ 469 | $ 299 | $ 535 | $ (366)

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 + Details
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