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Schedule of Derivative Instruments (Detail) - Subsequent Event - USD ($) $ in Thousands | Sep. 28, 2019 | Jun. 29, 2019 | Mar. 30, 2019 | Dec. 29, 2018 | Sep. 29, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 30, 2017 | Sep. 30, 2017
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative, Fair Value, Net | $ 627 | $ 350 | $ 33 | $ (298) | $ (588) | $ (774) | $ (864) | $ (1,370) | $ (1,218)
Mexico, Pesos |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | 148,468 | 142,947 | 137,944 | 125,328 | 90,443 | 95,500 | 90,812 | 88,558 | 76,192
United States of America, Dollars |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | $ 6,740 | $ 6,828 | $ 6,979 | $ 6,746 | $ 5,301 | $ 5,811 | $ 5,713 | $ 6,162 | $ 5,395

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