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Inventories - Additional Information (Detail) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jul. 01, 2017 | Jul. 02, 2016 | Jul. 01, 2017 | Jul. 02, 2016 | Dec. 31, 2016
Geographic Valuation Methodologies Of Inventory [Line Items] |  |  |  |  |
Effect of LIFO inventory liquidation on income | $ 0 | $ 0 | $ 0 | $ 0 |
Foreign and US Countries [Member] |  |  |  |  |
Geographic Valuation Methodologies Of Inventory [Line Items] |  |  |  |  |
Percentage of FIFO Inventory | 60.00% |  | 60.00% |  | 59.00%
United States [Member] |  |  |  |  |
Geographic Valuation Methodologies Of Inventory [Line Items] |  |  |  |  |
Percentage of FIFO Inventory | 32.00% |  | 32.00% |  |
Percentage of LIFO Inventory | 68.00% |  | 68.00% |  |

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