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Inventories - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Jan. 02, 2016
Geographic Valuation Methodologies Of Inventory [Line Items]      
Effect of LIFO inventory liquidation on income $ 0 $ 0 $ 0
Foreign and US Countries [Member]      
Geographic Valuation Methodologies Of Inventory [Line Items]      
Percentage of FIFO Inventory 61.00% 59.00%  
United States [Member]      
Geographic Valuation Methodologies Of Inventory [Line Items]      
Percentage of FIFO Inventory 33.00%    
Percentage of LIFO Inventory 67.00%