Inventories - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014	Jan. 03, 2015
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	56.00%		56.00%		58.00%
United States [Member]
Geographic Valuation Methodologies Of Inventory [Line Items]
Percentage of FIFO Inventory	29.00%		29.00%
Percentage of LIFO Inventory	71.00%		71.00%