Gain or Loss Reclassified from Accumulated Other Comprehensive Income for Commodity Contracts (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 10, 2015	Oct. 04, 2014	Oct. 10, 2015	Oct. 04, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net of tax	$ 1,096	$ (1,145)	$ 3,934	$ 2,369
Commodity Contract
Accumulated Other Comprehensive Income (Loss) [Line Items]
Gross loss reclassified from AOCI into income			6,205	3,658
Tax benefit			(2,388)	(1,406)
Net of tax			$ 3,817	$ 2,252