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Fair Values of Financial Instruments - Deferred Compensation Plan Commodity Hedging Agreements and Acquisition Related Contingent Consideration (Detail) - USD ($) $ in Thousands	Jan. 03, 2016	Dec. 28, 2014	Dec. 29, 2013
Assets
Commodity hedging agreements	$ 3	$ 0
Liabilities
Commodity hedging agreements	3,442	0
Level 1 [Member]
Assets
Deferred compensation plan assets	20,755	18,580
Liabilities
Deferred compensation plan liabilities	20,755	18,580
Level 2 [Member] \| Commodity Contract [Member]
Assets
Commodity hedging agreements	3	0
Liabilities
Commodity hedging agreements	3,442	0
Level 3 [Member]
Liabilities
Contingent consideration liability	$ 136,570	$ 46,850	$ 0