Derivative Financial Instruments - Summary of Fair Values and Classification in Consolidated Balance Sheets of Derivative Instruments (Detail) - USD ($) $ in Thousands	Jan. 01, 2017	Jan. 03, 2016
Assets:
Total assets	$ 1,289	$ 3
Liabilities:
Total liabilities		3,442
Commodity Contract [Member] | Not Designated as Hedging Instruments [Member] | Prepaid Expenses and Other Current Assets [Member]
Assets:
Total assets	$ 1,289
Commodity Contract [Member] | Not Designated as Hedging Instruments [Member] | Other Assets [Member]
Assets:
Total assets		3
Commodity Contract [Member] | Not Designated as Hedging Instruments [Member] | Other Liabilities [Member]
Liabilities:
Total liabilities		$ 3,442