Financial Contracts Hedging Commodity and Interest Rate Risk (Detail) - Cash Flow Hedging	Jan. 02, 2016 USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of interest rate swap	$ 206,048,000
Wheat Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of interest rate swap	175,898,000
Soybean Oil Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of interest rate swap	20,729,000
Natural Gas Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount of interest rate swap	$ 9,421,000