Financial Contracts Hedging Commodity Risk (Detail) - Cash Flow Hedging $ in Thousands	Jul. 13, 2019 USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Aggregate Notional Amount	$ 158,008
Wheat Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Aggregate Notional Amount	119,780
Soybean Oil Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Aggregate Notional Amount	16,135
Natural Gas Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Aggregate Notional Amount	14,236
Corn Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Aggregate Notional Amount	$ 7,857