Derivatives Derivative Effect of Derivatives Not Designated As Hedges (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Derivative [Line Items]
Loss or (Gain) Recognized in Income on Derivatives Not Designated as Hedges	$ (1,030)	$ 6,641	$ 1,316	$ 8,327
Foreign Exchange Contract [Member] | Foreign Currency Gain (Loss) [Member]
Derivative [Line Items]
Loss or (Gain) Recognized in Income on Derivatives Not Designated as Hedges	(3,481)	6,130	(1,827)	9,276
Foreign Exchange Contract [Member] | Selling, General and Administrative Expenses [Member]
Derivative [Line Items]
Loss or (Gain) Recognized in Income on Derivatives Not Designated as Hedges	2,506	492	2,995	(989)
Corn options and futures [Member] | Sales [Member]
Derivative [Line Items]
Loss or (Gain) Recognized in Income on Derivatives Not Designated as Hedges	763	(18)	454	(40)
Corn options and futures [Member] | Cost of Sales [Member]
Derivative [Line Items]
Loss or (Gain) Recognized in Income on Derivatives Not Designated as Hedges	(818)	46	(306)	316
Soybean Meal [Member] | Sales [Member]
Derivative [Line Items]
Loss or (Gain) Recognized in Income on Derivatives Not Designated as Hedges	0	(9)	0	(281)
Soybean Oil Options [Member] | Sales [Member]
Derivative [Line Items]
Loss or (Gain) Recognized in Income on Derivatives Not Designated as Hedges	$ 0	$ 0	$ 0	$ 45