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Derivatives (Fair Value) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 30, 2017
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	$ 1,052	$ 4,346
Liability Derivatives Fair Value	2,765	2,326
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	282	3,418
Liability Derivatives Fair Value	472	24
Designated as Hedging Instrument [Member] | Corn Option [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	282	3,418
Designated as Hedging Instrument [Member] | Corn Option [Member] | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives Fair Value	278	0
Designated as Hedging Instrument [Member] | Natural Gas Swap [Member] | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives Fair Value	0	24
Designated as Hedging Instrument [Member] | Soybean Meal [Member] | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives Fair Value	194	0
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	770	928
Liability Derivatives Fair Value	2,293	2,302
Not Designated as Hedging Instrument [Member] | Corn Option [Member] | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives Fair Value	316	14
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	585	332
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Accrued Expenses [Member]
Derivatives, Fair Value [Line Items]
Liability Derivatives Fair Value	1,977	2,288
Not Designated as Hedging Instrument [Member] | Corn options and futures [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Asset Derivatives Fair Value	$ 185	$ 596

X

- Definition

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (a),(c)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226000-175313

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=82924980&loc=SL51823488-111719

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X

- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=82924980&loc=SL51823488-111719

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (a),(c)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624163-113959

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=82849420&loc=SL20226000-175313

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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