Derivatives (Textual) (Details) $ in Millions	12 Months Ended
Dec. 31, 2018 USD ($) derivative
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Maximum period in which contracts for the sale of grain to processors or other consumers extend	1 year
Cash flow hedge \| Designated as Hedging Instrument \| Interest rate contract
Derivative [Line Items]
Number of derivatives outstanding \| derivative	2
Cash flow hedge \| March 2021 \| Designated as Hedging Instrument \| Interest rate contract
Derivative [Line Items]
Derivative notional amount	$ 40
Cash flow hedge \| August 2021 \| Designated as Hedging Instrument \| Interest rate contract
Derivative [Line Items]
Derivative notional amount	$ 25

Maximum Period In Which Contracts For Sale Of Grain To Processors Or Other Consumers Extend

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- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

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- References

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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

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- Definition

The number of derivative instruments of a particular group held by the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5579245-113959

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