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Derivatives (Details Textual) | 9 Months Ended
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Sep. 30, 2016
Derivatives (Textual) [Abstract] |
Maximum period in which contracts for the sale of grain to processors or other consumers extend (years) | 1 year

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- Definition Derivatives. + References No definition available. + Details
Name: | ande_DerivativesTextualAbstract
Namespace Prefix: | ande_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Maximum Period In Which Contracts For Sale Of Grain To Processors Or Other Consumers Extend + References No definition available. + Details
Name: | ande_MaximumPeriodInWhichContractsForSaleOfGrainToProcessorsOrOtherConsumersExtend
Namespace Prefix: | ande_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration