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v3.19.1

Derivatives (Textual) (Details) | 3 Months Ended
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Mar. 31, 2019
Derivative [Line Items] |
Maximum period in which contracts for the sale of grain to processors or other consumers extend (years) | 1 year

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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

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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. + Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration