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Commitments and Contingencies (Textual) (Details) | Dec. 31, 2020 USD ($)
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Commitments and Contingencies Disclosure [Abstract] |
Industrial Revenue Bonds, Unrecognized | $ 1,000,000.0

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- Definition Industrial Revenue Bonds, Unrecognized + References No definition available. + Details
Name: | ande_IndustrialRevenueBondsUnrecognized
Namespace Prefix: | ande_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration