v2.4.1.9

Business Acquisition (Details) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended	0 Months Ended	12 Months Ended
	Mar. 31, 2015 business	Oct. 07, 2014	Dec. 31, 2014
Business Acquisition [Line Items]
Number of business acquisitions	0us-gaap_NumberOfBusinessesAcquired
Auburn Bean and Grain
Business Acquisition [Line Items]
Percentage of shares outstanding acquired		100.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired / us-gaap_BusinessAcquisitionAxis = ande_AuburnBeanandGrainMember
Number of transactions		2ande_BusinessAcquisitionNumberofTransactions / us-gaap_BusinessAcquisitionAxis = ande_AuburnBeanandGrainMember
Cash payments to acquire businesses		$ 5.0us-gaap_PaymentsToAcquireBusinessesGross / us-gaap_BusinessAcquisitionAxis = ande_AuburnBeanandGrainMember
Shares issued in connection with business acquisition, adjustment to working capital, shares		80ande_BusinessAcquisitionEquityInterestIssuedorIssuableNumberofSharesAdjustmenttoWorkingCapital / us-gaap_BusinessAcquisitionAxis = ande_AuburnBeanandGrainMember
Shares issued in connection with business acquisition, adjustment to working capital, value		4.5ande_BusinessAcquisitionEquityInterestIssuedorIssuableAdjustmenttoWorkingCapitalValueAssigned / us-gaap_BusinessAcquisitionAxis = ande_AuburnBeanandGrainMember
Cash paid to acquire additional facilities		20.4ande_BusinessCombinationSeparatelyRecognizedTransactionsPaymentstoAcquireAdditionalAssets / us-gaap_BusinessAcquisitionAxis = ande_AuburnBeanandGrainMember
Additional grain storage capacity acquired (bushels)		18,100,000ande_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedGrainStorageCapacity / us-gaap_BusinessAcquisitionAxis = ande_AuburnBeanandGrainMember
Dry grain storage acquired (tons)		16,000ande_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedGrainStorageCapacityDry / us-gaap_BusinessAcquisitionAxis = ande_AuburnBeanandGrainMember
Grain storage acquired, liquid nutrient capacity (gallons)		3,700,000ande_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedGrainStorageCapacityLiquidNutrient / us-gaap_BusinessAcquisitionAxis = ande_AuburnBeanandGrainMember
Purchase price		60.9us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = ande_AuburnBeanandGrainMember
Series of business acquisitions
Business Acquisition [Line Items]
Purchase price			7.2us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = us-gaap_SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember
Grain operations | Auburn Bean and Grain
Business Acquisition [Line Items]
Number of locations acquired		6ande_NumberofLocationsAcquired / us-gaap_BusinessAcquisitionAxis = ande_AuburnBeanandGrainMember / us-gaap_PropertyPlantAndEquipmentByTypeAxis = ande_GrainOperationsMember
Agronomy operations | Auburn Bean and Grain
Business Acquisition [Line Items]
Number of locations acquired		4ande_NumberofLocationsAcquired / us-gaap_BusinessAcquisitionAxis = ande_AuburnBeanandGrainMember / us-gaap_PropertyPlantAndEquipmentByTypeAxis = ande_AgronomyOperationsMember
Number of shares issued as part of acquisition		637us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued / us-gaap_BusinessAcquisitionAxis = ande_AuburnBeanandGrainMember / us-gaap_PropertyPlantAndEquipmentByTypeAxis = ande_AgronomyOperationsMember
Shares issued in connection with business acquisition, value		$ 35.5us-gaap_BusinessAcquisitionEquityInterestIssuedOrIssuableValueAssigned / us-gaap_BusinessAcquisitionAxis = ande_AuburnBeanandGrainMember / us-gaap_PropertyPlantAndEquipmentByTypeAxis = ande_AgronomyOperationsMember

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Number of Locations Acquired

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Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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The number of businesses acquired by the entity during the period.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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-Name Accounting Standards Codification

-Glossary Investing Activities

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