No definition available.

Name:	ande_YearEntered
Namespace Prefix:	ande_
Data Type:	us-types:dateStringItemType
Balance Type:	na
Period Type:	duration

Year of maturity.

No definition available.

Name:	ande_YearOfMaturity
Namespace Prefix:	ande_
Data Type:	us-types:dateStringItemType
Balance Type:	na
Period Type:	duration

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

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

Name:	invest_DerivativeNotionalAmount
Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

Description of the hedged item related to the derivative. Includes the type of instrument hedged, contract amount, term, and so forth.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579240-113959

Name:	us-gaap_DerivativeDescriptionOfHedgedItem
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Data Type:	xbrli:stringItemType
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Period Type:	duration

Fixed interest rate related to the interest rate derivative.

No definition available.

Name:	us-gaap_DerivativeFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Name:	us-gaap_DerivativeInstrumentRiskAxis=ande_LongtermInterestRateCap2012Member
Namespace Prefix:
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Name:	us-gaap_DerivativeInstrumentRiskAxis=ande_LongtermInterestRateCollar2013Member
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_DerivativeInstrumentRiskAxis=ande_LongtermInterestRateSwap2005Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_DerivativeInstrumentRiskAxis=ande_LongtermInterestRateSwap2006Member
Namespace Prefix:
Data Type:	na
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Name:	us-gaap_DerivativeInstrumentRiskAxis=ande_LongtermInterestRateSwap2012Member
Namespace Prefix:
Data Type:	na
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