Debt.

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Namespace Prefix:	ande
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Long term debt maturities in year four.

+ Details

Name:	ande_LongTermDebtMaturitiesInYearFour
Namespace Prefix:	ande
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Long term debt maturities in year three.

+ Details

Name:	ande_LongTermDebtMaturitiesInYearThree
Namespace Prefix:	ande
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Long term debt maturities in year two.

+ Details

Name:	ande_LongTermDebtMaturitiesInYearTwo
Namespace Prefix:	ande
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Short term line of credit facility amount outstanding.

+ Details

Name:	ande_ShortTermLineOfCreditFacilityAmountOutstanding
Namespace Prefix:	ande
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow from the payment of uncollateralized debt obligation (where debt is not backed by the pledge of collateral).

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 18

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 20

-Subparagraph b

+ Details

Name:	us-gaap_RepaymentsOfUnsecuredDebt
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

+ Details

Name:	us-gaap_SeniorNotes
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of the portion of long-term notes having the highest claim on the assets of the issuer in case of bankruptcy or liquidation, due within one year or the normal operating cycle, if longer. Senior note holders are paid off in full before any payments are made to debt holders having a lesser priority of repayment.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

+ Details

Name:	us-gaap_SeniorNotesCurrent
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Debt (DetailsTextuals) (USD $)	3 Months Ended	9 Months Ended
Debt (DetailsTextuals) (USD $)	Sep. 30, 2011	Sep. 30, 2011	Sep. 30, 2010	Jun. 30, 2011	Mar. 31, 2011	Feb. 26, 2010
Debt (Textuals) [Abstract]
Total borrowing capacity under lines of credit	$ 1,100,000,000	$ 1,100,000,000
Short-term line of credit facility amount outstanding	989,200,000	989,200,000
Senior Guaranteed Notes						92,000,000
Series A due in 2011				17,000,000	20,000,000	17,000,000
Series A-1- Due on 2012						25,000,000
Series A-2- Due on 2013						25,000,000
Series A-3- Due on 2014						25,000,000
Long-term debt, total	26,500,000	66,163,000	34,973,000
Long-term private placement debt [Member]
Debt (Textuals) [Abstract]
Series A-1- Due on 2012				$ 25,000,000