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Notes Payable Line of Credit Due 2014 (Details) (Line of Credit 2011 [Member], USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012 banks
Line of Credit 2011 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 160
Line of Credit, Number of Banks in Agreement	7
Line of Credit, Interest Rate, Floating, Applicable Margin	2.00%
Line of Credit, Interest Rate, Floating, Adjusted LIBOR	3.00%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.50%
Line of Credit Facility, Amount Outstanding	$ 0

X

- Definition

The variable interest rate on a revolving line of credit that is equal to an alternate base rate (as defined in the drecit agreement) plus the adjusted LIBOR rate that is equal to this value.

+ References

No definition available.

+ Details

Name:	ael_LineOfCreditInterestRateFloatingAdjustedLibor
Namespace Prefix:	ael_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The variable interest rate on a revolving line of credit that is equal to an alternate base rate (as defined in the credit agreement) plus the applicable margin that is equal to this value.

+ References

No definition available.

+ Details

Name:	ael_LineOfCreditInterestRateFloatingApplicableMargin
Namespace Prefix:	ael_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of banks listed in the revolving line of credit agreement.

+ References

No definition available.

+ Details

Name:	ael_LineOfCreditNumberOfBanksInAgreement
Namespace Prefix:	ael_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount borrowed under the credit facility as of the balance sheet date.

+ References

Reference 1: 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_LineOfCreditFacilityAmountOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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

X

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration