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Item represents the cost of shares purchased during the reporting period by the NMO Rabbi Trust.

No definition available.

Name:	ael_DeferredCompensationPlansCostOfSharesPurchasedNmoRabbiTrust
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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

Item represents the cost of shares purchased during the reporting period with funds held in the Officer Rabbi Trust.

No definition available.

Name:	ael_DeferredCompensationPlansCostOfSharesPurchasedOfficerRabbiTrust
Namespace Prefix:	ael_
Data Type:	xbrli:monetaryItemType
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Item represents the number of shares in the NMO Deferred Compensation Plan that have vested and remain undistributed at the end of the reporting period.

No definition available.

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Item represents the number of shares that were distributed to participants of the NMO Deferred Compensation Plan held in the NMO Rabbi Trust.

No definition available.

Name:	ael_DeferredCompensationPlansSharesDistributedNmoRabbiTrust
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Item represents the number of shares held in the NMO Rabbi Trust as of the end of the reporting period

No definition available.

Name:	ael_DeferredCompensationPlansSharesHeldNmoRabbiTrust
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Item represents the number of shares held in the Officer Rabbi Trust as of the end of the reporting period.

No definition available.

Name:	ael_DeferredCompensationPlansSharesHeldOfficerRabbiTrust
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Item represents the number of shares of our common stock that were purchased during the reporting period by the NMO Rabbi Trust.

No definition available.

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Item represents the number of shares of our common stock that were purchased during the reporting period with funds held in the Officer Rabbi Trust.

No definition available.

Name:	ael_DeferredCompensationPlansSharesOfCommonStockPurchasedOfficerRabbiTrust
Namespace Prefix:	ael_
Data Type:	xbrli:sharesItemType
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Item represents the number of shares earned by individuals under deferred compensation plans that have been reserved for issuance at a future date.

No definition available.

Name:	ael_DeferredCompensationSharesEarnedAndReservedForFutureIssuance
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Item represents the maximum amount that can be deferred and contributed to the defined contribution plan ($16,500) based upon IRS limitations for 2011, 2010, and 2009.

No definition available.

Name:	ael_DefinedContributionPlanMaximumAnnualContribution
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Amount represents the amount loaned by the employer to the ESOP to purchase shares of common stock held by the ESOP for allocation to the participants. This amount is eliminated in the consolidation.

No definition available.

Name:	ael_EmployeeStockOwnershipPlanEmployerLoanAmount
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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Employee Stock Ownership Plan, Loan Amount Outstanding

No definition available.

Name:	ael_EmployeeStockOwnershipPlanLoanAmountOutstanding
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Item represents the principal payments that are due to the employer every five years as part of the repayment terms of the ESOP loan.

No definition available.

Name:	ael_EmployeeStockOwnershipPlanLoanTermsPrincipalPayments
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Period Type:	duration

Item represents the original number of share purchased by the ESOP through funding by an employer loan to the ESOP.

No definition available.

Name:	ael_EmployeeStockOwnershipPlanSharePurchaseWithEsopEmployerLoan
Namespace Prefix:	ael_
Data Type:	xbrli:sharesItemType
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Period Type:	duration

Percentage employee becomes vested in the employer contributions to the ESOP once the vesting period requirements have been met.

No definition available.

Name:	ael_EmployeeStockOwnershipPlanVestingPercentage
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Item represents the number of years of serivce that must be completed before an employee vests in employer contributions to the employee stock ownership plan.

No definition available.

Name:	ael_EmployeeStockOwnershipPlanVestingPeriod
Namespace Prefix:	ael_
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Balance Type:	na
Period Type:	duration

Item represents the age when participants automatically become fully vested in shares issued under the specified retirement and share-based compensation plan.

No definition available.

Name:	ael_RetirementAndShareBasedCompensationPlansParticipantAgeForFullVesting
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Item represents the remaining share available for grant in the future under terms of the plan.

No definition available.

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Period Type:	instant

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)(i)

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

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-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64

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-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.F)

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Balance Type:	debit
Period Type:	duration

The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

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

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 6, 7

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-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph 64, 65

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 710

-SubTopic 10

-Section 30

-Paragraph 1

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Balance Type:	debit
Period Type:	duration

The minimum period that the individual is required to perform services in order to be fully vested under the deferred compensation arrangement.

Name:	us-gaap_DeferredCompensationArrangementWithIndividualRequisiteServicePeriod
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The number of shares issued pursuant to the terms of the deferred compensation plan as of the balance sheet date.

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Data Type:	xbrli:sharesItemType
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Aggregate carrying value as of the balance sheet date of the liabilities for deferred compensation arrangements. Represents currently earned compensation under cash arrangements (such as a profit-sharing plan, rabbi trust, and employee contract--excluding equity-based arrangements) that is not actually paid until a later date.

No definition available.

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Balance Type:	credit
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The increase in the fair value of plan assets from contributions made by the employer.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph b

-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 FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)(3)

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The amount of plan compensation cost recognized during the period.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 40

-Section 50

-Paragraph 1

-Subparagraph (c)

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-Publisher AICPA

-Name Statement of Position (SOP)

-Number 93-6

-Paragraph 53

-Subparagraph c

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Sets forth the terms of the arrangement, including interest rate and repayment requirements, in which the employer lends funds to the ESOP. The loan amount is not required to be externally reported.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 40

-Section 25

-Paragraph 9

-Subparagraph (d)

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Employer Loan

-URI http://asc.fasb.org/extlink&oid=6511570

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

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 93-6

-Paragraph 24, 27

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The shares that, although not legally released, will be released by a future scheduled and committed debt service payment and will be allocated to employees for service rendered in the current accounting period. The ESOP documents typically define the period of service to which the shares relate. ESOP shares are released to compensate employees directly, to settle employer liabilities for other employee benefits, and to replace dividends on allocated shares that are used for debt service.

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

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-Topic 718

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-Publisher AICPA

-Name Statement of Position (SOP)

-Number 93-6

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-Subparagraph d

-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.

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Shares contributed to the ESOP that have not yet been released, committed to be released, or allocated to participant accounts. Suspense shares generally collateralize ESOP debt.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

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-Name Statement of Position (SOP)

-Number 93-6

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The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph i

-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 FASB

-Name Accounting Standards Codification

-Topic 230

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-Section 45

-Paragraph 14

-Subparagraph (a)

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 19

-Subparagraph a

-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 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 18

-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 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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Net number of share options (or share units) granted during the period.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph d(1)

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of fully vested and expected to vest options that are exercisable.

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Description of pertinent provisions of equity-based compensation awards that have actual or potential impact upon the company's financial statements.

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The amount of expense reported during the period resulting from the transaction in which equity securities were issued to pay for goods or nonemployee services.

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Tax benefits realized from the exercise of stock options resulting in reductions in the entity's income taxes, which increases net cash provided by operating activities.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 20

-Section 55

-Paragraph 20

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Fair value of unearned shares for all classes of common stock and nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by an employee stock ownership plan (ESOP). Includes the sale of shares or the issuance treasury shares to an ESOP.

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

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 93-6

-Paragraph 13

-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 FASB

-Name Accounting Standards Codification

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