Retirement and Share-based Compensation Plans (Narrative) (Details) (USD $)	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined contribution plan, employee maximum annual contribution	$ 17,500	$ 17,000	$ 16,500
Defined contribution plan, employer plan contributions	400,000	400,000	300,000
Options outstanding, intrinsic value	61,700,000
Options vested and expected to vest, intrinsic value	58,800,000
Proceeds from stock options exercised	31,800,000	5,700,000	4,700,000
Tax benefit from stock options exercised	1,000,000	100,000	100,000
ESOP, requisite service period	6 months
ESOP, vesting percentage	100.00%
ESOP, vesting period	2 years
ESOP, employer loan amount	7,000,000
ESOP, shares purchased with ESOP employer loan	650,000
ESOP, debt structure, employer loan, duration	20 years
ESOP, loan terms, required principal payments	1,800,000
ESOP, loan amount outstanding	200,000
ESOP, number of shares committed for release	127,867	54,971
ESOP, compensation expense	3,500,000	1,100,000	1,300,000
ESOP, number of unreleased shares	58,618	239,799
ESOP, fair value of unreleased shares	1,500,000	2,900,000
Short-Term Performance Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Participant age for full vesting	65 years
Requisite service period	10 years
Shares issued in period	33,489	51,810	24,497
Share-based compensation expense	400,000	500,000	100,000
Short-Term Performance Incentive Plan [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued in period	23,681	37,369	16,819
2009 Employee Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Participant age for full vesting	65 years
Requisite service period	10 years
Shares issued in period	26,087
Share-based compensation expense	200,000
Number of shares authorized	2,500,000
Number of shares available for future grant	1,563,907
Duration of award	10 years
2009 Employee Incentive Plan [Member] \| Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued in period	20,889
2009 Employee Incentive Plan [Member] \| Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Shares issued in period	78,260
Duration used to measure performance and threshold goals	3 years
Share-based compensation expense	300,000
2009 Employee Incentive Plan [Member] \| Restricted Stock Units [Member] \| Threshold Goals, Vesting Percentage [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	50.00%
2009 Employee Incentive Plan [Member] \| Restricted Stock Units [Member] \| Target Performance Goals, Vesting Percentage [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	100.00%
2013 Director Equity And Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	1 year
Shares issued in period	40,000
Share-based compensation expense	400,000
Number of shares authorized	250,000
Number of shares available for future grant	210,000
Deferred Compensation Plans, Certain Officers, Directors and Consultants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	200,000	200,000	300,000
Shares earned and reserved for future issuance	356,897	354,923
Deferred Compensation Plans, Officer Rabbi Trust [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred compensation liability	3,100,000	1,400,000
Shares of common stock purchased		0	1,250
Cost of shares purchased			10,000
Shares held	103,551	104,551
Deferred Compensation Plans, NMO Deferred Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	9 years
Undistributed vested shares	892,688	1,142,332
Deferred Compensation Plans, NMO Trust [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock purchased		0	81,745
Cost of shares purchased			900,000
Shares held	892,688	1,142,332
Shares distributed	249,644	489,216	306,032
Stock Option Plans, 1996 Stock Option Plan, 2000 Employee Stock Option Plan, 2000 Directors Stock Option Plan, 2011 Directors Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	3,475,000
Duration of award	10 years
Stock Option Plans, 1996 Stock Option Plan, 2000 Employee Stock Option Plan, 2000 Directors Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	6 months
Stock Option Plans, 2011 Directors Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Number of shares available for future grant	18,000
Stock Option Plans, All Stock Option Plans For Officers, Directors And Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercised in period, total intrinsic value	10,400,000	900,000	300,000
Stock Option Plans, Independent Insurance Agent Stock Option Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	6 months
Number of shares authorized	8,000,000
Duration of award	7 years
Options, grants in period, net of forfeitures	1,284,950	1,125,100	1,422,050
Commission expense	$ 8,100,000	$ 3,900,000	$ 6,800,000
March 2010 Option Grant [Member] \| 2009 Employee Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Duration of award	6 years

Item represents the cost of shares purchased during the reporting period.

No definition available.

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Item represents the number of shares that were distributed to participants.

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Item represents the number of shares held as of the end of the reporting period.

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Item represents the number of shares of our common stock that were purchased during the reporting period.

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No definition available.

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Item represents the number of shares that have vested and remain undistributed at the end of the reporting period.

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No definition available.

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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.

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No definition available.

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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.

+ References

No definition available.

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The duration of the terms of the arrangement, in which the employer lends funds to the ESOP.

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No definition available.

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

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No definition available.

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Employee Stock Ownership Plan, Loan Amount Outstanding

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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.

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No definition available.

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The minimum period that the individual is required to perform services in order to be eligibile to participate in the American Equity Investment Employee Stock Ownership Plan.

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No definition available.

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

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No definition available.

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

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No definition available.

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

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No definition available.

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The duration of time used for measuring performance and threshold goals.

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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.

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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.

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Amount of deferred tax expense from write-off of the deferred tax asset related to deductible stock options at exercise.

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The amount of the cost recognized during the period for defined contribution plans.

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Maximum amount the employee may contribute to a defined contribution plan.

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No definition available.

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The amount of plan compensation cost recognized during the period.

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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.

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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.

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Fair value of share-based compensation granted to nonemployees as payment for services rendered or acknowledged claims.

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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.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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Percentage of vesting of share-based compensation awards.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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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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Number of share instruments newly issued under a share-based compensation plan.

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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.

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