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Notes Payable Repurchase Agreements (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2013
Repurchase Agreements [Abstract] |  |
Repurchase Agreement, Maximum Amount Borrowed |  | $ 160.4
Repurchase Agreement, Average Borrowings | $ 10.0 | $ 5.0
Repurchase Agreement, Average Interest Rate |  | 0.32%

X
- Definition The average amount borrowed during the reporting period on repurchase agreements. + References No definition available. + Details
Name: | ael_RepurchaseAgreementAverageBorrowings
Namespace Prefix: | ael_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The average rate of interest paid on the amount borrowed on securities repurchase agreements during the period. + References No definition available. + Details
Name: | ael_RepurchaseAgreementAverageInterestRate
Namespace Prefix: | ael_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The maximum amount borrowed on repurchase agreements during the reporting period. + References No definition available. + Details
Name: | ael_RepurchaseAgreementMaximumAmountBorrowed
Namespace Prefix: | ael_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ael_RepurchaseAgreementsAbstract
Namespace Prefix: | ael_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration