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Contingencies Commitments (Details) (USD $) In Millions, unless otherwise specified | Jun. 30, 2013
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Unrecorded Unconditional Purchase Obligation [Line Items] |
UnfundedCommitmentsToPrivateEquityLimitedPartnerships | $ 31.5
Other Commitment | $ 29.3

X
- Definition Amount that we have committed to investment partnerships, less what we have contributed as capital to date. + References No definition available. + Details
Name: | ael_UnfundedCommitmentsToPrivateEquityLimitedPartnerships
Namespace Prefix: | ael_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of secured bank loans that we have agreed to purchase as of the end of the reporting period. + References No definition available. + Details
Name: | ael_UnfundedCommitmentsToSecuredBankLoans
Namespace Prefix: | ael_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_UnrecordedUnconditionalPurchaseObligationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration