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Notes Payable and Amounts Due Under Repurchase Agreements (2021 Notes Narrative) (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2014
Jul. 17, 2013
2011 Line of Credit [Member]      
Debt Instrument [Line Items]      
Repayments of line of credit $ 15,000,000us-gaap_RepaymentsOfLinesOfCredit
/ us-gaap_LineOfCreditFacilityAxis
= ael_LineOfCredit2011Member
   
July 2021 Notes [Member]      
Debt Instrument [Line Items]      
Debt instrument, face amount     400,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_SeniorNotesMember
Interest rate   6.625%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= us-gaap_SeniorNotesMember
 
Deferred financing costs   $ 9,000,000us-gaap_DeferredFinanceCostsGross
/ us-gaap_DebtInstrumentAxis
= us-gaap_SeniorNotesMember