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Notes Payable Line of Credit Due 2014 (Details) (Line of Credit 2011 [Member], USD $) In Millions, unless otherwise specified | 9 Months Ended
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Sep. 30, 2012 banks
Line of Credit 2011 [Member] |
Line of Credit Facility [Line Items] |
Line of Credit Facility, Maximum Borrowing Capacity | $ 160
Line of Credit, Number of Banks in Agreement | 7
Line of Credit, Interest Rate, Floating, Applicable Margin | 2.00%
Line of Credit, Interest Rate, Floating, Adjusted LIBOR | 3.00%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.50%
Line of Credit Facility, Amount Outstanding | $ 0

X
- Definition The variable interest rate on a revolving line of credit that is equal to an alternate base rate (as defined in the drecit agreement) plus the adjusted LIBOR rate that is equal to this value. + References No definition available. + Details
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Period Type: | instant

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- Definition The variable interest rate on a revolving line of credit that is equal to an alternate base rate (as defined in the credit agreement) plus the applicable margin that is equal to this value. + References No definition available. + Details
Name: | ael_LineOfCreditInterestRateFloatingApplicableMargin
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- Definition The number of banks listed in the revolving line of credit agreement. + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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- Definition Amount borrowed under the credit facility as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | credit
Period Type: | instant

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- Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -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 SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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Balance Type: | credit
Period Type: | instant

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- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
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