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Mortgage Loans on Real Estate (Mortgage Loan Portfolio Summarized by Geographic Region and Property Type) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	$ 2,570,950	$ 2,607,698
Percent	100.00%	100.00%
Office [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	533,472	590,414
Percent	20.80%	22.60%
Medical Office [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	104,025	125,703
Percent	4.00%	4.80%
Retail [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	729,497	711,364
Percent	28.40%	27.30%
Industrial/Warehouse [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	681,540	673,449
Percent	26.50%	25.80%
Hotel [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	43,784	61,574
Percent	1.70%	2.40%
Apartment [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	340,621	291,823
Percent	13.20%	11.20%
Mixed Use/Other [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	138,011	153,371
Percent	5.40%	5.90%
East [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	774,014	765,717
Percent	30.10%	29.40%
Middle Atlantic [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	145,663	156,489
Percent	5.70%	6.00%
Mountain [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	328,284	356,246
Percent	12.80%	13.70%
New England [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	14,700	21,324
Percent	0.60%	0.80%
Pacific [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	303,922	317,431
Percent	11.80%	12.20%
South Atlantic [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	500,612	483,852
Percent	19.50%	18.50%
West North Central [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	338,343	351,794
Percent	13.10%	13.50%
West South Central [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	$ 165,412	$ 154,845
Percent	6.40%	5.90%

X

- Definition

Represents the specific geographic distribution or property type distribution amount as a percentabe of the total amortzed cost of mortgage loans.

+ References

No definition available.

+ Details

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Namespace Prefix:	ael_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount before allowance of commercial loans issued to businesses to acquire, develop, construct, improve, or refinance land or building. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5066-111524



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Subparagraph a

-Article 9



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7(a))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.1(c))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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Balance Type:	debit
Period Type:	instant

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- Details

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