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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	Mar. 31, 2014	Dec. 31, 2013
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	$ 2,610,380	$ 2,607,698
Percent	100.00%	100.00%
Office [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	557,029	590,414
Percent	21.30%	22.60%
Medical Office [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	122,807	125,703
Percent	4.70%	4.80%
Retail [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	729,056	711,364
Percent	27.90%	27.30%
Industrial/Warehouse [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	690,442	673,449
Percent	26.50%	25.80%
Hotel [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	47,138	61,574
Percent	1.80%	2.40%
Apartment [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	313,330	291,823
Percent	12.00%	11.20%
Mixed Use/Other [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	150,578	153,371
Percent	5.80%	5.90%
East [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	793,717	765,717
Percent	30.40%	29.40%
Middle Atlantic [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	152,712	156,489
Percent	5.90%	6.00%
Mountain [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	343,166	356,246
Percent	13.10%	13.70%
New England [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	20,977	21,324
Percent	0.80%	0.80%
Pacific [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	313,896	317,431
Percent	12.00%	12.20%
South Atlantic [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	488,622	483,852
Percent	18.70%	18.50%
West North Central [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	343,660	351,794
Percent	13.20%	13.50%
West South Central [Member]
Mortgage Loans on Real Estate [Line Items]
Principal outstanding	$ 153,630	$ 154,845
Percent	5.90%	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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