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Significant Accounting Policies (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Prior Period Adjustment [Abstract]
Receipts credited to annuity policyholder account balances	$ 3,073,490	$ 2,738,553
Restatement Adjustment [Member]
Prior Period Adjustment [Abstract]
Receipts credited to annuity policyholder account balances		140,300
Impact of error in prior year financial statements, amount		$ 0

X

- Definition

Represents the net effect (amount) of a prior period error correction on the prior year financial statements.

+ References

No definition available.

+ Details

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X

- Definition

The cash inflow from an insurance contract under which the policy holder make a lump sum payment or a series of payments in exchange for periodic payments to the policyholder beginning immediately or at some future date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 24

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3521-108585



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 26

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3574-108585



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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 26, 31

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3255-108585

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