This element represents the total fair market value of investments in certain entities that calculate net asset value per share (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments). This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements, but may also be used in both the balance sheet and disclosure in the same submission. This item represents alternative investments as of the balance sheet date which may include investments in certain hedge funds, venture capital funds, private equity funds, real estate partnerships or funds, and any other investment in which investee management calculates net asset value per share as the primary metric for investment value.

+ References+ Details

For an unclassified balance sheet, total of debt securities categorized neither as held-to-maturity nor trading.

+ References

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

-Publisher FASB

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 5: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

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-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 7: http://www.xbrl.org/2003/role/presentationRef

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-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.

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-Publisher FASB

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-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 10: http://www.xbrl.org/2003/role/presentationRef

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+ Details

FAIR VALUE MEASUREMENTS (DETAILS 2) (USD $) In Thousands, unless otherwise specified				6 Months Ended
	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2012 Income Approach [Member] Level 3 [Member] ABS - CLO Debt [Member]	Jun. 30, 2012 Income Approach [Member] Level 3 [Member] Other Investments - CLO-Equities [Member]	Jun. 30, 2012 Minimum [Member] Income Approach [Member] Level 3 [Member] ABS - CLO Debt [Member]	Jun. 30, 2012 Minimum [Member] Income Approach [Member] Level 3 [Member] Other Investments - CLO-Equities [Member]	Jun. 30, 2012 Maximum [Member] Income Approach [Member] Level 3 [Member] ABS - CLO Debt [Member]	Jun. 30, 2012 Maximum [Member] Income Approach [Member] Level 3 [Member] Other Investments - CLO-Equities [Member]	Jun. 30, 2012 Weighted Average [Member] Income Approach [Member] Level 3 [Member] ABS - CLO Debt [Member]	Jun. 30, 2012 Weighted Average [Member] Income Approach [Member] Level 3 [Member] Other Investments - CLO-Equities [Member]
Fair Value Inputs Assets Quantitative Information [Line Items]
Fixed maturities	$ 11,504,448	$ 10,940,100	$ 48,905
Other investments	$ 798,233	$ 699,320		$ 61,566
Credit spread					7.00%		9.20%		7.70%
Illiquidity discount					5.00%		20.00%		7.20%
Default rates						4.00%		5.00%		4.40%
Loss severity rate				53.50%						53.50%
Collateral spreads						2.60%		4.20%		3.20%
Estimated maturity dates (years)						2.1		6.4		5.2