v2.4.0.6

INVESTMENTS (DETAILS 5) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Net Investment Income [Line Items]
Gross investment income									$ 387,947	$ 427,299	$ 480,178
Investment expenses									(25,517)	(20,407)	(15,700)
Net investment income	102,362	49,396	100,018	110,655	107,889	111,800	82,584	104,619	362,430	406,892	464,478
Fixed Maturities [Member]
Net Investment Income [Line Items]
Gross investment income									337,616	352,357	385,418
Other Investments [Member]
Net Investment Income [Line Items]
Gross investment income									31,856	64,765	82,042
Equities [Member]
Net Investment Income [Line Items]
Gross investment income									11,186	2,900	3,765
Cash And Cash Equivalents [Member]
Net Investment Income [Line Items]
Gross investment income									5,697	5,836	8,302
Short-term Investments [Member]
Net Investment Income [Line Items]
Gross investment income									$ 1,592	$ 1,441	$ 651

X

- Definition

This item represents the net gain or loss, both realized and unrealized, on other investments, as well as the total of all interest and dividend income on available-for-sale debt and equity securities (including any amortization/accretion of discounts/premiums) and interest income earned on cash and cash equivalents.

+ References

No definition available.

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- Definition

This item represents the net gain or loss, both realized and unrealized, on other investments, as well as the total of all interest and dividend income on available-for-sale debt and equity securities (including any amortization/accretion of discounts/premiums) and interest income earned on cash and cash equivalents, net of related investment expenses.

+ References

No definition available.

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- Definition

Total expenses related to the generation of investment income in debt and equity securities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.9)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

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