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INVESTMENTS (DETAILS 5) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net Investment Income [Line Items]
Gross investment income	$ 75,856	$ 111,198	$ 291,679	$ 318,673
Investment expenses	(9,294)	(7,769)	(27,508)	(23,223)
Net investment income	66,562	103,429	264,171	295,450
Fixed Maturities [Member]
Net Investment Income [Line Items]
Gross investment income	74,996	74,691	226,475	218,877
Other Investments [Member]
Net Investment Income [Line Items]
Gross investment income	(3,384)	32,127	45,868	87,406
Equity Securities [Member]
Net Investment Income [Line Items]
Gross investment income	2,022	3,871	9,609	8,419
Cash And Cash Equivalents [Member]
Net Investment Income [Line Items]
Gross investment income	2,081	382	9,127	2,915
Short-term Investments [Member]
Net Investment Income [Line Items]
Gross investment income	$ 141	$ 127	$ 600	$ 1,056

X

- Definition

The net gain or loss (both realized and unrealized) related to investments in certain entities that calculate net asset value per share and the amount after accretion (amortization) of discount (premium), of interest income and dividend income on nonoperating securities.

+ References

No definition available.

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X

- Definition

The net gain or loss (both realized and unrealized) related to investments in certain entities that calculate net asset value per share and the amount after accretion (amortization) of discount (premium) of interest income and dividend income on nonoperating securities, net of investment expense.

+ References

No definition available.

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X

- Definition

Amount of expenses related to the generation of investment income.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-04.2)

-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913



Reference 2: 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=26872669&loc=d3e20235-122688

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