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INVESTMENTS (DETAILS 7) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net Investment Income [Line Items]
Gross investment income	$ 98,927	$ 96,858	$ 156,495	$ 196,738
Investment expenses	(7,197)	(8,314)	(15,599)	(16,087)
Net investment income	91,730	88,544	140,896	180,651
Fixed Maturities [Member]
Net Investment Income [Line Items]
Gross investment income	77,621	77,998	153,596	144,086
Other Investments [Member]
Net Investment Income [Line Items]
Gross investment income	14,401	14,102	(12,477)	45,037
Equity Securities [Member]
Net Investment Income [Line Items]
Gross investment income	3,065	2,674	8,210	4,350
Mortgage loans [Member]
Net Investment Income [Line Items]
Gross investment income	1,807	281	3,492	294
Cash And Cash Equivalents [Member]
Net Investment Income [Line Items]
Gross investment income	1,868	1,678	3,303	2,777
Short-term Investments [Member]
Net Investment Income [Line Items]
Gross investment income	$ 165	$ 125	$ 371	$ 194

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

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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.

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- 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 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.9)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: 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

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