SUMMARY OF INVESTMENTS (Net Realized Investment Gains and Losses) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Gain (Loss) on Investments [Line Items]
Net realized investment gains (losses)	$ 7,270us-gaap_RealizedInvestmentGainsLosses	$ 8,695us-gaap_RealizedInvestmentGainsLosses	$ 5,453us-gaap_RealizedInvestmentGainsLosses
Available-for-sale Securities [Abstract]
Proceeds from sales	3,091	23,007	20,324
Gross realized gains	900	451	513
Gross realized losses	(56)	0	(37)
Fixed Maturities [Member] \| Held-to-maturity Securities [Member]
Gain (Loss) on Investments [Line Items]
Net realized investment gains (losses)	0	1	12
Fixed Maturities [Member] \| Available-for-sale Securities [Member]
Gain (Loss) on Investments [Line Items]
Net realized investment gains (losses)	3,353	3,211	3,408
Fixed Maturities [Member] \| Trading Securities, Change in Fair Value [Member]
Gain (Loss) on Investments [Line Items]
Net realized investment gains (losses)	609	1,183	683
Fixed Maturities [Member] \| Trading Securities, Sales [Member]
Gain (Loss) on Investments [Line Items]
Net realized investment gains (losses)	1,339	788	406
Fixed Maturities [Member] \| Other-than-temporary-impairment Charges [Member]
Gain (Loss) on Investments [Line Items]
Net realized investment gains (losses)	0	(139)	0
Equity Securities [Member] \| Available-for-sale Securities [Member]
Gain (Loss) on Investments [Line Items]
Net realized investment gains (losses)	1,732	3,739	698
Equity Securities [Member] \| Trading Securities, Change in Fair Value [Member]
Gain (Loss) on Investments [Line Items]
Net realized investment gains (losses)	238	(126)	250
Equity Securities [Member] \| Trading Securities, Sales [Member]
Gain (Loss) on Investments [Line Items]
Net realized investment gains (losses)	(1)	38	0
Equity Securities [Member] \| Other-than-temporary-impairment Charges [Member]
Gain (Loss) on Investments [Line Items]
Net realized investment gains (losses)	$ 0	$ 0	$ (4)

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This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 9

-Subparagraph (a)

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This item represents the gross loss realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

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The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

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

-Publisher FASB

-Name Accounting Standards Codification

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-Name Accounting Standards Codification

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The net realized gains or losses on investments during the period, not including gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity.

+ 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 210.7-04.3(a))

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 3

-Subparagraph a

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