INVESTMENT OPERATIONS - Schedule of Other-than-Temporary Impairments of Investments (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Investment [Line Items]
Other-than-temporary impairments	$ (14)	$ (366)	$ (715)	$ (494)
Non-credit impairment losses recorded in other comprehensive income	0	93	(2,949)	(7,765)
Net impairment losses recognized in earnings	(14)	(273)	(3,664)	(8,259)
Fixed maturities
Investment [Line Items]
Other-than-temporary impairments	(14)	(366)	(715)	(494)
Non-credit impairment losses recorded in other comprehensive income	0	93	(2,949)	(7,765)
Net impairment losses recognized in earnings	$ (14)	$ (273)	$ (3,664)	$ (8,259)

No definition available.

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- Definition

Noncredit portion of impairment gains (losses) on investments reclassified to other comprehensive income for those securities that meet the criteria to have impairment losses bifurcated between net income (credit losses) and other comprehensive income (noncredit losses).

+ References

No definition available.

+ Details

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- Definition

The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 8A
-URI http://asc.fasb.org/extlink&oid=109979856&loc=SL6284422-111562

+ Details

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- Definition

Amount of other-than-temporary impairment (OTTI) on investment in debt security, recognized in earnings.

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