SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - FAIR VALUE MEASUREMENTS - NARRATIVE (DETAILS) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012
Accounting Policies [Abstract]
Fixed maturity securities that contain embedded derivatives classified as trading securities	$ 180.6	$ 196.6
Fair Value Disclosures [Abstract]
Available for sale fixed maturities classified as level 3, investment grade, percent	90.00%
Available for sale maturities with significant unobservable inputs, structured securities, percent	38.00%
Fair value of level 3 fixed maturity securities valued using broker quotes, percentage	18.00%
Available for sale fixed maturities classified as level 3, corporate securities, percent	55.00%

Available for Sale Fixed Maturities with Significant Unobservable Inputs, Investment Grade, Percent

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Available for Sale Maturities with Significant Unobservable Inputs, Corporate Securities, Percent

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Available for Sale Maturities with Significant Unobservable Inputs, Structured Securities, Percent

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Fair Value, Fixed Maturity Securities Valued Using Broker Quotes, Percentage

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Fix Maturity Securities That Contain Embedded Derivatives Classified as Trading Securities

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