FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Unobservable Input
Fixed maturities, held-to-maturity	$ 365,000,000	$ 300,000,000
Level 3
Unobservable Input
Financial instruments that are valued using broker quotes	216,000,000
Financial instruments with book value approximating to fair value	73,900,000	69,800,000
Level 3 | Other asset-backed securities
Unobservable Input
Financial instruments that are valued using broker quotes	195,000,000
Level 3 | Equity securities
Unobservable Input
Financial instruments with book value approximating to fair value	68,000,000
FHLB stock		65,500,000
Level 3 | Fixed maturities
Unobservable Input
Financial instruments with book value approximating to fair value	3,700,000
Level 3 | Other fixed maturity securities
Unobservable Input
Fixed maturities, held-to-maturity		4,300,000
Level 3 | Embedded derivatives - GMWB
Valuation of Level 3 Financial Instruments
Fair Value of Assets	156,287,000
Fair Value of Liabilities		169,041,000
Level 3 | Embedded derivatives - GMWB | Actuarial cash flow model | Low end of range
Unobservable Input
Lapse (as a percent)		0.00%
Utilization (as a percent)		93.00%
Nonperformance risk (as a percent)		0.09%
Level 3 | Embedded derivatives - GMWB | Actuarial cash flow model | High end of range
Unobservable Input
Lapse (as a percent)		24.00%
Utilization (as a percent)		100.00%
Nonperformance risk (as a percent)		1.34%
Level 3 | Embedded derivatives - GMWB | Actuarial cash flow model | Weighted Average
Unobservable Input
Mortality (as a percent)		57.00%
Level 3 | Annuity account balances
Valuation of Level 3 Financial Instruments
Fair Value of Liabilities	107,000,000	129,468,000
Level 3 | Annuity account balances | Actuarial cash flow model | Low end of range
Unobservable Input
Mortality (as a percent)	49.00%
Lapse (as a percent)	2.20%	2.20%
Nonperformance risk (as a percent)	0.15%	0.09%
Expenses per policy	88,000	88,000
Return on assets (as a percent)	1.50%	1.50%
Level 3 | Annuity account balances | Actuarial cash flow model | High end of range
Unobservable Input
Mortality (as a percent)	80.00%
Lapse (as a percent)	33.00%	45.00%
Nonperformance risk (as a percent)	1.06%	1.34%
Expenses per policy	102,000	108,000
Return on assets (as a percent)	1.85%	1.85%
Level 3 | Annuity account balances | Actuarial cash flow model | Weighted Average
Unobservable Input
Mortality (as a percent)		57.00%
Asset earned rate (as a percent)	5.37%	5.81%
Withdrawal rate (as a percent)	2.20%	2.20%
Level 3 | Embedded derivative - FIA
Valuation of Level 3 Financial Instruments
Fair Value of Liabilities	25,324,000
Level 3 | Embedded derivative - FIA | Actuarial cash flow model | Low end of range
Unobservable Input
Mortality (as a percent)	49.00%
Lapse (as a percent)	2.50%
Nonperformance risk (as a percent)	0.15%
Expenses per policy	83,000
Withdrawal rate (as a percent)	1.10%
Level 3 | Embedded derivative - FIA | Actuarial cash flow model | High end of range
Unobservable Input
Mortality (as a percent)	80.00%
Lapse (as a percent)	40.00%
Nonperformance risk (as a percent)	1.06%
Expenses per policy	97,000
Withdrawal rate (as a percent)	4.50%
Level 3 | Other asset-backed securities
Valuation of Level 3 Financial Instruments
Fair Value of Assets	545,808,000	596,143,000
Unobservable Input
Financial instruments that are valued using broker quotes		70,500,000
Level 3 | Other asset-backed securities | Discounted cash flow | Low end of range
Unobservable Input
Liquidity premium (as a percent)	1.00%	0.72%
Paydown rate (as a percent)	8.57%	8.51%
Level 3 | Other asset-backed securities | Discounted cash flow | High end of range
Unobservable Input
Liquidity premium (as a percent)	1.68%	1.68%
Paydown rate (as a percent)	16.87%	18.10%
Level 3 | Other asset-backed securities | Discounted cash flow | Weighted Average
Unobservable Input
Liquidity premium (as a percent)	1.08%	1.29%
Paydown rate (as a percent)	12.05%	11.40%
Level 3 | Other government-related securities
Valuation of Level 3 Financial Instruments
Fair Value of Assets		20,011,000
Level 3 | Other government-related securities | Discounted cash flow | Weighted Average
Unobservable Input
Spread over treasury (as a percent)		0.30%
Level 3 | Corporate bonds
Valuation of Level 3 Financial Instruments
Fair Value of Assets	1,555,898,000	168,007,000
Unobservable Input
Financial instruments that are valued using broker quotes	21,000,000
Financial instruments with book value approximating to fair value	$ 2,200,000
Level 3 | Corporate bonds | Discounted cash flow | Low end of range
Unobservable Input
Spread over treasury (as a percent)	0.11%	0.92%
Level 3 | Corporate bonds | Discounted cash flow | High end of range
Unobservable Input
Spread over treasury (as a percent)	6.75%	7.75%
Level 3 | Corporate bonds | Discounted cash flow | Weighted Average
Unobservable Input
Spread over treasury (as a percent)	2.06%	3.34%
Level 3 | Embedded derivatives - GMWB | Actuarial cash flow model | Low end of range
Unobservable Input
Mortality (as a percent)	49.00%
Lapse (as a percent)	0.00%
Utilization (as a percent)	97.00%
Nonperformance risk (as a percent)	0.15%
Level 3 | Embedded derivatives - GMWB | Actuarial cash flow model | High end of range
Unobservable Input
Mortality (as a percent)	80.00%
Lapse (as a percent)	24.00%
Utilization (as a percent)	103.00%
Nonperformance risk (as a percent)	1.06%